Text preview for : FTP2.4L.pdf part of Philips FTP2.0L AA 108 page service manual for Philips 42 & 50 inch color SDI plasma panels: 3122 785 14990, chassis FTP2.0L AA (published by EL 0568 TV Service, Netherlands)
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Colour television
Chassis
FTP2.4L
AA Service Manual SDI plasma panels: 3122 785 14990
E_14650_000.eps 160604
Contents
Page
Contents
Page
66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 79 81 83 85
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 5 3. Directions for Use 6 4. Mechanical Instructions 7 5. Service Modes, Error Codes, and Fault Finding 12 6. Block Diagrams, Testpoint Overviews, and Waveforms Wiring Diagram 23 Block Diagram Video 24 Block Diagram Audio 25 I2C Overview 26 Supply Lines Overview 27 7. Circuit Diagrams and PWB Layouts Diagram Ambi Light (One Panel) (AL) 28 Ambi Light (Two Panels) (AL) 30 SSB: IF, I/O Video Processing (B2) 32 SSB: PICNIC (B3A) 33 SSB: (FEM) Falconic Embedded Memory (B3B) 34 SSB: Eagle (B3C) 35 SSB: Columbus (B3D) 36 SSB: FBX Supply (B3E) 37 SSB: HOP (B4) 38 SSB: OTC-Flash (B5A) 39 SSB: Backlight Control (B5B) 40 SSB: OTC-Flash (B5C) 40 SSB: Audio Demodulator (B6A) 41 SSB: Dolby Digital Decoder (B6B) 42 SSB: Dolby Pro Logic Processor (B6C) 43 SSB: Audio Delay (B6D) 44 SSB: DC/DC Converter (B12) 45 SSB: Main Tuner (B13A) 46 SSB: Sub Tuner (B13B) 47 SSB: DC/DC Converter (B13C) 48
PWB 29 31 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77 66-77
8. 9. 10. 11.
SSB: I/O 1 (B14A) 49 SSB: I/O 2 Connections (B14B) 50 SSB: I/O 3 Switch (B14C) 51 SSB: I/O 4 Audio (B14D) 52 SSB: I/O 5 (B14E) 53 SSB: I/O 6 Digital Input (B14F) 54 SSB: I/O 7 (B14G) 55 SSB: PIP HIP (B15A) 56 SSB: PIP Switch (B15B) 57 SSB: PIP Muppet (B15C) 58 SSB: HDI A/D Converter (B19A) 59 SSB: EPLD Control (B19B) 60 SSB: EPLD OSD (B19C) 61 SSB: EPLD I/O (B19D) 62 SSB: Backlight Control (B19E) 63 SSB: Screen Interface (B20) 64 SSB: Connection (B21) 65 PDP Audio Amplifier (C) 78 Side I/O Panel (D) 80 Top Control Panel (E) 82 LED and Switch Panel (J) 84 Alignments 87 Circuit Descriptions, Abbreviation List, and IC Data Sheets 93 Spare Parts List 97 Revision List 108
© Copyright 2005 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 EL 0568 TV Service
Printed in The Netherlands
Subject to modification
EN 3122 785 15480
EN 2
1.
FTP2.4L AA
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Index of this chapter: 1.1 Technical Specifications 1.2 Connections 1.3 Chassis Overview Notes: · Figures can deviate due to the different set executions. · Specifications are indicative (subject to change).
1.2
Connections
Note: The following connector colour 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 I/O
1.1
1.1.1
Technical Specifications
Vision Display type Screen size Resolution (HxV pixels) Contrast ratio Light output (cd/m2) Viewing angle (HxV degrees) Tuning system Colour systems Supported computer formats : : : : : : : : : : : : : : : : : : : : : : : : : : Plasma, 16:9 42" (106 cm), SDI 50" (127 cm), SDI 42" - 1024x768p 50" - 1366x768p 3000:1 (42") 1000:1 (50") 42" - 1000 50" - 900 160 x 160 PLL PAL M/N NTSC M/N 640x480 800x600 1024x768 640x480i - 1fH 720x576i - 1fH 640x480p - 2fH 720x576p - 2fH 1920x1080i - 2fH 1920x1152i - 2fH 1280x720p - 3fH NTSC, PAL B/G 100 presets UHF, VHF, S, H-band
SIDE I/O
R AUDIO L CVBS S-video
E_14620_022.eps 290705
Figure 1-1 Side I/O connections Headphone (Output) - Headphone 32 - 600 ohm / 10 mW Cinch: Video CVBS - In, Audio - In Rd - Audio R 0.5 VRMS / 10 kohm Wh - Audio L 0.5 VRMS / 10 kohm Ye - Video CVBS 1 VPP / 75 ohm 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 1.2.2 Rear Connections
CENTRE IN AUDIO OUT
ot
Supported video formats
jq jq jq
AV (playback only) Presets/channels Tuner bands 1.1.2 Sound
H H j j
AUDIO Pr/R Y/G V S-VIDEO AUDIO Pr Y
SERVICE AUDIO HDMI
Sound systems Maximum power (WRMS) 1.1.3 Miscellaneous Power supply: - Mains voltage (VAC) - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity Power consumption - Normal operation (W) - Stand-by (W) Dimensions (WxHxD cm)
: AV stereo, : BTSC : 2 x 15
MAINS (PLASMA SETS)
AUDIO
R L
R L
R L
R L
R L
19 18
1 2
AERIAL IN
SUBW OUT
Pb/B CVBS H S-VIDEO
Pb VIDEO
MAINS (LCD SETS)
AV2 IN
AV1 IN
: 220 - 240 : 50 / 60
MONITOR OUT
HDMI IN
E_14620_144.eps 140704
Figure 1-2 Rear connections : +5 to +40 : 90% R.H. Aerial - In - IEC-type (/79, 98) Coax, 75 ohm - F-type (/93) Coax, 75 ohm AV2 Cinch: Video CVBS/YPbPr/RGB - In, Audio - In Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm Bu - Video Pb/B 0.7 VPP / 75 ohm Rd - Video Pr/R 0.7 VPP / 75 ohm Ye - Video CVBS 1 VPP / 75 ohm Ge - Video Y/G 0.7 VPP / 75 ohm Bk - Sync H 0-5V Bk - Sync V 0-5V
D D
: 42" - 257 : 50" - 375 : <2 : 111x78x10 (42") : 128x88x10 (50") : 42 (42"), 58 (50")
Weight (kg)
jq jq jq jq jq jq jq jq
Technical Specifications, Connections, and Chassis Overview
AV2 S-Video: Y/C - In 1 - Ground Y 2 - Ground C 3 - Video Y 4 - Video C AV1 S-Video: Y/C - In 1 - Ground Y 2 - Ground C 3 - Video Y 4 - Video C H H j j
FTP2.4L AA
1.
