Philips 32PFL7422/79 User manual

Service
Service
Service
Service
Service
Service
PHILIPS
1. Technical Specifications and Connections
and Chassis Overview 2
2. Safety Instructions, Warnings and Notes 6
3. Directions for User 8
4. Mechanical Instructions 16
5. Service Modes, Error
Codes and Fault Finding 18
6. Wiring Diagram 25
Block Diagram 26
7. Circuits Diagrams & PWB Layouts
Diagram
(S-01)32
D-Sub (S-02)33
Tuner & Input (S-03)34
CPU (S-04)35
SVP_LX66-1 (S-05)36
SVP_LX66-2 (S-06)37
SVP_LX66-3 (S-07)38
DDRRAM & Flash (S-08)39
HDMI (S-09)40
MST_ADC (S-10)41
<Title> (S-11)42
AUDIO DECODER (S-12)43
Audio_AMP (S-13)44
iTV & Compair & I2C (S-14)45
Power (S-15)46
Waveform Diagram 53
Power Board(for 37TA) (P)55
Contents Page
Contents
Contents Page
Power Board(for 42TA) (P)58
(K)61
(I)64
Side AV (SA)67
Side AV (SA)70
8. Alignments
Electrical Instructions 73
75
Serial NO.Definition 76
Circuit Description 77
IC Data Sheets 82
10.
Recommended Parts List 92
Spare Parts List 94
11. Different Parts List 110
12.
KEY Board
IR Board
Board(for 37TA)
Board(for 42TA)
Recommended/Spare Parts List
Software Upgrading
9.
Revision List 117
Circuit Descriptions,
Abbreviations List and IC Data Sheets
Abbreviations List 79
Chassis
Colour Television
42PFL5422/93
42TA2800/79
42TA2800/93
42TA2800/98
42TA2800S/93
42TA2800S/98
42TA3000/93
Published by CS 0768 BU CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 17062
Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
C
TPT1.1A
LA
32PFL7422/79
32PFL7422/93
32PFL7422/98
32PFL7482/98
37TA2800/79
37TA2800/93
37TA2800/98

2TPT1.1A LA
1. Technical Specifications and Connections and Chassis Overview
Index of this chapter:
1.1 Technical Specifications
1.2 Connections
1.3 Chassis Overview
Notes:
Figures below can deviate slightly from the actual situation,
due to the different set executions.
Specifications are indicative (subject to change).
·
·
2 Sound1.1.
Fig1-1
1.2.2 Input signal
1.2.2.1 Signal type
Display type : LCD
Screen size : 37"(94cm), 16:9
42"(107cm), 16:9
Resolution (HxV pixels) : 1280(H) x 768(V)
Contrast ratio : 1000:1 (37")
1200:1 (42")
Light output (cd/m2) : 500
Response time (ms) : 8ms(Typ.)
Viewing angle (HxV degrees) : 178/178
Tuning system : WE (PAL B/G/D/K/I ; SECAM L/L)
Supported video formats : 640 x 350 60Hz
640 x 480 60Hz
720 x 400 60Hz
800 x 600 60Hz
832 x 624 60Hz
1024 x 768 60Hz
1280 x 720 60Hz
1280 x 768 60Hz
HD support timing : 1920X1080I 60Hz
1920X1080I 50Hz
1280X720P 60Hz
1280X720P 50Hz
720X576P 50Hz
720X480P 60Hz
720X576i 50Hz
720X480i 60Hz
Sound systems : Stereo / Virtual Surround
Maximum power : 2 x 10W
1.1 Technical Specifications
1.1.1 Technical Specifications
Power Supply
-AC/DC Power adapter : 90V ~ 264VAC,50/60±2Hz
-Power consumption : 250W/Max(at PC mode),
250W/Max(at TV mode) with Audio.
-Power cord length : 1.8m
-Power cord type : European type and China type
-Power indicator : LED (On: Blue,Sleeping mode: Amber)
-Auto power saving : <2W
-Stand-by (W) : <2W
Horizontal scan
-Horizontal : 30 - 63KHz
-Vertical : 50 - 75Hz
Dimensions (WxHxD in mm) : 924 x 688.7 x 288
Ambient conditions:
-Temperature :0°Cto40°C
-Humidity :10 to 90%
Miscellaneous1.1.3
1.2 Connections
1.2.1 Signal Connector
1. Technical Specifications, Connections and Chassis Overview
1. Tuner: PAL D/K for China model
Multi-standard for WE model
2. SPDIF OUT : Digital audio output (HDMI audio output)
3. PVR OUT : Composite video output (CVBS) and audio R/L(RCA jack)
4. AV audio IN : AV1 and S-Video audio R/L(RCA jack)
5. AV1 IN : Composite video input (AV1)
6. S-Video 1 IN : S-video input (S-Video 1)
7. Comp video 1 IN : HDTV input with YPbPr format with audio R/L.
8. Comp video 2 IN : HDTV input with YPbPr format with audio R/L.
9. PC audio IN: audio R/L(mini-jack).
10. PC IN: VGA input (D-SUB connectors)
11. HDMI : digital video and audio input
12. speaker output : external speakers output connectors
13. earphone : earphone jack
14. AV2 IN : Composite video input (AV2 side)
15. AV audio IN : AV2 and S-Video side audio R/L(RCA jack)
16. S-Video IN : S-video input (S-Video side)
12
11
10
9
7
8
5
6
43
2
1
PC Signal type
Analog Video : 0.7 Vp-p linear, positive polarity
Separate Sync. : TTL level, separate, positive or negative
polarity
Signal source: pattern generator format as attachment.
(Table 1 to 6) Reference generator: Quantum Data 801GD,
802G or 802R Pattern Generator
A. PC Audio input
Location: Rear down side
Specification
Audio L/R input
- Nominal : 0.5 V rms.
-Maximum :1.5Vrms.
- Impedance > 10 k W.
Note : the input will be overloaded when the
signal > 1.5 V rms.
Connector type : 3.5 mm mini Jack
ESD-protected : 15 kV
TV Signal type
a. RF Signal : Aerial input / 10mV(30-100dBuV)
b. Video signal : CVBS input ( RCA jack) / 1Vpp (300mV-
sync, 700mV-video.)
13
1415
16

