Philips LC7.2E-LA Service Manual

Colour Television Chassis

ME7

LC7.2E

LA

ME7

G_16860_000.eps

200207

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis
Overview 2

2. Safety Instructions, Warnings, and Notes 6

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Fault Finding 16

6. Block Diagrams, Test Point Overviews, and

Waveforms

Wiring Diagram 26” & 32” 29
Wiring Diagram 37” & 42” 30
Wiring Diagram 42” 1080p 31
Block Diagram Supply 32
Block Diagram Video 33
Block Diagram Audio 34
Block Diagram Control & Clock Signals 35
Test Point Overview SSB (Bottom Side) 36
I2C IC’s Overview 37
Supply Lines Overview 38

7. Circuit Diagrams and PWB Layouts Diagram PWB
SSB: DC/DC (B02) 39 55-64
SSB: Tuner & Demodulator (B03A) 40 55-64
SSB: DVB - Demodulator (B03B) 41 55-64
SSB: DVB - Common Interface (B03C) 42 55-64
SSB: DVB - Mojo (B03D) 43 55-64
SSB: DVB - Mojo Memory (B03E) 44 55-64
SSB: DVB - Mojo Analog Back End (B03F) 45 55-64
SSB: Micro Processor (B04A) 46 55-64
SSB: Video Processor (B04B) 47 55-64
SSB: PNX2015: Audio Processor (B04C) 48 55-64
SSB: YPBPR & Rear IO (B06A) 49 55-64
SSB: I/O Scart 1 & 2 (B06B) 50 55-64
SSB: HDMI (B06C) 51 55-64
SSB: Headphone Amp & Muting (B06D) 52 55-64
SSB: Audio (B07) 53 55-64

©

Copyright 2007 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.

SSB: SRP List 54 55-64
Side A/V Panel (D) 65 66
Keyboard Control Panel (E) 67 68
1080P Panel: On Chip uController (F1) 69 76
1080P Panel: Flash & NVM (F2) 70 76
1080P Panel: LVDS In (F3) 71 76
1080P Panel: LVDS Out (F4) 72 76
1080P Panel: Supply In (F5) 73 76
1080P Panel: DDR SDRAM (F6) 74 76
1080P Panel: DC Power Supply (F7) 75 76
Front IR / LED Panel (J) 77 78

8. Alignments 79

9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 84
Abbreviation List 91
IC Data Sheets 93

10. Spare Parts List 101

11. Revision List 109

Published by TY 0767 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16862

EN 2 LC7.2E LA1.

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:

• Figures can deviate due to the different set executions.

• Specifications are indicative (subject to change).

1.1 Technical Specifications

1.1.1 Vision

Display type : LCD
Screen size : 26” (66 cm), 16:9

: 32” (82 cm), 16:9
: 37” (94 cm), 16:9
: 42” (107 cm), 16:9

Resolution (HxV pixels) : 1366x768

Dyn. contrast ratio : 3500:1 (26”)

Min. light output (cd/m
Typ. response time (ms) : 8 (26”, 32”)

Viewing angle (HxV degrees) : 160x150 (26”)

Tuning system : PLL
Presets/channels : 100 presets
Tuner bands : VHF, UHF, S, H
TV Colour systems : PAL B/G, D/K, I

Video playback : NTSC

Supported computer formats : 640x480

Supported video formats : 640x480i - 1fH

2

) : 500

: 1920x1080

: 4000:1 (32”)
: 5000:1 (37”)
: 5000:1 (42”)

: 6 (37”)
: 5 (42”)

: 176x176 (> 26”)

: SECAM B/G, D/K, L/L’
: DVB-T COFDM

: PAL
: SECAM

: 800x600
: 1024x768

: 720x576i - 1fH
: 640x480p - 2fH
: 720x576p - 2fH
: 1920x1080i - 2fH
: 1280x720p - 3fH
: 1920x1080p

(42PFL7662)

(42PFL7662)

1.1.3 Miscellaneous

Power supply:

- Mains voltage (V

- Mains frequency (Hz) : 50 / 60

Ambient conditions:

- Temperature range (°C) : +5 to +40

- Maximum humidity : 90% R.H.

Power consumption (values are indicative)

- Normal operation (W) : ≈ 120 (26”)

- Stand-by (W) : < 1

Dimensions (WxHxD cm) : 69.1x47.4x11.1 (26”)

Weight (kg) : 12.4 (26”)

) : 220 - 240

AC

: ≈ 140 (32”)
: ≈ 175 (37”)
: ≈ 240 (42”)

: 81.6x55.2x11.6 (32”)
: 94.4x62.8x11.3 (37”)
: 105.8x69.2x11.6 (42”)

: 16.3 (32”)
: 21.6 (37”)
: 27.9 (42”)

1.1.2 Sound

Sound systems : 2CS B/G, D/K

Maximum power (W

) : 2 x 5 (26”)

RMS

: NICAM B/G, D/K, I, L

: 2 x 10 (> 26”)

Technical Specifications, Connections, and Chassis Overview

1.2 Connection Overview

EN 3LC7.2E LA 1.

G_16860_046.eps

310107

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 Connections

EXT3: Head phone - Out

Bk - Head phone 32 - 600 ohm / 10 mW rt

EXT3: Cinch: Video CVBS - In, Audio - In

Rd - Audio R 0.5 V
Wh - Audio L 0.5 V
Ye - Video CVBS 1 V

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

PP

EXT3: S-Video (Hosiden): Video Y/C - In

1 -Ground Y Gnd H
2 -Ground C Gnd H
3 - Video Y 1 V
4 - Video C 0.3 V

/ 75 ohm j

PP

P / 75 ohm j

PP

1.2.2 Rear Connections

EXT1: Video RGB - In, CVBS - In/Out, Audio - In/Out

21

20

E_06532_001.eps

2

1

050404

Figure 1-2 SCART connector

1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

4 - Ground Audio Gnd H
5 - Ground Blue Gnd H
6 - Audio L 0.5 V
7 - Video Blue 0.7 V

/ 10 kohm j

RMS

/ 75 ohm j

PP

Figure 1-1 Side and rear I/O connections

8 - Function Select 0 - 2 V: INT

9 - Ground Green Gnd H
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - Video Green 0.7 V
12 - n.c.
13 - Ground Red Gnd H
14 - Ground P50 Gnd H
15 - Video Red 0.7 V
16 - Status/FBL 0 - 0.4 V: INT

17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS 1 V
21 - Shield Gnd H

EXT2: Video YC - In, CVBS - In/Out, Audio - In/Out

1 - Audio R 0.5 V
2 - Audio R 0.5 V
3 - Audio L 0.5 V
4 - Ground Audio Gnd H
5-n.c.
6 - Audio L 0.5 V
7 - C-out 0.7 V
8 - Function Select 0 - 2 V: INT

9-n.c.
10 - Easylink P50 0 - 5 V / 4.7 kohm jk
11 - n.c.
12 - n.c.
13 - n.c.
14 - Ground P50 Gnd H
15 - C 0.7 V
16 - Status/FBL 0 - 0.4 V: INT

17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video CVBS 1 V
20 - Video CVBS/Y 1 V
21 - Shield Gnd H

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

/ 75 ohm j

PP

/ 75 ohm j

PP

1 - 3 V: EXT / 75 ohm j

/ 75 ohm k

PP

/ 75 ohm j

PP

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 75 ohm k

PP

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

/ 75 ohm j

PP

1 - 3 V: EXT / 75 ohm j

/ 75 ohm k

PP

/ 75 ohm j

PP

EN 4 LC7.2E LA1.