EN 3
Gnd Gnd 1 VPP / 75 ohm 0.3 VPP / 75 ohm
Gnd Gnd 1 VPP / 75 ohm 0.3 VPP / 75 ohm
H H j j
AV1 Cinch: Video CVBS/YPbPr - In, Audio - In Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm Ge - Video Y 0.7 VPP / 75 ohm Monitor out Ye - Video CVBS Wh - Audio L Rd - Audio R
jq jq jq jq jq
1 VPP / 75 ohm 0.5 VRMS / 10 kohm 0.5 VRMS / 10 kohm
kq kq kq
Cinch: Sub woofer - Out, Centre - In Bu - Centre 0.5 VRMS / 10 kohm Bk - Sub woofer 0.5 VRMS / 10 kohm Cinch: Audio - Out Rd - Audio - R Wh - Audio - L
jq kq
0.5 VRMS / 10 kohm 0.5 VRMS / 10 kohm
kq kq
Cinch: HDMI Audio - In Rd - Audio - R 0.5 VRMS / 10 kohm Wh - Audio - L 0.5 VRMS / 10 kohm Service connector (ComPair) 1 - SDA-S I2C Data (0 - 5 V) 2 - SCL-S I2C Clock (0 - 5 V) 3 - Ground Gnd HDMI: Digital Video, Digital Audio - In
19 18 1 2
E_06532_017.eps 250505
jq jq
jk j H
Figure 1-3 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
DDC clock DDC data Gnd Hot Plug Detect Gnd
EN 4 1.3
1.
FTP2.4L AA
Technical Specifications, Connections, and Chassis Overview
Chassis Overview
AUDIO AMPL. PANEL
C
AL
AMBI LIGHT PANEL AMBI LIGHT PANEL
AL
E
CONTROL PANEL SIDE I/O PANEL
D
B
SMALL SIGNAL BOARD
LED PANEL
J
F_15470_001.eps 160805
Figure 1-4 PWB locations
Safety Instructions, Warnings, and Notes
FTP2.4L AA
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. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the "double-D symbol", are trademarks of Dolby Laboratories.
2.1
Safety Instructions
Safety regulations require the following during a repair: · Connect the TV 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 TV 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 TV. The reading should be between 4.5 Mohm and 12 Mohm. 4. Switch "off" the TV, 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.
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 TV 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 TV, 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
3.
FTP2.4L AA
Directions for Use
· 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 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.
Device Replacement The last step in the repair process is to solder the new component on the board. Ideally, the (LF)BGA should be 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 "Workshop Information". 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).
·
·
·
·
·
E_06532_024.eps 230205
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
2.3.5
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 the mixing of two alloys). Caution: For BGA-ICs, you must use the correct temperature profile, 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 "Workshop information". For additional questions please contact your local repair help desk. 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.
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.
·
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com
Mechanical Instructions
FTP2.4L AA
4.
EN 7
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Service Position 4.3 Assy/PWB Removal 4.4 Plasma Panel / Glass Plate (Dis)Assembly 4.5 Set Re-assembly Notes: · Figures below can deviate slightly from the actual situation, due to the different set executions. · Be aware that the internal (gold coloured) frame is made of conducting material. So, be cautious during electrical measurements!
4.1
4.1.1
Cable Dressing
Chassis
F_15470_004.eps 160805
Figure 4-1 Chassis cable dressing
4.2
Service Position
For easy servicing of this set, there are a few possibilities created: · The buffers from the packaging. · Foam bars (created for Service). · Aluminium service stands (created for Service). 4.2.2
By placing a mirror under the TV, you can monitor the screen. Aluminium Stands
4.2.1
Foam Bars
E_06532_019.eps 170504
Figure 4-3 Aluminium stands (MkI)
E_06532_018.eps 170504
Figure 4-2 Foam bars The foam bars (order code 3122 785 90580 for two pieces) can be used for all types and sizes of Flat TVs. By laying the TV face down on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments.
The new (MkII) aluminium stands (order code 3122 785 90690) can also be used to do measurements, alignments, and duration tests. The stands can be (dis)mounted quick and easy by means of sliding them in/out the "mushrooms". Important: For (older) FTV sets without these "mushrooms", it is obligatory to use the provided screws, otherwise it is possible to damage the monitor inside!.
EN 8 4.3
4.3.1
4.
FTP2.4L AA
Mechanical Instructions
4.3.3 Ambient Light Panel(s)
Assy/PWB Removal
Metal Back Plate Caution: Disconnect the mains power cord before you remove the metal back plate.
