Philips 29PT5458/01 User manual

Published by BB 0466 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 14480
©
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.
Colour Television Chassis
L04E
AA
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260504
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 19
Block Diagram Supply and Deflection 20
Testpoint Overview Mono Carrier 21
Block Diagram Video 22
Testpoint Overview CRT, LTI & PIP Panel 23
Block Diagram Audio/Control 24
I2C and Supply Voltage Overview 25
7. Circuit Diagrams and PWB Layouts Diagram PWB
Power Supply (Diagram A1) 26 38-43
Diversity Table for A1 (Power Supply) 27 38-43
Deflection (Diagram A2) 28 38-43
Diversity Table for A2 (Deflection) 29 38-43
Tuner IF (Diagram A3) 30 38-43
Hercules (Diagram A4) 31 38-43
Features & Connectivities (Diagram A5) 32 38-43
Class D - Audio Amplifier (Diagram A6) 33 38-43
Audio Amplifier (Diagram A7) 34 38-43
Rear I/O Scart (Diagram A8) 35 38-43
Front Control (Diagram A9) 36 38-43
DVD Power Supply (Diagram A10)37 38-43
CRT Panel (Diagram B1) 44 46-47
ECO Scavem Panel (Diagram B2) 45 46-47
Side AV + HP Panel (PV2) (Diagram D) 48 49
Side AV + HP Panel (FL-13) (Diagram D) 50 51
Top Control Panel (PV2) (Diagram E) 52 52
Top Control Panel (FL-13) (Diagram E) 53 53
Power Supply PIP Panel (Diagram F1) 54 56-57
Tuner IF and Demodulator PIP (Diagram F2) 55 56-57
Linearity & Panorama Panel (Diagram G) 58 58
LTI/CTI Interface Panel (Diagram H) 59 60
Front Interface Panel (FL-13) (Diagram J) 61 61
Front Interface Panel (PV2) (Diagram J) 62 62
Front Interface and Keyb. Panel (Diagram J) 63 64
8. Alignments 65
9. Circuit Descriptions 73
Abbreviation List 82
IC Data Sheets 84
10 Spare Parts List 86
11 Revision List 90

Technical Specifications, Connections, and Chassis Overview
EN 2 L04E AA1.
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
:DV-CRT-FSQ
:DV-CRT-SF
Screen size :21” (55 cm), 4:3
:24” (61 cm), 16:9
:25” (63 cm), 4:3
:28” (70 cm), 4:3
:29” (72 cm), 4:3
:32” (82 cm), 16:9
Tuning system :PLL
TV Colour systems :PAL B/G, B/H, D/K, I
:SECAM
:SECAM B/G, D/K, L/L'
Video playback :NTSC
Channel selections :100 presets
:UVSH
Aerial input :75 ohm, Coax
:IEC-type
1.1.2 Sound
Sound systems :NICAM Stereo
Maximum power :2x10/ 2x5 W_rms
(int.)
1.1.3 Miscellaneous
Power supply:
- Mains voltage :220 - 240 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 60 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.
1.2.1 Side Connections
Figure 1-1 Side I/O
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
1.2.2 Rear Connections
Figure 1-2 Rear connections
Aerial In
-F-type Coax, 75 ohm D
Audio Out
1-Subwoofer Var. level (optional) kq
Wh - Audio - L 0.5 V_rms / 1 kohm kq
Rd - Audio - R 0.5 V_rms / 1 kohm kq
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S-Video (optional)
Video
L
Audio
R
SIDE I/O
L
S
R
AUDIO
OUT
75 Ohm
SERVICE
CONNECTOR
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EXTERNAL 2
EXTERNAL 1

Technical Specifications, Connections, and Chassis Overview EN 3L04E AA 1.
External 1: RGB/YUV - In and CVBS - In/Out
Figure 1-3 SCART connector
1-Audio - R 0.5 V_rms / 1 kohm k
2-Audio - R 0.5 V_rms / 10 kohm j
3-Audio - L 0.5 V_rms / 1 kohm k
4-Audio - gnd Ground H
5-Blue - gnd Ground H
6-Audio - L 0.5 V_rms / 10 kohm j
7-Blue/U - in 0.7 V_pp / 75 ohm j
8-CVBS - status 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9-Green - gnd Ground H
10 - n.c.
11 - Green/Y - in 0.7 V_pp / 75 ohm j
12 - n.c.
13 - Red - gnd Ground H
14 - FBL - gnd Ground H
15 - Red/V - in 0.7 V_pp / 75 ohm j
16 - Status/FBL 0 - 0.4 V: INT
1 - 3 V: EXT / 75 ohm j
17 - Video Ground H
18 - Video Ground H
19 - CVBS - out 1 V_pp / 75 ohm k
20 - CVBS - in 1 V_pp / 75 ohm j
21 - Shielding Ground H
External 2: CVBS- In and SVHS - In
Figure 1-4 SCART connector
1-Audio - R 0.5 V_rms / 1 kohm k
2-Audio - R 0.5 V_rms / 10 kohm j
3-Audio - L 0.5 V_rms / 1 kohm k
4-Audio - gnd Ground H
5-Blue - gnd Ground H
6-Audio - L 0.5 V_rms / 10 kohm j
7-n.c.
8-CVBS - status 0 - 2 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9-Green - gnd Ground H
10 - n.c.
11 - n.c.
12 - n.c.
13 - Red - gnd Ground H
14 - FBL - gnd Ground H
15 - YC-C - in 0.7 V_pp / 75 ohm j
16 - n.c.
17 - Video Ground H
18 - Video Ground H
19 - CVBS - out 1 V_pp / 75 ohm k
20 - Y/CVBS - in 1 V_pp / 75 ohm j
21 - Shielding Ground H
1.3 Chassis Overview
Figure 1-5 PWB location
21
20
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20
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SIDE AV PANEL +
HEADPHONE
B2
B1
D
H
MONO
CARRIER
A1
E
A2
A3
A4
A5
A9
A10
A8
POWER SUPPLY
J
FRONT INTERFACE PANEL
LINE DEFLECTION
TUNER IF
A6
CLASS D AUDIO AMPLIFIER
HERCULES
FEATURES & CONNECTIVITIES
A7
AUDIO AMPLIFIER
FRONT CONTROL
DVD POWER SUPPLY
REAR I/O CINCH
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TOP CONTROL PANEL
CRT PANEL
LTI/CTI INTERFACE
PANEL
PIP PANEL
GLINEARITY &
PANORAMA PANEL
CRT
ECO
SCAVEM
F2
F1 POWER SUPPLY
TUNER IF &
DEMODULATION

