Philips LC4.3HE AA Schematic

Published by WS 0670 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 15802
©
Copyright 2006 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
LC4.3HE
Supplement to manual LC4.3E: 3122 785 15270
F_15800_000.eps
290906
Contents Page
1. Technical Specifications, Connections, and Chassis Overview 2
2. Safety Instructions, Warnings, and Notes 3
3. Directions for Use 3
4. Mechanical Instructions 4
5. Service Modes, Error Codes, and Fault Finding 7
6.
Block Diagrams, Test Point Overviews, and Waveforms
Wiring Diagram 9 Block Diagram Video 10 Block Diagram Audio 11 Testpoint Overview Small Signal Board 12 I2C IC Overview 13 Supply Voltage Overview 14
7.
Circuit Diagrams and PWB Layouts Drawing PWB
Side I/O Panel (D)15 16-16 LED and IR Panel (J) 17 18-18 i-Board Panel (HC) 19 20-20 LCD Clock Panel (O)21
8. Alignments 23
9. Circuit Descriptions, Abbreviation List, and IC Data Sheets 26 Abbreviation List 26 IC Data Sheets 28
10. Spare Parts List 32
11. Revision List 38
Technical Specifications, Connections, and Chassis Overview
EN 2 LC4.3HE AA1.

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connection Overview

1.3 Chassis Overview
Notes:
Only information that is related to the iTV module, is published in this manual. For the other information, see the relevant chassis manual (order code on front page).
Some models in this chassis range have a different mechanical construction. The information given here is therefore model specific.
Figures below can deviate slightly from the actual situation, due to the different set executions.
Specifications are indicative (subject to change).
1.1 Technical Specifications

1.1.1 Vision

Display type : LCD WXGA Active
Matrix TFT
Screen size :
- 26HF5473/10 : 26” (66 cm), 16:9
- 32HF7473/10 : 32” (81 cm), 16:9
Resolution (HxV pixels) : 1366 x 768 Contrast ratio : 600:1 Light output (cd/m
2
) : 500 Response time (ms) : 16 (26”), 18 (32”) Viewing angle (HxV degrees) : 176x176 Tuning system : PLL Presets/channels : 125 Tuner bands : VHF
: UHF : S-band : Hyper-band
TV Colour systems : PAL B/G, D/K, I
: SECAM B/G, D/K, L/L’ Video playback : NTSC, PAL, SECAM Supported computer formats : VGA (640x480)
: MAC (640x480)
: SVGA (800x600)
: XVGA (1024x768)
: WXGA (1280x768) Supported video formats : 640x480i - 1fH
: 720x576i - 1fH
: 640x480p - 2fH
: 720x576p - 2fH
: 1920x1080i - 2fH
: 1280x720p - 3fH

1.1.2 Sound

Sound systems : FM, NICAM Stereo,
Virtual dolby surround
Maximum power (W
RMS
) : 2 x 5 (26”)
: 2 x 15 (32”)

1.1.3 Miscellaneous

Power supply:
- Mains voltage (V
AC
) : 100 - 250
- Mains frequency (Hz) : 50 / 60
Ambient conditions:
- Temperature range (°C) : +5 to +40
- Maximum humidity : 90% R.H.
Power consumption
- Normal operation (W) : 110 (26”), 120 (32”)
Dimensions (WxHxD cm) : 80.5x47.7x22.2 (26”)
: 92.4x55x22.2 (32”)
Weight (kg) : 18.8 (26”)
: 22 (32”)
1.2 Connection Overview
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, and Ye= Yellow.

1.2.1 Side I/O connections

Figure 1-1 Side I/O connections
RJ12: DATA1 (HM-Link - In/Out)
1 -LED_in < 0.3 V, active low j 2 -IR_in < 0.3 V, active low j 3-MODE Vcc j 4 -TV Power Status 4.5 to 5 V - TV “On”, < 0.3V -
TV “Stdby”, High impedance -
TV “Off” k 5 -GND Gnd H 6 -IR_out Signal k
RJ45: DATA2 (Xpress Box- In/Out)
1 -+12V +12 V / 1 W k 2 -GND Gnd H 3 - HSYN Signal k 4 - VSYN Signal k 5 - TXD232 Signal 6 - RXD232 Signal 7 - SDA3_IR-OUT Signal k 8 - DCM-POR Signal k 9 - CVBS-terr Signal k 10 - GNDA Gnd H
SVHS (Hosiden): Video Y/C - In
1 - Ground Y Gnd H 2 - Ground C Gnd H 3 - Video Y 1 V
PP
/ 75 ohm j
4 - Video C 0.3 V
PP
/ 75 ohm j
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DATA 1
DATA 2
S-video
AV1 - in
Speaker
Safety Instructions, Warnings, and Notes
EN 3LC4.3HE AA 2.
AV1 Mini Jack: Video 1fH CVBS - In, Audio - In
1 - Audio R 0.5 V
RMS
/ 10 kohm oj
2 - Ground CVBS Gnd oj 3 - Video CVBS 1 V
PP
/ 75 ohm oj
4 - Audio L 0.5 V
RMS
/ 10 kohm oj
Mini Jack: Speaker - Out
- Loudspeaker 8 ohm ok

1.2.2 Rear I/O connections

Rear connections are the same as for the LC4.3E.