1 3 1 1
1
1 1 2 1
F_15460_071.eps 130405
Figure 4-6 Ambient light inverter (left side)
F_15460_074.eps 140405
Figure 4-4 Metal back plate 1. Place the TV set upside down on a table top, using the foam bars (see part "Foam Bars"). Caution: do not put pressure on the display, but let the monitor lean on the speakers or the Front cover. 2. Remove all T10 parker screws [1] from the top, centre, and left and right sides of the back plate. 3. Remove all T10 tapping screws [2] from the bottom of the back plate. 4. Remove the four "mushrooms" [3] from the back plate. 5. Lift the back plate from the TV. Make sure that wires and flat foils are not damaged during the back plate removal. 4.3.2 Rear Cover
1
F_15460_072.eps 130405
Figure 4-7 Ambient light inverter (right side) Later models are equipped with two Ambient Light Inverter panels. For the earlier models with one panel, reference is made to the FTP2.2x Service Manual for the correct mechanical instructions. 1. Disconnect all cables from the Ambient Light Inverter panel. 2. Remove all mounting screws [1] from the Ambient Light Inverter panel. 3. Take out the Ambient Light Inverter panel. 4.3.4 Power Supply Panel 1. Disconnect all cables from the Power Supply panel. 2. Remove all mounting screws from the Power Supply panel. 3. Take out the Power Supply panel.
F_15460_073.eps 140405
2 2 2
1 2
Figure 4-5 Rear cover 1. Disconnect all connectors [1] at both Ambient Light Inverters that go to the Ambient Lights in the rear cover. 2. Remove all T10 tapping screws [2] around the edges of the rear cover. 3. Lift the rear cover from the TV.
Mechanical Instructions
4.3.5 Audio Panel 4.3.6 Side I/O Panel
FTP2.4L AA
4.
EN 9
1. Disconnect the cable from the Side I/O panel. 2. Release the clamps and take out the Side I/O panel from its bracket. 4.3.7 Control Panel 1. Remove the mounting screws from the Control panel bracket. 2. Disconnect the cable. 3. Release the clamps and take out the Control panel. 4.3.8 LED Panel 1. Disconnect all cables from the LED panel. 2. Remove the mounting screws from the LED panel. 3. Take out the LED panel.
F_15460_070.eps 140405
1
4.3.9
Speakers 1. Remove all mounting screws. 2. After removing the cover plate (seven screws), you can access the speakers. 3. Be sure that the foam that makes the unit airtight is not damaged.
Figure 4-8 Audio panel 1. Disconnect all cables from the Audio panel. 2. Remove all mounting screws [1] from the Audio panel. 3. Take out the Audio panel.
4.3.10 SSB
2b
1
9
2a 2
8
For PDP
F_15460_069.eps 140405
F_15490_027.eps 240605
Figure 4-9 SSB top shielding Figure 4-10 SSB removal
F_15500_046.eps 020805
5
5
Figure 4-11 Connector plate 1. 2. 3. 4. Remove the LVDS locking bracket [1]. Remove all shielding fixing screws [2]. Disconnect the grounding wire from the mains filter [2a]. Slide, and lift the shielding at the top. The panel hinges at the connector side. Caution: do not damage the EMC shielding foam while you remove the shielding. 5. 6. 7. 8. Remove the connector mounting screws [5]. Disconnect the LVDS cable, and all other cables. Remove the mounting screw [8] from the SSB. Bend the brackets [9] away (may require some force), lift the SSB, and take it out.
EN 10
4.
FTP2.4L AA
Mechanical Instructions 4.4 Plasma Panel / Glass Plate (Dis)Assembly
Important: Be sure to work in a dust free environment during the following activities. In addition, the use of (fabric) hand gloves is advised.
3
4.3.11 Ambi Light Lamp Unit
4.4.1
Plasma Display Panel
2
4 4 4 4 1 4 4 4 4
1 3
4 4 4
4 4 4
F_15460_066.eps 120405
3 4 4 4 2 4
E_14650_009.eps 170604
4
Figure 4-12 Ambient light (partly shown) Ambient lights are located in the rear cover of the TV. 1. Unplug the connectors. 2. Remove all mounting Ambient Light screws [1]. 3. Move the Ambient light unit to the side [3] and take out the unit.
Figure 4-13 Plasma panel removal
5
4
2
E_14650_010.eps 170604
Figure 4-14 Hidden screw Disassembly 1. Place the TV set face down on the foam bars. Place the bars at the edges of the TV so they will support the front frame, and not only the glass plate! 2. Remove the four T25 screws [1] that hold the plasma panel. Note: In some models, the upper left T25 screw is hidden under the Ambient Light Inverter panel. Remove this panel to get access to it. 3. Remove the fifth T25 screw that is located near the SSB. Note: In some models, this fifth screw is hidden under the SSB. To get access, you have to remove the four T10 screws [2] that mount the "SSB connector plate" to the frame. Then, lift the complete SSB unit away, so you can remove the hidden screw [4]. 4. Remove all T10 tapping screws around the frame [4]. 5. Next step is to unplug the following connectors (see also Wiring Diagram in chapter 6): Mains plug on PSU. Audio panel supply plug on PSU. LVDS plug on SSB (first remove the fixation clamp). Ambilight supply plug on PSU.
Mechanical Instructions
SSB supply plugs on PSU. Side/Top Control plug on LED panel. Side I/O plug on LED panel. SSB grounding wire. Loosen all necessary cables from their clamps. 6. Lift the plastic frame together with all PWBs from the PDP panel. 7. Now the PDP (incl. the PSU panel) can be removed. Lift the panel at the two metal bars from the glass plate. Assembly In order to centre the (new) plasma panel correctly w.r.t. the glass plate, do the following: 1. Place the (new) plasma panel face down on foam bars. 2. Also, place the front assy (front panel with glass plate) on two other foam bars. 3. Mount the plastic frame on the plasma panel. 4. Lift this module (frame and PDP) and place it onto the front assy. 5. Now follow the above described disassembly process in reverse order. 4.4.2 Glass Plate 1. Follow the above-described PDP disassembly instructions. 2. After removing the PDP, the glass plate is accessible.
FTP2.4L AA
4.
