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Color Television
Chassis
CT2.0U
RA
G_15870_001.eps 300606
Contents
Page
Contents
Page
71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 7 4. Mechanical Instructions 8 5. Service Modes, Error Codes, and Fault Finding 14 6. Block Diagrams, Test Point Overviews, and Waveforms Wiring Diagram 35 Block Diagram Video (SSB Only) 36 Block Diagram Audio (SSB Only) 37 Control & Clock Signals (SSB Only) 38 I2C (SSB Only) 39 Supply Lines Overview (SSB Only) 40 7. Circuit Diagrams and PWB Layouts Diagram SSB: DC / DC (B1A) 41 SSB: Supply + RS232 (B1B) 42 SSB: Channel Decoder (B2A) 43 SSB: Main Tuner (B2B) 44 SSB: MPIF Main: Video Source Selection (B3A) 45 SSB: MPIF Main: Supply (B3B) 46 SSB: MPIF Main: IF & SAW Filter (B3C) 47 SSB: MPIF Main: Audio Source Selection (B3D) 48 SSB: MPIF Main: Audio Amplifier (B3E) 49 SSB: PNX2015: Audio / Video (B4A) 50 SSB: PNX2015: DV I/O Interface (B4B) 51 SSB: PNX2015: Tunnelbus (B4C) 52 SSB: PNX2015: DDR Interface (B4D) 53 SSB: PNX2015: Standby & Control (B4E) 54 SSB: PNX2015: Supply (B4F) 55 SSB: PNX2015: Display Interface (B4G) 56 SSB: Viper: Control (B5A) 57 SSB: Viper: Main Memory (B5B) 58 SSB: Viper: A/V + Tunnelbus (B5C) 59
PWB 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76 71-76
8. 9.
10. 11.
SSB: Viper: Supply (B5D) 60 SSB: Viper: EEPROM (B5E) 61 SSB: Miscellaneous (B5F) 62 SSB: Video DAC (B6) 63 SSB: HDMI: Supply (B7A) 64 SSB: HDMI: I/O + Control (B7B) 65 SSB: Analog I/O (B7C) 66 SSB: UART (B7D) 67 SSB: Audio: Amplifier (B8A) 68 SSB: Audio: Connectors (B8B) 69 SSB: SRP List 70 MTV512 Board (2-->9) 77-84 Power Button Board (2): Connector 85 Power Button Board (3): IR Receiver 86 Power Button Board (4): LED Driver 87 Thermal Board 88 Side I/O Panel (1-->4) 89-92 Alignments 93 Circuit Descriptions, Abbreviation List, and IC Data Sheets 98 Abbreviation List 101 IC Data Sheets 104 Spare Parts List 110 Revision List 116
© Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by JH 0667 BG CD Customer Service
Printed in the Netherlands
Subject to modification
EN 3122 785 15870
EN 2
1.
CT2.0U RA
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connection Overview 1.3 Chassis Overview Notes: · Data below can deviate slightly from the actual situation, due to the different set executions. · Specifications are indicative (subject to change). 1.1.4 Miscellaneous Power supply: - Mains voltage (VAC) - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity
: 108 - 132 : 57 - 63
: +5 to +35 : 90% R.H.
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Resolution (HxV pixels) Min. contrast ratio Min. light output (cd/m2) Tuning system TV Color systems Video playback Cable Tuner bands Supported video formats Supported computer formats : : : : : : : : : : : : : : : : : : Projection, DLP HD5 50" (127 cm), 16:9 60" (152 cm), 16:9 1280 x 720p 1200:1 395 (50") 310 (60") PLL ATSC NTSC NTSC Unscrambled digital cable - QAM VHF, UHF, S, Hyper All inputs 240p, 480i, 480p, 720p, 1080i 640x480 @ 60Hz 800x600 @ 60Hz 1024x768 @ 60Hz 1280x768 @ 60Hz Power consumption (values are indicative) - Normal operation (W) : < 230 - Standby (W) : <1 Dimensions (WxHxD in inch) : 51.57x37.05x21.26 (50") : 60.83x41.22x25 (60") : 45/100 (50") : 55/121 (60")
Weight, stand included (kg/lbs)
1.2
Connection Overview
Note: The following connector color abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, and Ye= Yellow.
1.2.1
Side Connections
1.1.2
Sound Sound systems : : : : AV Stereo BTSC Dolby Digital (AC3) 2 x 10
Maximum power (WRMS) 1.1.3 Multimedia USB input
: USB1.1
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Figure 1-1 Side I/O connections S-Video (Hosiden): Video Y/C - In 1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPPP / 75 ohm Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm Mini Jack: Audio Headphone - Out Bk - Headphone 32 - 600 ohm / 10 mW
H H j j
jq jq jq
ot
Technical Specifications, Connections, and Chassis Overview
USB1.1
CT2.0U RA
1.
EN 3
HDMI 1: Digital Video, Digital Audio - In
1
2
3
4
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19 18
1 2
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Figure 1-2 USB (type A) 1 2 3 4 1.2.2 - +5V - Data (-) - Data (+) - Ground k jk jk H
Figure 1-4 HDMI (type A) connector 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - D2+ - Shield - D2- D1+ - Shield - D1- D0+ - Shield - D0- CLK+ - Shield - CLK- n.c. - n.c. - DDC_SCL - DDC_SDA - Ground - +5V - HPD - Ground Data channel Gnd Data channel Data channel Gnd Data channel Data channel Gnd Data channel Data channel Gnd Data channel j H j j H j j H j j H j j jk H j j H
Gnd
Rear Connections (under side)
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Figure 1-3 Rear connections (under side) AV3 S-Video (Hosiden): Video Y/C - In 1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPPP / 75 ohm Service Connector (UART) 1 - UART_TX Transmit 2 - Ground Gnd 3 - UART_RX Receive AV3 Cinch: Audio - In Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm AV3 Cinch: Video CVBS - In Ye - Video CVBS 1 VPP / 75 ohm Cinch: S/PDIF - Out Bk - Coaxial
DDC clock DDC data Gnd Hot Plug Detect Gnd
H H j j
Aerial - In - - F-type (US) k H j
Coax, 75 ohm
D
jq jq
jq
0.4 - 0.6VPP / 75 ohm
kq
AV2 Cinch: Video YPbPr - In Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm AV2 Cinch: Video CVBS - In Ye - Video CVBS 1 VPP / 75 ohm AV2 Cinch: Audio - In Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm AV1 Cinch: Video YPbPr - In Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm AV1 Cinch: Video CVBS - In Ye - Video CVBS 1 VPP / 75 ohm AV1 Cinch: Audio - In Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm
jq jq jq
jq
jq jq
jq jq jq
jq
jq jq
EN 4 1.3
1.
CT2.0U RA
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
ON/OFF BUTTON IR RECEIVER POWER SUPLY
LIGHT ENGINE KEYBOARD SIDE I/O MTV512 BOARD
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MTV512
SMALL SIGNAL BOARD
B
Figure 1-5 PWB/CBA locations
Safety Instructions, Warnings, and Notes
CT2.0U RA
2.
EN 5
2. Safety Instructions, Warnings, and Notes
Index of this chapter: 2.1 Safety Instructions 2.2 Warnings 2.3 Notes · Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3). Where necessary, measure the waveforms and voltages with (D) and without (E) aerial signal. Measure the voltages in the power supply section both in normal operation (G) and in stand-by (F). These values are indicated by means of the appropriate symbols. The semiconductors indicated in the circuit diagram and in the parts lists, are interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.
