Philips l04a aa Service Manual
Colour Television Chassis
L04A
AA
E_14480_112.eps
060504
Contents Page Contents Page
1. Technical Specifications, Connections,
and Chassis Overview 2
2. Safety and Maintenance Instructions,
Warnings, and Notes 4
3. Directions for Use 6
4. Mechanical Instructions 7
5. Service Modes, Error Codes, and Faultfinding 9
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 & PIP Panel 25
Block Diagram Audio/Control 26
I2C and Supply Voltage Overview 27
7. Circuit Diagrams and PWB Layouts Diagram PWB
Power Supply (Diagram A1) 28 40-45
Diversity Table for A1 (Power Supply) 29 40-45
Deflection (Diagram A2) 30 40-45
Diversity Table for A2 (Deflection) 31 40-45
Tuner IF (Diagram A3) 32 40-45
Hercules (Diagram A4) 33 40-45
Features & Connectivities (Diagram A5) 34 40-45
Class D - Audio Amplifier (Diagram A6) 35 40-45
Audio Amplifier (Diagram A7) 36 40-45
Rear I/O Cinch (Diagram A8) 37 40-45
Front Control (Diagram A9) 38 40-45
DVD Power Supply (Reserved) (Diagram A10)39 40-45
CRT Panel (Diagram B1) 46 48-49
ECO Scavem Panel (Diagram B2) 47 48-49
Side AV + HP Panel (PV2) (Diagram D) 50 51
Side AV + HP Panel (FL-9) (Diagram D) 52 53
Top Control Panel (PV2) (Diagram E) 54 54
©
Copyright 2004 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.
Top Control Panel (FL9) (Diagram E) 55 55
Power Supply PIP Panel (Diagram F1) 56 58-59
Tuner IF and Demodulator PIP (Diagram F2) 57 58-59
Linearity & Panorama Panel (Diagram G) 60 60
LTI/CTI Interface Panel (Diagram H) 61 62
Front Interface Panel (PV2) (Diagram J) 63 63
Front Interface Panel (FL-9) (Diagram J) 64 64
8. Alignments 65
9. Circuit Descriptions 73
Abbreviation List 82
IC Data Sheets 84
10 Spare Parts List 86
11 Revision List 90
Published by BB 0465 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 14470
EN 2 L04A AA1.
Technical Specifications, Connections, and Chassis Overview
1. Technical Specifications, Connections, and Chassis Overview
Notes:
• Described specifications are valid for the whole product
range.
• Figures below can deviate slightly from the actual situation,
due to different set executions.
1.1 Technical Specifications
1.1.1 Vision
Display type : DV-CRT- RF
Screen size : 21” (55 cm), 4:3
: 25” (63 cm), 4:3
: 29” (72 cm), 4:3
: 32” (82 cm), 16:9
: 34” (85 cm), 4:3
Tuning system : PLL
TV Colour systems : NTSC M (3.58-4.5)
: PAL B/G, B/H, D/K, I
Video playback : NTSC 3.58, 4.43
: PAL 4.43
Channel selections : 100 presets
: UVSH
Aerial input : 75 ohm, Coax
: IEC-type
1.1.2 Sound
1.2.1 Side Connections
SIDE I/O
S-Video (optional)
Video
L
Audio
R
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Figure 1-1 Side I/O connections
SVHS: Y/C - In (Hosiden) (optional)
1-Ground Gnd H
2- Ground Gnd H
3-Y 1 V_pp / 75 ohm j
4-C 0.3 V_pp / 75 ohm j
Audio / Video 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
Bk - Headphone 8 - 600 Ohm / 4 mW ot
Sound systems : 2CS BG, D/K,
: FM/FM (5.5-5.74)
(B/G),
: FM/FM (6.5-6.74)
(China),
: NICAM B/G
(5.5-5.85),
: NICAM D/K (6.5-5.85)
Hung,
: NICAM I (6.0-6.52)
: AV stereo
Maximum power : 2x10/ 2x5 W_rms
(int.)
1.1.3 Miscellaneous
Power supply:
- Mains voltage : 90 - 276 V_ac
: 150-276 V_ac
- Mains frequency : 50 / 60 Hz
Ambient conditions:
- Temperature range : +5 to +40 deg. C
- Maximum humidity : 90 % R.H.
Power consumption
- Normal operation : from 65 W (21”)
: to 91 W (32”)
- Standby : < 1 W
1.2 Connections
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, Ye= Yellow.
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
S-VIDEO
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Figure 1-2 Rear connections
Aerial In
- F-type Coax, 75 ohm D
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
Cinch: In
Ge - Y 0.7 V_pp / 75 ohm jq
Bu -Pb 0.7 V_pp / 75 ohm jq
Rd - Pr 0.7 V_pp / 75 ohm jq
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
Technical Specifications, Connections, and Chassis Overview
1.3 Chassis Overview
B1
B2
CRT
ECO
SCAVEM
CRT PANEL
EN 3L04A AA 1.
SIDE AV PANEL +
D
HEADPHONE
LTI/CTI INTERFACE
H
PANEL
F1
POWER SUPPLY
TUNER IF &
F2
DEMODULATION
LINEARITY &
G
PANORAMA PANEL
PIP PANEL
Figure 1-3 PWB location
MONO
CARRIER
TOP CONTROL PANEL
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
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E
J
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
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EN 4 L04A AA2.
Safety and Maintenance Instructions, Warnings, and Notes
2. Safety and Maintenance Instructions, Warnings, and Notes
2.1 Safety Instructions
Safety regulations require that during a repair:
• Due to the chassis concept, a very large part of the circuitry
(incl. deflection) is 'hot'. Therefore, connect the set to the
mains via an isolation transformer.
• 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, you must return
the set 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 is flowing. 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 cord for external
damage.
• Check the strain relief of the mains 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 plug
and the secondary side (only for sets that have an isolated
power supply). Do this as follows:
1. Unplug the mains cord and connect a wire between the
two pins of the mains plug.
2. Turn on the main power switch (keep the mains cord
unplugged!).
3. Measure the resistance value between the pins of the
mains plug and the metal shielding of the tuner or the
aerial connection of the set. The reading should be
between 4.5 MΩ and 12 MΩ.
4. Switch the TV 'off' and remove the wire between the
two pins of the mains plug.
• Check the cabinet for defects, to prevent the possibility of
the customer touching any internal parts.
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 Fig. 2-1, to
discharge the picture tube. Use a high voltage probe and a
multi-meter (position V_dc). Discharge 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 potential. Available ESD
protection equipment:
– Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and ground cable)
4822 310 10671.
– Wristband tester 4822 344 13999.
• Together with the deflection unit and any multi-pole unit,
flat square picture tubes form an integrated unit. The
deflection and the multi-pole units are set optimally at the
factory. We do not recommend adjusting this unit during
repair.
• Be careful during measurements in the high voltage
section and on the picture tube.
• Never replace modules or other components while the unit
is '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.
2.4 Notes
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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.
2.4.1 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 color bar signal and stereo sound
(L: 3 kHz, R: 1 kHz unless stated otherwise) and picture
carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC
(channel 3).
• Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in standby (F). These values are
indicated by means of the appropriate symbols.
Safety and Maintenance Instructions, Warnings, and Notes
EN 5L04A AA 2.
• The picture tube panel has printed spark gaps. Each spark
gap is connected between an electrode of the picture tube
and the Aquadag coating.
• The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
2.4.2 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 expressed in micro-farads
(µ= x 10^-6), nano-farads (n= x 10^-9), or pico-farads
(p= x 10^-12).
• Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
• An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.
• The correct component values are listed in the Electrical
Replacement Parts List. Therefore, always check this list
when there is any doubt.
2.4.3 Practical Service Precautions
• Adjust your solder tool so that a temperature around
217 - 220 deg. C is reached at the solder joint.
• Do not mix lead-free soldering tin with leaded soldering tin;
this will lead to unreliable solder joints!
• Use only original spare parts listed in this manual. These
are lead-free parts!
• On the website www.atyourservice.ce.philips.com you can
find more information on:
– Aspects of lead-free technology.
– BGA (de-)soldering, heating-profiles of BGAs used in
Philips sets, and others
• 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 - 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.
• Before powering up the TV set with the back cover off
(or on a test fixture), attach a clip lead to the CRT DAG
ground and to a screwdriver blade that has a well insulated
handle. After the TV is powered "on" and high voltage has
developed, probe the anode lead with the blade, starting at
the case of the High Voltage Transformer (flyback - IFT).
Move the blade to within two inches of the connector of the
CRT. If there is an arc, you found it the easy way,
without getting a shock! If there is an arc to the
screwdriver blade, replace the part that is causing the
problem: the High Voltage Transformer or the lead (if it is
removable).
2.4.4 Lead Free Solder
This set is manufactured with lead-free production technology.
This is also indicated on the PWB by the PHILIPS lead-free
logo (either by a service-printing or by a sticker).
P
b
Figure 2-2 Lead-free logo
This set is produced with lead-free solder alloy as well as with
lead-free sub-parts. It can be considered as lead-free.
Due to this fact, 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.
• Use only adequate solder tools applicable for lead-free
soldering tin.
EN 6 L04A AA3.
3. Directions for Use
You can download this information from the following website:
http://www.philips.com/support
1. Click on “Downloads and Troubleshooting” [1].
2. Fill in the TV model/type number in the field “Which Model/
Type?” [2] and click on “Search” [3].
Note: The correct model/typenumber can be found on the
rear cover of the set. If you do not have the complete
model/typenumber, just fill in e.g. “32PW95” or “PW95” (do
not use wildcards).
3. When results are returned, click on the desired model/
typenumber under “Model” [4].
4. Now, click on the “Owner's manual” [5] in the desired
language. To read/open the PDF files you can download
and install the free Acrobat Reader
http://www.adobe.com/products/acrobat/readstep2.html
1
Directions for Use
2
4
Figure 3-1 Screenshot DFU website (1)
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050404
3
5
Figure 3-2 Screenshot DFU website (2)
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4. Mechanical Instructions
Mechanical Instructions
EN 7L04A AA 4.
Index of this chapter:
1. Set Disassembly
2. Service Position
3. Assies/Panels Removal
4. 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 (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 removal”), the Side AV assy/panel (see paragraph
“Side AV Assy/Panel removal”) and the PIP assy/panel (if
exists) (see paragraph “PIP Assy/Panel removal”).
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 Assies/Panels Removal
4.3.1 Front Interface Assy/Panel Removal
1
2
3
1
3
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1
2
A
3
4
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B
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Figure 4-1 Front interface assy/panel removal
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).
4.3.2 Side AV Assy/Panel Removal
E_14480_050.eps
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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 L04A AA4.
4.3.3 LTI/CTI Interface Panel Removal
Remove the LTI/CTI Interface panel from the Mono Carrier, by
disconnecting it from connector 1212.
4.3.4 Top Control Assy/Panel Removal
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.
4.3.5 Linearity Assy/Panel Removal
2
Mechanical Instructions
Figure 4-4 Linearity assy/panel removal
1. Release the two fixation clamps [1] to lift the panel out of
the bracket [2].
4.3.6 PIP Assy/Panel Removal
1. Release the two fixation clamps to lift the panel out of the
bracket.
4.4 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:
1. Check whether the AC power cord is mounted correctly in
its guiding brackets.
2. Check whether all cables are replaced in their original
position
1
1
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270204
Service Modes, Error Codes and Fault Finding
5. Service Modes, Error Codes and Fault Finding
Index:
1. Test Points.
2. Service Modes.
3. Problems and Solving Tips (related to CSM).
4. ComPair.
5. Error Codes.
6. The Blinking LED Procedure.
7. Protections.
8. Repair Tips.
5.1 Test Points
The chassis is equipped with test points printed on the circuit
board assemblies. These test points refer to the functional
blocks:
Table 5-1 Test point overview
Test point Circuit Diagram
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
F361, F362, F381, F382 ECO Scavem B2
Power supply A1
Line + Frame Deflection A2
A5
Connectivities
CRT Panel B1
EN 9L04A AA 5.
Perform measurements under the following conditions:
• Television set in Service Default Alignment Mode.
• Video input: Colour bar signal.
• Audio input: 3 kHz left channel, 1 kHz right channel.
5.2 Service Modes
Service Default mode (SDM) & Service Alignment Mode (SAM)
offers several features for the service technician, while the
Customer Service Mode (CSM) is used for communication
between the call centre and the customer.
This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the abilities of structured troubleshooting, error code
reading, and software version readout for all these chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see "ComPair" section).
Table 5-2 Software cluster overview
SW Cluster SW name
L4LAN1 L04AN1 1.4 TDA12060 9352 754 34557 04A93273 128 k China/Thai
L4LAF1 L04AF1 1.4 TDA12020 9352 754 39557 0474C06B 128 k S'pore Aus NZ
L4LAF2 L04AF2 1.4 TDA12020 9352 754 42557 04768A50 128 k Middle East
L4LAC1 L04AC11.4 TDA12010 9352 754 44557 04B67897 128 k Taiwan/Philipine
Abbreviations: A = AP, C = NTSC, F = Full TXT, N = Non TXT.
Hercules
Diversity 12 NC Checksum ROM Sizs Special Features
TDA12010 9352 754 36557
TDA12011 9352 754 37557
TDA12021 9352 754 41557
TDA12021 9352 754 43557
TDA12011 9352 754 45557
EN 10 L04A AA5.
Service Modes, Error Codes and Fault Finding
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:
For sets with PLL tuning AP-NTSC: Channel 3 is tuned
(61.25 MHz).
• For sets with PLL tuning AP-PAL: 475.25 MHz is tuned
• Colour system:
– For AP-NTSC: NTSC
– For AP-PAL: PAL B/G
• 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).
How to enter
To enter SDM, use one of the following methods:
• Press the following key sequence on the remote control
transmitter: '0 6 2 5 9 6' 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 mains. Then press the power button
(remove the short after start-up).
Caution: Entering SDM by shorting wires 9252 and 9275
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 (with the ComPair ‘Tools’, it should be
possible to enter SDM via the ComPair interface).
