Philips LC4.31A AA Schematic

Colour Television Chassis

ME6

LC4.31A

AA

ME6

G_16150_000.eps

100706

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 13

6. Block Diagrams, Test Point Overviews, and

Waveforms

Wiring Diagram 32” 21
Wiring Diagram 37” 22
Wiring Diagram 42” 23
Block Diagram Supply 37” 24
Block Diagram Supply 42” 25
Block Diagram Video 26
Block Diagram Audio 27
Test Point Overview Small Signal Board 28
I2C Overview 29
Supply Voltage Overview 30

7. Circuit Diagrams and PWB Layouts Diagram PWB
LCD Supply (37”): Mains Filter & Standby (A1) 31 33-38
LCD Supply (37”): Supply (A2) 32 33-38
LCD Supply (42”): Mains Filter + Stdby A (A1) 39 43-48
LCD Supply (42”): Supply A (A2) 40 43-48
LCD Supply (42”): Mains Filter + Stdby B (A3) 41 43-48
LCD Supply (42”): Supply B (A4) 42 43-48
SSB: Tuner and IF (B1) 49 72-81
SSB: Hercules (B2)50 72-81
SSB: Sync Interface (B3)51 72-81
SSB: Audio Delay Line (PDP Only) (B4)52 72-81
SSB: Audio Processing (B5)53 72-81
SSB: DC-DC Converter (B6) 54 72-81
SSB: Diversity Tables B1-B6 55
SSB: Scaler (B7)56 72-81
SSB: Scaler (B8)57 72-81

©

Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.

SSB: Scaler Interface (B9) 58 72-81
SSB: SDRAM (B10) 59 72-81
SSB: Flash / Control (B11)60 72-81
SSB: HDMI (B12) 61 72-81
SSB: MUX-Sync Interface (B13) 62 72-81
SSB: DMMI (B15B) 63 72-81
SSB: Top Connectors (B16) 64 72-81
SSB: Side Connectors (B17)65 72-81
SSB: ADC (B18) 66 72-81
SSB: Columbus (B19) 67 72-81
SSB: Pacific 3 (B20) 68 72-81
SSB: Digital I/O (B22) 69 72-81
SSB: Cinch Analog I/O (B24)70 72-81
SSB: Diversity Tables B9-B20 71
Class D Audio Amplifier (32”) (C) 82 83
Side I/O Panel (32”) (D) 84 85
Side I/O Panel (37” & 42”) (D) 86 87
Keyboard Control Board (26” & 32”) (E) 88 88
Keyboard Control Board (37” & 42”) (E) 89
IR-LED and Light Sensor Panel (J) 90 90
Standby & Audio Panel: Connections (SA1) 91 94-96
Standby & Audio Panel: Standby (SA2) 92 94-96
Standby & Audio Panel: Audio (SA3) 93 94-96

8. Alignments 97

9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 102
Abbreviation List 103
IC Data Sheets 106

10. Spare Parts List 110

11. Revision List 120

89

Published by EL 0667 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16150

EN 2 LC4.31A 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 :

- 32PF7321/79/93/98 : 32” (82 cm), 16:9

- 37PF7321/79/93/98 : 37” (94 cm), 16:9

- 42PF7421/79/93/98 : 42” (107 cm), 16:9

Resolution (HxV pixels) : 1366 x 768

Contrast ratio :

- 32PF7321/79/93/98 : 3200:1

- 37PF7321/79/93/98 : 2400:1

- 42PF7421/79/93/98 : 2800:1

2

Light output (cd/m

- 32” & 37” : 500

- 42” : 550

):

Maximum power (W

1.1.3 Miscellaneous

Power supply:
Mains voltage (V

- 32PF7321/79/93/98 : 110 - 240

- 37PF7321/79/98 : 220 - 240

- 37PF7321/93 : 90 - 276

- 42PF7421/79/98 : 220 - 240

- 42PF7421/93 : 90 - 276

Mains frequency (Hz) : 50 / 60

Ambient conditions:

- Temperature range (°C) : +5 to +40

- Maximum humidity : 90% R.H.

Power consumption:
Normal operation (W) :

- 32PF7321/79/98 : 65

- 32PF7321/93 : 120

- 37PF7321/79/98 : 75

- 37PF7321/93 : 165

- 42PF7421/79/93 : 220

- 42PF7421/98 : 90
Stand-by (W) :

- 32PF7321/79/93/98 : < 1

- 37PF7321/79/93/98 : < 1

- 42PF7421/79/93 : < 2

- 42PF7421/98 : < 1

) : 2 x 15

RMS

):

AC

Response time (ms) : 8

Viewing angle (HxV degrees) :

- 32” & 37” : 176x176

- 42” : 178x178

Tuning system : PLL

TV Colour systems : PAL B/G, D/K, I

: SECAM B/G, D/K, L/L’

Video playback : NTSC M/N 3.58, 4.43

: PAL B/G
: SECAM L/L’

Supported computer formats : VGA (640x480)

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

Supported video formats : 640x480p - 2fH

: 720x576p - 2fH
: 1280x720p - 3fH
: 1920x1080i - 2fH

Presets/channels : 100 presets

Tuner bands : VHF

: UHF
: S-band
: Hyper-band

Dimensions
(WxHxD cm without stand) :

- 32” : 93.5 x 51.6 x 12.0

- 37” : 111.4 x 61.8 x 10.3

- 42” : 124.9 x 69.7 x 11.1

Weight (kg) :

- 32” : 19.2

- 37” : 25.9

- 42” : 32.0

1.1.2 Sound

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

: AV Stereo

Technical Specifications, Connections, and Chassis Overview

1.2 Connection Overview

Figure 1-1 Side and rear I/O connections

UART

I2C

EN 3LC4.31A AA 1.

G_16150_001.eps

100706

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

Mini Jack: Audio Head phone - Out

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

Cinch: Video CVBS - In, Audio - In

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

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

PP

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

/ 75 ohm j

PP

1.2.2 Rear Connections

HDMI1&2: Digital Video/Digital Audio - In

19

18 2

1

E_06532_017.eps

250505

Figure 1-2 HDMI (type A) connector

1 -D2+ Data channel j
2 -Shield Gnd H
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 Jj
20 - Ground Gnd H

Cinch: DVI Audio - In

Rd - Audio - R 0.5 V
Wh -Audio - L 0.5 V

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

CVI-2: VGA: Video RGB - In

1

5

6

11

10

15

E_06532_002.eps

050404

Figure 1-3 VGA Connector

1 -Video Red 0.7 V
2 -Video Green 0.7 V
3 -Video Blue 0.7 V
4-n.c.

/ 75 ohm j

PP

/ 75 ohm j

PP

/ 75 ohm j

PP

5 -Ground Gnd H
6 -Ground Red Gnd H
7 -Ground Green Gnd H
8 -Ground Blue Gnd H
9-+5V

+5 V j

DC

10 - Ground Sync Gnd H
11 - n.c.
12 - DDC_SDA DDC data j
13 - H-sync 0 - 5 V j
14 - V-sync 0 - 5 V j
15 - DDC_SCL DDC clock j

CVI-2: Cinch: Audio - In

Wh -Audio L 0.5 V
Rd - Audio R 0.5 V

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

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

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

/ 10 kohm jq

RMS

/ 10 kohm jq

RMS

/ 75 ohm jq

PP

CVI-1: Cinch: Video YPbPr - In

Gn -V ideo Y 1 V
Bu -Video Pb 0.7 V
Rd - Video Pr 0.7 V

/ 75 ohm jq

PP

/ 75 ohm jq

PP

/ 75 ohm jq

PP

CVI-1: Cinch: Audio - In

Wh -Audio L 0.5 V

/ 10 kohm jq

RMS

EN 4 LC4.31A AA1.

110706

S

Technical Specifications, Connections, and Chassis Overview

Rd -Audio R 0.5 V

Aerial - In

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

Service connector (UART)

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

/ 10 kohm jq

RMS

1.3 Chassis Overview

STANDBY /

A

AUDIO PANEL

SMALL SIGNAL

B

BOARD

CONTROL PANEL

E

Service connector (ComPair)

1 -SDA-S I
2-SCL-S I
3 -Ground Gnd H

2

C Data (0 - 5 V) jk

2

C Clock (0 - 5 V) j

MAINS FILTER &

SUPPLY PANEL

SIDE I/O PANEL

LED PANEL

G_16150_002.eps

A

D

J

Figure 1-4 PWB/CBA locations

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

EN 5LC4.31A 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.

2.2 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

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

61.25 MHz for NTSC (channel 3).

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

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

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

2.3.2 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 Rework on BGA (Ball Grid Array) ICs

General

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

Device Removal

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

Area Preparation

When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.

-9

), or pico-farads (p= x10

-12

-6

),

).

EN 6 LC4.31A AA2.

Safety Instructions, Warnings, and Notes

Device Replacement

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

More Information

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

2.3.4 Lead-free Solder

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

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

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

220-240V 50/60Hz

VHF+S+H+UHF

S

MADE IN BELGIUM

~

128W

BJ3.0E LA

E_06532_024.eps

130606

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 mix of
two alloys).

