Text preview for : Philips Chassis BL2.2U, BL2.3U AA (Service Manual).pdf part of Philips BL2.2U, BL2.3U AA Philips Chassis BL2.2U, BL2.3U AA (Service Manual)
Back to : Philips Chassis BL2.2U, B | Home
Color Television
Chassis
BL2.2U, BL2.3U
AA
F_15400_000.eps 200505
Contents
Page
Contents
Page
116-116 116-116 116-116 119-119 119-119 121-121 123-123 123-123 126 130-132 130-132 130-132
1. Technical Specifications, Connections, and Chassis Overview 2 2. Safety Instructions, Warnings, and Notes 6 3. Directions for Use 8 4. Mechanical Instructions 9 5. Service Modes, Error Codes, and Fault Finding 14 6. Block Diagrams, Testpoint Overview, and Waveforms Wiring Diagram (32") LCD LPL 33 Wiring Diagram (37") LCD LPL 34 Wiring Diagram (42") LCD LPL 35 Block Diagram Supply + Standby (32") 36 Block Diagram Supply + Standby (37") 37 Block Diagram Supply + Standby (42") 38 Block Diagram Video (32") 39 Block Diagram Video (37") 40 Block Diagram Audio (32") 41 Block Diagram Audio (37") 42 Block Diagram Control (32") 43 Block Diagram Control (37") 44 I2C overview 45 Supply Lines Overview (32") 46 Supply Lines Overview (37") 47 7. Circuit Diagrams and PWB Layouts Drawing LCD Supply (32"): Mains Filter + Standby (A1) 48 LCD Supply (32"): Supply (A2) 49 LCD Supply (37"): Mains Filter + Standby (A1) 52 LCD Supply (37"): Supply (A2) 53 LCD Supply (42"): MF + Stdby Part A (A1) 56 LCD Supply (42"): Supply Part A (A2) 57 LCD Supply (42"): MF + Stdby Part B (A3) 58 LCD Supply (42"): Supply Part B (A4) 59 Ambi Light Panel (Optional) (AL) 62 SSB (B1-B12) 64-102
8. 9.
10. 11.
External I/O Panel: Externals A (32") (BE1) 113 External I/O Panel: Externals B (32") (BE2) 114 External I/O Panel: Externals C (32") (BE3) 115 External I/O Panel: Externals A (37") (BE1) 117 External I/O Panel: Externals B (37") (BE2) 118 Side I/O Panel (37") (D) 120 Control Board (32") (Top Control) (E) 122 Control Board (37") (Side Control) (E) 122 LED Panel (32") (J) 124 Standby/Audio Panel: Connections (SA1) 127 Standby/Audio Panel: Standby (SA2) 128 Standby/Audio Panel: Audio (SA3) 129 Alignments 133 Circuit Descriptions, Abbreviation List, and IC Data Sheets 138 Abbreviation List 160 IC Data Sheets 163 Spare Parts List 177 Revision List 192
PWB 50-51 50-51 54-55 54-55 60-61 60-61 60-61 60-61 63-61 103-112
© 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 0566 TV Service
Printed in the Netherlands
Subject to modification
EN 3122 785 15570
EN 2
1.
BL2.2U, BL2.3U
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: · Some models in this chassis range have a different mechanical construction. The information given here is therefore model specific. At the moment of writing, not all information was available (only the 37-inch BL2.3U model was available). As soon as the other models are introduced, an update manual will be released. · Figures below can deviate slightly from the actual situation, due to the different set executions. · Specifications are indicative (subject to change). : : : : : MP3 MP3-pro Slideshow (.alb) USB1.1 (BL2.3) USB2.0 (BL2.2)
USB input
1.1.4
Miscellaneous Power supply: - Mains voltage (VAC) - Mains frequency (Hz) Ambient conditions: - Temperature range (°C) - Maximum humidity
: 100 - 240 : 50/60
: +5 to +40 : 90% R.H.