EN 11
4.5
Set Re-assembly
To re-assemble the whole set, execute all processes in reverse order. Note: While re-assembling the TV, make sure that: · All cables are placed and connected in their original position (see figure "Cable dressing"). · EMC Shielding foam is intact. · LVDS connector (SSB) is secured with plastic clamp. · All "grounding" wires are re-connected: Between metal speaker grid and frame (near the LED panel). Between the Mains Filter and the SSB Top Shielding (see figure SSB Top shielding item 2a). Between the SSB Top Shielding and the PSU (see figure SSB Top shielding item 2b).
F_15460_065.eps 120405
Figure 4-15 Grounding wire of metal speaker grid
EN 12
5.
FTP2.4L AA
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 Problems And Solving Tips (Related To CSM) 5.4 Service Tools 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Protections 5.8 Repair Tips 5.9 Software Downloading Smart modes. Auto store of personal presets. Auto user menu time-out.
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.
5.1
Test Points
The chassis is equipped with test points printed on the circuit board assemblies. Perform measurements under the following conditions: · Service Default Mode. · Video: colour bar signal. · Audio: 3 kHz left, 1 kHz right.
SDM
SAM
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 Philips Customer Care Centre (P3C) 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: a Pentium processor, Windows 95/ 98, and a CD-ROM drive (see also paragraph "ComPair"). Remark: The silk screen printing is not correct for the SAM/ SDM indication. For the correct location of these pins, see figure "Service pads".
SW UPGRADE MODE
NORMAL TV MODE
E_14620_151.eps 290704
Figure 5-1 Service pads · Short for a moment the two solder pads on the SSB, with the indication "SDM" (see figure "Service pads"). Activation can be performed in all modes, except when the TV has a problem with the main microprocessor. Caution: If the SDM is activated via the pins, all the software-controlled protections are de-activated. Use the DST-emulation feature of ComPair. Use the "DEFAULT" button on the Dealer Service Tool (RC7150).
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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. · To start the blinking LED procedure. Specifications Table 5-1 SDM default settings Default system PAL B/G NTSC M How To Navigate When you press the "MENU" button on the RC transmitter, the TV 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 TV to STANDBY via the RC-transmitter. · Press the "EXIT" button on the DST. · Via a standard customer RC-transmitter: key in "00"sequence. 5.2.2 Service Alignment Mode (SAM) 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. Specifications · Operation hours counter. · Software version. · Option settings. · Error buffer reading and erasing. · Software alignments.
Region Europe, AP-PAL/Multi NAFTA, AP-NTSC, LATAM · · ·
Freq. (MHz) 475.25 61.25 (ch. 3)
All picture settings at 50% (brightness, colour, contrast). All sound settings at 50%, except volume at 25%. All service-unfriendly modes (if present) are disabled, like: (Sleep) timer. Child/parental lock. Blue mute. Automatic volume limiter (AVL). Auto switch-off (when no video signal was received for 10 minutes). Skip/blank of non-favourite pre-sets.
Service Modes, Error Codes, and Fault Finding
How To Activate SAM Use one of the following methods: · Via a standard RC transmitter: key in the code "062596" directly followed by the "OSD [i+]" button. After activating SAM with this method a service warning will appear on the screen, you can continue by pressing any digit key on the RC. · Short for a moment the two solder pads on the SSB with the indication "SAM" (see figure "Service pads"). Depending on the software version, it is possible that a service warning will appear. You can continue by pressing any digit key on the RC. · Use the DST-emulation feature of ComPair. · Press the ALIGN button on the DST while the TV is in the normal operation After activating this mode, "SAM" will appear in the upper right corner of the screen. Contents Of SAM: · Operation Hours. Displays the accumulated total of operation hours (not the stand-by hours). · Hardware Info. ROM Version. Displays the date of the software and the software version of the ROM Ex.: TX24EU_1.0_01234 = AAAABB_X.Y_NNNNN. · AAAA= the chassis name. · BB= the region: EU= Europe, AP= Asia Pacific PAL/Multi, AN= Asia Pacific NTSC, US= USA, LT= LATAM. · X.Y= 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). · NNNNN= last five digits of 12nc code software. FBX Version. Displays the software version of the FBX SW VERSION EPLD. Displays the software version of the EPLD. · 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 the "OK" button, the error buffer is reset. · Alignments. This will activate the "ALIGNMENTS" submenu. · Dealer Options. Extra features for the dealers. · Service Options. Extra features for Service. · Initialise NVM. When an NVM was corrupted (or replaced) in the former EM3 chassis, the microprocessor replaces the content with default data (to assure that the TV can operate). However, all pre-sets 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 recognises a corrupted NVM, the "initialise 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 initialising. This will give the Philips Service department an extra possibility for diagnosis (e.g. when Development asks for this). Initialise the NVM (same as in the past, however now it happens conscious). · Store. All options and alignments are stored when pressing the "OK"-button · Functional Test. All devices are tested via the "OK" button. Eventual errors are displayed in the error buffer.
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The error buffer is not erased, the content returns when this test is terminated. Daily Menus. With the "OK" button, you can go to the normal user menu. SAM is still active in the background. With the "MENU" button, you return from the user menu to SAM menu. This feature can be helpful to quickly change some settings in the user menu. SW Maintenance. · Upgrade. More info see paragraph Software downloading. · Events. Not useful for service purposes. In case of specific software problems, the development department can ask for this info. · BDM Info. Broadcast Debug Menu info. The purpose of this menu is to debug the broadcast, not the TV. The menu gives an overview of what is received on the current preset.
