Philips LC4.8E Schematic

Colour Television Chassis

LC4.8E

AA

E_14710_000.eps

240604

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis
Overview 2

2. Safety Instructions, Warnings, and Notes 5

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Fault Finding 14

6. Block Diagrams, Testpoint Overviews, and

Waveforms

Wiring Diagram 37” LCD 23
Block Diagram Video 24
Block Diagram Audio 25
Block Diagram Supply 37” 26
Testpoint Overview Small Signal Board 27
I2C IC Overview 28
Supply Voltage Overview 29

7. Circuit Diagrams and PWB Layouts Diagram PWB
LCD Supply 37”: Mains Filter + Standby (A1) 30 32-33
LCD Supply 37”: Supply (A2) 31 32-33
SSB: Tuner and VIF (B1) 34 56-65
SSB: Hercules (B2) 35 56-65
SSB: Sync Interface (B3) 36 56-65
SSB: Audio Delay Line (Reserved) (B4) 37 56-65
SSB: Audio Processing (B5) 38 56-65
SSB: DC-DC Converter (B6) 39 56-65
SSB: Diversity Tables B1-B6 40
SSB: Scaler (B7) 41 56-65
SSB: Scaler (B8) 42 56-65
SSB: Scaler Interface (B9) 43 56-65
SSB: SDRAM (B10) 44 56-65
SSB: Flash / Control (B11) 45 56-65
SSB: MUX-Sync Interface (B13) 46 56-65
SSB: Digital I/O (B14) 47 56-65
SSB: SCART Analogue I/O (B15) 48 56-65
SSB: Top Connectors (B16) 49 56-65

©

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.

SSB: Side Connectors (B17) 50 56-65
SSB: ADC (B18) 51 56-65
SSB: Columbus (B19) 52 56-65
SSB: EPLD (B20) 53 56-65
SSB: EPLD (B21) 54 56-65
SSB: Diversity Tables B9-B21 55
Side I/O Panel (D) 66 67
Control Board (E) 68 69
LED Panel (J) 70 71
Standby Audio Panel: Connections (SA1) 72 75-77
Standby Audio Panel: Standby (SA2) 73 75-77
Standby Audio Panel: Audio (SA3) 74 75-77

8. Alignments 79

9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 84
Abbreviation List 92
IC Data Sheets 95

10. Spare Parts List 99

11. Revision List 106

Published by BB 0566 TV Service Printed in the Netherlands Subject to modification EN 3122 785 15420

EN 2 LC4.8E AA1.

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, IPS
Screen size : 37” (94 cm), 16:9
Resolution (HxV pixels) : 1366 x 768
Contrast ratio : 600:1
Light output (cd/m
Response time (ms) : 8
Viewing angle (HxV degrees) : 176x176
Tuning system : PLL
TV Colour systems : PAL B/G, D/K, I

Video playback : NTSC M/N 3.58, 4.43

Supported computer formats : VGA (640x480)

Supported video formats : 640x480i - 1fH

Presets/channels : 100/125 presets
Tuner bands : VHF

2

) : 550

: SECAM B/G, D/K, L/L’

: PAL B/G
: SECAM L/L’

: MAC (640x480)
: SVGA (800x600)
: XVGA (1024x768)
: WXGA (1280x768)

: 720x576i - 1fH
: 640x480p - 2fH
: 720x576p - 2fH
: 1920x1080i - 2fH

: UHF
: S-band

: Hyper-band

1.2 Connection Overview

Note: The following connector colour abbreviations are used

(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, and Ye= Yellow.

1.2.1 Side I/O connections

AudioS-Video Video

LR

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Figure 1-1 Side I/O connections

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

Cinch: Video CVBS - In, Audio - In

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

Mini Jack: Audio Head phone - Out

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

1.2.2 Rear Connections

DVI

18
916
17

AUDIO

C1 C2

C5

24

C3 C4

/ 75 ohm j

PP

/ 75 ohm j

PP

/ 75 ohm jq

PP

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

AERIAL IN

EXT 2 EXT 1

1.1.2 Sound

Sound systems : FM-mono

: FM-stereo B/G
: NICAM B/G, D/K, I, L
: AV Stereo

Maximum power (W

) : 2 x 15

RMS

1.1.3 Miscellaneous

Power supply:

- Mains voltage (V

) : 220 - 240

AC

- Mains frequency (Hz) : 50 / 60

Ambient conditions:

- Temperature range (qC) : +5 to +40

- Maximum humidity : 90% R.H.

Power consumption

- Normal operation (W) : | 450

- Stand-by (W) : < 2

Dimensions (WxHxD cm) : 110.5 x 61 x 9.7

Weight (kg) : 30

DVIDVI-I

Audio In

EXT 2 UART I2CEXT 1

ComPair

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Figure 1-2 Rear I/O

Aerial - In

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

Mini Jack: PC-Audio - In

1 -Ground Gnd H
2 -Audio L 0.5 V
3 -Audio R 0.5 V

Service connector (ComPair)

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

2

2

/ 10 kohm j

RMS

/ 10 kohm j

RMS

C Data (0 - 5 V) jk
C Clock (0 - 5 V) j

3 -Ground Gnd H

Service connector (UART)

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

Technical Specifications, Connections, and Chassis Overview

EN 3LC4.8E AA 1.

DVI-I: Digital/Analogue Video - In

18
916

17

C1 C2

C5

24

C3 C4

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Figure 1-3 DVI-I connector

1 -D2- j
2 -D2+ j
3 -Shield Gnd H
4 -D4- j
5 -D4+ j
6 -DDC_SCL DDC clock k
7 -DDC_SDA DDC data jk
8 -V-sync 0 - 5 V j
9 -D1- j
10-D1+ j
11 - Shield Gnd H
12-D3- j
13-D3+ j
14 - +5V j
15 - Ground Gnd H
16 - HPD Hot Plug Detect j
17-D0- j
18-D0+ j
19 - Shield Gnd H
20 - D5- j
21 - D5+ j
22 - Shield Gnd H
23 - CLK+ j
24 - CLK- j
C1 - Video Red 0.7 V
C2 - Video Green 0.7 V
C3 - Video Blue 0.7 V

/ 75 ohm j

PP

/ 75 ohm j

PP

/ 75 ohm j

PP

C4 - H-sync 0 - 5 V j
C5 - Ground Gnd H

EXT2: Video Y/C - in, CVBS - In/Out, Audio - In/Out

21

20

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2

1

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Figure 1-5 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

/ 10 kohm j

RMS

7 - n.c.
8 - Function Select 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Ground Green Gnd H
10 - n.c.
11 - n.c.
12 - n.c.
13 - Ground Red Gnd H
14 - Ground Gnd H
15 - YC/C - in 0.7 V
16 - n.c.

/ 75 ohm j

PP

17 - Ground Video Gnd H
18 - Ground Gnd H
19 - Video Mon. CVBS 1 V
20 - YC/Y - in 0.7 V
21 - Shield Gnd H

/ 75 ohm k

PP

/ 75 ohm j

PP

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

21

20

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2

1

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Figure 1-4 SCART connector

1 -Audio R 0.5 V
2 -Audio R 0.5 V
3 -Audio L 0.5 V
4 -Ground Audio Gnd H

/ 1 kohm k

RMS

/ 10 kohm j

RMS

/ 1 kohm k

RMS

5 -Ground Blue Gnd H
6 -Audio L 0.5 V
7 -Video Blue 0.7 V
8 -Function Select 0 - 2 V: INT

/ 10 kohm j

RMS

/ 75 ohm j

PP

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Ground Green Gnd H
10 - n.c.
11 - Video Green 0.7 V
12 - n.c.

/ 75 ohm j

PP

13 - Ground Red Gnd H
14 - Ground Gnd H
15 - Video Red 0.7 V

/ 75 ohm j

PP

16 - Status/FBL 0 - 0.4 V: INT

1 - 3 V: EXT / 75 ohm j
17 - Ground Video Gnd H
18 - Ground FBL Gnd H
19 - Video Terr. CVBS 1 V
20 - Video CVBS/Y 1 V

/ 75 ohm k

PP

/ 75 ohm j

PP

21 - Shield Gnd H

EN 4 LC4.8E AA1.

1.3 Chassis Overview

AUDIO STANDBY

SA

PANEL

Technical Specifications, Connections, and Chassis Overview

LCD PANEL

SMALL

B

SIGNAL BOARD

SIDE CONTROL

E

BOARD

Figure 1-6 Chassis overview

POWER SUPPLY

PANEL

SIDE I/O PANEL

LED PANEL

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A

D

J

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Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

EN 5LC4.8E AA 2.

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.

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
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or

61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages

with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.

• The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.

2.3.2 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 (P 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.

-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.

2.3.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.

Device Removal

As is the case with any component that, is being removed, it is
essential when removing an (LF)BGA, that the board, tracks,
solder lands, or surrounding components are not damaged. To
remove an (LF)BGA, the board must be uniformly heated to a
temperature close to the reflow soldering temperature.
A uniform temperature reduces the risk of warping the PWB. To
do this, we recommend that the board is heated until it is certain
that all the joints are molten. Then carefully pull the component
off the board with a vacuum nozzle. For the appropriate
temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.

EN 6 LC4.8E AA2.

Safety Instructions, Warnings, and Notes

After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.

Device Replacement

The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
So as not to damage neighbouring components, it may be
necessary to reduce some temperatures and times.

More Information

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

2.3.4 Lead-free Solder

Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.

Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 5 and 6 refer to the production year, digits
7 and 8 refer to production week (in example below it is 1991
week 18).

To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.

• Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to
avoid mixed regimes. If this cannot be avoided, carefully
clear the solder-joint from old tin and re-solder with new tin.

• Use only original spare-parts listed in the Service-Manuals.
Not listed standard material (commodities) has to be
purchased at external companies.

• Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
shortly before it is used (soldered). Otherwise the body of
the IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam-)
pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection!).
Do not re-use BGAs at all!

• For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.

In case of doubt whether the board is lead-free or not (or with
mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using
SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid the
mixing of two alloys).

E_06532_024.eps

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Figure 2-1 Serial number example

Regardless of the special lead-free logo (which is not always
indicated), one must treat all sets from this date onwards
according to the rules as described below.

P

b

Figure 2-2 Lead-free logo

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

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

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

• Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilised at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.

Caution: For BGA-ICs, you must use the correct temperature
profile, which is coupled to the 12NC. For an overview of these
profiles, visit the website www.atyourservice.ce.philips.com
(needs subscription, but is not available for all regions).
You will find this and more technical information within the
"Magazine", chapter "Workshop information".
For additional questions please contact your local repair help
desk.

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.

3. Directions for Use

You can download this information from the following websites:

http://www.philips.com/support
http://www.p4c.philips.com

Directions for Use

EN 7LC4.8E AA 3.

EN 8 LC4.8E AA4.

Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

4.1 Cable Dressing

4.2 Service Position

4.3 Assy/Panel Removal

4.4 Set Re-assembly

4.1 Cable Dressing

Notes:

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

• Follow the disassembling instructions in described order.

4.2 Service Position

First, put the TV set in its service position. Therefore, place it
upside down on a table top (use a protection sheet or foam
bars).

4.2.1 The Foam Bars

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Figure 4-2 Foam bars

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Figure 4-1 Cable dressing

The foam bars (order code 3122 785 90580) can be used for
all types and sizes of Flat TVs. By laying the plasma or LCD TV
flat on the (ESD protective) foam bars, a stable situation is
created to perform measurements and alignments. By first
placing a mirror flat on the table under the TV you can easily
see if something is happening on the screen.

Mechanical Instructions

EN 9LC4.8E AA 4.

4.3 Assy/Panel Removal

4.3.1 Rear Cover

3

3

4

3

3

4

3

Figure 4-3 Rear cover screws

Warning: Disconnect the mains power cord before you remove

the rear cover.

1. Remove the screws that secure the rear cover (see Figure
“Rear cover screws”); these are:
a) 4 x big torx screws (1) for securing the stand/wall mount;
b) 5 x small torx screws (2) near the rear I/O panel;
c) 22 x small torx screws (3) that secure the loudspeaker
compartments [6 of these screws are in sunken holes (4) ]
and along the edges of the rear cover.

2. Lift the rear cover from the cabinet cautiously. Make sure
that wires and other internal components are not damaged
during cover removal.

1

2

3

4

4

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3

3

3

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4.3.3 LED Panel

1

2

Figure 4-5 LED panel

1. Remove the fixation screws (1) and take the panel out of its
brackets.

2. Disconnect the cable (2) from the panel.

4.3.4 Keyboard Control Panel

2

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4.3.2 Side I/O Panel

1

2

Figure 4-6 Keyboard control panel

1. Remove the panel (1) from its brackets (2).

1

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2. Disconnect the cable (3) from the panel.

3

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Figure 4-4 Side I/O panel

1. Disconnect the cable (1) from the panel.

2. Remove the fixation screw (2) and lift the panel out of its
brackets.

EN 10 LC4.8E AA4.

Mechanical Instructions

4.3.5 SSB Board Cover Shield

1

3

Figure 4-7 SSB board cover shield

4.3.7 Power Supply Panel

3

2

1

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2

1

1

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1

1

Figure 4-8 DVI-I connector and rear I/O panel screws

1.Very cautiously disconnect the LVDS cable (1) from the
SSB panel (see Figure “SSB board cover shield”). Notice
that this cable is very fragile.

2. Remove all other cables (2) from the SSB board (see
Figure “SSB board cover shield”).

3. Remove the fixation screws (3), see Figure “SSB board
cover shield” and remove the SSB shield with the SSB
board inside, and the rear I/O panel still attached to it.

4. Remove the fixation screws (1) from the DVI-I connector
and from the rear panel, see Figure “DVI-I connector and
rear panel screws”, and remove the rear I/O panel from the
SSB board.

5. Remove the upper part of the shield from the SSB panel,
by unhooking it from its brackets. Be careful not to damage
the LVDS connector on the SSB board, see Figure “SSB
board cover shield”.

4.3.6 SSB Board

Figure 4-10 Power 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.

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1

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Figure 4-9 SSB board

1. Remove the two fixation screws (1) that secure the SSB
board on the lower part of the SSB shielding, see Figure
“SSB board”.

2. Remove the SSB panel.

4.3.8 Class D Audio Amplifier/STBY Power Supply Panel

2

1

2

F_15420_042.eps

Figure 4-11 Class D audio amplifier/STBY power 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.

Mechanical Instructions

070605

EN 11LC4.8E AA 4.

EN 12 LC4.8E AA4.

s

Mechanical Instructions

4.3.9 LCD Panel

2

1

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Figure 4-12 “L” and “R” loudspeaker cables and cable clamps

Figure 4-15 LCD panel connector

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Figure 4-13 LVDS connector

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Figure 4-16 LCD panel

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Figure 4-14 LCD panel fixation screws

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Mechanical Instructions

EN 13LC4.8E AA 4.

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 (1, see Figure “L” and “R” loudspeaker cables and
cable 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”; the two types of torx
screws, 6 small ones and 4 large ones, are indicated by the
two screwdrivers).

6. Unplug the connector of the LCD panel flatcable, at the “R”
speaker side of the TV set, from connector 1316 on the
lower left side of the Class D audio amplifier/STBY power
supply panel (see Figure “Class D audio amplifier/STBY
power supply 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
flatcable and the “L” loudspeaker cable from their clamps,
and disconnect the LCD flatcable 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.

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 positions. See Figure "Cable
dressing". Be careful with the fragile LVDS cable.

EN 14 LC4.8E AA5.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Problems and Solving Tips Related to CSM

5.4 Service Tools

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Fault Finding and Repair Tips

5.1 Test Points

This chassis is equipped with test points in the service printing.
In the schematics test points are identified with a rectangle box
around Fxxx or Ixxx.
Perform measurements under the following conditions:

• Television set in Service Default Alignment Mode.

• Video input: Colour bar signal.

• Audio input: 3 kHz left channel, 1 kHz right channel.

5.2 Service Modes

Service Default mode (SDM) and Service Alignment Mode
(SAM) offers several features for the service technician, while
the Customer Service Mode (CSM) is used for communication
between the call centre and the customer.

This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the possibilities of structured troubleshooting, error code
reading, and software version readout for all chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see also paragraph
"ComPair").

How to Enter

To enter 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 "Service" jumpers on the TV board during cold start
and apply mains (see Figure "Service jumpers"). Then
press the mains button (remove the short after start-up).
Caution: Entering SDM by shorting "Service" jumpers will
override the +8V-protection. Do this only for a short period.
When doing this, the service-technician must know exactly
what he is doing, as it could damage the television set.

• Or via ComPair.

1

F_15270_053.eps

180505

Figure 5-1 Service jumpers

5.2.1 Service Default Mode (SDM)

Purpose

• To create a predefined setting for measurements to be
made.

• To override software protections.

• To start the blinking LED procedure.

• To inspect the error buffer.

• To check the life timer.

Specifications

• Tuning frequency: 475.25 MHz.

• Colour system: PAL-BG.

• All picture settings at 50% (brightness, colour contrast,
hue).

• Bass, treble, and balance at 50 %; volume at 25 %.

• All service-unfriendly modes (if present) are disabled. The
service unfriendly modes are:
– Timer / Sleep timer.
– Child / parental lock.
– Blue mute.
– Hotel / hospital mode.
– Auto shut off (when no “IDENT” video signal is

received for 15 minutes).
– Skipping of non-favourite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.
– Auto Volume Levelling (AVL).

After entering 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.

00035 LC4XEP1 1.15/S4XPVX 1.23 SDM

ERR 0 0 0 0 0

OP 000 057 140 032 120 128 000

F_15420_029.eps

060605

Figure 5-2 SDM menu

Service Modes, Error Codes, and Fault Finding

EN 15LC4.8E AA 5.

How to Navigate

Use one of the following methods:

• When you press the MENU button on the remote control,
the set will switch on the normal user menu in the SDM
mode.

• On the TV, press and hold the VOLUME DOWN and press
the CHANNEL DOWN for a few seconds, to switch from
SDM to SAM and reverse.

How to Exit

Switch the set to STANDBY by pressing the mains button on
the remote control transmitter or the television set.
If you turn the television set off by removing the mains (i.e.,
unplugging the television) without using the mains button, the
television set will remain in SDM when mains is re-applied, and
the error buffer is not cleared.

5.2.2 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.

• AKB switching.

• Software alignments (Tuner, White Tone, Geometry &
Audio).

• NVM Editor.

• ComPair Mode switching.

How to Enter

To enter 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 (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.

00035 LC4XEP1 1.15/S4XPVX 1.23 SAM
ERR 0 0 0 0 0

OP 000 057 140 032 120 128 000

. Clear Clear ?

. Options
. Tuner
. White Tone
. Audio
. NVM Editor
. SC NVM Editor

. ComPair Mode On

Figure 5-3 SAM menu

F_15420_030.eps

060605

Menu Explanation

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

2. AAABCD-X.Y. This is the software identification of the
main microprocessor:
– A= the project name (LC04.x).
– B= the region: E= Europe, A= Asia Pacific, U= NAFTA,

L= LATAM.

– C= the software diversity:

• Europe: T= 1 page TXT, F= Full TXT, V= Voice
control.

• LATAM and NAFTA: N= Stereo non-dBx, S=
Stereo dBx.

• Asian Pacific: T= TXT, N= non-TXT, C= NTSC.

• ALL regions: M= mono, D= DVD, Q= Mk2.

– D= the language cluster number.
– X= the main software version number (updated with a

major change that is incompatible with previous
versions).

– Y= the sub software version number (updated with a

minor change that is compatible with previous
versions).

3. EEEEE-F.GG. This is the software identification of the
Scaler:
– EEEEEE= the scaler sw cluster
– F= the main sw version no.
– GG= the sub-version no.

4. SAM. Indication of the Service Alignment Mode.

5. Error Buffer. Shows all errors detected since the last time
the buffer was erased. Five errors possible.

6. Option Bytes. Used to set the option bytes. See “Options”
in the Alignments section for a detailed description. Seven
codes are possible.

7. 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.

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

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

10. White Tone. Used to align the white tone. See “White
Tone” in the Alignments section for a detailed description.

11. Audio. No audio alignment is necessary for this television
set.

12. NVM Editor. Can be used to change the NVM data in the
television set. See table “NVM data” further on.

13. SC NVM Editor. Can be used to edit Scaler NVM.

14. ComPaIr. Can be used to switch on the television to In
System Programming (ISP) mode, for software uploading
via ComPair.
Caution: When this mode is selected without ComPair
connected, the TV will be blocked. Remove the AC power
to reset the TV.

How to Navigate

• In SAM, select menu items with the MENU UP/DOWN keys
on the remote control transmitter. The selected item will be
highlighted. 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 submenu.

• In SAM, when you press the MENU button twice, the set
will switch to the normal user menus (with the SAM mode
still active in the background). To return to the SAM menu
press the MENU or STATUS/EXIT button.

• When you press the MENU key in while in a submenu, you
will return to the previous menu.

EN 16 LC4.8E AA5.

Service Modes, Error Codes, and Fault Finding

How to Store SAM Settings

To store the settings changed in SAM mode, 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.
If you turn the television set “off” by removing the mains (i.e.,
unplugging the television) without using the mains button, the
television set will remain in SAM when mains is re-applied, and
the error buffer is not cleared.