2.1
Safety Instructions
Safety regulations require the following during a repair: · Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA). · Replace safety components, indicated by the symbol h, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: · Route the wire trees correctly and fix them with the mounted cable clamps. · Check the insulation of the Mains/AC Power lead for external damage. · Check the strain relief of the Mains/AC Power cord for proper function. · Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply): 1. Unplug the Mains/AC Power cord and connect a wire between the two pins of the Mains/AC Power plug. 2. Set the Mains/AC Power switch to the "on" position (keep the Mains/AC Power cord unplugged!). 3. Measure the resistance value between the pins of the Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 Mohm and 12 Mohm. 4. Switch "off" the set, and remove the wire between the two pins of the Mains/AC Power plug. · Check the cabinet for defects, to prevent touching of any inner parts by the customer.
·
2.3.2
Schematic Notes · All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kohm). Resistor values with no multiplier may be indicated with either an "E" or an "R" (e.g. 220E or 220R indicates 220 ohm). All capacitor values are given in micro-farads (µ= x10-6), nano-farads (n= x10-9), or pico-farads (p= x10-12). Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF). An "asterisk" (*) indicates component usage varies. Refer to the diversity tables for the correct values. The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.
·
· · · ·
2.3.3
Rework on BGA (Ball Grid Array) ICs General Although (LF)BGA assembly yields are very high, there may still be a requirement for component rework. By rework, we mean the process of removing the component from the PWB and replacing it with a new component. If an (LF)BGA is removed from a PWB, the solder balls of the component are deformed drastically so the removed (LF)BGA has to be discarded. Device Removal As is the case with any component that, is being removed, it is essential when removing an (LF)BGA, that the board, tracks, solder lands, or surrounding components are not damaged. To remove an (LF)BGA, the board must be uniformly heated to a temperature close to the reflow soldering temperature. A uniform temperature reduces the risk of warping the PWB. To do this, we recommend that the board is heated until it is certain that all the joints are molten. Then carefully pull the component off the board with a vacuum nozzle. For the appropriate temperature profiles, see the IC data sheet. Area Preparation When the component has been removed, the vacant IC area must be cleaned before replacing the (LF)BGA. Removing an IC often leaves varying amounts of solder on the mounting lands. This excessive solder can be removed with either a solder sucker or solder wick. The remaining flux can be removed with a brush and cleaning agent. After the board is properly cleaned and inspected, apply flux on the solder lands and on the connection balls of the (LF)BGA. Note: Do not apply solder paste, as this has been shown to result in problems during re-soldering. Device Replacement The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be
2.2
Warnings
· All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD w). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the high voltage section. Never replace modules or other components while the unit is switched "on". When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.
· · ·
2.3
2.3.1
Notes
General · Measure the voltages and waveforms with regard to the chassis (= tuner) ground (H), or hot ground (I), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the
EN 6
2.
CT2.0U RA
Safety Instructions, Warnings, and Notes
avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin. Use only original spare-parts listed in the Service-Manuals. Not listed standard material (commodities) has to be purchased at external companies. Special information for lead-free BGA ICs: these ICs will be delivered in so-called "dry-packaging" to protect the IC against moisture. This packaging may only be opened shortly before it is used (soldered). Otherwise the body of the IC gets "wet" inside and during the heating time the structure of the IC will be destroyed due to high (steam-) pressure inside the body. If the packaging was opened before usage, the IC has to be heated up for some hours (around 90°C) for drying (think of ESD-protection!). Do not re-use BGAs at all! For sets produced before 1.1.2005, containing leaded soldering tin and components, all needed spare parts will be available till the end of the service period. For the repair of such sets nothing changes.
aligned under a microscope or magnifying glass. If this is not possible, try to align the (LF)BGA with any board markers. So as not to damage neighbouring components, it may be necessary to reduce some temperatures and times. More Information For more information on how to handle BGA devices, visit this URL: www.atyourservice.ce.philips.com (needs subscription, not available for all regions). After login, select "Magazine", then go to "Repair downloads". Here you will find Information on how to deal with BGA-ICs. 2.3.4 Lead-free Solder Philips CE is producing lead-free sets (PBF) from 1.1.2005 onwards. Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 5 and 6 refer to the production year, digits 7 and 8 refer to production week (in example below it is 1991 week 18).
·
·
·
In case of doubt whether the board is lead-free or not (or with mixed technologies), you can use the following method: · Always use the highest temperature to solder, when using SAC305 (see also instructions below). · De-solder thoroughly (clean solder joints to avoid mix of two alloys). Caution: For BGA-ICs, you must use the correct temperatureprofile, which is coupled to the 12NC. For an overview of these profiles, visit the website www.atyourservice.ce.philips.com (needs subscription, but is not available for all regions) You will find this and more technical information within the "Magazine", chapter "Repair downloads". For additional questions please contact your local repair help desk. 2.3.5 Alternative BOM identification In September 2003, Philips CE introduced a change in the way the serial number (or production number, see Figure 2-1) is composed. From this date on, the third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative BOM (Bill of Materials used for producing the specific model of TV set). It is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different O.E.M.s. By looking at the third digit of the serial number, the service technician can see if there is more than one type of B.O.M. used in the production of the TV set he is working with. He can then consult the At Your Service Web site, where he can type in the Commercial Type Version Number of the TV set (e.g. 28PW9515/12), after which a screen will appear that gives information about the number of alternative B.O.M.s used. If the third digit of the serial number contains the number 1 (example: AG1B033500001), then there is only one B.O.M. version of the TV set on the market. If the third digit is a 2 (example: AG2B0335000001), then there are two different B.O.M.s. Information about this is important for ordering the correct spare parts! For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26 = 35 different B.O.M.s can be indicated by the third digit of the serial number. 2.3.6 Practical Service Precautions · It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.
G_15870_063.eps 100706
Figure 2-1 Serial number example Regardless of the special lead-free logo (which is not always indicated), one must treat all sets from this date onwards according to the rules as described below.
P
b
Figure 2-2 Lead-free logo Due to lead-free technology some rules have to be respected by the workshop during a repair: · Use only lead-free soldering tin Philips SAC305 with order code 0622 149 00106. If lead-free solder paste is required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle. · Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400°C. To stabilise the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. · Adjust your solder tool so that a temperature of around 360°C - 380°C is reached and stabilised at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400°C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch "off" unused equipment or reduce heat. · Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to
·
Directions for Use
CT2.0U RA
3.
EN 7
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
EN 8
4.
CT2.0U RA
Mechanical Instructions
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Assy/Panel Removal 4.3 Set Re-assembly Notes: · Several models in this chassis range have a different mechanical construction, the instructions given in this chapter are therefore very model specific. · Figures below can deviate slightly from the actual situation, due to the different set executions. · Follow the disassemble instructions in described order.
4.1
Cable Dressing
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Figure 4-1 Cable dressing 1/3 (PSU etc., SSB/MTV module detached from the frame)
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Figure 4-2 Cable dressing 2/3 (Light Engine, rear)
Mechanical Instructions
CT2.0U RA
4.
EN 9
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Figure 4-3 Cable dressing 3/3 (Light Engine, front)
4.2
4.2.1
Assy/Panel Removal
Rear Cover Caution: Disconnect the Mains/AC Power cord before you remove the rear cover! 1. Remove fixation screws [1]. 2. Remove the rear cover.