1.1
1.1.1
Technical Specifications
Vision Display type Screen size : : : : : : : : : : : : : : : : : : : Tuner bands Supported video formats : : : : : : : : : : : LCD 32" (82 cm), 16:9 37" (94 cm), 16:9 42" (107 cm), 16:9 1366(*3)x768p 500:1 (37" + 42") 600:1 (32" BL2.3) 800:1 (32" BL2.2) 400 (42" BL2.2) 550 (32" BL2.2) 1000 (32"+37" BL2.3) 12 (32"+42" BL2.2) 16 (32"+37" BL2.3) 176x176 PLL ATSC, NTSC NTSC Unscrambled digital cable - QAM Digital cable ready CableCard VHF, UHF, S, Hyper 640x480i-1fH 640x480p-2fH 720x576i-1fH (BL2.2) 720x576p-2fH(BL2.2) 1280x720p-3fH 1920x1080i-2fH 640x480 @ 60Hz 800x600 @ 60Hz 1024x768 @ 60Hz 1366x768 @ 60Hz Power consumption (values are indicative) - Normal operation (W) : 135 (32" BL2.3) : 160 (32" BL2.2) : 190 (37" BL2.3) : 292 (42" BL2.2) - Stand-by (W) : <2 Dimensions (WxHxD in inch) : 36.7x20.0x4.7 (32") : 43.6x24.0x3.8 (37") : 48.8x26.8x4.1 (42") : 42.5 (32") : 66.2 (37") : t.b.c. (42")
Resolution (HxV pixels) Contrast ratio
Light output (cd/m2)
Weight (lbs)
Response time (ms) Viewing angle (HxV degrees) Tuning system TV Color systems Video playback Cable
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
SIDE I/O
USB
Supported computer formats
R AUDIO L CVBS
1.1.2
Sound Sound systems Maximum power (WRMS) : AV Stereo : BTSC : 2 x 15
SVHS
E_14700_064.eps 071004
1.1.3
Multimedia Figure 1-1 Side I/O connections (37 and 42-inch models) Supported digital media : : : : : : Compact Flash I & II Memory Stick Microdrive (upto 2GB) SD / mini SD Card Multi Media Card Smart Media Card
Supported file formats
: JPEG
Technical Specifications, Connections, and Chassis Overview
1.2.2
BL2.2U, BL2.3U
1.
EN 3
Digital Media Reader with USB2.0 (only for BP2.2) In some versions, a 6-in-1 card reader unit is available, which is connected via USB to the Small Signal Board (see also par. "Technical Specifications" -> "Multimedia"). This unit also contains two USB2.0 connectors (see figure rear connections).
1.2.3
Rear Connections (under side)
F_15570_009.eps 210605
Figure 1-4 Rear connections (under side, 32-inch models)
LAN POD SLOT IEEE1394 UART HDMI 1
19 18 1 2
HDMI 2
19 18 1 2
ANTENNA
OPTIONAL
F_15400_003.eps 070305
Figure 1-5 Rear connections (under side, 37 and 42-inch models) POD: CableCARD Interface 68p - See diagram B10A IEEE1394 (optional) 1 - Data (-) 2 - Data (+) 3 - Data (-) 4 - Data (+) RJ45: LAN (optional) 8p - See diagram B9A Service Connector (UART) 1 - UART_TX Transmit 2 - Ground Gnd 3 - UART_RX Receive HDMI 1 & 2: Digital Video, Digital Audio - In
1 2 3 4
19 18 1 2
E_06532_017.eps 250505
jk
TPBTPB+ TPATPA+
jk jk jk jk
F_15570_010.eps 210605
jk
Figure 1-2 Side I/O connections (32-inch models)
k H j
USB1.1 (only for BL2.3)
E_06532_022.eps 300904
Figure 1-3 USB (type A) 1 2 3 4 - +5V - Data (-) - Data (+) - Ground k jk jk H 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Figure 1-6 HDMI (type A) connector - 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
Mini Jack: Audio Headphone - Out Bk - Headphone 32 - 600 ohm / 10 mW 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 SVHS (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
ot
jq jq jq
H H j j
DDC clock DDC data Gnd Hot Plug Detect Gnd
EN 4
1.
BL2.2U, BL2.3U
Technical Specifications, Connections, and Chassis Overview
Rd - Audio R D 0.5 VRMS / 10 kohm jq
Aerial - In - - F-type (US) 1.2.4
Coax, 75 ohm
Rear Connections (rear side)
DIGITAL AUDIO Cinch: S/PDIF - In Bk - Coaxial 0.2 - 0.6 VPP / 75 ohm AV1 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 AV2 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 AV2 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 AV3 Cinch: Video YPbPr - In Rd - Video Pr 0.7 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Gn - Video Y 1 VPP / 75 ohm DIGITAL AUDIO Cinch: S/PDIF - Out Bk - Coaxial 0.4 - 0.6 VPP / 75 ohm
jq
H H j j
H H j j
jq jq jq
MONITOR OUT
S/PDIF OUT
L
R
CVBS
GEM STAR
jq jq jq
F_15400_001.eps 250505
kq
Figure 1-7 Rear connections (rear side, 37 and 42-inch models) AV1 Cinch: Video YPbPrHV- In Gn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm Bk - H-sync 0-5V Bk - V-sync 0-5V AV1 Cinch: Video CVBS - In, Audio - In Ye - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm MONITOR OUT Cinch: Video CVBS - Out, Audio - Out Ye - Video CVBS 1 VPP / 75 ohm kq kq Wh - Audio L 0.5 VRMS /10 kohm kq Rd - Audio R 0.5 VRMS / 10 kohm GEMSTAR Mini Jack: Remote Control - In/Out 1 - Ground Gnd 2 - RXD 3 - TXD 4 - IR-OUT 5 - RXD
jq jq jq jq jq
jq jq
H j k k k
1.3
Chassis Overview
A
LCD SUPPLY PANEL
STANDBY/ AUDIO PANEL
SA
CONTROL BOARD EXTERNAL I/O PANEL
E BE
LED PANEL
J
B
SMALL SIGNAL BOARD F_15570_008.eps 210605
Figure 1-8 CBA locations (32-inch model)
Technical Specifications, Connections, and Chassis Overview
BL2.2U, BL2.3U
1.
