PHILIPS L04L AB Service Manual

Colour Television Chassis

SL5

SL6

SL7

L04L

AB

SL7

SL6

SL5

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis
Overview 2

2. Safety Instructions, Warnings, and Notes 4

3. Directions for Use 6

4. Mechanical Instructions 7

5. Service Modes, Error Codes, and Fault Finding 10

6. Block Diagrams, Testpoint Overviews, and

Waveforms

Wiring Diagram 21
Block Diagram Supply and Deflection 22
Testpoint Overview Mono Carrier 23
Block Diagram Video 24
Testpoint Overview CRT & LTI Panel 25
Block Diagram Audio/Control 26
I2C and Supply Voltage Overview 27

7. Circuit Diagrams and PWB Layouts Diagram PWB
Mono Carrier: Power Supply (A1) 28 40-45
Mono Carrier: Diversity Table for A1 29 40-45
Mono Carrier: Deflection (A2) 30 40-45
Mono Carrier: Diversity Table for A2 31 40-45
Mono Carrier: Tuner IF (A3) 32 40-45
Mono Carrier: Hercules (A4) 33 40-45
Mono Carrier: Features & Connectivities (A5) 34 40-45
Mono Carrier: Class D - Audio Amplifier (A6) 35 40-45
Mono Carrier: Audio Amplifier (A7) 36 40-45
Mono Carrier: Rear I/O Cinch (A8) 37 40-45
Mono Carrier: Front Control (A9) 38 40-45
Mono Carrier: DVD Power Supply (A10) 39 40-45
CRT Panel (B1) 46 48
CRT Panel: Eco Scavem (B2) 47 48
Side I/O + Headphone Panel (SL5) (D) 49 50
Side I/O + HP Panel + Top Control (SL6) (D) 51 52
Side I/O + HP Panel (SL7) (D) 53 54
Top Control Panel (E) 55 55

©

Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.

Linearity & Panorama Panel (G) 56 56
LTI/CTI Interface Panel (H) 57 58
Front Interface Panel (J) 59 59
Front Interface Panel (J) 60 61
Main Switch Panel (For SL5 Styling) (M) 62 63

8. Alignments 65

9. Circuit Descriptions, List of Abbreviations, and IC
Data Sheets 72
Abbreviation list 82
IC Data Sheets 83

10. Spare Parts List 84

11. Revision List 84

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Published by TY 0765 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 16820

EN 2 L04L AB1.

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connections

1.3 Chassis Overview

Notes:

• Described specifications are valid for the whole (LATAM)
product range.

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

1.1 Technical Specifications

1.1.1 Reception

Display type : CRT-DV-RF
Screen size : 29” (74 cm), 4:3
Tuning system : PLL
Color systems : NTSC M, or

: TriNorma

Sound systems : BTSC, or

: BTSC + SAP
Channel selections : 181, full cable
IF picture carrier : 45.75 MHz
Aerial input : 75 ohm, F-type
A/V Connections : PAL B/G (pb)

1.1.2 Miscellaneous

1.2 Connections

Note: The following connector color abbreviations are used

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

1.2.1 Top Control and Front / Side Connections

FRONT I/O

RED

IR LIGHT SENSOR

LED

TOP CONTROL

VOLUME-+-+PROGRAM

SIDE I/O

(OPTIONAL)

P

Audio output: : 2 x 5 W

Power supply:

- Mains voltage range : 100 - 250 V_ac

- Mains frequency : 50 / 60 Hz

Ambient conditions:

- Temperature range : +5 to +45 deg. C

- Maximum humidity : 90% R.H.

Power consumption:

- Normal operation : ≈ 83 W

- Standby : < 1 W

R AUDIO L VIDEO

Figure 1-1 Top control and Front / Side connections

Audio / Video In

Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.2 V_rms / 10 kohm jq
Rd - Audio - R 0.2 V_rms / 10 kohm jq
Bk - Headphone 8 - 600 Ohm / 4 mW ot

1.2.2 Rear Connections

75 Ohm

VIDEO

L/Mono

AUDIO

MONITOR

OUT

Y

Pb

R

Pr

COMPONENT VIDEO INPUT

AV1

IN

AV2

IN

V

L

R

V

L

R

Figure 1-2 Rear connections

Aerial In

- F-type Coax, 75 ohm D

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S-VIDEO

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Monitor Out

Ye - Video (CVBS) 1 V_pp / 75 ohm kq
Wh - Audio - L 0.5 V_rms / 1 kohm kq
Rd - Audio - R 0.5 V_rms / 1 kohm kq

YUV In

Bu - U 0.7 V_pp / 75 ohm jq
Rd - V 0.7 V_pp / 75 ohm jq
Gn - Y 0.7 V_pp / 75 ohm jq

Technical Specifications, Connections, and Chassis Overview

AV1 In

Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.5 V_rms / 10 kohm jq
Rd - Audio - R 0.5 V_rms / 10 kohm jq

AV2 In

Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.5 V_rms / 10 kohm jq
Rd - Audio - R 0.5 V_rms / 10 kohm jq

AV2 In (SVHS)

1 -Ground GND H
2 -Ground GND H
3 -Y 1 V_pp / 75 ohm jq
4 -C 0.3 V_pp / 75 ohm jq

1.3 Chassis Overview

B1

B2

CRT

ECO
SCAVEM

CRT PANEL

TOP CONTROL PANEL

EN 3L04L AB 1.

E

SIDE AV PANEL +

D

HEADPHONE

LTI/CTI INTERFACE

H

PANEL

LINEARITY &

G

PANORAMA PANEL

Figure 1-3 PWB location

MONO

CARRIER

FRONT INTERFACE PANEL

POWER SUPPLY

LINE DEFLECTION

TUNER IF

HERCULES

FEATURES & CONNECTIVITIES

CLASS D AUDIO AMPLIFIER

AUDIO AMPLIFIER

REAR I/O CINCH

FRONT CONTROL

DVD POWER SUPPLY

E_14480_046.eps

J

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

270204

EN 4 L04L AB2.

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

Index of this chapter:

2.1 Safety Instructions

2.2 Maintenance Instructions

2.3 Warnings

2.4 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.

• Wear safety goggles when you replace the CRT.

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

• General repair instruction: as a strict precaution, we advise

you to re-solder the solder connections through which the
horizontal deflection current flows. In particular this is valid
for the:

1. Pins of the line output transformer (LOT).

2. Fly-back capacitor(s).

3. S-correction capacitor(s).

4. Line output transistor.

5. Pins of the connector with wires to the deflection coil.

6. Other components through which the deflection current
flows.

Note: This re-soldering is advised to prevent bad connections
due to metal fatigue in solder connections, and is therefore only
necessary for television sets more than two years old.

• Route the wire trees and EHT cable correctly and secure
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, to prevent the cord from touching the CRT,
hot components, or heat sinks.

• 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 Maintenance Instructions

We recommend a maintenance inspection carried out by
qualified service personnel. The interval depends on the usage
conditions:

• When a customer uses the set under normal
circumstances, for example in a living room, the
recommended interval is three to five years.

• When a customer uses the set in an environment with
higher dust, grease, or moisture levels, for example in a
kitchen, the recommended interval is one year.