Directions for Use
EN 6 L04E 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
Figure 3-1 Screenshot DFU website (1)
Figure 3-2 Screenshot DFU website (2)
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2
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Mechanical Instructions EN 7L04E AA 4.
4. Mechanical Instructions
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”).
Figure 4-1 Service position Mono Carrier
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
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
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.
A
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Mechanical Instructions
EN 8 L04E 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
Notes:
•PV02 styling: assy is mounted in the front cabinet;
•FL13B styling: assy is mounted in the rear cover.
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 four
fixation clamps.
4.3.5 Linearity Assy/Panel Removal
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
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Service Modes, Error Codes, and Fault Finding EN 9L04E AA 5.
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
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
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: 475.25 MHz.
•Colour system: PAL/SECAM.
•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.
Test point Circuit Diagram
F508, F535, F536, F537, F552, F561, F563,
F573, F664,I513, I518, I519, I524, I531, I533,
I546
Power supply A1
F401, F412, F413, F414, F418, F452, F453,
F455, F456, F458, F459, F460, F461, I408,
I416, I417, I420, I462, I468
Line + Frame
Deflection
A2
F003, F004, I001, I002 Tuner IF A3
F201, F203, F205, F206 Hercules A4
F240, F241, F242 Features &
Connectivities
A5
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
SW Clusters SW Version First Mask Remarks
L4LEF1 L04EF11.0 TDA12020H1/N1B11 Western Europe
TDA12021H1/N1B11 Radio 4:3 set only.
L4LEF2 L04EF21.0 TDA12020H1/N1B11 Eastern Europe
TDA12021H1/N1B11 Radio 4:3 set only.
L4LEF3 L04EF31.0 TDA12020H1/N1B11 Western Europe
TDA12021H1/N1B11 PIP
L4LEF4 L04EF41.0 TDA12020H1/N1B11 Eastern Europe
TDA12021H1/N1B11 PIP
L4LEF5 L04EF51.0 TDA12020H1/N1B11 Western Europe
TDA12021H1/N1B11 Radio & PIP.
L4LEF6 L04EF61.0 TDA12020H1/N1B11 Eastern Europe
TDA12021H1/N1B11 Radio & PIP.
L4LEF7 L04EF71.0 TDA12020H1/N1B11 ICON UI

Service Modes, Error Codes, and Fault Finding
EN 10 L04E AA5.
Figure 5-1 SDM menu
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.
Figure 5-2 SAM menu
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.
00028 L04EF30.10 SDM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
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00028 L04EF30.10 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. AKB On
. Tuner
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on
. 2 Tuner PIP*
*optional

Service Modes, Error Codes, and Fault Finding EN 11L04E AA 5.
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:
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.
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.
1 00028 L04EF30.10 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 STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50
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Service Modes, Error Codes, and Fault Finding
EN 12 L04E AA5.
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 on the European DST (service remote control),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:
•ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.
•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 SearchMan electronic manual of the defective chassis,
schematics and PWBs 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 (defective) product.
The ComPair interface box is connected to the PC via a serial
or RS232 cable.
In this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector.
The ComPair faultfinding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
•Automatic (by communication with the television):
ComPair can automatically read out 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 micro controller of
the television. In this way, it is possible for ComPair to
communicate (read and write) to devices on the I2C
busses of the TV-set.
•Manually (by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the
television is working correctly and only to a certain extend.
When this is not the case, ComPair will guide you through
the faultfinding tree by asking you questions (e.g. Does the
screen give a picture? Click on the correct answer: YES /