5.2.3 Customer Service Mode (CSM)

Purpose

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

How to Enter

To enter 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 00035 LC4XEP1 1.15/S4XPVX 1.23 CSM

2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000

4

5
6 NOT TUNED

7 PAL

8 STEREO

9 CO 50 CL 50 BR 50
0 AVL Off

8. Displays the detected Audio (e.g. stereo/mono).

9. Displays the picture setting information.

10. Displays the sound setting information.

How to Exit

To exit CSM, use one of the following methods:

• Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.

• Press the POWER button on the television set.

5.3 Problems and Solving Tips Related to CSM

5.3.1 Picture Problems

Note: The problems described below are all related to the TV

settings. The procedures used to change the value (or status)
of the different settings are described.

Picture too Dark or too Bright

If:

• The picture improves when you press the AUTO PICTURE
button on the remote control transmitter, or

• The picture improves when you enter the Customer
Service Mode,

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys (if necessary) to select
BRIGHTNESS.

6. Press the MENU LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.

7. Use the MENU UP/DOWN keys to select PICTURE.

8. Press the MENU LEFT/RIGHT keys to increase or
decrease the PICTURE value.

9. Press the MENU button on the remote control transmitter
twice to exit the user menu.

10. The new PERSONAL preference values are automatically
stored.

E_15420_031.eps

060605

Figure 5-4 CSM menu

Menu Explanation

1. Indication of the decimal value of the operation hours
counter, Software identification of the main microprocessor
(see "Service Default or Alignment Mode" for an
explanation), and the service mode (CSM = Customer
Service Mode).

2. Displays the last five errors detected in the error code
buffer.

3. Displays the option bytes.

4. Displays the type number version of the set.

5. Reserved item for P3C call centres (AKBS stands for
Advanced Knowledge Base System).

6. Indicates the television is receiving an "IDENT" signal on
the selected source. If no "IDENT" signal is detected, the
display will read "NOT TUNED"

7. Displays the detected Colour system (e.g. PAL/NTSC).

White Line around Picture Elements and Text

If:

The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select SHARPNESS.

6. Press the MENU LEFT key to decrease the SHARPNESS
value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

Service Modes, Error Codes, and Fault Finding

EN 17LC4.8E AA 5.

Snowy Picture

Check CSM line 6. If this line reads “Not Tuned”, check the
following:

• Antenna not connected. Connect the antenna.

• No antenna signal or bad antenna signal. Connect a proper
antenna signal.

• The tuner is faulty (in this case line 2, the Error Buffer line,
will contain error number 10). Check the tuner and replace/
repair the tuner if necessary.

Black and White Picture

If:

• The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select COLOR.

6. Press the MENU RIGHT key to increase the COLOR value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

Menu Text not Sharp Enough

If:

• The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter,

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu.

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select PICTURE.

6. Press the MENU LEFT key to decrease the PICTURE
value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

You do not have to know anything about I

2

C commands

yourself because ComPair takes care of this.

3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.

Specifications

ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
(or RS-232) cable.
For this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector(s).

The ComPair faultfinding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:

• Automatically (by communicating with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I
ComPair can access the I
ComPair can send and receive I

2

C/UART bus of the television.

2

2

C/UART level.

C/UART commands to
the microcontroller of the television. In this way, it is
possible for ComPair to communicate (read and write) to
devices on the I

2

C/UART buses of the TV-set.

• Manually (by asking questions to you): Automatic
diagnosis is only possible if the microcontroller of the
television is working correctly and only to a certain extent.
When this is not the case, ComPair will guide you through
the faultfinding 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 faultfinding process.

By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.

How To Connect

This is described in the chassis faultfinding database in
ComPair.

Caution: It is compulsory to connect the TV to the PC as
shown in the picture below (with the ComPair interface in
between), as the ComPair interface acts as a level shifter. If
one connects the TV directly to the PC (via UART), ICs will be
blown!

TO

UART SERVICE

CONNECTOR

TO
I2C SERVICE
CONNECTOR

5.4 Service Tools

5.4.1 ComPair

Introduction

ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:

1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.

2. ComPair allows very detailed diagnostics (on I
is therefore capable of accurately indicating problem areas.

2

C level) and

PC VCR I2CPower

Figure 5-5 ComPair interface connection

How To Order

• ComPair order codes (EU/AP/LATAM):

9V DC

E_06532_021.eps

180804

EN 18 LC4.8E AA5.

Service Modes, Error Codes, and Fault Finding

• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.

• ComPair interface (excl. transformer): 4822 727 21631.

• Starter kit ComPair32 software (registration version): 3122
785 60040.

• Starter kit SearchMan32 software: 3122 785 60050.

• ComPair32 CD (update): 3122 785 60070 (year 2002),
3122 785 60110 (year 2003 onwards).

• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003), 3122 785 60130 (year 2004).

• ComPair firmware upgrade IC: 3122 785 90510.

• Transformer (non-UK): 4822 727 21632.

• Transformer (UK): 4822 727 21633.

• ComPair interface cable: 3122 785 90004.

• ComPair interface extension cable: 3139 131 03791.

• ComPair UART interface cable: 3122 785 90630.

Note: If you encounter any problems, contact your local
support desk.

5.4.2 LVDS Tool

Introduction

This service tool (also called “ComPair Assistant 1“) may help
you to identify, in case the TV does not show any picture,
whether the Small Signal Board (SSB) or the display of a Flat
TV is defective.
Furthermore it is possible to program EPLDs with this tool
(Byteblaster). Read the user manual for an explanation of this
feature.

5.5.1 How to Read the Error Buffer

You can read the error buffer in 3 ways:

• On screen via the SAM (if you have a picture).

Examples:

– 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.

5.5.2 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/STATUS button (do not allow the display
to time out between entries while keying the
sequence).

– Make sure the menu item CLEAR is highlighted. 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.

Since 2004, the LVDS output connectors in our Flat TV models
are standardised (with some exceptions). With the two
delivered LVDS interface cables (31p and 20p) you can cover
most chassis (in special cases, an extra cable will be offered).

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 (>= 1280x768). Generally this tool is intended to
determine if the SSB is working or not. Thus to determine if
LVDS, RGB, and sync signals are okay.

How to Connect

Connections are explained in the user manual, which is
delivered with the tool.

Note: To use the LVDS tool, you must have ComPair release
2004-1 (or later) on your PC (engine version >= 2.2.05).
For every TV type number and screen size, one must choose
the proper settings via ComPair. The ComPair file will be
updated regularly with new introduced chassis information.

How to Order

• LVDS tool (incl. two LVDS cables: 31p and 20p):
3122 785 90671.

• Service Manual LVDS tool:
3122 785 00810.

• LVDS cable 20p (for Telra 14-inch):
3122 785 90810.

• LVDS cable 30p (for LC4.3):
3122 785 90820.

• LVDS cable 41p-to-31p for CA1 (dual -> single LVDS):
3122 785 90830.

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

5.5 Error Codes

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.

Service Modes, Error Codes, and Fault Finding

EN 19LC4.8E AA 5.

5.5.3 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 5-1 Error code overview

Error Device Error Description Check Item Diagram

0 Not applicable No Error

1 Not applicable Mi s-match of TV

2 Not applicable - - -

3 Not applicable - - -

4 Genesis Scaler

Flash-ROM

5 Scaler supply

7752

6 Not applicable General I2C error 1102, 7L04, 7M00 B1 + B18

7ADC I

8 Scaler EEPROM I2C error while

9 Hercules

EEPROM

10 Tuner I

11 Columbus I2C error while

12 Not applicable - - -

13 HDMI Panellink

Receiver/
Decoder

14 Scaler SDRAM Read-write error

15 Not applicable - - -

16 EPLD I2C error while

17 Digital Module

(only on Digital
sets)

18 Not applicable - - -

Hercules SW and
Scaler SW

I2C error while
communicating with
the Genesis Scaler
and/or Flash-ROM
is faulty/empty

+5V protection 7752 B6

2

C error 7L04 B18

communicating with
the Scaler
EEPROM

2

C error while

I
communicating with
the Hercules
EEPROM (NVM for
TV).
Remark: when the
Hercules EEPROM
is defective, the
Hercules should
operate with its
default values.

2

C error while
communicating with
the PLL tuner

communicating with
the 2D/3D
combfilter
Columbus

I2C error while
communicating with
the iBoard HDMI
Panellink Receiver/
Decoder (only in
NAFTA and AP
sets)

with the Scaler
SDRAM

communicating with
EPLD

I2C error while
communicating with
the Digital Module
(only on Digital
sets)

--

7801

7B01

7C01 B11

7207 B2

1102, F102, F104,
F107

7M00 B19

7D03 B12

7B01 B10

7N02 B20 +

Digital Module
(only on Digital
sets)

B7 + B8

B10

+ B19

B1

(only in
NAFTA
and AP
sets)

B21

5.6 The Blinking LED Procedure

Using this procedure, you can make the contents of the error
buffer visible via the front LED. This is especially useful when
there is no picture.

When the SDM is entered, the front LED will blink the contents
of the error-buffer:

• The LED blinks with as many pulses as the error code
number, followed by a time period of 1.5 seconds, in which
the LED is off.

• Then this sequence is repeated.

Any RC5 command terminates this sequence.

Example of error buffer: 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.

5.7 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 handy 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!

• Do not change the Scaler NVM settings, as this will
hamper the DVI functionality of the TV set!

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

Table 5-2 NVM editor overview

Hex Dec Description

.ADR 0x000A 10 Existing value

.VAL 0x0000 0 New value

.Store Store?

EN 20 LC4.8E AA5.

