1. Technical Specifications, Connections
and Chassis Overview2
2. Safety & Maintenance Instructions,
Warnings and Notes4
3. Directions for Use6
4. Mechanical Instructions14
5. Service Modes, Error Codes and Faultfinding15
6. Block Diagram, I2C Bus Interconnection Diagram
and Supply Voltage Diagram
Block Diagram17
2
I
C-Bus Interconnection Diagram18
Supply Voltage Diagram19
7. Electrical Diagrams and PWB’sDiagram CBA
Main Panel: Tuner(Diagram A1) 2026-27
Main Panel: Video Processor(Diagram A2) 2026-27
Main Panel: SCART(Diagram A3) 2126-27
Main Panel: EEPROM(Diagram A4) 2126-27
Main Panel: Power Supply(Diagram A5) 2226-27
Main Panel: Horizontal(Diagram A6) 2326-27
Main Panel: u-Controller(Diagram A7) 2126-27
Main Panel: Audio Amplifier(Diagram A8) 2426-27
Main Panel: Vertical(Diagram A9) 2426-27
Main Panel: Out(Diagram A10)2526-27
Main Panel: Keyboard Panel(Diagram A11)2526-27
CRT Panel(Diagram B) 2828
RC Panel(Diagram C) 2929
Front AV Module(Diagram D) 2929
Line Out Panel(Diagram E) 3030
8. Alignments31
9. Circuit Description 34
Abbreviation List (Not Applicable yet)34
IC Data Sheets34
Copyright 2002 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.
Published by LM 0271 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12970
Page 2
EN 2TDVD1.1E1.
Technical Specifications, Connection Facilities, and Chassis Overview
1.Technical Specifications, Connection Facilities, and Chassis
Overview
1.1Technical Specifications
1.1.1Reception
Tuning System: PLL
Colour Systems: PAL
: SECAM
:NTSC
Sound System: Mono
A/V Connections: SCART
: FRONT AV
Channel Selections: Air
: Cable
IF Frequency: B/G, D/K, L: 38.9 MHz
: L': 33.4 MHz
: I: 39.5 MHz
Aerial Input: 75 Ohm
1.1.2DVD module
Disc formats: CD (R/RW)
:CVD
: (S) VCD
:DVCD
:DVD (+R/+RW)
Rotational speed: 4x CD
:2x DVD
Data transfer rate: 2760 kB/s for DVD
: 688 kB/s for VCD
Avg. access time: 250 ms typical
Data buffer capacity: 512 Kbytes
1.1.3Miscellaneous
Audio Output (RMS): 2 x 2.5 W
Mains Voltage: 220 - 240 V (± 10 %)
Mains Frequency: 50 / 60 Hz (± 5 %)
Power Consumption: 50 W
Standby Power Consumption: 4 W
9 - F/R (SCK) Front Right Audio
10-A-GND Audio Ground
11-F/L (BCK) Front Left Audio
12-MUTE (LRCK) Mute for Audio
13-S/PDIF Digital Audio
14-D-GND Digital Ground
15-CVBS 1 Vpp / 75 Ohm
16-V-GND Video Ground
17-Y 1 Vpp / 75 Ohm
18-V-GND Video Ground
19-C 0.3 Vpp / 75 Ohm
20-V-GND Video Ground
21-G/Y 0.7 Vpp / 75 Ohm
22-B/Cb 0.7 Vpp / 75 Ohm
23-R/Cr 0.7 Vpp / 75 Ohm
24-V-GND Video Ground
25-VID_S/W Video switching
26-TV_S/W TV switching
DVD ENGINE
RC PANEL
C
FONT AV PANEL
D
LINE OUT PANEL
E
Figure 1-4 PWB location
MAIN
CHASSIS
PANEL
TUNER
VIDEO PROCESSOR
SCART
EEPROM
POWER SUPPLY
HORIZONTAL
µ-CONTROLLER
AUDIO AMPLIFIER
VERTICAL
AV INTERFACE CONN.
KEYBOARD
CL 26532120_003.eps
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
061202
Page 4
EN 4TDVD1.1E2.
Safety and Maintenance Instructions, Warnings, and Notes
2.Safety and Maintenance Instructions, Warnings, and Notes
2.1S af et y In st ruc tions
Safety regulations require that during a repair:
•Due to the chassis concept, a part of the circuitry is 'hot'.
Therefore, connect the set to the mains via an isolation
transformer.
•Replace safety components, indicated by the symbol
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.
,
Figure 2-1
Note: Use of controls or adjustments or performance of
procedure other than those specified herein, may result in
hazardous radiation exposure. Avoid direct exposure to beam.
2.2Maintenance 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.