• The maintenance inspection includes the following actions:

1. Perform the “general repair instruction” noted above.

2. Clean the power supply and deflection circuitry on the
chassis.

3. Clean the picture tube panel and the neck of the picture
tube.

2.3 Warnings

• In order to prevent damage to ICs and transistors, avoid all
high voltage flashovers. In order to prevent damage to the
picture tube, use the method shown in figure “Discharge
picture tube”, to discharge the picture tube. Use a high
voltage probe and a multi-meter (position V
until the meter reading is 0 V (after approx. 30 s).

V

Figure 2-1 Discharge picture tube

• 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 prevents circuits
from becoming unstable.

2.4 Notes

2.4.1 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

). Discharge

DC

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Safety Instructions, Warnings, and Notes

EN 5L04L AB 2.

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.

2.4.2 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

-9

), or pico-farads (p= 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.

2.4.3 BGA (Ball Grid Array) ICs

Introduction

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

BGA Temperature Profiles

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

2.4.4 Lead-free Soldering

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

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

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

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

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

-12

2.4.5 Alternative BOM identification

The third digit in the serial number (example:
AG2B0335000001) indicates the number of the alternative
B.O.M. (Bill Of Materials) that has been used for producing the
specific TV set. In general, it is possible that the same TV
model on the market is produced with e.g. two different types
of displays, coming from two different suppliers. This will then
result in sets which have the same CTN (Commercial Type
Number; e.g. 28PW9515/12) but which have a different B.O.M.
number.
By looking at the third digit of the serial number, one can
identify which B.O.M. is used for the TV set he is working with.
If the third digit of the serial number contains the number “1”

-6

),

).

(example: AG1B033500001), then the TV set has been
manufactured according to B.O.M. number 1. If the third digit is
a “2” (example: AG2B0335000001), then the set has been
produced according to B.O.M. no. 2.

This is important for

ordering the correct spare parts!

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

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

MODEL :

PROD.NO:

32PF9968/10

AG 1A0617 000001

MADE IN BELGIUM

220-240V 50/60Hz

~

VHF+S+H+UHF

S

128W

BJ3.0E LA

E_06532_024.eps

130606

Figure 2-2 Serial number (example)

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

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

2.4.7 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.

EN 6 L04L AB3.

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

4. Mechanical Instructions

Mechanical Instructions

EN 7L04L AB 4.

Index of this chapter:

4.1 Set Disassembly

4.2 Service Position

4.3 Assy/Panel Removal

4.4 Exploded Views (New SL7 Styling)

4.5 Set Re-assembly

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

4.1 Set Disassembly

Warning: Be sure to disconnect the AC power from the set

before opening it.

4.1.1 Rear Cover

1. Remove all fixation screws of the rear cover (Note: Do not
forget the screws that hold the rear connection panel).

2. Pull the rear cover backwards to remove it.

4.2 Service Position

Before placing the Mono Carrier in its service position, remove
the Front Interface assy/panel (see paragraph “Front Interface
Assy/Panel”) and the Side AV assy/panel (see paragraph “Side
AV Assy/Panel”).

1. Disconnect the degaussing coil [1].

2. Release the two fixation clamps (at the mid left and mid
right side of the bracket), and remove the bracket from the
bottom tray, by pulling it backwards [2].

3. Turn the chassis tray 90 degrees counter clockwise.

4. Move the panel bracket somewhat to the left and flip it 90
degrees [3], with the components towards the CRT.

5. Turn the panel bracket with the rear I/O toward the CRT.

6. Place the hook of the tray in the fixation hole of the cabinet
bottom [4] and secure it.

4.3 Assy/Panel Removal

4.3.1 Front Interface Assy/Panel

1

2

3

1

3

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Figure 4-2 Front interface assy/panel removal

1. Remove the complete module from the bottom plate, by
pulling the two fixation clamps upward [1], while sliding the
module away from the CRT [2]. Note: these clamps are
difficult to access.

2. Release the two fixation clamps [3] at the side of the
bracket, and lift the panel out of the bracket (it hinges at
one side).

1

4.3.2 Side AV Assy/Panel

2

A

3

4

B

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Figure 4-1 Service position Mono Carrier

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Figure 4-3 Side AV assy/panel removal

1. Remove the two fixation screws, and remove the complete
Side AV assembly.

2. Release the two fixation clamps, and lift the panel out of the
bracket.

EN 8 L04L AB4.

4.3.3 LTI/CTI Interface Panel

Remove the LTI/CTI Interface panel from the Mono Carrier, by
disconnecting it from connector 1212.

4.3.4 Top Control Assy/Panel

1. Remove the two fixation screws.

2. Push the assy a little bit upwards, and then pull it
backwards to release it from the front hinge.

3. Lift the panel from its bracket, while releasing the two
fixation clamps. The panel hinges on the other side.

4.4 Exploded Views (New SL7 Styling)

Mechanical Instructions

Figure 4-4 SL7-RF styling

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Mechanical Instructions

EN 9L04L AB 4.

4.5 Set Re-assembly

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

Note: before you mount the rear cover, perform the following
checks:

• Check whether the AC power cord is mounted correctly in
its guiding brackets.

• Check whether all cables are replaced in their original
position

Figure 4-5 SL7-Slim styling

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EN 10 L04L AB5.

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Problems and Solving Tips Related to CSM

5.4 Service Tools

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 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. These test points are specifically
mentioned in the “Test Point Overview” as “half moons” with a
dot in the center.

Table 5-1 Test point overview

Test point Circuit Diagr.

F508, F535, F536, F537, F552, F561, F563, F573, F664,
I513, I518, I519, I524, I531, I533, I546

F401, F412, F413, F414, F418, F452, F453, F455, F456,
F458, F459, F460, F461, I408, I416, I417, I420, I462,
I468

F003, F004, I001, I002 Tuner IF A3

F201, F203, F205, F206 Hercules A4

F240, F241, F242 Features &

F952, F955, I951, I952 Audio Amplifier A7

F692 Front Control A9

F331, F332, F333, F338, F339, F341, F351, F353, F354 CRT Panel B1

F361, F362, F381, F382 ECO Scavem B2

Power supply A1

Line & Frame
Deflection

Connectivities

Perform measurements under the following conditions:

• Television set in Service Default Alignment Mode.

• Video input: Color 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 center 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 abilities 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").

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.

Specifications

• Tuning frequency: 61.25 MHz (channel 3).

• Color system: NTSC M.

• All picture settings at 50% (brightness, color 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-favorite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.

A2

– Auto Volume Leveling (AVL).

How to enter

To enter SDM, use one of the following methods:

• Press the following key sequence on the remote control

A5

transmitter: “062596” directly followed by the MENU button
(do not allow the display to time out between entries while
keying the sequence).

• Short jumper wires 9252 and 9275 on the family board (see
Fig. 8-1) and apply AC power. Then press the power button
(remove the short after start-up). Caution: Entering SDM
by shorting wires 9252 and 9275 will override the +8V­protection. 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.

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 Alignment Mode.

00028 L04L 0.12 SDM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000

Table 5-2 Software cluster overview

SW Cluster SW name UOC Type Features

L4LLS1 L4LLS1_x.y TDA12040H1/N1B501AO CC+BTSC

TDA12040H1/N1B511AP CC+BTSC+CMB+DW

L4= Chassis name, L= Large Screen, L= LATAM, S= Stereo dBx, 1= Language
Cluster, x.y= Software Version.