1.3 Chassis Overview

Figure 1-2 Chassis overview (both models)

2. Safety Instructions, Warnings, and Notes

See the relevant chassis manual (order code on front page).

3. Directions for Use

See the relevant chassis manual (order code on front page).
B
SMALL SIGNAL BOARD
F_15800_003.eps
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D
SIDE I/O PANEL
E
J
LED & IR PANEL
C
AUDIO AMPL. PANEL
HC
iBOARD PANEL 26”
iBOARD PANEL 32”
(if present)
(if present)
HC
POWER SUPPLY PANEL
KEYBOARD CONTOL
PANEL
Mechanical Instructions
EN 4 LC4.3HE AA4.

4. Mechanical Instructions

Index of this chapter:

4.1 Cable Dressing

4.2 Service Position
4.3 Assy/Panel Removal
4.4 Set Re-assembly
Notes:
Only information that is related to the iTV module, is
published in this manual. For other information, see the relevant chassis manual (order code on front page).
Figures below can deviate slightly from the actual situation,
due to the different set executions.
Follow the disassembling instructions in described order.
4.1 Cable Dressing

Figure 4-1 Cable dressing (26-inch model)

Figure 4-2 Cable dressing (32-inch model)

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Mechanical Instructions
EN 5LC4.3HE AA 4.

4.2 Service Position

First, put the TV set in its service position. Therefore, place it upside down on a table top (use a protection sheet or foam bars).

4.2.1 The Foam Bars

Figure 4-3 Foam bars
The foam bars (order code 3122 785 90580) can be used for all types and sizes of Flat TVs. By laying the plasma or LCD TV flat on the (ESD protective) foam bars, a stable situation is created to perform measurements and alignments. By first placing a mirror flat on the table under the TV you can easily see if something is happening on the screen.

4.3 Assy/Panel Removal

4.3.1 Rear Cover

Warning: Disconnect the mains power cord before you remove
the rear cover.
1. Remove the screws that secure the rear cover.
2. Lift the rear cover from the cabinet cautiously. Make sure that wires and other internal components are not damaged during cover removal.

4.3.2 Side I/O & Keyboard Panel Removal

Figure 4-4 Side I/O & keyboard panel
1. Disconnect cables [1] from the panel (incl. the ground cable).
2. Release the two fixation clamps [2] and lift the panel out of the bracket.

4.3.3 i-Board Removal

Figure 4-5 i-Board
1. Disconnect all cables [1] from the i-Board.
2. Untwist the fixation lip [2].
3. Take out the i-Board.
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1
2
2
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1
Mechanical Instructions
EN 6 LC4.3HE AA4.

4.3.4 Clock Panel Removal

Figure 4-6 Clock panel
1. Disconnect cable [1] from the Clock panel.
2. Remove the mounting crews [2] from the Clock panel.
3. Take out the Clock panel.

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.
Notes:
While re-assembling, make sure that all cables are placed and connected in their original positions. See Figure "Cable dressing". Also make sure that the anti-static copper foils are not damaged and that they make good electrical contact with the metal frame. Be careful with the fragile LVDS cable.
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2
1
Service Modes, Error Codes, and Fault Finding
EN 7LC4.3HE AA 5.

5. Service Modes, Error Codes, and Fault Finding

Index of this chapter:

5.1 Hotel Mode, Service Modes

5.1 Hotel Mode, Service Modes

5.2 Error Codes

5.3 i-Board and LCD Clock
5.1 Hotel Mode, Service Modes

5.1.1 Hotel Mode

Before the service modes can be activated, the set needs to beswitched into normal consumer mode (MTV-Mode) first. Use an iTV setup remote control (type: RC2753/01, 12nc: 3139 228
88782) to key in the code ‘024995’ directly followed by the MENU button. The text messages “TV Is Now In MTV Mode” and “Please Do A Cold Start !” appears on the screen. Disconnect the set for a few seconds from the mains supply, reconnect the set to the mains supply again. The set is now in the normal consumer mode (MTV-Mode).
After repair, place the set into hotel mode (iTV-Mode) again. Key-in the same code on the remote control as described above. The text message “TV Is Now In ITV Mode” appears. A cold start must be performed as described above. The set is now in the hotel mode (iTV-Mode) again.

5.1.2 Service Modes

Only when the set is in normal consumer mode (MTV Mode), all service modes can be accessed. Refer to the main chassis manual for further explanation of the service modes.
5.2 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.

Table 5-1 Error code overview

Error Error Description Check Item Diagram
0 No Error 1 Mis-match of TV (Hercules) SW and
Scaler SW
Software versions
N.A.
2 +12V from PSU error PSU A 3 Plasma I2C error (only for plasma sets) N.A. N.A. 4I2C error while communicating with the
Genesis Scaler
7801 B7 + B8
5 +5V protection 7752 B6 6 General I2C error; communication
between ADC, analogue tuner, and/or Columbus I2C failed
1102, 7L01, 7M00
B1 + B18 + B19
7I2C error while communicating with
ADC
7L01 B18
8I2C error while communicating with the
Scaler EEPROM
7C01 B11
9I2C error while communicating with the
Hercules EEPROM (NVM for TV). Remark: when the Hercules EEPROM is defective, the Hercules should operate with its default values.
7217 B2
10 I2C error while communicating with the
PLL tuner
1102 B1
11 I2C error while communicating with the
3D combfilter IC-7M00 (Columbus)
7M00 B19
12 I2C error while communicating with i-
Board uP (only iTV sets)
N.A. N.A.
13 I2C error while communicating with the
HDMI decoder IC-7D03 (only for NAFTA and AP)
N.A. N.A.
14 Read-write error with the Scaler
SDRAM
7B01 B10
15 I2C error while communicating with the
OTC
--
16 I2C error while communicating with
EPLD or Pacific III
7N02 B20 + B21
17 I2C error while communicating with the
Digital Module (only for digital sets)
N.A. N.A.
18 IBO hardware error (only for digital
sets)
N.A. N.A.
Service Modes, Error Codes, and Fault Finding
EN 8 LC4.3HE AA5.

