Panasonic TH-42PF20E / TH-42PF20ER Service Manual ▷ View online
TH-42PF20E / TH-42PF20ER
37
11 Block Diagram
11.1. Main Block Diagram
(LED:9TIMES)
(LED:10TIMES)
(LED:2TIMES)
(LED:5TIMES)
(LED:4TIMES)
(LED:10TIMES)
(LED:11TIMES)
(LED:8TIME)
(LED:13TIMES)
(LED:7TIMES)
COLD
HOT
(LED:2TIMES)
(LED:6TIMES)
(LED:10TIMES)
(LED:11TIMES)
(LED:6TIMES)
(LED:4TIME)
(LED:7TIMES)
(LED:8TIMES)
(LED:3TIMES)
(LED:2TIMES)
A+9V
DCDC
A13
DCC_SOS
EEPROM
L,R-CV
VSCAN GEN.
RESET
A5
VIDEO DATA
VIDEO DATA
SS21
EEPROM
DCDC
IP CONV.
ASIC OUTB
SC-BOARD
ENERGY RECOVERY
SOS DETECT
L,R
F+15V
VIDEO
PROCESSOR
VAD GEN.
SM42
+3.3V(P)
SCAN CONTROL
MAIN SW2
PANEL SOS
SOUND
+15V
PANEL READY
RELAY
PS SOS4
DS_SOS
HDMI
DECODER
R,G,B
TTL CONV.
SLOT SOS
A
A1
L+/-
P2
A+5V
VIDEO SIGNAL
DECODER
DCDC
VIDEO PROCESSOR
SYNC SIGNAL
SELECT
+2.5V(P)
LAN+3.3V
STB+5V
POWER SW
DS1
POWER SWITCH
P+3.3V
P+5V
KEY SWITCH
C25
P+15V
TERMINALS
SM41
VSUS
SOS6_SC1
RECTIFIER
RECTIFIER
PROCESS
VOLTAGE
RECTIFIER
SCAN OUT
POWER
FACTOR
CONTROL
SM
LVDS RX
P+3.3V
DATA
DRIVER
Vda
PLASMA AI
A+3.3V
SUSTAIN CONTROL
CONTROL SIGNAL
A20
DATA DRIVER
RS232C
SUSTAIN CONTROL
H/V SYNC CONTROL
SCAN CONTROL
A+15V
C1
CPG with SS
SUB-FIELD PROCESSOR
VIDEO DATA
DATA DRIVER (LEFT)
VIDEO DATA
P7
DATA
DRIVER
PANEL SOS
PB32
VSUS_CON_S0
SOS6_SC1
PB34
PANEL MICOM
PB33
L,R-HA
HDMI SW
HD,VD-PC
A+1.8V
C21
PANEL READY
R+/-
A+1.8V
A31
P+3.3V DET
STB+5V
DISCHARGE
CONTROL
+3.3V
SC46
R+/-
LVDS RX
DVI
A+15V
AUDIO
SELECT
SS11
SOS4_PS
A+5V
STB+3.3V
P+2.5V
P+3.3V
P+5V
ASIC
P+15V
LAN
CONTROL
SM46
LAN DATA
DS
13
P35
STB+3.3V
MAIN SW1
SS33
C2
DATA
DRIVER
KEY SWITCH
DATA DRIVER (RIGHT)
VIDEO DATA
SPEAKER
DATA
DRIVER
Y,PB,PR
DATA
DRIVER
V1
P9
DATA
DRIVER
DATA
DRIVER
C11
C20
DATA
DRIVER
PC
VIDEO DATA
P+3.3V
100BASE-TX
RESET
SUSTAIN CONTROL
V2
ALL OFF
DCDC
C23
V11
VSUS_CON_S1
HDMI SPDIF
DS SOS DET
CIRCUIT
R,G,B
A10
SLOT1
STBY+3.3V
A+9V
VSUS
PC/RS232C TERMINAL
SCAN
DRIVER
VIDEO SIGNAL
SELECT
+5V(P)
DIGITAL SIGNAL PROCESSOR
ASIC OUTA
STBY+5V
+3.3V(STB)
SC20
P+3.3V
SOS8_SS
P+5V
FAN SOS
DN BOARD SOS
A14
PANEL STB_ON
L,R-DVI
HDMI DVI
FAN SOS DET
SOS8_SS
A+15V
SS24
SPEAKER L
A9
TERMINAL
SC2
F+15V
SPEAKER R
P+15V
+1.8V(P)
TERMINAL
H3
SP AMP
MAIN SW2
VSUS GEN.