Table 5-3 NVM Default values (option bit settings through NVM Editor in SAM Mode)

Byte Nr. Bit Feature/Mode Description

Byte 0
174(dec)

0 QSS (LSB) Mode of quasi split sound amplifier 1 1

1 FMI Connection of output of QSS amplifier 1 1

2 HCO EHT tracking mode 0 0

3 HP2 Synchronization of OSD/Text display 1 1

4 FSL Forced slicing level for vertical sync 1 1

5 TFR DC transfer ratio of luminance signal 1 1

6 OSVE Black current measuring in overscan 0 0

7 MVK (MSB) (For Future Usage, as defined by software) 0 0

Total Dec Values 59 59

Total Hex Values 3B 3B

Service Modes, Error Codes, and Fault Finding

37PF7320/10

37PF5320/10

Byte 1
175(dec)

Byte 2
176(dec)

Byte 3
177(dec)

0 PSE PSE 0 0

1 OPC OPC 0 0

2PRIS PRIS 0 0

3 CONTINUOUS FACTORY Continuous factory mode 0 0

4 WHITE PATTERN ON Last color pattern status in factory mode 0 0

5 SDM MODE Service default mode on/off 0 0

6 SAM MODE Service Align mode on/off 0 0

7 SVMA Scavm On / Off 0 0

Total Dec Values 0 0

Total Hex Values 00 00

0 MUTE STATUS Mute status 0 0

1 TUNER AUTO MODE Auto mode 1 1

2 CABLE MODE Cable/Antenna mode 0 0

3 LAST POWER MODE Last power status of the set 1 1

4 CHILD LOCK MODE Child lock enabled 0 0

5 SURF MODE Surf mode on/off 0 0

6 FACTORY MODE Factory mode on 0 0

7 PSNS For PAL color enhancement in ES4 1 1

Total Dec Values 138 138

Total Hex Values 8A 8A

0 RADIO/TV MODE Radio mode or TV mode 0 0

1 WAKE-UP MODE WAKE-UP MODE 0 0

2 HOTEL MODE TV in Hotel mode 0 0

3 HOTEL KBD LOCK Keyboard locked 0 0

4HBL HBL 0 0

5 BLS Blue stretch mode 1 1

6SL SL 0 0

7 CFA0 Comb filter On/Off 1 1

Total Dec Values 160 160

Total Hex Values A0 A0

Byte 4
178(dec)

0 Signal Strength Signal Strength Switch in MK2 0 0

1 LPG LPG 0 0

2 DVD TRAY LOCK Lock/Unlock DVD tray 0 0

3 SCRSAVER MODE Screen saver mode 1 1

4 BKS Black Stretch Mode 1 1

5 BSD Black Stretch Depth 1 1

6 CRA0 Coring on SVM 1 1

7 PIP QSS PIP QSS 0 0

Total Dec Values 120 120

Total Hex Values 78 78

Service Modes, Error Codes, and Fault Finding

Byte Nr. Bit Feature/Mode Description

Byte 5
179(dec)

Byte 6
180(dec)

0 FFI Fast Filter 0 0

1 NNR No red reduction during blue stretch 1 1

2 MUS NTSC matrix 1 1

3 GAM Gamma control 1 1

4 CBS Control sequence of beam current limiting 0 0

5 LLB Low level of beam current limiter 0 0

6 DSA Dynamic skin tone angle area 1 1

7 DSK Dynamic skin tone angle on/ off 0 0

Total Dec Values 78 78

Total Hex Values 4E 4E

0 LTI status LTI last status 1 1

1 Inc_Life_Time Inc_Life_Time 0 0

2 PC_Mode PC_Mode 0 0

3 HD_Mode HD_Mode 0 0

4 Tact_Switch Tact_Switch 0 0

5 Set_In_Special_Stby Set_In_Special_Stby 0 0

6 Hotel_OSDDisplay Hotel_OSDDisplay 0 0

7 Hotel_MonitorOut Hotel_MonitorOut 0 0

Total Dec Values 1 1

Total Hex Values 01 01

37PF7320/10

EN 21LC4.8E AA 5.

37PF5320/10

Byte 7
181(dec)

5.7.2 Load Default NVM Values

In case a blank NVM is placed or when the NVM content is
corrupted, default values can be downloaded into the NVM.
(For empty NVM replacement, short the SDM with a jumper
and apply the mains voltage. Remember to remove the jumper
after the reload is completed). After the default values are
downloaded, it will be possible to start up and to start aligning
the TV set. This is no longer initiated automatically; to initiate
the download the following action has to be performed:

1. Switch “off” the TV set by disconnecting the AC Power

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

3. Press P+ or Ch+ on the local keyboard (and keep it

4. Switch on the TV set via the AC Power plug.

5. Keep pressing the P+/Ch+ button until the set has started

Alternative method:

1. Go to SAM.

2. Select NVM Editor (not SC NVM Editor).

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

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

5. Store the value.

6. Disconnect the mains plug and wait for a few seconds.

7. Reconnect the mains plug and wait until the set goes into

8. Restart the set.

0 Hotel_IconMode Hotel_IconMode 0 0

1 DBE DBE 1 1

2SD SD 0 0

3 Set_in_PC_Sleep_Mode Set_in_PC_Sleep_Mode 0 0

4 Reserved Reserved 0 0

5 Reserved Reserved 0 0

6 Reserved Reserved 0 0

7 Reserved Reserved 0 0

Total Dec Values 2 2

Total Hex Values 02 02

plug.

pressed).

up and the SDM is shown.

its standby mode (red LED lights up).

5.7.3 Tuner and IF

No Picture in RF Mode, but there is a Noise Raster

1. Check whether picture is present in AV. If not, go to Video
processing troubleshooting section.

2. If present, check if the Option settings are correct.

3. Check if all the supply voltages are present (3.3/5/8/12/33
V).

4. Check if the I

5. Manually store a known channel and check if there is IF
output at Tuner pin 11.

6. Check the tuning DC voltage at pin 2 of the Tuner. The DC
voltage should vary according to the frequency/channel
being chosen.

7. If the tuning voltage is OK, check the tuner output, pin 11.

8. If it has no output, the Tuner may have a defect. Change
the Tuner.

Sound in Picture Problem for L' System (rolling horizontal lines)

1. Check whether AGC L' in SAM mode is set to 0.

2. If yes, align the set to correct value.

Required System is not Selected Correctly

Check whether a Service jumper (#4204 & 4205, 0805 size) is
present. If yes, remove it.

2

C lines are working correctly (3.3 V).

EN 22 LC4.8E AA5.

5.7.4 Video Processing

No Power

1. Check +12 V and 3V3 at position 1J02.

2. If no supply, check the connector 1J02.

3. If it is correct, check the power supply board.

Power Supply is Correct, but no Green LED

1. Check if the connectors 1K00 are properly inserted.

2. If they are inserted correctly, check if the 3V3 is present.

No Picture Display (blank screen with correct sound output)

1. Check whether the user menu is visible.

2. If the user menu is OK, activate teletext mode.

3. If teletext is OK, the problem is in the ADC (B18) &
Columbus 3D combfilter (B19), if present (depending on
model, see also paragraph “Teletext Path” in chapter 9).

4. If the user menu is not visible, check if the LCD panel
backlight is ON.

5. If the backlight is OFF, the problem is in the power supply
board or LCD panel. Also check pin 12 (LAMP_ON_OFF)
of 1J02. It should be HIGH during normal operation.

Note: For faultfinding purposes, it is important to know the
following: in Pixel Plus and Digital Crystal Clear models, which
have an ADC (B18) and Columbus 3D combfilter (B19), the
digital input of the scaler is used for the digital video path
(Hercules output), whereas the analogue RGB input (analogue
input of the scaler) is only used for teletext. This means that no
mixed mode (video plus teletext simultaneously) is possible. If
there is sound and teletext, but no video and user menu (blank
screen), the digital path (Hercules - ADC - Columbus - Scaler)
is faulty. If there is sound but no teletext, the back-end part
(Scaler - LCD panel) is faulty. In Crystal Clear models, which
do not have an ADC and Columbus, the RGB path (analogue
input of scaler) is used for both video and teletext.

Service Modes, Error Codes, and Fault Finding

No TV, but PC is Present

1. Check if Hsync_SDTV and Vsync_SDTV are present at pin
1 & pin13 of 7E03.

2. If they are present, check teletext output.

3. If there is no teletext output, the IC TDA150xx may be
defect.

5.7.5 Power Supply

In case the power supply does not work, check (apart from the
obvious fuse-check) if the oscillators in IC7001 (in TV sets with
37 inch screens) or in IC7001 and IC7U01 (in TV sets with 42
inch screens) are working. If not, replace the ICs.

Block Diagrams, Testpoint Overviews, and Waveforms

6. Block Diagrams, Testpoint Overviews, and Waveforms

Wiring Diagram 37” LCD

8736

8302

AUDIO & STANDBY

SA

2P3

1736

8735

2P3

2P3

1735

1738

23LC4.8E AA 6.

8317

LCD PANEL

2P3

1306

4P

1307

8304

8309

8306

3P

1309

4P

1304

7P

1M02

SPEAKER

CONTROL BOARD

E

1M01

3P

RIGHT

INVERTER

12P

8316

B

7P

1M02

SSB

1316

31P

1P06

12P

8150

9P

1739

1317

12P

8152

4P

1304

3P

1309

11P

1J01(1M46)

SCARTSCARTDVI AU

4P

8146

1107

UART

1M10

10P

1J00(1M03)

1101

3P

3P

Compair

11P

1M46

8103

1J04(1M52)

1103

3P

Tuner

1305

1M03

9P

3P

10P

1K00(1M21)

1K04(1M06)

1K02

6P

11P

3P

LV DS

8305

MF + SUPPLY

A

2P

1306

3P

1305

AC INLET

8136

8308

1308

2P

8120

LED SWITCH

J

PANEL

INVERTER

12P

6P

1M20

LEFT

SPEAKER

SIDE I/O

D

11P

1M36

8101

8199

F_15420_022.eps

060605

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Video

VIDEO

TUNER & VIF

B1

RF

IN

SCART ANALOG IO

B15

1G02

SCART 2

1

21

EXT 2

1G01

SCART 1

1

21

EXT 1

SIDE I/O

D

1002

VIDEO

IN

1001

5

S-VHS

SVHS

1102
UV1318S

20

15

8

19

19

20

16

15

11

7

8

1

2

4

SCL

STATUS_2

STATUS_1

3

4

+5SW_a

67

TUNER

5

SDA

SC1_CVBS_IN

SC1_FB

+VTUN

1

L_IN

CVI_Pr_IN

CVI_Y_

CVI_Pb_IN

IF-TER

11

3104

B2

IN

B2

Y

C

2106

F108

FRONT

FRONT_C_IN

AV2_DMMI_SW

7G05

EF

7G03

EF

4G14

4G15

4G17

4G16

1M36

2

4

1104

2

1106

2

SC2_Y_IN

_Y_CVBS_IN

SC2

_C_IN

SC2

SC1_CVBS_RF_OUT

SC1_CV1_DMMI_R_Pr_IN

SC1_CV1_DMMI_G_Y_IN

SC1_CV1_DMMI_B_Pb_IN

SIDE

B17

CONNECTIONS

1K04

2

FRONT_YCVBS_IN

4

FRONT_C_IN

B2

7

VIF1

8

VIF2

RF_AGC

SIF1

7

SIF2

8

7G10

2

1

12

13

_CVBS_MON_OUT

Present only for

non DVB sets

SC1_CVBS_IN

SC1_FBL_IN_1

HERCULES

7217
TDA15021H

24

25

31

DC

29

30

14

SC2

15

4G18

B7

AC

AGC

Detect

_AV3_Y_IN

4G13

SC2_OUT_SW

Sound

Traps

QSS Mixer

AM Demod.

SC2_AV3_C_IN

CVBS_COMB

SC2_Y_IN_1

7219

14

B2

B13

B13

B13

24LC4.8E AA 6.