5.3 i-Board and LCD Clock

5.3.1 General

Circuit diagram HC (chapter 7) shows the schematic diagram of the i-Board together with IO for LC4.xHx. The main microprocessor is the P89C664, a 64K flash microprocessor from Philips. In some sets on the market, the P89C668 (96K) microprocessor is used. There are 3 HEF switches (U2, U3, U4) which select the different interface control protocols to work with the external service providers. U7 is a RS232 IC.
The iTV i-Board is constantly powered by 5V, even when the TV set is in its Stand-by mode or switched off by using the power button on the local keyboard. The constant power supply enables the i-Board to communicate constantly with the head­end server of the service provider. In this chassis, only 3V3 is available and this is converted to 5V.

5.3.2 Checking the i-Board

1. Check the voltages across C1 (= 3V3) and C4 (= 5V). If these are correct, the 3V3 to 5V converter is working properly.
2. Check the clock signal on pin 2 (SCL), and data line pin 3 (SDA) of the i-Board microprocessor P89C664 with an oscilloscope. If the communication between the microprocessor P89C664 and the TV scaler board is working correctly, the iTV OSD menu will appear when the menu button on the setup remote control is activated.
3. Check pin 4 of the microprocessor P89C664, it should be low when the microprocessor is operating normally. Pin 4 goes to the “high” state and causes the microprocessor to “hang” if the supply voltage drops below 4.5 - 4.75V. U6 is used to reset the microprocessor and to monitor the supply voltage.
4. Check (using an oscilloscope) if the sine wave (16 MHz) is present on pin 14 and 15 of the microprocessor P98C664 (internal Xtal oscillator).

5.3.3 Checking the LCD Clock

1. If the LCD clock is not working correctly, first check the error status of the clock module. In the iTV mode, press the RECALL button on the iTV remote control in order to show the status of the clock module.
2. If the LCD clock is not displaying the correct time, check if there is a Teletext signal available (some TV programs do not carry Teletext information). Note: The LCD clock is connected directly to the i-Board microprocessor P89C664. All Local Time information downloaded via Teletext is captured by the Hercules IC on the main board, relayed to the i-Board microprocessor P89C664 and displayed via the LCD clock module. The LCD clock itself does not keep track of real time.
Block Diagrams, Test Point Overviews, and Waveforms

6. Block Diagrams, Test Point Overviews, and Waveforms

Wiring Diagram

WIRING
9LC4.3HE AA 6.
RIGHT
SPEAKER
INVERTER
INVERTER
14P
8520
X530
X520
12P
14P
POWER
SUPPLY
8520
AC POWER
INLET
POWER
IN
8002
3P
X220
X200
12P
X002
2P3
LCD CLOCK
O
(OPTIONAL,
not for NAFTA region)
4P
1442
8903
I-BOARD
HC
8400
LVDS CONNECTION
TO SCREEN
8P06
30P
3P
J10
J2
J1
4P
4P
C
CLASS D
1003
AUDIO AMPLIFIER
8J02
30P
31P
1P06
SSB
B
Digital A/V Analog A/V Analog A/V
VGA
12P
1J02
3P
1J03
3P
8403
J3 5P
1002
9P
8J03
4P
1001
3P
1J03
1440
5P
8903
J6
8P6
8J04
1JO4(1M52)
TUNER
9P
1103
4P
J4
24P
8407
6P
1K00(1M21)
12P
1K01(1M06)
3P
1K02
8406
8K01
8684
INVERTER
12P
D
12P
J
LEFT
SPEAKER
SIDE AV
1301
24P
1321
1340
5P
5P
1540
IR/LED/LIGHT SENSOR
8870
3P
KEYBOARD CONTROL
E
1684
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Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Video