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.
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 Mains (i.e.,
unplugging the television) without using the POWER 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
• Run timer (maximum five digits displayed)
• Software version, Error & Option Bytes display
• Clear error buffer.
• Option settings
• AKB switching
• Software alignments (Tuner, 2 Tuner PIP, 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: '0 6 2 5 9 6' directly followed by the “On Screen
Display icon “i +” button (do not allow the display to time out
between entries while keying the sequence).
• Or via ComPair.
After entering SAM, the following screen is visible, with SAM in
the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.
00028 L04AF1 1.4 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
00028 L04AF1 1.4 SDM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
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Figure 5-1 SDM menu
060504
. Clear Clear ?
. Options
. AKB On
. Tuner
. 2 Tuner PIP*
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on
optional
*
Figure 5-2 SAM menu
E_14480_113.eps
060504
Service Modes, Error Codes and Fault Finding
EN 11L04A AA 5.
Menu explanation
1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count standby hours
(maximum four digits displayed).
2. AAABCD-X.Y. This is the software identification of the
main microprocessor:
– A = the project name (L04).
– 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: F = Full 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. 2 Tuner PIP. Used to align the tuner PIP (optional)
11. White Tone. Used to align the white tone. See 'White Tone'
in the Alignments section for a detailed description.
12. Geometry. Used to align the geometry settings of the
television. See 'Geometry' in the Alignments section for a
detailed description.
13. Audio. No audio alignment is necessary for this television
set.
14. NVM Editor. Used to change the NVM data in the
television set.
15. ComPair Mode. Used to switch on the television to ISP
mode (for uploading software)
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 an SDAM
submenu, you will return to the previous menu.
How to store SAM settings
To store settings changed in SAM leave the top level SAM
menu by using the POWER button on the remote control
transmitter or the television set.
How to exit
Switch the set to STANDBY by pressing the POWER 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 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)
Purpose
The Customer Service Mode shows error codes and
information on the TV operation settings. The call centre can
instruct the customer to enter CSM by telephone and read off
the information displayed. 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: '1 2 3 6 5 4' (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 L04AF1 1.4 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 PAL
8 NICAM STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50
E_14480_114.eps
Figure 5-3 CSM menu
Menu explanation
1. Indication of the service mode (CSM = Customer Service
Mode).
2. Reserved item.
3. Software identification of the main microprocessor (see
'Service Default Alignment Mode' for an explanation)
4. Reserved item for P3C call centres (AKBS stands for
Advanced Knowledge Base System).
5. Indicates the type of TV system or whether or not the
television is receiving an 'IDENT' signal on the selected
source. If no 'IDENT' signal is detected, the display will
read 'NOT TUNED'
6. Displays the last five errors detected in the error code
buffer.
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.
060504
EN 12 L04A AA5.
Service Modes, Error Codes and Fault Finding
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 (if necessary).
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.
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 (if necessary).
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.
Snowy picture
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).
Check CSM line 5. 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 6, 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 (if necessary).
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 (if necessary).
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 ComPair
5.4.1 Introduction
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development of the European DST (special remote control
transmitter for Service), which allows faster and more accurate
diagnostics. ComPair has three big advantages:
• ComPair helps you to get an understanding on how to
repair the chassis in a short time, by guiding you
systematically through the repair procedures.
• ComPair allows very detailed diagnostics (on I2C level)
and is therefore capable of accurately indicating problem
areas. You do not have to know anything about I2C
commands yourself because ComPair takes care of this.
• ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force electronic manual of the L04A AA chassis,
schematics and CBAs are only a mouse-click away.
5.4.2 Specifications
ComPair consists of a Windows based faultfinding program
and an interface box between PC and the product. The
Service Modes, Error Codes and Fault Finding
ComPair interface box is connected to the PC via a serial or
RS232 cable.
In the case of the L04 chassis, the ComPair interface box and
the TV communicate via a bi-directional service cable via the
service connector (connector 1005).
The ComPair faultfinding program is able to determine the
problem of the television set. ComPair can gather diagnostic
information in two ways:
• Automatic (by communication with the television):
ComPair can automatically read the contents of the entire
error buffer. Diagnosis is done on I2C level. ComPair can
access the I2C bus of the television. ComPair can send
and receive I2C commands to the microprocessor of the
television. In this way, it is possible for ComPair to
communicate (read and write) to devices on the I2C
busses of the television set.
• Manually (by asking questions to the services): Automatic
diagnosis is only possible if the microprocessor of the
television is working correctly, and only to a certain extent.
When this is not the case, ComPair will guide you through
the faultfinding tree by asking you questions (for example;
Does the screen give a picture? Click on the correct
answer: YES / NO) and showing you examples (for
example; Measure test-point I7 and click on the correct
oscillogram you see on the oscilloscope). You can answer
by clicking on a link (for example, text or a waveform
picture) that will bring you to the next step in the faultfinding
process.
By a combination of automatic diagnostics and an interactive
question and answer procedure, ComPair will enable you to
find most problems in a fast and effective way.
Beside fault finding, ComPair provides some additional
features like:
• Uploading or downloading of presets.
• Management of preset lists.
• If both ComPair and the Force electronic service manual
are installed, all the schematics and CBAs of the television
set are available by clicking on the appropriate hyperlink.
• Example: Measure the DC-voltage on capacitor C2568
(Schematic/Panel) at the Mono-carrier.
– Click on the 'Panel' hyperlink to automatically show the
CBA with a highlighted capacitor C2568.
– Click on the 'Schematic' hyperlink to automatically
show the electronic position of the highlighted
capacitor.
TO SERVICE
CONNECTOR
PC VCR I2CPower
Figure 5-4 ComPair Interface connection
5.4.4 How To Order
ComPair order codes:
• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.
• ComPair interface (excluding 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).
• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003).
• ComPair interface cable: 3122 785 90004.
• Transformer (non-UK): 4822 727 21632.
Note: If you encounter any problems, contact your local
support desk.
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
EN 13L04A AA 5.
9V DC
E_06532_008.eps
190204
5.4.3 How To Connect ComPair
1. First, install the ComPair Browser software on your PC
(see the Quick Reference Card for installation instructions).
2. Connect the RS232 interface cable between a free serial
(COM) port of your PC and the PC connector (marked with
'PC') of the ComPair interface.
3. Connect the mains adapter to the supply connector
(marked 'POWER 9V DC') on the ComPair interface.
4. Switch the ComPair interface 'off'.
5. Switch the television set 'off' (and remove the mains).
6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface
(marked 'I2C') and the ComPair connector on the family
board (connector 1005).
7. Plug the mains adapter in the mains outlet and switch the
ComPair interface 'on'. The green and red LEDs light up
together. The red LED turns off after approximately 1
second, while the green LED remains lit.
8. Start the ComPair program and read the 'introduction'
chapter.
You can read the error buffer in 3 ways:
• On screen via the SDAM (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.
EN 14 L04A AA5.
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 SDAM menu:
– To enter SAM, press the following key sequence on the
remote control transmitter: '062596' directly followed
by the “OSD" icon 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 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).