Service Modes, Error Codes, and Fault Finding EN 13L04E AA 5.
NO) and showing you examples (e.g. Measure test-point I7
and click on the correct waveform you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next
step in the faultfinding process.
By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.
Beside fault finding, ComPair provides some additional
features like:
•Up- or downloading of pre-sets.
•Managing of pre-set lists.
•Emulation of the Dealer Service Tool (DST).
•If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of
the 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
PWB with a highlighted capacitor C2568.
–Click on the 'Schematic' hyperlink to automatically
show the position of the highlighted capacitor.
5.4.3 How To Connect ComPair
1. First, install the ComPair Browser software (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 with 'POWER 9V DC') of the ComPair interface.
4. Switch the ComPair interface “off”.
5. Switch the television set “off” with the mains switch.
6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface
(marked with 'I2C') and the ComPair (or Service) connector
at the rear side of the TV (for its location see figure 8-1 in
chapter “Alignments”).
7. Plug the mains adapter in a mains outlet, and switch the
interface “on”. The green and red LEDs light up together.
The red LED extinguishes after approx. 1 second while the
green LED remains lit.
8. Start the ComPair program and read the 'Introduction'
chapter.
Figure 5-4 ComPair 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.
•Transformer UK: 4822 727 21633.
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
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.
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).
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Service Modes, Error Codes, and Fault Finding
EN 14 L04E AA5.
Table 5-3 Error codes overview
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.
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.
Error Device Error description Check item Diagram
0Not applicable No Error
1Not applicable X-Ray / over-voltage protection (US only) 2411, 2412, 2413, 6404, 6411,
6412.
A2
2Not applicable High beam (BCI) protection 3404, 7405 A2
3Not applicable Vertical guard protection 3466, 7451, 7452, 7453, 7454 A2
4Tuner
UA1316/A
I2C error while communicating with 2nd tuner 1000, 5010 (PIP Module) F2
5Not applicable +5v protection 7604, 7605 A5
6I2C bus General I2C error 7200, 3207, 3214 A4
7Not applicable - - -
8Not applicable - - -
924C16 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