VIDEO
TUNER & VIF
B1
RF
IN
SCART ANALOG IO
B15
1G02
SCART 2
1
21
EXT 2
1G01
SCART 1
1
21
EXT 1
SIDE AV
D
1080
1
5
S-VHS
2
SVHS
SYNC INTERFACE
B3
1102 UV1318S
20
15
8
19
19
20
16
15
11
7
8
+5SW_a
67
TUNER
4
5
SCL
SDA
STATUS_2
SC1_CVBS_IN
STATUS_1
FRONT_YCVBS_IN
3
4
+VTUN
1
SC1_FBL_IN
CVI_Pr_IN
CVI_Y_IN
CVI_Pb_IN
FRONT_C_IN
IF-TER
11
3104
B2
B2
1104
2106
2
F108
1106
2
SC2_Y_IN
FRONT_Y_CVBS_IN
SC2_C_IN
FRONT_C_IN
AV2_DMMI_SW
B2
7G05
EF
7G03
EF
4G14
4G15
4G17
4G16
B17
1K01
1321
2
2
4
4
SC1_CVBS_RF_OUT
B2
B3
B3
B2
7
VIF1
8
VIF2
RF_AGC
SIF1
7
SIF2
8
7G10
2
1
12
13
9
SC2_CVBS_MON_OUT
Present only for
non DVB sets
SC1_CVBS_RF_OUT
SC1_CVBS_IN
SC1_FBL_IN_1
SC1_CV1_DMMI_R_Pr_IN
SC1_CV1_DMMI_G_Y_IN
SC1_CV1_DMMI_B_Pb_IN
SIDE CONNECTIONS
FRONT_YCVBS_IN
FRONT_C_IN
Hsync_SDTV
Vsync_SDTV
HERCULES
7217 TDA15021H
24
25
31
DC
29
30
14
SC2_AV3_Y_IN
15
4G18
B7
1440
AC
AGC
Detect
SC2_AV3_C_IN
4G13
SC2_OUT_SW
HC
J3
1
1
2
2
3
3
4
4
Sound
Traps
QSS Mixer
AM Demod.
CVBS_COMB
SC2_Y_IN_1
7219
14
B3
B2
B13
B13
B13
I-BOARD
Q10
10LC4.3HE AA 6.
MUX-SYNC INTERFACE
B13
7208
RO
85
G_OSD
Vertical & East-West Geometry
Sync Sep
H-OSC H-Shift
H-Drive
CVBS/Y
B_OSD
RO
GO
BO
Fast Blanking
VDRB
HOUT
GO
86
BO
87
B3
22
VSYNC
HOUT
67
CVBS1
c
cvbs/y
HERCULES
Dig. 2H/4H
Combfilter
Yint
Y Delay Adj.
Chroma
Uint
PAL/NTSC/
SECAM
Decoder &
Vint
Baseband
Delay
RGB/Pr Pb Insert
YUV Interface
INSSW3
R/Pr-3
G/Y3
B/Pb-3
77 78 79 80
SAT
SCAVEM
on text
YOUT
74 75 76 70 71 72
Video
Switch
+
Control
QSS/FM
AM
59
7206
EF
64
51
52
58
13
48
12
9
55
43
UOUT
Skin Tone
U/V Tint
Saturation
Peaking SCAVEM U/V Delay
VOUT
RGB Matrix
Blue & Black
Strech
Gamma Corr.
R_OSD
YUV
YUV in/out
H/V
VIN
UIN
YIN
B18
N.C.
INTF_V_OUT
INTF_U_OUT
SC1_R_CVI_Pr_IN
SC1_G_CVI_Y_IN
SC1_B_CVI_Pb_IN
SC1_FBL_IN_1
B15
B13
B13
B13
SIDE AV
D
+5VA
Q2
CVBSTERR
+5VA
Q11
HSYNC
+5VA
Q8
Q9
VSYNC
1301
J4
1
1
2
2
4
4
INTF_Y_OUT
CVBSterr
HSYN
VSYN
1303
9
3
4
TO SMART CARD
EXPRESS BOX
7L01
7L02
B14
CONNECTOR
EF
7209
7210
EF
EF
SYNC INTERFACE
7436-2
Vsync_SDTV
43
7436-1
Hsync_SDTV
21
EF
EF
ADC
7L03
SDA
SCL
7L04
MST9883C 30 31
54
EF
43
48
56
57
DIGITAL IO
1F00
27 26 25
H_PC
28
C5
C3 C4
C1 C2
24
18
916
17
DVI
V_PC
8
1 2 6 7 9
10 11 14
+5VSWI
15 17 18
23 24 16
A/D
CONV.
FE00
FE01
FE02
SC1_R_CVI_Pr_IN
B13
SC1_G_CVI_Y_IN
B13
SC1_B_CVI_Pb_IN
B13
B14