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

Figure 2-1 Serial number example

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

P

b

Figure 2-2 Lead-free logo

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

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

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

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

• Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to

2.3.5 Alternative BOM identification

In September 2003, Philips CE introduced a change in the way
the serial number (or production number, see Figure 2-1) is
composed. From this date on, the third digit

(example: AG2B0335000001) indicates the number of

number
the alternative BOM (Bill of Materials used for producing the
specific model of TV set). It is possible that the same TV model
on the market is produced with e.g. two different types of
displays, coming from two different O.E.M.s.
By looking at the third digit of the serial number, the service
technician can see if there is more than one type of B.O.M.
used in the production of the TV set he is working with. He can
then consult the At Your Service Web site, where he can type
in the Commercial Type Version Number of the TV set (e.g.
28PW9515/12), after which a screen will appear that gives
information about the number of alternative B.O.M.s used.
If the third digit of the serial number contains the number 1
(example: AG1B033500001), then there is only one B.O.M.
version of the TV set on the market. If the third digit is a 2
(example: AG2B0335000001), then there are two different
B.O.M.s. Information about this is important for ordering

the correct spare parts!

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

2.3.6 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.

in the serial

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 7LC4.31A AA 3.

EN 8 LC4.31A AA4.

s
6

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

E_06532_018.eps

Figure 4-2 Foam bars

G_16150_003.ep

11070

Figure 4-1 Cable dressing (42PF7421/98)

placing a mirror flat on the table under the TV you can easily
see if something is happening on the screen.

4.3 Assy/Panel Removal

The following instructions apply to the 42PF7421/98 TV set.
Other sets slightly differ w.r.t. mechanical construction.

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove

the rear cover.

1. Remove the screws that secure 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.

170504

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

4.3.2 Side I/O Panel

Mechanical Instructions

EN 9LC4.31A AA 4.

3

2

1

Figure 4-3 Side I/O panel

1. Disconnect the cable [1] from the panel.

2. Remove two screws [2].

3. Slide the panel to the right [3] and lift it from the set.

4.3.3 LED Panel

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2

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2

1

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Figure 4-5 Control panel removal -1-

1. Remove the three fixation screws [1] and take out the
panel/bracket combination.

2. Remove the fixation tape [2] from the panel/bracket
combination.

3. Release the two fixation clamps [3] and lift the panel out of
the bracket.

4. Disconnect the cable [4] from the panel.

3

4

Figure 4-4 LED panel

1. Release the fixation clamp [1] and take the panel out of the
bracket.

2. Disconnect the cable [2] from the panel.

4.3.4 Control Panel

The PWB is packed in a separate plastic bracket and needs to
be taken out before the connector on the PWB can be
disconnected.

1

G_16210_075.eps

190106

Figure 4-6 Control panel removal -2-

4.3.5 Small Signal Board (SSB)

Caution: it is absolutely mandatory to remount all different

screws to their original position during re-assembly. Failure to
do so may result in damaging the SSB.

Removal from the set

1. Remove screws [1] that secure the SSB.

2. Disconnect fragile LVDS connector [2] and other
connectors [3].

3. Lift the SSB from the set.

G_16150_006.eps

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EN 10 LC4.31A AA4.

Mechanical Instructions

Removing the SSB

1. Remove screws [9] and take the SSB out of its shielding.

2

3

1

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Figure 4-7 SSB top shielding -1-

Removing the shielding

1. Remove screws [4].

2. Remove screws [5] [6] [7] [8]. During re-assembly, mount
them at their original position.

4

Figure 4-10 SSB

4.3.6 Standby-Audio Panel

9

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1

Figure 4-8 SSB top shielding -2-

7 7 8

5
5

6 6 6 6

Figure 4-9 SSB bottom shielding

5
5

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Figure 4-11 Standby-Audio panel

1. Remove all connectors from the panel.

2. Remove screws [1].

3. Lift the panel from the set, it hinges on the bottom side.

4.3.7 Mains Filter / Stand-by Panel

2

1

2

Mechanical Instructions

EN 11LC4.31A AA 4.

2

1

1

2

2

1

2

2

2

2 2

Figure 4-12 Mains filter / Stand-by panel

1. Disconnect all cables [1] from the panel.

2. Remove the fixation screws [2] from the panel.

3. Remove the panel, it hinges on the right side.

4.3.8 LCD Panel

To remove the LCD-panel, carry out the following steps:

1. Remove SSB from the set as earlier described.

2. Disconnect the cables [1] from the “L” and the “R”
loudspeakers (see Figure “Loudspeaker cables”).

3. Important: Unplug the LVDS connector [2] on the LCD
panel (see Figure “LVDS connector”), or better: remove the
cable completely.
Be careful, as this is a very fragile connector/cable!

4. Unplug the connectors [3] of the Side I/O panel, the Side
Control panel, and the LED panel on the SSB (see Figure
“SSB connectors for side I/O, side control panel, and
LED”). Release all cables from their clamps.

5. Remove fixation screws [4] of brackets and lift the brackets
from the set. See Figure “Fixation screws LCD panel -1-”.

6. Remove screws [5].

7. Remove screws [6]. See Figure “Fixation screws LCD
panel -2-”.

8. Unplug connectors [7].

9. Lift the metal subframe (together with all PWBs) from the
LCD panel.

Check if you have unplugged the fragile LVDS cable.

10. After removal of the metal subframe, you can lift the LCD
panel from the set. See Figure “LCD panel”.

G_16150_012.eps

110706

Figure 4-13 Loudspeaker cables

Figure 4-14 LVDS connector

3

G_16150_013.eps

110706

2

G_16150_014.eps

120706

G_16150_015.eps

120706

Figure 4-15 SSB connectors for side I/O, side control panel, and

LED

EN 12 LC4.31A AA4.

Mechanical Instructions

4.4 Set Re-assembly

4

4

4

5

5

4

5

5

4

Figure 4-16 Fixation screws LCD panel -1-

6

6

7

4

5

5

G_16150_016.eps

120706

6

6

4

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.

4

6

6

Figure 4-17 Fixation screws LCD panel -2-

6

6

G_16150_017.eps

120706

Figure 4-18 LCD panel

G_16150_018.eps

110706

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

EN 13LC4.31A AA 5.

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 schematics,
test points are indicated with a rectangle box around Fxxx or
Ixxx, in the layouts with a half-moon.
Perform measurements under the following conditions:

• Television set in Service Default 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) offer 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 read-out 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 one of the "Service" jumpers on the TV board during
cold start and apply mains (see Figures "Service jumper").
Then press the mains button (remove the short after start­up).
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.

SDM

G_16210_087.eps

200106

Figure 5-1 Service jumper (component side)

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

Table 5-1 SDM default settings

Region Freq. (MHz)

Europe, AP-PAL/Multi 475.25 PAL B/G
NAFTA, AP-NTSC, LATAM 61.25 (ch. 3) NTSC M

• 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).

Default
system

SDM

G_16210_088.eps

Figure 5-2 Service jumper (solder side)

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.

200106

EN 14 LC4.31A AA5.

00035 HSD21E1 1.00/S21LXN 1.00 SDM
ERR 0 0 0 0 0
OP 152 167 015 081 252 127 019

Figure 5-3 SDM menu example

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; or press the following key
sequence on the remote control transmitter: “062596”
directly followed by the OSD 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 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.

• 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.

Service Modes, Error Codes, and Fault Finding

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 HSD21E1 1.00/S21LXN 1.00 SAM
ERR 0 0 0 0 0

OP 152 167 015 081 252 127 019

. Clear Clear ?
. Options
. Tuner
. White Tone
. Audio
. NVM Editor

G_16210_089.eps

200106

. SC NVM Editor
. Test Pattern
. ComPair Mode On

Figure 5-4 SAM menu example

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.YY. This is the software identification of the
main microprocessor:
– A= the project name.
– 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-versio

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 read-out 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.

n no.

G_16210_090.eps

110706

Service Modes, Error Codes, and Fault Finding

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. Test Pattern. This will trigger the scaler to generate a
checkerboard test pattern. Only applicable to PDP sets.

15. 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
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 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 button.

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

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

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. This also exits the SAM menu.
Caution: If you turn the television set “off” by removing the
mains (i.e., unplugging the television) without using the
POWER 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)

EN 15LC4.31A AA 5.

1 00035 HSD21E1 1.00/S21LXN 1.00 CSM
2 CODES 0 0 0 0 0

3 OP 152 167 015 081 252 127 019
4 26PF5321/10
5 AAAAAA/B.CC
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50
0 AVL Off

G_16210_091.eps

200106

Figure 5-5 CSM menu example

Menu Explanation

1. Indication of the decimal value of the operation hours
counter, Main/Scaler software version (see “Service
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. aaaaaa / b.ccc Firmware identification of the Pacific 3 and
the OTC:
– aaaaaa = the firmware version of the Pacific 3 (Pixel+)
– b.ccc = the firmware version of the OTC (for the 1000

page TXT decoder).

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).

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

9. Displays the picture setting information.

10. Displays the sound setting information.

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:

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.

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 SMART
PICTURE button on the remote control transmitter, or

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

EN 16 LC4.31A AA5.

Service Modes, Error Codes, and Fault Finding

Then:

1. Press the SMART 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 select 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 value of the selected parameter.

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

8. Press the MENU RIGHT key to store the new value.

9. Press the MENU key to exit the PERSONAL picture mode.

White Line around Picture Elements and Text

If:

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

Then:

1. Press the SMART 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 select 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
SHARPNESS.

6. Press the MENU LEFT/RIGHT keys to increase or
decrease the value of the selected parameter.

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

8. Press the MENU RIGHT key to store the new value.

9. Press the MENU key to exit the PERSONAL picture mode.

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 SMART
PICTURE button on the remote control transmitter,

Then:

1. Press the SMART 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 select 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
COLOUR.