LED
VSUS
SS-BOARD
SOS DETECT
STBY+3.3V
SUSTAIN CONTROL
REMOTE RECEIVER/LED
Y,PB,PR-PC
Vda
ENERGY RECOVERY
S1
FAN CONTROL
PB
F+15V
SOS6_SC1
S35
SS
AUDIO IN
REMOTE
RECEIVER
SUSTAIN DRIVE
AUDIO IN
F+15V
SOUND
+15V
+1.2V(STB)
P+3.3V
P+1.2V
A35
F+15V_MON
HD,VD
SDRAM
A+5V
F+15V
MICOM
SYNC
PROCESSOR
V22
A+5V
SC41
HDMI
AUDIO
STB+5V
SOS7_SC2
LAN+3.3V
A22
MAIN SW1
DCDC
V
HD,VD-2
VE GEN.
ON
RESET
SOS8_SS
REMOTE IN
HD,VD-1
DS2
+1.2V(P)
C10
Vda
IIC
VSUS
OR
STB_ON
P+5V
VSUS
HD,VD
GenX7
COMPONENT/
COMPOSITE
CONTROL
PULSE
SCAN DRIVE
A8
SC-BOARD
FLOATING PART
SOS DETECT
SCX1
SC
H37
R,B,G
A+9V
A32
DCDC
A+5V
P+5V
P6
CIRCUIT
POWER SUPPLY
POWER MICOM
HX1
DCDC
DN BOARD
SOS
STANDBY
VOLTAGE
RECTIFIER
P+5V
SOS8_SS
JK2301
HD/VD
SOUND
CONTROL
ON/OFF CONTROL
A+15V
P+3.3V
P+15V
PB30
L,R-PC
P+15V
SLOT INTERFACE
STBY+1.2V
DCDC
BUFFER
HX
L,R-1
STB_ON
L,R-PC
SOS7_SC2
RXD/TXD_LAN
PANEL STB_ON
AUDIO
PROCESSOR
P+15V
LVDS/OSD
DCDC
VIDEO
Y,PB,PR-PC
LAN+14V
SOS8_SS
FAN A-C
P11
RESET
DCDC
A+9V
P+5V DET
P+15V DET
LVDS
A+9V
A+3.3V
Y,PB,PR-1
LED_R/
DCDC
STBY+5V
KEYSCAN
P_S1
P_S0
DATA
DRIVER
A+15V SOS
MAIN SW2
DATA
DRIVER
DS BOARD SOS
SCAN
DRIVER
MAIN SW1
P
DATA
DRIVER
A+5V SOS
LVDS IN
SUSTAIN
VOLTAGE
RECTIFIER
DATA
DRIVER
P-BOARD
SOS DETECT
RXD/TXD_PC
A11
DATA
DRIVER
L/R
DATA
DRIVER
P+3.3V,P+5V
SOS7_SC2
SC42
DATA
DRIVER
POWER SOS
VIDEO DATA
F+15V
SOS8_SS
ALL OFF
LED_G
P+5V
F+15V SOS
Vda
10BASE-T/
P+15V
Vda
P+5V
FAN VOLTAGE
CONTROL
FAN+15V
SOUND
+15V
STB+5V
STB+5V
P25
A25
(LED:9TIMES)
(LED:10TIMES)
(LED:2TIMES)
(LED:5TIMES)
(LED:4TIMES)
(LED:10TIMES)
(LED:11TIMES)
(LED:8TIME)
(LED:13TIMES)
(LED:13TIMES)
(LED:13TIMES)
(LED:7TIMES)
COLD
HOT
(LED:2TIMES)
(LED:6TIMES)
(LED:10TIMES)
(LED:11TIMES)
(LED:6TIMES)
(LED:4TIME)
(LED:7TIMES)
(LED:8TIMES)
(LED:3TIMES)
(LED:2TIMES)
DS
TH-42PF20E / TH-42PF20ER
38
11.2. Block (1 of 5) Diagram