EN 5
AL
AMBI LIGHT PANEL (OPTIONAL)
AMBI LIGHT PANEL (OPTIONAL)
AL
SA
STANDBY/ AUDIO PANEL LCD SUPPLY PANEL
A
B
SMALL SIGNAL BOARD
LED PANEL
J
E
CONTROL BOARD SIDE I/O PANEL
D
MULTI MEDIA CARD READER & USB (OPTIONAL) EXTERNAL I/O PANEL
BE
F_15570_003.eps 200605
Figure 1-9 CBA locations (37- and 42-inch model)
EN 6
2.
BL2.2U, BL2.3U
Safety Instructions, Warnings, and Notes
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 color 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 that 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 which 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 avoid 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, it is essential when removing an (LF)BGA, 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 chance 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 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 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
Safety Instructions, Warnings, and Notes
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 neighboring 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). ·
BL2.2U, BL2.3U
2.
EN 7
·
·
avoid mixed regimes. If not to avoid, clean carefully 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 short 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.
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 "Workshop information". For additional questions please contact your local repair help desk. 2.3.5 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.
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
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 at least a solder-tip temperature of 400°C. To stabilize the adjusted temperature at the solder-tip. To exchange solder-tips for different applications. · Adjust your solder tool so that a temperature around 360°C - 380°C is reached and stabilized 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 rise 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
EN 8
3.
BL2.2U, BL2.3U
Directions for Use
3. Directions for Use
You can download this information from the following websites: http://www.philips.com/support http://www.p4c.philips.com As the software upgrade is a new feature, it is explained below.
Mechanical Instructions
BL2.2U, BL2.3U
4.
EN 9
4. Mechanical Instructions
Index of this chapter: 4.1 Cable Dressing 4.2 Service Positions 4.3 Assy/Panel Removal 4.4 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. At the moment of writing, not all information was available (only the 37inch BL2.3U). As soon as the other models are introduced, an update manual will be released. 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
F_15570_002.eps 200605
Figure 4-1 Cable dressing (37- inch)
4.2
Service Positions
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 (drawing of Mk1)
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 Mk2 aluminium stands (not on drawing) with 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". The new stands are backwards compatible with the earlier models. 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 10 4.3
4.3.1
4.
BL2.2U, BL2.3U
Mechanical Instructions
4.3.3 Keyboard Control Panel 1. Remove the panel [1] from its brackets [2]. 2. Disconnect the cable [3] from the panel.
Assy/Panel Removal
Rear Cover
3
3
3
3
3
3
3
4
1 2 4
4
3
3
3
3
4
3
3
3
3
3
F_15570_001.eps 150605
2
Figure 4-4 Rear cover screws (37-inch model) Warning: Disconnect the mains power cord before you remove the rear cover. 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 screws that secure the rear cover (see figure "Rear cover screws"); these are: 4 x T25 torx screws (1) for securing the stand/wall mount (also called "mushrooms"); 8 x tapping T10 torx screws (2) near the rear I/O panel; All parker T10 torx screws (3) around the edges of the rear cover (sets with the AmbiLight feature have a somewhat different construction). 6 x T10 torx screws in sunken holes (4). 3. Lift the rear cover from the cabinet cautiously. Make sure that wires and other internal components are not damaged during cover removal. 4.3.2 AmbiLight Inverter Panel (if present) After removal of the rear cover, these panels are accessible. 1. Disconnect the cable(s) from the panel. 2. Remove the T10 mounting screws [1] that hold the assy. 3. Take out the panel from its bracket [2].
1
3
F_15420_037.eps 070605
Figure 4-6 Keyboard control panel (all models) 4.3.4 Speakers After removal of the rear cover, you can access the speakers.