6. Press the MENU LEFT/RIGHT keys to increase or
decrease the value of the selected parameter.

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

8. Press the MENU RIGHT key to store the new value.

9. Press the MENU key to exit the PERSONAL picture mode.

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.
You do not have to know anything about I
yourself because ComPair takes care of this.

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

Specifications

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

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

• Automatically (by communicating with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I
ComPair can access the I
ComPair can send and receive I
the micro controller 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 micro controller of the
television is working correctly and only to a certain extent.
When this is not the case, ComPair will guide you through
the fault finding tree by asking you questions (e.g. Does the

screen give a picture? Click on the correct answer: YES /
NO) and showing you examples (e.g. Measure test-point I7
and click on the correct oscillogram you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next

step in the fault finding process.

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

2

C/UART bus of the television.

2

C/UART commands to

2

C level) and

2

C commands

2

C/UART level.

Service Modes, Error Codes, and Fault Finding

EN 17LC4.31A AA 5.

How to Connect

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

TO

UART SERVICE

CONNECTOR

PC VCR I2CPower

9V DC

E_06532_021.eps

TO
I2C SERVICE
CONNECTOR

180804

Figure 5-6 ComPair interface connection

How to Order

• ComPair order codes (EU/AP/LATAM):

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

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

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

• Starter kit SearchMan32 software: 3122 785 60050.

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

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

• ComPair firmware upgrade IC: 3122 785 90510.

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

• Transformer (UK): 4822 727 21633.

• ComPair interface cable: 3122 785 90004.

• ComPair interface extension cable: 3139 131 03791.

• ComPair UART interface cable: 3122 785 90630.

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

How to Order

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

• LVDS tool Service Manual:
3122 785 00810.

• LVDS cable 30p (for LC4.3):
3122 785 90821 (available soon).

• LVDS cable 41p -> 31p for HD PDPs (dual -> single LVDS):
3122 785 90831 (available soon).

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.

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.

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

5.4.2 LVDS Tool

Introduction

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

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

When operating, the tool will show a small (scaled) picture on
a VGA monitor. Due to a limited memory capacity, it is not
possible to increase the size when processing high-resolution
LVDS signals (> 1280x960). Below this resolution, or when a
DVI monitor is used, the displayed picture will be full size.

Generally this tool is intended to determine if the SSB is
working or not. Thus to determine if LVDS, RGB, and sync
signals are okay.

How to Connect

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

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/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.

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).

EN 18 LC4.31A AA5.

Service Modes, Error Codes, and Fault Finding

Table 5-2 Error code overview

Error Error Description Check Item Diagram

0 No Error
1 Mis-match of TV (Hercules)

SW and Scaler SW

Software
versions

2 +12V from PSU error PSU A

2

3Plasma I

C error (only for

N.A. N.A.

plasma sets)

2

4I

C error while

7801 B7 + B8
communicating with the
Genesis Scaler

5 +5V protection 7752 B6

2

6 General I

C error;
communication between
ADC, analogue tuner, and/or
Columbus I

2

C error while

7I

2

C failed

1102, 7L01,
7M00

7L01 B18

communicating with ADC

2

8I

C error while

7C01 B11
communicating with the
Scaler EEPROM

2

C error while

9I

7207 B2
communicating with the
Hercules EEPROM (NVM for
TV).
Remark: when the Hercules
EEPROM is defective, the
Hercules should operate with
its default values.

2

10 I

C error while

1102 B1
communicating with the PLL
tuner

2

11 I

C error while

7M00 B19
communicating with the 3D
combfilter IC-7M00
(Columbus)

2

12 I

C error while

N.A. N.A.
communicating with iBoard
uP (only iTV sets)

2

C error while

13 I

N.A. N.A.
communicating with the
HDMI decoder IC-7D03 (only
for NAFTA and AP)

14 Read-write error with the

7B01 B10
Scaler SDRAM

2

15 I

C error while

7001 T
communicating with the OTC

2

C error while

16 I

7N00 B20 +
communicating with EPLD or
Pacific III

2

C error while

17 I

N.A. N.A.
communicating with the
Digital Module (only for digital
sets)

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.

N.A.

B1 + B18
+ B19

B21

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 / HDMI functionality of the TV set!

• Always note 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 5-3 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

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
plug.

2. Short circuit an SDM jumper (keep short-circuited).

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

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

5. Keep pressing the P+/Ch+ button until the set has started
up and the SDM is shown.

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
its standby mode (red LED lights up).

8. Restart the set.

Service Modes, Error Codes, and Fault Finding

EN 19LC4.31A AA 5.

5.7.3 Flash New Scaler Software

When you need to flash new scaler software, follow the
instructions in ComPair. Make sure you put the set in one of the
Service Modes, SDM/SAM/CSM, before you start flashing.
This reduces the risk of the set hanging during the flashing
procedure.

5.7.4 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

2

C lines are working correctly (3.3 V).

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 (ro lling hor izontal 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.

5.7.5 Video Processing

No Power

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

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

3. If the connector 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 fault finding 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.

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.

5.7.6 Power Supply

There are two types of Power Supply Units used in the various
models of this chassis. The following information applies to the
Supply Unit which is used in the 32 and 37” models.

Check Fuse

The power supply (various models are used) contains one fuse
near the AC input connector X002.

1. Check with power supply in “off” state by means of ohmic
measurement.

2. Fuse X102 may open in case of severe lightning strikes
and/or failures in the power supply.

3. Check the standby signal at pin 10 of X200. ON is HIGH,
OFF is LOW. During standby mode only the 3V3 is present
at pin 10.

Protections Concept on Power Supply Board (two models)

1. 12 V output (pin 8 of X200): Short-circuit protected by 2.5
A fuse X610. Over-voltage protection when output voltage
is more than 40% above nominal value.

2. Vaudio output (+18 or +24 V, depending on power
supply model used); (pin 1 of X200): Short-circuit proof
(+18 V version has 2.5 A fuse X660). Over voltage
protection when output voltage is more than 40% above
nominal value.

3. 3V3STBY output (pin 3&4 of X200): Short-circuit proof
with auto-restart. Over voltage protection when output
voltage is more than 40% above nominal value.

4. 24 V output (for inverter X520 & X530): Short-circuit
proof with auto-restart. Over voltage protection when
output voltage is more than 40% above nominal value.

Standby Mode

1. Apply a 12 ohm load resistor of sufficient power rating to all
outputs mentioned above (+12 V, +18/ 24 V, +3V3 and +24
V). Connect the STBY pin (pin 10 of X200) to logical “L”
(low), i.e. to GND.

2. Over an input voltage range of 90 V

to 276 VAC only the

AC

+3V3 STBY output shall be up.

Normal Mode:

1. Apply a 12 ohm load resistor of sufficient power rating to all
outputs mentioned above (+12 V, +18/ 24 V, +3V3 and +24
V). Connect the STBY pin (pin 10 of X200) to logical “H”
(high), i.e. to the +3V3 STBY output via a 2,2 k pull up
resistor.

2. Over an input voltage range of 90 V

to 276 VAC all

AC

outputs shall be up. The voltage on the +3V3 STBY output
shall be 3.3 V over the entire input voltage range. The
voltage on the big 400 V capacitor on the power supply
should also be 400 V ± 10%.

EN 20 LC4.31A AA5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

E_06532_012.eps

131004

Block Diagrams, Test Point Overviews, and Waveforms

s

050706

WIRING 32”

6. Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 32”

21LC4.31A AA 6.

RIGHT

SPEAKER

INVERTER

INVERTER

X530

X520

12P

POWER

SUPPLY

8520

3P

X220

X200

12P

8J02

B

SSB

LVDS CONNECTION

TO DISPLAY

30P

8P06

30P

31P

1P06

8903

C

CLASS D
AUDIO
AMPLIFIER

12P

1J02

1003

3P

1002

9P

8J03

4P

1001

3P

1J03

8903

8J04

1J04(1M52)

9P

6P

1K00(1M21)

8870

INVERTER

12P

D

LEFT

SPEAKER

SIDE AV

3P

1684

14P

8520

14P

AC POWER

INLET

POWER

IN

8002

X002

2P3

TUNER

12P

1K01(1M06)

3P

1K02

8K01

8684

12P

1304

IR/LED/LIGHT

J

SENSOR

(1M06)

KEYBOARD CONTROL

E

6P

1870

G_16160_020.ep

Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 37”

WIRING 37” LCD

22LC4.31A AA 6.

RIGHT

SPEAKER

8902

INVERTER

14P

8520

B

3P

3P

SA

7P

1736

1735

1M02

SSB

STANDBY

1739

12P

1316

30P

1N17

9P

14P

1319

12P

1317

1309

11P

1J01

1304

3P

4P

8337

10P

1J00

8322

8J04

1J03

3P

1M46

8P06

11P

9P

1J04

1306

1307

1305

1M03

2P3

4P

3P

10P

8101

1K00

8304

6P

8309

LCD PANEL

8306

8305

TO DISPLAY

LVDS

8870

8903

8521

8302

LCD SUPPLY

A

2P3

1306

3P

1309

4P

1304

7P

1M02

LEFT

SPEAKER

INVERTER

12P

KEYBOARD CONTROL

E

1M01

3P

TUNER

1K04

1K02

11P

3P

8K01

3P

1305

8002

AC INLET

8187

1308

2P3

SIDE AV

D

11P

1M36

LED

J

SWITCH
PANEL

G_16160_021.eps

6P

1870

050706

Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram 42”

WIRING 42” LCD

RIGHT

SPEAKER

8902

INVERTER

14P

8520

2P3

2P3

2P3

7P

SA

1736

1735

1738

1M02

1316

8903

STANDBY / AUDIO

9P

1739

12P

1319

14P

1303

1320

4P

3P

1304

1309

4P

3P

8302

4P

1M10

8521

1M46

11P

23LC4.31A AA 6.