SYNC INTERFACE

B3

7208

RO

85

G_OSD

Vertical &

East-West

Geometry

Sync Sep

H-OSC
H-Shift
H-Drive

CVBS/Y

B_OSD

RO

GO

BO

Fast Blanking

VDRB

HOUT

GO

86

BO

87

7436-2

22

1

7436-1

3

67

CVBS1

c

cvbs/y

HERCULES

Dig. 2H/4H

Combfilter

Yint

Y Delay Adj.

Chroma

Uint

PAL/NTSC/

SECAM

Decoder &

Vint

Baseband

Delay

RGB/Pr Pb Insert

YUV Interface

INSSW3

R/Pr-3

G/Y3

B/Pb-3

77 78 79 80

SAT

SCAVEM

on text

YOUT

74 75 76 70 71 72

Video

Switch

+

Control

QSS/FM

AM

59

7206

EF

64

51

52

58

13

48

12

9

55

43

UOUT

Skin Tone

U/V Tint

Saturation

Peaking
SCAVEM
U/V Delay

VOUT

RGB Matrix

Blue & Black

Strech

Gamma Corr.

R_OSD

YUV

YUV in/out

H/V

VIN

UIN

YIN

B18

N.C.

7L01

7L02

SC1_R_CVI_Pr_IN

SC1_G_CVI_Y_IN

SC1_FBL_IN_1

B15

B13

SC1_B_CVI_Pb_IN

B13

B13

INTF_V_OUT

INTF_U_OUT

INTF_Y_OUT

B14

CONNECTOR

EF

7209

EF

SCL

SDA

EF

EF

Vsync_SDTV

Hsync_SDTV

7L04

MST9883C
30
31

54

43

48

56

57

A/D

CONV.

EF

EF

7210

2

4

ADC

7L03

DIGITAL IO

1F00

27
26
25

H_PC

28

C5

C3 C4

C1 C2

24

18

916

17

DVI-D

V_PC

8

1
2
6
7
9

10
11
14

+5VSWI

15
17
18

23
24
16

MUX-SYNC INTERFACE

B13

F624

F625

F626

SC1_R_CVI_Pr_IN

B13

SC1_G_CVI_Y_IN

B13

SC1_B_CVI_Pb_IN

B13

BINA|Pb

B14

GINA|YINA

B14

RINA|Pr

B13

B14

Vsync_SDTV

B3

V_PC

B14

H_PC

B13

B14

Hsync_SDTV

B3

COL_Di(1-7)

COL_YA(1-7)

SC1_CV1_DMMI_R_Pr_IN

B15

SC1_CV1_DMMI_G_Y_IN

B15

SC1_CV1_DMMI_B_Pb_IN

B15

B13

B13
B13

B13
B13

R_SDTV

G_SDTV

B_SDTV

GINA|YINA

RX2-IN
RX2+IN
SCL_DVI

SDA_DVI
RX1-IN
RX1+IN

RX0-IN
RX0+IN
RXC+IN
RXC-IN
HOTPLUG

BINA|Pb

RINA|Pr

27

3

7

25

1

5

11

15

1

1

2

12

13

13

12

7E01

7E02

7E03

1

3

5
2

B10

B19

7E00

R-PR-ADC

17

G-Y-ADC

14

B-PB-ADC

11

I_PC_HD_SEL

9

12

14

2

PC_HD_SEL

19

15

14

10,11

SDRAM

7B01
K4D263238F

1Mx32x4

COLUMBUS

(Dig. PAL/NTC Comb)

7M00
T6TU5XBG

COLUMBUS

DIGITAL COMB

7M01
MSM56V16

512Kx16x2

14

15
4

9

R_PR+

B_PB+

7604

8

5

4

1

SD_HD_SEL

+2V5_DDR

95

SDRAM

FILTER

COL_D

COL_A

DRAM

SC1_R_CVI_Pr_IN

SC1_G_CVI_Y_IN

SC1_B_CVI_Pb_IN

RGB|CVI_HDA_SEL

G_Y+

AVSY NC

AHSYNC

SOG

PC_HD_DET

B7

FSDATA

FSADDR

COL_Do(1-7)

COL_YB(1-7)

B7

B7

B2,B13

B2,B13
B2,B13

AE10

SCALER

7801
GM1501

C3

D2

C2

B2

L3

L4

B10
A10

N4
N3
B9
A9

B8

A8
AL
B6

ANALOG

INPUT
PORT

FRAME

STORE

CONTROL

DVI/ HDM I

INPUT
PORT

SCALER

GRAPHIC

ZOOM

OUT BLENDER

OSD CONTROLLER

BRIGHTNESS/CONTRAST/HUE/SAT

VIDEO
ZOOM

UART

INTERFACE

MICRO

CONTROLLER

INTERNAL

RAM

B9

EXTERNAL

ROM

INTERFACE

SCALER

DISPLAY

TIMING

GEN.

OCMADDR

AE16
AF16

AE15
AF15

AE14
AF14

AF12
AF11

AF13
AE12

B11

OCMDATA

B20

FLASH/CONTROL

7C00
MX29LV040QC

FLASH

ROM

512Kx8

EPLD

TXB0­TXB0+

TXB1­TXB1+

TXB2­TXB2+

TXB3­TXB3+

TXBC­TXBC+

OR

TXB0+
TXB0­TXB1+
TXB1­TXB2+
TXB2­TXB3+
TXB3­TXBC+

TXBC-

7N02
EP1C12F256C8N

4N03
4N01

4N07
4N05

4N11
4N09

4N15
4N13

4N19
4N17

Only for sets with

7N04
THC63LVDF84B

LVD S

INTERFACE

RECEIVER

RGB

EPLD

PIXEL+

PROCESSOR

SD_HD_SEL H H H H H H

PC_HD_DET H H H H L H

RGB|CVI_HDA_SEL L H L L L L

B21

LVDSAn
LVDSAp

LVDSBn
LVDSBp

LVDSCn
LVDSCp

LVDSDn
LVDSDp

LVDSCLKn

LVDSCLKp

PIXEL PLUS

EPLD

OR

7P02
THC63LVDM83R

LVD S
TRANS­MITTER

RGB

LVDS_VCC

LVDSA­LVDSA+

LVDSB­LVDSB+

LVDSC­LVDSC+

LVDSD-

LVDSD+

LVDSCLK-

LVDSCLK+

LVDS_VCC

LVDSA­LVDSA+

LVDSB­LVDSB+

LVDSC­LVDSC+

LVDSD­LVDSD+

LVDSCLK-

LVDSCLK+

LVDSAn
LVDSAp

LVDSBn
LVDSBp
LVDSCn
LVDSCp

LVDSDn

LVDSDp
LVDSCLKn

LVDSCLKp

1P07

(1G50)

1P06

HDPCSide-AVEXT2EXT1TV

F_15420_023.eps

1
11

12
13
14
15
16

17
18
19
20
24
25
26
21
22

1
11

10
12
14
13
15

19
18
20
27
26
28
22
21
23

060605

TO DISPLAY (LC4.8 LC4.9)

TO DISPLAY (LC4.3)

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Audio

AUDIO

TUNER & IF

B1

1102
UV1318S

RF IN

SCART ANALOG IO

B15

1G01

1

21

EXT 1

SCART 1

1G02

1

21

EXT 2

SCART 2

SIDE I/0

D

1002

AUDIO

L/R IN

DIGITAL IO

B14

PC

AUDIO

IN

1F01

6

2

6

2

IFOUT

TUNER

4

5

B2

SCL

SDA

SC1_COMP_AV1_L_IN

SC1_COMP_AV1_R_IN

SC2_L_IN

SC2_R_IN

2

2
4
3
7

F108

11

SEL_IF_SDM

L

R

IF-TER

7101

2106

1M36

4110

6104

4G11

4G12

B17

1K04

66

88

1106

7

2

8

3

SC1_COMP_AV1_L_IN

SC1_COMP_AV1_R_IN

SIDE CONNECTORS

FRONT_L_IN

FRONT_R_IN

SIF1

SIF2

SC2_L_IN

SC2_R_IN

AudioIN2L

AudioIN2R

HERCULES

B2

7217
TDA15021H

29

30

33

34

35

56

57

49

50

53

54

AD Conv.

Std Stereo

Decoder

AUDI O

SELECT

ADC/DAC

QSS Mixer

AM Demod.

AM

QSS/FM

I2S

Processor

AUDIO

CONTROL

Vol/Treb/

Bass

Features

DACs

25LC4.8E AA 6.

AUDIO PROCESSING

B5

4212

60

61

62

63

36

37

4211

AUDOUTLSL

AUDOUTLSR

B16

OUT_MUTE

4618

4219

OUT_MUTE

POR_AUDIO

AUDIO-L

AUDIO-R

SOUND-ENABLE_1

POR_AUDIO

B5

7601
TS482ID

2

1

7

6

OUT_MUTE

7602
74HC08PW

2

3

&

1

&

6

5
9

8

&

10
12

&

13

7202

MUTE

7201

MUTE

B16

7606

MUTE

SOUND_ENABLE

POWER_DOWN
EXT_MUTE

3628

3629

SC2_L_MON_OUT

SC2_R_MON_OUT

SC2_L

SC2_R

SC1_L_RF_OUT

SC1_R_RF_OUT

SC1_L

SC1_R

(1M52)

N.C.

RES

+5V

1J04

11

33

88
99

77

B2

B16

B2

AUDIO

SA3

1739

SOUND-ENABLE

POR-CLASSD

PROT_AUDIOSUPPLY

SIDE

B17

CONNECTORS

HP_LOUT

HP_ROUT

SCART ANALOGUE IO

B15

N.C.