Service Modes, Error Codes and Fault Finding
Table 5-3 Error codes overview
ERROR Device Error description Check item Diagram
0 Not applicable No Error
1 Not applicable X-Ray / over-voltage protection (US only) 2411, 2412, 2413, 6404, 6411, 6412. A2
2 Not applicable High beam (BCI) protection 3404, 7405 A2
3 Not applicable Vertical guard protection 3466, 7451, 7452, 7453, 7454 A2
4 Tuner UA1316/A I2C error while communicating with 2nd tuner 1000, 5010 (PIP Module) F2
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 communicating with the EEPROM 7601, 3604, 3605 A5
10 Tuner = I2C error while communicating with the PLL tuner 1000, 5001 A3
11 TDA6107/A Black current loop instability protection 7330, 3351, CRT B1
12 SDA9488X I2C error while communicating with the PIP processor 7242 (PIP Module) F1
13 Not applicable - - 14 DVD Loader I2C error while communicating with the DVD Interface module DVD Interface module DVD Loader
15 TDA9178T/N1 I2C error while communicating with LTI module 7610 H
16 TDA9887 I2C error while communicating with PIP_Demodulator 7201 F2
17 Not applicable - - 18 Not applicable - - 19 TDA1200 I2C error while communicating with SSD stereo sound decoder 7200 A4
20 TDA1200 I2C error while communicating with video cosmic in Hercules IC 7200 A4
Note: Errors 7, 8, 13, 17, 18 are not applicable.
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 LED will blink the contents of the
error-buffer:
• When all the error-codes are displayed, the sequence
finishes with an 'on' 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 'on' 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 'on' blink of 1.5 seconds to finish the sequence,
• The sequence starts again at 12 short blinks.
Service Modes, Error Codes and Fault Finding
EN 15L04A AA 5.
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 description, see the "Customer Service Mode,
Service Default mode" and "Service Alignment Mode" sections.
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, the default NVM values are given.
Table 5-4 NVM default values
NAFTA Region Address (dec) Value (hex)
EW (EW width) 19 25
PW (EW parabola width) 20 1A
HS (Horizontal shift) 21 1A
HP (Horizontal parallelogram) 22 1F
HB (Horizontal Bow) 23 1F
UCP (EW upper corner parabola) 24 1E
LCP (EW lower corner parabola) 25 28
TC (EW trapezium) 26 1A
VS (Vertical slope) 27 25
VA (Vertical amplitude) 28 1E
SC (S-Correction) 29 19
VSH (Vertical Shift) 30 1A
VX (Vertical Zoom) 31 19
VSL (Vertical scroll) 32 20
VL (Vertical linearity) 33 20
BLOR (Black level Offset - Red) 34 1D
BLOG (Black level Offset - Green) 35 13
AGC (AGC Takeover) 36 14
OIF (IF-PLL Offset) 37 20
AGC10 (AGC 10) 38 1
H60 (60 Hz Horizontal Shift) 39 9
PF_SC_PWL (Peaking Frequency, Soft Clipper,
Peak White Limit)
COR (Phase 1 time constant, Video Dependant
Coring, Ratio & White stretch)
60 Hz Vertical amplitude 42 40
YD & CL 43 5A
RGB amplitude for full teletext mode 46 8
NVM_TABLE_VERSION 60 16
OPTION_TABLE_VERSION 61 7
CVI_BLOR 62 15
CVI_BLOG 63 0F
TXT Brightness 64 17
V60 offset (60Hz Vertical Amplitude) 66 FE
FOAB, CHSE 139 3
SPR, WS 140 0
VMA, SVM 141 32
NVM_SOC_SMD 142 3
CCC_Preset_Gain_Red 143 1F
CCC_Preset_Gain_Green 144 1F
CCC_Preset_Gain_Blue 145 1F
NVM_FMWS 149 3
NVM_ASD_SC1_THR 150 10
NVM_CRYSTAL_ALIGN 208 3F
Last Brightness (VID PP others) 264 30
Last Color (VID PP others) 265 30
Last Contrast (VID PP others) 266 E4
Last Sharpness (VID PP others) 267 43
Last Hue (VID PP others) 268 32
Last Colour Temperature (VID PP others) 269 4
White-D Cool Red 294 FD
White-D Cool Blue 296 0
White-D Normal Red 297 1A
White-D Normal Green 298 20
White-D Normal Blue 299 1B
White-D Warm Red 300 2
White-D Warm Blue 302 FA
Last Volume 343 19
Last Balance 344 32
Last Treble (AUD PP others) 345 32
Last Bass (AUD PP others) 346 32
40 0A
41 0C
EN 16 L04A AA5.
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
No
Check other
fusible resistor
and capacitor in
the circuit
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
End
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
E_14480_057.eps
190204
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 17L04A AA 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
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
Ok
Picture
appears?
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,
Picture not appearing
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.
Not Ok
Check deflection
circuit
No Picture, No Sound
Yes
Check tuning
supply voltage,
pin 9 of tuner
>30V & <35V
Check supply
voltage, pin 7 of
tuner
5V
Yes
Check Tuner
pin 4 & 5
I2C Bus
Check
Supply
V
No
T
Section
Check Power
No
Supply
No Picture,
No Sound,
Raster Ok
Picture not appearing
Not Ok
Ok
Picture
appears?
Ok
End
Ok
E_14480_061.eps
170204
Check AGC
Voltage, pin 1
of tuner
AGC voltage
changes with
different signal
strength
No
Check AGC
circuit section
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.
Ok
Yes
Replace Tuner
No
Check other
functional area
E_14480_062.eps
Figure 5-10 Fault finding tree “No picture, no sound”
170204
EN 18 L04A AA5.
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
E_14480_064.eps
Replace
Tuner
Not Ok
Tuner
170204
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.
Table 5-5 NVM default values for Scavem
Figure 5-12 Fault finding tree “Unable to perform tuning”
Description Address (dec) Address (hex) Value (hex)
SPR, WS 140 8C 00
VMA, SVM 141 8D 32
NVM_SOC_SMD 142 8E 03
5.8.8 Audio Processing
No Sound
Picture Ok,
No Sound
Tuner IF Ok Check Tuner/IFNot Ok
Ok
Check AUDOUTLSL &
AUDOUTLSR pin at
Hercules
Ok
Service Modes, Error Codes and Fault Finding
Check Hercules IC
Not Ok
EN 19L04A AA 5.
Check Audio
Amplifier
Not Ok
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
170204
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 L04A AA5.
Service Modes, Error Codes and Fault Finding
Block Diagrams, Testpoint Overviews, and Waveforms
6. Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
21L04A AA 6.