8304

2P3

1306

4P

1307

3P

1305

LCD PANEL

10P

1M03

8306

8307

8305

LVDS

30P

8309

8303

8320

4P

1303

3P

1320

MF + SUPPLY

A

3P

4P

1304

1309

7P

1M02

INVERTER

LEFT

SPEAKER

CONTROL BOARD

E

1M01

3P

8101

B

31P

1N17

SSB

8P06

8J04

11P

1J01(1M46)

8337

1177

UART

10P

1J00(1M03)

14P

1442

1151

3P

Compair

3P

8322

1J04(1M52)

1103

3P

Tuner

9P

6P

1K00(1M21)

11P

1K04(1M06)

3P

1K02

2P3

3P

1306

1B06

8136

1305

3P

1420

1308

2P

4P

8002

AC INLET

1307

3P

1C05

8870

12P

SIDE I/O

D

11P

1M36

J

6P

1870

LED
SWITCH
PANEL

G_16160_022.eps

050706

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Supply 37”

SUPPLY 37"

MAINS FILTER + STANDBY

A1

1308

2
1

MAINS INPUT

95-264Vac

1314

T5AH

5305
5306

MAINS

FILTER

24LC4.31A AA 6.

SUPPLY

A2

14

7002

BIAS SUPPLY

VCC

3000

15

14

OA

12

OB

10

FI

5017

5001

4

2

7007

6

7

7008

10

9

2319

+

399V_HOT

6318

9311

3318

25V_HOT

6315

6316

14

2

6317

6314

1350

3

2

4

1

6307
GBJ6J

-

RES

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

STP15NK50

STP15NK50

60246025

7005

7006

PRINTED

COMPONENT

5010

400V_HOT

2059

5012

2060

TCET1102

2

3

5011

5002

5025

5026

7003

3057

3031

DC_PROT

6019
STPS20L40CFP

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

SA1

1304

CONNECTIONS

+12V_A

+12V_+24V

1316

1319

1M10

1
2

TO

3

DISPLAY

4
5

1
2
3

TO

4

DISPLAY

5

1

N.C.

2

6306
DF06M

6040

2512

2049

2009

6029

6030

2021

+12V_A

5507

STANDBY: LOW = ON
HIGH = STBY

7531

5020

5018

5019

7131

STANDBY

VSND_POS

VSND_NEG

RES

GND_SND

VTUN

+11V

+12V

+8V6

+5V2

+5V_SW

DC_PROT

1M02

7
6
5

TO 1M02

4

B08B

3

AUDIO
2
1

1M03

TO 1MO3

SA2

STANDBY

7
4

1M46

11

9
4

2
1

7

B01B

B16

SSB

TO 1M46

B01B

B16

SSB

G_16160_023.eps

050706

5022

1007
T5A

HOT GROUND

COLD GROUND

2303

1315

T1A

+

-

1305

11
22
33

1306

11
22

SA2

1305

1306

1307

STANDBY

1
2

3
4

RES

+5V2

CONTROL

7505/7509/7560

5504

5505

Prot-OVV
PROT_AUDIOSUPPLY

SA2
SA1

7100
7101
7105

CONTROL

6153

3101

3104

3150

3127

3100

6150

STP15NK50

6151

7102

3155

COLD GROUND

HOT GROUND

5104

3V MAX
1V MAX STBY

3108

3156

6156

HOT GROUND COLD GROUND

HOT GROUND COLD GROUND

5500

5

3

2

1

5105

14

7501
TCET1102

2

3

14

7150

3157

TCET1102

2

3

RES

7507
7506
7512

STANDBY

7511

6504

6140

3124

PROT-OVV

3509

5103

6122

OVERVOLTAGE
PROTECTION

6107

2513

3113

RES

2141

5506

5110

6

7

8

10

3128

3158

Block Diagrams, Test Point Overviews, and Waveforms

SUPPLY 42"

Y

Y

3

B

6

2

6

B

3

6

3

Block Diagram Supply 42”

25LC4.31A AA 6.

MAINS FILTER + STANDBY PART A

A1

1308

MAINS INPUT

MAINS FILTER + STANDBY

A3

PART B

SUPPLY PART A

A2

5400
5401
5403

MAINS_L

MAINS_N

1400

1400

3A15

3A15

5D00
5D01
5D03

FILTER

MAINS
FILTER

MAINS

1
2

6506
DF06M

-

COLD GROUND

1450

2

1

+

2503

HOT GROUND

14

2

3

4

HOT GROUND

COLD GROUND

1401

T1A

1D50

3

6807
GBJ6J

-

1B06

11

22

1C05

+

33

6H07
GBJ6J

-

BIAS SUPPLY

14

12

10

CONTROL

6153

14

12

10

3000

5007

5001

4

2

3101

3U00

5U07

5U01

4

2

3810

6156

6157

400V_HOT_B

3H10

2H15
China

2816

3406

2H16

2815
China

+

1305

11
22
33

1306

11
22

1307

11
22
33
44

25V_HOT_A

400V_HOT_A

SA2

1305

1306

1307

A4

25V_HOT_B

400V_HOT_B

STANDBY

7017
7018

SOFT

START

CURRENT

PROTECTION

+5V2

CONTROL

7505/7509/7560/

5504

5505

SUPPLY PART B

7U17
7U18

SOFT

START

CURRENT

PROTECTION

+

+

3007

Prot-OVV
PROT_AUDIOSUPPLY

11

3U07

11

7001
MC34067P

11

OSCC

CONTROL

7

ERROR

11

SOST

5

VREF

7004
7009

PROTECTION

7U01
MC34067P

OSCC

CONTROL

7

ERROR

SOST

5

VREF

7U04
7U09

VOLTAGE

PROTECTION

OVER

VOLTAGE

OVER

VCC

VCC

OA

OB

15

OA

OB

FI

7100
7101
7105

BIAS SUPPLY

15

FI

3104

3150

3127

3100

6150

6080

6077

5017

5008

7007

HIGH

6

SIDE

DRIVE

7

7008

LOW

10

SIDE

DRIVE

9

7102

6151

6U79

5U08

7U07

HIGH

6

SIDE

DRIVE

7

7U08

LOW

10

SIDE

DRIVE

9

6078

2003

7005

STP15NK50

7006

STP15NK50

COLD GROUND

HOT GROUND

3V MAX
1V MAX STBY

3108

3155

6U77

7U05

STP15NK50

7U06

STP15NK50

3028

5010

8

7

5009

5040

3

5

HOT GROUND COLD GROUND

5

5104

3

2

1

5105

3156

14

6156

3157

2

HOT GROUND COLD GROUND

3U28

6U78

5U105U17

2U03

8

7

5U09

5U40

3

5

HOT GROUND COLD GROUND

2143

5002

5500

2143

5U02

7002
TCET1102

9

10

11
12

13
14

15

16

6

7

8

10

7501
TCET1102

2143

7150
TCET1102

3

7U02
TCET1102

9

10

11
12

13
14

15

16

5027

5025

3158

5U25

5U26

5028

5026

5110

3128

7030

DC_PROT

6019
STPS20L40CFP

3

2

1

6021
STPS20L40CFP

1

2

3

6504

6140

5103

3124

PROT-OVV

3U57

DC_PROT

6021
STPS20L40CFP

1

2

3

DC_PROT

3022

7010
TL431ACD

3030

7507
7506
7512

3509

6107

2513

6122

3113

OVERVOLTAGE
PROTECTION

3U52

DC_PROT

3U39

3U22

7U10
TL431ACD

3U30

3057

3052

6021
STTH2003CFP

6014

3025

STANDBY

7511

RES

2141

5506

3U24

3U25

VS Voltage

3026

Adj.

VS Voltage
Adj.

3U26

2512

2020

2022

7531

1U07

T5A

+12V

+24Va

+12V_A

5507

7131

STANDBY

STANDBY: LOW = ON
HIGH = STBY

+24V

2U22

2B91

6B91

6B93

2B93

1304

VTUN

+11V

+12V

+8V6

RES

+5V2

+5V_SW

1303

5B93

5B91

5B92

SA1

1304

44
33
22
11

SA2

1303

11
22
33
44

CONNECTIONS

+12V_A

+12V_+24V

STANDBY

+24V_2

VSND_POS

VSND_NEG

G_16210_102.eps

DC_PROT

1316

1M10

1M03

1M46

1319

(1317)

1M02

290606

1
2

TO

3

DISPLA

4
5

1
2

N.C.