2.3Warnings
2.3.1General
•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. 2-2, to
discharge the picture tube. Use a high voltage probe and a
multi-meter (position V
reading is 0 V (after approx. 30 s).
V
). Discharge until the meter
DC
2.1.1Laser Safety
This unit employs a laser. Only qualified service personnel may
remove the cover, or attempt to service this device (due to
possible eye injury).
Laser Device Unit
Type: Semiconductor laser
GaAlAs
Wavelength: 650 nm (DVD)
: 780 nm (VCD/CD)
Output Power: 20 mW (DVD+RW
writing)
: 0.8 mW (DVD
reading)
: 0.3 mW (VCD/CD
reading)
Beam divergence: 60 degree
CL96532156_040.eps
140501
Figure 2-2 Discharge picture tube
•All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD, symbol 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.
Page 5
Safety and Maintenance Instructions, Warnings, and Notes
•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.
2.3.2Laser
•The use of optical instruments with this product, will
increase eye hazard.
•Only qualified service personnel may remove the cover or
attempt to service this device, due to possible eye injury.
•Repair handling should take place as much as possible
with a disc loaded inside the player.
•Text below is placed inside the unit, on the laser cover
shield:
CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÅLING
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES UNNGÅ EKSPONERING FOR STRÅLEN
VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN
VARO! AVATT AESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN
VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN
DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM
ATTENTION RAYO NNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU
!
EN 5TDVD1.1E2.
Figure 2-3
2.4Notes
•Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (), or hot ground (), depending
on the tested area of circuitry.
•The voltages and waveforms shown in the diagrams are
indicative. Measure them in the Service Default Mode (see
chapter 5) with a colour bar signal and stereo sound (L: 3
kHz, R: 1 kHz unless stated otherwise) and picture carrier
at 475.25 MHz (PAL) or 61.25 MHz (NTSC, channel 3).
•Where necessary, measure the waveforms and voltages
with () and without () aerial signal. Measure the
voltages in the power supply section both in normal
operation () and in standby (). These values are
indicated by means of the appropriate symbols.
•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.
Page 6
EN 6TDVD1.1E3.
3.Directions for Use
Directions for Use
Page 7
Directions for Use
EN 7TDVD1.1E3.
Page 8
EN 8TDVD1.1E3.
Directions for Use
Page 9
Directions for Use
EN 9TDVD1.1E3.
Page 10
EN 10TDVD1.1E3.
Directions for Use
Page 11
Directions for Use
EN 11TDVD1.1E3.
Page 12
EN 12TDVD1.1E3.
Directions for Use
Page 13
Directions for Use
EN 13TDVD1.1E3.
Personal Notes:
Page 14
EN 14TDVD1.1E4.
Mechanical instructions
4.Mechanical instructions
Index of this chapter:
1. Rear Cover Removal
2. Service Position Main Panel
3. DVD Module Removal
4. Side I/O Panel Removal
5. Rear I/O Panel Removal
6. Rear Cover Mounting
Note:
Figures can deviate slightly from the actual situation.
4.1Rear Cover Removal
1. Remove all fixation screws (7x) of the rear cover.
2. Pull the rear cover a little backwards.
3. Disconnect the Rear I/O and Side I/O panel cables
4. Now pull the rear cover backwards to remove it.
4.2Service Position Main Panel
1. Disconnect all cables of the DVD module.
2. Remove the main panel, by pushing the two centre clips
outward [1]. At the same time, pull the panel away from the
CRT [2].
3. Turn the panel 90 degrees clockwise [3].
4. Flip the panel 90 degrees [4], with the components towards
the CRT.
4.3DVD Module Removal
Remove the complete DVD module after unscrewing the four
fixation screws [1].
CL 26532120_026.eps
Figure 4-2 Disassemble DVD module
311002
4.4Side I/O Panel Removal
A
Remove the side I/O panel after unscrewing the screw from the
outside of the rear cover.
4.5Rear I/O Panel Removal
1
1
Remove the rear I/O panel after unscrewing the two screws
from the inside of the rear cover.
4.6Rear Cover Mounting
3
2
B
To reassemble the set, perform all described processes in
reverse order.
Be sure that, before the rear cover is mounted:
•The mains cord is mounted correctly in its guiding bracket.
•All wires/cables are returned in their original position.
4
CL 26532120_027.eps
311002
Figure 4-1 Service position Main panel
Page 15
Service Modes, Error Codes, and Fault Finding
5.Service Modes, Error Codes, and Fault Finding
EN 15TDVD1.1E5.
Index of this chapter
1. Service Modes
2. Dealer Mode
3. Fault Finding
5.1Service Modes
The Service Mode is a combination of the TV Service Mode
and the DVD Service Mode. You can enter the DVD Service
Mode via the TV Service Mode. The Service Mode offers
features, which the service technician can use to repair a set.