Service Modes, Error Codes, and Fault Finding EN 15L04E AA 5.
Table 5-4 NVM default values 5.8.2 Power Supply
Set Not Working
Figure 5-5 Fault finding tree “Set not working”
Set Does Not Start Up
Figure 5-6 Fault finding tree “Set does not start up”
Address
(dec)
Value
(hex)
EW (EW width) 19 25
PW (EW parabola width) 20 0A
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 1C
VSH (Vertical Shift) 30 1A
VX (Vertical Zoom) 31 19
VSL (Vertical scroll) 32 20
VL (Vertical linearity) 33 20
AGC (AGC Takeover) 36 1E
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)
40 0A
COR (Phase 1 time constant,
Video Dependant Coring,
Ratio & White stretch)
41 0F
60 Hz Vertical amplitude 42 40
YD & CL 43 2
RGB amplitude for full teletext mode 46 0C
NVM_TABLE_VERSION 60 26
OPTION_TABLE_VERSION 61 11
CVI_BLOR 62 1E
CVI_BLOG 63 1C
TXT Brightness 64 0F
V60 offset (60Hz Vertical Amplitude) 66 FE
FOAB, CHSE 139 3
SPR, WS 140 0
VMA, SVM 141 31
NVM_SOC_SMD 142 33
CCC_Preset_Gain_Red 143 1F
CCC_Preset_Gain_Green 144 1F
CCC_Preset_Gain_Blue 145 1F
NVM_FMWS 149 2
NVM_ASD_SC1_THR 150 10
NVM_CRYSTAL_ALIGN 208 4F
Last Brightness (VID PP others) 264 34
Last Color (VID PP others) 265 2C
Last Contrast (VID PP others) 266 4B
Last Sharpness (VID PP others) 267 37
Last Hue (VID PP others) 268 32
Last Colour Temperature (VID PP others) 269 0D
White-D Cool Red 294 FD
White-D Cool Blue 296 8
White-D Normal Red 297 22
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
Not Ok
Check fusible
resistor 3510 &
circuit before it
Check DC
voltage at
2505/2507
Ok
Ok
Check
fusible
resistor 3532
Check
7512
Check IC7511 &
IC7531
Set able to
start-up
Check other
fusible resistor
and capacitor in
the circuit
No
End
Yes
Not Ok
Ok
Check Power
Supply Mains
Switch
Bridge Rectifier
circuit 6500
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Set Unable
to Start
Fuse Blown? Change
Fuse
Yes
Check
voltage
across 2552
Is Vbatt
approximately
140V
Check
voltage 2562
&2563
Yes
16V
No Check Power
Supply circuit
Check 3V
across 2535
Check 6V
across 2535
Software
loaded? No
Yes Load
Software
Yes
Yes
Set able to
Start
Yes
Yes
End
Check Line
Transistor 7405
No
No
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Service Modes, Error Codes, and Fault Finding
EN 16 L04E AA5.
5.8.3 Deflection
One Thin Vertical Line
Quick check:
•Set in protection mode.
•LED blinking with error “3”.
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”.
Figure 5-8 Fault finding tree “One thin horizontal line”
Blank Screen
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.
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.
One Thin Vertical Line
LED Blinking
Check Horizontal
Deflection
Circuitry
Is VBE between
200mV to 30mV & VCB
approximately 500mV
Check
Line Transistor
7405
Yes
Check all
connection and
peripheral at
Deflection Circuit in
place
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Replace transistor
Check transistor
(7451, 7523, 7543) at
Vertical Deflection Circuitry
Check Vertical
Deflection Circuit
Replace transistor
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One Horizontal
Thin Line
LED Blinking
Check all connection
and peripheral at
Deflection Circuit
in place
Blank Screen
Check Vg2
(fine tune)
Check Beam Current Limit
(voltage is 1.8V-2V when
brightness and contrast is
set to the maximum
Not Ok
Check heater voltage
(measure pin 9&10
at the CRT socket)
Check video supply
(2457) is approximately
180V
Ok
Ok
Check deflection
circuit
Not Ok
Ok
Picture
appears?
Picture
appears?
End
Ok
Picture not appearing
Ok
Not Ok
Picture not appearing
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Service Modes, Error Codes, and Fault Finding EN 17L04E AA 5.
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
Figure 5-10 Fault finding tree “No picture, no sound”
Picture Ok, No Sound
Figure 5-11 Fault finding tree “Picture ok, no sound”
Unable To Perform Tuning
Figure 5-12 Fault finding tree “Unable to perform tuning”
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.
Check AGC
Voltage, pin 1
of tuner
No Picture,
No Sound,
Raster Ok
AGC voltage
changes with
different signal
strength
Check AGC
circuit section
No
Check tuning
supply voltage,
pin 9 of tuner
Yes
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Check
VTSupply
Section
>30V & <35V
Check supply
voltage, pin 7 of
tuner
5V Check Power
Supply
No
Check Tuner
pin 4 & 5
I2C Bus
Yes
Ok
Replace Tuner
Check other
functional area
No
Yes
No
Picture Ok,
No Sound
Check IF output of
tuner, pin 11
CVBS
present?
Refer to fig.
"Power Supply:
Set not working"
No
Check SAW filter output
(pin 4&5)
EU/AP/CH (QSS)- 1001
NA/LA/AP INT - 1002
Yes
Output Ok? Replace SAW
filter
No
Check other
functional area
Yes
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Enter SDM
check optionbyte 1
Check if tuner
Supply Voltage
pin 7
Enter SDM and change
to the appropriate byte
5V
Check Tuner
Supply Voltage
Yes
33V
Check Power
Supply
No
Check I2C at pin
4 & 5 and tuner
Check other
functional area
Ok
I2C
Check I2C
circuit
Not Ok
Tuner
Replace
Tuner
Not Ok
Incorrect
Correct
Yes
No
Unable to
perform tuning
Not Ok
Not Ok
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Service Modes, Error Codes, and Fault Finding
EN 18 L04E AA5.
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
5.8.8 Audio Processing
No Sound
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.
Description Address
(dec)
Address
(hex)
Value
(hex)
SPR, WS 140 8C 00
VMA, SVM 141 8D 31
NVM_SOC_SMD 142 8E 33
Picture Ok,
No Sound
Tuner IF Ok Check Tuner/IFNot Ok
Check AUDOUTLSL &
AUDOUTLSR pin at
Hercules
Ok
Check Audio
Amplifier
Check Hercules IC
Check Audio
Power Supply
Check Audio
Amplifier Circuit
and loud speaker
Check Power
Supply
Replace Audio
Amplifier
Check NVM
Not Ok
Not Ok
Not Ok
Ok
Ok
Ok
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Block Diagrams, Testpoint Overviews, and Waveforms 19L04E AA 6.
6. Block Diagrams, Testpoint Overviews, and Waveforms
Wiring Diagram
E_14480_080.eps
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1214
SIDE
A/V PANEL +
HEADPHONE
D
PIP
F
CRT PANEL
(component view)
B
TOP CONTROL PANEL
E
A
LINEARITY&
PANORAMA
HEADPHONE
RIGHT (RED)
LEFT (WHITE)
CVBS (YELLOW)
LTI/CTI
INTERFACE
H
H
1010
2P
1462
1461
2P
1464
G
CRT PANEL
B
MONO
CARRIER
3P
3P
RED
BLACK
RIGHT
SPEAKER
BLACK
RED
LEFT
SPEAKER
to
SUB
WOOFER
(OPTIONAL)
BLUE
YELLOW
ORANGE
RED
EHT
CRT
FRAME
ROTATION
COIL
AQUADAG
DEGAUSSING COIL
SCAVEM
COIL
CRT
16:9
1211
1212
1693
FRONT INTERFACE
J
MAINS
CORD
MAINS
SWITCH
2P
2P
6P
3P
7P
5P
12P
5P
1204
6P
1693
7P
1207
1005
7P
1206
7P
7P
1252
7P 4P
1206
1215
1216
1221
2P
1451
3P
1682
3P
1279
2P 2P
1212
9P
TUNER
91
1212
9P91
1219
1219
1212 1401
5P
1254
4P
1206
4P
1214
4P 1220
5P
NC
NC
4P
1278
1280
5P
1351 3P
1361
3P
1381
1504 1505
1404
5401
2P
LOT
TUNER
(track view)
12P
1352
1332
CRT
SOCKET
LTI/
CTI
3P
4P 5P 15
COMPAIR
CONNECTOR