3
4

TO 1M0

7

B01

B1

4

SSB

11

9

TO 1M4

1

B01

B1

2

SSB

7

1
2

TO

3

DISPLA

4
5

7
6
5

SA

TO 1M0

4

SA

3

AUDIO

2
1

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Video

VIDEO

TUNER & IF

B1

1102
UV1318ST

RF

IN

CINCH ANALOGUE I/O

B23

1R07

VIDEO

OUT

Pr

1R06

Y

Pb

SIDE AV

D

1302

(1002)

VIDEO

IN

1301

(1001)

1

5

S-VHS

2

SVHS

+5SW_a

67

TUNER

4

5

SCL

SDA

SEL_IF_SDM

B2

SC1_CVBS_IN

FRONT_YCVBS_IN

FRONT_C_IN

3

4

+VTUN

1

CVI_Pr_IN

CVI_Y_IN

CVI_Pb_IN

( ) 37” - 42” only

9

IF-TER

11

3104

7101

1304

(1M36)

2106

6104

4R68

4R70

4R69

2
4

1104

7

VIF1

2

8

VIF2

3

RF_AGC

1106

SIF1

7

2

SIF2

8

FRONT_C_IN

FRONT_Y_CVBS_IN

SC1_CVBS_IN

SC1_CV1_DMMI_R_Pr_IN

SC1_CV1_DMMI_G_Y_IN

SC1_CV1_DMMI_B_Pb_IN

SIDE

B17

CONNECTIONS

1K01

(1K04)

FRONT_YCVBS_IN

2

FRONT_C_IN

4

B2

7217
TDA15021H

24

25

31

29

30

HERCULES

AC

DC

4R64

AGC

Detect

QSS Mixer

AM Demod.

SC2_AV3_C_IN

CVBS_COMB

SC2_Y_IN_1

Sound

B13

B13

B13

Traps

7206

CVBS1

QSS/FM
AM

26LC4.31A AA 6.

MUX-SYNC INTERFACE

B13

7208

EF

85

B_OSD

G_OSD

Vertical &
East-West
Geometry

Sync Sep

H-OSC
H-Shift

H-Drive

CVBS/Y

B23

B22

Fast Blanking

PC-VGA/

RO

86

GO

BO

7210

EF

87

B3

VDRB

22

VSYNC

HOUT

HOUT

67

B18

7L61/7L62

EF

7L71

EF

CINCH ANALOGUE I/O

1R02

10

1

15

5

1

6

CVI-2

DIGITAL IO

1

19

HDMI-1

1

19

HDMI-2

5R03

2
3

5R05

13

11

14

1Q02

1
3
4
6
7
9

18 2

10
12

1Q03

1
3
4
6
7
9

18 2

10
12

RGB Matrix

Blue & Black

Strech

Gamma Corr.

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

Skin Tone

SAT

U/V Tint

Saturation

SCAVEM

Peaking

on text

SCAVEM
U/V Delay

YOUT

VOUT

UOUT

74 75 76 70 71 72

YUV

YUV in/out

H/V

VIN

UIN

N.C.

INTF_V_OUT

INTF_U_OUT

INTF_Y_OUT

R_OSD

YIN

Video

Switch

+

Control

59

64

51
52

58

48

55
43

R_OTC_SDTV

7209

EF

G_OTC_SDTV

B_OTC_SDTV

SYNC INTERFACE

7436-2

7436-1

43

21

Vsync_SDTV

Hsync_SDTV

ADC

7L51/7L52

EF

7L72

VIN VOUT

COM

SCL
SDA

5R02

RINA|Pr

GINA|YINA

5R04

5R06

BINA|Pb

VSYNC_IN

FBL_HSYNC_PIN16_IN

RX2+A

RX2-A

RX1+A

RX1-A

RX0+A

RX0-A

RXC+A

RXC-A

RX2+B

RX2-B

RX1+B

RX1-B

RX0+B

RX0-B

RXC+B

RXC-B

7L01
P3563M-LF

2
3

11

6

9

37
38

CONV.

B13

B13

B13

B22

B22

B22

B3
B3
B3

B22

B22

B3

A/D

B23
B23
B23

B12

FE00

R_OTC_SDTV

FE01

G_OTC_SDTV

FE02

B_OTC_SDTV

SC1_R_CVI_Pr_IN

SC1_G_CVI_Y_IN

SC1_B_CVI_Pb_IN

BINA|Pb

GINA|YINA

B13

B13

SC1_CV1_DMMI_B_Pb_IN

B13
B13

RINA|Pr

Vsync_SDTV

VSYNC_IN

FBL_HSYNC_

PIN16_IN

Hsync_SDTV

COL_Di(1-9)

COL_YA(1-9)

SC1_CV1_DMMI_R_Pr_IN

SC1_CV1_DMMI_G_Y_IN

GINA|YINA

HDMI

7D03
TDA9974AEL

A9
A10
A12
A13

PANELLINK

A15

RECEIVER

A16
F16

G16

C10

C9
C13
C12
C16
C15
G14
F14

BINA|Pb

RINA|Pr

HDMI

7E01

27

3

7

25

1

5

7E02

11

15

1

1

2

12

13

13

12

7E03

1
3

5
2

B10

B19

7E00

A2
A1

D1

17

14

11

22

12

14

2

19

15

14

10,11

SDRAM

7B01
K4D263238I

COLUMBUS

7M00
T6TU5XBG

7M01
MSM56V16

14
15
4

9

R-PR-ADC

G-Y-ADC

B-PB-ADC

7604

5

1

SDRAM

1Mx32x4

COLUMBUS

DIGITAL COMB

FILTER

DRAM

512Kx16x2

SC1_R_CVI_Pr_IN
SC1_G_CVI_Y_IN
SC1_B_CVI_Pb_IN

RGB|CVI_HDA_SEL

HDMI_VCLK

HDMI_Y(0-7)

HDMI_CbCr(1-7)

7604

PC_HD_DET

SD_HD_SEL

+2V5_DDR

COL_A

H_HDMI
V_HDMI

R_PR+

G_Y+

B_PB+

AVSYNC

8

AHSYNC

4

95

COL_DQ

SOG

B7

B7

COL_Do(1-8)

COL_YB(1-8)

B7

FSDATA

FSADDR

B13
B13
B13

B7

C3

D2

C2

B2

L3

L4

C14
B14

D16

SCALER

7801
GM1501-LF-CF

ANALOG

INPUT
PORT

FRAME
STORE

CONTROL

DVI/HDMI

INPUT
PORT

SCALER

GRAPHIC

ZOOM

OUT BLENDER

OSD CONTROLLER

BRIGHTNESS/CONTRAST/HUE/SAT

VIDEO
ZOOM

UART

INTERFACE

MICRO

CONTROLLER

INTERNAL

RAM

B9

SCALER

DISPLAY

TIMING

GEN.

EXTERNAL

ROM

INTERFACE

AE16
AF16

AE15
AF15

AE14
AF14

AF12
AF11

AF13
AE12

OCMDATA

OCMADDR

PACIFIC 3

B20

TXB0­TXB0+

TXB1­TXB1+

TXB2­TXB2+

TXB3­TXB3+

TXBC­TXBC+

OR

TXB0+
TXB0­TXB1+
TXB1­TXB2+
TXB2­TXB3+
TXB3­TXBC+
TXBC-

FLASH/CONTROL

B11

7C03
M29W400DT55N6F

FLASH

ROM

512Kx8

4N02
4N01

4N04
4N03

4N06
4N05

4N10
4N09

4N08
4N07

29
28
32
31
35
34
41
40
37
38

1N12

TXO0­TXO0+

1N13

TXO1­TXO1+

1N14

TXO2­TXO2+

1N15

TXO3­TXO3+

1N11

TXOC­TXOC+

7N00
T6TF4AFG

LVDS

PACIFIC3

(Only For PIXEL+)

1N16

LVDS_VCC

LVDSA­LVDSA+

LVDSB­LVDSB+

LVDSC­LVDSC+

LVDSD­LVDSD+

LVDSCLK­LVDSCLK+

OR

LVDS_VCC

LVDSA­LVDSA+

LVDSB­LVDSB+

LVDSC­LVDSC+

LVDSD­LVDSD+

LVDSCLK­LVDSCLK+

TXO0-

103

TXO0+

102

TXO1-

101

TXO1+

100

TXO2-

99

TXO2+

98

TXO3-

93

TXO3+

92

TXOC-

96

TXOC+

95

1
11
12
13
14
15
16
17
18
19
20
24
25
26
21
22

1N17

1
11
10
12
14
13
15
19
18
20
27
26
28
22
21
23

G_16160_024.eps

050706

TO DISPLAY (26” & 32”)TO DISPLAY (LCD 37” & 42”, PDP 42” & 50”)

Block Diagrams, Test Point Overviews, and Waveforms

AUDIO

C

E

Block Diagram Audio

27LC4.31A AA 6.