CC= Closed Caption, BTSC= Broadcast Television Systems Committee, CMB=
Comb Filter, DW = Double Window

Figure 5-1 SDM menu

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Service Modes, Error Codes, and Fault Finding

EN 11L04L AB 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 POWER button on
the remote control transmitter or the television set.
If you turn the television set off by removing the AC power (i.e.,
unplugging the television) without using the POWER button,
the television set will remain in SDM when AC power is re­applied, 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 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.

00028 L04L 0.12 SAM
ERR 0 0 0 0 0

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 (L4L= L04 Large Screen).
– 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. SAM. Indication of the Service Alignment Mode.

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

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

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

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

8. AKB. Used to disable (Off) or enable (On) the “black
current loop” (AKB= Auto Kine Bias).

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. Geometry. Used to align the geometry settings of the
television. See “Geometry” in the Alignments section for a
detailed description.

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

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

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.

OP 000 057 140 032 120 128 000

. Clear Clear ?
. Options
. AKB On
. Tuner
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on

Figure 5-2 SAM menu

E_14480_067.eps

240304

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.

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.

EN 12 L04L AB5.

4

Service Modes, Error Codes, and Fault Finding

How to exit

Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter or the television set.
If you turn the television set “off” by removing the AC power
(i.e., unplugging the television) without using the POWER
button, the television set will remain in SAM when AC power 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 center can
instruct the customer (by telephone) to enter CSM in order to
identify the status of the set. This helps the call center 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 00028 L04L 0.12 CSM
2 CODES 0 0 0 0 0

3 OP 000 057 140 032 120 128 000
4 nnXXnnnn/nnX
5 P3C-1
6 NOT TUNED
7 NTSC
8 STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50

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 have 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_14480_068.eps

24030

Figure 5-3 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 centers (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 Color 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.

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 13L04L AB 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.

5.4 Service Tools

5.4.1 ComPair

Introduction

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

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

2. ComPair allows very detailed diagnostics and is therefore
capable of accurately indicating problem areas. You do not
have to know anything about I2C or UART commands
yourself, because ComPair takes care of this.

3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the uP
is working) and all repair information is directly available.

4. ComPair features TV software upgrade possibilities.

Specifications

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

How to Connect

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

TO TV

OR

RS232 /UART

G_06532_036.eps

TO

UART SERVICE

CONNECTOR

260107

TO
I2C SERVICE
CONNECTOR

ComPair II

RC in

Optional

Switch

Power ModeLink/

Activity

HDMI

2

I

C only

RC out

Multi

function

2

C

I

PC

ComPair II Developed by Philips Brugge

Optional power

5V DC

Figure 5-4 ComPair II interface connection

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

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

How to Order

ComPair II order codes:

• ComPair II interface: 3122 785 91020.

• ComPair32 CD (update): 3122 785 60160.

• ComPair interface cable: 3122 785 90004.

• ComPair interface extension cable: 3139 131 03791.

• ComPair UART interface cable: 3122 785 90630.

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

EN 14 L04L AB5.

Service Modes, Error Codes, and Fault Finding

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.

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.

Note: If you exit SAM by disconnecting the AC power 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).

Table 5-3 Error code overview

Error Device Error description Check item

0 Not applicable No Error

1 Not applicable X-Ray/Over-voltage

2 Not applicable High beam (BCI) protection 3404, 7405 A2

3 Not applicable Vertical guard protection 3466, 7451, 7452,

4 Tuner I2C error while

5 Not applicable +5v protection 7604, 7605 A5

6 I2C bus General I2C error 7200, 3207, 3214 A4

7 Not applicable - - -

8 Not applicable - - -

9 24C16 I2C error while

protection (US only)

communicating with 2nd
tuner

communicating with the
EEPROM

2411, 2412, 2413,
6404, 6411, 6412

7453, 7454

1000, 5010, (PIP
Module)

7601, 3604, 3605 A5

Diagra
m

A2

A2

F2

Error Device Error description Check item

10 Tuner I2C error while

11 TDA6107/A Black current loop

12 SDA9488X I2C error while

13 Not applicable - - -

14 DVD Loader

(when
present)

15 TDA9178T/N1 I2C error while

16 TDA9887 I2C error while

17 Not applicable - - -

18 Not applicable - - -

19 TDA1200x I2C error while

20 TDA1200x I2C error while

communicating with the
PLL tuner

instability protection

communicating with the
PIP processor

I2C error while
communicating with the
DVD Interface module

communicating with LTI
module

communicating with
PIP_Demodulator

communicating with SSD
stereo sound decoder

communicating with video
cosmic in Hercules IC

1000, 5001 A3

7330, 3351, CRT B1

7242 (PIP
Module)

DVD Interface
module

7610 H

7201 F2

7200 A4

7200 A4

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:

• When all the error-codes are displayed, the sequence
finishes with a LED blink of 1.5 seconds,

• The sequence starts again.

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 at 12 short blinks.

5.7 Protections

If a fault situation is detected, an error code will be generated;
and, if necessary, the television set will go into protection
mode. Blinking of the red LED at a frequency of 3 Hz indicates
the protection mode. In some error cases, the microprocessor
does not put the set in protection mode. The error codes of the
error buffer and the blinking LED procedure can be read via the
Service Default Menu (SDM), or via ComPair.

To get a quick diagnosis the chassis has three service modes
implemented:

• The Customer Service Mode (CSM).

• The Service Default Mode (SDM).

• The Service Alignment Mode (SAM).

For a detailed mode description, see the relevant sections.

Diagra
m

F1

DVD
Loader

Service Modes, Error Codes, and Fault Finding

5.8 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.

5.8.1 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. In the next table, some default NVM values are given.

Table 5-4 NVM default values for LATAM-region

Item

Address (DEC)

29PT8457/77 (10.4)

EW (EW width) 1937373745453745

PW (EW parabola width) 2010101026261026

HS (Horizontal shift) 21 26 26 26 28 28 26 28

HP (Horizontal parallelogram) 2231313123233123

HB (Horizontal Bow) 23 31 31 31 28 28 31 28

UCP (EW upper corner parabola) 2430303034343034

LCP (EW lower corner parabola) 2540404032324032

TC (EW trapezium) 2626262626262626

VS (Vertical slope) 27 37 37 37 34 34 37 34

VA (Vertical amplitude) 28 30 30 30 29 29 30 29

SC (S-Correction) 29 35 35 35 35 35 35 35

VSH (Vertical Shift) 30 26 26 26 30 30 26 30

VX (Vertical Zoom) 3125252525252525

VSL (Vertical scroll) 32 32 32 32 32 32 32 32

VL (Vertical linearity) 3332323232323232

BLOR (Black level Offset ñ Red) 34 27 27 27 27 27 27 27

BLOG (Black level Offset ñ Green) 35 29 29 29 29 29 29 29

AGC (AGC Takeover) 3620202020202020

OIF (IF-PLL Offset) 3736363636363636

AGC10 (AGC 10) 38 1 1 1 1 1 1 1

H60 (60 Hz Horizontal Shift) 396666666

60 Hz Vertical amplitude 42 64 64 64 64 64 64 64

YD & CL 43 60 60 60 60 60 60 60

Vg 2 Brightness 44 255 255 255 255 255 255 255

NVM_TABLE_VERSION 60 57 57 57 57 57 57 57

OPTION_TABLE_VERSION 61 24 24 24 24 24 24 24

CVI_BLOR 62 6 6 21 21 21 21 21

CVI_BLOG 63 20 20 15 15 15 15 15

TXT Brightness 64 40 40 40 40 40 40 40

Radio AGC Takeover 65 255 255 255 255 255 255 255

V60 offset (60Hz Vertical Amplitude) 66 254 254 254 254 254 254 254

White-D Cool Red 294 253 253 253 253 253 253 253

White-D Cool Green 295 0 0 0 0 0 0 0

White-D Cool Blue 296 5 5 5 5 5 5 5

White-D Normal Red 297 38 38 38 38 38 38 38

White-D Normal Green 298 32 32 32 32 32 32 32

White-D Normal Blue 29940404040404040

White-D Warm Red 3002222222

White-D Warm Green 301 0 0 0 0 0 0 0

White-D Warm Blue 302 250 250 250 250 250 250 250

29PT8457/78 (10.4)

29PT6456/77 (AK)

29PT6456/78 (AK)

29PT6566/78 (AK)

29PT5645/77 (AK)

EN 15L04L AB 5.