AUDIO-L

AUDIO-R

7701:7707

1K04

10 10

11 11

77

SOUND

ENABLE

7709/7710

PROT, CIRCUIT

SIDE I/O

D

1M36

+16V+19V

7700
TDA7490

10

18

AUDI O

SUPPLY

4,22

PWM

stby-mute

6

OSC

PWM

2,24

-16V-19V
PROT1

6703

6702

SOUND L-HEADPHONE-OUT

SOUND R-HEADPHONE-OUT

DETECT

SC2_L_MON_OUT

SC2_R_MON_OUT

5701

3

5702

23

3764

-16 V-19V

3761

+16 V+19V

SC1_L_RF_OUT

SC1_R_RF_OUT

3718

3717

5731

5730

DCPROT

+16 V+19V

-16 V-19V

1010

2

3
5

1736

1735

1M02

1G02-1

1G01-1

1

3

1

3

7
6
5

2
1

HEADPHONE

3

1

3

1

Speaker L

15W/8Ω

Speaker R

15W/8Ω

TO 1002

SA

SUPPLY

EXT 2

SCART 2

EXT 1

SCART 1

1

21

1

21

CONTROL

CONTROL BOARD

E

LED PANEL

J

1040

2

GND

OUT

+5V2-STBY

7052

+5V2-STBY

VS

6070

7051

Channel+

Channel-

Volume+

Volume-

3

1

Menu

Power

6050

6051

Green

Red

7062

3063

1703
1704
1705
1702
1701
1706

3051

KEYBOARD

RC

LIGHT-SENSOR

3061

+5V2-STBY

LED1

LED2

B17

1M01

22

0345

33

11

22

55

44

66

SIDE CONNECTORS

1K02

(1M01)

1K00

+3V3STBY

LED_SEL

PC-TV-LED

SYNC INTERFACE

B3

7430

3431

6F00

3432

RES

KEYBOARD

LIGHT_SENSOR

+3v3STBY

+5VSW

ITV_IR_SW_RESET

HERCULES

B2

7217
TDA15021H

120

HERCULES

IR

97

115

123

107

114

116
119

102

111
122

10

11

127

SEL_IF_SDM

4022

SERVICE

SMD

STATUS_1
STATUS_2

EXT_MUTE

SOUND-ENABLE

SC_STANDBY

AV2 _DMMI_SW

1202

B3

B3

B5

B5

B15

B1

B15B6

DC-DC CONVERTER

B6

PANEL-PWR-CTL

B8

SC_STANDBY

B2

+12VSW

7755

5756 5754

3758

3755

+3V3STBY

3759

7756

7754

3750

7758

LVDS_VCC

PAN_VCC

+3V3SW

F_15420_024.eps

060605

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Supply 37”

SUPPLY 37"

MAINS FILTER + STANDBY

A1

5303

1314

5305
5306

MAINS

FILTER

1308

2

T5AH

1

26LC4.8E AA 6.

400V_HOT

2059

HOT COLD

1

4

2

3

5011

5002

7002
TCET1102

7003

5025

5026

3057

3031

DC_PROT

6019
STPS20L40CFP

2029

6021

6041

2045

5021

3030

7010
TS2431

2042

6031

3052

3025

2020

VS Voltage
Adj.

3026

2022

+12V

+24Va

+24Vb

1304

44

33

22

11

SUPPLY

A2

BIAS SUPPLY

VCC

3000

15

14

OA

12

OB

10

FI

5017

5001

4

2

7007

6

7

7008

10

9

2319

1350

2

3

4

1

6307
GBJ6J

3318

+

-

399V_HOT

6315

6316

1

6318

2

6317

9311

6314

25V_HOT

RES

4

7307
TCET1102

3

6304

5007

5008

25V_HOT

400V_HOT

399V_HOT

7011
7012

SOFT

START

CURRENT

PROTECTION

7001
MC34067P

11

OSCC

3007

CONTROL

7

ERROR

11

SOST

5

+

VREF

7004
7009

OVER

VOLTAGE

PROTECTION

HIGH
SIDE

DRIVE

LOW
SIDE

DRIVE

2003

5009

60246025

7005

STP15NK50

7006

STP15NK50

PRINTED

COMPONENT

5010

5012

2060

SA1

1304

CONNECTIONS

+12V_A

+12V_+24V

1316

1317

1M10

1
2

3

4

5

1
2

3

4

5

1
2

TO

DISPLAY

TO

DISPLAY

TO 1M10

AL

AMBI LIGHT

(Optional)

6306
DF06M

-

6040

2512

2049

2009

6029

6030

2021

+12V_A

5507

STANDBY: LOW = ON
HIGH = STBY

7531

5020

5018

5019

STANDBY

VSND_POS

GND_SND

VSND_NEG

7131

RES

+5V_SW

VTUN

+11V

+12V

+8V6

+5V2

DC_PROT

1M02

7

6

5

TO 1M02

4

SA3

3

AUDIO

2

1

1M03

TO 1J00(1M03)

1M46

060605

9

5

CONNECTIONS

8

11

TO 1J01(1M46)

9

4

CONNECTIONS

3

6

7

5

B16

B16

+5V2-RELAY-IO2_PWM

N.C.

+5V_SW

F_15420_025.eps

5022

1007

T5A

5500

6

7

8

10

1

7501
TCET1102

2

4

3

HOT COLD

5110

3128

3158

7150
TCET1102

6504

6140

3124

PROT-OVV

7507
7506
7512

3509

5103

6122

OVERVOLTAGE
PROTECTION

STANDBY

6505

2513

3113

2141

7511
RES

5506

HOT

COLD

2303

1315

T1AE

+

1305

11

22

33

1306

11

22

SA2

1305

1306

1307

N.C.

STANDBY

1

2

3

4

+5V2

CONTROL

7505/7509/7560/

5504

5505

Prot-OVV

PROT_AUDIOSUPPLY

SA2
SA1

7100
7101
7105

CONTROL

6153

3101

3104

3150

3127

3100

6150

6151

7102

3155

5104

3V MAX
1V MAX STBY

3108

3156

6156

COLD

HOT

5

3

2

1

5105

4

3

1

3157

2

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview Small Signal Board

F101 C1

F102 D2
F103 C1
F104 D2

F105 D1
F106 D2
F107 C1

F108 C2

F109 C2
F110 B2
F111 B2
F112 B2
F113 B2
F114 C2
F115 D2
F116 D2

F117 D2
F201 A2
F202 A2
F203 A2
F204 B3
F205 B2
F206 B2
F207 B2
F208 B2
F209 B2
F210 C2
F211 A2
F212 A2
F213 A2
F214 A2
F215 A2

F216 B3
F218 A2
F219 A2

F220 A3
F221 A3

F222 B2
F223 B2
F224 A2
F225 A3
F226 A3
F227 C3
F228 A3
F229 B2

F230 A3

F231 A2
F232 B3

SERVICE TESTPOINTS

F103

F233 B3
F234 B3
F235 B3
F236 C3
F237 B2
F238 B2
F239 B2
F240 B2
F241 B3
F242 B2
F243 B2
F244 B2
F245 A2
F246 B2
F247 A2
F248 B2

I618

I602

F249 B2
F250 B3
F501 A2
F502 A2

F503 A2
F504 A2

F505 A3
F601 A1
F602 A2
F603 A1
F604 A2
F605 A2
F700 A6
F701 A5
F710 A5
F736 A3

I603

F604

F108

F102

F737 A3
F738 A3

F743 B3

F754 A5

F755 A6
F800 B7
F801 B6
F802 C5
F803 B5
F804 B5
F900 C5
F901 C5
F902 C6
F903 C5
F904 C6
F905 B6

F605

F503

F104

F906 B6
F907 B5
F908 C5
F909 C5
F910 C6
FB01 B7
FC00 B5
FC01 B5
FC02 B5
FC03 B5
FC04 B5
FC05 C5
FC06 B5
FC07 B4
FC08 B5
FC09 B5

3139 123 6093 .1

FC10 B4
FD00 C7
FD01 D7
FD02 D7
FD03 D7
FD04 C7
FD05 C6
FD06 C6
FD07 C7
FD08 C7
FD09 C7
FD10 C7
FD11 D7
FD12 C7
FD13 C7
FD14 C7

F504

FD15 C7
FD16 C7
FD17 B6

FE00 C5
FE01 C5
FE02 C4

FE03 B5
FE04 D5
FE05 C5
FE06 D5
FE07 B7
FE08 C4
FE09 C5

FE10 C4

FE11 C5

FE12 C5

I298

FE13 C5

FF00 D6
FF01 D6
FF02 D4
FF03 D7
FF04 D7
FF05 D7
FF06 D6
FF07 D6
FF08 D3
FF09 D7
FF10 D6
FF11 D6
FF12 D6
FF13 D6
FG00 D4

F220

F221

I218

FG01 D4
FG02 D3
FG03 D4
FG04 D3
FG05 D3
FG06 D3
FG07 D3
FG08 D3
FG09 D3
FG10 D2
FG11 D3
FG12 D2
FG13 D2
FG14 D6
FG15 D5
FG16 D6

F736

F737

F738

FG17 D6
FG18 D5
FG19 D5
FG20 D5
FG21 D5
FG22 D5
FG23 D4
FG24 D3
FG25 D3
FG26 D5
FG27 D5
FG28 D5
FG30 D5
FG32 D3
FG33 D3
FG34 D3

I733

FG35 D3
FG36 D4
FG37 D3
FG38 D3
FG39 D4
FG40 D7
FG41 D3
FG42 D4
FG43 D4
FG44 D4
FG45 D4
FG47 D4
FG48 D4
FG49 D4
FG50 D4
FG51 C2

FG53 D4
FG54 D4
FG56 D4
FJ00 A7
FJ01 A5
FJ02 A4
FJ03 A5
FJ04 A5
FJ05 A4
FJ06 A4
FJ07 A5
FJ08 A4
FJ09 A2
FJ10 A2
FJ11 A4
FJ12 A2

27LC4.8E AA 6.

FJ13 A2
FJ14 A2
FJ15 A7
FJ16 A7
FJ17 A7
FJ18 A7
FJ19 A7
FJ20 A7
FJ21 A5
FJ22 A5
FJ23 A5
FJ24 A5
FJ25 A5
FJ26 A5
FK00 B1
FK01 B1

FE10

FK02 B1
FK03 B1
FK04 B1
FK05 B1
FK06 B1
FK07 C1
FK08 C1
FK09 C1
FK10 B1
FK11 A1
FM01 C4
FM02 C4
FM03 C4
FM04 C4
FM05 C4
FN01 A6

FE02

FN02 A6
FN03 A6
FN04 A7
FN05 A7
FN06 A7
FN07 A7
FN08 A7
FN09 A7
FN10 A7
FN11 B6
FN12 A6
FN13 A6

FN14 A6
FN15 A6

FN16 A6
FN17 A6

FE12

FE13

FE01

FE00

FN18 B6
FN19 B5
FN20 A7
FN21 A7
FN22 A7
FN23 A7
FN24 A6
FN25 B6
FN26 A7
FN27 A7
FN28 A7
FN29 A7
FN30 A7
FN31 A7
FN32 A7
FN33 A7

FN34 A7
FN35 A7
FP01 A6

FP02 A6

FP03 A6

FP04 A6
FP05 A6

FP06 A6
FP07 A6
FP08 A7
FP09 A7
FP10 A7
FP11 A7
FP12 A7
FP13 A6
FP14 A7

F710
F754

F701

FP15 A6
FP16 A6
FP17 A7
I101 D2
I102 C2
I103 C2
I104 C2
I105 C2
I106 C2
I107 C2
I108 C2
I109 C2
I110 C2
I111 C1
I112 D2
I113 D2

F700

I902

I201 A2
I202 A2
I203 B2
I204 B2
I205 B2
I206 B2
I207 B2
I208 B2
I209 B2
I210 A3
I211 A3
I212 A3
I213 A2
I214 B2
I215 A2
I216 B2