TUNER & IF

B1

1102
UV1318St

RF IN

SCL

CINCH ANALOGUE I/O

B23

1R07

AV

AUDIO

L/R IN

1R08

CVI-2

AUDIO

L/R IN

1R06

CVI-1

AUDIO

L/R IN

1F01

DVI

AUDIO

L/R IN

SIDE AV

D

1302

(1002)

AUDIO

L/R IN

DIGITAL I/O

B22

HDMI 1

HDMI 2

1Q02

1

18 2

1Q03

19

ONTROL

KEYBOARD CONTROL

E

Channel+

Channel-

Menu

Volume+

Volume-

Power

IR/LED/LIGHT-SENSOR

J

REMOTE

CONTROL

LIGHT

SENSOR

LED

GREEN

LED
RED

1309(1703)
1310(1704)
3324(1705)
1311(1701)
1312(1702)
1313(1706)

TUNER

4

5

SDA

AV1_Audio_INL

AV1_Audio_INR

AV2_Audio_INL

AV2_Audio_INR

HD_AudioINL

HD_AudioINR

DVI_D_AudioINL

DVI_D_AudioINR

L_FRONT_IN

R_FRONT_IN

( ) For 37” - 42”

1

18 2

19

SELECT

IFOUT

LED

11

SEL_IF_SDM

B2

HDMI_A

HDMI_B

F158

IF-TER

B22

1304

(1M36)

KEYBOARD

RC

LIGHT-SENSOR

+3V3STBY

LED_SEL

PC-TV-LED

( ) For 37” - 42”

2106

6104

7101

DIGITAL I/O

SIDE_AudioINL

SIDE_AudioINR

B17

1K01

(1K04)

66

88

B12

7D03
TDA9975

1684

(1M01)

( ) For 37” - 42”

1870

(0345)

1106

1
2

7Q03

1

12

4

11

2

15

SIDE CONNECTORS

HDMI

HDMI

A5
A7

10-BIT

B7

VIDEO

CONVERTER

SIDE CONNECTORS

B17

1K02

(1M01)

22

1K00

33

11

22

55

44

66

+3V3STBY

LED_SEL

PC-TV-LED

4

5

3

13

9

10

Analog_AudioSEL1
Analog_AudioSEL2

HD_AudioINL

HD_AudioINR

DVI_D_AudioINL

DVI_D_AudioINR

SIDE_AudioINL

SIDE_AudioINR

7D04
UDA1334ATS

DAC

14

1
3

16

2

B3

SIF1

SIF2

Analog_AudioINL

Analog_AudioINR

B7

HDMI_AudioINL

HDMI_AudioINR

LSIPDP_DVB_SEMISTANDBY

SYNC INTERFACE

3431

7430

6430

3432
RES

HERCULES

B2

7217
TDA15021H

29

AD Conv.

Std Stereo

Decoder

AUDIO

SELECT

ADC/DAC

KEYBOARD

RC_OUT

AM Demod.

30

33

34

35

49

50

56

57

53

54

+3v3STBY

+5VSW

P50_LIN2_ITV_IR_SW_RST

QSS Mixer

AM

QSS/FM

I2S

Processor

B2

120

97

115

123

107

7217
TDA15021H

AUDIO

CONTROL

Vol/Treb/

Bass

Features

DACs

HERCULES

HERCULES

114

116
119

102

111
122

127

10

11

4211

61

4212

60

62

63

36

37

SEL_IF_SDM

4204
4205

SERVICE

SDM

STATUS_1
STATUS_2

EXT_MUTE

SOUND-ENABLE

SC_STANDBY

AV2_DMMI_SW

1202
24M576

AUDOUTLSR
AUDOUTLSL

B1

B15A
B15A

B5

B5
B6

B15B
B15A

B15B

AUDIO PROCESSING

B5

OUT_MUTE

OUT_MUTE

DC-DC CONVERTER

B6

PANEL-PWR-CTL

B8

SC_STANDBY

B2

AUDIO-R

AUDIO-L

PROTECT_AUD

SOUND-ENABLE

POR_AUDIO

7601
TS482ID

2

6

7602
74HC08PW

2

3

&

1

&

6

5
9

8

&

10

+12VSW

7755

B16

1J04

1

7

7606

MUTE

HP_DET_R_DC_1
SOUND_ENABLE

POWER_DOWN
EXT_MUTE

5756 5757

3758

3755

+3V3STBY

3759

7756

C

1002

33
11

77

88
99

OR

SOUND-ENABLE

FOR 32” ONLY

SA3

1739
1

3

8
9

7

FOR 37”- 42” ONLY

B17

HP_DET_R_DC_1

B2

B16

B2

7754

5700

7758

3750

AUDIO AMPLIFIER

(CLASS-D)

AUDIO-R

AUDIO-L

AUDIO

AUDIO-L

AUDIO-R

SOUND-ENABLE
POR-CLASSD

PROT_AUDIOSUPPLY

SIDE
CONNECTORS

HP_LOUT

HP_ROUT

PAN_VCC

LVDS_VCC

+3V3SW

1K01

(1K04)

10 10

12 12

11 11

7004

PHASE

INVERTER

10

6

18

D

1304

(1M36)

7001
TDA8931T

COMPARATOR

7

4

IN+

7000
TDA8931T

COMPARATOR

7

4

IN+

7700
TDA7490

PWM

stby-

OSC

mute

PWM

7701÷7707

SOUND

ENABLE

7708÷7711

AUDIO SUPPLY
PROT, CIRCUIT

SIDE AV

POWER

OUT

HVPI

POWER

OUT

HVPI

5702

3

5701

23

PROT1

DCPROT

6703

6702

HEAD_PH_L

HEAD_PH_R

HP_DET_R_DC1

16

13

16

13

3764

3761

3717

3718

-16 V-19V

+16 V+19V

5731

5730

1M02

7

TO 1M02

1

A

SUPPLY

5

1303

(1010)

7

1
2

( ) For 37” - 42”

1001

4

3

RIGHT

SPEAKER

2

1

LEFT

SPEAKER

1736

1
2
3

LEFT

1735

SPEAKER

1
2
3

RIGHT

SPEAKER

HEADPHON

G_16160_025.eps

050706

Block Diagrams, Test Point Overviews, and Waveforms

Test Point Overview Small Signal Board

F101 D2
F102 F2
F104 F2
F105 F2
F106 E2
F107 E2
F108 D2
F109 D2
F110 C2
F111 C2
F112 C2
F113 C2
F115 F2
F116 F3
F117 F3

F201 A3
F202 A2
F203 A3
F204 C3
F205 C3
F206 C3
F207 C2
F208 C3
F209 C3
F210 D4
F211 B3
F212 B3
F213 B2
F214 B3
F215 B3

F216 C4
F217 A3
F218 B3
F219 A3
F220 B4
F221 B4
F222 C3
F223 B2
F224 B3
F225 B3
F226 B4
F227 C4
F228 B4
F229 C3
F230 B4

3139 123 6125.2

F231 B3
F232 B4
F233 C4
F234 C4
F235 C4
F236 D4
F237 C3
F238 D3
F239 C2
F240 C2
F241 C3
F242 C3
F243 C3
F244 C2
F245 B2

F246 C2
F247 B2
F248 C3
F249 B2
F250 C4
F251 C2
F252 C2
F253 C2
F254 C2
F255 C4
F256 C4
F257 C4
F258 A3
F262 C4
F263 C4

F264 C4
F404 B4
F405 B4
F406 A4
F407 B4
F408 B4
F409 A4
F410 A4
F411 C4
F412 C4
F501 B3
F502 B3
F503 B2
F504 B3
F505 B4

F601 A2
F602 A2
F603 B2
F604 B2
F605 B2
F700 A8
F701 B7
F710 B7
F717 B6
F736 A4
F737 B4
F738 B4
F743 B4
F754 B7
F755 B8

F800 C10
F801 D8
F802 D7
F803 C7
F804 C7
F900 D8
F901 D7
F902 D8
F903 D7
F904 D7
F905 C8
F906 C8
F907 C7
F908 D7
F909 D7

F910 C8
FB01 C10
FC00 C7
FC01 C7
FC02 D7
FC03 C7
FC04 D6
FC05 D7
FC06 C6
FC07 C6
FC08 C6
FC09 C6
FC10 C6
FC11 C6
FD01 E10

FD02 E10
FD03 E10
FD04 E10
FD05 E9
FD06 E9
FD07 E10
FD08 E10
FD09 E10
FD10 D9
FD11 E10
FD12 D10
FD13 D9
FD14 E10
FD15 E9
FD17 E10

FE00 E7
FE01 E8
FE02 E8
FE03 E7
FE04 D6
FE05 E8
FE06 E8
FE07 D10
FE08 E7
FE10 E8
FE11 D7
FE12 D7
FE13 E8
FJ00 A7
FJ01 A6

FJ02 A5
FJ03 A6
FJ04 A6
FJ05 A6
FJ06 A5
FJ07 A6
FJ08 A5
FJ09 A3
FJ10 A3
FJ11 A2
FJ12 A2
FJ13 A2
FJ14 A2
FJ15 A10
FJ16 A10

FJ17 A10
FJ18 A10
FJ19 A10
FJ20 A10
FJ21 A7
FJ22 A7
FJ23 A7
FJ24 A7
FJ25 A7
FJ26 A7
FJ27 A10
FJ28 A3
FJ29 A2
FJ30 A7
FJ31 A6

FJ32 A4
FJ33 A7
FJ34 A5
FJ35 A5
FJ36 A5
FJ37 A5
FJ38 A5
FJ39 A6
FJ40 A5
FK00 C1
FK01 C1
FK02 C1
FK03 C1
FK04 C1
FK05 D1

FK06 D1
FK07 D1
FK08 D1
FK09 D1
FK10 D1
FK11 B1
FL01 C5
FL02 C5
FL03 C4
FL04 C5
FM01 D5
FM02 D5
FM03 D5
FM04 D5
FM05 D5

28LC4.31A AA 6.