3
TPT1.1A LA
PIN
No.
SIGNAL b(PC)
1Red
2Green
3Blue
4NC
5GND
6RedGND
7GreenGND
8BlueGND
9 +5V (Supply from PC)
10 Sync GND
11 NC
12 SDA
13 H-sync
14 V-sync
15 SCL
D-sub Pin assignment
1. Technical Specifications, Connections and Chassis Overview
No. 1
No. 2
No. 19
No. 18
Type A Connector
PIN
No.
SIGNAL
1 TMDS Data2+
2 TMDS Data2 shield
3 TDMS Data2-
4 TMDS Data1+
5 TMDS Data1 shield
6 TMDS Data1-
7 TMDS Data0+
8 TMDS Data0 shield
9 TMDS Data0-
10 TMDS Clock+
11 TMDS Clock Shield
12 TMDS Clock-
13 CEC
14 Reserved (N.C. on device)
15 SCL
16 SDA
17 DDC/CEC Ground
18 +5V Power
19 Hot Plug Detect
S video input / 1VppY-signal, +/-300mV
C-signal
SCART input: CVBS SSRGB
signal ( for WE model only)
Comp video in(YPbPr input)/ 1Vpp Y
signal, +/-350mV Pb,Pr signal
HDMI:Digital interface with 4 channels
TMDS signal
CVBS output ( RCA jack) / 1Vpp (
300mV-sync, 700mV-video.)
c. Audio signal : Audio (1) R/L for AV IN(AV and S-Video).
Level: - Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance > 10 kW.
Audio (2) R/L for SCART IN
Level: - Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance > 10 kW.
Audio (3) R/L for Comp video IN.
Level: - Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance > 10 kW.
Audio (4) digital audio for HDMI Video IN.
d. PVR (CVBS) output:
Video: CVBS output 1Vpp / Impedance : 75W.
Audio: R/L output (from CVBS)
Level: - Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance < 1 kW.
e. SCART output: ( for WE model only)
Video: CVBS output 1Vpp / Impedance : 75W.
Audio: R/L output (from CVBS)
Level: - Nominal : 0.5 V rms.
- Maximum : 1.5 V rms.
- Impedance < 1 kW.
f. SPDIF output: Serial digital audio output when input is HDMI.
g. Headphone
Audio: R/L output -10mW at 32W.
3.5mm stereo jack with switch
Impedance is between 8 and 600 W
PC input connectors
TV video input /output connectors
A. HDMI for digital Video / Audio interface with pin assignment
as follows:

4TPT1.1A LA 1. Technical Specifications, Connections and Chassis Overview
B. CVBS
The input signals are applied to display through CVBS cable
Pin assignment
PIN NO. SIGNAL
1GND
2 CVBS
3 CVBS
4 CVBS
C. S-Video
The input signals are applied to display through S-Video cable
Pin assignment
PIN NO. SIGNAL
1GND
2GND
3GND
4GND
5GND
6LUMA
8CHROMA
D. Component Video
The input signals are applied to display through Component Video
RCA Jack pin assignment
PIN NO. SIGNAL
1GND
2RedàPr
3GND
4BlueàPb
5GND
6GreenàY
E. SCART
Scart connector is only used in WE model. The Scart (Syndicat
des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs)
connector is used for combined audio and video connections.
Pin TV SCART
1N/C
2Right audio input
3N/C
4Audio ground
5Blue ground
6Left audio input
7Blue output
80-2.5 volts (low) when:
TV output
4.5-7.5 volts (High-to-6v) when:
-inputting picture format setting is '16:9',
9-12 volts (high-to-12v) when:
-inputing picture format setting is '4:3'
9Green ground
10 N/C
11 Green output
12 N/C
13 Red ground
14 N/C
15 Red output
16 0 volt (low) when:- pin 8 of the TV scart is low
or when:
- Composite video signal
1-3 volts (high) when:
- video input setting is 'RGB',
17 Composite video output ground
18 Composite video input ground
19 N/C
20 Composite video input
21 Ground

5
TPT1.1A LA
1. Technical Specifications, Connections and Chassis Overview
1.3 Chassis Overview
Side AV board SA
Key board K
Scaler board S
Power board
P
IR board
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2. Safety Instructions, Warnings and Notes TPT1.1A LA 7

8TPT1.1A LA 3. Directions for Use
3. Directions for Use
You can download this information from the following websites:
http://www.philips.com/support
http://www.p4c.philips.com
37TA2800 AP OSD tree
PC MODE
1st Layer 2nd Layer 3rd Layer
Picture
Color temp Normal
Warm
Cool
Brightness
Contrast
Auto adjust Yes
Store ? Yes
No
Manual adjust Phase
Clock
Horizontal
Vertical
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Picture format Full screen
4:3
PIP Size Off
Small
Large
PBP
Input TV
AV1
AV2
Position 1
2
3
4
Sound PC
PIP
Install
Language English
Thai
Arabic
Factory reset No
Yes
TV / AV/ S-VIDEO / HD MODE
1st layer 2nd layer 3rd layer 4th layer 5th layer
Picture
Smart picture Personal
Rich
Nature
Soft
Multimedia
Contrast
Brightness
Color
Sharpness
Color temp Normal
Warm
Cool
Picture format Super zoom
4:3
Movie expand 14:9
Movie expand 16:9
16:9 subtitle
Widescreen
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Timer Clock
Start time
Stop time
Sleep timer
NR On
Off

9
TPT1.1A LA
3. Directions for Use
Auto lock Lock program
Change code Yes
Clear all On
Off
Source list TV
HDMI 1
HDMI 2
CVI 1
CVI 2
AV
Side AV
PC
Install
Language English
Thai
Arabic
Auto store Start ? Auto store
Please wait
Prog. found
Frequency
Manual store Manual store MHz
Start ?
Prog. no
Finetune
Store Store ?
Stored
Channel setting Channel edit Channel
Skipped Active
Skipped
Channel swap From
To
Exchange Exchange ?
Exchanged
Name edit Channel
Name
Channel sort Sort ? Sorting … …
Sort complete
Factory reset No
Yes