DS_SOS
TXD_PC
SLOT_TXD
P_ON/OFF
REMOTE_OUT
SCL3
LAN14V_ON/OFF
RESET
SDA3
RXD_PC
SLOT1_DET
IIC_CONT
SLOT_RXD
D3104
A+15V
STBY+1.2V
D3105
STBY+3.3V
A+3.3V
D3111
LAN+14V
A+15V
STBY+5V
F+15V
D3112
D3102
A+1.8V
STBY+5V
R3110
Q3104
D3109
LAN+3.3V
Q3102
Q3103
R3111
R3108
STBY+5V
D3110
A+5V
STBY+3.3V
IC3502
Q3003
TXD
+1.8V
B31
TX0+/-
A+9V
A_ED+/-
A13
B12
Q3001
15
A15
HX
3
SLOT3.3V
REMOTE_OUT_S1
A_OE+/-
A9
8
A+5V
A_CLK+-
38
6
F+15V
NC
12
58
VCC
RTC INT
4
B35
1
Y_PC
A10
+3.3V
R_PC
SLOT5V
A_EC+/-
TIME CLOCK
SLOT+3.3V
LAN14V
OVER VOLTAGE SOS
3
AUDIO IN L
A17
B8
JK3511
B3
A_OA+- - OE+-
SOUND+15V
A2
A_EA+/-
A1
A_OA+/-
EEPROM
7
3
A_OB+/-
Q4903,04
TXC+/-
RXD
A+15V
51
DS_SOS
DS13
5V_SDA3
A13
DRIVER
1
55
3V_SDA3
3V_SCL3
IC3001
TX2+/-
11
Q3004
8
JK3513
B19
11
TXD
A_OC+/-
HX1
60
RXD_TU
13
B25
2
PC/RS232C TERMINAL
+3.3V
A8
Q3000
IC4903
IC3100
A12
39
2
A28
IC4902
52
LAN+14V_ON/OFF
5
47
L_PC
B17
PC IN
RXD_S1
REMOTE_OUT
8
PB_PC
A_EB+/-
11
2
A+5V
TX3+/-
B11
B37
L_1
RXD
15
DS2
15
A+15V
5V<->3.3V
3
1
15V_ON/OFF
A_CLK+/-
Q3120,21
SLOT1_DET
Q3002
PR_PC
36
IC3120
A5
PR_PC
TX6+/-
B9
A+5V
IIC_DATA
B21
14
15V_ON/OFF
4
B27
IC3000
B6
L_PC
PLUG DET
B5
SLOT9V
10
11
A4
14
TXD_S1
Y_PC
IIC_CONT
F+15V
AUDIO IN R
RS232C
SHORT SOS
A_EE+/-
12
B14
B38
TX8+/-
49
44
STB5V
F+15V_MON
DIGITAL SIGNAL PROCESSOR
A40
STBY+5V
1
A+9V
A+5V
A7
A26
5V_IIC3
6
Q3100,01
STBY+3.3V
B26
RS232C
10
AUDIO IN L
RESET
TXD_TU
IIC_CONT1(SRQ)
63
TXD
4
VD_PC
B23
A14
TX7+/-
+1.2V
JK3509
5
A+9V
PC AUDIO IN
5V_IIC3
B28
61
3
D3103
D3108
VD_PC
SLOT15V
3
A_OD+/-
33
Q3005
TX1+/-
A_CLK+-
R_1
54
4
64
5V_SCL3
R_PC
9
HD_PC
P6
REMOTE
F+15V
IC4301
LAN+14V_ON/OFF
IIC3
12
A19
SLOT INTERFACE
HD_PC
57
B30
14
A_EA+- - EE+-
A+5V
2
A+9V
A10
PB_PC
A14
15V_ON/OFF
59
1
RXD
D3100,01
5VNRST
Q3007
+5V
SLOT1
IIC_CLOCK
A_EA+- - EE+-
Q3006
TX9+/-
3
IIC_CONT
B2
2