29PT5645/78 (AK)

EN 16 L04L AB5.

Service Modes, Error Codes, and Fault Finding

5.8.2 Power Supply

Set Not Working

Check Power
Supply Mains

Switch

Bridge Rectifier

circuit 6500

Ok

Check DC
voltage at
2505/2507

Ok

Check
fusible

resistor 3532

Not Ok

Check

7512

Not Ok

Check fusible
resistor 3510 &
circuit before it

Check IC7511 &

IC7531

Ok

Set able to

start-up

Ye s

End

No

Check other

fusible resistor

and capacitor in

the circuit

E_14480_057.eps

190204

5.8.3 Deflection

One Thin Vertical Line

Quick check:

• Set in protection mode.

• LED blinking with error “3”.

One Thin Vertical Line

LED Blinking

Check all

connection and

peripheral at

Deflection Circuit in

place

Check

Line Transistor

7405

Is VBE between

200mV to 30mV & V

approximately 500mV

Yes

Check Horizontal

Deflection

Circuitry

CB

Figure 5-5 Fault finding tree “Set not working”

Set Does Not Start Up

Set Unable

to Start

Software

loaded?

Yes

Check

voltage

across 2552

No

Is Vbatt

approximately

140V

Yes

Check

voltage 2562

&2563

16V

Yes

Check 3V

across 2535

Yes

Check 6V

across 2535

Fuse Blown?

Load

Software

No

Yes

Check Power
Supply circuit

No

Change

Fuse

Replace transistor

E_14480_059.eps

170204

Figure 5-7 Fault finding tree “One thin vertical line”

One Thin Horizontal Line

Quick check:

• Set in protection mode.

• LED blinking with error “2”.

One Horizontal

Thin Line

LED Blinking

Check all connection

and peripheral at

Deflection Circuit

in place

Check transistor

(7451, 7523, 7543) at

Vertical Deflection Circuitry

Replace transistor

Yes

Set able to

Start

Yes

End

No

Check Line

Transistor 7405

E_14480_058.eps

Figure 5-6 Fault finding tree “Set does not start up”

170204

Check Vertical

Deflection Circuit

E_14480_060.eps

170204

Figure 5-8 Fault finding tree “One thin horizontal line”

Service Modes, Error Codes, and Fault Finding

EN 17L04L AB 5.

Blank Screen

Blank Screen

Check Vg2

(fine tune)

Not Ok

Check Beam Current Limit

(voltage is 1.8V-2V when

brightness and contrast is

set to the maximum

Ok

Check heater voltage

(measure pin 9&10
at the CRT socket)

Check video supply

(2457) is approximately

180V

Ok

Not Ok

Picture

appears?

Picture not appearing

Check deflection

circuit

Picture not appearing

Not Ok

5.8.5 Tuner and IF

No Picture

1. Check that the Option settings are correct.

2. If correct, check that supply voltages are there.

3. If supply voltages are present, check whether picture is
present in AV.

4. If picture is present in AV, check with the scope the Tuner
IF output signal by manual storage to a known channel.

5. If IF output is present, Tuner is working fine. If no IF output,
I2C data lines may be open, check continuity of I2C lines.
If I2C lines are ok, Tuner may be defect, replaced Tuner.

6. If Tuner IF is present and yet still no picture in RF mode, go
to Video Processing troubleshooting section.

No Picture, No Sound

Yes

Check tuning

supply voltage,

pin 9 of tuner

>30V & <35V

Check supply

voltage, pin 7 of

tuner

Check

Supply

V

No

T

Section

No Picture,
No Sound,

Raster Ok

Check AGC

Ok

Voltage, pin 1

of tuner

AGC voltage

changes with

different signal

strength

Ok

Picture

appears?

Ok

Figure 5-9 Fault finding tree “Blank screen”

5.8.4 Source Selection

Set is not able to go into AV or any missing AV is encountered

E.g. AV1 is available but not able to enter to AV1: Check if the
option setting is correct.

Set is able to go to AV, but no audio is heard.

1. Check that continuity of signal is there from the SCART/
Cinch input to the input of the Hercules.

2. If continuity is there and still no audio, check that option
settings are correct.

3. If logic setting is correct and still no audio, proceed to Audio
Decoder/Processor troubleshooting section.

Set is able to go into AV but no video is available:

1. Check continuity from AV input to HERCULES depending
on the input.

2. If continuity is available and yet no video, proceed to Video
Processor troubleshooting section.

End

E_14480_061.eps

170204

No

Check AGC

circuit section

5V

Yes

Check Tuner

pin 4 & 5

I2C Bus

Ok

Yes

Replace Tuner

Check Power

No

No

Supply

Check other

functional area

E_14480_062.eps

Figure 5-10 Fault finding tree “No picture, no sound”

170204

EN 18 L04L AB5.

Service Modes, Error Codes, and Fault Finding

Picture Ok, No Sound

Picture Ok,

No Sound

Check IF output of

tuner, pin 11

CVBS

present?

Ye s

Check SAW filter output

(pin 4&5)

EU/AP/CH (QSS)- 1001

NA/LA/AP INT - 1002

Output Ok?

Ye s

Check other

functional area

No

No

Refer to fig.

"Power Supply:

Set not working"

Replace SAW

filter

E_14480_063.eps

170204

Figure 5-11 Fault finding tree “Picture ok, no sound”

Unable To Perform Tuning

Unable to

perform tuning

Enter SDM

check optionbyte 1

Correct

Check if tuner

Supply Voltage

pin 7

Incorrect

5V

Yes

Check Tuner

Supply Voltage

Check I2C at pin

4 & 5 and tuner

Ok

Check other

functional area

Enter SDM and change

to the appropriate byte

Check Power

No

Supply

No

33V

Yes

Not Ok

Check I2C

circuit

Not Ok

I2C

Not Ok

Replace

Not Ok

Tuner

E_14480_064.eps

Figure 5-12 Fault finding tree “Unable to perform tuning”

Tuner

5.8.6 Controller

Below are some guidelines for troubleshooting of the Micro
Controller function. Normally Micro Controller should be
checked when there is a problem of startup.