Technical Specifications, Connections, and Chassis Overview

Common Interface

68p - See diagram B03C jk

Service Connector (UART)

1 - UART_TX Transmit k
2 - Ground Gnd H
3 - UART_RX Receive j

Aerial - In

- - IEC-type (EU) Coax, 75 ohm D

Service Connector (ComPair)

1 - SDA-S I
2-SCL-S I

2

C Data (0 - 5 V) jk

2

C Clock (0 - 5 V) j

3 - Ground Gnd H

HDMI 1 & 2: Digital Video, Digital Audio - In

19

18 2

1

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Figure 1-3 HDMI (type A) connector

1 - D2+ Data channel j
2-Shield Gnd H

1.3 Chassis Overview

3 - D2- Data channel j
4 - D1+ Data channel j
5 - Shield Gnd H
6 - D1- Data channel j
7 - D0+ Data channel j
8 - Shield Gnd H
9 - D0- Data channel j
10 - CLK+ Data channel j
11 - Shield Gnd H
12 - CLK- Data channel j
13 - n.c.
14 - n.c.
15 - DDC_SCL DDC clock j
16 - DDC_SDA DDC data jk
17 - Ground Gnd H
18 - +5V j
19 - HPD Hot Plug Detect j
20 - Ground Gnd H

EXT4: Cinch: Video YPbPr - In, Audio - In

Gn - Video Y 1 V
Bu - Video Pb 0.7 V
Rd - Video Pr 0.7 V
Wh - Audio L 0.5 V
Rd - Audio R 0.5 V

/ 75 ohm jq

PP

/ 75 ohm jq

PP

/ 75 ohm jq

PP

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

POWER SUPPLY UNIT

SMALL SIGNAL

B

BOARD

Figure 1-4 PWB/CBA locations (26” and 32” models)

SIDE I/O PANEL

CONTROL BOARD

LED PANEL

G_16860_047.eps

D

E

J

310107

Technical Specifications, Connections, and Chassis Overview

EN 5LC7.2E LA 1.

POWER SUPPLY UNIT

SMALL SIGNAL

B

BOARD

1080p PANEL

F

Figure 1-5 PWB/CBA locations (37” and 42” models without 1080p module)

SIDE I/O PANEL

CONTROL PANEL

LED PANEL

H_16940_008.eps

SIDE I/O PANEL

D

E

J

050307

D

POWER SUPPLY UNIT

SMALL SIGNAL

B

BOARD

Figure 1-6 PWB/CBA locations (42” models with 1080p module)

CONTROL PANEL

LED PANEL

G_16860_092.eps

E

J

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EN 6 LC7.2E LA2.

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

2.1 Safety Instructions

Safety regulations require the following during a repair:

• Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).

• Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.

Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:

• Route the wire trees correctly and fix them with the
mounted cable clamps.

• Check the insulation of the Mains/AC Power lead for
external damage.

• Check the strain relief of the Mains/AC Power cord for
proper function.

• Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):

1. Unplug the Mains/AC Power cord and connect a wire

between the two pins of the Mains/AC Power plug.

2. Set the Mains/AC Power switch to the "on" position

(keep the Mains/AC Power cord unplugged!).

3. Measure the resistance value between the pins of the

Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 Mohm and 12 Mohm.

4. Switch "off" the set, and remove the wire between the

two pins of the Mains/AC Power plug.

• Check the cabinet for defects, to prevent touching of any
inner parts by the customer.

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.

• Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.

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
nano-farads (n= x10

• 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 BGA (Ball Grid Array) ICs

Introduction

For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Repair downloads”. Here you will find Information
on how to deal with BGA-ICs.

-9

), or pico-farads (p= x10

-12

-6

),

).

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 Notes

2.3.1 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

BGA Temperature Profiles

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 "Repair downloads".
For additional questions please contact your local repair help
desk.

2.3.4 Lead-free Soldering

Due to lead-free technology some rules have to be respected
by the workshop during a repair:

• Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
workshops should be avoided because paste is not easy to
store and to handle.

• Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilize 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 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 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.

2.3.5 Alternative BOM identification

Directions for Use

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

EN 7LC7.2E LA 3.

MADE IN BELGIUM

220-240V 50/60Hz

VHF+S+H+UHF

S

~

128W

BJ3.0E LA

E_06532_024.eps

130606

The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”
(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2. This is important for

ordering the correct spare parts!

For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26= 35 different B.O.M.s can be
indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 1 and 2 refer to the production centre (e.g.
AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers
to the Service version change code, digits 5 and 6 refer to the
production year, and digits 7 and 8 refer to production week (in
example below it is 2006 week 17). The 6 last digits contain the
serial number.

Figure 2-1 Serial number (example)

2.3.6 Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide
if the board has to be exchanged or if it should be repaired on
component level.
If your repair procedure says the board should be exchanged
completely, do not solder on the defective board. Otherwise, it
cannot be returned to the O.E.M. supplier for back charging!

2.3.7 NVM content

If the processor NVM IC is replaced or initialised, the Model
Number, Serial Number, and SSB Code number must be re­written to the NVM. ComPair will foresee in a possibility to do
this.

2.3.8 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.

3. Directions for Use

You can download this information from the following websites:
http://www.philips.com/support
http://www.p4c.philips.com

EN 8 LC7.2E LA4.

Mechanical Instructions

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

4.1 Cable Dressing

LC07: 26” (BASIC SET)

Notes:

• Figures below can deviate slightly from the actual situation,
due to the different set executions.

• Follow the disassemble instructions in described order.

Figure 4-1 Cable dressing (26” models)

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Mechanical Instructions

EN 9LC7.2E LA 4.

Figure 4-2 Cable dressing (32-inch models)

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Figure 4-3 Cable dressing (37” models)

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EN 10 LC7.2E LA4.

Mechanical Instructions

Figure 4-4 Cable dressing (42” models without 1080p module)

H_16940_009.eps

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Figure 4-5 Cable dressing (42” models with 1080p module)

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Mechanical Instructions

EN 11LC7.2E LA 4.

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).

Note: the aluminium service stands can only be used when the
set is equipped with so-called “mushrooms”. Otherwise use the
original stand that comes with the set.

4.2.1 Foam Bars

1

Required for sets

1

42"

4.3 Assy/Panel Removal

4.3.1 Rear Cover

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 "Service Position").

2. Remove rear cover screws and the stand (if mounted).

3. Remove rear cover.

4.3.2 Keyboard Control Panel

1. Refer to next figure (is taken from the 32” model, but the
method is comparable for the other screen sizes).

2. Remove the T10 parker screws [1].

3. Unplug connector [2].

4. Remove the unit.

5. Release clips [3] and remove the board.

When defective, replace the whole unit.

1

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Figure 4-6 Foam bars

The foam bars (order code 3122 785 90580 for two pieces) can
be used for all types and sizes of Flat TVs. See figure “Foam
bars” for details.
Sets with a display of 42” and larger, require four foam bars [1].
Ensure that the foam bars are always supporting the cabinet
and never only the display.
Caution: Failure to follow these guidelines can seriously
damage the display!
By laying the TV face down on the (ESD protective) foam bars,
a stable situation is created to perform measurements and
alignments. By placing a mirror under the TV, you can monitor
the screen.

4.2.2 Aluminium Stands

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170504

Figure 4-7 Aluminium stands (drawing of MkI)

The new MkII 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!

3

2

1

Figure 4-8 Keyboard control panel

4.3.3 Side I/O Panel

1. Refer to next figure (is taken from the 32” model, but the
method is comparable for the other screen sizes).

2. Unplug connector [a].

3. Remove screws [b] and remove the complete module. One
of the screws is T10 tapping, the other one is T10 parker.

4. Remove T10 parker screw [c]. Refer to next figure.

5. Push catch [d] (located at the underside of the bracket) and
slide the unit to the right from its bracket [e]. See fig. “Side
I/O panel 2”.

6. To remove the PWB from its bracket, you have to lift the
catch [f] located on top of the head phone connector. At the
same time, slide the PWB out of its bracket [g]. See fig.
“Side I/O panel 3”.

When defective, replace the whole unit.

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EN 12 LC7.2E LA4.

s

7

Mechanical Instructions

b (1x)

a

Figure 4-9 Side I/O module

c

b (1x)

G_16860_066.ep

01020

g

2

f

Figure 4-12 Side I/O panel [3/3]

4.3.4 IR/LED Panel

1. Refer to next figure (is taken from the 32” model, but the
method is comparable for the other screen sizes).

2. Unplug connector(s) [1].

3. Release clip [2] and remove the board.

When defective, replace the whole unit.