2
1
F_15400_117.eps 190505
Figure 4-5 AmbiLight inverter panel (BL2.2 only)
Mechanical Instructions
4.3.5 Side I/O Panel After removal of the rear cover, this panel is accessible. 1. Disconnect the cables [1][2] from the panel. 2. Remove the T10 mounting screws [3] that hold the assy. 3. Take out the panel from its bracket. When defective, replace the whole unit. 4.3.7
BL2.2U, BL2.3U
4.
EN 11
Stand-by Power Supply/Audio Amplifier Panel 1. Disconnect all cables [1] from the panel . 2. Remove the fixation screws [2] from the panel. 3. Take the panel out of its brackets.
2
3 1
1
2
F_15420_042.eps 070605
2
Figure 4-9 Stand-by/Audio panel 4.3.8 LCD Supply Panel 1. Disconnect all cables [1] from the panel. 2. Remove the fixation screws [2] from the panel. 3. Take the panel out of its brackets (it hinges on the right side).
F_15570_007.eps 150605
Figure 4-7 Side I/O panel (>32-inch models) 4.3.6 Multimedia Card Reader (if present) After removal of the rear cover, this panel is accessible. 1. Unplug the related USB cable at the top of the SSB. 2. Remove the two T10 mounting screws [1] that hold the assy. When defective, replace the whole unit.
1
1
1 1
2
F_15400_118.eps 190505
1
Figure 4-8 Multimedia card reader (BL2.2 only)
F_15420_041.eps 210605
Figure 4-10 LCD supply panel (>32-inch models)
EN 12
4.3.9
4.
BL2.2U, BL2.3U
Mechanical Instructions
4.3.11 LCD Panel To remove the LCD-panel, carry out the following steps: 1. Disconnect the cables [1] from the "L" and the "R" loudspeakers and remove the cables from their cable clamps [2], see Figure "Speaker cables and clamps". 2. Important: Unplug the LVDS connector [1] on the LCD panel (see Figure "LVDS connector"). Be careful, as this is a very fragile connector! 3. Unplug the connectors [1] from the Side I/O panel and from the LED panel and remove the cables from their cable clamps (see Figures "Side I/O panel" and "LED panel" at the beginning of this chapter). 4. Take the Keyboard Control panel out of its brackets and remove the Keyboard Control cable from its cable clamp (see Figure "Keyboard Control panel" at the beginning of this chapter). 5. Remove the fixation screws from the LCD panel (see Figure "LCD panel fixation screws") There are two types of torx screws, small ones and large ones. They are indicated by the two screwdrivers. 6. Unplug the connector of the LCD panel flat cable, at the "R" speaker side of the TV set, from connector 1316 on the lower left side of the Stand-by/Audio panel (see Figure "Stand-by/Audio panel"). 7. Lift the "L" speaker side of the metal frame 10 cm from the LCD panel and hold it in this position. Now, loosen the LCD flat cable and the "L" loudspeaker cable from their clamps, and disconnect the LCD flat cable connector from the LCD panel (see Figure "LCD panel connector"). 8. Lift the metal frame (together with all PWBs) from the LCD panel. Take care not to damage the fragile LVDS cable. 9. After removal of the metal frame, you can lift the LCD panel [1] from its plastic frame (see Figure "LCD panel"). 10. If the plastic frame is damaged, replace it by a new frame, after removing the loudspeakers, the Side I/O panel, the Keyboard Control panel, and the LED panel.
LED Panel 1. Disconnect the cables [1] from the panel. 2. Remove the T10 mounting screws [2] that hold the panel. 3. Take out the panel. When defective, replace the whole unit.
2
1
F_15570_006.eps 150605
Figure 4-11 LED panel 4.3.10 Small Signal Board (SSB) 1. Remove all connector fixation screws [1] at the connector plate (bottom side), and at the shielding plate (rear side). 2. Remove the fixation screws [2] of the connector plate itself. 3. Remove all shielding fixing screws [3]. For easy removal of the screw that is located near the LVDS connector, release the connector first! 4. Slide the connector plate away from the SSB [4], and lift the shielding from the SSB. 5. Unplug all cables on the SSB. 6. Remove the mounting screws that hold the SSB, and lift the panel from the set.
2 1
3 1
1
4 2
F_15570_005.eps 150605
Figure 4-12 SSB top shielding
F_15420_043.eps 070605
Figure 4-13 Speaker cables and clamps
Mechanical Instructions
BL2.2U, BL2.3U
4.
EN 13
F_15420_047.eps 070605
Figure 4-17 LCD panel
4.4
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 figure "Cable dressing". · Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.