1
1
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Figure 4-5 Keyboard / Side I/O module removal
1
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Figure 4-4 Rear cover removal
3 2
4.2.2
Keyboard / Side I/O Panel 1. 2. 3. 4. 5. Remove the rear cover, as described previously. Remove screws [1]. Take out the module. Unplug connectors [2]. Remove screws [3].
G_15870_029.eps 110706
When defective, replace the whole unit. Figure 4-6 Keyboard / Side I/O panel removal
EN 10
4.2.3
4.
CT2.0U RA
Mechanical Instructions
4.2.5 Right Speaker 1. 2. 3. 4. 4.2.6 Remove the rear cover, as described previously. Unplug the connectors. Remove the fixation screws. Remove the speaker.
Front Cover Remove the rear cover, as described previously. Remove the keyboard / side I/O panel. Remove screws [1]. `Open' the front cover just far enough to gain access to the connector [2] of the on/off button / IR receiver panel. 5. Unplug connector [2]. 6. Carefully remove the front cover and put it in a safe place. 1. 2. 3. 4.
Left Speaker 1. 2. 3. 4. 5. 6. Remove the rear cover, as described previously. Remove screws [1]. Loosen screws [2] for approx. 3 turns. Remove screws [3]. Pull fan bracket [4] towards you, against the heads of screws [2]. Pull air duct [5] gently towards you, to create a wider access to the speaker. Unplug the connectors from the speaker. Remove the fixation screws of the speaker. Remove the speaker. After replacement, carefully position air duct [5] and fan bracket [4] before you tighten the screws. The positioning pins near screws [1] must be correctly in place.
1
1
1
1
1
1
7. 8. 9. 10.
1
1 1
1 1 1
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Figure 4-7 Front cover removal 1/2
1
2
3 5 4
2
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Figure 4-10 Air duct 1/2
Figure 4-8 Front cover removal 2/2 4.2.4 Power Switch / IR Receiver Board 1. Remove the front cover, as described previously. 2. Remove screws [1].
5
4
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1
1
Figure 4-11 Air duct 2/2
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Figure 4-9 Power switch / IR receiver board
Mechanical Instructions
4.2.7 Small Signal Board (SSB) Remove the rear cover, as described previously. Remove screws [1]. Take out the SSB assy and put it directly behind the set. Remove screw [2]. Carefully unplug the fragile LVDS connector [3]. Unplug connectors [4]. Remove screws [5] and nut [6]. Remove screws [7]. Lift the shield (together with the MTV512 module) from the SSB module. 10. Remove screws [8]. 1. 2. 3. 4. 5. 6. 7. 8. 9.
CT2.0U RA
4.
EN 11
7
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Figure 4-15 SSB top shield
1 8
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Figure 4-12 SSB fixation Figure 4-16 SSB board
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4
3
4
4.2.8
Micro Processor Board (MTV512) 1. 2. 3. 4. 5. 6. 7. 8. Remove the rear cover, as described previously. Remove screws [1]. Take out the SSB assy and put it directly behind the set. Unplug connectors [2]. Remove screws [3]. Lift the MTV module from the SSB module. Remove fixation screws [4] from the serial connector. Remove screws [5].
2
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Figure 4-13 SSB connectors
1
5
5 5
5 5
5
6
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Figure 4-14 SSB I/O panel
Figure 4-17 SSB fixation
EN 12
4.
CT2.0U RA
Mechanical Instructions
4.2.9 Power Supply Unit (PSU) 1. 2. 3. 4. 5. Remove the rear cover, as described previously. Remove screws [1]. Take out the SSB assy and put it directly behind the set. Unplug connectors [2]. Remove screws [3].
3
2
3
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1
Figure 4-18 MTV512 module
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Figure 4-20 SSB fixation
5 4
3 3 2 3
3
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3
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Figure 4-19 MTV512 board Figure 4-21 Power supply unit
Mechanical Instructions
4.2.10 Projection Screen Removal 1. Remove the front cover, as described previously. 2. Remove screws [1]. 3. Remove the fixation strips [2].
CT2.0U RA
4.
EN 13
4.2.12 Light Engine Removal 1. 2. 3. 4. Remove rear cover, as described previously. Unplug connectors [1]. Remove screws [2]. Pull the light engine out of the set.
1 1
1
1
1
1
1
1
1
1
1 2 2 1 1 1 1 1 1 1 1 1 1 2
1 1
2
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2
2
Figure 4-22 Projection screen 4.2.11 Projection Lamp Replacement 1. 2. 3. 4. 5. Remove the rear cover, as described previously. Remove screws [1]. Pull out the lamp unit with grip [2]. Remove nut and lock washer [3]. Remove screws [4]. Figure 4-25 Light engine
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4.3
Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order. Notes: · While re-assembling, make sure that all cables are placed and connected in their original position. See figures "Cable dressing". · Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
1
2
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Figure 4-23 Projection lamp 1/2
4
3
4
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Figure 4-24 Projection lamp 2/2
EN 14
5.
CT2.0U RA
Service Modes, Error Codes, and Fault Finding
5. Service Modes, Error Codes, and Fault Finding
Index of this chapter: 5.1 Test Points 5.2 Service Modes 5.3 Stepwise Start-up 5.4 Service Tools 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Protections 5.8 Fault Finding and Repair Tips 5.9 Software Upgrading · · · in the channel map and could be different from the one corresponding to the physical channel 3. All picture settings at 50% (brightness, color, contrast). All sound settings at 50%, except volume at 25%. All service-unfriendly modes (if present) are disabled, like: (Sleep) timer. Child/parental lock. Picture mute (blue mute or black mute). Automatic volume levelling (AVL). Auto switch "off" (when no video signal was received for 10 minutes). Skip/blank of non-favorite pre-sets. Smart modes. Auto store of personal presets. Auto user menu time-out.
5.1
Test Points
As most signals are digital, it will be almost impossible to measure waveforms with a standard oscilloscope. Therefore, waveforms are not given in this manual. Several key ICs are capable of generating test patterns, which can be controlled via ComPair. In this way it is possible to determine which part is defective. Perform measurements under the following conditions: · Service Default Mode. · Video: Color bar signal. · Audio: 3 kHz left, 1 kHz right.
5.2
Service Modes
Service Default Mode (SDM) and Service Alignment Mode (SAM) offer several features for the service technician, while the Customer Service Mode (CSM) is used for communication between a Customer Helpdesk and a customer. There is also the option of using ComPair, a hardware interface between a computer (see requirements below) and the TV chassis. It offers the ability of structured troubleshooting, test pattern generation, error code reading, software version readout, and software upgrading. Minimum requirements for ComPair: a Pentium processor, Windows 95/98, and a CD-ROM drive (see also paragraph "ComPair").
How to Activate SDM Use one of the following methods: · Use the standard RC-transmitter and key in the code "062596", directly followed by the "MENU" button. Note: It is possible that, together with the SDM, the main menu will appear. To switch it "off", push the "MENU" button again. · Short for a moment the two solder pads [1] on the SSB, with the indication "SDM" (on the picture they are located underneath the sticker). They are located outside the shielding. Activation can be performed in all modes, except when the set has a problem with the Stand-by Processor. See figure "SDM and SPI service pads".