I217 B3

I218 A3

I219 B3
I220 B3
I221 A2
I222 A2
I223 A2
I224 A3
I225 A2
I226 B2
I227 B2
I228 B3
I229 B2
I230 A3
I231 B2
I232 A2

FP02

FP05

FP04

I233 B2
I234 B2
I235 B2
I236 B2
I237 B2
I238 A2
I239 A3
I240 A3
I241 A2
I242 A2
I243 A3
I244 B3
I246 A3
I247 A3
I248 A3
I254 C3

FN14

FN15

I255 B3
I256 B3
I257 B3
I258 B2
I259 B3
I262 B2
I264 A2
I265 B3
I266 B3
I267 B3
I268 B3
I269 A2
I270 B3
I271 A3
I272 B3
I273 C3

I274 A1
I275 A3
I277 A3
I278 A3
I283 B3
I284 B3
I285 B3
I288 B3
I289 A2
I290 A2
I291 A2
I292 A2
I293 A2
I294 A2
I297 A1

I298 B3

I430 A1
I440 B3
I443 B3
I449 A3
I450 A3
I451 A3
I452 A3
I453 A1
I454 A1
I501 A3
I502 A3
I503 A2
I504 A2
I505 A2

I602 A1
I603 A2

I900

I604 A1
I605 A2
I606 A2
I607 A1
I608 A1
I610 A1
I611 B1
I612 A1
I613 A1
I614 A1
I615 A1
I616 A1
I617 A2

I618 A1

I619 A1
I705 A3

F_15270_036.eps

I706 A4
I708 A5
I709 A5
I710 A4
I711 A4
I712 A4
I713 A4
I714 A4
I715 A4
I716 A4
I731 A4
I732 A3

I733 A3

I734 A3
I735 A3
I736 A3

250505

I740 B3
I741 B3
I742 B3
I747 A5
I748 A5
I749 A5
I750 A6
I751 A5
I752 A5
I753 A5
I754 A5
I755 A5
I756 A6
I757 A5
I758 A5
I759 A5
I760 A6
I800 C6
I801 C5
I802 B5
I803 B5
I804 B6
I805 B5
I806 B5
I807 B5
I808 B5
I809 B5
I810 B5
I811 C7
I812 C6
I813 B7
I815 C6
I816 C6
I817 C6
I818 C4
I819 B5
I820 B6
I821 B5
I822 B5

I900 B7

I901 B6

I902 C6

I903 C6
I904 B6
I905 B6
I906 C5
IA00 C6
IA03 B4
IA05 C6
IA06 C6
IA07 C6
IA08 B5
IA09 B6
IB02 B7
IB03 B7
ID00 C7
ID01 D7
ID02 C7
ID03 C7
ID04 C7
ID05 C7
ID06 C7
ID07 C7
ID08 C7
ID09 C7
ID10 C7
ID11 C7
ID12 C7
ID13 C6
ID14 C6
ID15 C7
ID16 C7
ID17 C7
ID18 C7
ID19 C7
ID20 C7
ID21 C7
ID22 C6
IE00 D4
IE01 C4
IE02 D5
IE03 C6
IE04 C5
IE05 C5
IE06 C4
IE07 C4
IE08 C4
IE09 C5
IE10 C5
IE11 C5
IE12 C5
IE13 D5
IE14 D4

IE15 D4
IE16 C4
IE17 C4
IE18 C4
IE19 D5
IE20 D5
IE21 D5
IE22 D5
IE23 C5
IE24 C5
IE25 D5
IE26 D5
IE27 C5
IE28 C4
IE29 C4
IE30 C4
IE31 C5
IE32 C5
IE33 C5
IE34 C5
IE35 D5
IE36 C5
IE37 C5
IF00 D7
IF01 D7
IF02 D7
IF03 D7
IF04 D6
IF05 D6
IF06 D7
IF07 D7
IF08 D7
IF11 D6
IF12 D6
IF13 D7
IF14 D7
IF15 D6
IF17 D7
IF20 D7
IF21 D4
IF22 D6
IF23 D6
IG00 D4
IG01 D4
IG02 D4
IG03 D4
IG04 D3
IG05 D3
IG06 D3
IG07 D3
IG08 D3
IG09 D3
IG10 D3
IG11 D3
IG12 D3
IG13 D2
IG14 D6
IG15 D5
IG16 D6
IG17 D5
IG18 D6
IG19 D5
IG20 D6
IG21 D5
IG23 D5
IG24 D5
IG25 D5
IG26 D5
IG27 D4
IG28 D3
IG29 D3
IG30 D3
IG40 D5
IG42 D5
IG43 D4
IG46 D5
IG47 D5
IG49 D4
IG50 D4
IG52 D5
IG53 D5
IG54 D5
IG55 D5
IG56 D5
IG57 D5
IG58 D5
IG59 D4
IG60 D3
IG61 D2
IG62 D2
IG63 D3
IG64 D3
IG67 D3

IG69 D3
IG73 D4
IG75 D5
IG76 D6
IG78 D5
IG79 D5
IG80 D5
IJ01 A3
IJ02 A3
IJ03 A4
IJ04 A3
IJ05 A3
IJ06 A3
IJ07 A3
IJ08 A3
IJ09 A3
IJ10 A3
IJ11 A3
IJ12 A3
IJ13 A3
IK00 A1
IK01 A1
IK02 A1
IK03 A1
IK16 A1
IK17 B1
IK18 B1
IL01 B3
IL02 B3
IL03 B3
IL04 B3
IL05 B3
IL06 B3
IL07 B3
IL08 B3
IL09 B3
IL10 B4
IL11 B4
IL12 B4
IL13 B4
IL14 B4
IL15 B4
IL16 C3
IL17 B3
IL18 B3
IL19 B4
IM00 C4
IM01 C3
IM03 B4
IM04 B4
IM06 B4
IM07 B4
IM08 B4
IM09 B4
IM10 B3
IM11 C3
IN01 A6
IN02 A6
IN03 A6
IN04 A6
IN05 A6
IN06 A6
IN07 B6
IN08 A6
IN09 A6
IN10 A6
IN11 A6
IN12 A6
IN13 B6
IN14 A6
IN15 B6
IN16 A7
IN17 A7
IN18 A7
IN19 A6

I2C IC Overview

IIC

HERCULUS

B2

7217
TDA15021H

HERCULES

SET

PROCESSOR

Block Diagrams, Testpoint Overviews, and Waveforms

+3V3STBY

3232

109

108

104

3233

ERR

6

NVM_WP_HERC

DIGITAL IO

B14

C1 C2

18

DVI-D

CONNECTOR

+3V3STBY

3249

C5

C3 C4

24

916

17

56

M24C16

EEPROM

7

1F00

7

6

7207

NVM

ERR

9

DCC_5V

3F18

SDA

SCL

3F17

SDA_DVI

56

7F03

M24C02

EEPROM

256x8

SCL_DVI

+3V3IO

B8

SCALER

N3

N4

N1 N2

7801

GM1501H

SCALER

ERR

4

ADDRESS

DATA

SCALER

B7

M1

M2

3818

P3

P4

NVM_WP_SCALER

AF5

+3V3SW

OCMADDR

3817

OCMDATA

28LC4.8E AA 6.

TUNER & IF

B1

3102

(5108)

UART_TX

UART_RX

FLASH / CONTROL

B11

SDRAM

B10

3101

(5107)

54

1102

UV1318S

TUNER

ERR

10

3122

3123

5

7C01

M24C32

7

EEPROM

7C00

MX29LV040

FLASH ROM

3125

SDA_IO

SCL_IO

ERR

8

1101

3124

SDA

SCL

SERVICE

CONNECTOR

COMPAIR

1107

SERVICE

CONNECTOR

UART

6

COLUMBUS

B19

3M14

3M15

B15

A15

1

2

3

1

2

3

B9

7M00

T6TU5XBG

COLUMBUS

CTRL

ERR

11

SCALER INTERFACE

7A00
PCA9515ADP

3

2

4A01

4A00

FOR

PDP ONLY

6

7

B18

B21

ADC

7L07

+3V3SWB

EPLD

1P07

(1G50)

31

30

TO

DISPLAY

7L06

+3V3SWB

3L36

B20

4N21

4N22

3L37

3L19

57 56

MST9883C

ANALOG

INTERFACE

EPLD

T2 R2

7N02

EP1C12F256C8N

EPLD

BANK 4

ERR

16

7L04

ERR

3L20

7

3N47

3N46

+3V3SW

1N02

1

2

SDA

3

4

SCL

FOR

DEVELOPMENT

USE ONLY

112

113

ERR

17

SCART ANALOGUE IO

B15

SW_I2C_SDA

SW_I2C_SCL

1802

2

1

JTAG

I2C

1G03

JTAG_TDI_SDA

JTAG_CLK_SCL

1

DMMI

2

CONNECTOR

3838

3837

AF7

AD6

ADDRESS

DATA

FSADDR

FSDATA

7B01

K4D263238F

SDRAM

ERR

14

F_15420_026.eps

060605

Block Diagrams, Testpoint Overviews, and Waveforms

Supply Voltage Overview

29LC4.8E AA 6.

SA2

SA2

SA2

CONNECTIONS

SA1

1M46

11
22

+12V

+5V2

1316

1
2
3

To
Display

4
5

1304

A2

4

3

2

1

A

+12V_A

+12V_+24V

MF + SUPPLY

1317

1
2

To

3

Display

4
5

+12V

1304

A2

SUPPLY

+24Vb

See also Block Diagram

Supply

1306

A1

MAINS
FILTER

Relay

1305

A1

MAINS
FILTER

VSND_POS

1M02

A2

SUPPLY

VSND_NEG

33
44
55

66
77
88

99
10 10

11 11

1M03

1304

4

3

2

1

1306

11

22

1305

11

22

33

1M02

66

55

22

11

TOP CONNECTORS

B16

1J01

(1M46)

N.C

.

N.C

.

N.C

.

N.C

.

1J08

(1M03)

1
2

N.C

.

3
4
5
6

N.C

.

7
8
9

N.C

.

10

SA1

STANDBY

SA2

5500

5

1306

1305

AUDIO

SA3

1M02

+16V+19V

-16V-19V

UFD SUPPY

1J07

+12VUFD

1J08

+5V_UFD

4J01

UFD CONTROL

BACKLIGHT_CTRL

LAMP_ON_OFF

FAN

_SPEED

STANDBY

PROTECT_AUD

POWER_UP_OK

6504

5110

6

6140

7

STANDBY

8

10

CONTROL

+5V2

5723

5707

5711

3759

67106711

3760

2513

6107

7712

7713

7511

7131

RES

2797

2798

CONTROL

5110

RES

7531

5J03

5J04

+12VUNREG

+5V

VTUN

+11V

+12V_A

+12V

+8V6

+5V2

+5V_SW

+16V+19V

-16V-19V

-Vf21

-Vf11

-Vf1

Vp

Vm

B6

B5,B6,B9

SA1

SA1

SA1

N.C.