20L04E AA 6.
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply and Deflection
POWER SUPPLY 1504
43
2
9
8
4
17
18
13
14
5
6
3
2
1
3507
E_14480_081.eps
060504
F508
I519
3575
7454
3576
6511
7514
2511
A1
HERCULES
A4
LINE + FRAME DEFLECTION
LINE
E/W
FRAME
STANDBY
SUPPLY
A2
ONLY FOR:
28"WSRF LA/NA
32" WSRF LA/NA
28" WS-SF LA
FRONT INTERFACE
J
Degaussing
Coil
t
1503
5520
7541
7511
TEA1506T
DRAIN
DRIVER
SENSE
DEMAG
CONTROL
IC
CTRL
ENERGIZING
CIRCUIT
(optional)
AC
DC
6500
5500 :
5502
1506
MAINS
SWITCH
(not USA)
10
11
1
2
4
3
1500
T4E
2505
1211 1231
MAINS
SWITCH
(not USA)
V_DG
+3V3
F552
I516
I513 F563
F561
F537
F536
I533
I531
F564
I573
F453
F460
F412
F414
F418
I417
F461
F401
F452
F455
5562 6563
6571
1543 -Vaudio
+Vaudio
+6VA
5551 5552
6551
5561 6562
Vbatt
A4
A4
Stdby_Con
7571
REFERENCE
CIRCUIT
7573
STANDBY
CIRCUIT
7515
TCET1103
2
Vcc
3513
3532
3514
3516
7512
14
11
9
3517
7
D
S
G
A2
A5
I511
56
97
107
106
63
108
62
112 113 116
POWER-DOWN
EHTinfo
EHTo
INTF_Y GREEN_IN
A5
A5
HD
SANDCASTLE
HD_PIP
TO RGB
PROC.
VDRA
VDRB
A2 A2
EHTinfo
Vguard
HD
EHTb
I2SD/1
EHTinfo
EHTb
BCL
HDRIVE
EW_DRIVE
VIDEO/SUPPLY
+9V
FILAMENT
VIDEO/SUPPLY
FILAMENT
7200-H
(SYNC)
VIDEO
IDENT
PHI 1
DETECTOR
1505
1505
1212
1
2
1
2
R.G.B.
BLANKING
SAND-
CASTLE
GENERATOR
Vbatt
+Vbatt
Vbatt
VT_SUPPLY
+8V
+9V
-12V
+8V
+6VA
-9V
-12V
+9V
7405
BU4508DX
5402
LINE
OUTPUT
CIRCUIT
+
E/W
CORR.
7463
7404
7452
7451
7408
7455 7456
7453
7411
7406
7484
7410
1463
1404
1
2
HOR.
DEFL.
COIL
1491
1
2
VER.
DEFL.
COIL
5445
3
1
FOCUS
3291
VG2
EHT TO
CRT
1401
5
4
3
2
1
10
6
B1
TO 1351
CRT
B1
A1
A4
A4
Vguard
FRAME_FB
A4
A4
6453
6483 6484
6459
6452
6481
7
8
9
5
6456
6454
6455
6486
1462
1
2
3
TO 1221
CONNECTIONS
A5
OR
3518
4
5
11
1
2
6532
7532
6533
5531
7531
TEA1620
DRAIN
SOURCE
CONTROL
IC
AUX
8
9
+3V
+6V
Vaux
+6VA
+6VA
6564
6536
66537
POWER-DOWN
HOT GROUND COLD GROUND
6
REG
3
Vcc
3538
12
14
3534
3565
3530
6512
3519
2534
2564
35321532
1A
10 6535
2536
2535
5537
6676
6565 6566 7561
7536
7535
2x
2240
D S
G
HORIZONTAL
OSC.
PHI 2
DETECTOR
HORIZONTAL
OUTPUT
VERTICAL
SYNC
SEPARATOR
VERTICAL
DIVIDER
VERTICAL
SAW-
THOOTH
VERTICAL
OUTPUT
+
GEOMETRY
E/W
+
GEOMETRY
MAIN
SYNC
SEPARATOR
VERTICAL
GUARD
DETECTOR
3232
X-RAY
PROTECTION
7207
Vbatt
3410
3471
3481
6401
3411
3497
3420 3440
3498
3465
3463
3442 3451
7401 : 7403
7480 : 7483
2403
FRAME_FB
1454
1452
EHTb
+
EHTinfo
+
BCL
PROC.
3458
3484
3485
3457
3455
2456
3466
3462
3474
3461
3401
2474
2475
1461
4
1
1404
4
1
HOR.
DEFL.
COIL
ACTIVATING
CIRCUIT
2466
7462
7460
2464
2467
LINEARITY AND
PANORAMA
CORRECTION
OR
F402
I433
F458
I548
F459
SUPPLY
SUPPLY AND DEFLECTION
DEFLECTION
For IDTV only
MAIN
SUPPLY
3531
6573
3571
SEE BLOCK DIAGRAM VIDEO
A5
VD
SEE BLOCK DIAGRAM VIDEO
LINEARITY & PANORAMA
G
F401 130V / div DC
F402 32V8 / div DC
F452 -13V4 / div DC
F453 190V8 / div DC
5V / div DC
20 µ s / div
1V / div DC
5ms / div
500mV / div DC
5ms / div
500mV / div DC
5ms / div
5V / div DC
20 µ s / div
20 V / div DC
5ms / div
2V / div DC
20 µ s / div
200V / div DC
20 µ s / div
F418
F455 F458 F459
F412 F414
F460 F461
F552 130V / div DC
F561 15V9 / div DC
100V / div DC
5 µ s / div
2V / div DC
5 µ s / div
100V / div DC
5 µ s / div
100V / div DC
5 µ s / div
F508 268V / div DC
F573 0V (N.A.)
F564 9V4 / div DC
F537 0V (N.A.)
F511 15V5 / div DC
F531 2V7 / div DC
I513 I516 I519 I533
500mV / div DC
20 µ s / div
10V / div DC
20 µ s / div
10V / div DC
20 µ s / div
5V / div DC
5ms / div
10V / div DC
5ms / div
20V / div DC
20 µ s / div
I416 I417 I468I423 I433 I462