G_16860_077.eps

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Figure 4-10 Side I/O panel [1/3] top side

2d

2e

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1

2

Figure 4-13 IR/LED panel

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G_16860_076.eps

Figure 4-11 Side I/O panel [2/3] bottom side

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Mechanical Instructions

EN 13LC7.2E LA 4.

4.3.5 Speakers

This depends on the model/screen size: for the 26” and 32”
models, the bare speakers are accessible, while for the larger
models they are encased, and therefore must be replaced as
assembly when defective.

Full- or Mid-range Speakers (for 26” and 32” models)

1. Refer to next figure.

2. Unplug connectors [1].

3. Remove screws [2].

2 1 2

G_16850_010.eps

Figure 4-14 Mid-range speakers

Tweeters (only for 32” models)

1. Refer to next figure.

2. Unplug connectors [1].

3. Remove screws [2].

110107

4.3.6 1080p Panel

1. Refer to next figure(s).

2. Unplug cables [a]. Be careful with the LVDS connectors as
they are very fragile.

3. Remove the fixation screws [b].

4. Take the board out (it hinges at the lower side).

5. Remove the screws [c] that fixate the top and bottom
shieldings, and remove the shieldings.

Note: Pay special attention not to damage the EMC foams.
Ensure that EMC foams are mounted correctly, especially
notice the large EMC foam “block” [d] at the bottom shielding.

b

c

a

c

c

b

c

2 1

Figure 4-15 Tweeters

Speaker box (for 37” and 42” models)

1. Refer to next figure.

2. Unplug connectors [1].

3. Remove screws [2].
When defective, replace the whole unit.

Figure 4-16 Tweeters

G_16850_011.eps

110107

1

H_16851_011.eps

G_16860_089.eps

150307

Figure 4-17 1080p panel

d

22

G_16860_088.eps

080307

150307

Figure 4-18 Bottom shielding 1080p panel

EN 14 LC7.2E LA4.

s
7

4.3.7 Main Supply Panel

Some models (37 and 42PFL3512D) come with a so-called IPB
(Integrated Power Board) power supply with integrated
backlight inverters. Disassembly is equal as described below.

1. Refer to next figure (is taken from the 32” model, but the
method is comparable for the other screen sizes).

2. Unplug cables [a].

3. Remove the fixation screws [b].

4. Take the board out (it hinges at the left side).

Mechanical Instructions

b (3x)

a

Figure 4-19 Main supply panel (32” model)

4.3.8 Small Signal Board (SSB)

1. Refer to next figure (is taken from the 32” model, but the
method is comparable for the other screen sizes).

2. Disconnect all cables [a] on the SSB.

3. Remove the T10 tapping screws [b] that hold the SSB. See
Figure “SSB removal”.

4. Remove the screws that hold the CINCH and HDMI
connectors at the connector panel.

5. Lift the SSB from the set.

a

a

G_16860_065.ep

01020

a a

Figure 4-20 SSB removal

b (3x)

b (2x)b (3x)

b (2x)

G_16860_074.eps

010207

Mechanical Instructions

EN 15LC7.2E LA 4.

4.3.9 LCD Panel

The disassembly method for the LCD panel differs per model
or screen size. The following description applies to the 32”
model, but for the other screen sizes, the method is similar.

1. Refer to next figure(s).

2. Unplug the connectors on the Main Supply Panel [a] and
the LED & IR board [c].

3. Unplug the connectors [d] from the loudspeakers.

f (1x)

g (2x)

a

4. Do NOT forget to unplug the LVDS connector [e] from the
SSB. Important: Be careful, as this is a fragile connector!

5. Remove T10 parker screw [b] that holds the Side I/O
module bracket.

6. Remove T10 parker screws [f] of the central sub-frame.

7. Remove LCD panel fixation screws [g] and lift the complete
central sub-frame from the set (incl. the PSU, SSB, and
Side I/O boards and wiring).

8. Lift the LCD panel [7] from the front cabinet.

e

g (2x)

f (3x)

b

d

f (2x)

d

c (1x)

G_16860_067.eps

310107

Figure 4-21 LCD panel 32” [1/2]

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse
order.

7

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.
Ensure that EMC foams are mounted correctly (one is
located above the LVDS connector on the display, between
the LCD display and the metal sub-frame).

Figure 4-22 LCD panel 32” [2/2]

G_16850_015.eps

110107

EN 16 LC7.2E LA5.

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 Service Tools

5.4 Error Codes

5.5 The Blinking LED Procedure

5.6 Software Upgrading

5.7 Fault Finding and Repair Tips

5.1 Test Points

In the chassis schematics and layout overviews, the test points
(Fxxx) are mentioned. In the schematics, test points are
indicated with a rectangular box around “Fxxx” or “Ixxx”, in the
layout overviews with a “half-moon” sign.
As most signals are digital, it will be difficult to measure
waveforms with a standard oscilloscope. 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: Colour bar signal.

• Audio: 3 kHz left, 1 kHz right.

5.2 Service Modes

The Service Mode feature is split into four parts:

• Service Default Mode (SDM).

• Service Alignment Mode (SAM).

• Customer Service Mode (CSM) and Digital Customer
Service Mode (DCSM).

• Computer Aided Repair Mode (ComPair).

SDM and SAM offer features, which can be used by the Service
engineer to repair/align a TV set. Some features are:

• A pre-defined situation to ensure measurements can be
made under uniform conditions (SDM).

• Activates the blinking LED procedure for error identification
when no picture is available (SDM).

• The possibility to overrule software protections when SDM
was entered via the Service pins.

• Make alignments (e.g. white tone), (de)select options,
enter options codes, reset the error buffer (SAM).

• Display information (“SDM” or “SAM” indication in upper
right corner of screen, error buffer, software version,
operating hours, options and option codes, sub menus).

The (D)CSM is a Service Mode that can be enabled by the
consumer. The CSM displays diagnosis information, which the
customer can forward to the dealer or call centre. In CSM
mode, “CSM”, is displayed in the top right corner of the screen.
The information provided in CSM and the purpose of CSM is to:

• Increase the home repair hit rate.

• Decrease the number of nuisance calls.

• Solved customers' problem without home visit.

ComPair Mode is used for communication between a computer
and a TV on I2C /UART level and can be used by a Service
engineer to quickly diagnose the TV set by reading out error
codes, read and write in NVMs, communicate with ICs and the
uP (PWM, registers, etc.), and by making use of a fault finding
database. It will also be possible to up and download the
software of the TV set via I2C with help of ComPair. To do this,
ComPair has to be connected to the TV set via the ComPair
connector, which will be accessible through the rear of the set
(without removing the rear cover).

5.2.1 General

Some items are applicable to all Service Modes or are general.
These are listed below.

Life Timer

During the life time cycle of the TV set, a timer is kept. It counts
the normal operation hours (not the Stand-by hours). The
actual value of the timer is displayed in SDM and CSM in a
decimal value. Every two soft-resets increase the hour by +1.

Software Identification, Version, and Cluster

The software ID, version, and cluster will be shown in the main
menu display of SDM, SAM, and CSM.
The screen will show: “AAAABCD X.YY”, where:

• AAAA is the chassis name: LC71 for analogue range (non­DVB), LC72 for digital range (DVB).

• B is the region indication: E= Europe, A= AP/China, U=
NAFTA, L= LATAM.

• C is the display indication: L= LCD, P= Plasma.

• D is the language/feature indication: 1= standard, H=
1080p full HD.

• X is the main version number: this is updated with a major
change of specification (incompatible with the previous
software version). Numbering will go from 1 - 9 and A - Z.
– If the main version number changes, the new version

number is written in the NVM.

– If the main version number changes, the default

settings are loaded.

• YY is the sub version number: this is updated with a minor
change (backwards compatible with the previous versions)
Numbering will go from 00 - 99.
– If the sub version number changes, the new version

number is written in the NVM.