CVBS (YELLOW)
LEFT (WHITE)
RIGHT (RED)
HEADPHONE
RIGHT
SPEAKER
D
91
9P
1212
4P
1219
NC
4P
1206
RED
BLACK
SIDE
A/V PANEL +
HEADPHONE
1279
3P
to
SUB
WOOFER
(OPTIONAL)
PIP
F
NC
5P
1220
4P
1214
1252
1254
1278
TUNER
AQUADAG
DEGAUSSING COIL
CRT
16:9
ROTATION
BLUE
RED
FRAME
COIL
B
YELLOW
ORANGE
SCAVEM
COIL
EHT
CRT
BLACK
RED
LEFT
SPEAKER
TOP CONTROL PANEL
E
1010
3P
(component view)
CRT PANEL
B
1351
7P
5P
1332
1352
CRT
SOCKET
1361
3P
CRT PANEL
1381
3P
FRONT INTERFACE
1693
6P
7P
1504
2P
5P
4P
MONO
A
CARRIER
3P
LTI/
H
CTI
1401
12P
5P
1451
2P
9P91
LOT
(track view)
LTI/CTI
H
INTERFACE
1216
1206
7P 4P
4P 5P 15
1215
1214
1212
12P
5P
1280
1207
TUNER
1682
3P
1206
7P
7P
1221
1204
7P
1212
1219
1505
2P
1404
2P
5401
J
1693
6P
1212
2P
LINEARITY&
G
PANORAMA
1462
3P
1464
2P
1461
2P
MAINS
SWITCH
1211
MAINS
CORD
2P
1005
3P
COMPAIR
CONNECTOR
E_14480_080.eps
170504
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply and Deflection
22L04A AA 6.
SUPPLY AND DEFLECTION
SUPPLY
FRONT INTERFACE
J
1211
A1
1505
1505
1
2
1231
MAINS
SWITCH
(not USA)
POWER SUPPLY
Degaussing
1506
OR
MAINS
SWITCH
(not USA)
I511
6512
3519
7532
F508 268V
/ div DC
F511 15V5 / div DC
F531 2V7 / div DC
F537 0V (N.A.)
Coil
2511
6533
3530
I531
1212
1504
1500
T4E
7511
TEA1506T
2
Vcc
CONTROL
6
CTRL
STANDBY
SUPPLY
7531
TEA1620
3
Vcc
CONTROL
6
REG
11
AUX
F552 130V
F561 15V9
F564 9V4 / div DC
F573 0V (N.A.)
1
2
5500 :
5502
DRAIN
IC
IC
SOURCE
DRIVER
SENSE
DEMAG
DRAIN
3507
t
14
/ div DC
/ div DC
I513 I516 I519 I533
LINEARITY & PANORAMA
TO 1221
A5
CONNECTIONS
G
ONLY FOR:
28"WSRF LA/NA
32" WSRF LA/NA
28" WS-SF LA
1404
4
1
1462
1
2
3
+9V
I2SD/1
7460
ACTIVATING
CIRCUIT
2466
LINEARITY AND
PANORAMA
CORRECTION
2474
2475
7462
7463
2464
2467
1463
1461
4
1
HOR.
DEFL.
COIL
DEFLECTION
HERCULES
Vbatt
-Vaudio
+Vaudio
+6VA
A4
A4
+3V
+6VA
+6VA
+6V
Vaux
2x
A4
INTF_Y GREEN_IN
A5
EHTinfo
A2
F401 130V
F402 32V8
56
97
7200-H
(SYNC)
VIDEO
IDENT
MAIN
SYNC
SEPARATOR
EHTo
/ div DC
/ div DC
2240
PHI 1
DETECTOR
VERTICAL
SEPARATOR
HORIZONTAL
GENERATOR
PROTECTION
SYNC
F412 F414
2V
/ div DC
20µs
/ div
7541
1503
43
ENERGIZING
2
6500
AC
I513
3513
3514
11
I519
3532
9
3517
7
3518
I533
14
2534
12
6532
3538
3534
3531
F508
2505
DC
5520
I516
7514
9
8
4
5
3
2
4
3
35321532
1A
5531
4
5
1
2
6511
G
7512
MAIN
SUPPLY
D
S
3516
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
F552
1543
7571
REFERENCE
7573
6565 6566
2564
2535
2536
V_DG
6571
CIRCUIT
STANDBY
CIRCUIT
3565
F536
6537
+3V3
S
G
7561
6676
D
7536
F563
F561
3575
3576
Stdby_Con
I573
POWER-DOWN
F564
5537
F537
7535
I548
For IDTV only
F455 F458 F459
3232
112
OSC.
SAND-
CASTLE
X-RAY
VERTICAL
DIVIDER
200V
20µs
A2 A2
EHTinfo
113 116
VERTICAL
GUARD
DETECTOR
PHI 2
DETECTOR
VERTICAL
SAW-
THOOTH
/ div DC
/ div
Vguard
HORIZONTAL
OUTPUT
E/W
+
GEOMETRY
VERTICAL
OUTPUT
+
GEOMETRY
F418
5V
/ div DC
20µs
/ div
F460 F461
R.G.B.
BLANKING
F452 -13V4
F453 190V8
62
63
108
106
107
TO RGB
PROC.
HDRIVE
HD
7207
SANDCASTLE
A5
HD_PIP
3291
SEE BLOCK DIAGRAM VIDEO
/ div DC
/ div DC
A5
EW_DRIVE
VDRA
VDRB
I416 I417 I468I423 I433 I462
LINE + FRAME DEFLECTION
A2
LINE
HD
6486
-9V
5402
7404
E/W
+8V
+8V
3420 3440
7410
I417
7484
3498
FRAME
+9V
F460
F461
7455 7456
3462
F412
+6VA
BU4508DX
F418
7406
3463
7408
7405
3497
F414
LINE
OUTPUT
CIRCUIT
+
E/W
CORR.
7452
3465
-12V
7411
7454
1404
1
2
Vbatt
OR
7451
7453
F402
6401
5445
3
1
FOCUS
10
HOR.
DEFL.
COIL
6
5
7
8
9
SEE BLOCK DIAGRAM VIDEO
3474
F458
3466
1491
1
2
VER.
DEFL.
COIL
F459
3461
FRAME_FB
3471
EHT
VD
Vguard
VG2
1454
3442
6481
Vbatt
A5
A4
CRT
I433
TO
B1
3481
3410
3411
+Vbatt
3451
2403
6452
6483 6484
3458
6453
3484
3485
6456
1452
3457
2456
3455
6459
7401 : 7403
7480 : 7483
EHTb
EHTinfo
PROC.
Vbatt
+
+
BCL
F452
F453
F455
6454
6455
FILAMENT
VIDEO/SUPPLY
3401
F401
POWER-DOWN
FRAME_FB
EHTb
EHTinfo
BCL
VIDEO/SUPPLY
FILAMENT
EHTb
VT_SUPPLY
A4
A1
A4
A4
-12V
+9V
1401
5
4
TO 1351
3
B1
2
CRT
1
100V
5µs
/ div DC
/ div
100V
5µs
/ div DC
/ div
2V
5µs
/ div DC
/ div
100V
5µs
/ div DC
/ div
HOT GROUND COLD GROUND
5V
20µs
/ div DC
/ div
20 V
5ms
/ div DC
/ div
1V
5ms
/ div DC
/ div
500mV
5ms
/ div DC
/ div
500mV
5ms
/ div DC
/ div
500mV
20V
/ div DC
20µs
/ div
20µs
/ div DC
/ div
10V
20µs
/ div DC
/ div
10V
20µs
/ div DC
/ div
10V
5ms
/ div DC
/ div
5V
5ms
/ div DC
/ div
E_14480_081.eps
060504
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
3139 123 5673.2
F011 A8
F101 B8
F102 B8
F103 B8
F104 B8
F105 B8
F106 B8
F107 B8
F108 B8
F109 B8
SERVICE
TESTPOINT
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
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
23L04A AA 6.