FN01 B9
FN02 A9
FN03 B9
FN09 B9
FN10 B8
FN11 B9
FN12 A9
FN13 B10
FN15 B9
FN16 B9
FN17 B9
FN18 B9
FN19 B9
FN20 B9
FN24 B10

FN25 B9
FN32 B8
FN33 B8
FN34 A9
FN35 B9
FN36 B10
FN38 A10
FN39 A10
FN40 B9
FN41 B10
FN42 B10
FN43 B10
FN44 A10
FN46 A10
FN47 A10

FN48 A10
FN49 A10
FN50 A10
FN51 B10
FN52 B10
FN53 B10
FN54 B10
FN55 B10
FN56 B10
FN57 B10
FN58 B9
FN59 B10
FQ01 E9
FQ02 E5
FQ03 F9

FQ04 E10
FQ05 E10
FQ06 F9
FQ07 F9
FQ08 F10
FQ09 F10
FQ10 F9
FQ11 F9
FQ12 E9
FQ13 F9
FQ14 F10
FQ15 E6
FQ16 F10
FQ17 F10
FQ18 F10

FQ19 F10
FQ20 F10
FQ21 F10
FQ22 F10
FQ23 F10
FQ24 F10
FQ25 F10
FQ26 F10
FR00 E4
FR01 E7
FR02 E7
FR03 F4
FR04 E7
FR05 E8
FR07 E5

FR08 E4
FR09 E3
FR10 E5
FR11 E5
FR12 E5
FR13 E5
FR14 E5
FR15 E5
FR16 F4
FR17 E4
FR18 E5
FR19 E5
FR20 E5
FR21 E5
FR22 F4

FR23 E5
FR24 E6
FR25 E5
FR26 E5
FR27 E5
FR28 F5
FR29 E6
FR30 E9
FR31 F8
FR32 F6
FR33 F8
FR34 F8
FR35 E8
FR36 E8
FR37 F6

FR38 E6
FR50 F5
FR54 E5
FR85 E3
I101 E2
I102 E2
I103 D2
I104 D2
I105 D2
I106 D2
I110 D2
I112 E2
I113 E2
I201 A2
I202 A2

I203 C2
I204 C2
I205 C3
I206 C3
I207 C3
I208 C3
I209 C3
I210 B3
I211 B4
I212 B3
I213 B3
I214 C3
I215 B3
I217 C4
I218 B4

I219 B4
I220 C4
I221 B2
I222 B3
I223 B2
I224 B4
I225 B3
I226 C3
I227 C3
I228 B4
I229 C3
I230 B4
I231 C3
I232 B2
I233 C3

I234 C2
I235 B2
I236 B2
I237 C2
I238 B2
I239 B4
I240 B4
I241 A3
I242 A3
I243 B4
I244 C4
I246 B4
I247 B4
I248 B4
I254 D4

I255 B4
I256 B4
I257 B4
I258 C3
I259 C4
I262 B2
I264 B2
I265 C4
I266 C4
I267 C4
I268 B4
I269 B2
I270 C4
I271 B4
I272 C4

I273 C2
I274 B2
I275 B3
I277 B4
I278 B4
I283 C3
I284 C3
I285 C4
I288 C3
I289 A2
I290 A3
I291 A2
I292 A2
I293 A3
I294 A2

I297 B2
I298 C4
I430 B2
I440 D4
I443 C4
I449 B4
I450 B4
I451 B4
I452 A3
I453 B2
I454 B1
I455 D4
I501 A3
I502 A4
I503 A3

G_16160_007.eps

I504 A3
I505 A3
I506 A3
I507 A3
I602 A2
I603 A2
I604 A2
I605 A2
I606 B2
I607 B2
I608 A1
I610 A2
I611 B2
I612 B2
I613 B2

040706

I614 B2
I615 B2
I616 B2
I617 A3
I618 A2
I619 B2
I620 D3
I621 B1
I701 A5
I702 A4
I704 B7
I705 A5
I706 A6
I708 A6
I709 A6
I710 A6
I711 B6
I712 B6
I714 B6
I715 B6
I716 B6
I717 B6
I718 B6
I719 A6
I720 B6
I721 B6
I722 B6
I723 B6
I724 B6
I725 B6
I726 B6
I731 B5
I732 B5
I733 A5
I734 A4
I735 A4
I736 B5
I740 B5
I741 B5
I742 B5
I747 B7
I748 B7
I753 B7
I754 B7
I755 B7
I756 B8
I757 B7
I758 B7
I760 B8
I762 A5
I764 B7
I800 C6
I801 D7
I802 C7
I803 C7
I804 D8
I805 C6
I806 C7
I807 D7
I808 D7
I809 C7
I810 C7
I811 D10
I812 D8
I813 C10
I815 D8
I816 D8
I817 D8
I818 D6
I819 C7
I820 C8
I822 C7
I823 D8
I824 C7
I900 C10
I901 C8
I902 D8
I903 D8
I904 C8
I905 D8
I906 D7
I907 D7
I908 C7
IA00 D8
IA03 B6
IA05 D8
IA06 D8
IA07 D8
IA08 B7
IA09 C8
IA10 C7
IB02 C9
IB03 C9
ID00 D10
ID01 E9
ID08 E9
ID09 D10
ID10 E9
ID11 D10
ID13 E9
ID14 D8
ID15 E10
ID18 E10
ID19 E10
ID20 E10
ID22 E10
ID24 E10
ID25 D10
ID28 E9
IE00 E7
IE01 E8
IE02 E8
IE03 D8
IE04 E7
IE05 E7
IE06 E7
IE07 E7
IE08 E7
IE09 E7
IE10 E8

IE11 E8
IE12 E8
IE13 E7
IE14 E7
IE15 E7
IE16 E7
IE17 E7
IE18 E7
IE19 E7
IE20 E8
IE21 E7
IE22 E8
IE23 E8
IE24 E7
IE25 E8
IE26 E8
IE27 D7
IE28 E8
IE29 E7
IE30 E7
IE32 D7
IE33 D7
IE34 D7
IE35 E8
IE36 E8
IE37 E8
IE38 E8
IE39 E8
IE40 E7
IE42 E8
IE43 E6
IE44 D6
IE45 E7
IE46 D7
IE47 E8
IE48 E8
IE49 E8
IE50 E7
IJ01 A4
IJ02 A4
IJ03 A4
IJ04 A4
IJ05 A5
IJ06 A4
IJ07 A3
IJ08 A5
IJ09 A4
IJ10 A4
IJ11 A4
IJ12 A3
IJ13 A4
IJ14 A4
IJ15 A8
IK00 B1
IK01 B1
IK02 B1
IK03 B1
IK04 B1
IK05 B1
IK16 B1
IK17 C1
IK18 D1
IL01 C5
IL02 C5
IL03 C5
IL05 D4
IL06 D5
IL07 D4
IL09 C4
IL10 B5
IL11 C5
IL12 C5
IL13 C5
IL14 C5
IL15 C4
IL17 C5
IL18 C5
IL19 C5
IL20 C5
IL21 B5
IL22 C5
IL23 B4
IL24 C5
IL25 C5
IL26 C5
IL27 C5
IL28 C5
IL29 C5
IL30 C5
IL31 C5
IL32 C5
IL33 E4
IL34 D4
IL35 D4
IL36 D4
IL37 E4
IL38 C5
IL39 C5
IL40 C4
IM00 D5
IM01 D5
IM02 D5
IM03 D5
IM04 D6
IM05 D5
IM06 D5
IM07 D5
IM08 D4
IM09 D5
IM10 D5
IM11 D5
IM12 D4
IM13 D4
IM15 D5
IM16 D5
IM17 D5
IM18 D5
IM20 D5
IN01 A8
IN02 A8

IN03 A8
IN04 A9
IN05 A9
IN06 A10
IN07 A10
IN08 A10
IN09 B9
IN10 B9
IN11 B10
IN12 B10
IN13 B10
IN14 B10
IN15 B10
IN16 B8
IN17 B8
IN18 B8
IN19 B8
IN20 A10
IQ01 F9
IQ02 E9
IQ03 F9
IQ04 F9
IQ05 E5
IQ06 E4
IQ08 E4
IQ09 E3
IQ10 E3
IQ12 E3
IQ13 E4
IQ14 E3
IQ16 F9
IQ17 F9
IQ18 F10
IR00 F4
IR01 E4
IR02 E4
IR03 E4
IR04 E3
IR05 E4
IR06 F8
IR07 E8
IR08 E6
IR09 E6
IR10 E8
IR11 F8
IR12 E8
IR16 E4
IR17 E5
IR22 E4
IR28 E5
IR50 E5
IR51 E5
IR54 E5
IR58 E4
IR59 E4
IR60 E4
IR61 E5
IR62 E5
IR63 E4
IR64 E5
IR65 E4
IR66 E4
IR67 E4
IR68 E4
IR69 E4
IR81 E4

I2C Overview

I²C

HERCULES

B2

Block Diagrams, Test Point Overviews, and Waveforms

SCALER

B8

B1

TUNER & IF

29LC4.31A AA 6.