22L04E AA 6.
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Video
E_14480_085.eps
280504
HERCULES
A4
HERCULES
A4
A4
CRT
B1
A5
SCAVEM
B2
A2
7200-E (RGB PROCESSING + CATHODE CALIBRATION)
CONN.
A5
A5
LTI/CTI
H
PIP-PROC.
F1
1212
1206
1212
12061215
4
6
8
INTF_Y/GREEN_IN
INTF_Pb/BLUE_IN
INTF_Pr/RED_IN
9
10
1
3
INTF_FBL
SANDCASTLE
E
D
6
4
6
8
9
10
1
3
1
3
6
INTF_BBL
Y_2
YOUT
UOUT
VOUT
SC
YIN
UIN
VIN
Pb_2
Pr_2
19
17
16
1
165
INTF_FBL
INTF_PrRED_OUT
INTF_Y/GREEN_OUT
INTF_PbBLUE_OUT
INTF_FBL
SDA
SCL
SANDCASTLE
SDA
SCL
SDA
SCL
INTF_BBL
1241
1
2
7630
7635
13311204
1
42
43
44
2
3
5
3334
3336
3332
3244
NC
3243
1381
1
2
ROTATION
COIL
(OPTIONAL)
1351
to 1401
BC_INFO
SVM
ROT
B
G
R
F341
F333
F331
F338
F339
F241
F240
F242
4
7
6
1
2
3
5
4
7
6
7330
7610
TDA9178T
LTI/C+I
PROC.
7611
TDA8601T
7242
SDA9488X
PULSE FORMER
3
1
2
7
5
9
8
B
G
R
EHT-b
DEFLECTION
+200VA
ROT
+200VA
+200V
VSVM
FILAMENT
DINT
ROTATION
OUTPUT
3351
3226
3227
3228
2351
123 4 5
B
G
R
CRT
25kV
FOCUS
DEFLECTION
FROM DEFLECTION
EHT
VG2
11
6
8
10 9 5 7 1
1332 AQUADAG
A2
A2 A4
F332
1361
1
2
SCAVEM
COIL
(OPTIONAL)
SVM
59
FILAMENT
SCAVEM
OUTPUT
VSVM
5352
FILAMENT
YUV
Y
Pr
Pb
DAC
DIGITAL SIGNAL PROC.
- 4:3 LINEAR/NON-LINEAR SCALING
- DOUBLE WINDOW PROC.
ADC
YUV
TO
DVD
DVD
TO
YUV
RGB
RGB
TO
DVD
FAST
RGB
SWITCH
RGB2/
RGB3
SELECTION
(RGB/YPrPb/YUV
INPUT SWITCHING)
DVD
TO
DVD
YPrPb2/
YPrPb3
SELECTION
DVD
6
8
9
12
2
6
11
10
13
1212
1
2
3
1216
1
1214
1
3
5
1212
5
1
3
6
18
17
16
28
24
26
VD
INTF_CVBS_OUT
INTF_CVBS_IN
INTF_CVBS_IN (NC)
INTF_CVBS_OUT
SEE BLOCK DIAGRAM DEFLECTION
VD
HD-PIP
CVBS1_PIP
HD_PIP
4
3
15
11 12 13 6 5
1214
1
3
1220
1
2
R
G
B
3
1219
1
4
2
31212
1
2
3
INTF_Pr/RED_IN
55
INTF_Y_OUT
54
INTF_U-OUT
58
INTF_Pb/BLUE_IN
57
INTF_Y/GREE_IN
INTF_CVBS_OUT
65
49
SC1_RED_IN
50
SC1_GREEN_IN
51
SC1_BLUE_IN
53
INTF_V-OUT
3-STATE
3
73-STATE
4
83-STATE
15
14 3-STATE
DAC
R
G
B
RGB
MATRIX
Y
UV
MULTI
STANDARD
DECODING
1219
INPUT
SWITCH
R
G
B
SYNC.
PROC.
INTF_FBL
NC
INTF_Y_OUT
INTF_U_OUT
INTF_V_OUT
INTF_Y_OUT
INTF_U_OUT
INTF_V_OUT
INTF_Y
INTF_Pb
INTF_Pr
45
46
64
FROM µP PART
R_OSD G_OSD B_OSD FBL
BEAM
CURRENT
LIM.
IBLACK
ROUT
GOUT
BOUT
SVM
ROT
YUV
RGB
DVD
SELECTION
LOGIC
Yint
Uint
Vint
YintYint
CHROMA/CVBS
C
CVBS/Y
Uint
Vint
INSSW352
7200-C
7200-B (CVBS I/O + FILTERS + COLOUR DECODING)