– If the NVM is fresh, the software identification, version,

and cluster will be written to NVM.

Display Option Code Selection

When after an SSB or display exchange, the display option
code is not set properly, it will result in a TV with “no display”.
Therefore, it is required

to set this display option code after
such a repair.
To do so, press the following key sequence on a standard RC
transmitter: “062598” directly followed by MENU and “xxx”,
where “xxx” is a 3 digit decimal value of the panel type: see
column “Panel Code” in table “Option Codes OP1...OP7” (ch.

8), or see sticker on the side/bottom of the cabinet. When the
value is accepted and stored in NVM, the set will switch to
Stand-by, to indicate that the process has been completed.

Display Option

Code

39mm

040

PHILIPS

MODEL:

32PF9968/10

27mm

PROD.SERIAL NO:

AG 1A0620 000001

(CTN Sticker)

E_06532_038.eps

Figure 5-1 Location of Display Option Code sticker

During this algorithm, the NVM-content must be filtered,
because several items in the NVM are TV-related and not SSB­related (e.g. Model and Prod. S/N). Therefore, “Model” and
“Prod. S/N” data is changed into “See Type Plate”.
In case a call centre or consumer reads “See Type Plate” in
CSM mode, he needs to look to the side/bottom sticker to
identify the set, for further actions.

290107

Service Modes, Error Codes, and Fault Finding

EN 17LC7.2E LA 5.

5.2.2 Service Default Mode (SDM)

Purpose

Set the TV in SDM mode in order to be able to:

• Create a pre-defined setting for measurements to be
made.

• Override software protections.

• Start the blinking LED procedure.

• Read the error buffer.

• Check the life timer.

Specifications

Table 5-1 SDM default settings

Region Freq. (MHz) Default syst.

Europe (except France),

475.25 PAL B/G

AP-PAL/-Multi

France SECAM L

NAFTA, AP-NTSC 61.25 (channel 3) NTSC M

LATAM PAL M

• Set linear video and audio settings to 50%, but volume to
25%. Stored user settings are not affected.

• All service-unfriendly modes (if present) are disabled, since
they interfere with diagnosing/repairing a set. These
service unfriendly modes are:
– (Sleep) timer.
– Blue mute/Wall paper.
– Auto switch “off” (when there is no “ident” signal).
– Hotel or hospital mode.
– Child lock or parental lock (manual or via V-chip).
– Skipping, blanking of “Not favourite”, “Skipped” or

“Locked” presets/channels.

– Automatic storing of Personal Preset or Last Status

settings.

– Automatic user menu time-out (menu switches back/

OFF automatically.

– Auto Volume levelling (AVL).

How to Activate

To activate SDM, use one of the following methods:

• Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
(do not allow the display to time out between entries while
keying the sequence).

• Short one of the “Service” jumpers on the TV board during
cold start (see Figures “Service jumper”). Then press the
mains button (remove the short after start-up).
Caution: Activating SDM by shorting “Service” jumpers will
override the DC speaker protection (error 1), the General
I2C error (error 4), and the Trident video processor error
(error 5). When doing this, the service-technician must
know exactly what he is doing, as it could damage the
television set.

On Screen Menu

After activating SDM, the following screen is visible, with SDM
in the upper right corner of the screen to indicate that the
television is in Service Default Mode.

HHHHH A A A A B CD- X . Y Y
ERR XX XX XX XX XX
O P X X X X X X X X X X X X X X X X X X

SDM

G_16860_030.eps

260107

Figure 5-3 SDM menu

Menu explanation:

• HHHHH: Are the operating hours (in decimal).

• AAAABCD-X.YY: See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.

• SDM: The character “SDM” to indicate that the TV set is in
Service mode.

• ERR: Shows all errors detected since the last time the
buffer was erased. Five errors possible.

• OP: Used to read-out the option bytes. See “Options” in the
Alignments section for a detailed description. Seven codes
are possible.

How to Navigate

As this mode is read only, there is not much to navigate. To
switch to other modes, use one of the following methods:

• Command MENU from the user remote will enter the
normal user menu (brightness, contrast, colour, etc...) with
“SDM” OSD remaining, and pressing MENU key again will
return to the last status of SDM again.

• To prevent the OSD from interfering with measurements in
SDM, command “OSD” (“STATUS” for NAFTA and
LATAM) from the user remote will toggle the OSD “on/off”
with “SDM” OSD remaining always “on”.

• Press the following key sequence on the remote control
transmitter: “062596” directly followed by the OSD/i+
button to switch to SAM (do not allow the display to time out
between entries while keying the sequence).

How to Exit

Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or on the television set.
If you switch the television set “off” by removing the mains (i.e.,
unplugging the television), the television set will remain in SDM
when mains is re-applied, and the error buffer is not cleared.
The error buffer will only be cleared when the “clear” command
is used in the SAM menu.

SDMSDM

G_16860_027.eps

260107

Figure 5-2 Service jumper (SSB component side)

Note:

• If the TV is switched “off” by a power interrupt while in SDM,
the TV will show up in the last status of SDM menu as soon
as the power is supplied again. The error buffer will not be
cleared.

• In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-“ and
“CH-” together should leave Factory mode.

EN 18 LC7.2E LA5.

Service Modes, Error Codes, and Fault Finding

5.2.3 Service Alignment Mode (SAM)

Purpose

• To change option settings.

• To display / clear the error code buffer.

• To perform alignments.

Specifications

• Operation hours counter (maximum five digits displayed).

• Software version, error codes, and option settings display.

• Error buffer clearing.

• Option settings.

• Software alignments (Tuner, White Tone, and Audio).

• NVM Editor.

• ComPair Mode switching.

• Set the screen mode to full screen (all contents on screen
are viewable).

How to Activate

To activate SAM, use one of the following methods:

• Press the following key sequence on the remote control
transmitter: “062596" directly followed by the OSD/
STATUS/INFO/i+ button (it depends on region which
button is present on the RC). Do not allow the display to
time out between entries while keying the sequence.

• Or via ComPair.

After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.

LLLL L A AAABCD- X. YY
ERR XX XX XX XX XX
O P X X X X X X X X X X X X X X X X X X

C l e a r > Y e s
O p t i o n s >
T u n e r >
R G B A l i g n >
N V M E d i t o r >
C o m p a i r >
S W E V E N T S >

Figure 5-4 SAM menu

Menu explanation:

1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count Stand-by
hours.

2. AAAABCD-X.YY. See paragraph “Service Modes” ->
“General” -> “Software Identification, Version, and Cluster”
for the SW name definition.

3. SAM. Indication of the Service Alignment Mode.

4. ERR (ERRor buffer). Shows all errors detected since the
last time the buffer was erased. Five errors possible.

5. OP (Option Bytes). Used to read-out the option bytes. See
“Options” in the Alignments section for a detailed
description. Seven codes are possible.

6. Clear. Erases the contents of the error buffer. Select the
CLEAR menu item and press the MENU RIGHT key. The
content of the error buffer is cleared.

7. Options. Used to set the option bits. See “Options” in the
“Alignments” chapter for a detailed description.

8. Tuner. Used to align the tuner. See “Tuner” in the
“Alignments” chapter for a detailed description.

9. RGB Align. Used to align the White Tone. See “White
Tone” in the “Alignments” chapter for a detailed
description.

10. NVM Editor. Can be used to change the NVM data in the
television set. See also paragraph “Fault Finding and
Repair Tips” further on.

11. ComPaIr. Can be used to switch the television to “In
Application Programming” mode (IAP), for software

SAM

G_16860_031.eps

260107

uploading via ComPair. Read paragraph “Service Tools” ­> “ComPair”. Caution: When this mode is selected without
ComPair connected, the TV will be blocked. Remove the
AC power to reset the TV.

12. SW Events. Only to be used by development to monitor
SW behaviour during stress test.

How to Navigate

• In the SAM menu, select menu items with the MENU UP/
DOWN keys on the remote control transmitter. The
selected item will be indicated. When not all menu items fit
on the screen, use the MENU UP/DOWN keys to display
the next / previous menu items.