B14
B3,B13
B14
B3
B14
B3,B13
B14
B3
COL_Di(1-7)
COL_YA(1-7)
SC1_CV1_DMMI_R_Pr_IN
B15
SC1_CV1_DMMI_G_Y_IN
B15
SC1_CV1_DMMI_B_Pb_IN
B15
B13
B13 B13
B13 B13
R_SDTV
G_SDTV
B_SDTV
BINA|Pb
GINA|YINA
RINA|Pr
Vsync_SDTV
V_PC
H_PC
Hsync_SDTV
GINA|YINA
RX2-IN RX2+IN SCL_DVI
SDA_DVI RX1-IN RX1+IN
RX0-IN RX0+IN RXC+IN RXC-IN HOTPLUG
BINA|Pb
RINA|Pr
27
3
7
25
1
5
11
15
1
1
2
12
13
13
12
7E01
7E02
7E03
1
3
5 2
B10
B19
7E00
R-PR-ADC
17
G-Y-ADC
14
B-PB-ADC
11
I_PC_HD_SEL
9
12
14
2
PC_HD_SEL
19
15
14
10,11
SDRAM
7B01 K4D263238F
1Mx32x4
COLUMBUS
(Dig. PAL/NTC Comb)
7M00 T6TU5XBG
COLUMBUS
DIGITAL COMB
7M01 MSM56V16
512Kx16x2
14
15 4
9
R_PR+
B_PB+
7E04
8
5
4
1
SD_HD_SEL
+2V5_DDR
95
SDRAM
FILTER
COL_D
COL_A
DRAM
SC1_R_CVI_Pr_IN
SC1_G_CVI_Y_IN
SC1_B_CVI_Pb_IN
RGB|CVI_HDA_SEL
G_Y+
AVSY NC
AHSYNC
SOG
PC_HD_DET
B7
FSDATA
FSADDR
COL_Do(1-7)
COL_YB(1-7)
B7
B7
B2,B13
B2,B13 B2,B13
AE10
SCALER
7801 GM1501
C3
D2
C2
B2
L3
L4
B10 A10
N4 N3 B9 A9
B8
A8 AL B6
ANALOG
INPUT PORT
FRAME STORE
CONTROL
DVI/HDMI
INPUT PORT
SCALER
GRAPHIC
ZOOM
OUT BLENDER
OSD CONTROLLER
BRIGHTNESS/CONTRAST/HUE/SAT
VIDEO ZOOM
UART
INTERFACE
MICRO
CONTROLLER
INTERNAL
RAM
B9
EXTERNAL
ROM
INTERFACE
SCALER
DISPLAY
TIMING
GEN.
OCMADDR
AE16 AF16
AE15 AF15
AE14 AF14
AF12 AF11
AF13 AE12
B11
OCMDATA
B20
FLASH/CONTROL
7C00 MX29LV040QC
FLASH
ROM
512Kx8
EPLD
TXB0­TXB0+
TXB1­TXB1+
TXB2­TXB2+
TXB3­TXB3+
TXBC­TXBC+
OR
TXB0+ TXB0­TXB1+ TXB1­TXB2+ TXB2­TXB3+ TXB3­TXBC+
TXBC-
7N02 EP1C12F256C8N
4N03 4N01
4N07 4N05
4N11 4N09
4N15 4N13
4N19 4N17
Only for sets with
PIXEL PLUS
7N04 THC63LVDF84B
LVDS
INTERFACE
RECEIVER
RGB
EPLD
PIXEL+
PROCESSOR
SD_HD_SEL H H H H H H
PC_HD_DET H H H H L H
RGB|CVI_HDA_SEL L H L L L L
EPLD
B21
LVDSAn LVDSAp
LVDSBn LVDSBp
LVDSCn LVDSCp
LVDSDn LVDSDp
LVDSCLKn
LVDSCLKp
7P02 THC63LVDM83R
LVD S TRANS­MITTER
RGB
OR
LVDS_VCC
LVDSA­LVDSA+
LVDSB­LVDSB+
LVDSC­LVDSC+
LVDSD-
LVDSD+
LVDSCLK-
LVDSCLK+
LVDS_VCC
LVDSA­LVDSA+
LVDSB­LVDSB+
LVDSC­LVDSC+
LVDSD­LVDSD+
LVDSCLK-
LVDSCLK+
LVDSAn LVDSAp
LVDSBn LVDSBp LVDSCn LVDSCp
LVDSDn
LVDSDp LVDSCLKn
LVDSCLKp
1P07
1P06
HDPCSide-AVEXT2EXT1TV
F_15800_016.eps
1 11
12 13 14 15 16
17 18 19 20 24 25 26 21 22
1 11
10 12 14 13 15
19 18 20 27 26 28 22 21 23
281105
TO DISPLAY (LC4.8 LC4.9)TO DISPLAY (LC4.3)
Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Audio