1. Check that both +3.3 V_dc and +1.8 V_dc are present.

2. Check that crystal oscillator is working.

3. Check that Power Good signal is at “high” logic, normal
operation.

4. Check that HERCULES is not in standby mode. Pin 15 of
HERCULES should be 0 V_dc.

5. Make sure H-drive pulse is there. This can be checked at
resistor R3239. If H-drive does not exist, remove resistor
R3239 to check if there is loading.

Note: When the set shuts down after a few second after power
“on”, the main cause is that Vg2 not aligned properly, try
adjusting Vg2 during the few seconds of power “on”.

5.8.7 Video Processing

No Picture

When “no picture in RF”, first check if the microprocessor is
functioning ok in section “Controller”. If that is ok, follow the
next steps.
When “no picture in AV”, first check if the video source
selection is functioning ok in section “Source Selection”. If that
is ok, follow the next steps.

1. Check that normal operating conditions are met.

2. Check that there is video signal at pin 81. If no video,
demodulator part of the HERCULES is faulty, replace with
new HERCULES.

3. If video signal is available at pin 81, check pin 56, 57, and
58 for the RGB signal.

4. If signal is not available, try checking the BRIGHTNESS
and/or CONTRAST control, and make sure it is not at zero.

5. If still with the correct settings and no video is available,
proceed to the CRT/RGB amplifier diagram.

For sets with TDA9178, follow steps below:

1. Put Option Byte 2 bit 4 to “0”; if video signal is not available,
then check fault finding section “Controller”, Section
“Source Selection”, and steps above.

2. If video is available but not correct, put Option Byte 2 bit 4
to “1”, then check if LTI panel is present. If not, put LTI
panel in the main chassis (connector 1221).

3. If LTI panel is in main chassis, check cable between LTI
panel and main chassis (position is 1206). If it is
connected, then the LTI panel is faulty, replace it.

For sets with Scavem, and Scavem does not work, follow steps
below:

1. Check Scavem coil connector (position is 1361) if
connected; if not, connect it.

2. If connected, check NVM “bit storage” byte 1 bit 7; if it is not
“1”, set it to “1”.

3. If it is “1”, then check the data of the NVM addresses as in
the next table. If the data is not correct, then set these
addresses to diagram values.

4. If it still not works, track Scavem output from pin64 of
HERCULES to CRT panel.

170204

Table 5-5 NVM default values for Scavem

Description Address (dec) Value (dec)

SPR, WS 140 00

VMA, SVM 141 50

NVM_SOC_SMD 142 03 (“02” for 29PT8457/77 and 29PT8457/78)

5.8.8 Audio Processing

No Sound

Picture Ok,

No Sound

Tuner IF Ok Check Tuner/IFNot Ok

Ok

Service Modes, Error Codes, and Fault Finding

EN 19L04L AB 5.

Check AUDOUTLSL &

AUDOUTLSR pin at

UOCIII

Ok

Check Audio

Amplifier

Not Ok

Not Ok

Check UOCIII IC

Check Audio

Power Supply

Ok

Check Audio

Amplifier Circuit

and loud speaker

Ok

Check NVM

Not Ok

Check Power

Supply

Replace Audio

Amplifier

E_14480_065.eps

201005

Figure 5-13 Fault finding tree “No sound”

No RF audio for QSS/Inter-Carrier stereo sets.

1. Check pin 99 and 100 for SIF signal (for QSS) or pin 104
and 105 for video with SIF (for Inter-Carrier)

2. If signal is not present, check for the QSS/FMI bit settings.
Check also the NVM data.

3. If signals are present and still no audio, check the audio
supply voltage +8V are present.

4. If still no audio signal at Hercules output, Hercules is faulty.

No AV audio.

1. Check troubleshooting methods in section “Source
Selection”.

2. Check the output of the Hercules to see if there is signal
available. If no, check the normal operating condition and
also the NVM data.

3. If still no audio signal at Hercules output, Hercules is faulty.

Note: If there is audio signal at Hercules output and no audio
at loudspeaker, proceed to Audio Amplifier troubleshooting
methods.

5.8.9 Audio Amplifier

No RF as well as AV audio at the loudspeaker:

1. Check that the normal operation condition of the amplifier
is met.

2. If normal operation conditions are met, check the continuity
from Hercules output to input of the amplifier.

3. If continuity is there and still no audio, check speaker wire
connections. If still no audio, amplifier IC might be faulty

EN 20 L04L AB5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

E_06532_012.eps

131004

Block Diagrams, Testpoint Overviews, and Waveforms

6. Block Diagrams, Testpoint Overviews, and Waveforms

Wiring Diagram

(component view)

CRT PANEL

B

RIGHT

SPEAKER

1331

7P

5P

1351

1352

1332

CRT

SOCKET

21L04L AB 6.

DEGAUSSING COIL

CRT

1361

3P

AQUADAG

4:3

FRAME

RO TAT IO N

COIL

SCAVEM

COIL

EHT
CRT

LEFT

SPEAKER

B

CRT PANEL

1381

3P

CVBS (YELLOW)

LEFT (WHITE)

RIGHT (RED)

HEADPHONE

SIDE A/V PANEL

D

+ HP PANEL
+ *TOP CONTROL

1252

7P

1010*

3P

1254

5P

1278

4P

*(TOP CONTROL ONLY FOR SL6 MODELS)

(track view)

LTI/CTI

H

INTERFACE

1215

1206

(ONLY FOR SL6 MODELS)

1214

7P

12P

5P

1280

1207

MAINS SWITCH PANEL (SL5)*

M

FRONT (& TOP) INTERFACE

1693

6P

1504

2P

MONO

A

CARRIER

1682

3P

1206

7P

7P

1204

1221

12121212

3P

7P

12P

H

1401

1451

2P

LT I/
CTI

5P

LOT

1505

2P

1404

2P

J

(SL6 & SL7)

1693

6P

0202*

1505

2P

*(ONLY FOR SL5 MODEL)

LINEARITY&

G

PA NORAMA

1462

3P

1464

2P

1461

2P

(OPTIONAL)

OR

MAINS

SWITCH

0201*

1211

MAINS

CORD

2P

1005

3P

COMPAIR

CONNECTOR

TUNER

H_16820_024.eps

220507

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Supply and Deflection

SUPPLY

MAINS SWITCH PANEL (SL5)*

M

FRONT (& TOP) INTERFACE

J

(SL6 & SL7)

0201*
1211

1

2

*(ONLY FOR SL5 MODELS)

POWER SUPPLY

A1

1505

6538

7532

1506

9507

9508

6512

3519

1031
1231*

Degaussing

RES

OR

0202*
1505

1

2

1504

2

Coil

2511

6533

3530

I531

1500

T4E

11

7511
TEA1506T

2

6

7531
TEA1620

3

6

1

5500
5501

DRAIN

DRIVER

SENSE

Vcc

CONTROL

IC

CTRL

DEMAG

STANDBY

SUPPLY

Vcc

DRAIN

CONTROL

IC

REG

SOURCE

AUX

3507

t

6500

AC

2505

DC

MAIN

SUPPLY

3513

14

3514

11

9

7

3518

14

12

6532

3522

3517

3534

3531

2534

3538

6511

7512

D

G

S

7514

3516

22L04L AB 6.