1
5.2.1
Service Default Mode (SDM) Purpose · To create a pre-defined setting, to get the same measurement results as given in this manual. · To override SW protections (only applicable for protections detected by stand-by processor) and make the TV start up to the step just before protection (a sort of automatic stepwise start up). See paragraph "Stepwise Start Up". · To start the blinking LED procedure (not valid in protection mode). Specifications Table 5-1 SDM default settings Default system PAL B/G NTSC M Purpose · To perform (software) alignments. · To change option settings. · To easily identify the used software version. · To view operation hours. · To display (or clear) the error code buffer. 5.2.2 Figure 5-1 SDM and SPI service pads
G_15870_047.eps 100706
After activating this mode, "SDM" will appear in the upper right corner of the screen (if you have picture). How to Navigate When you press the "MENU" button on the RC transmitter, the set will toggle between the SDM and the normal user menu (with the SDM mode still active in the background). How to Exit SDM Use one of the following methods: · Switch the set to STAND-BY via the RC-transmitter. · Via a standard customer RC-transmitter: key in "00"sequence. Service Alignment Mode (SAM)
Region Europe, AP-PAL/Multi NAFTA, AP-NTSC, LATAM ·
Freq. (MHz) 475.25 61.25 (ch. 3)
Tuning frequency 61.25 MHz for NTSC: The TV shall tune to physical channel 3 only if channel 3 is an analog channel or if there is no channel 3 installed in the channel map. If there is a digital channel installed in channel 3, then the frequency to which the set will tune, would be as specified
Service Modes, Error Codes, and Fault Finding
How to Activate SAM Via a standard RC transmitter: key in the code "062596" directly followed by the "INFO" button. After activating SAM with this method, a service warning will appear on the screen,
CT2.0U RA
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EN 15
you can continue by pressing the red button on the RC. Then you have access to the following menu:
SAM-menu Hardware info A. SW version ED10U-1.0.1.0_07892 B. SBY PROC version 001.008.002.014 C. Production code YA1A0621013594 289 No Errors
Operation hours Errors Defective module Reset error buffer Alignments
Start now General Whitepoint Tuner AGC Color temperature White point red White point green White point blue Red BL offset Green BL offset Picture mute Virgin mode 2 CS Korea 32 Normal / Warm / Cool 127 127 127 7 7 Off / On Off / On Off None / One tuner ds / Two tuner ds Off / On No / Yes 038 (50" Coretronic DLP) Off / On Off / On No spider None / 2D comb / 3D comb Off / Mono / Stereo Off / On None / With analog audio / Without analog audio None / With analog audio / Without analog audio None / USB 1.1 / USB 2.0 + Cardreader Not present Off
Dealer options
Personal options
Options
PIP/DS Data
Dualscreen EPG RRT Screen Scanning backlight Dimming backlight
Display
Video repro
Picture processing Comb filter Ambient light MOP
Source selection
HDMI1 HDMI2 USB version IEEE1394 Ethernet SPDIF inputs
Audio repro
None / 1 connector / 2 connectors Subwoofer internal present Off / On Acoustic system None / ... / 50DLP / 60DLP Alternative tuner Philips TD1336s Off 00016 00000 00033 14979 00038 00000 00544 00000 Store (completed)
Miscellaneous
Tuner type Hotel mode Option numbers Group 1 Group 2 Store Initialise NVM Store SW maintenance Store (completed) SW events Display Clear Test reboot HW events Display Clear DLP Menu DLP Status Thermal Degree Fan1 Rotation Rate Fan2 Rotation Rate Lamp Life MTV512 MCU Version DLP Setting Bright-R Bright-G Bright-B Contrast-R Contrast-G Contrast-B Reset lamp life Gamma Test Pattern
Start now (push OK to view log-file) Start now (push OK to clear log-file) Start now (push OK to reboot) Start now (push OK to view log-file) Start now (push OK to clear log-file) 33 NORMAL NORMAL 162 H A18 0 0 0 100 100 100 Ok Film / Graphic / Video Ok G_15870_064.eps 100706
Figure 5-2 SAM menu
EN 16
5.
CT2.0U RA
Service Modes, Error Codes, and Fault Finding
Contents of SAM: · Hardware Info. A. VIPER SW Version. Displays the software version of the VIPER software (main software) (example: ED10U-1.2.3.4_12345 = AAAAB_X.Y.W.Z_NNNNN). · AAAA= the chassis name. · B= the region: A= AP, E= EU, L= Latam, U = US. · X.Y.W.Z= the software version, where X is the main version number (different numbers are not compatible with one another) and Y is the sub version number (a higher number is always compatible with a lower number). The last two digits are used for development reasons only, so they will always be zero in official releases. · NNNNN= last five digits of 12nc code of the software. B. SBY PROC Version. Displays the software version of the stand-by processor. C. Production Code. Displays the production code of the TV, this is the serial number as printed on the back of the TV set. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee in a possibility to do this. · Operation Hours. Displays the accumulated total of operation hours (not the stand-by hours). Every time the TV is switched "on/off", 0.5 hours is added to this number. · Errors. (Followed by maximal 10 errors). The most recent error is displayed at the upper left (for an error explanation see paragraph "Error Codes"). · Defective Module. Here the module that generates the error is displayed. If there are multiple errors in the buffer, which are not all generated by a single module, there is probably another defect. It will then display the message "UNKNOWN" here. · Reset Error Buffer. When you press "cursor right" and then the "OK" button, the error buffer is reset. · Alignments. This will activate the "ALIGNMENTS" submenu. · Dealer Options. Extra features for the dealers. · Options. Extra features for Service. · Initialise NVM. When an NVM was corrupted (or replaced) in the former EMG based chassis, the microprocessor replaces the content with default data (to assure that the set can operate). However, all preferences and alignment values are gone now, and option numbers are not correct. Therefore, this was a very drastic way. In this chassis, the procedure is implemented in another way: The moment the processor recognizes a corrupted NVM, the "initialize NVM" line will be highlighted. Now, you can do two things (dependent of the service instructions at that moment): Save the content of the NVM via ComPair for development analysis, before initializing. This will give the Service department an extra possibility for diagnosis (e.g. when Development asks for this). Initialize the NVM (same as in the past, however now it happens conscious). Note: When you have a corrupted NVM, or you have replaced the NVM, there is a high possibility that you will not have picture any more because your display option is not correct. So, before you can initialize your NVM via the SAM, you need to have a picture and therefore you need the correct display option. To adapt this option, use ComPair. The correct HEX values for the options can be found in the table below.
Service Modes, Error Codes, and Fault Finding
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5.