F_15420_044.eps 070605
Figure 4-14 LVDS connector
F_15420_045.eps 070605
Figure 4-15 LCD panel fixation screws
F_15420_046.eps 070605
Figure 4-16 LCD panel connector
EN 14
5.
BL2.2U, BL2.3U
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 ComPair 5.5 Error Codes 5.6 The Blinking LED Procedure 5.7 Protections 5.8 Fault Finding and Repair Tips 5.9 Software Upgrading frequency to which the set will tune, would be as specified 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
The chassis is equipped with test points (Fxxx) printed on the circuit board assemblies. 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". 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 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. 5.2.2 Figure 5-1 SDM service pads
F_15400_103.eps 110505
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
Service Modes, Error Codes, and Fault Finding
· To display (or clear) the error code buffer.
BL2.2U, BL2.3U
5.
EN 15
Table 5-2 Display option code overview
Display Option 000 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 HEX 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C Display Type PDP SDI HD V3 PDP SDI HD V3 PDP FHP ALIS 1024i LCD LPL LCD LPL LCD LPL LCD Sharp PDP SDI SD V3 PDP FHP ALIS 1024i LCOS XION LCD AUO LCD LPL LCD AUO LCD SHARP LCD LPL HD PDP SDI SD PDP FHP ALIS 1080i PDP FHP ALIS 580i PDP FHP LCOS VENUS LCOS VENUS LCD LPL LCD LPL scanning BL. PDP LG SD PDP SDI SD V4 PDP SDI HD V4 PDP FHP HD A2 PDP SDI HD V4 LCD Sharp full HD Size 42" 50" 42" 30" 37" 42" 32" 42" 37" 30" 32" 32" 37" 42" 37" 37" 42" 55" 26" 32" 42" 42" 42" 42" 50" 37" Vertical Resolution 768p 768p 1024i 768p 768p 768p 768p 480p 1024i 720p 768p 768p 768p 768p 1080p 480p 1080i 1080i 768p 720p 1080p 768p 768p 480p 480p 768p 1024i 768p 1080p
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, you can continue by pressing the red button on the RC. Contents of SAM: · Hardware Info. A. VIPER SW Version. Displays the software version of the VIPER software (main software) (example: BX23U-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.
· ·
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.
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. (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).
EN 16
5.2.3
5.
BL2.2U, BL2.3U
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. Not applicable for US sets. 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) 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. Digital Signal Quality. Indicates quality of the received digital signal (0= low).
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: BX23U-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
How to Exit CSM Press any key on the RC-transmitter (with exception of the "CHANNEL +/-", "VOLUME", "MUTE" and digit (0-9) keys).
BL2.2U, BL2.3U
5.
EN 17
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: 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.
Off
Mains "off"
Mains "on"
- WakeUp requested - Acquisition needed
WakeUp requested
Stand-by
(Off St-by)
- No data Acquisition required and no POD present - Tact SW pushed - WakeUp requested - Acquisition needed
Semi Stand-by
Active
- St-by requested - Tact SW pushed
No data Acquisition required and POD present - POD Card removed - Tact SW pushed GoToProtection
WakeUp requested GoToProtection
POD Stand-by
GoToProtection
On
Protection
F_15400_095.eps 300505
Figure 5-2 Transition diagram
EN 18
5.
BL2.2U, BL2.3U
Service Modes, Error Codes, and Fault Finding
Off
Mains is applied
Stand-by or Protection
action holder: MIPS action holder: St-by autonomous action
Standby Supply starts running. +5V2, 1V2Stb, 3V3Stb and +2V5D become present. In case of PDP 3V3 Vpr to CPU PDP becomes present.
st-by µP resets
All I/O lines have a "high" default state: - Assert the Viper reset. - Sound-Enable and Reset-Audio should remain "high". - NVM power line is "high", no NVM communication possible.
If the protection state was left by short circuiting the SDM pins, detection of a protection condition during startup will stall the startup. Protection conditions in a playing set will be ignored. The protection mode will not be entered.
Initialise I/O pins of the st-by µP, start keyboard scanning, RC detection, P50 decoding. Wake up reasons are "off".
- Switch Sound-Enable and Reset-Audio "high". They are "low" in the standby mode if the standby mode lasted longer than 2s.
In case of FHP PDP: Switch PDPGO "low" CPUGO (inverse of the stby I/O line POD-MODE) and PDPGO are then both "low" and the PDP is in the "low power" mode.
Switch "low" the NVM power reset line. Add a 2ms delay before trying to address the NVM to allow correct NVM initialization.