B16

B16

B16

B16

B16

B16

B16

TUNER & IF

B1

B6

B6

B6

B6

B6

B6

B6

B6

+5VSW

5102

5103

+3V3STBY

HERCULES

B2

+3V3STBY

3265

7215

3264

7216-1

3263

7217

3262

7216-2

+5VSW

+8VSW_TV

SYNC INTERFACE

B3

+3V3STBY

+3V3SW

+5VSW

AUDIO DELAY LINE (RESERVED)

B4

+5VSWI

5501

AUDIO PROCESSING

B5

+3V3SW

+3V3STBY

+5VSW

(Only UFD)

+5V

DC-DC CONVERTER

B6

+12VUNREG

7738

5738

IN OUT

7752

5752

DC/DC

5730

7754

5712

COM

7708

IN OUT

COM

SC_STANDBY

Converter

7730

5757

+5V

+3V3STBY

6708

5709

7710

IN OUT

5704

COM

PWR
REG

PANEL-PWR-CTL

7758

5753
5754

5733

5700

+5VSW

+5VSW_a

+5VSW_b

+3V3STBY

+3V3STBY

+1V8_A

+1V8_B

HERCULES

+5VSW

+8VSW_TV

+3V3STBY

+3V3SW

+5VSW

+5VSWI

+5VD

+3V3SW

+3V3STBY

+5VSW

+5V

+12VUNREG

+12VSW

+8VSW_TV

+5VSWI

6735

+VTUN

+5VSW

5737

(Only LCD)

PAN_VCC

LVDS_VCC

(Only UFD)

+5V

+3V3STBY

+3V3SW

B8

B8

B6

B8

B8

B6

B16

B16

B8

B8

B6

B6

B22

B6

B6

B6

B6

B6

B6

B2

B4,B9,B13,
B14,B19

B1,B2,B3,
B15,B17

B21

B1,B2,B3,
B5,B9,B17

B3,B5,B7,
B8,B9,B11
B12,B13,
B19,B20,
B21

SCALER

B7

+1V8_CORE

+2V5_DDR

+3V3SW

+3V3_IO

+3V3_PLL

SCALER

B8

+3V3SW

5900

5901

5902

5903

5904

5905

5906

5907

7900

IN OUT

COM

7901

IN OUT

COM

SCALER INTERFACE

B9

+3V3SW

+3V3STBY

+5VSWI

+5V

SDRAM

B10

+2V5_DDR

3B01

FLASH / CONTROL

B11

+3V3_IO

+3V3SW

HDMI (Not for EUR Sets)

B12

+3V3SW

+5VHDMI

MUX-SYNC INTERFACE

B13

+3V3SW

+5VSWI

DIGITAL IO (Only for EUR Sets)

B14

+5VSWI

6F00

6F01

1F00

1

DVI

B15

3F20

SCART ANALOGUE IO (Only for EUR Sets)

+5VSW

5908

5909

5910

5911

5F03

+1V8_CORE

+2V5_DDR

+3V3SW

+3V3_IO

+3V3_PLL

+3V3SW

3V3_PLL

3V3_ADC

3V3_DVI

3V3_IO

3V3_LBADC

3V3_LVDSA

3V3_LVDSB

3V3_LVDS

+2V5_DDR

+1V8

+1V8_ADC

+1V8_DV1

+1V8_CORE

+3V3SW

+3V3STBY

+5VSWI

+5V

+2V5_DDR

FSVREF

+3V3_IO

+3V3SW

+3V3SW

+5VHDMI

+3V3SW

+5VSWI

+5VSWI

DDC_5V

DVI _5V

+5VSW

1K01

B17

1K00

B17

B16

B19

B6

B6

B6

B6

B8

B6

B6

B6

B6

B7

B7,
B11,B20

B7,B10

B7

HDMI

VGA

SIDE CONNECTORS

B17

+3V3STBY

5K00

+5VSW

5K01

ADC

B18

+5VSWIA

7K05

IN OUT

COM

COLUMBUS

B19

+3V3SW

5M03

+5VSWI

5M04

EPLD

B20

+3V3SW

+3V3-IO

EPLD

B21

+3V3SW

5P01

7P01

IN OUT

COM

LVDS_VCC

DIGITAL IO (Not for EUR Sets)

B22

1Q03
18

1870

9

10

+5VSWI

B23

+5VSW

D

1304

7

J

1540

5

6Q16

3Q16

3Q17

5Q16

3Q18

CINCH ANALOGUE (Not for EUR Sets)

SIDE-AV

IR / LED / LIGHT-SENSOR

+3V3STBY_1

+5VSW_1

5P02

5P03

+3V3STBY

1K00

+5VSW

1K01

+5VSWIA

+3V3SWB

+3V3SW

+3V3SWA

+5VSWI

+5VSWIA

+3V3SW

+3V3-IO

+3V3SW

+3V3-IO

1V5

1V5-PLL

1V5-INT

LVDS_VCC

+5VSW

DDC_5V

+5VSWI

+5VSW

+5VSW

+3V3STBY

F_15420_027.eps

5

7

060605

1540

1304

B18

B12

J

D

Circuit Diagrams and PWB Layouts

7. Circuit Diagrams and PWB Layouts

LCD Supply 37”: Mains Filter + Standby

1002 D1
1003 C4

1005 B4
1300 E4
1301 E4

1302 B4
1303 C4
1305 G9
1306 G2
1307 E2
1308 C1

1311 E6
1312 E7
1314 C2
1315 F3
1350 D9
2300 C3

2301 C4
2302 D5
2303 E8
2304 D11
2305 F11
2307 E4

2309 F13
2310 D11
2311 C11
2313 F11
2314 F13
2315 C12

2316 D12
2317 C12
2318 E5
2319 B10
2320 D12
2321 C13

12

2323 C3
2324 C4
2325 D6
2327 B10
2328 E1
2329 E2

2330 F10
2331 F10
3300 C3
3301 C2
3302 D2
3303 E2

3304 B5
3305 C4
3306 B141004 G9
3307 F10
3308 C14
3309 E10

34567891011121314

3310 B13
3311 F11
3312 E12
3313 F10
3314 F13
3316 D6

3317 D6
3318 C10
3319 D6
3320 D7
3321 F10
3322 E12

3323 E12
3324 E12
5303 D6
5304 F13
5305 C4
5306 C5

5307 D3
5308 D12
6304 B10
6305 B11
6306 D8
6307 C11

6308 E10
6309 E10
6314 C14
6315 A12
6316 B13
6317 C13

6318 B13
6354 C14
6355 B13
6360 E9
6361 E9
7305 E11

30LC4.8E AA 7.

7306 E13
7307 B14
9301 D14
9302 C12
9303 D5
9304 F10

9308 D12
9309 C5
9310 E11
9311 C14
9312 F13
9315 E3

9316 G3
F410 C1
F411 C2
F412 C2
F413 C2
F414 C2

F415 D2
F416 D2
F417 D2
F418 D2
F419 D2
F420 D8

F421 E8
F422 F9
F423 F9
F424 F2
F524 C14
I297 D5

I299 E5
I410 C3
I411 C5
I412 C5
I413 C10
I415 D8

I416 D4
I419 D2
I424 E9
I444 D8
I445 C8
I810 C11

I811 C11
I812 C11
I813 C11
I814 E10
I815 F10
I816 F10

I817 D11
I820 F10
I821 B4
I822 E12
I823 E12
I824 E12

I825 E13
I826 F13
I827 D7
I828 B13
I829 B14
I830 A13

I832 C13
I833 B14
I834 C14
I835 B10
I836 B10

I837 E13
I838 F13
I839 E11
I840 E11
I841 F11
I842 F10

I844 C4I831 C13
I846 C4
I860 F10
I861 E10
I862 D12
I863 E2

A1 A1

MAINS FILTER + STANDBY

A

2315

330u

I830

6316

BZX384-C33

I828

6355

BYG10

3310

6318

BAS316

2321

330u

330u

I831

I832

7306

I837

47n

2314

I838

5304

47K

100u

6317

AVS10CB

2309

9312

3314

I826

7307

I833

9311

BZX384-C33

I834

I825

56n

4R7

3308

22K

MAINS FILTER

25V_HOT

6304

I836

399V_HOT

BAS316

6315

BZG03-C200

B

1005

V_NOM

1302

500V
1003

V_NOM

MAINS INPUT

C

D

E

95-264Vac

F410

1308

2
1

1002

2
1

2328

F415

100p

F411

2300

470n

I410

2323

470n

3300

9315

COLD GROUND

F413

100p

4M7

F416

F414

F419

1314

PTF/65

T5AH 250V(EUR)
T5AH 250V(AP)
T5AH 250V(US)

F417

4M7

3302

I419

4M7

3303

F412

3301

F418

2329

I863

1307

1

1303

500V

5305

2

14

DMF3547HB60

V

2

5307
1

1300

1

I844

3

3

4

DMF2405H60

F

271V(297V)

F424

To 1306

Standby Audio

G

1306

1
2

GNDHOT

1315

PTF/65

T1AE 250V

9316

3305

220R

2324

I416

GND screw

2307

1301

I821

I846

2301

470n

470p

1

3304

220R

9309

I411

2

14

470n

DMF3547HB60

5306

9303

I299

2318

I412

3

2302

I297

470p

470n

3317

2325

2

14

RELAY -

B3B-EH-A

I413

6309

1N5062

3309

I814

6308

1N5062

3321

I816

I815

22K

3313

3307

I820

I445

470n

2303

I415

F420

10u

I444

3319

1R0

1R0

5303

3316

DTH40203H65

12

43

1311

HEATSINK

GND4

I827

1R0

3320

1312

HEATSINK

1R0

6306

DF06M

F421

GNDHOT

3

(0V)
5V0

COLD GROUND

F423

1305

123

1350

G5PA-1-5VDC

6361

I424

6360

RELAY +

1004

B3B-EH-A

BAS316

BAS316

F422

123

To 1305 To 1306

Standby Audio

2327

1M0

2K7

I842

18K

1u0

2319

470n

I835

3318

470R

I861

AVS1ACP08

2330

9304

I860

2331

6305

BAS316

I811

I812

I810

GBJ6J

56n

2310

9310

4

7305

VDD

76

MODE

VM

23

OSIN

OSOUT

47n

VSS

1

I841

47n

2305

100p

I813

6307

NC

VG

3311

100K

47u 50V

2313

400V_HOT

272V(30V)

10n

9302

56n

2311

400V_HOT

56n

2304

I817

3312

58

100R

I839

I840

2317

5308

9308

I862

330u

2316

2320

3323

I824

3324

100R

I822

I823

3322

100R

100R

3104 313 6082.2

12345678910

11 12

13 14

25V_HOT

1K0

3306

I829

TCET1102(G)

LATCH

F524

6314

6354

BYG10

9301

F_15420_001.eps

A

B

C

BZG03-C200

D

E

F

G

020605