AUDIO
TUNER & IF
B1
1102 UV1318S(D)
RF IN
SCART ANALOG IO
B15
1G01
1
21
EXT 1
SCART 1
1G02
1
21
EXT 2
SCART 2
SIDE AV
D
1376
AUDIO
IN
DIGITAL IO
B14
PC
AUDIO
IN
1F01
6
2
6
2
IFOUT
TUNER
4
5
SCL
SDA
SC1_COMP_AV1_L_IN
SC1_COMP_AV1_R_IN
L_FRONT_IN
R_FRONT_IN
2
2 4 3 7
11
SEL_IF_SDM
B2
SC2_L_IN
SC2_R_IN
F108
IF-TER
7101
2106
6104
1321
4110
2
3
4G11
4G12
B17
1K01
(1M06)
66
88
1106
7
8
SC1_COMP_AV1_L_IN
SC1_COMP_AV1_R_IN
SIDE CONNECTORS
FRONT_L_IN
FRONT_R_IN
SIF1
SIF2
SC2_L_IN
SC2_R_IN
AudioIN2L
AudioIN2R
HERCULES
B2
7217 TDA15021H
29
30
33
34
35
56
57
49
50
53
54
AD Conv.
Std Stereo
Decoder
AUDIO
SELECT
ADC/DAC
QSS Mixer
AM Demod.
AM
QSS/FM
I2S
Processor
AUDIO
CONTROL
Vol/Treb/
Bass
Features
DACs
11LC4.3HE AA 6.
D
1321
7001 TDA8931T
COMPARATOR
7
4
IN+
7000 TDA8931T
COMPARATOR
7
4
IN+
SIDE AV
HEAD_PH_L
HEAD_PH_R
1G02-1
3
1
1G01-1
3
1
POWER
POWER
OUT
HVPI
OUT
HVPI
7307 TDA1517ATW
2
6
1
21
EXT 2
SCART 2
1
21
EXT 1
SCART 1
1F01
1001
4
3
2
1
RIGHT
SPEAKER
LEFT
SPEAKER
BATHROOM
SPEAKER
16
13
16
13
5007
5006
5306
1
5305
7
AUDIO PROCESSING
B5
4211
61
60
62
63
36
37
4212
AUDOUTLSR
AUDOUTLSL
OUT_MUTE
OUT_MUTE
SOUND-ENABLE
2
6
7602 74HC08PW
3
6
8
7202
MUTE
7201
MUTE
7601 TS482ID
OUT_MUTE
2
&
1
&
5 9
&
10
B16
1J04
1
7
7606
MUTE
HP_DET_R_DC_1 SOUND_ENABLE
POWER_DOWN EXT_MUTE
SC2_L_MON_OUT
SC2_R_MON_OUT
SC2_L
SC2_R
SC1_L_RF_OUT
SC1_R_RF_OUT
SC1_L
SC1_R
AUDIO AMPLIFIER
C
(CLASS-D)
1002
33
11
88
B17
HP_DET_R_DC_1
B2
B16
B2
B15
AUDIO-R
AUDIO-L
SOUND-ENABLE
7004
INVERTER
SIDE CONNECTORS
1K01
HP_LOUT
HP_ROUT
10 10
12 12
11 11
SCART ANALOGUE IO
SC2_L_MON_OUT
SC2_R_MON_OUT
SC1_L_RF_OUT
SC1_R_RF_OUT
PHASE
CONTROL
IR LED PANEL
J
6541
GND
7542
VS
OUT
+5VA
6540B
6540A
Green
Red
7540
3544
7541
3540
PC-TV-LED
IR
+5VA
LED-SEL
D
1540
44
55
22
33
11
SIDE I/O + CONTROL
To Smart Card
Express Box
1340
RC_IR
RD_GR_LED
LED_CTRL
1302
LEDIN_CLK
1
IRIN_DATA-IN
2 3
MODE
4
STATUS_DATA - OUT GND
5 6
IR_OUT
+5V
LEDIN_CLK IRIN_DATA-IN MODE STATUS_DATA - OUT GND IR_OUT
LED_CTRL
RD_GR_LED RC_IR
+5V
HC
1301
11 22 33 44 55
66 17 17 20 20 21 21 22 22 23 23
I-BOARD
J4
LEDIN_CLK_TXD_SCL1 IR_IN_DATA-IN_RXD_SDA1 MODE STATUS_DATA_OUT
IR_OUT
PC_TV_LED_OUT
LED_SEL_OUT
RC_IR
U5 P89C664
9 18
MICRO
13
CONTR.
11 1
10
40
+5V
CONTR.
See Blockdiagram
I²C
PC_TV_LED
+3V3STBY
LED-SEL IR_IN_TV
LIGHT-SENSOR
15
4
4
U4 HEF4053BT
MULTI
PLEX
U3 HEF4053BT
MULTI
PLEX
B17
1K00
J6
66 55 44 33 22 71
B3
E
Channel+
Channel­Volume+
Volume-
Powe r
SIDE CONNECTORS
+3V3STBY
SYNC INTERFACE
+3V3STBY
+5VSW
PC-TV-LED
LED-SEL
3431
6430
KEYBOARD CONTROL
1309
KB
1310 1311 1312 1313
Menu
1314
7430
1684
LIGHT-SENSOR
1K02
22
KEYBOARD
HERCULES
B2
7217 TDA15021H
SEL_IF_SDM
114
107
HERCULES
IR
97
115
120
116 119
102
111 122
127
10
11
4204
4205
SERVICE
SMD STATUS_1 STATUS_2
EXT_MUTE
SOUND-ENABLE
SC_STANDBY
AV2 _DMMI_SW
1202
B15
B1
B3
B3
B5
B5
B6
B15
F_15800_017.eps
260906
Block Diagrams, Test Point Overviews, and Waveforms