Any feature change, made via the Service Menu, will respond
at the same time (for example; if Hotel Mode is enabled, the
volume cannot be increased above max. volume displayed at
the Service Menu).
The Dealer Mode is a special DVD mode, to provide an auto
replay function for commercial purposes.
All displayed text strings in the Service Modes are in English.
5.1.1TV Service Mode
Purpose
•To perform alignments (e.g. colour adjustment and
geometry alignments)
•To change option settings
•Hotel Mode operations
•DVD Service menu
5. G2ADJ. To align the G2 (see chapter 8.x for a detailed
description).
6. VIDEO. To adjust RGB, R_cut-off and G_cut-off.
7. TUNE/IF. To align the tuner.
8. DVD. To enter the DVD Service Mode.
9. HOTEL M. To switch the Hotel mode 'on/off'.
10. VOLUME. To adjust the volume when Hotel mode is 'off'.
How to navigate
•Select menu items with the CURSOR UP/DOWN keys.
•With the CURSOR LEFT/RIGHT keys, it is possible to
change the value of the last two menu items (Hotel mode
and Volume).
•With the CURSOR RIGHT and ENTER keys, activate the
selected menu item.
•When you press the MENU key in a sub menu, you will
return to the previous menu.
•When you press the MENU key in the Service Mode menu,
you will return to the Main menu.
How to exit
•With the STANDBY command, the set switches to
Standby.
•With the MENU key, the set returns to the Main menu.
•With the AV key, the service mode closes.
Switching the set 'off' and 'on' with the mains switch, brings the
set into normal operation again.
All changes in the Service Mode are stored immediately.
Specifications
All service unfriendly modes (if present) are disabled, like:
•Auto switch 'off' (when there is no 'ident' signal)
•Timer switch to a channel
•Automatic user menu time-out
•The NVM is unprotected
•AV functions are not working
How to enter the Service Mode
Screen menu's must be 'off', when you enter the Service Mode.
Use a standard customer RC-transmitter and key in the code
062596 directly followed by the MENU button.
The following screen is visible when you enter the Service
Mode:
LLLLLLLPAB#- XX
OPT I ONS
GEOME TRY
G2ADJ
VIDEO
TUNE/ I F
DVD
Ho t e l MOF F
V o l u m e------ ------ ------ ------ ------ ------ ------ ---
CL 26532120_018.eps
311002
Figure 5-1 TV Service Mode menu
1. LLLLLLL. This is the used IC type.
2. PAB#-XX. This is the software identification.
– P = Philips.
– A = the region (W = West Europe, E = East Europe).
– B = sound specification (M = Mono, S = Stereo).
– # = number of TXT pages.
– XX = the software version number (the first X is the
main software version number and the second X is the
sub software version number).
3. OPTIONS. Three codes possible. (see chapter 8.x for a
detailed description).
4. GEOMETRY. To align the geometry (see chapter 8.x for a
detailed description).
5.1.2Dealer Mode
Purpose
•To provide an auto replay function (commercial purpose).
•To ignore some features.
Pre-conditions to start the Dealer Mode are:
•Put the set in DVD Mode.
•Switch Teletext 'off' (if set is in TV Mode).
•Switch Childlock 'off'.
•No screen Menu's.
•A disc exists in the tray.
•Close disc tray.
•Switch the DVD in STOP condition.
Specifications
•The information line displays the current mode.
•The set starts to play the disc.
•The Disc Menu passes automatically.
•At the end of the disc, the set replays the disc from chapter
1 onwards.
In Dealer Mode, some restrictions and rules are defined:
•While the Dealer Mode is active, you cannot use the
STANDBY key (RC reception is blocked), so it is not
possible to go to standby. The only way to switch off the set
is to switch the Mains Power 'off'.
•When the mains Power is switched 'on', the set will go out
of standby (DVD Mode) automatically.
How to enter the Dealer Mode
Use a standard RC-transmitter and key in the code 9999
directly followed by the MENU button.
The set will now switch to Dealer Mode. The current mode is
written to the NVM.
The set switches to the DVD mode and informs the DVD about
the current mode.
Page 16
EN 16TDVD1.1E5.
Service Modes, Error Codes, and Fault Finding
Dea l e r Mode ON
CL 26532120_019.eps
311002
Figure 5-2 Dealer Mode menu
How to exit
Use a standard RC-transmitter and key in the code 9999
directly followed by the MENU button.
The Play mode is stopped, the Dealer mode is deactivated, and
the TV menu returns.