• With the MENU LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected sub menu.

• When you press the MENU button twice while in top level
SAM, the set will switch to the normal user menu (with the
SAM mode still active in the background). To return to the
SAM menu press the MENU button.

• Command “OSD/i+” key from the user remote will toggle
the OSD “on/off” with “SAM” OSD remaining always “on”.

• Press the following key sequence on the remote control
transmitter: “062596” directly followed by the MENU button
to switch to SDM (do not allow the display to time out
between entries while keying the sequence).

How to Store SAM Settings

To store the settings changed in SAM mode (except the
OPTIONS settings), leave the top level SAM menu by using the
POWER button on the remote control transmitter or the
television set.

How to Exit

Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.

Note:

• When the TV is switched “off” by a power interrupt while in
SAM, the TV will show up in "normal operation mode" as
soon as the power is supplied again. The error buffer will
not be cleared.

• In case the set is in Factory mode by accident (with “F”
displayed on screen), by pressing and hold “VOL-“ and
“CH-” together should leave Factory mode.

Service Modes, Error Codes, and Fault Finding

EN 19LC7.2E LA 5.

5.2.4 Customer Service Mode (CSM)

Purpose

The Customer Service Mode shows error codes and
information on the TV’s operation settings. A call centre can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps them to diagnose
problems and failures in the TV before making a service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.

Specifications

• Ignore “Service unfriendly modes”.

• Line number for every line (to make CSM language
independent).

• Set the screen mode to full screen (all contents on screen
are viewable).

• After leaving the Customer Service Mode, the original
settings are restored.

• Possibility to use “CH+” or “CH-” for channel surfing, or
enter the specific channel number on the RC.

How to Activate

To activate CSM, press the following key sequence on the
remote control transmitter: “123654” (do not allow the display
to time out between entries while keying the sequence).

Upon entering the Customer Service Mode, the following
screen will appear:

1 M O D E L : 3 2 P F L 5 5 2 2 D / 1
2 P R O D S / N : AG1A0712123456
3 S W I D : L C 7 1 E L 1 - 1 . x x
4 O P : X X X X X X X X X X X X X X X X X X X X X
5 C O D E S : X X XX XX XX XX
6 S S B : 3 1 39 127 12341
7 N V M : X X X X X X X X
8 F l a s h D a t a : X X . X X . X X . X X
9 L I F E T I M E R : L L L L L
1 0 T U N E R : W E A K / G O O D / S T R O N G
1 1 S Y S T E M : P A L / N T S C / S E C A M
1 2 S O U N D : M O N O / S T E R E O / N I C A M

1 3 H D A U : Y E S / N O
1 4 F O R M A T : X X X X X X X X

0

CS M

G_16860_032.eps

210207

Menu Explanation

1. MODEL. Type number, e.g. 42PFL7662/12. (*)

2. PROD S/N. Product serial no., e.g. SV1A0701000008. (*)

3. SW ID. Software cluster and version is displayed.

4. OP. Option code information.

5. CODES. Error buffer contents.

6. SSB. Indication of the SSB factory ID (= 12nc). (*)

7. NVM. The NVM software version no.

8. Flash Data. PQ (picture quality) and AQ (audio quality)
data version. This is a sub set of the main SW.

9. LIFE TIMER. Operating hours indication.

10. TUNER. Indicates the tuner signal condition: “Weak” when
signal falls below threshold value, “Medium” when signal is
at mid-range, and “Strong” when signal falls above
threshold value.

11. SYSTEM. Gives information about the video system of the
selected transmitter (PAL/SECAM/NTSC).

12. SOUND. Gives information about the audio system of the
selected transmitter (MONO/STEREO/NICAM).

13. HDAU. HDMI audio stream detection. “YES” means audio
stream detected. “NO” means no audio stream present.
Only displayed when HDMI source is selected.

14. FORMAT. Gives information about the video format of the
selected transmitter (480i/480p/720p/1080i).

15. HD SW ID. Software version of the 1080p full HD module
(when present).

16. Reserved.

17. Reserved.

18. Reserved.

(*) If an NVM IC is replaced or initialised, the Model Number,
Serial Number, and SSB Code Number must be re-written to
the NVM. ComPair will foresee in a possibility to do this.

How to Exit

To exit CSM, use one of the following methods:

• Press the MENU button twice, or POWER button on the
remote control transmitter.

• Press the POWER button on the television set.

Figure 5-5 CSM menu (example)

EN 20 LC7.2E LA5.

5.2.5 Digital Customer Service Mode (DCSM)

Purpose

The Digital Customer Service Mode shows error codes and
information on the IBO Zapper module (DVB reception part)
operation settings. The call centre can instruct the customer to
activate DCSM by telephone and read off the information
displayed. This helps the call centre to diagnose problems and
failures in the IBO Zapper module before making a service
call.The DCSM is a read-only mode; therefore, modifications
are not possible in this mode.

How to Activate

To activate the DCSM, put the television in its digital mode (via
the “A/D” button on the remote control).

1. Press the “Digital Menu” button on the remote control to
activate the digital user menu (called “Setup”).

2. Activate the “Information” sub menu (via the “down” and
“right” cursor buttons).

3. In the “Information” sub menu, press the following key
sequence on the remote control to activate the DCSM:
“GREEN RED YELLOW 9 7 5 9” (do not allow the display
to time out between entries while keying this sequence).
Then, the “Service menu” will appear (see figures below).

Alternative method to activate DCSM: press key sequence
“123654” on the remote control transmitter while in digital mode
(do not allow the display to time out between entries while
keying the sequence). Then, the “Service menu” will appear
(see figures below).

Menu explanation

Figure 5-6 DCSM menu - 1

Service Modes, Error Codes, and Fault Finding

Figure 5-8 DCSM menu - 3

1. Hardware version: This indicates the version of the IBO
Zapper module hardware.

2. Application SW: The application software version.

3. NOR Version: The NOR Flash image software version

4. Digital Frequency: The digital frequency that the set is
tuned to.

5. Bit Error Rate: The error rate measured before the error
correction algorithm circuitry. (this value gives an
impression of the received signal)

6. Tuner AGC: Tuner AGC value.

7. COFDM Lock: Indication if COFDM decoder is locked.

8. AFD Status: Status of the Active Picture Format
Descriptor.

9. Terrestrial Delivery System Parameters:
– Bandwidth: Bandwidth of the received signal.
– Constellation Pattern: Displays the signal

constellation.
– Alpha Value: Displays the Alpha Value.
– FEC Scheme: Displays the Forward Error Correcting

Scheme
– Guard Interval: Displays the value for the Guard

Interval.
– Transmission Mode: Displays the Transmission

Mode.

10. Audio Comp Type: Type of detected audio stream.

E_14970_040.eps

090904

11. MHEG Present:

12. CIM Card Present: Indicates if CIM card is present or not.

How to exit

Press the BLUE button on the Remote Control to exit DCSM.

Indicates if MHEG is present or not.

E_14970_042.eps

090904

Figure 5-7 DCSM menu - 2

E_14970_041.eps

100904

Service Modes, Error Codes, and Fault Finding

EN 21LC7.2E LA 5.

5.3 Service Tools

5.3.1 ComPair

Introduction

ComPair (Computer Aided Repair) is a Service tool for Philips
Consumer Electronics products. and offers the following:

1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short and effective way.

2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART 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 uP
is working) and all repair information is directly available.

4. ComPair features TV software upgrade possibilities.

Specifications

ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The (new) ComPair II interface box is connected to the PC via
an USB cable. For the TV chassis, the ComPair interface box
and the TV communicate via a bi-directional cable via the
service connector(s).
The ComPair fault finding program is able to determine the
problem of the defective television, by a combination of
automatic diagnostics and an interactive question/answer
procedure.

How to Connect

This is described in the chassis fault finding database in
ComPair.