DEFLECTION

HERCULES

Vbatt
140V

-Vaudio

-16V

+Vaudio
+16V

+6VA

A4

2x

A4

+3V
+6VA
+6VA

+6V

Vaux

A4

INTF_Y GREEN_IN

A5

EHTinfo

A2

56

97

7200-H
(SYNC)

VIDEO

IDENT

MAIN

SYNC

SEPARATOR

EHTo

PHI 1

DETECTOR

VERTICAL

SYNC

SEPARATOR

3232

2240

HORIZONTAL

OSC.

SAND-

CASTLE

GENERATOR

X-RAY

PROTECTION

VERTICAL

DIVIDER

112

A2 A2

Vguard

EHTinfo

113 116

VERTICAL

GUARD

DETECTOR

PHI 2

DETECTOR

VERTICAL

SAW-

THOOTH

HORIZONTAL

OUTPUT

E/W

+

GEOMETRY

VERTICAL

OUTPUT

+

GEOMETRY

R.G.B.

BLANKING

62

63

SEE BLOCK DIAGRAM VIDEO

108

106

107

7207

TO RGB
PROC.

3291

HDRIVE

HD

SANDCASTLE

A5

HD_PIP

A5

EW_DRIVE

VDRA

VDRB

7541

1503

42

ENERGIZING

3

5512

9

8

4

5

3

2

4

3

3532 1532

1A

5531

4

5

1

2

CIRCUIT

1

(optional)

5551 5552

17

18

5562

13

14

5561

10

11

1

7515
TCET1103

2

6564

6535

10

9

6536

8

6

6551

6563

6562

3571

6573

1543

6571

7571

REFERENCE

CIRCUIT

7573

STANDBY

CIRCUIT

6565 6566

2564

2535

2536

6537

V_DG

3565

+3V3

G

7536

7561

D S

Stdby_Con

6576

5537

7535

3575

3576

POWER-DOWN

LINE + FRAME DEFLECTION

A2

+6VA

LINE

HD

6486

-9V

5402

7404

BU4508DX

E/W

+9V

+9V

3420 3440

7410

3498

7406

7484

FRAME

+9V

3462

7455 7456

3463

7408

7405

3497

LINE
OUTPUT
CIRCUIT

+

E/W

CORR.

7411

6458

7452

-12V

7454

Vbatt

1404
1

2

3

1

7451

7453

HOR.
DEFL.
COIL

3461

3466

5445

3474

3471

1451
1

2

10

6

5

7

8

9

-12V

FOCUS

VER.
DEFL.
COIL

EHT

VG2

1454

3457

Vguard

FRAME_FB

3442

6481

Vbatt

A4

TO

CRT

B1

3481

3410

6401

7401 : 7403
7480 : 7483

3411

+Vbatt

6483 6484

6453

6456

3457

3455

3451

2403

6452

3458

3484

3485

1452

2456

6459

Vbatt

EHTb

EHTinfo

BCL

PROC.

+

+

EHTinfo

VIDEO/SUPPLY

6454

6455

Filament

VideoSupply

3401

POWER-DOWN

A1

FRAME_FB

EHTb

A4

BCL

A4

-12V

+9V

EHTb

200V

VT_SUPPLY

A4

1401

5

4

3

2

1

TO 1351

B1

CRT

HOT GROUND COLD GROUND

H_16820_025.eps

220507

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview Mono Carrier

F001 A8
F002 A7
F003 A7
F004 A7
F005 A8
F006 A6
F007 A8
F008 A8
F009 B4
F010 A7
F011 A8

3139 123 5673.1

F101 B8
F102 B8
F103 B8
F104 B8
F105 B8
F106 B8
F107 B8
F108 B8
F109 B8
F110 C8
F111 B8

F112 C8
F113 C8
F115 C7
F116 C7
F117 C7
F119 A8
F120 A8
F121 A8
F122 B8
F123 B8
F138 B7

F200 B4
F201 C5
F202 B5
F203 B5
F204 C5
F205 C5
F206 C6
F207 B5
F208 B6
F209 A5
F210 A4

F211 A4
F212 A5
F213 A5
F214 B5
F215 B6
F216 C6
F217 C6
F218 C6
F219 B7
F220 B7
F221 B7

SERVICE TEST POINT

F222 C7
F223 B7
F224 C6
F225 C6
F226 B6
F227 A4
F228 C5
F229 C5
F230 B5
F232 B5
F233 B5

F237 B5
F238 B4
F239 B5
F240 C5
F241 C6
F242 C6
F243 C6
F244 B5
F245 C6
F247 A6
F248 A6

F249 A7
F250 C6
F251 B5
F270 B5
F401 C4
F402 D6
F404 D6
F407 D6
F412 C6
F414 E7
F415 E6

F416 E6
F417 E5
F418 D6
F419 D6
F420 D7
F451 C8
F452 C7
F453 D7
F454 C7
F455 D7
F456 E7

F457 E7
F458 C7
F459 C7
F460 C7
F461 C7
F462 E7
F463 D8
F464 E5
F465 E5
F466 E8
F500 C2

F501 D2
F502 D2
F503 E2
F504 E2
F505 E2
F506 E2
F507 E2
F508 E3
F509 E4
F510 D5
F535 C4

F536 C5
F537 C3
F541 C3
F542 C3
F551 C5
F552 D5
F561 C4
F562 D4
F563 C4
F564 C5
F573 C5

F581B3
F582B4
F583C4
F682B1
F683B1
F685B1
F691 C1
F692 D1
F693 E1
F694 C1
F695 C1

23L04L AB 6.