F535 C4
F536 C5
F537 C3
F541 C3
F542 C3
F551 C5
F552 D5
F561 C4
F562 D4
F563 C4
F564 C5
F573 C5
F581 B3
F582 B4
F583 C4
F682 B1
F683 B1
F685 B1
F691 C1
F692 D1
F693 E1
F694 C1
F695 C1
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
E_14480_028.eps
170504
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
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
I582 B4
I583 B4
I584 B4
I585 B4
I587 C4
I588 B4
I681 E1
I682 B1
I683 B1
I686 C1
I687 D1
I688 C1
I689 D1
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 C2
I934 B2
I935 B1
I936 B2
I937 C2
I938 B2
I939 B2
I940 B2
I941 C2
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
I959 B4
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Video
24L04A AA 6.
VIDEO
TUNER IF
A4
9002
+5V
+5VS
FM
SDA
A4
SCL
A4
SEL-LLPIM
A4
3001
3000
PIP
PIP TUNER IF MULTISTANDARD VIDEO DEMODULATION
F2
+5VA
ERR
4
79
PIP
+
TV TUNER
5
4
SDA
SDL
SSIF
VIF_1
VIF_2
RF
SIF1
SIF2
5001
VST
AGC
1
1000
UV1316/A
TV
3002 3001
VT_SUPPLY
A2
6001
6 7
FM-RADIO
TUNER
TV TUNER
5
4
7001
FILTER
SELECTION
BZX79-C33
98
VT
10
FM
+
11
IF
AGC
1
50019003
1000
ERR
10
TV
I002
I001
7003
F002
1002
1003
F004
1004
IF
SSIF
A4
11
7001
7200-A (IF)
24
25
31
29
30
F002
TO
AUDIO
PART
HERCULES
PHASE
DISC
VIDEO
TUNER IF
AGC
AUDIO IF
QSS/AM
1002
1003
IF
TUNER_AGC
SEL_P_N
See block
diagram
AUDIO
VIF_1
VIF_2
VCO
VIDEO
DEMOD
7201
TDA9887
1
VIDEO
2
14
AGC
3
PLL
1201
15 19
VIDEO
PLL
IF
DEM.
ERR
16
910
11
3207
AGC
ADJ.
3206
SOUND
TRAP
PLL
FM/QSS
SOUND
MIXER
AM
AM
SOUND
DET.
SWITCH
TO
AUDIO
PART
See block
diagram
AUDIO
7202
17
SDA
SCL
86
N.C.
PIP-PROC.
F1
A5
1219
SC2_CHROMA_IN
SIDE_CHROMA_IN
CVBS1_PIP
1219
INTF_CVBS_IN
1
INTF_CVBS_OUT
4
VD
2
HD_PIP
3
CONN.
INTF_CVBS_IN (NC)
5
INTF_CVBS_OUT
9
VD
7
HD-PIP
8
SW_SC2_CVBS
SC1_CVBS_IN
SC2_Y/CVBS_IN
SIDE_Y/CVBS_IN
CVBS1
7242
SDA9488X
28
INPUT
24
26
4
3
SEE BLOCK DIAGRAM DEFLECTION
A4
7200-B (CVBS I/O + FILTERS + COLOUR DECODING)
81
74
71
78
70
77
SWITCH
SYNC.
PROC.
ADC
ERR
12
1
2
STANDARD
DECODING
1241
MULTI
Y
UV
INPUT
SWITCH
VIDEO
IDENT
RGB
MATRIX
R
G
B
CVBS/Y
C
DAC
NC
SWITCH
COMB
FILTER
&TRAP
1220
R
G
B
1
2
3
FAST
RGB
SWITCH
11 12 13 6 5
CHROMA/CVBS
18
INTF_Y/GREEN_OUT
17
16
INTF_PbBLUE_OUT
15
OUTPUT
SWITCH
PAL, NTSC
SECAM
DECODER
INTF_PrRED_OUT
INTF_FBL
3244
SDA
3243
SCL
YintYint
Uint
Vint
1212
5
1
3
6
1214
1
3
INTF_CVBS_OUT65
SC1_FBL
N.C.
H
1214
1216
LTI/CTI
1
3
5
1
7200-C
INSSW352
INTF_Y_OUT
INTF_Y
INTF_U_OUT
INTF_Pb
INTF_V_OUT
INTF_Pr
INTF_FBL
INTF_Y_OUT
INTF_U_OUT
INTF_V_OUT
(RGB/YPrPb/YUV
INPUT SWITCHING)
Yint
Uint
Vint
SELECTION
LOGIC
2
6
3
7
4
8
15
14
7611
TDA8601T
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
YUV
RGB
DVD
1212
1
2
3
SC1_RED_IN
SC1_GREEN_IN
SC1_BLUE_IN
49
50
51
YPrPb2/
YPrPb3
SELECTION
DVD
TO
DVD
DVD
3-STATE
3-STATE
3-STATE
3-STATE
A5
1212
1
2
3
165
SELECTION
12
11
10
13
RGB2/
RGB3
RGB
DVD
7610
TDA9178T
7630
7635
6
YIN
LTI/C+I
8
UIN
PROC.
9
VIN
NC
PULSE FORMER
INTF_V-OUT
53
TO
RGB
19
YOUT
17
UOUT
16
VOUT
ERR
15
SC
1
1
SDA
SCL
3
INTF_Y_OUT
INTF_U-OUT58INTF_Pb/BLUE_IN
INTF_Y/GREE_IN
55
DVD
YUV
54
TO
57
YUV
TO
DVD
Y_2
Pb_2
Pr_2
INTF_FBL
SANDCASTLE
SDA
SCL
INTF_BBL
INTF_Pr/RED_IN
59
YUV
1212
4
6
8
9
10
12061215
1
3
6
DIGITAL SIGNAL PROC.
- 4:3 LINEAR/NON-LINEAR SCALING
- DOUBLE WINDOW PROC.
ADC
CONN.
A5
1212
INTF_Y/GREEN_IN
4
INTF_Pb/BLUE_IN
6
INTF_Pr/RED_IN
8
SEE BLOCK DIAGRAM
DEFLECTION
INTF_FBL
9
SANDCASTLE
10
SEE BLOCK DIAGRAM
1206
1
3
6
SEE BLOCK DIAGRAM CONTROL
DEFLECTION
E
D
INTF_BBL
DAC
DINT
A4
A4
A4
Y
Pr
Pb
REAR I/O CINCH
A8
SVHS
154
AV1
V
AV2
V
YUV INPUT
Y
U
V
MONITOR
OUTPUT
V
SIDE AV
D
SVHS
154
VIDEO
IN
CRT
F242
ROT
B1
13311204
B
1
1
2
3
4
5
6
7
G
2
R
3
4
5
6
7
+200V
+200VA
BC_INFO
SVM
ROT
V14
2351
3351
1351
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
F201 2V / div DC
F203 2V / div DC
HERCULES
A4
7200-D (YUV PROCESSING)
Y
Pr
Pb
PEAKING
SCAVEM
PROC.