TO TV

RS232 /UART

G_06532_036.eps

TO

UART SERVICE

CONNECTOR

260107

TO

ComPair II

RC in

Optional

Switch

Power ModeLink/

Activity

HDMI

2

I

C only

RC out

I2C SERVICE
CONNECTOR

Multi

function

PC

OR

2

C

I

ComPair II Developed by Philips Brugge

Optional power

5V DC

Figure 5-9 ComPair II interface connection

Caution: It is compulsory to connect the TV to the PC as

shown in the picture above (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!

How to Order

ComPair II order codes:

• ComPair II interface: 3122 785 91020.

• ComPair32 CD (update): 3122 785 60160.

• 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

5.3.2 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. Thus to determine if LVDS, RGB, and sync
signals are okay.

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.

How to Connect

Connections are explained in the user manual, which is packed
with the tool. The LVDS cables included in the package cover
most chassis. For some chassis, a separate cable must be
ordered.

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, covering
chassis BJx, EJx, FJx and LC4.1): 3122 785 90671.

• LVDS tool Service Manual: 3122 785 00810.

• LVDS cable 20p/DF -> 20p/DF (standard with tool):
3122 785 90731.

• LVDS cable 31p/FI -> 31p/FI (standard with tool):
3122 785 90662.

For other chassis, a separate LVDS cable must be ordered.
Refer to table “LVDS cable order number” for an overview of all
available cables.

Table 5-2 LVDS cable order number

Chassis LVDS cable order number Remarks

BJ2.4 3122 785 90662

BJ2.5 3122 785 90662

BJ3.0 3122 785 90662

BJ3.1 3122 785 90662

EJ2.0 3122 785 90662

EJ3.0 3122 785 90662

EL1.1 3122 785 90662 1 / 3122 785 90821

FJ3.0 3122 785 90662

FTL2.4 3122 785 90662

LC4.1 3122 785 90731 1 / 3122 785 90851

LC4.3 3122 785 90821

LC4.31 3122 785 90821

LC4.41 3122 785 90662

LC4.8 3122 785 90662

LC4.9 3122 785 90662

LC7.x t.b.d.

JL2.1 3122 785 90861

1

1

1

1

1

1

1

1, 2

1, 2

/ 3122 785 90851 Only for 26 & 32” sets.

1, 2

/ 3122 785 90851

1, 2

/ 3122 785 90851 MFD variant only.

Notes:

1. Included in LVDS tool package.

2. Pins “27” and “28” must be grounded or not connected.

EN 22 LC7.2E LA5.

Service Modes, Error Codes, and Fault Finding

5.4 Error Codes

5.4.1 Introduction

Error codes are required to indicate failures in the TV set. In
principle a unique error code is available for every:

• Activated protection.

• Failing I2C device.

• General I2C error.

• SDRAM failure.

The last five errors, stored in the NVM, are shown in the
Service menu’s. This is called the error buffer.
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.
An error will be added to the buffer if this error differs from any
error in the buffer. The last found error is displayed on the left.
An error with a designated error code may never lead to a
deadlock situation. This means that it must always be
diagnosable (e.g. error buffer via OSD or blinking LED
procedure, ComPair to read from the NVM).
In case a failure identified by an error code automatically
results in other error codes (cause and effect), only the error
code of the MAIN failure is displayed.

Example: In case of a failure of the I2C bus (CAUSE), the error
code for a “General I2C failure” and “Protection errors” is
displayed. The error codes for the single devices (EFFECT) is
not displayed. All error codes are stored in the same error
buffer (TV’s NVM) except when the NVM itself is defective.

5.4.2 How to Read the Error Buffer

You can read the error buffer in 3 ways:

• On screen via the SAM/SDM/CSM (if you have a picture).
Example:
– ERROR: 0 0 0 0 0 : No errors detected
– ERROR: 6 0 0 0 0 : Error code 6 is the last and only

detected error

– ERROR: 9 6 0 0 0 : Error code 6 was detected first and

error code 9 is the last detected (newest) error

• Via the blinking LED procedure (when you have no
picture). See “The Blinking LED Procedure”.

•Via ComPair.

5.4.3 Error Codes

In case of non-intermittent faults, write down the errors present
in the error buffer and clear the error buffer before you begin
the repair. This ensures that old error codes are no longer
present.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
and not the actual cause of the problem (for example, a fault in
the protection detection circuitry can also lead to a protection).

Table 5-3 Error code overview

Error

1)

code

0No error.

1 DC Protection of speakers.

2 +12V protection error. 12V missing or "low".

3 Reserved.

4 General I2C er ror. note 2

5 Trident Video Processor

6 I2C error while communicat ing

7 I2C error while communicat ing

8 I2C error while communicat ing

9 I2C error communicating with

10 SDRAM defective. 7204

11 I2 C error while communicating

12 I2 C error while communicating

13 DVB HW communication

14 SDRAM defective. 7205

15 Reserved.

16 Reserved.

17 Reserved.

18 I2 C error while communicating

19 I2 C error while communication

Description Item nr. Remarks

communication error.

with the NVM.

with the Tuner.

with the IF Demodulator.

the Sound Processor.

with the HDMI IC.

with the MOJO PNX8314.

error.

with the iBoard processor.

with 1080p bolt-on module.

7202 When Trident IC is

defective, error 10 and 14
might also be reported.
Trident communicates via
parallel bus, not via the I2C
bus. The I2C bus of Trident
is only used in ComPair
mode.

7315 The TV will not start-up due

to critical data not available
from the NVM, but the LED
will blink the error code.

1101

7113

7411

7817

7G00 if applicable

7F01,

if applicable
7K00,
7G00

if applicable

if applicable

Notes

1. Some of the error codes reported are depending on the
option code configurations.

2. This error means: no I2C device is responding to the
particular I2C bus. Possible causes: SCL/SDA shorted to
GND, SCL shorted to SDA, or SCL/SDA open (at uP pin).
The internal bus of the Trident platform should not cause
the entire system to halt as such an error can be reported.

5.4.4 How to Clear the Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM menu:
– To enter SAM, press the following key sequence on the

remote control transmitter: “062596” directly followed
by the OSD/i+ button (do not allow the display to time
out between entries while keying the sequence).

– Make sure the menu item CLEAR is selected. Use the

MENU UP/DOWN buttons, if necessary.

– Press the MENU RIGHT button to clear the error

buffer. The text on the right side of the “CLEAR” line will
change from “CLEAR?” to “CLEARED”

• If the contents of the error buffer have not changed for 50
hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the mains from the
television set, the error buffer is not reset.

Service Modes, Error Codes, and Fault Finding

EN 23LC7.2E LA 5.

5.5 The Blinking LED Procedure

5.5.1 Introduction

The software is capable of identifying different kinds of errors.
Because it is possible that more than one error can occur over
time, an error buffer is available, which is capable of storing the
last five errors that occurred. This is useful if the OSD is not
working properly.

Errors can also be displayed by the blinking LED procedure.
The method is to repeatedly let the front LED pulse with as
many pulses as the error code number, followed by a period of

1.5 seconds in which the LED is “off”. Then this sequence is
repeated.

Example (1): error code 4 will result in four times the sequence
LED “on” for 0.25 seconds / LED “off” for 0.25 seconds. After
this sequence, the LED will be “off” for 1.5 seconds. Any RC5
command terminates the sequence. Error code LED blinking is
in red colour.

Example (2): the content of the error buffer is “12 9 6 0 0”
After entering SDM, the following occurs:

• 1 long blink of 5 seconds to start the sequence,

• 12 short blinks followed by a pause of 1.5 seconds,

• 9 short blinks followed by a pause of 1.5 seconds,

• 6 short blinks followed by a pause of 1.5 seconds,

• 1 long blink of 1.5 seconds to finish the sequence,

• The sequence starts again with 12 short blinks.

5.5.2 Displaying the Entire Error Buffer

Additionally, the entire error buffer is displayed when Service
Mode “SDM” is entered. In case the TV set is in protection or
Stand-by: The blinking LED procedure sequence (as in SDM­mode in normal operation) must be triggered by the following
RC sequence: “MUTE” “062500” “OK”.
In order to avoid confusion with RC5 signal reception blinking,
this blinking procedure is terminated when a RC5 command is
received.