F696 D1
F697 E1
F698 C1
F699 D1
F901 B3
F903 B2
F904 B1
F905 B2
F910 B3
F911 B3
F950 B3

F951 B3
F952 A3
F953 A3
F955 A3
I001 A8
I002 A8
I003 A7
I004 A7
I005 A5
I006 A5
I007 A7

I008 A5
I009 A5
I010 A5
I011 A7
I012 A7
I013 A6
I014 A8
I015 A8
I016 A7
I017 B5
I104 B8

I105 B7
I106 B7
I107 B8
I108 B7
I109 B7
I110 B7
I111 B8
I112 B7
I113 C8
I114 B8
I115 C8

I116 B7
I117 B8
I118 A7
I119 A7
I120 B7
I201 A5
I203 A5
I204 A5
I205 A5
I206 A5
I207 B6

I208 C5
I209 B6
I210 B6
I211 C6
I212 B6
I213 A5
I214 A5
I215 A6
I216 B6
I217 B7
I218 B6

I219 B6
I222 B5
I223 B5
I224 B4
I225 B5
I226 C6
I227 A5
I228 B5
I229 C5
I230 B5
I231 B5

I232 A7
I233 B7
I234 A4
I235 B5
I236 B5
I240 A4
I241 A4
I401 E7
I402 E6
I403 E7
I404 E7

I405 E7
I406 E7
I407 E7
I409 E8
I410 E6
I412 E6
I413 C6
I414 D6
I415 C6
I416 C5
I417 D5

I418 D6
I419 C6
I421 D7
I422 D7
I423 D5
I424 E8
I425 C6
I426 D7
I427 D5
I428 D6
I429 E8

I430 E6
I431 C7
I432 D6
I433 E6
I434 C5
I443 E7
I444 E7
I445 E7
I446 C5
I448 E7
I449 D8

I451 D7
I452 E8
I453 D7
I455 D7
I456 D8
I457 D7
I458 D7
I459 D7
I460 C8
I461 C8
I462 C8

E_14480_029.eps

200204

I463 D8
I464 C8
I465 E7
I466 D7
I467 E8
I468 D7
I469 E8
I470 D8
I471 C8
I472 C7
I473 E5

I474 E6
I475 D8
I501 E3
I502 E3
I503 E2
I504 E2
I505 D1
I506 E3
I507 D3
I511 E5
I513 E5
I514 D4
I515 E4
I516 E4
I517 E4
I518 E5
I519 E5
I520 E5
I521 E4
I523 E5
I524 E5
I527 E5
I529 D3
I531 D3
I532 D3
I533 D3
I535 D3
I536 D3
I537 C4
I538 C3
I539 D3
I540 D4
I541 D4
I542 C3
I543 C2
I544 D3
I545 C3
I546 C3
I547 C3
I548 C3
I551 D5
I552 D5
I553 D3
I554 D4
I555 D4
I556 D4
I557 D3
I561 D4
I562 D4
I565 C4
I571 D5
I572 C5
I573 D5
I574 D5
I575 D5
I576 D5
I577 D5
I578 D5
I579 D4
I582B4
I583B4
I584B4
I585B4
I586B4
I587C4
I588 B4
I681E1
I682B1
I683B1
I686C1
I687D1
I688 C1
I689D1
I691 E1
I693 D1
I909 B3
I910 C3
I911 C3
I913 C3
I914 C2
I915 C3
I916 C2
I918 C3
I919 C2
I920 B3
I921 C2
I922 C2
I924 B3
I925 B3
I926 B2
I927 C2
I928 B1
I930 B2
I934 B2
I935 B1
I936 B2
I937 C2
I938 B2
I939 B2
I940 B2

I941 B2
I942 C3
I943 B2
I944 C3
I945 C2
I946 B3
I948 B3
I951 B3
I952 A3
I953 A3
I954 A3
I955 B3
I956 A3
I957 A3
I958 B4

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Video

VIDEO

TUNER IF

A3

+5VS

+5V

A4

A4

A4

9002

SDA

SCL

SEL_LLP|M

A2

TV

3001

3000

VT_Supply

5001

1000 6, 7 9

MAIN

TUNER

5

I002

I001

7001

FILTER

SELECTION

6001
BZX79-C33

VT

FM

IF

AGC

4

1

10

11

RF_AGC

24L04L AB 6.

ADC

A5

1212

1206

4

6

8

9

10

1

3

6

CONN.

INTF_Y/GREEN_IN

INTF_Pb/BLUE_IN

INTF_Pr/RED_IN

SANDCASTLE

DAC

INTF_FBL

INTF_BBL

DINT

SDA

SCL

Y

Pr

Pb

LTI/CTI INTERFACE

H

1214

1

3

N.C.

5

1216

1

N.C.

INTF_Y_OUT

INTF_Y

INTF_U_OUT
INTF_Pb

INTF_V_OUT
INTF_Pr

INTF_FBL

2

6

3

7

4

8

15

14

7611
TDA8601T

CLAMP
CLAMP

CLAMP
CLAMP

CLAMP
CLAMP

3-STATE

3-STATE

3-STATE

3-STATE

165

A5

1212

YUV
RGB
DVD

1212

1

2

3

SC1_RED_IN50SC1_GREEN_IN51SC1_BLUE_IN

49

YPrPb2/
YPrPb3

SELECTION

DVD

TO

DVD

1

2

3

SELECTION

DVD

INTF_Y_OUT

INTF_U_OUT

INTF_V_OUT

(LTI/CTI INTERFACE ONLY I N SL6 MODEL)

TO

HERCULES

7200-A (IF)

PHASE

VIDEO

TUNER IF

AUDIO IF

QSS/AM

AUDIO
PAR T

DISC

IF

AGC

See block
diagram
AUDIO

VCO

VIDEO

DEMOD

(RGB/YPrPb/YUV
INPUT SWITCHING)

7200-C

7200-B (CVBS I/O + FILTERS + COLOUR DECODING)

86

SWITCH

PLL

SOUND

TRAP

PLL

FM/QSS

SOUND

MIXER

AM

SOUND

DET.

TO
AUDIO
PAR T

AM

See block
diagram
AUDIO

N.C.

SW_SC2_CVBS

SC1_CVBS_IN

SC2_Y/CVBS_IN

SIDE_Y/CVBS_IN

CVBS1

SC2_CHROMA_IN

SIDE_CHROMA_IN

81

74

71

78

70

77

INPUT

SWITCH

VIDEO
IDENT

CVBS/Y

C

COMB
FILTER
&TRAP

SWITCH

CHROMA/CVBS

OUTPUT
SWITCH

PAL , NTSC

SECAM

DECODER

INTF_CVBS_OUT65

N.C.

YintYint

Yint

Uint

Vint

SC1_FBL
N.C.

INSSW352

Uint

Vint

SELECTION

LOGIC

SSIF

A4

7003

SSIF

F002

1002
1003

VIF1

VIF2

SIF1

SIF2

105

104

08

100

99

F004

1001

12

11

10

13

RGB2/
RGB3

RGB

DVD

7610
TDA9178T

7630
7635

6

YIN

LTI/CTI

8

UIN

PROC.

9

VIN

PULSE FORMER

N.C.

INTF_V-OUT

53

TO

RGB

YOUT

UOUT

VOUT

SC

1

1

SDA

SCL

3

INTF_Y_OUT

INTF_U-OUT58INTF_Pb|BLUE_IN57INTF_Y|GREEN_IN

55

54

DVD

TO

YUV

19

17

16

YUV

TO

DVD

Pb_2

INTF_FBL

SANDCASTLE

INTF_BBL

INTF_Pr|RED_IN

59

YUV

1212

Y_2

4

6

Pr_2

8

9

10

12061215

1

SDA

SCL

3

6

DIGITAL SIGNAL PROC.

- 4:3 LINEAR/NON-LINEAR SCALING

- DOUBLE WINDOW PROC.

REAR I/O CINCH

A8

SVHS

154

AV2

V

AV1

V

YUV INPUT

Y

U

V

MONITOR

OUTPUT

V

SIDE AV

D

SVHS

154

VIDEO

IN

CRT

SC2_Y/CVBS_IN

32

32

SC1_GREEN_IN

SC1_BLUE_IN

SC1_RED_IN

Y

C

SC2_CHROMA_IN

SC1_CVBS_IN

SC2_CVBS_OUT

A5

1207

1252

7

6

5

CONNECTION

7

6

5

A5

7606
7607

SW_SC2_CVBS

SIDE_CHROMA_IN

SIDE_Y|CVBS_IN

A4

HERCULES

Y

Pr

Pb

7200-D (YUV PROCESSING)

PEAKING

SCAVEM

PROC.

WHITE/BLACK

STRETCH

GAMMA COR.

TINT CONTROL

SKINTONE

A5

7200-E (RGB PROCESSING + CATHODE CALIBRATION)

FROM µP PART

R_OSD

G_OSD

B_OSD

OSD

INSERTION

FBL

BRIGHTNESS

+

PEAK WHITE

LIM.

BEAM

CURRENT

LIM.