EN 17
Display option 000 001 002 003 004 005 006
HEX 00 01 02 03 04 05 06
Display type PDP PDP PDP LCD LCD LCD LCD
Brand SDI SDI FHP LPL LPL LPL Sharp
SIZE 42" 50" 42" 30" 37" 42" 32"
Full HD
Clear LCD
Resolution vertical 768p 768p 1024i 768p 768p 768p 768p
Resolution horizontal 1024 1366 1024 1280 1366 1366 1366
Code number S42AX-YD01(PP42AX-007A) S50HW-XD03 FPF42C128128UC-52 (A1) LC300W01-A3P7 LC370W01-A6 LC420W02-A6 LQ315T3LZ13 (ASV1) LQ315T3LZ23 (ASV2.2)(5Vtcon) LQ315T3LZ23 (ASV2.2)(12Vtcon) S42SD-YD05 (V3) FPF37C128128UB-72 n.a. T296XW01 T296XW01V2 T296XW01V3 LC320W01-A6K1 T315XW01V5 LQ370T3LZ21 (ASV2) LQ370T3LZ44 (ASV2.2) LC420WU1-SL01 S37SD-YD02 not used FPF42C128135UA-52 not used n.a. n.a. LC260WX2-SL01 LC320WX2-SL01 not used S42SD-YD07(PP42SD-015A) (V4) S42SD-YD07(PP42SD-015B) (V4) S42SD-YD07(PP42SD-015F) (V4) S42AX-YD01(PP42AX-007A) (V4) S42AX-YD01(PP42AX-008A) (V4) S42AX-YD01(PP42AX-008B) (V4) S42AX-YD02(PP42AX-009A) (W1) FPF42C128128UD-51 (A2) S50HW-XD04(PP50HW-005A) (V4) S50HW-XD04(PP50HW-005B) (V4) S50HW-XD04(PP50HW-005E) (V4) S50HW-YD01(PP50HW-010A) (W1) LQ370D3LZ13 (ASV2.2) T315XW01-V3 LW370D3LZ1x (ASV 3 first samples) LK370D3LZ33 (ASV 3) LC200WX1-SL01 QD23HL02 REV01 QD23HL02 REV01(03) ? ? ? FPF42C128135UA-52 (A3) ? ? LK315T3LZ43 (ASV 2.3) LC420WX2-SLA1 S63HW-XD04 LK370T3LZ63 (ASV 3) LK370T3LZ53 (ASV 2.3) LC260WX2-SLB2 LC320W01-SL06 LC420W02-SLB1 QD26HL02-REV01 QD26HL02-REV02 T260XW02V4 T315XW01V9 T370XW01V1 T315XW02V5 LC370WX1-SL04 PDP42X3 LC420WU2-SLA1
12 NC 9322 225 38682 9322 215 26682 9322 212 78682 9322 198 00682 9322 220 87682 9322 226 39682 9322 209 35682 9322 226 58682 9322 226 16682 9322 215 27682 9322 217 56682 n.a. 9322 206 49682 9322 219 45682 9322 213 33682 9322 217 44682 9322 231 69682 ? 9322 228 99682 9322 217 39682 not used 9322 235 43682 not used n.a. n.a. 9322 221 01682 9322 241 46682 not used 9322 226 37682 9322 226 96682 9322 233 81682 9322 225 38682 9322 226 95682 9322 233 80682 9322 240 08682 not used 9322 226 54682 9322 226 97682 9322 233 79682 9322 240 25682 9322 228 48682 see partslist for 12NC not used 9322 242 22682 9322 222 90682 9322 223 91682 9322 232 69682
Dimming NA NA NA analog analog analog analog
Nr. of bits (1) 8 10 (8) 10 (8) 8 8 8 8
2k5
2k6 full
2k6 baby
2k7
X X
007 008 009 010
07 08 09 0A
PDP PDP LCOS XION LCD
SDI FHP AUO
42" 37" 30"
480p 1024i 720p 768p
852 1024 1280 1280
NA NA NA analog
8 10 8 8
011 012 013 014 015 016 017 018 019 020 021 022 023 024
0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18
LCD LCD LCD LCD PDP PDP PDP PDP LCOS VENUS LCOS VENUS LCD LCD PDP PDP
LPL AUO Sharp LPL SDI FHP FHP FHP
32" 32" 37" 42" 37" 37" 42" 55" X
768p 768p 768p 1080p 480p 1080i 1080i 768p 720p 1080p 768p 768p 480p 480p
1366 1366 1366 1920 852 1024 1024 1366 1280 1920 1366 1366 852 852
analog PWM analog PWM NA NA NA NA NA NA PWM analog NA NA
8 8 8 8
X
X 10
X LPL LPL LGE SDI 26" 32" 42" 42" X
8 8 8 10 (8)
S* X X
025
19
PDP
SDI
42"
768p
1024
NA
10 (8)
X
X
026 027
1A 1B
PDP PDP
FHP SDI
42" 50"
1024i 768p
1024 1366
NA NA
8 10(8)
X
X
028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061
1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38
LCD LCD LCD LCD LCD LCD ECO PTV ECO PTV ECO PTV PDP DLP DLP LCD LCD PDP LCD LCD LCD LCD LCD LCD LCD LCD LCD LCD LCD PDP LCD LCD
Sharp AUO Sharp Sharp LPL QDI
37" 32" 37" 37" 20" 23" 51" 55" 61" 42" 50" 60" 32" 42" 63" 37" 37" 26" 32" 42" 26" 26" 32" 37" 32" 37" 42" 42" 47"
X X X X X
1080P 768p 1080p 1080P 768p 768p 1080i 1080i 1080i 1024I 720p 720p 768p 768p 768p 768p 768p 768p 768 p 768p 768p 768p 768p 768p 768p 768p 768p 1080p 1080p
1920 1366 1920 1920 1366 1366 1366 1366 1366 1024 1280 1280 1366 1366 1366 1366 1366 1366 1366 1366 1366 1366 1366 1366 1366 1366 1024 1920 1920
analog PWM (analog) PWM PWM tbd tbd NA NA NA NA NA NA PWM (analog) analog NA PWM PWM (analog) PWM PWM PWM PWM PWM PWM PWM PWM PWM NA PWM PWM
10(8) 8 10(8) 10(8)
X X X X S S X
n.a. (8) n.a. (8) n.a. (8) 10 10 8 X X
S S S S S X X X X X X S X S S X S X X X
FHP
9322 235 43682
Sharp LPL SDI Sharp Sharp LPL LPL LPL QDI AUO AUO AUO AUO LPL LGE LPL LPL
X X
X X
9322 235 32682 9322 240 80682 see partslist for 12NC see partslist for 12NC 9322 235 83682 9322 234 13682 9322 230 03682 9322 234 12682 9322 227 29682 9322 235 05682 9322 231 90682 9322 231 89682 9322 233 78682 see partslist for 12NC 9322 233 19682 see partslist for 12NC 8204 001 50441
8 8 8 8 8 8 8 8 8 10
S
3C 3C
LCD LCD
Tbd Tbd
? ?
X X
768p 768p
1366 1366
100/120Hz 1 silicon 100/120Hz final
st
PWM PWM
10 10
X X
E_06532_030.eps 220606
Figure 5-3 Display type table · · Store. All options and alignments are stored when pressing "cursor right" and then the "OK"-button SW Maintenance. SW Events. Not useful for service purposes. In case of specific software problems, the development department can ask for this info. HW Events. Not functional at the moment this manual is released, description will be published in an update manual if the function becomes available. Operation hours PDP. Displays the accumulated total of PDP operation hours. · With the "CURSOR LEFT/RIGHT" keys, it is possible to: (De) activate the selected menu item. (De) activate the selected submenu.
How to Exit SAM Use one of the following methods: · Press the "MENU" button on the RC-transmitter. · Switch the set to STAND-BY via the RC-transmitter. Note: As long as SAM is activated, it is not possible to change a channel. This could hamper the White Point alignments because you cannot choose your channel/frequency any more. Workaround: after you have sent the RC code "062596 INFO" you will see the service-warning screen, and in this stage it is still possible to change the channel (so before pressing the "OK" button).
·
How to Navigate · In SAM, you can select the menu items with the "CURSOR UP/DOWN" key on the RC-transmitter. The selected item will be highlighted. When not all menu items fit on the screen, move the "CURSOR UP/DOWN" key to display the next/previous menu items.
EN 18
5.2.3
5.