To erase the error buffer, the RC command “MUTE” “062599

“OK” can be used.

5.6 Software Upgrading

In this chassis, three SW “stacks” are used:

• TV mains SW (processor and processor NVM).

• Digital TV SW (IBO Zapper).

• 1080p Panel SW (if present, depends on execution).

5.6.1 TV Main SW Upgrade

For instructions on how to upgrade the TV Main software, refer
to ComPair.

5.6.2 “Digital TV” Software Upgrade

How to Upgrade Philips “Digital TV” Software (IBO Zapper):

Preparation of the Memory Device for Software Upgrade

For the procedure you will require:

1. A personal computer with web browsing capability.

2. An archive utility that supports the ZIP-format (e.g. Winzip
for Windows).

3. A CompactFlash PC Card Adapter (Type II).

4. A CompactFlash (Type I) portable memory card for
insertion into the PC Card Adapter. Philips recommends
using Compact Flash (CF) portable memory cards with
their respective PC Card Adapters (Sandisk or Kingston)
with memory sizes of up to 256MB. Philips does not
guarantee that other types of portable memory cards and
their respective PC Card Adapters, including multi-card PC
Card Adapters work on Philips Digital TV.
Note: Only FAT16-formatted portable memory is
supported. NTFS & FAT32 are not supported.

Copying of Software Image Files to the Flash Device

Copy the appropriate “FCL.img” and “IBOZ.img” to the root
directory of the flash device.

Verifying the Current Version of the TV Software

Before you start the software upgrade procedure, it is advised
to check what the current TV software is. The current TV
software version can be seen in the “System software” menu.

1. First press the “A/D” key and then the “DIGITAL MENU”
key on the remote controller to access the “Setup” menu.

2. Access the “Information” menu.

3. Access the “Current software version” menu.

Example:

The menu shows “IdtvZapper_HW260.256_SW2.0.24”. This
means that the hardware version is “260.256” and the software
version is “2.0.24”.

G_16221_001.eps

241006

Figure 5-10 Current software version

EN 24 LC7.2E LA5.

Service Modes, Error Codes, and Fault Finding

Software Upgrade Procedure

1. Power ON your TV with the power switch at the side of the
TV. Put your TV ON by using the remote controller if the TV
is in Stand-by.

2. Make sure that it is in “Digital” mode (via “A/D” button).

3. Make sure that your TV is not in Stand-by. Power OFF your
TV with the power switch of the TV.

4. Remove the Conditional Access Module (if any) from the
CI-slot.

5. Insert the PC Card Adapter with the portable memory card
containing the software upgrade files.

6. Switch ON your TV with the power switch at the side of the
TV.

7. At start-up, the TV will scan the CI slot until it finds the
update content. The TV will automatically go to the
upgrade mode. After a few seconds it will display the status
of the upgrade procedure.

Warnings:

Do NOT remove the memory card or the PC card adapter
during the software upgrade procedure.
In case of a power drop during the upgrade procedure, don’t
remove the portable memory from the TV. The TV will continue
the upgrade as soon as the power comes back.

Example: At start-up of the TV, the current software is erased.

G_16221_005.eps

241006

Figure 5-14 Upgrade ready

When the software upgrade has been successful, switch OFF
the TV, remove the PC Card Adapter, and restart the TV with
the Power switch at the side of the TV.
The TV will now start up with the new software.

Verifying that the Software Has Been Upgraded Successfully

Verify that the software is upgraded to the new version by
following the procedure outlined in the section “Verifying the
current version of the TV software”.

G_16221_002.eps

241006

Figure 5-11 Erasure of the software

If the erasure is successful, the programming will start.

G_16221_003.eps

241006

Figure 5-12 Programming of the software

Example: The programming is completed when the progress

bar reaches the 100% mark.

5.6.3 1080p Panel SW Upgrade

To upgrade the SW on the 1080p panel:

1. Remove the back cover of the TV.

2. Connect the ComPair UART cable to the UART connector
on the 1080p panel (refer to next figure).

3. Follow the instructions in ComPair.

DUAL LVDS

FLASH MEMORY

SINGLE LVDS + I2C

12V

UART

G_16860_090.eps

150307

G_16221_004.eps

241006

Figure 5-13 Programming complete

The TV will reset and the screen will go blank, after a few
seconds a dialogue box will occur to inform you that the current
module inserted in the CI slot is not recognized. This is normal
as the slot only recognizes a Conditional Access Module during
normal operation.

Example: The following dialogue box will appear after the TV is
upgraded successfully:

Figure 5-15 1080p connection overview

Service Modes, Error Codes, and Fault Finding

EN 25LC7.2E LA 5.

5.7 Fault Finding and Repair Tips

Notes:

• It is assumed that the components are mounted correctly
with correct values and no bad solder joints.

• Before any fault finding actions, check if the correct options
are set.

5.7.1 NVM Editor

In some cases, it can be convenient if one directly can change
the NVM contents. This can be done with the “NVM Editor” in
SAM mode. With this option, single bytes can be changed.

Caution:

• Do not change the NVM settings without
understanding the function of each setting, because
incorrect NVM settings may seriously hamper the
correct functioning of the TV set!

• Always write down the existing NVM settings, before
changing the settings. This will enable you to return to the
original settings, if the new settings turn out to be incorrect.

Table 5-4 NVM editor overview

Hex Dec Description

.ADR 0x000A 10 Existing value

.VAL 0x0000 0 New value

.Store Store?

5.7.2 Load Default NVM Values

Alternative method (1):

1. Go to SAM.

2. Select NVM Editor.

3. Select ADR (address) to 1 (dec).

4. Change the VAL (value) to 170 (dec).

5. Store the value.

6. Do a hard reset to make sure new default values took
place.

Alternative method (2):

It is also possible to upload the default values to the NVM with
ComPair in case the SW is changed, the NVM is replaced with
a new (empty) one, or when the NVM content is corrupted.
After replacing an EEPROM (or with a defective/no EEPROM),
default settings should be used to enable the set to start-up and
allow the Service Default Mode and Service Alignment Mode to
be accessed.

5.7.3 Start-up/Shut-down Flowcharts

Important note for DVB sets:

• When you put a DVB set into Stand-by mode with an RC,
the set will go to “Semi Stand-by” mode for 5 minutes. This,
to facilitate “Off the Air download” (OAD). If there is no
activity within these 5 minutes, the set will switch to Stand­by mode. In “Semi Stand-by” mode, the LCD backlight and
Audio Amplifier are turned “off” but other circuits still work
as normal. The customer might think the set is in Stand-by.
However, in real Stand-by mode, only the uP and the NVM
are alive and all other circuits are switched “off”.

• If you press the mains switch at the local key board in a
DVB set, the set will switch to Stand-by mode.

It is possible to download default values automatically into the
NVM in case a blank NVM is placed or when the NVM first 20
address contents are "FF". After the default values are
downloaded, it is possible to start-up and to start aligning the
TV set. To initiate a forced default download the following
action has to be performed:

1. Switch “off” the TV set with the mains cord disconnected
from the wall outlet (it does not matter if this is from "Stand­by" or "Off" situation).

2. Short-circuit the SDM jumpers on the SSB (keep short
circuited).

3. Press “P+” or “CH+” on the local keyboard (and keep it
pressed).

4. Reconnect the mains supply to the wall outlet.

5. Release the “P+” or “CH+” when the set is “on” or blue LED
is blinking.

When the downloading has completed successfully, the set
should be into Stand-by, i.e. red LED on.

On the next pages you will find start-up and shut-down
flowcharts, which might be helpful during fault finding.
Please note that some events are only related to PDP sets,
and therefore not applicable to this LCD chassis.

EN 26 LC7.2E LA5.