B19

COLUMBUS

B18

ADC

7217
TDA15021H

HERCULES

SET

PROCESSOR

109
108

ERR

6

NVM_WP_HERC

104

122

112
113

+3V3STBY

3232

3233

+3V3STBY

3249

DC-DC CONVERTER

B6

+3V3STBY

SC_STANDBY

CINCH ANALOGUE I/O

B23

SWHW_I2C_SDA
SWHW_I2C_SCL

3248

56

7207

M24C16

EEPROM

7

NVM

ERR

9

3759

7756

3247

ERR

17

7221

+3V3SW

3750

7758

+3V3SW

3298

7220

+3V3SW

1G03

Reserved
for DMMI

1

2

3297

SDA
SCL

3904

N1 N2

7801

GM1501H

SCALER

ERR

4

ADDRESS

ADDRESS

3903

DATA

DATA

+3V3STBY

3902

B7

M1

M2

P3
P4

NVM_WP_SCALER

AF5

+3V3_IO

3838

AF7

AD6

3901

SCALER

+3V3SW

3818

OCMADDR

3817

OCMDATA

3837

JTAG_TDI_SDA
JTAG_CLK_SCL

FSADDR

FSDATA

3102

54

1102

UV1318S

TUNER

ERR

10

3122

UART_TX

3123

UART_RX

FLASH / CONTROL

B11

5 6

7C01

M24C32

7

EEPROM

7C03

M29W400D

ERROM

1802

2
1

JTAG

I2C

3101

SDA_IO
SCL_IO

ERR

8

B10

3125

+3V3STBY

3120

SDRAM

K4D263238F

3124

SDA
SCL

SERVICE

CONNECTOR

COMPAIR

3121

SERVICE

CONNECTOR

7B01

SDRAM

ERR

14

1101

1107

1
2
3

UART

3L19

RES

3L18

38 37

7L01

P3563M

ADC

ERR

7

5 6

7D01

M24C02

EEPROM

256x8

6

7

3D09

3D10

3D01

3D03

5 6

7D00

M24C02

EEPROM

256x8

B22

DOC_SDAA
DOC_SCLA

DOC_SDAB
DOC_SCLB

DIGITAL I/O

1F02

16
15

1F03

16
15

2x HDMI

CONNECTOR

PACIFIC3

B20

4N30
4N31

198 200

7N00

1

18 2

19

T6TF4AFG

PACIFIC3

MISC

ERR

16

SDA_DMA_BUS1_DISP
SDA_DMA_BUS1_DISP

SDA_PF3
SCL_PF3

202
204

192
191
194
188
187
193

SSDA
SSCL

SPI_SO

SPI_SCK

SPI_CS

SPI_WP

SPI_RST

SPI_SI

3N21

3N20

+3V3SW

1N03

1
2
3
4

FOR PACIFIC3

PROGRAMMING (N.S.)

5
6

7N02

M25P05

1
3

Flash

7

512k

2

1N17

(1G50)

31
30

TO

DISPLAY

+3V3SW

1N04

1
2

SDA

3

SCL

4

FOR

DEVELOPMENT

USE ONLY (N.S.)

3M14

3M15

A15 B15

7M00

B12

T6TU5XBG

COLUMBUS

CTRL

ERR

11

HDMI

3D05

3D06

75 74

K16

7D03

TDA9974AEL

HDMI

PANELLINK

RECEIVER

B9

K15

J16

ERR

13

J15

SCALER INTERFACE

7A00
PCA9515ADP

3
2

4A01

4A00

+5VHDMI_A

+5VHDMI_B

1
2
3

FOR PDP ONLY

(Depending on screen manufacturer)

(OPTIONAL PIXEL+)

G_16160_026.eps

050706

Block Diagrams, Test Point Overviews, and Waveforms

Supply Voltage Overview

SUPPLY LINE OVERVIEW

TOP CONNECTORS

B16

SUPPLY

PANEL 26”- 32”

(PSU)

SUPPLY

PANEL 37”/42”

(PSU)

TO 1M46

SA1

STBY-SUPPLY

TO 1M03

SA1

STBY-SUPPLY

TO 1M02

A2

SUPPLY 37”

TO 1M02

A4

SUPPLY 42”

X002

1J02

1
2
3
4
5
6
7

X200

8
9
10
11
12

1J01

(1M46)

1
2
3
4
5
6

1M46

7
8
9
10
11

1J00

(1M03)

1
2
3
4
5
6

1M03

7
8
9
10

RES

SA3

1M02

6
5

2

1M02

1

(Only For 37”/42” Sets)

N.C

.

N.C

.

N.C

.

N.C

.

N.C

.

N.C

.

N.C

.

AUDIO

+16V+19V

-16V-19V

1J07

1J08

4J01

26” SETS

POWER_DOWN
STANDBY
BACKLIGHT_CTRL
LAMP_ON_OFF

37”/42” SETS

+12VUFD

+5V_UFD

UFD CONTROL

BACKLIGHT_CTRL

LAMP_ON_OFF

FAN_SPEED

STANDBY

PROTECT_AUD

POWER_UP_OK

5723

5707

5711

7712

3759

67106711

3760

7713

2797

2798

5J03

5J04

VP

+3V3STBY

+12VSW

+5V

+16V+19V

-16V-19V

-Vf21

-Vf11

-Vf1

Vp

Vm

1J03

30LC4.31A AA 6.

TUNER & IF

B1

B6

1003

1

C

B1,B2,B3,
B5,B8,B9,

B3,B6

B5,B6,B9

B6,B16

B16

B16

B16

B6

B6

B6

B6

B6

B6

B6

B6

B6
B6

B6

B6

B6

B6
B6

B8

B8

B6

B8

B8

+5VSW

+VTUN

+3V3STBY

HERCULES

B2

+3V3STBY

3265

3264

3263

3262

+5VSW

+8VSW_TV

+3V3SW

SYNC INTERFACE

B3

+3V3STBY

+3V3SW

+5VSW

+5V

+12VSW

AUDIO DELAY LINE

B4

+5VSWI

5501

AUDIO PROCESSING

B5

+3V3SW

+3V3STBY

+5VSW

+5V

SCALER

B7

+1V8_CORE

+2V5_DDR

+3V3SW

+3V3_IO

+3V3_PLL

5102

5103

7215

7216-1

7217

7216-2

+5VSW

+5VSW_a

+5VSW_b

+VTUN

+3V3STBY

+3V3STBY

+1V8_A

+1V8_B

HERCULES

+5VSW

+8VSW_TV

+3V3SW

+3V3STBY

+3V3SW

+5VSW

+5V

+12VSW

(FOR PDP SETS ONLY)

+5VSWI

+5VD

+3V3SW

+3V3STBY

+5VSW

+5V

+1V8_CORE

+2V5_DDR

+3V3SW

+3V3_IO

+3V3_PLL

B16

B16

B16

B16

B16

B6

B6

B6

B6

B6

DC-DC CONVERTER

B6

+12VSW

5709

3718

STEP

DOWN

CONTR

SC_STANDBY

+5V

5704

SCALER

B8

+3V3STBY

+3V3SW

SCALER INTERFACE

B9

+3V3SW

+3V3STBY

+5VSWI

+5V

(Supply to Tuner & Hercules)

7738

5738

IN OUT

COM

7752

5752

DC/DC

Converter

7730

5730

PWR

REG

5757

7754

PANEL-PWR-CTL

(For 37”-50” Large Screen)

7758

5717

7758

7708

IN OUT

COM

5900
5901
5902
5903
5904
5905
5906
5907

7900

5908

IN OUT

COM

7901

IN OUT

COM

5909
5910
5911

+12VSW

+8VSW_TV

5753

+5VSWI

5754

6735

+VTUN

5733

+5VSW

5737

(For 26”-42” Screen)

PAN_VCC

LVDS_VCC

5700

+3V3SW

5713

7754

+3V3STBY

+3V3STBY

+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

+5V

B14
B14

B6,B16

B8

B2

B8

B4,B9,B19,
B13,B23

B6

B1

B1,B2,B3,B5,
B17,B22,B23

B20

B6

B2,B3,B5,B7,
B8,B9,B11,B12
B13,B19,B20

B6

B1,B2,B3,B5,
B8,B9

B6

B6

B7

B7,B11

B6

B7,B10

B18

B6

B7

B6

SDRAM

B10

+2V5_DDR

FLASH / CONTROL

B11

+3V3_IO

+3V3SW

HDMI

B12

+5VHDMI_A
+5VHDMI_B

+3V3SW

MUX-SYNC INTERFACE

B13

+3V3SW

+5VSWI

DIGITAL IO

B22

+5VSW

1Q02

18

DVI

1Q03

18

DVI

SCART ANALOG IO

B23

+5VSW

1R02

3R01

9

VGA

B17

+3V3STBY

3R02

10

+5VSWI

SIDE CONNECTORS

5K00

+5VSW

5K01

3B01

5D06
5D00
5D01
5D02

7D02

IN OUT

COM

6R01

3R04

5D05
5D03
5D04

5R01

+3V3STBY_1

+5VSW_1

+2V5_DDR

FSVREF

+3V3_IO

+3V3SW

+5VHDMI_A
+5VHDMI_B

+3V3SW

VDDA_3V3PLL

VDDA_3V3
VDDD_3V3

VDDI_3V3

VDDC_1V8
VDDA_1V8
VDDD_1V8

+3V3SW

+5VSWI

+5VSW

+5VHDMI_A

+5VHDMI_B

+5VSW

DDC_5V

+5VSWI

+3V3STBY

1K00

+5VSW

1K01

B19

B8

B6

B6

B6

B6

B12

B12

1J03

B16

1K01

B17

5

1304

7

D

ADC

B18

+5VSWIA

7L02

IN OUT

COM

+2V5_DDR

5L21

COLUMBUS

B19

+3V3SW

5M03

+5VSWI

5M04

P ACIFIC3

B20

+3V3SW

7N04

IN OUT

COM

7N03

IN OUT

COM

LVD S_VCC

CLASS D AUDIO AMPLIFIER

C

1003

3

(Only For 32” Sets)

D

1304

7

(Only For 32” Sets)

J

1870

5

5001

SIDE-AV

IR / LED / LIGHT-SENSOR

5L01
5L11
5L17
5L19

5N04

5N06

5N05

5N03

3001

+5VSWIA

+3V3SWB

VDDP

VADC

VPLL

VMPLL

+2V5_DDR

VDDC

+3V3SW

+3V3SWA

+5VSWI

+5VSWIA

+3V3SW

+1V5

1V5CORE

+1V5PLL

+2V5PLL

+2V5VDD

LVD S_VCC

VP

VP_SGN

+5VSW

+3V3STBY

G_16160_027.eps

050706

B18