F+15V
F+15V
B40
Q4661,62
LAN+3.3V
SOS
IC3002
1
RESET
IC4901
B24
Q4901,02
TX5+/-
41
REMOTE OUT
REMOTE OUT
3.3V->5V
A22
DS1
F+15V
40
TX4+/-
+9V
IIC_DATA1
A_OA+- - OE+-
2
65
SLOT1_DET
AUDIO IN R
A
RXD
A3
2
A+9V
A21
B15
TXD
2
IIC_CLOCK1
4
6
7
9
11
1
5
3
8
10
2
(LED:10TIMES)
(LED:10TIMES)
DS
TH-42PF20E / TH-42PF20ER
39
11.3. Block (2 of 5) Diagram
(LED:11TIMES)
(LED:11TIMES)
G
G
TXD_PC
F_STB_ON
REMOTE_IN
TXD_PC_M
VSYNC_ON/OFF
DPMS_HD
FAN_CONT
FAN_SOS
FAN_ON/OFF
RXD_PC
TXD_LAN
RXD_LAN
D_RXD
D_TXD
DPMS_VD
ALL_OFF
A+5V
A+1.8V
A+3.3V
FAN+15V
A+9V
A+5V
STBY+5V
A+3.3V
A+5V
FL4961
+3.3V_LAN
VDD
10bit A/D
36
3
PI1HS,PI1VS
74.25MHz
V1
+3.3V
RECEIVER
HDMI_CEC
D1550
STBY+3.3V
IC4515
IC4451
3
JK4001
REMOTE_OUT
+
1
HDMI
HD
+5V(FAN)
Y/G
12
FAN-SOS
VCC
17
3V_SCL3
3.3V
PB30
CLD
VIDEO
PROCESSOR
1
20MHz
STBY+5V
VOUT
HDA,VDA
GE0-9(10bit)
HDA,VDA
A11
MAIN SW2
LED_R
IC3272
10
30bitx2_ASIC OUT
V22
PI2G0-G9
HDMI_DET
FAN VOLTAGE
CONTROL
DVI IN
ASIC OUT A
3
A_OA+- - OE+-
5V->3.3V
67
IC4001
EEPROM
TTL
+1.8V
+1.8V
PI2B0-B9
PB32
POWER LED
SW
1
IC8301
PR-M/PB-M/Y-M
14
RESET
A5
VCC
11
ON
JK8301
IIC2
MII_MDC
1
TXD
V1_V
KEY INPUT
IC3271
EEPROM
IC8304
-
+3.3V
RTC INT
5V<->3.3V
DVDD
+1.8V
KEY SWITCH
SPI
MCCLK
VCC
DVDDIC
+3.3V
VCC1
CLKM/20MHz
A43
RESET
Y/PB/PR_PC
DECODE
3
LAN
CONTROL
RE0-9(10bit)
KEY SW
PARALLEL
LED_R
MII_TXD/
MII_RXD
+5V(HDMI)
S1
UART
30bit
IIC_IF
A+5V
IC8302
15
HDMI IN
30bit
EEPROM
LED_G
+5V(DVI)
25MHZ
JK3201
33
31
RESET
Y/PB/PR_HA
3
100BASE-TX
1
IC4004
+1.8V
DDC IIC
+5V
LAN+14V_ON/OFF
STBY+3.3V
20
FOR
FACTORY
USE
Q3211,12
MII DATA
VCC2
VD
CLK
SDA/
SCL
30bit_RGB VIDEO SIGNAL PROCESSOR
MII_TXD
MII_RXD
HDMI
DDC IIC
HD
10BASE-T/
SYNC SIGNAL
PROCESSOR
DVI_DET
4
SDA/
SCL
ASIC
REMOTE RECEIVER/LED
+1.8V
LVDS
RXD
+3.3V
FOR
FACTORY
USE
IC8308
A46
KEY SWITCH
+3.3V
PVDD
+1.8V
HD
+1.8V
SPI
FRASH
MEMORY