Testpoint Overview Small Signal Board

F101 C1
F102 D2 F103 C1 F104 D2
F105 D1 F106 D2 F107 C1
F108 C2
F109 C2 F110 B2 F111 B2 F112 B2 F113 B2 F114 C2 F115 D2 F116 D2
F117 D2 F201 A2 F202 A2 F203 A2 F204 B3 F205 B2 F206 B2 F207 B2 F208 B2 F209 B2 F210 C2 F211 A2 F212 A2 F213 A2 F214 A2 F215 A2
F216 B3 F218 A2 F219 A2
F220 A3 F221 A3
F222 B2 F223 B2 F224 A2 F225 A3 F226 A3 F227 C3 F228 A3 F229 B2
F230 A3
F231 A2 F232 B3
SERVICE TESTPOINTS
F233 B3 F234 B3 F235 B3 F236 C3 F237 B2 F238 B2 F239 B2 F240 B2 F241 B3 F242 B2 F243 B2 F244 B2 F245 A2 F246 B2 F247 A2 F248 B2
I618
F103
I602
F249 B2 F250 B3 F501 A2 F502 A2
F503 A2 F504 A2
F505 A3 F601 A1 F602 A2 F603 A1 F604 A2 F605 A2 F700 A6 F701 A5 F710 A5 F736 A3
I603
F604
F108
F102
F737 A3 F738 A3
F743 B3
F754 A5
F755 A6 F800 B7 F801 B6 F802 C5 F803 B5 F804 B5 F900 C5 F901 C5 F902 C6 F903 C5 F904 C6 F905 B6
F605
F503
F104
F906 B6 F907 B5 F908 C5 F909 C5 F910 C6 FB01 B7 FC00 B5 FC01 B5 FC02 B5 FC03 B5 FC04 B5 FC05 C5 FC06 B5 FC07 B4 FC08 B5 FC09 B5
3139 123 6093 .1
FC10 B4 FD00 C7 FD01 D7 FD02 D7 FD03 D7 FD04 C7 FD05 C6 FD06 C6 FD07 C7 FD08 C7 FD09 C7 FD10 C7 FD11 D7 FD12 C7 FD13 C7 FD14 C7
F504
FD15 C7 FD16 C7 FD17 B6
FE00 C5 FE01 C5 FE02 C4
FE03 B5 FE04 D5 FE05 C5 FE06 D5 FE07 B7 FE08 C4 FE09 C5
FE10 C4
FE11 C5
FE12 C5
I298
FE13 C5
FF00 D6 FF01 D6 FF02 D4 FF03 D7 FF04 D7 FF05 D7 FF06 D6 FF07 D6 FF08 D3 FF09 D7 FF10 D6 FF11 D6 FF12 D6 FF13 D6 FG00 D4
F220
F221 I218
FG01 D4 FG02 D3 FG03 D4 FG04 D3 FG05 D3 FG06 D3 FG07 D3 FG08 D3 FG09 D3 FG10 D2 FG11 D3 FG12 D2 FG13 D2 FG14 D6 FG15 D5 FG16 D6
F736
F737
F738
FG17 D6 FG18 D5 FG19 D5 FG20 D5 FG21 D5 FG22 D5 FG23 D4 FG24 D3 FG25 D3 FG26 D5 FG27 D5 FG28 D5 FG30 D5 FG32 D3 FG33 D3 FG34 D3
I733
FG35 D3 FG36 D4 FG37 D3 FG38 D3 FG39 D4 FG40 D7 FG41 D3 FG42 D4 FG43 D4 FG44 D4 FG45 D4 FG47 D4 FG48 D4 FG49 D4 FG50 D4 FG51 C2
FG53 D4 FG54 D4 FG56 D4 FJ00 A7 FJ01 A5 FJ02 A4 FJ03 A5 FJ04 A5 FJ05 A4 FJ06 A4 FJ07 A5 FJ08 A4 FJ09 A2 FJ10 A2 FJ11 A4 FJ12 A2
12LC4.3HE AA 6.
FJ13 A2 FJ14 A2 FJ15 A7 FJ16 A7 FJ17 A7 FJ18 A7 FJ19 A7 FJ20 A7 FJ21 A5 FJ22 A5 FJ23 A5 FJ24 A5 FJ25 A5 FJ26 A5 FK00 B1 FK01 B1
FE10
FK02 B1 FK03 B1 FK04 B1 FK05 B1 FK06 B1 FK07 C1 FK08 C1 FK09 C1 FK10 B1 FK11 A1 FM01 C4 FM02 C4 FM03 C4 FM04 C4 FM05 C4 FN01 A6
FE02
FN02 A6 FN03 A6 FN04 A7 FN05 A7 FN06 A7 FN07 A7 FN08 A7 FN09 A7 FN10 A7 FN11 B6 FN12 A6 FN13 A6
FN14 A6 FN15 A6
FN16 A6 FN17 A6
FE12
FE13
FE01
FE00
FN18 B6 FN19 B5 FN20 A7 FN21 A7 FN22 A7 FN23 A7 FN24 A6 FN25 B6 FN26 A7 FN27 A7 FN28 A7 FN29 A7 FN30 A7 FN31 A7 FN32 A7 FN33 A7
FN34 A7 FN35 A7 FP01 A6
FP02 A6
FP03 A6
FP04 A6 FP05 A6
FP06 A6 FP07 A6 FP08 A7 FP09 A7 FP10 A7 FP11 A7 FP12 A7 FP13 A6 FP14 A7
F710 F754
F701
FP15 A6 FP16 A6 FP17 A7 I101 D2 I102 C2 I103 C2 I104 C2 I105 C2 I106 C2 I107 C2 I108 C2 I109 C2 I110 C2 I111 C1 I112 D2 I113 D2
F700
I902
I201 A2 I202 A2 I203 B2 I204 B2 I205 B2 I206 B2 I207 B2 I208 B2 I209 B2 I210 A3 I211 A3 I212 A3 I213 A2 I214 B2 I215 A2 I216 B2
I217 B3
I218 A3
I219 B3 I220 B3 I221 A2 I222 A2 I223 A2 I224 A3 I225 A2 I226 B2 I227 B2 I228 B3 I229 B2 I230 A3 I231 B2 I232 A2