Page 17
Wiring Diagram, Block Diagrams and Overviews
6.Wiring Diagram, Block Diagrams and Overviews
Block Diagram
BLOCK DIAGRAM
17TDVD1.1E6.
A1 TUNER
IF1 A2-5
IF2 A2-4
SDA A4-1/A2-3
SCL A4-2/A2-2
AGC A2-1
SC_I A2-2
11
10
5
4
1
A3 SCART
2 3 4
AV_STATUS
A2-1
A11
KEYBOARD
KEYB A7-1
13
6 7 8
B A 2-8 CLI A7-1
11
17
12
21
10
G A2-7
A4 EEPROM
A7-1/A2-1/A1-1
A1-2/A2-2/A7-2
A5 POWER SUPPLY
AC IN
FBEXT A2-5
18
SDA
SCL
15
16
R A2- 6
CVBS A2-3
5
14
5
6
19
20
SCART1
IC02
24C08
9
SS01
2
3
A2 VIDEO PROCESSOR
L/L’ A7-8
IF1 A2-5/A1-5
IF1 A2-5/A1-5
IF2 A1-4
AGC A1-1
AV_STATUS A3-1
SC_IN A3-2
CVBS A3-3
CVBSEXT A3-4
B A3-8
G A3-7
R A3-6
FBEXT A3-5
IP01
TDA16846
14
11
STV2246/47/48
1
2
6
7
8
11
14
13
20
25
26
27
28
ICV1
WP02
AUDOUT A8-1
55
SDA A7-1/A4-1/A1-3
52
SCL A7-2/A1-2/A4-2
51
HEATER A6-1/A7-7
49
HOUT A6-2
48
VERT A9-1
47
BCL A6-3
46
CVBSOUT A7-6
44
V_AMP A9-2
42
FB_OSD A7-10
37
R_OSD A7-3
36
G_OSD A7-4
35
B_OSD A7-5
34
A7 µ-CONTROLLER A8 AUDIO AMPLIFIER
IA01
TDA7057
CLI A3-1
MUTE_DVD
A8-10/A8-1/A10-1
L/L’ A2-8
TV/DVD A8-2
B_ OSD A2-5
G_OSD A2-4
R_ OSD A2-3
FB_OSD
A2-10/A7-5
SDA
A2-1/A4-1/A1-1
SCL
A2-2/A4-2/A1-2
ST92195/92185
8
11
12
13
15
16
17
18
19
25
IC01
56
KEYBOARDA11-1
42
43
V_OSDA9-1
41
40
33
34
DVD SB
VOLA8-1
HEATER A2-7/A6-1
CVBSOUT
FB_OSD
A7-5/A2-10
A2-6
VOL A7-1
AUDIO OUT A2-1
MUTE_DVD
A8-10/A10-1/A7-1
L_DVD A10-2
A9 VERTICAL
18
ID41 TDA1771
2
34
3
1
12
1
2
VERT A2-1
V_OSD A7-1V_AM P A2-2
.
110 V
A6 HORIZONTAL
A10 AV INTERFACE CONN.
16 V
5 VD
5 VA
HOUT A2-2
BCL A2-3
FBT
1
8
4
24 V
1214151618
SS08
MN405
LM358
IA03
3B
I060
2
6
7
R_DVD
A10-3
12V
8 V
HEATER
9
3
12 V
CVBS_DVD DOUT _DVD A7-L_DVD R_DVD
MUTE
A8-5 A8-4 1/A8-1 A8-2 A8-3
CL 26532120_004.eps
251002
Page 18
Wiring Diagram, Block Diagrams and Overviews
I2C Bus Interconnection Diagram
I²C BUS INTERCONNECTION DIAGRAM
A1
A2
18TDVD1.1E6.
A4
+5V
A7
TUNER
5
4
SDA
SCL
RT
RT
SDA
SCL
RV33
51
VIDEO
PROC.
52
RV34
SDA
SCL
R048
6 5
EEPROM
R049
SDA
SCL
R013
2019
u-CONTROLLER
R012
SDA
SCL
CL 26532120_005.eps
251002
Page 19
Wiring Diagram, Block Diagrams and Overviews
Supply Voltage Diagram
SUPPLY VOLTAGE DIAGRAM
19TDVD1.1E6.
A2
8V
A8
5V
LV01
LV03
DV23
DV22
DV21
DV20
IA03
MN4
053
SA02
1
2
STV2246/47/48
12
17
25
26
27
28
RA11
16
11
RS58
LV07
VIDEO
PROC.