Start Up

Service Modes, Error Codes, and Fault Finding

Error 6 - NVM

[Protection]

Standby Normal Mode

(RED LED)

Port Assignment in STANDBY

Wait for RC key or

Wake up event

AC ON

+5VSTBY & +3V3STBY Available (1)

160ms

RENEAS POR by +3VSTBY (2)

STANDBYn = LOW

InitCold Component:

1. Check SDM port.

- If SDM pin = LOW and NVM first 20Byte =
0xFF, reload Software default NVM value.

2. Check Panel port.

- If Panel Pin = LOW and check slave address
0x65 = 0xA5, Enter Panel Mode.

No

Last status is ON?

Yes

Read NVM completed.

STOP I²C activities.

LED = BLUE for Normal mode

LED = RED for Recording mode

BLOCK RC Key

M16C RST_H = HIGH

RST_HDMI = LOW

RST_AUD = LOW
RESET_n = LOW

LCD_PWR_ON = LOW

SDI PDP => CTRL_DISP1 = LOW

(1) +5VSTBY to be measured
at PDTC114ET (item 7322)

(2) to be measured at pin 4
of BD45275G (item 7312)

User wake up the sets

in DVB recording mode

LCD_PWR_ON = HIGH

(Same function as CTRL-DISP2)

SDI PDP => CTRL_DISP1 = LOW

20ms

1000ms to

1500ms

Wait for 20 ms

Switch ON LVDS Signal

Init. Warm Component

(For software)

Error 2

[Protection]

Notes:

---------

1. LC07 TV software only start communication with IBOZ once
receive the INT message from IBOZ.

For DVB Sets only (Semistandby)
Recording mode

SDI PDP => CTRL_DISP1 = HIGH

Recording Mode finished

Software Shutdown:

WP for NVM

Port Assignment in STANDBY

Wait for 100ms

Time out = 2000ms

Yes

500ms

100ms

Error 7

Error 8

Error 9

Error 11

1700ms

Error 3

[Protection]

STANDBYn = HIGH

(Same function as CTRL-DISP3)

Wait for 500ms

Is Power Down =

No

BL_ADJ = HIGH (100% Duty Cycle)

HIGH?

Yes

Wait for 100ms

M16C RST_H to LOW

RST_HDMI = HIGH

RST_AUD = HIGH
RESET_n = HIGH

Enable Power Down INT

Enable DC_PROT INT

Initialise Tuner

Initialise IF Demodulator, Afric

TDA9886T

Initialise Micronas

Mute Audio

Initialise HDMI, Sil9023

Initialise Trident CX

DPTVInit( )

Initialise FHP Panel

* For FHP PDP Sets only

Initialise Bolt-ON

* For iTV, 1080P, Ambi Light

For LCD:

BL_ON_OFF = HIGH

* BL_ADJ keep 100% for 3000ms

before dimming.

Blank Picture

Picture Mode Setup & Detection

unBlank Picture &

UnMute Audio

No

Error 5 - Trident

[Protection]

Error 10 – SDRAM 7204

[Protection]

Error 14 – SDRAM 7205

[Protection]

Error 17 – AmbiLight

Error 18 – iTV iFace

End

For PDP:

3000ms delay

STANDBYn = LOW

Standby

Normal Mode

Enable RC Key

DVB recording mode

Figure 5-16 Start-up flowchart

Error 19 – 1080P

G_16860_070.eps

220207

Service Modes, Error Codes, and Fault Finding

EN 27LC7.2E LA 5.

SEMISTANDBY/ STANDBY

300ms

20ms

Start

Mute Audio

BL_ADJ stop dimming

(PWM duty cycle 100%)

BL_ON_OFF = LOW

Wait 300ms

Switch OFF LVDS

Wait 20ms

LCD_PWR_ON = LOW

LED = RED No

For DVB Sets only (Semistandby)

Wait for 3000ms

Except power tact switch

SDI PDP => CTRL_DISP1 = HIGH

Off Air Downloading/ Recording Mode

IBOZ send shut down command

40ms

Software Shutdown:

Standby using

“power key”

Yes

LED = NO LED

for Standby soft mode

Disable Power Down INT &

DC_PROT_INT

BL_ADJ = LOW

(PWM duty cycle 0%)

WriteProtect for NVM

Port Assignment in STANDBY

STANDBYn = LOW

Sets go to standby here

Blocking for the next start up to ensure
power supply discard properly.

Total = 360ms

Wait for 3000ms

End

Figure 5-17 Semi Stand-by/Stand-by flowchart

G_16860_071.eps

220207

EN 28 LC7.2E LA5.

Service Modes, Error Codes, and Fault Finding

Power Down INT:

AC OFF or Transient INT

Start

Notes:

1. Power Down INT will be based on fall edge triggering

2. +3V3STBY will stay for 15ms, software must perform
WriteProtect for NVM within 15ms.

Avoid false trigger

No

End

Poll the Power Down

INT for 5 times

Yes

Mute Audio & VIdeo

WriteProtect for NVM

STANDBYn = LOW

Wait 5000 ms

Re-start: Start up

End

DC_PROT INT

Avoid false trigger

No

End

Error 1

[Protection]

Start

is DC_PROT = LOW

for 3 sec?

Yes

Mute Audio & VIdeo

Log Error Code

WriteProtect for NVM

STANDBYn = LOW

End

G_16860_072.eps

220207

Figure 5-18 Power Down & DC_PROT flowchart

Block Diagrams, Test Point Overviews, and Waveforms

6. Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 26” & 32”

29LC7.2E LA 6.

CN2
DISPLAY SUPPLY

1. +24V

2. +24V

3. +2 4V

4. +24V

5. +24V

6. GND

7. GND

8. GN D

9. GND

10. GND

11. DIM

12. BL-ON

13. PWM

14. N.C.

CN3
DISPLAY SUPPLY

1. +24V

2. +24V

3. +2 4V

4. +24V

5. +24V

6. GND

7. GND

8. GND

9. GND

10. GND

11. N.C.

12. N.C.

WIRING 26”- 32” LCD

CN7
CONTROL:

1. -12VA

2. +12VA

3. GN D

4. 5.2VS

5. 5.2VS

6. 5.2VS

7. GND

8. GN D.

9. GND

CN6
CONTROL:

1. BL-DIM

2. PG

3. BL-ON

4. GND

5. N.C.

6. PSON

7. N.C.

8. 12 V

14P

CN2

8521

INVERTER

(STYLING ME7)

14P

CN2

12P

CN3

MAIN SUPPLY

(1005)

ONLY USED

FOR LPL PANEL

CN6

CN7

LCD DISPLAY

(1004)

LV DS

30P

9P

8P

8C01

8520

8P11

B

8735

SSB

9P

1C01

8P

1P11

8G51

30P

1G51

7P

1M20

11P

1304

4P

1735

12P

CN3

INVERTER

RIGHT SPEAKER

(5200)

CN1

2P3

INLET

8002

TUNER

8191

8192(UK)

8304

8735

LEFT SPEAKER

(5200)

D

11P

8M20

SIDE I/O

(1116)

1304

J

3P

7P

1M01

1M20

IR/LED/LIGHT
SENSOR

(1112)

G_16860_034.eps

8M01

(1114)

KEYBOARD CONTROL

E

3P

1M01

180707

Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 37” & 42”

WIRING 37”- 42” LCD

(STYLING ME7)

8521

8520

8C01

8P11

30LC7.2E LA 6.

LCD DISPLAY

(1004)

LVD S

30P

8G51

9P

X412

8P

X406

14P

X404

12P

X403

MAIN SUPPLY

(1005)

14P

CN2

9P

INVERTER INVERTER

B

2P3

X101

8002

1C01

SSB

8P

1P11

30P

1G51

7P

1M20

11P

1304

4P

1735

8735

D

SIDE I/O

(1116)

12P

CN3

KEYBOARD CONTROL

E

(1114)

RIGHT SPEAKER

INLET

8191

8192(UK)

LEFT SPEAKER

8304

11P

3P

1M01

1304

8M01

8M20

J

7P

1M01

1M20

IR/LED/LIGHT
SENSOR

(1112)

G_16860_094.eps

3P

180707