FP02
FP05
FP04
I233 B2 I234 B2 I235 B2 I236 B2 I237 B2 I238 A2 I239 A3 I240 A3 I241 A2 I242 A2 I243 A3 I244 B3 I246 A3 I247 A3 I248 A3 I254 C3
FN14
FN15
I255 B3 I256 B3 I257 B3 I258 B2 I259 B3 I262 B2 I264 A2 I265 B3 I266 B3 I267 B3 I268 B3 I269 A2 I270 B3 I271 A3 I272 B3 I273 C3
I274 A1 I275 A3 I277 A3 I278 A3 I283 B3 I284 B3 I285 B3 I288 B3 I289 A2 I290 A2 I291 A2 I292 A2 I293 A2 I294 A2 I297 A1
I298 B3
I430 A1 I440 B3 I443 B3 I449 A3 I450 A3 I451 A3 I452 A3 I453 A1 I454 A1 I501 A3 I502 A3 I503 A2 I504 A2 I505 A2
I602 A1 I603 A2
I900
I604 A1 I605 A2 I606 A2 I607 A1 I608 A1 I610 A1 I611 B1 I612 A1 I613 A1 I614 A1 I615 A1 I616 A1 I617 A2
I618 A1
I619 A1 I705 A3
F_15270_036.eps
I706 A4
I708 A5
I709 A5
I710 A4
I711 A4
I712 A4
I713 A4
I714 A4
I715 A4
I716 A4
I731 A4
I732 A3
I733 A3
I734 A3
I735 A3
I736 A3
250505
I740 B3 I741 B3 I742 B3 I747 A5 I748 A5 I749 A5 I750 A6 I751 A5 I752 A5 I753 A5 I754 A5 I755 A5 I756 A6 I757 A5 I758 A5 I759 A5 I760 A6 I800 C6 I801 C5 I802 B5 I803 B5 I804 B6 I805 B5 I806 B5 I807 B5 I808 B5 I809 B5 I810 B5 I811 C7 I812 C6 I813 B7 I815 C6 I816 C6 I817 C6 I818 C4 I819 B5 I820 B6 I821 B5 I822 B5
I900 B7
I901 B6
I902 C6
I903 C6 I904 B6 I905 B6 I906 C5 IA00 C6 IA03 B4 IA05 C6 IA06 C6 IA07 C6 IA08 B5 IA09 B6 IB02 B7 IB03 B7 ID00 C7 ID01 D7 ID02 C7 ID03 C7 ID04 C7 ID05 C7 ID06 C7 ID07 C7 ID08 C7 ID09 C7 ID10 C7 ID11 C7 ID12 C7 ID13 C6 ID14 C6 ID15 C7 ID16 C7 ID17 C7 ID18 C7 ID19 C7 ID20 C7 ID21 C7 ID22 C6 IE00 D4 IE01 C4 IE02 D5 IE03 C6 IE04 C5 IE05 C5 IE06 C4 IE07 C4 IE08 C4 IE09 C5 IE10 C5 IE11 C5 IE12 C5 IE13 D5 IE14 D4
IE15 D4 IE16 C4 IE17 C4 IE18 C4 IE19 D5 IE20 D5 IE21 D5 IE22 D5 IE23 C5 IE24 C5 IE25 D5 IE26 D5 IE27 C5 IE28 C4 IE29 C4 IE30 C4 IE31 C5 IE32 C5 IE33 C5 IE34 C5 IE35 D5 IE36 C5 IE37 C5 IF00 D7 IF01 D7 IF02 D7 IF03 D7 IF04 D6 IF05 D6 IF06 D7 IF07 D7 IF08 D7 IF11 D6 IF12 D6 IF13 D7 IF14 D7 IF15 D6 IF17 D7 IF20 D7 IF21 D4 IF22 D6 IF23 D6 IG00 D4 IG01 D4 IG02 D4 IG03 D4 IG04 D3 IG05 D3 IG06 D3 IG07 D3 IG08 D3 IG09 D3 IG10 D3 IG11 D3 IG12 D3 IG13 D2 IG14 D6 IG15 D5 IG16 D6 IG17 D5 IG18 D6 IG19 D5 IG20 D6 IG21 D5 IG23 D5 IG24 D5 IG25 D5 IG26 D5 IG27 D4 IG28 D3 IG29 D3 IG30 D3 IG40 D5 IG42 D5 IG43 D4 IG46 D5 IG47 D5 IG49 D4 IG50 D4 IG52 D5 IG53 D5 IG54 D5 IG55 D5 IG56 D5 IG57 D5 IG58 D5 IG59 D4 IG60 D3 IG61 D2 IG62 D2 IG63 D3 IG64 D3 IG67 D3
IG69 D3 IG73 D4 IG75 D5 IG76 D6 IG78 D5 IG79 D5 IG80 D5 IJ01 A3 IJ02 A3 IJ03 A4 IJ04 A3 IJ05 A3 IJ06 A3 IJ07 A3 IJ08 A3 IJ09 A3 IJ10 A3 IJ11 A3 IJ12 A3 IJ13 A3 IK00 A1 IK01 A1 IK02 A1 IK03 A1 IK16 A1 IK17 B1 IK18 B1 IL01 B3 IL02 B3 IL03 B3 IL04 B3 IL05 B3 IL06 B3 IL07 B3 IL08 B3 IL09 B3 IL10 B4 IL11 B4 IL12 B4 IL13 B4 IL14 B4 IL15 B4 IL16 C3 IL17 B3 IL18 B3 IL19 B4 IM00 C4 IM01 C3 IM03 B4 IM04 B4 IM06 B4 IM07 B4 IM08 B4 IM09 B4 IM10 B3 IM11 C3 IN01 A6 IN02 A6 IN03 A6 IN04 A6 IN05 A6 IN06 A6 IN07 B6 IN08 A6 IN09 A6 IN10 A6 IN11 A6 IN12 A6 IN13 B6 IN14 A6 IN15 B6 IN16 A7 IN17 A7 IN18 A7 IN19 A6
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