Following items are displayed:
Presetnr: Presetname:
------
CNI NVM: ---CNI F1: ---CNI F2: ---CNI VPS: ---Morning Prog: --Name 8/30 F1: ----Name 8/30 F2: ----Name TXT: ----Signal Strength:--EPG Service: ---
UTC: LTO: Time: Date: Time TXT: Time 8/30 F1: Date 8/30 F1: LTO 8/30 F1: WSS WSS WSS WSS G1: G2: G3: G4:
--:--:---:--:---:--:---/--/-----:--:---:--:---/--/-----:--:-----------E_14620_050.eps 170504
Figure 5-2 Broadcast debug menu overview Table 5-2 Broadcast debug menu explanation
Item Presetnr Presetname CNI NVM CNI F1 CNI F2 CNI VPS Morning Prog Name 8/30 F1 Name 8/30 F2 Name TXT EPG Service UTC LTO Source Set Set Description Preset number of the current selected preset. Preset name of the current selected preset.
Broadcaster CNI number stored in NVM for the current preset. Broadcaster CNI number from transmitted Packet 8/30 Format 1. Broadcaster CNI number from transmitted Packet 8/30 Format 2. Broadcaster CNI number from transmitted VPS line. Broadcaster "ARD" or "ZDF" according to dedicated bit in 8/30 Format 1. Broadcaster Name extracted from status message of 8/30 Format 1. Broadcaster Name extracted from status message of 8/30 Format 2. Broadcaster Name extracted from TXT header. Noise figure measured for selected preset. EPG Service stored in NVM for current preset displayed as "TXT", "MCP", "SCP", "OCP". UTC (Universal Time Code formerly known as Greenwich Mean Time) used in the TV. LTO (Local Time Offset) used in the TV. Used by EPG for all NextView displays. (= Time TXT header - Time 8/30 F1) Current time running in the TV. Was extracted at start-up, then maintained by software. Current date running in the TV. Was extracted at start-up, then maintained by software. Set Set Set
Signal Strength FBX
Time Date Time TXT Time 8/30 F1 Date 8/30 F1 LTO 8/30 F1 WSS G1 WSS G2 WSS G3 WSS G4
Set Set
Broadcaster TXT header time from the selected preset. Broadcaster UTC time from 8/30 Format 1. Broadcaster Date from 8/30 Format 1. Broadcaster LTO from 8/30 Format 1. Broadcaster WSS Group 1 (Aspect Ratio) bits 0 1 2 3 Broadcaster WSS Group 2 (Enhanced Services) bits 4 5 6 7 Broadcaster WSS Group 3 (Subtitles) bits 8 9 10 Broadcaster WSS Group 4 (Reserved) bits 11 12 13
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Service Modes, Error Codes, and Fault Finding
minimum) to 100 (brightness is maximum). Brightness values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "BRIGHTNESS". Contrast. Gives the last status of the contrast as set by the customer. The value can vary from 0 (contrast is minimum) to 100 (contrast is maximum). Contrast values can be changed via "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "CONTRAST". Colour. Gives the last status of the colour saturation, as set by the customer. The value can vary from 0 (colour is minimum) to 100 (colour is maximum). Colour values can be changed via "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "COLOUR". Hue. Only relevant for NTSC-signals (e.g. some NTSCDVD-discs).
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. · With the "CURSOR LEFT/RIGHT" keys, it is possible to: (De) activate the selected menu item. Change the value of the selected menu item. Activate the selected sub-menu. How To Exit SAM Use one of the following methods: · Press the "MENU" button on the RC-transmitter, or · Switch the TV to STANDBY via the RC-transmitter, or · Press the "EXIT" button on the DST. 5.2.3 Customer Service Mode (CSM) Purpose When a customer is having problems with his TV-set, he can call his dealer. The service technician can than ask the customer to activate the CSM, in order to identify the status of the TV. 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 Use the following method: 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 CUSTOMER SERVICE MENU 1 · Software Version (example: TX24EU_1.0_01234). Displays the built-in software version. In case of field problems related to software, software can be upgraded (for more details, see paragraph Software downloading). You will find details of the software versions in the chapter "Software Survey" of the "Product Survey - Colour Television" publication. This publication is generated four times a year. · Feature Box. The 12NC-number of the built-in Feature Box software. · Set Type. This information is very helpful for a help desk/ 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. · 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 left most position. Each error code is displayed as a 3-digit number. When less than 10 errors occur, the rest of the buffer is empty (000). 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. · Volume. Gives the last status of the volume as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). Volume values can be changed via the volume key on the RC-transmitter. · Brightness. Gives the last status of the brightness as set by the customer. The value can vary from 0 (brightness is
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CUSTOMER SERVICE MENU 2 · Sharpness. Gives the sharpness value. The value can vary from 0 (sharpness is minimum) to 7 (sharpness is maximum). In case of bad antenna signals, a too high value of the sharpness can result in a noisy picture. Sharpness values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RC-transmitter after pressing the "MENU" button and selecting "PICTURE" and "SHARPNESS". · Headphone Volume. Gives the last status of the head phone volume, as set by the customer. The value can vary from 0 (volume is minimum) to 100 (volume is maximum). Head phone volume values can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys on the RCtransmitter after pressing the "MENU" button and selecting "SOUND" and "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 Signalling bit. If a Dolby transmission is received without a Dolby Signalling bit, this indicator will show "OFF" even though a Dolby transmission is received. · Surround Mode. Indicates the by the customer selected surround mode (or automatically chosen mode). Possible values are "OFF", "INCREDIBLE SURROUND" OR "DOLBY VIRTUAL". These settings can be influenced after pressing the "MENU" button and selecting "SOUND" and SURROUND MODE". It can also have been selected automatically by signalling bits (internal software). · Tuner Frequency. Indicates the frequency the selected transmitter is tuned to. The tuner frequency can be changed via the "CURSOR LEFT" and "CURSOR RIGHT" keys for fine tune after opening the installation menu and selecting "INSTALL" and "MANUAL INSTALL". · Digital Option. Gives the selected digital mode, "PROGRESSIVE SCAN", "MOVIE PLUS" or "PIXEL PLUS". Change via "MENU", "PICTURE", "DIGITAL OPTIONS". · Centre Trim. Not applicable for this set. · TV System. Gives information about the video system of the selected transmitter. BG: PAL BG signal received. DK: PAL DK signal received. I: PAL I signal received. L/La: SECAM L/La signals received. M: NTSC M signal received with video carrier on 38.9 MHz. CUSTOMER SERVICE MENU 3 · Balance. Indicates the balance settings, between "-50" and "+50". Change via "MENU", "SOUND", and "BALANCE". Not applicable for Dolby Pro Logic sets. · Centre Mode. Not applicable for this TV.