IC4201
IC4981
CONTROL IIC
VIDEO IN SELECTOR
7
IC8303
HD_M/
VD_M
IC8305
25MHZ
CLOCK GEN
IC4312
CLOCK
REMOTE
PB33
1
25
SYNC SIGNAL PROCESSOR
2
SELECTOR
OR
LAN+3.3V
3
NETWORK
CONTROL
HD_M
10/100
EtherMAC
w/FIFO
6
+9V(FAN)
LAN
DATA
28
9
COMPONENT SELECT
PI1B0-B9
TXD_TU
VIDEO IN
H/V
LED_R
SEPA
HDMI I/F RECEIVER
+5V
HDMI PROCESSOR
SLOT1_DET
COMPONENT SELECT
A9
5
3V_SDA3
IIC_CONT
1
Y0,Y1,UV0,UV1
JK4002
PI1D(0)-(29)
HDCP KEY
+7/12V
RXD_TU
[A]
LVDS RECEIVER & TTL PARALLEL
CLK
6
DPMS_HD 5V->3.3V
6
29
HD_ADA
VD_ADA
PI2HS,PI2VS
SYNC PROCESSOR
TMDS DATA CLOCK
A_EA+- - EE+-
2
MAIN
22
A+5V
1
V11
HD/VD SELECT
IC3201
A/D CONV.
PI2D(0)-(29)
AD_G0-G9
DIGITAL SIGNAL PROCESSOR
LED_G
POWER SW
SW061
Q3271,72
D3271,72
Q4981,82
IC3202
5VNRST
MAIN SW1
DPMS_VD 5V->3.3V
HD/VD SELECT
SEPA
Y2-Y9
4
HS,VS,CLK
VD
A35
POWER SWITCH
A1
DATA
A_CLK+-
P7
VD
ASIC-ARM
V Sync
3
AVDD
+1.8V
DS_SOS
30
IC4003
A+9V
5V->3.3V
PB34
TEMP
SENSOR
+1.8V
TMDS DATA CLOCK
Q4157
IC4281,82
S35
DS1
8
Q4451,52
RM001
IC4005
SDA/SCL
9
HDMI_CEC
H/V
A
PI2R0-R9
Q4104
ASIC OUT B
IC4002
CLK
UV2-UV9
IC4007
PR/R
DATA
A22
VD_M
MCLD
3
DDCB_IIC
DDCC_IIC
PB/B
MCDATA
FAN SOS DET
PI1G0-G9
AUDIO IN L
Q3273,74
D3273,74
1
CLK5
Q3203
R/G/B
3
AUDIO IN R
18
IC4006
IC4361
REMOTE RECEIVER
6
AD_R0-R9
IIC3
+5V
R/G/B
H Sync
4
Q3201,02
SYNC SEPA
SIGNAL
IIC2
+3.3V
1
PI1R0-R9
LED_G
HS,VS,CLK
15V_ON/OFF
1
IIC
BE0-9(10bit)
30bit
AD_B0-B9
8
11
10
6
7
2
3
5
1
9
4
35
38
33
34
31
36
32
37
30
29
27
28
26
24
39
23
22
21
25
IIC3
28.64636
MHz
IIC2
TVDD
+3.3V
CVDD
+1.8V
20MHz
+1.8V
(LED:11TIMES)
(LED:11TIMES)
FAN_A-C
V2
FAN CONTROL
PB
TH-42PF20E / TH-42PF20ER
40
11.4. Block (3 of 5) Diagram
(LED:10TIME)
(LED:6TIMES)
(LED:8TIMES)
(LED:13TIME)
(LED:3TIMES)
(LED:7TIMES)
(LED:2TIMES)
(LED:2TIME)
(LED:9TIMES)
(LED:5TIMES)
(LED:4TIMES)
(LED:11TIMES)
(LED:10TIME)
(LED:2TIMES)
G
G
G