7200-A (IF)
PAL, NTSC
SECAM
DECODER
COMB
FILTER
&TRAP
SWITCH
VIDEO
IDENT
70
77
74
71
78
SC2_CHROMA_IN
CVBS1
SIDE_Y/CVBS_IN
SC2_Y/CVBS_IN
81
SIDE_CHROMA_IN
INPUT
SWITCH
OUTPUT
SWITCH
R_Y
G_Y
B_Y
SCAVEM
PROC.
7200-D (YUV PROCESSING)
Y
Pr
Pb
15 19
17
I002
I001
F002
F002
F004
SDA
SCL
50019003
FM-RADIO
TUNER
+
TV TUNER
3001
3000
6001
BZX79-C33
TUNER IF
F2 PIP TUNER IF MULTISTANDARDVIDEO DEMODULATION
A8 REAR I/O SCART (VIDEO PART)
A5
DSIDE AV A5 CONNECTION
A4
A4
A2
1000 6 7 98
1
11
SSIF
VIF_1
VIF_2
SIF1
SIF2
RF_AGC
+5VS
VT_SUPPLY
VT
AGC
5
SEL-LLPIM
A4
4
IF
FM 10
SDA
3207
7001
7003
FILTER
SELECTION
1002
1003
1004
ERR
10
ERR
16 ERR 12
ERR
15
TV
FM
9002
+5V
105
104
98
100
99
PLL
PLL
FM/QSS
AM
VCO
VIDEO
DEMOD
SOUND
TRAP
TUNER IF
AGC
VIDEO
IF
PHASE
DISC
7201
TDA9887
AUDIO IF
QSS/AM
SOUND
MIXER
AM
SOUND
DET.
TO
AUDIO
PART
See block
diagram
AUDIO
SWITCH 86
1
5
4
32
SVHS
Y
C
SW_SC2_CVBS
SW_SC2_CVBS
SIDE_CHROMA_IN
SIDE_Y/CVBS_IN
VIDEO
IN
1207
7
6
5
1252
7
6
5
PIP
+
TV TUNER
1000
UV1316/A 79
1
11
+5VA
VST
AGC
54
IF
ERR
4
3002 3001
7001
5001
SDA SDL
ADC
PIP
VIF_1
VIF_2
1002
1003 1
2
TUNER_AGC
SEL_P_N
14
3
910
SCL
3206
11
VIDEO
IF
VIDEO
PLL
DEM.
AGC
AGC
ADJ.
TV
1201
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
CLAMP
SC1_FBL
SC1_FBL
SC1_R/G/B
TO
AUDIO
PART
CATHODE
CALIBRATION
BRIGHTNESS
+
PEAK WHITE
LIM.
OSD
INSERTION
OUTPUT
STAGE
CLAMP
+
MUTE
BLUE
STRETCH
&
CONTRAST
RGB
ADDER
MATRIXSATURATION
TINT CONTROL
SKINTONE
WHITE/BLACK
STRETCH
GAMMA COR.
PEAKING
1351
BCL
7308
7202
VIDEO
SSIF
7606
7607
A4
A4
A5
5
9
7
8
CONN.
SEE BLOCK DIAGRAM CONTROL
A4
SEE BLOCK DIAGRAM
DEFLECTION
SEE BLOCK DIAGRAM
DEFLECTION
A4
A4
SW_SC2_CVBS
SC1_CVBS_OUT
SC1_CVBS_IN
SEE BLOCK DIAGRAM AUDIO
SC1-FBL
SC1-STATUS
SC2-CVBS-OUT
SC1-CVBS-OUT
SC1-CVBS-IN
SC1-R/G/B
SC1-RED-IN
SC1-GREEN-IN
SC1-BLUE-IN
SCART 1
SC2-STATUS/ITV_MSG
20
16
8
21
19
15
11
7
7701
SC2-CHROMA-IN
SC2-CHROMA-IN
SC2-CVBS-OUT
SCART 2
SC2-Y/CVBS-IN
20
16
8
21
19
15
11
7
F224
F216
F218
F217
F225
F226
F201 2V / div DC
F203 2V / div DC
500mV
/ div DC
10ms / div
1V / div DC
20 µ s / div
F205 F206
500mV / div DC
20 µ s / div
500mV / div DC
20 µ s / div
500mV / div DC
20 µ s / div
F240 F241 F242
500mV / div DC
20 µ s / div
500mV / div DC
20 µ s / div
500mV / div DC
20 µ s / div
F331 F332 F333
        