CT2.0U RA
Service Modes, Error Codes, and Fault Finding
Change via "MENU", "TV", "PICTURE", "DIGITAL PROCESSING". TV System. Gives information about the video system of the selected transmitter. M: NTSC M signal received ATSC: ATSC signal received Center Mode. Not applicable. DNR. Gives the selected DNR setting (Dynamic Noise Reduction), "OFF", "MINIMUM", "MEDIUM", or "MAXIMUM". Change via "MENU", "TV", "PICTURE", "DNR" Noise Figure. Gives the noise ratio for the selected transmitter. This value can vary from 0 (good signal) to 127 (average signal) and to 255 (bad signal). For some software versions, the noise figure will only be valid when "Active Control" is set to "medium" or "maximum" before activating CSM. Source. Indicates which source is used and the video/ audio signal quality of the selected source. (Example: Tuner, Video/NICAM) Source: "TUNER", "AV1", "AV2", "AV3", "HDMI 1", "SIDE". Video signal quality: "VIDEO", "SVIDEO", "RGB 1FH", "YPBPR 1FH 480P", "YPBPR 1FH 576P", "YPBPR 1FH 1080I", "YPBPR 2FH 480P", "YPBPR 2FH 576P", "YPBPR 2FH 1080I", "RGB 2FH 480P", "RGB 2FH 576P" or "RGB 2FH 1080I". Audio signal quality: "STEREO", "SPDIF 1", "SPDIF 2", or "SPDIF". Audio System. Gives information about the audible audio system. Possible values are "Stereo", "Mono", "Mono selected", "Analog In: No Dig. Audio", "Dolby Digital 1+1", "Dolby Digital 1/0", "Dolby Digital 2/0", "Dolby Digital 2/1", "Dolby Digital 2/2", "Dolby Digital 3/0", "Dolby Digital 3/1", "Dolby Digital 3/2", "Dolby Digital Dual I", "Dolby Digital Dual II", "MPEG 1+1", "MPEG 1/0", "MPEG 2/0". This is the same info as you will see when pressing the "INFO" button in normal user mode (item "signal"). In case of ATSC receiving there will be no info displayed. Tuned Bit. Indicates if the selected preset is automatically tuned (via "Automatic Installation" in the setup menu) or via the automatic tuning system of the TV. In this case "Tuned bit" will show "YES". If the TV was not able to auto-tune to the correct frequency, this item will show "NO". So if "NO" is displayed, it could indicate that the customer has manually tuned to a frequency which was too far from a correct frequency, that the TV was not able to auto-tune any more. Preset Lock. Indicates if the selected preset has a child lock: "LOCKED" or "UNLOCKED". Change via "MENU", "TV", "CHANNELS", "CHANNEL LOCK". Lock After. Indicates at what time the channel lock is set: "OFF" or e.g. "18:45" (lock time). Change "MENU", "TV", "CHANNELS", "LOCK AFTER". TV Ratings Lock. Indicates the "TV ratings lock" as set by the customer. Change via "MENU", "TV", "CHANNELS", "TV RATINGS LOCK". Possible values are: "ALL", "NONE", "TV-Y", "TV-Y7", "TV-G", "TV-PG", "TV-14" and "TV-MA". Movie Ratings Lock. Indicates the "Movie ratings lock" as set by the customer. Change via "MENU", "TV", "CHANNELS", "MOVIE RATINGS LOCK". Possible values are: "ALL", "NR", "G", "PG", "PG-13", "R", "NC-17" and "X". V-Chip Tv Status. Indicates the setting of the V-chip as applied by the selected TV channel. Same values can be shown as for "TV RATINGS LOCK". V-Chip Movie Status. Indicates the setting of the V-chip as applied by the selected TV channel. Same values can be shown as for "MOVIE RATINGS LOCK". Options 1. Gives the option codes of option group 1 as set in SAM (Service Alignment Mode). Options 2. Gives the option codes of option group 2 as set in SAM (Service Alignment Mode). AVL. Indicates the last status of AVL (Automatic Volume Level): "ON" or "OFF". Change via "MENU", "TV", "SOUND", "AVL". AVL can not be set in case of digital audio reception (e.g. Dolby Digital or AC3)
Customer Service Mode (CSM) Purpose When a customer is having problems with his TV-set, he can call his dealer or the Customer Helpdesk. The service technician can then ask the customer to activate the CSM, in order to identify the status of the set. Now, the service technician can judge the severity of the complaint. In many cases, he can advise the customer how to solve the problem, or he can decide if it is necessary to visit the customer. The CSM is a read only mode; therefore, modifications in this mode are not possible. How to Activate CSM Key in the code "123654" via the standard RC transmitter. Note: Activation of the CSM is only possible if there is no (user) menu on the screen! How to Navigate By means of the "CURSOR-DOWN/UP" knob on the RCtransmitter, you can navigate through the menus. Contents of CSM · SW Version (example: ED10U-1.2.3.4_12345). Displays the built-in main software version. In case of field problems related to software, software can be upgraded. As this software is consumer upgradeable, it will also be published on the Internet. · SBY Processor Version. Displays the built-in stand-by processor software version. Upgrading this software will be possible via a PC and a ComPair interface (see chapter Software upgrade). · Set Type. This information is very helpful for a helpdesk/ workshop as reference for further diagnosis. In this way, it is not necessary for the customer to look at the rear of the TV-set. Note that if an NVM is replaced or is initialized after corruption, this set type has to be re-written to NVM. ComPair will foresee a possibility to do this. · Production Code. Displays the production code (the serial number) of the TV. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee a possibility to do this. · Code 1. Gives the latest five errors of the error buffer. As soon as the built-in diagnose software has detected an error the buffer is adapted. The last occurred error is displayed on the leftmost position. Each error code is displayed as a 2-digit number. When less than 10 errors occur, the rest of the buffer is empty (00). See also paragraph Error Codes for a description. · Code 2. Gives the first five errors of the error buffer. See also paragraph Error Codes for a description. · Headphone Volume. Gives the last status of the headphone volume, as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). Change via"MENU", "TV", "SOUND", "HEADPHONE VOLUME". · Dolby. Indicates whether the received transmitter transmits Dolby sound ("ON") or not ("OFF"). Attention: The presence of Dolby can only be tested by the software on the Dolby Signaling bit. If a Dolby transmission is received without a Dolby Signaling bit, this indicator will show "OFF" even though a Dolby transmission is received. · Sound Mode. Indicates the by the customer selected sound mode (or automatically chosen mode). Possible values are "STEREO" and "VIRTUAL DOLBY SURROUND". Change via "MENU", "TV", "SOUND", "SOUND MODE". It can also have been selected automatically by signaling bits (internal software). · Tuner Frequency. Not applicable for US sets. · Digital Processing. Indicates the selected digital mode. Possible values are "STANDARD" and "PIXEL PLUS". · ·
· ·
·
·
·
·
·
·
·
·
·
· · ·
Service Modes, Error Codes, and Fault Finding
· Delta Volume. Indicates the last status of the delta volume for the selected preset as set by the customer: from "-12" to "+12". Change via "MENU", "TV", "SOUND", "DELTA VOLUME". HDMI key validity. Indicates the key's validity. IEEE key validity. Indicates the key's validity (n.a.). POD key validity. Indicates the key's validity (n.a.). Digital Signal Quality. Indicates quality of the received digital signal (0= low).