+12V TO RA10
8V
5V
LV01
53
LV01
45
8V
8V
A6
110V
16V
A9
12
TV05
TV01
RV03
SS05
14
RV54
8V
A1
5V
5V
A4
5V
33V
LT01
RT03
RT01
9
7
3
1
TUNER
EEPROM
C011
A7
5V
5V
5VD
1 8
5VA
T003
R011
R010
R007
R032
R012
R013
2
3
12
13
14
19
20
21
25
26
ST92195/92185
56
54
46
45
41
40
39
34
33
31
55
43
D004
R052
D002
D001
R002
R008
R057
D005
R028RA09
T001
R080
R081
5VA
5VA
5V
5V
5V
12VDVD
5VDVD
5V
5VA
5V
FBT
1
2
4
3
RD15 RD12
8
24V
12V
8V
A3
19
RV06
8V TO SS05/4
8V
24V
TDA1
771
9
8
7
4
1
RD45
RD44 RD56
RD28 RD40
12V
A10
SS08
DV10
5V
8V
RV57
CL 26532120_006.eps
251002
Page 20
Circuit Diagrams and PWB Layouts
20TDVD1.1E7.
7.Circuit Diagrams and PWB Layouts
Main Panel: Tuner
A1
Main Panel: Video Processor
A2
D2
D1
CL 26532120_039.eps
021202
D1
D2
D3
D5
D4
D3
CL 26532120_042.eps
D4
021202
Page 21
Circuit Diagrams and PWB Layouts
21TDVD1.1E7.
Main Panel: SCART
A3
Main Panel: u-Controller
A7
Main Panel: EEPROM
A4
CL 26532120_038.eps
021202
D2
D1
CL 26532120_029.eps
021202
CL 26532120_033.eps
021202
Page 22
Main Panel: Power Supply
A5
Circuit Diagrams and PWB Layouts
22TDVD1.1E7.
D1
D1
CL 26532120_036.eps
021202
Page 23
Main Panel: Horizontal
A6
Circuit Diagrams and PWB Layouts
23TDVD1.1E7.
D2
D1
CL 26532120_031.eps
021202
Page 24
Circuit Diagrams and PWB Layouts
24TDVD1.1E7.
Main Panel: Audio Amplifier
A8
Main Panel: Vertical
A9
D1D2
CL 26532120_028.eps
021202
D1D2
CL 26532120_028.eps
281102
CL 26532120_041.eps
021202
Page 25
Circuit Diagrams and PWB Layouts
25TDVD1.1E7.
Main Panel: Out
A10
CL 26532120_035.eps
021202
Personal Notes:
Main Panel: Keyboard Panel
A11
KEYBOARD PANEL
CL 26532120_034.eps
0212102
Page 26
Circuit Diagrams and PWB Layouts
Layout Main Panel (Top Side)
26TDVD1.1E7.
CL 26532120_051.eps
281102
Page 27
Circuit Diagrams and PWB Layouts
Layout Main Panel (Bottom Side)
27TDVD1.1E7.
CL 26532120_050.eps
281102
Page 28
Circuit Diagrams and PWB Layouts
28TDVD1.1E7.
CRT Panel
B
Layout CRT Panel (Top Side)
CL 26532120_040.eps
021202
CL 26532120_046.eps
281102
Layout CRT Panel (Bottom Side)
CL 26532120_047.eps
281102
Page 29
Circuit Diagrams and PWB Layouts
29TDVD1.1E7.
RC Panel
C
Front AV Module
D
Layout RC Panel (Top Side)
CL 26532120_045.eps
281102
CL 26532120_037.eps
021202
CL 26532120_030.eps
021202
Layout Front AV Module (Top Side)
CL 26532120_048.eps
281102
Page 30
Circuit Diagrams and PWB Layouts
30TDVD1.1E7.
Line Out Module
E
Personal Notes:
Layout Line Out Module (Top Side)
CL 26532120_032.eps
021202
CL 26532120_049.eps
281102
Page 31
8.Alignments
Alignments
EN 31TDVD1.1E8.
Index of this chapter
1. Hardware Alignments
2. Software Alignments/Settings
8.1Hardware Alignments
8.1.1System Voltage Adjustment
•Switch the TV in AV mode by pressing the AV button on the
remote control unit (minimum beam current condition).
•Adjust the VAP2 potentiometer until you measure 115 Vdc
on the cathode of diode DP08.
8.2Software Alignments/Settings
Enter the TV Service Mode (see chapter 5). The Service Mode
menu will now appear on the screen.
LLLLLLLPAB#- XX
OPT IONS
GEOME TRY
G2ADJ
VIDEO
TUNE/ I F
DVD
Ho t e l MOFF
V o l u m e--- ------ ------ ------ ------ ------ ------ ------
Figure 8-1 Service mode menu
Select one of the following alignments:
1. OPTIONS.
2. GEOMETRY.
3. G2ADJ.
4. VIDEO.
5. TUNE/IF.
8.2.1Options
Options are used to control the presence/absence of certain
features and hardware.