G
DVI_DET
5VRXD_TU
FAN_ON/OFF
3.3VRXD_TU
ALARM
AUDIO_SOS
SLOT1_DET
D_RXD
RTC_INT
RXD_PC
KEY_INPUT
TXD_PC_M
ALL_OFF
FSTB+15V_MON
READY
LED_R
DPMS_HD
SOUND_MUTE
DPMS_VD
NRST
REMOTE_IN
HDMI_DET
P_ON/OFF
LAN+14V_ON/OFF
IIC_CONT
15V_ON/OFF
FAN_CONT
PANEL_STBY_ON
5VNRST
FAN_SOS
SOUND_MUTE
F_STB_ON
LED_G
PANEL_STBY_ON
DS_SOS
5VTXD_TU
D_TXD
VSYNC_ON/OFF
XIRQ3
NRST
NRST
XIRQ3
FL4008
P+5V
A+1.8V
A+3.3V
A+15V
A+5V
STBY+5V
P+15V
STBY+3.3V
A+9V
FL4007
D4665
STBY+3.3V
P+3.3V
D4664
D4663
STBY+1.2V
A+1.8V
IIC3
30
L/R_PC
RESET
GOUT
STB_
IIC2
R2
A6
+3.3V SOS
SCX1
-
EEPROM
SP_L+
IC9003
AUDIO IN(L/R_DVI)
H3
CLK
IC9304
IC2302
P+15V
DDR_SDRAM
BUFFER
VIDEO DATA
OUTPUT
31
Q4351
9
LSI RESET
H
VIDEO SIGNAL PROCESSOR
IC4382
STB+3.3V
STB+5V
(COMPONENT)
PANEL MAIN ON
P+3.3V
VIDEO/PANEL CONTROL
SOUND_MUTE
VCC
Q4670
L_OUT-
11
PI2D(10)-(19)
LOGIC
OUT+
P3V_
IIC2
STB_IIC2
IIC_SW
ADDRESS
DATA
IP CONVERTER
RESET
SCX1
TERMINAL
OSD I/F
L2
Q4667
POWER SOS
IC9801
R1
SC20
16
L
KEY_INPUT
PI1D(0)-(29)
DVI
COMPOSITE
SCX1
+1.2V
5V
SCX IN B
IC9001
1
IC9802
VOUT
3
53
DCC_SOS
+2.5V
P+15V
SUSTAIN CONTROL
FAN_CONT
P+15V
P+5V
55
PI1D(10)-(19)
ROUT
PI1HS,PI1VS
49
DDR_SDRAM
FLASH I/F
SPEAKER L
MUTE
SOS6_SC1
C21
OUT-
AUD_SEL2
CONTROL DATA
SCX1 IN
SLOT1_DET
2
UHZ
AUD_SEL2
POCLK/74.25M
PANEL STATUS
R_OUT-
5V<-3.3V
P3V_IIC1
TXD_PC
IC4704
RXD_PC
LAN+14V_ON/OFF
52
P+3.3V
STB_
IIC1
P25
+5V(P)DET
VIDEO DATA
P+5V
1
38
IIC
IIC2
30bit
DVDD
IC4503
3
RST
H
RESET
8
VSUS_CON_S0
IN3
10
IC9004
DQ0-DQ15
TTL
SOUND_MUTE
STB_IIC1
CPG with SS
A+9V
R3
L
CLD
SDA/SCL
SOUND+15V
L/R
IC9800
LVDS DATA
PLASMA AI
L/R_CV
ALARM
IC2305
(COMPOSITE)
FSTB+15V_MON
PANEL SOS
1
PWM IN
16Mbit
POWER SOS
TXD_TU
H37
SCX IN A
JK2401
PC
VIDEO SWITCH
PI2D(0)-(29)
PANEL_STATUS
READY
RTC_INT
IN1
+2.5V
AUD_SEL1
SOS7_SC2
+3.3V
IC2301
PI2HS,PI2VS
+1.8V
IIC
Q4669
AVDD
SCAN CONTROL