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· · · ·
How to Exit CSM Press any key on the RC-transmitter (with exception of the "CHANNEL +/-", "VOLUME", "MUTE" and digit (0-9) keys).
when the TV is in a protection state detected via the Stand-by Processor (and thus blinking an error) and SDM is activated via shortcutting the pins on the SSB, the TV starts up until it reaches the situation just before protection. So, this is a kind of automatic stepwise start-up. In combination with the start-up diagrams below, you can see which supplies are present at a certain moment. Important to know here is, that if e.g. the 3V3 detection fails (and thus error 11 is blinking) and the TV is restarted via SDM, the Stand-by Processor will enable the 3V3, but will not go to protection now. The TV will stay in this situation until it is reset (Mains/AC Power supply interrupted). The abbreviations "SP" and "MP" in the figures stand for: · SP: protection or error detected by the Stand-by Processor. · MP: protection or error detected by the VIPER Main Processor.
5.3
Stepwise Start-up
The stepwise start-up method, as known from FTL/FTP sets is not valid any more. The situation for this chassis is as follows:
Power Management
Power On Command Sequence
start
SSB
12V turn on 12V to MCU MCU initialize (minimum 15sec to com plete)
MTV 512 MCU
EBJ initialize (max. 13 sec to com plete). Video blank and audio mu te Send message yes Power time out 35 sec? no
MCU send "initialize complete" to SSB. Note: This message shall be sent at 1 sec interval till SSB Ack for a period of 10 sec
Check message Fatal Comm Error ShutDown
No messag
MCU init complete
MCU check mode send "Mode" message to SSB. Note: This message shall be sent at 0.2 sec interval till SSB Ack for a period of 1 sec Send message
yes
Check m ode timeout 2 sec? no CCA Mode Normal mode ISP mode
Check mode
No messag Set UART MUX procedure MCU send "I am alive" message Set UART MUX procedure
CCA Mode
Normal Mode
ISP mode End
SSB suspend comm to mcu and maintain 12V. Stop chking "I am alive" msg
SSB suspend comm to mcu and maintain 12V. Stop chking "I am alive" msg
.
Send cca table and video mute off to MCU
SSB and MTV512 MCU will execute the initialization procedure upon receiving 12V. A buffer of 10 sec is catered where "initialize complete" message is sent every second for 10 times to ensure that SSB will receive this message even in the situa tion of MTV512 MCU complete initialization earlier than SSB.
End
G_15870_048.eps 120706
Figure 5-4 Power management - Power on
EN 20
5.
CT2.0U RA
Service Modes, Error Codes, and Fault Finding
Abnormal State Detection
The MTV512 MCU shall turn-off OE system when any abnormal state occurs. Triggering of the state is shown
MCU (running time)
Host(running time)
MTV 512 MCU
Check "I am alive" message Check "I am alive" msg
Abnormal detection no yes Found abnormal state Send "I am alive" msg to Send abnormal SSB, message to ho st indicating critical error no Send "I am alive" msg to SSB , indicating no error
Time out? no no yes
"I am message alive" no message receive? critical? yes Received abnormal messa e from MCU g yes Error present ?
Set time out error
TV510 send "Get yes Error" msg to MCU, and upogSSB send n receivin "Erro "get error" msg r" data from MCU, TV5ceed pro 10 to MCU to error exception
Check state Lamp fail Fan rotation to low
Thermal too high MCU return error to Host check whicnormal h one SSB ab Error exceptocess pr ion state be triggered and execute appropriate procedure SSB store error in error buffer
normal
Turn on lamp LED
Turn on thermal LED
Turn on thermal & lamp LED simultaneously
n no o
Error critical ? yes Error end exception process
Shut down OE system
end
end
G_15870_049.eps 110706
Figure 5-5 Power management - Error detected
Service Modes, Error Codes, and Fault Finding
CT2.0U RA
5.
EN 21
Power Off Command Sequence
The power-off sequence is as follows:
Start
Host sends Power down mode enter"" to MCU Host get power-off command
YES SSB mute TV510 mute video video and audio on 60 sec count down done? MCU send message "I am alive" or "powerdown mode exit"msg to host
no
10 SEC count down done? Chk `Power down mode exit' or "I am alive command"command ?
Other keys or no key press
no
After 60 sec
Key press? Received command
Have warm-up key Host Power-off 12v SSB unmute and run wake-up procedure
end
G_15870_050.eps 110706
Figure 5-6 Power management - Power off
5.4
5.4.1
Service Tools
ComPair Introduction ComPair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. ComPair is a further development on the European DST (service remote control), which allows faster and more accurate diagnostics. ComPair has three big advantages: 1. ComPair helps you to quickly get an understanding on how to repair the chassis in a short time by guiding you systematically through the repair procedures. 2. ComPair allows very detailed diagnostics (on I2C level) and is therefore capable of accurately indicating problem areas. You do not have to know anything about I2C commands yourself because ComPair takes care of this. 3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the microprocessor is working) and all repair information is directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective chassis, schematics and PWBs are only a mouse click away. Specifications ComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair interface box is connected to the PC via a serial (or RS-232) cable. For this chassis, the ComPair interface box and the TV communicate via a bi-directional service cable via the service connector(s). The ComPair fault finding program is able to determine the problem of the defective television. ComPair can gather diagnostic information in two ways: · Automatically (by communicating with the television): ComPair can automatically read out the contents of the entire error buffer. Diagnosis is done on I2C/UART level. ComPair can access the I2C/UART bus of the television. ComPair can send and receive I2C/UART commands to
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Service Modes, Error Codes, and Fault Finding
When multiple errors occur (errors occurred within a short time span), there is a high probability that there is some relation between them. Basically there are three kinds of errors: · Errors detected by the Stand-by Processor. These errors will always lead to protection and an automatic start of the blinking LED for the concerned error (see paragraph "The Blinking LED Procedure"). In these cases SDM can be used to start up (see chapter "Stepwise Start-up"). · Errors detected by VIPER that lead to protection. In this case the TV will go to protection and the front LED will blink at 3 Hz. Further diagnosis via service modes is not possible here (see also paragraph "Error Codes" -> "Error Buffer" > "Extra Info"). · Errors detected by VIPER that do not lead to protection. In this case the error can be read out via ComPair, via blinking LED method, or in case you have picture, via SAM. 5.5.2 How to Read the Error Buffer Use one of the following methods: · On screen via the SAM (only if you have a picture). E.g.: 00 00 00 00 00: No errors detected 06 00 00 00 00: Error code 6 is the last and only detected error 09 06 00 00 00: Error code 6 was first detected and error code 9 is the last detected error · Via the blinking LED procedure (when you have no picture). See next paragraph. · Via ComPair. 5.5.3 How to Clear the Error Buffer Use one of the following methods: · By activation of the "RESET ERROR BUFFER" command in the SAM menu. · With a normal RC, key in sequence "MUTE" followed by "062599" and "OK". · If the content of the error buffer has not changed for 50+ hours, it resets automatically. 5.5.4 Error Buffer In case of non-intermittent faults, clear the error buffer before you begin the repair (before clearing the buffer, write down the content, as this history can give you significant information). This to ensure that old error codes are no longer present. If possible, check the entire contents of the error buffer. In some situations, an error code is only the result of another error code and not the actual cause (e.g., a fault in the protection detection circuitry can also lead to a protection). There are several mechanisms of error detection: · Via error bits in the status registers of ICs. · Via polling on I/O pins going to the stand-by processor. · Via sensing of analogue values on the stand-by processor. · Via a "not acknowledge" of an I2C communication Take notice that some errors need more than 90 seconds before they start blinking. So in case of problems wait 2 minutes from start-up onwards, and then check if the front LED is blinking.
the microcontroller of the television. In this way, it is possible for ComPair to communicate (read and write) to devices on the I2C/UART buses of the TV-set. · Manually (by asking questions to you): Automatic diagnosis is only possible if the microcontroller of the television is working correctly and only to a certain extent. When this is not the case, ComPair will guide you through the fault finding tree by asking you questions (e.g. Does the screen give a picture? Click on the correct answer: YES / NO) and showing you examples (e.g. Measure test-point I7 and click on the correct oscillogram you see on the oscilloscope). You can answer by clicking on a link (e.g. text or a waveform picture) that will bring you to the next step in the fault finding process. By a combination of automatic diagnostics and an interactive question / answer procedure, ComPair will enable you to find most problems in a fast and effective way. How to Connect This is described in the chassis fault finding database in ComPair. Caution: It is compulsory to connect the TV to the PC as shown in the picture below (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs will be blown!