Switching the POD-MODE low in an FHP PDP set makes the CPUGO go "high" and starts the PDP CPU. except in an FHP PDP Cold Boot
Switching the POD-MODE and the "on" mode "low" in an PDP set SDI makes the PDP supplies go to the "on" mode.Within 4 seconds, a valid LVDS must be sent to the display to prevent protection. (valid for V3 version)
Switch "on" all supplies by switching LOW the POD-MODE and the ON-MODE I/O lines.
+5V, +8V6, +12VS, +12VSW and Vsound are switched on
Wait 50ms and then start polling the detect5V, detect-8V6 and detect-12V every 40ms.
The availability of the supplies is checked through detect signals (delivered by dedicated detect-IC's) going to the st-by µP. These signals are available for +12V, +8V6, +5V, +1V2 and +2V5. A low to high transition of the signals should occur within a certain time after toggling the standby line. If an observers is detected before the time-out elapses, of course, the process should continue in order to minimize start up time.
detect-5V received within 2900 ms after POD-MODE toggle? Switching the PDPGO "high" will give a visual artefact and should only be done if really necessary. Yes
No
FHP PDP Set? No
Yes Switch PDPGO high: PDP should start: 5V, 8V6 and 12V are activated
activate +5V supply detection algorithm
Yes
detect-5V received within 2900 ms after PDPGO toggle?
No
+5V error
SP
detect-12VSW received within 2900 ms after POD-mode toggle? No +12V error
Yes activate +12VSW supply detection algorithm
SP
No need to wait for the 8V6 detection at this point.
detect-8V6 received within 6300 ms after POD-mode toggle? Startup shall not wait for this detection and continue startup.
Yes
No Enable the +1V2 supply (ENABLE-1V2) activate +8V6 supply detection algorithm
+8V6 error
Start polling the detect-1V2 every 40ms
To part B
To part B
SP
return
F_15400_096a.eps 100505
Figure 5-3 "Off" to "Semi Stand-by" flowchart (part 1)
Service Modes, Error Codes, and Fault Finding
BL2.2U, BL2.3U
5.
EN 19
From part A
From part B
action holder: MIPS action holder: St-by autonomous action
detect-1V2 received within 250ms?
No
+1.2V error
Yes
SP
No separate enable and detect is present for the +2V5 supply in the Baby Jaguar.
Enable the supply for +2.5V and +3.3V (ENABLE-3V3)
No
Start polling the detect-3V3 every 40ms
detect-3V3 received within 250 ms?
No
+3.3V error
Yes Activate supply detection algorithms for +1V2 and +3V3
SP
SUPPLY-FAULT I/O line is High?
No
Supply fault error
Yes Enable the supply fault detection interrupt
SP
Set I²C slave address of Standby µP to (A0h)
Detect EJTAG debug probe (pulling pin of the probe interface to ground by inserting EJTAG probe)
EJTAG probe connected ?
Yes
No
No
Cold boot?
Yes
Release viper reset Feed initializing boot script (3) disable alive mechanism
Release viper reset Feed warm boot script(2)
Release viper reset Feed cold boot script(1) Release PNX2015 reset 100ms after Viper reset is released Release PNX2015 reset 100ms after Viper reset is released
No
Bootscript ready in 1250 ms?
Yes Set I²C slave address of Standby µP to (64h)
RPC start (comm. protocol)
No
Flash to RAM image transfer succeeded within 30s?
Code = 5 Yes
Switch Viper in reset
Code = 53
No
Viper SW initialization succeeded within 20s?
To part C
To part C
To part C
To part C
F_15400_096b.eps 260505
Figure 5-4 "Off" to "Semi Stand-by" flowchart (part 2)
EN 20
5.
BL2.2U, BL2.3U
Service Modes, Error Codes, and Fault Finding
From part B
Wait 10ms
From part B
Yes
From part B
action holder: MIPS action holder: St-by
Enable Alive check mechanism Switch the NVM reset line HIGH. MIPS reads the wake up reason from standby µP. Wait until Viper starts to communicate
autonomous action
Disable all supply related protections and switch off the +2V5, +3V3 DC/DC converter.
Wait 5ms
Wait for the +8V6 to be detected if not yet present. (if it does not come, the standby µP will enter a protection mode, this is not a dead end here)
switch off the remaining DC/DC converters
3-th try?
Switch POD-MODE and ON-MODE I/O line "high".
SDI PDP Set?
Yes
Yes
Switch "on" the LVDS output of the PNX2015 with a correct clock frequency within 4s after switching the POD and "on" mode to prevent PDP display supply protection.
PWR-OK-PDP received within 10s after POD and "on" mode toggle ?