CATHODE

CALIBRATION

46

42

OUTPUT

43

STAGE

44

45

BCL

RES

A2 A4

R

RGB

ADDER

R_Y

G_Y

MATRIXSATURATION

B_Y

G

B

64

CLAMP

MUTE

BLUE

STRETCH

+

&

CONTRAST

3226

3227

3228

7208

Bout

Gout

Rout

Iblack

SVM

F240

F241

B1

F242

13311204

B

1

1

2

3

4

5

6

7

ROT

G

2

R

3

4

5

6

7

+200V

+200VA

BC_INFO

SVM

ROT

V14

2351

3351

!

1351

SCAVEM

B2

ROT

SVM

(OPTIONAL)

V13

7330

3

V11

1

2

V12

VSVM

FILAMENT

1351

123 45

to 1401

A2

DEFLECTION

FILAMENT

1381
1

RO TATI O N

OUTPUT

FILAMENT

VSVM

SCAVEM
OUTPUT

+200VA

V16

V15

V14

1332

11

B

6

G

8

R

10 9 5 7 1

3332

7

B

3334

9

G

3336

8

R

5

5352

EHT-b

ROTATION
COIL

2

(OPTIONAL)

1361
1

SCAVEM
COIL

2

(OPTIONAL)

AQUADAG

DEFLECTION

FOCUS

VG2

A2

FROM DEFLECTION

H_16820_026.eps

CRT

25kV

EHT

220507

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview CRT & LTI Panel

CRT

3139 123 5674.1

25L04L AB 6.

F331 A2
F332 A2
F333 A2
F334 A2
F335 A2
F336 A2
F338 A2
F339 A1
F340 A1
F341 A1
F351 A2
F352 A2
F353 A2
F354 A2
F356 A1
F360 A2
F361 A1
F362 A1
F381A1
F382A1
I330 A2
I331 A2
I332 A2
I333 A2
I334 A2
I335 A2
I336 A1
I337 A2
I351 A2
I353 A1
I355 A1
I357 A2
I360 A1
I361 A1
I362 A1
I363 A1
I364 A1
I365 A1
I366 A1
I367 A1
I368 A1
I369 A1
I370 A1
I371 A1
I372 A1
I373 A1
I374 A1
I375 A1
I381A1
I383A1
I384A1
I385A1
I386 A1
I387A1

LTI/CTI INTERFACE

3139 123 5740.1

1610 A2
1611 A2
1612 A1
1613 A2
1614 A1
1616 A1
1617 A2
1618 A1
1619 A2
1620 A1
1621 A2
1622 A1
1623 A1
1624 A2
1626 A2
1627 A1
1628 A1
1633 A2

E_14480_069.eps

270204

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Audio/Control

AUDIO

TUNER IF

A3

A4

HERCULES

26L04L AB 6.

REAR I/O CINCH

A8

+5V

+5VS

SDA

A4

SCL

A4

SEL-LLPIM

A4

REAR I/O CINCH

A8

AV1

L

R

AV2

L

R

SIDE AV

D

L

R

9002

A2

5001

1000 6, 7 9

TV

3001

3000

VT_Supply

TUNER

5

I002

I001

7001

SELECTION

1252

3

1

MAIN

4

FILTER

A5

1207

3

1

6001
BZX79-C33

VT

F002

10

FM

F004

11

IF

AGC

1

SC1_L_IN

SC1_R_IN

SC2_L_IN

SC2_R_IN

CONNECTIVITIES

SIDE_L_IN

SIDE_R_IN

7003

1002
1003

1001

SSIF

VIF1

VIF2

RF

SIF1

SIF2

105

104

08

100

99

7200-A (IF)

PHASE

DISC

VIDEO

IF

TUNER IF

AGC

AUDIO IF

QSS/AM

VCO

VIDEO

DEMOD

PLL

To VIDEO PART
see block diagram
VIDEO

PLL

SOUND

MIXER

AM

SOUND

DET.

FM/QSS

7200-F (AUDIO)

DIGITAL PART

SC1_R_OUT

FM/QSS

SSIF

96 93

AM

INTF_R_IN 75

N.C.

INTF_L_IN 76

SC2_R_IN 72

SC2_L_IN 73

SIDE_R_IN 79

SIDE_L_IN 80

AM

SC1_R_IN 94

SC1_L_IN 95

FM

DEM.

AMPLI

+

MUTE

MAIN_OUTL

MAIN_OUTR

AUDI O

SOURCE

SELECTION

AUDIO AMPLIFIER

A7

A4

VOL_MUTE

PROCESSING

STEREO

DECODER

7991
7992

VOLUME

+

MUTE

DIGITAL
SOUND

DIGITAL

SOUND

ERR

19

I951

I952

7990
TDA2616Q

1

9

2

ADC DAC

7991

AUDI O

SELECT

AUDI O

SELECT

V AUDIO+1

7

5

-V AUDIO

SCART
CINCH

OUTPUT

OUTPUT

OUTPUT

F952

4

F955

6

92

SC1_L_OUT

N.C.

SC2_R_OUT

66

HP

LS

67

68

69

SC2_L_OUT

MAIN_OUTR

MAIN_OUTL

A4

A4

1281

5

2

RES

1280

1

2

MUTING

Stby_Con

POWER_DOWN

D

5

2

SIDE AV

7104

7993, 7994

MUTE

MUTING

MONITOR

OUT

L

R

A5

12781254

1

2

L 16 Ohm/10W

R 16 Ohm/10W

CONTROL

FRONT (& TOP) INTERFACE

J

(SL6 & SL7)

6692
TSOP1836

6691

+6V

KEYBOARD

(NOT FOR SL6)

6693

MAINS SWITCH PANEL (SL5)

M

6004
TSOP1836

KEYBOARD

6006

LED

KEY_PROTN

LIGHT_SENSOR

OR

ON_OFF_LED

KEYBOARD

LIGHT_SENSOR

SIDE AV PANEL + HP PANEL + TOP CONTROL

D

(SL6)

1693

3

IR

4

5

6

1693

3

IR

4

5

6

KEYBOARD

FRONT CONTROL

A9

1693

3

4

5

6

6693

6692
TSOP1836

+3.3V

LOCAL

KEYBOARD

F692

6691

KEY_PROTN

(ONLY FOR SL6)

LED

KEYBOARD

LIGHT_SENSOR

LIGHT_SENSOR

LED

KEYBOARD

1010

2

IR

OR

IR1

OR

HERCULES (CONTROL)

A4

1682

2

KEY_protn 9

IR 32

LED

LIGHT-SENSOR 14

POWER_DOWN 31

A1

1205

24MHz

7200-G (Control)
TDA12001H1

I/O PORTS

IIC BUS

30

TRANSCEIVER

OUTPUTS

TELETEXT

(close caption)

119

118

+

+

PWM

+

CPU

+

+

ROM

RAM

22

3207

20

3214

21

2

1

18

15

17

16

23

24

25

WRITE_PROTECT

+3.3V

32803279

VOL_MUTE

Stdby_Con

7205

ROT

SEL_LLPIM

I2SD/1

Reset__5V

SEL_SC2_INTF

+3.3V

3266

3265

FEATURES

A5

EEPROM

(NVM)

7

32043202

SDA

SCL

see

E

IIC

DIAGRAM

D

(FOR LTI
AND PIP)

+3.3V

8
6
5

36043605

see

IIC

DIAGRAM

A7

A1
A7

B2

A3

A5

G

A5

A5

SERVICE JUMPER

9275

SDM

9252

H_16820_027.eps

220507