Service Modes, Error Codes, and Fault Finding
· DNR. Gives the selected DNR setting (Dynamic Noise Reduction), "OFF", "MINIMUM", "MEDIUM", or "MAXIMUM". Change via "MENU", "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". Source. Indicates which source is used and the video/ audio signal quality of the selected source. Example: Tuner, Video/NICAM) Source: "TUNER", "EXT1", "EXT2", "EXT3", "EXT4", "SIDE", "AV1", "AV2", "AV3" or "AV4". Video signal quality: "VIDEO", "S-VIDEO", "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 audio system of the selected transmitter: "ANALOGUE MONO", "ANALOGUE STEREO", "PCM 2/0", "DD 1/0", "DD 2/0 LtRt", "DD 2/0 L0R0", "DD 2/1", "DD 2/2", "DD 3/0", "DD 3/ 1", "DD 3/2", "DD 1+1", "MPEG 1/0", "MPEG 2/0", "MPEG 2/0 LtRt", "MPEG 2/1", "MPEG 2/2", "MPEG 3/0", "MPEG 3/1", "MPEG 3/2", "MPEG 1+1" or "MPEG 2+2". Tuned Bit. Gives information about the tuning method of the stored pre-set. If a channel is found via "automatic installation", you will see the value "YES". When you change this (automatically found) frequency via "fine tune" adjustment (installation menu - manual installation), the displayed value will change to "NO". Therefore, when you see the value "NO" in this line, it is an indication that the received channel is a non-standard signal (e.g. of a VCR). Surround Speakers. Not applicable in this set. On Timer. Indicates if the "On Timer" is set "ON" or "OFF" and if the timer is "ON" also displays start time, start day and program number. Change via "MENU", "TV", "FEATURES", and "ON TIMER". Preset Lock. Indicates if the selected preset has a child lock: "LOCKED" or "UNLOCKED". Change via "MENU", "TV", "FEATURES", "CHILD LOCK", and "CUSTOM LOCK". ·
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AVL. Indicates the last status of AVL (Automatic Volume Level): "ON" or "OFF". Change via "MENU", "TV", "SOUND", "AVL" 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". Front Spkr Dist. Not applicable for this TV. Front Spkr Dist. Not applicable for this TV.
How To Exit CSM Use one of the following methods: · After you press a key on the RC-transmitter (with exception of the "CHANNEL", "VOLUME" and digit (0-9) keys), or · After you switch the TV-set "OFF" with the mains switch. Note: When you de-activate CSM, it is possible (depending on the software version) that the size of the picture changes. This can be solved by pushing "P+" and then "P-".
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5.3
Problems And Solving Tips (Related To CSM)
Note: Below described problems are all related to the TV settings (visible in the CSM menu). The procedures to change the value (or status) of the different settings are described above. New value(s) are automatically stored.
·
5.3.1
Picture Problems Snowy/Noisy Picture 1. Check in CSM line NOISE FIGURE. In case the value is "127" or higher, and the value is also high on other programs, check the aerial cable/aerial system. For some software versions, the noise figure will only be valid when "Active Control" is set to "medium" or "maximum". 2. Check in CSM lines SHARPNESS and NOISE FIGURE. In case the value of line SHARPNESS is "3" or "4" and the value of line NOISE FIGURE is high ("127" or higher), decrease the "Sharpness" value. Picture Too Dark 1. Press "Menu", "TV", "Picture", "Smart Picture". In case the picture improves, increase the "Brightness" or the "Contrast" value. The new value(s) are automatically stored (in "personal" pre-set) for all TV channels. 2. Check in CSM line BRIGHTNESS and CONTRAST. If the value of these lines is low (< "10"), increase the "Brightness" or the "Contrast" value via the user menu. Picture Too Bright 1. Press "Menu", "TV", "Picture", "Smart Picture". In case the picture improves, decrease the "Brightness" or the "Contrast" value. The new value(s) are automatically stored (in "personal" pre-set) for all TV channels. 2. Check in CSM lines BRIGHTNESS and CONTRAST. If the value of these line is high (> 50), decrease the "Brightness" value or increase the "Contrast" value via the user menu. White Line Around Picture Elements And Text 1. Press "Menu", "TV", "Picture", "Smart Picture". In case the picture improves, decrease the "Sharpness" value. The new value is automatically stored (in "personal" pre-set) for all TV channels. 2. Check in CSM line "Sharpness". If the value is high, decrease it. The new value is automatically stored for all TV channels. No Picture Check in CSM line TUNED BIT. In case the value is "No", install the required program again. Open the installation menu and perform manual installation.
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CUSTOMER SERVICE MENU 4 · Child Lock. Indicates the last status of the general child lock: "UNLOCK", "LOCK", or "CUSTOM LOCK". Change via "MENU", "TV", "FEATURES", "CHILD LOCK", and "LOCK". · Age Lock. Indicates the last status of the EPG rating for child lock: "OFF", "4 YEARS", "6 YEARS", "8 YEARS", "10 YEARS", "12 YEARS", "14 YEARS" or "16 YEARS". This is only displayed if child lock is set to "CUSTOM LOCK" · Lock After. Indicates at what time the child lock is set: "OFF" or e.g. "18:45" (lock time). This is only displayed if child lock is set to "CUSTOM LOCK" · Category Lock. Indicates the last status of the EPG theme child lock: "MOVIES", "NEWS", "SHOWS", "SPORTS", "CHILDREN", "MUSIC", "CULTURE", or "SERIES". This is only displayed if child lock is set to "CUSTOM LOCK". It is possible that more than one value is shown. · Program Category. Indicates the theme of the selected transmitter: "MOVIES", "NEWS", "SHOWS", "SPORTS", "CHILDREN", "MUSIC", "CULTURE", or "SERIES". · TV Ratings Lock. Only applicable for US. · Movie Ratings Lock. Only applicable for US. · V-Chip TV Status. Only applicable for US. CUSTOMER SERVICE MENU 5 · V-Chip Movie Status. Only applicable for US. · 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).