No
Log Code as error code These LVDS items are SDI V3 display only !!
Yes
Log display error and enter protection mode
Init SDI PDP
SP
SP
Switch LVDS back off if end state is not the active state.
No
FHP PDP Set?
Yes
Send STBYEN = 1 PFCON = 1 VCCON = 1 to PDP display (I²C)
Switch PDPGO "low"
Init FHP PDP No
Start 4 seconds preheating timer in case of a LPL scanning backlight LCD set.
AVIP needs to be started before the MPIF in order to have a good clock distribution. AVIP default power-up mode is Standby. The Viper instructs AVIP via I²C to enable all the PLLs and clocks and hence enter to Full Power mode.
Initialize PNX2015 HD subsystem
MPIFs should be initialized MPIF should deliver 4 observers: POR= 0; normal operation MSUP = 1: Main supply is present ASUP = 1; audio supply is present ROK = 1; reference frequency is present (coming from AVIP)
All observers present with correct state?
No
Log appropriate Observer error
Yes Initialize tuners and HDMI
Initialize source selection
Initialize video processing ICs - Spider (if available)
Initialize Columbus Initialize 3D Combfilter Initialize AutoTV
Do not enter semi-standby state in case of an LPL scanning backlight LCD set before 4 s preheating timer has elapsed.
Semi-Stand-by
Figure 5-5 "Off" to "Semi Stand-by" flowchart (part 3)
F_15400_096c.eps 260505
Service Modes, Error Codes, and Fault Finding
BL2.2U, BL2.3U
5.
EN 21
action holder: MIPS action holder: St-by autonomous action
32" / 37" / 42" LCD LPL Semi Standby
Wait until previous on-state is left more than 2 seconds ago. (to prevent LCD display problems)
Assert RGB video blanking and audio mute
Initialize audio and video processing ICs and functions according needed use case.
Wait until QVCP generates a valid LVDS output clock.
Switch "on" 12V LCD supply (LCD-Power-on)
Start to apply valid interface signals to the module (LVDS) within a time frame of min. 17.5ms to max. 67.5ms after supply switch "on". In implementation, use 25ms, this makes it compatible with 37HD"Sharp (t=17.5ms is the supply switch-on delay taken into account)
Wait 250ms (min. = 200ms)
Switch "off" RGB blanking
Switch "on" LCD lamp after valid, stable video, corresponding to the requested output is delivered by the Viper
Switch Audio-Reset and sound enable "low" and demute
Active
F_15570_011.,eps 210605
Figure 5-6 "Semi Stand-by" to "Active" flowchart
EN 22
5.
BL2.2U, BL2.3U
Service Modes, Error Codes, and Fault Finding
32" / 37" / 42" LCD LPL
action holder: MIPS
Active
Mute all sound outputs.
action holder: St-by autonomous action
Switch reset-audio and sound-enable lines "high".
Switch "off" LCD lamp.
Mute all video outputs.
Wait 250ms (min. = 200ms).
Switch "off" LVDS signal (Viper I/O: PD-LVDS).
Switch "off" 12V LCD supply within a time frame of min. 0.5 ms to max. 50ms after LVDS switch "off". (Viper I/O: LCD_PWR_ON).
Semi Standby
F_15570_012.eps 210605
Figure 5-7 "Active" to "Semi Stand-by" flowchart
Service Modes, Error Codes, and Fault Finding
BL2.2U, BL2.3U
5.
EN 23
POD
Semi Stand-by
action holder: MIPS action holder: St-by autonomous action
Transfer Wake up reasons to the Stand-by µP.
Images are re-transferred to DDR-RAM from Flash RAM (verification through checksum).
MIPS image completes the application reload, stops DDR-RAM access, puts itself in a sleepmode, and signals the standby µP when the Stand-by mode can be entered.
DDR-RAM is put in self refresh mode and the images are kept in the hibernating DDR-RAM.
Wait 5ms
Switch Viper in reset state
Wait 10ms
Switch the NVM reset line "high".
Disable all supply related protections and switch "off" the +2V5, +3V3 DC/DC converter.
Wait 5ms
Switch "off" the remaining DC/DC converters
Switch "off" all supplies by switching "high" the PODMODE and the ON-MODE I/O lines. Important remark: release RESET AUDIO and SOUND_ENABLE 2 sec after entering stand-by to save power For PDP this means CPUGO becomes low.
Stand-by
F_15400_099.eps 260505
Figure 5-8 "Semi Stand-by" / "POD" to "Stand-by" flowchart
EN 24
5.