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-7 ComPair interface connection How to Order ComPair order codes: · ComPair Software: ST4191. · ComPair Interface Box: 4822 727 21631. · AC Adapter: T405-ND. · ComPair Quick Start Guide: ST4190. · ComPair interface extension cable: 3139 131 03791. · ComPair UART interface cable: 3122 785 90630. Note: If you encounter any problems, contact your local support desk.
5.5
5.5.1
Error Codes
Introduction The error code buffer contains all detected errors since the last time the buffer was erased. The buffer is written from left to right, new errors are logged at the left side, and all other errors shift one position to the right. When an error has occurred, the error is added to the list of errors, provided the list is not full or the error is a protection error. When an error occurs and the error buffer is full, then the new error is not added, and the error buffer stays intact (history is maintained), except when the error is a protection error. To prevent that an occasional error stays in the list forever, the error is removed from the list after 50+ operation hours.
Service Modes, Error Codes, and Fault Finding
Table 5-2 Error code overview
Error Description 3 5 6 8 11 12 14 17 18 25 27 29 32 34 37 43 44 53 65 67 71 72 73 74 I2C3 VIPER does not boot (hardware failure) 5V supply 1.2V DC/DC 3.3V DC/DC 12V supply Class D amplifiers MPIF1 Audio Supply (ASUP) MPIF1 ref freq (ROK) Supply fault Phoenix AVIP1 MPIF1 Tuner1 Channel decoder Hi Rate Front End Main NVM VIPER - HW peripheral problem GdeInitCommunicationFailure System Integrity Failure Overheating Fan speed too low Lamp broken MCU initialisation failure Error/Prot Detected by P P P P P P P E E P E E E E E E P P P E E E E E Stby µP Stby µP Stby µP Stby µP Stby µP Stby µP Stby µP VIPER VIPER Stby µP VIPER VIPER VIPER VIPER VIPER VIPER VIPER Stby µP PTV GDE / HCS PTV GDE CDE / HCS CDE / HCS CDE / HCS CDE / HCS MTV512 MTV512 MTV512 MTV512 HCS CDE CDE CDE CDE NXT2003 TDA8751 M24C32 PNX8550 PNX2015B PNX3000 KN10241C KN10241C KN10241C Device n.a. PNX8550 n.a. n.a. n.a. n.a. Class D Supply IF I/O IF I/O DC/DC Supply HD subsystem Analog Front End 1 Tuner 1 Channel decoder 1 HDMI NVM Control Control Defective module I2C3_blocked Result
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Protection + Error blinking Protection + Error blinking Protection + Error blinking Protection + Error blinking Protection + Error blinking Protection + Error blinking Protection + Error blinking Error logged Error 32, 31, 18, 17, and 16 logged Protection + Error blinking No error logged Errors 32, 18, 17, and 16 logged No picture, error logged Errors 34 and 37 logged Error logged Error logged + Error blinking 3 times Protection + Error blinking Protection + Error blinking Error logged Lamp off, right red LED on, Errors 67 and 71 logged Lamp off, left + right red LED on, Errors 67 and 72 logged Lamp off, left red LED on, Errors 67 and 73 logged
AV input processor 1 Errors 29, 32, 31, 18, 17, and 16 logged
Extra Info · Error 1 (I2C bus 1 blocked). When this error occurs, the TV will go to protection and the front LED will blink at 3 Hz. Now you can partially restart the TV via the SDM shortcut pins on the SSB. Depending on the software version it is possible that no further diagnose (error code read-out) is possible. With the knowledge that only errors 1, 2, 4, and 63 result in a 3 Hz blinking LED, the range of possible defects is limited. · Error 2 (I2C bus 2 blocked). When this error occurs, the TV will go to protection and the front LED will blink at 3 Hz. Now you can partially restart the TV via the SDM shortcut pins on the SSB. Due to hardware restriction (I2C bus 2 is the fast I2C bus) it will be impossible to start up the VIPER and therefore it is also impossible to read out the error codes via ComPair or via the blinking LED method. With the knowledge that only errors 1, 2, 4, and 63 result in a 3 Hz blinking LED, the range of possible defects is limited. When you have restarted the TV via the SDM shortcut pins, and then pressed "CH+" on your remote control, the TV will go to protection again, and the front LED blink at 3 Hz again. This could be an indication that the problem is related to error 2. · Error 3 (I2C bus 3 blocked). There are only three devices on I2C bus 3: VIPER, Stand-by Processor, and NVM. The Stand-by Processor is the detection device of this error, so this error will only occur if the VIPER or the NVM is blocking the bus. This error will also be logged when the NVM gives no acknowledge on the I2C bus (see error 44). Note that if the 12 V supply is missing (connector 1M46 on the SSB), the DC/DC supply on the SSB will not work. Therefore the VIPER will not get supplies and could block I2C bus 3. So, a missing 12 V can also lead to an error 3. · Error 4 (I2C bus 4 blocked). Same remark as with error 1. · Error 5 (I2C bus 5 blocked). This error will point to a severe hardware problem around the VIPER (supplies not OK, VIPER completely dead, I2C link between VIPER and Stand-by Processor broken, etc...). · Error 7 (8.6 V error). Except a physical problem with the 8.6 V itself, it is also possible that there is something wrong with the Audio DC Protection: see paragraph "Hardware Protections" for this. · Error 12 (12 V error). Except a physical problem with the 12 V itself, it is also possible that there is something wrong with the Audio DC Protection: see paragraph "Hardware Protections" for this.
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Error 14 (Audio supply). This error is triggered in case of too low voltage of the audio supplies and therefore a drop of the audio supply voltage of below approx. 9 V per supply rail (or lower than 18 V rail to rail). Also a DC voltage of higher than 1 V DC on the speakers will lead to protection and error 14 blinking. For LCD sets this circuit can be found on schematic SA3, for PDP sets this can be found on schematic C. It should be noted that for 26-inch models there is only a supply link between the amplifiers and the stand-by µC whereas in all other models this link is implemented by Audio-Prot line pin 7 on 1 M02. Error 29 (AVIP1). This error will probably generate extra errors. You will probably also see errors 32 (MPIF) and error 31 (AVIP 2). Error 29 and 31 will always be logged together due to the fact that both AVIPs are inside the PNX2015 and are on the same I2C bus. In this case start looking for the cause around AVIP (part of PNX2015). Error 31 (AVIP2). See info on error 29. Error 34 (Tuner 1). When this error is logged, it is not sure that there is s