An Option byte represents a number of different options. All
options are controlled via three option bytes.
OPT IONS
O111111111
O201010000
O311100111
Figure 8-2 Option menu
How to change an Option byte
Select the option byte (01, 02 or 03) with the CURSOR UP/
DOWN keys.
Use a digit key (0 to 7) to change the relevant option bit. The bit
values will change from 0 to 1 and from 1 to 0 on each pressing
of the relevant digit key.
CL 26532120_018.eps
CL 26532120_020.eps
311002
311002
Option bit definition
Option byte 1 (01): System configuration
Default setting is: 10111111 (b7.....b0)
b0
1: France and Europe available
0: Only Europe available
1: Standby after power 'on'
0: No Standby after power 'on'
Note:
•Reserved bits (*) must be set to 0.
•The 7th bit of Option byte 03 enables the 'no video ident'
timer.
8.2.2Geometry
The Geometry Alignments menu contains several items to
align the set, in order to obtain a correct picture geometry.
1V.S4/350h0
Figure 8-3 Geometry alignment menu
How to align
Enter the Service Mode and select the GEOMETRY settings.
Standard geometry adjustments are carried out by VSIZE,
VPOS and HPOS settings.
VSIZE 16/9 50h setting has to be carried out until 3 cm distance
between upper and lower parts of the screen.
Same adjustments are valid for 60H 16/9 and 4/3.
•V.S4/3 50h Vertical size property of picture at 50 Hz 4/3
aspect ratio broadcast (default value -17).
•V.S16/9 50h Vertical size property of picture at 50 Hz 16/
9 aspect ratio broadcast (default value 16).
•V.S4/3 60h Vertical size property of picture at 60 Hz 4/3
aspect ratio broadcast (default value -32).
•V.S16/9 60h Vertical size property of picture at 60 Hz 16/
9 aspect ratio broadcast (default value 0).
•V.P To adjust the vertical position of the picture (default
value 7).
•H.P To adjust the horizontal position of the picture (default
value 3).
8.2.3G2 Adjust menu
In this menu we will see a comparative display according to the
preset. To adjust the G2, turn the G2 potentiometer on the LOT
until you reach the ':' sign. If the colon is highlighted,
adjustment is achieved ('<' means you have to decrease and '>'
means you have to increase).
G2ADJ
>:<
Figure 8-4 G2 adjustment menu
CL 26532120_021.eps
CL 26532120_022.eps
311002
311002
8.2.4Video
1R0
Figure 8-5 Video alignment menu
1. Apply a 'white' pattern (at 100 IRE)
2. Set CONTRAST to 70% and BRIGHTNESS and COLOUR
SATURATION in the middle.
3. Place the colour analyser.
4. Via R, G, and B, it is possible to modify the 'peak white'.
5. Adjust to obtain the necessary values for x and y.
– R (default value = 20)
– G (default value = 16)
– B (default value = 12)
1. Apply a 'dark gray' pattern (at 10 IRE).
2. Set CONTRAST to 70% and BRIGHTNESS and COLOUR
SATURATION in the middle.
3. Adjust to obtain the necessary values for x and y by
changing the RED CFF and GREEN CFF
– R CFF (default value = 3)
– G CFF (default value = -7)
Remark:After the low light alignment it may be necessary to
check and to re-align the high light, and to repeat several times
the procedure to obtain a good alignment for both low and high
light.
8.2.5Tune IF
1AGC50
>:<
Figure 8-6 Tuner alignment menu
AGC adjustment (default value = 49):
Select AGC, and adjust the settings until the ':' indicator
(displayed as >:< ) turns into red by pressing < and > on the
remote control.
PIF adjustment for BG/DK/L systems:
1. Apply a 38.9 MHz PAL BG signal.
2. Enter the Service Mode.
3. Select TUNE IF.
4. Choose the PIF COARSE and PIF FINE items, and adjust
the settings until the ':' indicator (displayed as >:< ) turns
into red by pressing < and > on the remote control.
– PIF C (default value = -2)
– PIF F (default value = -12)
PIF adjustment for L' system:
1. Apply a 33.9 MHz SECAM L' signal.
2. Enter the Service Mode.
3. Select TUNE IF.
CL 26532120_023.eps
CL 26532120_024.eps
311002
311002
Page 33
4. Choose the PIF COARSE L’ and PIF FINE L’ items, and
adjust the settings until the ':' indicator (displayed as >:< )
turns into red by pressing < and > on the remote control.