F205
500mV
10ms / div
WHITE/BLACK
GAMMA COR.
TINT CONTROL
/ div DC
STRETCH
SKINTONE
F206
1V / div DC
20µs / div
F240 F241 F242
500mV / div DC
20µs / div
MATRIXSATURATION
500mV / div DC
ADDER
R_Y
G_Y
B_Y
20µs / div
RGB
500mV / div DC
R
G
B
64
F331 F332 F333
20µs / div
7200-E (RGB PROCESSING + CATHODE CALIBRATION)
CLAMP
MUTE
500mV / div DC
20µs / div
BLUE
STRETCH
+
&
CONTRAST
FROM µP PART
R_OSD
G_OSD
B_OSD
OSD
INSERTION
500mV / div DC
20µs / div
FBL
BRIGHTNESS
+
PEAK WHITE
LIM.
BEAM
CURRENT
LIM.
500mV / div DC
20µs / div
CATHODE
CALIBRATION
46
3226
42
STAGE
3227
43
3228
44
45
OUTPUT
BCL
A2 A4
7308
BOUT
GOUT
ROUT
IBLACK
SVM
A5
F240
F241
SCAVEM
B2
ROT
SVM
V13
7330
3
V11
1
2
V12
VSVM
FILAMENT
1351
123 45
to 1401
A2
DEFLECTION
FILAMENT
1381
1
ROTATION
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
RO TATI O N
COIL
2
(OPTIONAL)
1361
1
SCAVEM
COIL
2
(OPTIONAL)
AQUADAG
DEFLECTION
FOCUS
VG2
A2
FROM DEFLECTION
E_14480_082.eps
170504
CRT
25kV
EHT
Block Diagrams, Testpoint Overviews, and Waveforms
Testpoint Overview CRT, LTI & PIP Panel
CRT
25L04A AA 6.
3139 123 5674.1
LTI INTERFACE
3139 123 5740.1
PIP
3139 123 5821.1
E_14480_083.eps
070504
F001 B5
F002 B4
F003 C4
F201 B4
F202 A5
F240 C3
F241 A3
F242 A3
F243 A3
F244 A3
F245 B4
F271 A3
F272 A2
F273 A2
F274 B2
F275 A3
F276 B2
F279 B3
F501 A1
F502 A2
F503 A5
F504 A5
F505 B2
F506 C2
F507 C1
F508 C2
I001 B5
I002 C4
I003 C4
I004 C4
I005 B4
I006 B4
I007 C4
I201 B5
I202 A4
I203 A4
I204 A4
I205 B5
I206 B5
I207 A5
I208 A4
I209 A4
I210 B5
I213 A5
I217 A4
I241 C2
I242 B3
I243 B2
I244 C3
I245 C3
I248 B3
I249 A4
I250 A4
I251 A3
I252 A3
I253 B3
I254 B3
I255 B3
I256 B4
I257 C3
I258 B3
I259 B3
I263 B2
I271 A3
I273 A3
I274 B2
I276 A2
I277 B2
I278 B2
I279 A2
I280 B2
I281 C2
I501 A1
I502 A1
I503 A1
I504 B1
I505 B1
I506 B1
I507 B1
I508 B1
I509 C1
I510 B2
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Audio/Control
AUDIO
TUNER IF
A3
+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
FM
3001
3000
VT_SUPPLY
A2
50019003
1000 6, 7 9
2
ERR
10
TV
I002
I001
1252
3
1
FM-RADIO
TUNER
+
TV TUNER
5
4
7001
FILTER
SELECTION
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
1004
SSIF
VIF_1
VIF_2
RF
SIF1
SIF2
A4
24
25
31
29
30
HERCULES
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
26L04A AA 6.
REAR I/O CINCH
A8
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
AUDIO
SOURCE
SELECTION
AUDIO AMPLIFIER
A7
A4
VOL_MUTE
ADC DAC
DIGITAL
SOUND
PROCESSING
DIGITAL
STEREO
SOUND
DECODER
7991
7992
VOLUME
+
MUTE
ERR
19
7990
TDA2616Q
I951
1
I952
9
2
7991
AUDIO
SELECT
AUDIO
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
1280
1
OR
2
Stby_Con
POWER_DOWN
L 8 Ohm/15W
R 8 Ohm/15W
MUTING
D
5
2
3164
3161
SIDE AV
7140
7993, 7994
MUTE
7103
MUTING
12781254
1
2
SUBWOOFER
(optional)
SPDIF
(optional)
MONITOR
OUT
L
R
L 8 Ohm/15W
R 8 Ohm/15W
1228
1
2
3
A5
CONTROL
FRONT INTERFACE
J1
(PARTLY)
6692
TSOP1836
+3.3V
ON/OFF
USA only
6693
6691
KEYBOARD
LIGHT_SENSOR
LED
TOP CONTROL
E
LOCAL
KEYBOARD
FRONT CONTROL
A9
1693
3
IR
4
5
6
1693
3
4
5
6
6693
6692
TSOP1836
+3.3V
LOCAL
KEYBOARD
(USA only)
F692
+
ON/OFF
6691
1010
2
LED
KEYBOARD
LIGHT_SENSOR
LIGHT_SENSOR
LED
KEYBOARD
IR
OR
IR1
OR
HERCULES (CONTROL)
A4
1682
2
KEY_PROTN
IR
LED
LIGHT-SENSOR
POWER_DOWN
A1
24MHz
1205
7200-G (Control)
TDA12001H1
I/O PORTS
9
32
IIC BUS
30
TRANSCEIVER
14
PWM
31
OUTPUTS
TELETEXT
(close caption)
ROM
RAM
119
118
+
+
+
CPU
+
+
ERR
20
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
32043202
SDA
SCL
E
DIAGRAM
D
A7
A1
A7
B2
A3
A5
G
A5
A5
see
IIC
(FOR LTI
AND PIP)
A5
FEATURES
EEPROM
(NVM)
7
ERR
8
6
5
9
+3.3V
36043605
see
IIC
DIAGRAM
SERVICE JUMPER
9275
SDM
9252
F003 0V (N.A.)