10 TPT1.1A LA 3. Directions for Use
37TA2800 CH OSD tree
PC MODE
1st Layer 2nd Layer 3rd Layer
Picture
Color temp Normal
Warm
Cool
Brightness
Contrast
Auto adjust Yes
Store ? Yes
No
Manual adjust Phase
Clock
Horizontal
Vertical
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Picture format Full screen
4:3
PIP Size Off
Small
Large
PBP
Input TV
AV1
AV2
Position 1
2
3
4
Sound PC
PIP
Install
Language English
Factory reset No
Yes

11
TPT1.1A LA
3. Directions for Use
TV / AV/ S-VIDEO / HD MODE
1st layer 2nd layer 3rd layer 4th layer 5th layer
Picture
Smart picture Personal
Rich
Nature
Soft
Multimedia
Contrast
Brightness
Color
Sharpness
Color temp Normal
Warm
Cool
Picture format Super zoom
4:3
Movie expand 14:9
Movie expand 16:9
16:9 subtitle
Widescreen
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Timer Clock
Start time
Stop time
Sleep timer
NR On
Off
Auto lock Lock program
Change code Yes
Clear all On
Off
Source list TV
HDMI 1
HDMI 2
CVI 1
CVI 2
AV
Side AV
PC

12 TPT1.1A LA 3. Directions for Use
42TA2800 AP OSD tree
Install
Language English
Auto store Start ? Auto store
Please wait
Prog. found
Frequency
Manual store Manual store MHz
Start ?
Prog. no
Finetune
Store Store ?
Stored
Channel setting Channel edit Channel
Skipped Active
Skipped
Channel swap From
To
Exchange Exchange ?
Exchanged
Name edit Channel
Name
Channel sort Sort ? Sorting .....
Sort complete
Factory reset No
Yes
PC MODE
1st Layer 2nd Layer 3rd Layer
Picture
Color temp Normal
Warm
Cool
Brightness
Contrast
Auto adjust Yes
Store ? Yes
No
Manual adjust Phase
Clock
Horizontal
Vertical

13
TPT1.1A LA
3. Directions for Use
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Picture format Full screen
4:3
PIP Size Off
Small
Large
PBP
Input TV
AV1
AV2
Position 1
2
3
4
Sound PC
PIP
Install
Language English
Thai
Arabic
Factory reset No
Yes
TV / AV/ S-VIDEO / HD MODE
1st layer 2nd layer 3rd layer 4th layer 5th layer
Picture
Smart picture Personal
Rich
Nature
Soft
Multimedia
Contrast
Brightness
Color
Sharpness

14 TPT1.1A LA 3. Directions for Use
Color temp Normal
Warm
Cool
Picture format Super zoom
4:3
Movie expand 14:9
Movie expand 16:9
16:9 subtitle
Widescreen
Sound
Smart sound Personal Equalizer
Speech Equalizer
Music Equalizer
Movie Equalizer
Mulitimedia Equalizer
Virtual surround On
Off
AVL On
Off
Features
Timer Clock
Start time
Stop time
Sleep timer
NR On
Off
Auto lock Lock program
Change code Yes
Clear all On
Off
Source list TV
HDMI 1
HDMI 2
CVI 1
CVI 2
AV
Side AV
PC
Install
Language English
Thai
Arabic
Auto store Start ? Auto store
Please wait
Prog. found
Frequency

15
TPT1.1A LA
3. Directions for Use
Manual store Manual store MHz
Start ?
Prog. no
Finetune
Store Store ?
Stored
Channel setting Channel edit Channel
Skipped Active
Skipped
Channel swap From
To
Exchange Exchange ?
Exchanged
Name edit Channel
Name
Channel sort Sort ? Sorting … …
Sort complete
Factory reset No
Yes