   
      
      
      
      
      
      
      
      
  

24L04E AA 6.
Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Audio/Control
E_14480_087.eps
280504
HERCULES
A4
A3
REAR I/O SCART
A8
A5
SIDE AV
D
AUDIO AMPLIFIER
A7
7200-A (IF)
I002
I001
F002
F952
F955
I951
I952
F004
SDA
SCL
50019003
FM-RADIO
TUNER
+
TV TUNER
3001
3000
6001
BZX79-C33
TUNER IF
A4
A4
A2
1000 6, 7 9
1
2
11
SSIF
VIF_1
VIF_2
SIF1
SIF2
RF
+5VS
VT_SUPPLY
VT
AGC
5
SEL-LLPIM
A4
VOL_MUTE
A4
4
IF
FM 10
7001
7003
FILTER
SELECTION
1002
1003
1004
ERR
10
TV
FM
9002
+5V
24
25
31
29
30
PLL
PLL
FM/QSS
AM
VCO
VIDEO
DEMOD
TUNER IF
AGC
FM
DEM.
AMPLI
+
MUTE
LS
OUTPUT
AUDIO
SOURCE
SELECTION
DIGITAL
SOUND
PROCESSING
VIDEO
IF
PHASE
DISC
AUDIO IF
QSS/AM
SOUND
MIXER
AM
SOUND
DET.
A8
REAR I/O SCART
SC1_L_IN
SC1_R_IN
SC2_L_IN
INTF_R_IN 75
96
93
92
INTF_L_IN 76
SC2_R_IN 72
SC2_L_IN 73
SIDE_R_IN 79
SIDE_L_IN 80
SC1_R_IN 94
SC1_L_IN 95
SC2_R_IN
L
AUDIO
CONTROL
To VIDEO PART
see block diagram
VIDEO
D
SIDE AV
A5
CONNECTIVITIES
SIDE_L_IN
SIDE_R_IN
1207
3
1
1252
3
1
R
12781254
1
2
5
2
FM/QSS
SSIF
AM
7200-F (AUDIO)
ADC DAC
DIGITAL PART
DIGITAL
STEREO
SOUND
DECODER
AUDIO
SELECT
67
66
69
68
SCART
CINCH
OUTPUT
AUDIO
SELECT
MONITOR
OUT
L
R
MUTING
7703 7702
54
21
7705
L 8 Ohm/15W
R 8 Ohm/15W
1281
7990
TDA2616Q
5
2
L 8 Ohm/15W
R 8 Ohm/15W
1280
1
2
OR
4
7
6
1
9
5
V AUDIO+1
-V AUDIO
2
7991
VOLUME
+
MUTE
MAIN_OUTL
MAIN_OUTR
Stby_Con
A4 MUTE
POWER_DOWN
A4
HP
OUTPUT
1693
3
4
5
1010
2
F692
OR
ERR
19
FRONT INTERFACE
(PARTLY)
J1 FRONT CONTROL
A9
TOP CONTROL
E
6692
TSOP1836
6693
+3.3V
6691
ON/OFF
USA only
6
LOCAL
KEYBOARD
LOCAL
KEYBOARD
+
1693
3
4
5
6
OR
ON/OFF
(USA only)
IR
LED
KEYBOARD
LIGHT_SENSOR
6692
TSOP1836
+3.3V
6691
IR1
6693
LED
KEYBOARD
LIGHT_SENSOR
IR
LED
KEYBOARD
LIGHT_SENSOR
N.C.
MAIN_OUTR
MAIN_OUTL
SC1_R_OUT
SC1_L_OUT
SC2_R_OUT
SC2_L_OUT
1228
1
2
3
SUBWOOFER
(optional)
SPDIF
(optional)
3764 3761
7991
7992
MUTING
7993, 7994
SCART 1
SCART 2
1
3
2
6
1
3
2
6
3757
3762
SCART 1
SCART 2
1
3
2
6
1
3
2
6
1682
2
22
20
21
KEY_PROTN 9
IR 32
LED 30
LIGHT-SENSOR 14
A1 POWER_DOWN 31
36043605
see
IIC
DIAGRAM
HERCULES (CONTROL)
A4 FEATURES A5
+3.3V
7
8
6
5
A7
VOL_MUTE
18
15 A1
A7
A3
Stdby_Con
B2
ROT
17
SEL_LLPIM
16
118
119
+3.3V
+3.3V
7200-G (Control)
TDA12001H1 EEPROM
(NVM)
I/O PORTS
+
IIC BUS
TRANSCEIVER
+
PWM
OUTPUTS
+
CPU
+
TELETEXT
(close caption)
+
ROM
RAM
32043202
3207
3214
see
IIC
DIAGRAM
(FOR LTI
AND PIP)
ERR
9
ERR
20
SDA
WRITE_PROTECT
SCL
2
1
32803279 3266
3265
E
D
7205
1205
24MHz
G
A5
I2SD/1
23
A5
Reset__5V
24
A5
SEL_SC2_INTF
25
9275
9252 SDM
SERVICE JUMPER
F003 0V (N.A.)
200mV / div AC
10ms / div
1V / div DC
20µs/ div 1V / div DC
20µs/ div
F004 I001 I002
F201 2V / div DC
F203 2V / div DC
500mV / div DC
10ms / div
1V / div DC
20µs/ div
F205 F206
50mV / div AC
2ms / div
2V / div DC
2ms / div
50mV / div AC
2ms / div
500mV / div AC
2ms / div
500mV / div AC
2ms / div
I952I951 F952 F955
F692