F201 2V / div DC
F203 2V / div DC
F004 I001 I002
200mV
/ div AC
10ms
/ div
F205
/ div DC
500mV
10ms
/ div
F240 F241 F242
500mV
/ div DC
20µs
/ div
50mV
/ div AC
2ms
/ div
F692
2V
/ div DC
2ms
/ div
1V
/ div DC
20µs
/ div
F206
1V
/ div DC
20µs
/ div
500mV
/ div DC
/ div
/ div
500mV
500mV
20µs
I952I951 F952 F955
50mV
/ div AC
2ms
1V
20µs
20µs
2ms
/ div DC
/ div
/ div DC
/ div
/ div AC
/ div
500mV
2ms
/ div AC
/ div
E_14480_025.eps
060504
Block Diagrams, Testpoint Overviews, and Waveforms
I2C and Supply Voltage Overview
SUPPLY LINES DIAGRAM
POWER SUPPLY
A1
SUPPLY
PRIMARY
SIDE
5520
9
8
4
5
3
2
3
4
3532
5531
4
5
1
2
HOT GROUND COLD GROUND
7541
1503
43
ENERGIZING
2
CIRCUIT
1
(optional)
5551 5552
17
18
5562
14
13
5561
10
12
1
7515
TCET1103
2
6564
6535
10
6536
8
6537
6
6551
6563
6562
3571
6573
2564
2535 6676
2536
1543
7571
REFERENCE
CIRCUIT
7573
STANDBY
CIRCUIT
6565 6566
V_DG V_DG
6571
3575
3576
+3V3
STDBY_CON
POWER-DOWN
7561
3565
5537
D
S
7535
G
7536
only used in sets with DVD
Vbatt
-Vaudio -Vaudio
+Vaudio
+6VA
AUDIO_AMPLIFIER
A7
Vaudio+1
CLASS D
A6
AUDIO AMP
(RESERVED)
+Vaudio
A4
A4
+6VA
+3V
+6VA
+6V
Vaux
2X
2X
2X
1903
see diversity table
*
+6VA
HERCULES
A4
+3V
+3.3V
Stdby_Con
A1
POWER_DOWN
A1
+5V
+Vbutter
+6V
+8V
9911
9910
27L04A AA 6.
LINE + FRAME DEFLECTION
A2
+Vbatt
FILAMENT
To 6403, 3480,
3420, b-7401,
c-7403
on
To
VERTICAL
DEFLECTION
7605
7604
3609
A2
Vbatt
1401
1
2
3
4
5
+3V (N.C.)
+6V
+6VS
+3.3V
+5V
5445
7990
TDA2616Q
5
OUTPUT
7
AUDIO
Vaudio+1
5402
A4
EW_DRIVE
7405
OUTPUT
CIRCUIT
CORR.
7404
HDRIVE
A4
To 6407
on
A2
3401
VT_SUPPLY
LINE
E/W
3
1
1404
1
2
+
HOR.
DEFL.
COIL
*
V_DG
7200
HERCULES
19
35
125
15
31
+3.3V
+5V
+Vbutter
+6V
+8V
PWM1
115
16
+6VA (To 3445)
DECDIG
6207
3217
3295
2204
7202
VT_SUPPLY
2X
3210
3211
3206
3209
3208
7210
G
7204
7201-2
7203
7201-1
7209
D
S
D
G
S
+3V
+1.8V_A
+1.8V_B
EHT
FOCUS VG2
10
BCL
6
5
7
8
9
1454
6453
6456
3457 2456
3455
TO
CRT
B1
6452
3458
3484
3485
1452
6459
+3V
+6V
VT_SUPPLY
RESET +5V
A4
Vbatt
6483 6484
To 3405, 3463,
3475
on
A2
VIDEO SUPPLY
6455
3606
6454
4604
FILAMENT
VIDEO SUPPLY
-12V
+9V
7603
L78L33ACZ
13
3608
3607
CRT
B1
1351
A5
+9V
VSVM
1
+200V
2
FILAMENT
3
4
5
FEATURES & CONNECTIVITIES
+9V
+3.3V
1X
2X
+5V
1X
4611
B2
FILAMENT
3639
3610 6610
9605
SCAVEM
VSVM
FILAMENT
+200V
3351
F1
1212
962
+200A
1221
1
+9V
1212
12
+9V
+9V
+9VA
+9VA_1
+8V
Vbuffer
PIP POWER SUPPLY
+9V
3505
7502
5501
+3V3
5502
7501
MC34063AD
SUPPLY
6502
IC
+8V
Vbuffer
6509
6503
-/B33
TUNER IF
A3
+5V
5001
+5V
VT_SUPPLY
REAR I/O CINCH
A8
Vbutter
FRONT CONTROL
A9
+5V
1X
1X
1X
12
6504
5507
2507
????
PIP TUNER IF
F2
9002
6001
-/C33
3690 3693
6694
-/C5V1
FRONT INTERFACE
J
1693
LINEARITY & PANORAMA
G
1462
1
LTI/CTI
H
1212
3610
6610
9V
5504
5506
5220
5010
9613
+5V
+3V3
+5VS
+5VA
+33V
To TUNER
Pin 6.7
To TUNER
Pin 9
Vbutter
To LED
To 3-6692
(IR_REC)
+6V
+9V
+8V
1693
1
1216
4
I2C BUS INTERCONNECTION DIAGRAM PIP MODULE
A4
HERCULES
7200
SET
PROCESSOR
PART OF
VIDEOPROCESSER
(HERCULES)
ERR
19,20
+3.3V
+3.3V
3202
20
21
22
+3.3V
3279 3280
2
1
3207
3214
62116210
+3.3V
3266
3265
3204
SDA
SCL
WRITE_PROTECT
E
D
A5
ERR
6
FEATURES & CONNECTIONS
+3.3V
3601
56
PCF8511
EEPROM
7
(NVM)
7601
ERR
9
TUNER IF
A3
1206 1206
E
D
36043605
30003001
54
1000
TUNER
ERR
10
COMPAIR
1005
1
2
3
For
only
1
3
LTI/CTI INTERFACE
H
1
3
14 11
7610
TDA9178T
LTI/CTI
PROC.
ERR
15
SDA
SCL
36173616
F1
1215 1214
1
3
PIP POWER SUPPLY TUNER IF
32433244
56
7242
SDA9488X
PIP
PROC.
ERR
12
SDA
SCL
1
3
F2A5
30013002
54
1000
UV1316
TUNER
PIP
ERR
4
10 11
7201
TDA9887
PIP
IF
DEMO.
ERR
16
32063207
ERROR CODE LIST
ERROR Device Error description Check item Diagram
0 Not applicable No Error
1 Not applicable X-Ray / over-voltage protection
2 Not applicable High beam (BCI) protection 3404, 7405 A2
3 Not applicable Vertical guard protection 3466, 7451, 7452, 7453,
4 Tuner UA1316/A I2C error while communicating
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 communicating
10 Tuner = I2C error while
11 TDA6107/A Black current loop instability
12 SDA9488X I2C error while communicating
13 Not applicable - - 14 DVD Loader I2C error while communicating
15 TDA9178T/N1 I2C error while communicating
16 TDA9887 I2C error while communicating
17 Not applicable - - 18 Not applicable - - 19 TDA1200 I2C error while communicating
20 TDA1200 I2C error while communicating
(US only)
with 2nd tuner
with the EEPROM
communicating with the PLL
tuner
protection
with the PIP processor
with the DVD Interface module
with LTI module
with PIP_Demodulator
with SSD stereo sound
decoder
with video cosmic in Hercules
IC
2411, 2412, 2413, 6404,
6411, 6412.
7454
1000, 5010
(PIP Module)
A2
A2
F2
7601, 3604, 3605 A5
1000, 5001 A3
7330, 3351, CRT B1
7242 (PIP Module) F1
DVD Interface module DVD Loader
7610 H
7201 F2
7200 A4
7200 A4
E_14480_084.eps
060504
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