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Service Modes, Error Codes, and Fault Finding 5.4
5.4.1
No Picture Or Unstable Picture A scrambled or decoded signal is received. Black And White Picture Check in CSM line COLOUR. In case the value is low (< "10"), increase the "Colour" value via the user menu. The new value is automatically stored for all TV channels. No Colours/colour Lines Around Picture Elements Or Colours Not Correct Or Unstable Picture 1. Check in CSM line TV SYSTEM. If a "strange" system pops up, something has gone wrong during installation. Reinstall the channel. 2. If in CSM line TV SYSTEM is "L", then the installed system for this pre-set is "France" (SECAM standard). if the country requires a PAL standard, "West Europe" is required. Install the required program again: open the installation menu and perform manual installation. Select system "West Europe". Menu Text Not Sharp Enough 1. Press "MENU", "TV", "PICTURE", "SMART PICTURE". In case picture improves, decrease the contrast value. The new value(s) are automatically stored for all TV channels. 2. Check line "Contrast". If the value is high, decrease the contrast value. 5.3.2 Sound Problems No Sound From Left And Right Speaker Check line 6 "Volume". The value is low. Increase the value of "Volume". The new value(s) are automatically stored (in "personal" pre-set) for all TV channels.
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 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. Stepwise Start-up Under normal circumstances, a fault in the power supply, or an error during start-up, will switch the television to protection mode. ComPair can take over the initialisation of the television. In this way, it is possible to distinguish which part of the startup routine (hence which circuitry) is causing the problem. Take notice that the transition between two steps can take some time, so give the TV some time to reach a stable state. During the transition time, the LED can blink strangely. Stepwise Start-up Explanation This is realised via ComPair and is very helpful when a protection is activated (see also chapter "Protections"). The following diagram shows the start-up procedure of the TV.
Service Modes, Error Codes, and Fault Finding
Every step of the stepwise start-up (also called trapped startup) in the diagram corresponds with the number of times the LED blinks.
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Mains cord IN
OUT
OTC gets supply voltage OTC resets, Initialise IO pins Reset Audio= HIGH Read NVM identification enable watchdog
Start time extraction Start P50 recording Start EPG loading Standby bit = OFF Ambient light ON Trapped Startup 1
Stand by Put Standby line LOW CPU GO becomes HIGH Set STBYEN,VCCON,PFCON= 1 Only FHP (opt 27) Keep sound amplifiers muted with sound enable = HIGH +5V and +8V is switched ON +8V and +5V get their nominal level, detected by the OTC
OFF
Tact switch
Notes (*): · When the TV is in stepwise mode and, due to stepping-up, a protection is activated, the TV will really go into protection (blinking LED). The TV will not leave the stepwise mode however. If state X is the state where the TV went to protection, stepwise start-up will return to state X-1. At state (X-1) diagnostic measurements can be performed. Also, in the short time the TV is in state X but not yet in protection, you can also do some measurements. · Stepwise start-up can NOT be used for Samsung displays (SDI). The TV will not react in a proper way, due to other timing specifications. How to Connect This is described in the chassis fault finding database in ComPair.
Stand by bit = OFF
Time out: 30X200msec
Goto protection
Activate protection algorithms for +8V and +5V and I²C (start I²C protection the moment the component is initialised). Trapped Startup 2 Read rest of NVM information Initialize HIP IF, source selection, 2fh input, video processing : Switch ON the sync output: set_syncout_tristate= OFF 400msec>t>200msec Initialize tuner Initialize 3D Combfilter or Initialize Columbus
TO UART SERVICE CONNECTOR
TO I2C SERVICE CONNECTOR
Initialize PICNIC + screen info Initialize rest of PIP/DW module Start TXT acquisition and time extraction Reset Audio = LOW and Initialize MSP
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-5 ComPair interface connection
Initialize EBILD
Screen type
Start up LCD (see next drawing)
Initialize PDP FHP (see next drawing)
Initialize PDP SDI (see next drawing)
E_14620_048.eps 160805
Figure 5-3 Stepwise start-up (part 1)
Initialize PDP
START
Set Fixed settings
PDP ON
How to Order ComPair order codes (EU/AP/LATAM): · Starter kit ComPair32/SearchMan32 software and ComPair interface (excl. transformer): 3122 785 90450. · ComPair interface (excl. transformer): 4822 727 21631. · Starter kit ComPair32 software (registration version): 3122 785 60040. · Starter kit SearchMan32 software: 3122 785 60050. · ComPair32 CD (update): 3122 785 60070 (year 2002), 3122 785 60110 (year 2003 onwards). · SearchMan32 CD (update): 3122 785 60080 (year 2002), 3122 785 60120 (year 2003), 3122 785 60130 (year 2004). · ComPair firmware upgrade IC: 3122 785 90510. · Transformer (non-UK): 4822 727 21632. · Transformer (UK): 4822 727 21633. · ComPair interface cable: 3122 785 90004. · 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. 5.4.2 LVDS Tool Introduction This service tool (also called "ComPair Assistant 1") may help you to identify, in case the TV does not show any picture, whether the Small Signal Board (SSB) or the display of a Flat TV is defective. Furthermore it is possible to program EPLDs with this tool (Byte blaster). Read the user manual for an explanation of this feature. Since 2004, the LVDS output connectors in our Flat TV models are standardised (with some exceptions). With the two delivered LVDS interface cables (31p and 20p) you can cover most chassis (in special cases, an extra cable will be offered).