– PIFCL’ (default value = -0)
– PIF FL’ (default value = -0)
8.2.6DVD
Tel r A DVD-TVVer 0 .000
Reg iOn Code2
Alignments
EN 33TDVD1.1E8.
Figure 8-7 DVD settings menu
In this menu the following selections are possible:
•Region Code 2
•Region Code All
8.2.7Hotel Mode
Installation and Child Lock Menus are omitted in Hotel Mode.
You cannot search any channel when the Hotel Mode is
activated.
8.2.8Volume
In Hotel Mode the volume level cannot be increased higher
then the level adjusted in the Service Mode.
CL 26532120_025.eps
311002
Page 34
EN 34TDVD1.1E9.
Circuit Descriptions and Abbreviation List
9.Circuit Descriptions and Abbreviation List
9.1List of Abbreviations (not applicable yet)
9.2IC Data Sheets
In this paragraph, the internal block diagrams and pinning are
given of ICs that are drawn as a “black box” in the electrical
diagrams (with the exception of “memory” and “logic” ICs).
9.2.1STV2248 Multi Standard TV Processor
CL 26532120_011.eps
251002
Figure 9-1 STV2248 internal block diagram
Page 35
Circuit Descriptions and Abbreviation List
EN 35TDVD1.1E9.
CL 26532120_009.eps
251002
Figure 9-2 STV2248 pin definitions (1)
Page 36
EN 36TDVD1.1E9.
Circuit Descriptions and Abbreviation List
Figure 9-3 STV2248 pin definitions (2)
CL 26532120_010.eps
251002
Figure 9-4 STV2248 pinning
CL 26532120_008.eps
251002
Page 37
9.2.2ST92195 C/D
Circuit Descriptions and Abbreviation List
EN 37TDVD1.1E9.
NMI
INT[7:4]
INT2
INT0
OSCIN
OSCOUT
RESET
RESETO
SDO/SDI
SCK
MCFM
STOUT
VSO[2:1]
Up to 64
Kbytes ROM
256 bytes
RAM
Up to 8
Kbytes
TDSRAM
TRI
256 bytes
Register File
8/16-bit
CPU
MMU
Interrupt
Management
ST9+ CORE
RCCU
16-BIT
TIMER/
WATCHDOG
SPI
TIMING AND
CLOCK CTRL
STANDARD
TIMER
VOLTAGE
SYNTHESIS
MEMORY BUS
REGISTER BUS
I/O
PORT 0
I/O
PORT 2
I/O
PORT 3
I/O
PORT 4
I/O
PORT 5
DATA
SLICER
& ACQUI-
SITION
UNIT
SYNC.
EXTRAC-
TION
VPS/WSS
DATA
SLICER
ADC
SYNC
CONTROL
ON
SCREEN
DISPLAY
PWM
D/A CON-
VERTER
8
6
4
8
2
FREQ.
MULTIP
P0[7:0]
P2[5:0]
P3[7:4]
P4[7:0]
P5[1:0]
TXCF
CVBS1
WSCR
WSCF
CVBS2
AIN[4:1]
EXTRG
VSYNC
HSYNC/CSYNC
CSO
PXFM
.
R/G/B/FB
TSLU
HT
PWM[7:0]
All alternate functions
Figure 9-5 ST92195 C/D internal block diagram
(Italic characters)
are mapped on Ports 0, 2, 3, 4 and 5
CL 26532120_012.eps
251002
Page 38
EN 38TDVD1.1E9.
Circuit Descriptions and Abbreviation List
INT7/P2.0
RESET
P0.7
P0.6
P0.5
P0.4
P0.3
AIN4/P0.2
P0.1
CSO/RESET0/P3.7
P0.0
P3.6
P3.5
P3.4
FB
SDI/SDO/P5.1
SCK/INT2/P5.0
V
JTDO
WSCF
V
/WSCR
PP
AVDD3
TEST0
MCFM
JTCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
B
16
G
17
R
18
19
20
21
DD
22
23
24
25
26
27
28
P2.1/INT5/AIN1
56
P2.2/INT0/AIN2
55
P2.3/INT6/VS01
54
P2.4/NMI
53
P2.5/AIN3/INT4/VS02
52
OSCIN
51
OSCOUT
50
P4.7/PWM7/EXTRG/STOUT
49
P4.6/PWM6
48
P4.5/PWM5
47
P4.4/PWM4
46
P4.3/PWM3/TSLU/HT
45
P4.2/PWM2
44
P4.1/PWM1
43
P4.0/PWM0
42
VSYNC
41
HSYNC/CSYNC
40
AVDD1
39
PXFM
38
37
JTRSTO
36
GND
AGND
35
CVBS1
34
CVBS2
33
JTMS
32
AVDD2
31
CVBSO
30
29
TXCF
CL 26532120_013.eps
251002
Figure 9-6 ST92195 C/D pinning
Table 9-1 ST92195 C/D pin definitions
Pin No. Pin NameI/O Function
1INT7/P2.0IR INT. IN
3P0.7DVDDATAOUT
4P0.6STOP
5P0.5N.C.