BL2.2U, BL2.3U
Service Modes, Error Codes, and Fault Finding
action holder: MIPS action holder: St-by autonomous action
Semi Stand-by
This state transition is entered when stand-by is requested and an authenticated POD is present.
Reboot
Power-down HDMI and 1394 hardware by keeping POWERDOWN-1394-GPIO- 0 line "high".
Set Viper HW blocks (TM1, TM2, MBS, VMSP1 and VMSP2) to powerdown mode.
Hibernate the PNX2015 memory and keep the PNX2015 in reset state
Disable +8V6 supply detection algorithm
Disable audio protection algorithm
Switch "off" all supplies which are not needed in POD standby by switching "high" the ON-MODE I/O line.
POD Stand-by
F_15400_100.eps 260505
Figure 5-9 "Semi Stand-by" to "POD Stand-by" flowchart
Service Modes, Error Codes, and Fault Finding
BL2.2U, BL2.3U
5.
EN 25
POD stand by
action holder: MIPS action holder: St-by autonomous action Full SSB power and the display related supplies become available Switch "on" all supplies by switching "low" the ON-MODE I/O line.
+8V6 detected within 200 ms after ON-MODE toggle?
No
+8V6 error
Yes activate +8V6 supply detection algorithm
SP
Wait 2000ms to allow main supply to deliver full power.
Enable audio protection algorithm
SDI PDP Set?
Yes
Switch "on" the LVDS output the PNX2015 with a correct clock frequency within 4s after switching the POD and ONmode to prevent PDP display supply protection.
PWR-OK-PDP received within 5s after POD and ONmode toggle ?
No
Yes
Log display error and enter protection mode
No
Init SDI PDP These LVDS items are SDI V3 display only !! Switch LVDS back "off" if end state is not the active state.
SP
Power-up HDMI and 1394 hardware by putting POWERDOWN-1394 GPIO 0 line "low".
Enable Viper HW blocks (TM1, TM2, MBS, VMSP1 and VMSP2) which were in powerdown mode.
Release PNX2015 reset
(AVIPs must be started before the MPIFs in order to have a good clock distribution). AVIP default power-up mode is Stand-by. The Viper instructs AVIP via I2C to enable all the PLLs and clocks and hence enter to Full Power mode.
initialize PNX2015 HD subsystem
Initialize MPIFs MPIF should deliver 4 observers: POR= 0; normal operation MSUP = 1: Main supply is present ASUP = 1; audio supply is present ROK = 1; reference frequency is present (coming from AVIP)
All observers present with correct state?
No
appropriate Observer error
Yes Initialize tuners and Hirate
MP
Initialize source selection
Initialize video processing ICs - Spider (if available)
Initialize Columbus Initialize 3D Combfilter Initialize AutoTV
Semi-Stand-by
Figure 5-10 "POD Stand-by" to "Semi Stand-by" flowchart
F_15400_101.eps 120505
EN 26
5.
BL2.2U, BL2.3U
Service Modes, Error Codes, and Fault Finding
action holder: MIPS action holder: St-by autonomous action
MP
Log the appropriate error and set stand-by flag in NVM
SP
Redefine wake up reasons for protection state and transfer to stand-by µP.
Switch "off" LCD lamp supply (for LCD sets)
If needed to speed up this transition, this block could be omitted. This is depending on the outcome of the safety investigations.
Wait 250ms (min. = 200ms)
Switch "off" LVDS signal
Switch "off" 12V LCD supply within a time frame of min. 0.5ms to max. 50ms after LVDS switch "off". (for LCD sets)
Ask stand-by µP to enter protection state
Switch Viper in reset state
Wait 10ms
Switch the NVM reset line "high".
Disable all supply related protections and switch "off" the +2V5, +3V3 DC/DC converter.
Wait 5ms
Switch "off" the remaining DC/DC converters
Switch "off" all supplies by switching "high" the PODMODE and the ON-MODE I/O lines.
Flash LED in order to indicate protection state*. (*): This can be the standby LED or the ON LED depending on the availability in the set under discussion.
F_15400_102.eps 120505
Protection
Figure 5-11 "Protection" flowchart
Service Modes, Error Codes, and Fault Finding 5.4
5.4.1
BL2.2U, BL2.3U
5.
EN 27
ComPair
TO UART SERVICE CONNECTOR TO I2C SERVICE CONNECTOR
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: · 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. · 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. · 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.
PC
VCR
Power 9V DC
I2C
E_06532_021.eps 180804
Figure 5-12 ComPair interface connection 5.4.4 How to Order ComPair order codes (US): · 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.
5.4.2
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: · Automatic (by communication 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 micro controller 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 micro controller of the television is working correctly and only to a certain extend. 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.
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 oc