16 TPT1.1A LA 4. Mechanical Instructions
Front view
Back view
Step 1. Remove the stand.
Remove the 2 screws as Fig.2.
Fig.3
Fig.2
Fig.1
Fig.6
Fig.7
Fig.4
Fig.5
4. Mechanical Instructions
Index of this chapter:
4.1 Assy/Panel Removal
4.2 Set Re-assembly
4.1 Assy/Panel Removal
Notes: Please put your machine on soft material to avoid to scrape
panel when you disassemble it.
Step 2. Remove the Speaker.
Remove the 5 screws as Fig.3.
Step 4. Remove the Back cover as Fig.4~5.
a. Remove the 28 screws on the bottom side as Fig.4.
b. Remove the back cover as Fig.5.
Step 5. Remove the Key, Side AV, IR board.
a. Remove the 4 screws and disconnect the 3 cables to r
as Fig.5.
emove the
Key, Side AV, IR board
Step 6. Remove the Main Frame.
a. Remove the 12 screws and disconnect 2 cables to remove the Main
Frame as Fig.6.
Step 7. Remove the Scaler and Power board.
a. Remove the 8 screws to remove the MF-LPL-L/R as Fig.7.
b. Remove the 6 screws to remove the VESA-BKT-LR/M as Fig.7~8.
c. Remove the 12 screws to remove the MS-Scaler as Fig.9.
d. Remove the 7 screws and disconnect 3 cables to remove
the Power board as Fig.10.
e. Remove the 18 screws and disconnect 6 cables to remove
the Scaler board as Fig.10.

17
TPT1.1A LA
4. Mechanical Instructions
In warranty, it is not allowed to disassembly the LCD panel, even the
backlight unit defect.
Out of warranty, the replacment of backlight unit is a correct way
when the defect is cused by backlight (CCFL,Lamp).
4.2 Set Re-assembly
To re-assemble the whole set, execute all processes in reverse
order.
Notes:
a. While re-assembling, make sure that all cables are placed
and connected in their original position.
b. Pay special attention not to damage the EMC foams at the
SSB shielding. Check that EMC foams are put correctly on
their places.
Fig.13
Service position
Notes: Please add insulation material between board and panel to
avoid short ciucuit.
Insulation material
Fig.8
Fig.9
Fig.10
Step 8. Remove the Front as Fig.11.Bezel assy
Remove the 33 screws as Fig.11.
a.
Fig.11
Fig.12

18 TPT1.1A LA 5. Service Modes, Error Codes and Fault Finding
5. Service Modes, Error Codes and Fault Finding
index of this chapter:
5.1 CSM
5.2 Factory Mode
5.3 Repair Flow Chart
5.1 CSM
It can display CSM windows message when press 1-2 3-6 5-4 on the button (RC) remote control in normal operation mode.
The following information is displayed on screen:
About error code,Please refer to the table below.
Error code Event
0x01 Audio decoder Error
0x02 IIC bus error
0x03 Tuner error
0x04 NVRAM Error
0x05 Scaler Chip error
CSM Item Contents Remark
1: Set Type 42TA2800/98 Project name
2: Production code BZ000651123456 14 digit production-code(serial number)
3: SW-naming main-processor TA2800 42LPL V1.13G 20070328 AP
SECAM98 Factory Power OFF
SW version(TA2800:project name, V1.13G: software version,
20070328: software release date, SECAM98 Factory Power
OFF: region )
4: Code 1 FF FF FF FF FF Error codes in NVM/EEPROM (5 last logged errors)
5: Code 2 FF FF FF FF FF Error codes in NVM/EEPROM (5 first logged errors)
6: Key (HDCP) Invalid HDMI information whether HDCP-key is valid
7: Digital signal quality ATSC Digital signal level
8: NVM-naming PANEL_LPL_42_WX5 Contents per Panel-type

19
TPT1.1A LA
5. Service Modes, Error Codes and Fault Finding
5.2 Factory Mode
,: Move and change value
: selected
Press MENU or : key to activate OK, SAVE, and EXIT.
It can enter Factory Mode
1. Press" Menu" in normal operation mode to enter OSD.
2. Press "062596+Menu" on the button (RC) remote control in OSD.
3. Press "Menu" again. The screen will appear "FAC" in top right corner.

20 TPT1.1A LA 5. Service Modes, Error Codes and Fault Finding
5.3 Repair Flow Chart
1.No work/LED is off
Check if
power switch is
normal
No Replace Power switch
Yes
Check
IR board CN001
pin1=0V,pin2=3.7V,
pin3=3V,pin4=2.85V
,pin5=5V,pin6
=3.3V
Check IR board
Yes
Check scaler board U102
pin1=14V,pin4=1.22V,
pin7=16V,pin8=5V,
No