6P0.4N.C.
7P0.3N.C.
8AIN4AV.STATUS
9P0.1N.C.
10P0.0N.C.
11CSO/RESET0/P3.7MUTE_DVD
12P3.6L/L'
13P3.5TV/DVD
14P3.4STDBY
28JTCKN.C.
30CVBSON.C.
32JTMSN.C.
42P4.0/PWMODVD_STD_BY
43P4.1/PWM1VOL
44P4.2/PWM2N.C.
45P4.3/PWM3DVD POWER +5V
46P4.4/PWM4DVD POWER +12V
47P4.5/PWM5N.C.
48P4.6/PWM6N.C.
49P4.7/PWM7/EXTRG/STOUTN.C.
53P2.4/NMIN.C.
54P2.3/INT6/VS01LED CONTROL
55P2.2/INT0/AIN2DVDDATAIN
56P2.1/INT5 /AIN1KEYBOARD INPUT
Page 39
Circuit Descriptions and Abbreviation List
9.2.3TDA1771 Vertical Deflection Circuit
EN 39TDVD1.1E9.
TRIGGER IN
9
VOLTAGE
REGULATOR
2
FLYBACK
GENERATOR
R3
3
RAMP
GENERATOR
BUFFER
STAGE
CLOCK
PULSE
POWER
AMP.
THERMAL
PROTECTION
467 85
CL 26532120_015.eps
Figure 9-7 TDA 1771 internal block diagram
10
1
251002
10
9
8
7
6
5
4
3
2
1
FLYBACK GENERATOR
V
S
INVERTING INPUT
BUFFER OUTPUT
RAMP GENERATOR
GROUND
HEIGHT ADJUSTMENT
TRIGGER INPUT
OUTPUT STAGE V
POWER OUTPUT
CL 26532120_014.eps
Figure 9-8 TDA 1771 pinning
S
251002
Page 40
EN 40TDVD1.1E9.
9.2.4TDA 16846
SYN
OTC
RZI
SRC
OCI
7
5 V
1
3
4
5
3.5 V
R
7
30 k
R
8
75 k
Control Voltage
Limit
2 V
CS1
5 V
D3
Circuit Descriptions and Abbreviation List
R
D4
4
KSY
+
R
3
15 k
Off Time
Comparator
+
-
RSTC/RSTF
Error
Amplifier
Control Voltage
+
-
Buffer for
+
+
-
D2
PVC
Fold Back Point Correction
R
x 1/3
6
11
Primary
Voltage
G1
1.5 V
PVA
+
D5
-
+
1 V
3.5 V
R
6
Check
+
V
CC
1
+
-
1.2 V
9
REF
8
N.C.
6
FC2
ED2
G4
1
R
2
Error-
Flipflop
S
R
FC2
Q
R
PCS
1
20 k
5 V
2
On Time
Comparator
+
ED1
1.5 V
D1
Startup
Diode
< 25 mV
Overvoltage
Comparator
14
V
CC
12
GND
1)
The input with the lower voltage becomes operative
16 V
+
-
Figure 9-9 TDA 16846 internal block diagram
1
OTC
PCS
2
3
RZI
4
SRC
5
OCI
6
FC2
7
SYNN.C./PMO
AEP02647
VCC
14
OUT
13
GND
12
PVC
11
FC1
10
REF
9
8
CL 26532120_016.eps
251002
Figure 9-10 TDA 16846 pinning
I
1
15/8 V
&
G2
Zero Crossing
Signal
Supply
Voltage
Comparator
+
-
On Time
Flipflop
S
Q
R
G3
&
Output
Driver
13
OUT
FC1
1 V
+
10
FC1
AEB02648
CL 26532120_017.eps
251002
Table 9-2 TDA 16846 pin definitions
PinSymbolFunction
1OTCOff Time Circuit
2PCSPrimary Current Simulation
3RZIRegulation and Zero Crossing Input
4SRCSoft-Start and Regulation Capacitor
5OCIOpto Coupler Input
6FC2Fault Comparator 2
7SYNSynchronization Input
8N.C./PMO Not Connected (TDA16846)/
PMO (TDA16847)
9REFReference Voltage and Current
10FC1Fault Comparator 1
11PVCPrimary Voltage Check
12GNDGround
13OUTOutput
14VCCSupply Voltage