Stby bit set?
no yes Ebild: POWER ON
Wait 200 msec
no Power OK (POR OTC)? no
Time out 10 sec?
yes
yes Goto protection
Ebild: Put Reset flag low
Ebild: Output blanking: OFF
Semi stand by
PDP ON
F_15470_005.eps 160805
Figure 5-4 Stepwise start-up (part 2): Initialise SDI v4 (*)
EN 18
5.
FTP2.4L AA
Service Modes, Error Codes, and Fault Finding
5.5.4 Error Codes In case of non-intermittent faults, clear the error buffer before you begin the repair. This to ensure that old error codes are no longer present. Before clearing the buffer, write down the content, as this history can give you significant information. 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 various errors: · I2C device errors. · I2C bus errors. · Protection errors. · Errors not related to an I2C device, but of importance: FEM (Falconic with Embedded Memory) (Error 26): at start-up, after initialisation of the PICNIC, the presence of the FEM can be checked. Eagle (Error 27): at start-up, after initialisation of the PICNIC, the presence of the Eagle can be checked.
When operating, the tool will show a small (scaled) picture on a VGA monitor. Due to a limited memory capacity, it is not possible to increase the size when processing high-resolution LVDS signals (> 1280x960). Below this resolution, or when a DVI monitor is used, the displayed picture will be full size. Generally this tool is intended to determine if the SSB is working or not. Thus to determine if LVDS, RGB, and sync signals are okay. How to Connect Connections are explained in the user manual, which is packed with the tool. Note: To use the LVDS tool, you must have ComPair release 2004-1 (or later) on your PC (engine version >= 2.2.05). For every TV type number and screen size, one must choose the proper settings via ComPair. The ComPair file will be updated regularly with new introduced chassis information. How to Order · LVDS tool (incl. two LVDS cables: 31p and 20p): 3122 785 90671. · LVDS tool Service Manual: 3122 785 00810.
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. When multiple errors occur (errors occurred within a short time span), there is a high probability that there is some relation between them.
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). Examples: 0 0 0 0 0: No errors detected 6 0 0 0 0: Error code 6 is the last and only detected error 9 6 0 0 0: 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". · When you transmit the commands "DIAGNOSE" - "99" "OK" with ComPair (or with a DST). · If the content of the error buffer has not changed for 50+ hours, it resets automatically.
Service Modes, Error Codes, and Fault Finding
Table 5-3 Error Code Overview Error Device 1 3 4 5 6 8 13 14 18 21 23 24 25 26 27 32 34 35 55 76 118 119 121 M24Cxx SAA4978 Supply 5 V Supply 8 V Slow I2C bus blocked TDA932x UV1318/... MSPxxxx Fast I2C bus blocked M62320 UV1318/... SAB9081 Z86130 SAA4998 T6TX5 M29W400xx TDA9320 T6TU5 DC/DC converter Audio supply AD9883A Sil9993 EPLD Description NVM, spontaneous blinking error 1 PICNIC 5V protection 8V protection Spontaneous blinking error 6 HIP High-end Input Processor Tuner protection ITT sound processor Spontaneous blinking error 18 I/O Expander PIP Tuner protection PIP Muppet PIP V-chip (only for USA) FEM (Falconic with Embedded Memory) Eagle 1C Flash Ram (EPG) Second HIP Columbus One of the voltages is not ok + protection error Audio supply protection AD converter HDMI receiver EPLD error
FTP2.4L AA
5.
EN 19
Def. item 7011 7713 7323 1T01 7A02 7P56 1T02 7PA6 7P51 7760 7720 7012 7P09 7752 7L01 7I18 7V01
Def. Module indication Diagr. Feature Box +5V Supply +8V Supply Slow I2C Blocked Chroma IF IO Tuner Audio module Fast I2C Blocked Video Dual Screen Video Dual Screen Video Dual Screen Video Dual Screen +3V (FBX) Supply +3V (FBX) Supply EPG Memory Video Dual Screen Video Control MSB HD Video Control Video control B5a B3a B5a B5a B2 B13a B6a B15b B13b B15c B15b B3b B3c B5a B15a B3d B19a B14f B19d
Note: If error 3 or error 55 appears, sometimes error 16 is also logged. Error 16 is a non existing error. Note: · Error codes 1, 6, or 18 are protection codes and in this case, supplies of some circuits will be switched "off". Also, in protection, the LED will blink the number of times equivalent to the most recent error code. Note: If errors 1, 6, or 18 occur, the LED always gives the last occurred error even if the TV is NOT in service mode. 5.6.2 How To Activate Use one of the following methods: · Activate the SDM (only via soldering pads marked "SDM" on SSB, see figure "Service pads"). The blinking front LED will show the entire contents of the error buffer (this works in "normal operation" mode and in "protection" mode). · Transmit the commands "MUTE" - "062500" - "OK" with a normal RC. The complete error buffer is shown. Take notice that it takes some seconds before the blinking LED starts. · Transmit the commands "MUTE" - "06250x" - "OK" with a normal RC (where "x" is a number between 1 and 5). When x= 1 the last detected error is shown, x= 2 the second last error, etc.... Take notice that it takes some seconds before the blinking LED starts. · "DIAGNOSE X" with the DST (where "x" is a number between 1 and 5). When x= 1 the last detected error is shown, x= 2 the second last error, etc.... When x = 0 all errors are shown.
5.6
5.6.1
The Blinking LED Procedure
Introduction Via this procedure, you can make the contents of the error buffer visible via the front LED. This is especially useful for fault finding, when there is no picture. When the SDM is activated, the front LED will show (blink) the contents of the error-buffer. Error-codes > 10 are shown as follows: A long blink of 750 ms (which is an indication of the decimal digit), A pause of 1.5 s, "n" short blinks (where "n" = 1 - 9), When all the error-codes are displayed, the seq