IC4314
+15V(P)DET
A+9V
DPMS_HD
SCAN CONTROL
AUDIO INPUT(L/R_HA)
P_S0
A+5V
FPGA_CLK
SDA4/SCL4
Q4663,64
AUDIO IN(L/R_CV)
P+15V
+5V
H/V SYNC CONTROL
IC4502
H
RESET
18
1
DDR_SDRAM
IC9300
SDA3/SCL3
HS,VS,CLK
PANEL MAIN
ON
P3V_IIC2
L/R_HA
+1.8V
JK8500
SOUND CONTROL
FAN_SOS
PANEL SOS
D_TXD
AUDIO_SOS
+3.3V
DS BOARD SOS
DISCHARGE
CONTROL
H
OUT+
USE
DATA
3
IIC CONT
FPGA_DATAIN
SP AMP
7
DDR_SDRAM
LVDS
READY
P+3.3V
IC2304
IC9400-02
FOR
L OUT-
POWER ON/OFF
INTERFACE
+1.8V SOS
SP_L-
PI1D(0)-(9)
CONTROL DATA
FACTORY
FPGA_LD
30bit
SDA2/SCL2
MICOM
+1.2V
P+3.3V
A+15V SOS
SP_R+
HDMI_DET
A31
POWER_ON/OFF
INTER FACE
LVDS DATA
JK8500
A+3.3V
GenX7
LED_G
+1.2V
+3.3V
IIC
JK2402
JK2301
IIC1
IC4313
10bit LVDS
IC4703
SCX1 IN
Q4668
R_OUT+
SOS8_SS
IN4
PI1D(20)-(29)
LED_R
DCC_SOS
IC4702
39
SEL1
SUSTAIN CONTROL
TERMINAL
40
LVDS RX
SPEAKER R
TERMINALS
PI2D(0)-(9)
L/R_DVI
A0-A19
+3.3V
+
PI2D(20)-(29)
CONTROL DATA
A8
15
A
AUDIO SOS
VSYNC
VIDEO DATA
A20
BUFFER
(DVI)
COMPONENT
HS,VS,CLK
REMOTE IN
29
P_S1
ODVDD
IC4501
OSD I/F
+3.3V(P)DET
DRVRST
IIC2
FLASH MEMORY
D_RXD
AUDIO INPUT
SELECT
IC2303
ASIC-ARM
SDA1/SCL1
SOS8_SS
ALARM
FLASH
MEMORY
PARALLEL
DVI_DET
PANEL STBY ON
L1
STB_ON
R OUT-
35
5
+9V SOS
L_OUT+
VIDEO DECODER
VSUS_CON_S1
SUB-FIELD PROCESSOR
LVDS OUT
DIGITAL SIGNAL PROCESSOR
DN BOARD SOS
OSD
FLASH MEMORY
CLK_O
A32
L OUT+
L
VCC
L3
IIC4
BOUT
PANEL MICOM
R OUT+
INTERFACE
DPMS_VD
15V_ON/OFF
PD4H
STB+3.3V/RESET
P3V_
IIC1
SOS6_SC1
L
OUT-
A+5V SOS
SOS7_SC2
P+3.3V
RXD_TU
IC2306
EEPROM
A25
C11
SPEAKER
SEL2
CLOCK IN
FAN_ON/OFF
SP_R-
A+15V SOS
AUD_SEL1
Q2301
UHZ
HSYNC
IN2
DATA
ALL_OFF
VIDEO DATA
STB_IIC2
+3.3V
IC9803
28
30
22
27
23
26
25
29
21
24
39
37
32
33
35
36
38
31
34
VSYNC_ON/OFF
20MHz
10MHz
36MHz
24.576
MHz
INT1
STBY
XIRQ3
(LED:10TIME)
(LED:6TIMES)
(LED:8TIMES)
(LED:13TIME)
(LED:3TIMES)
(LED:7TIMES)
(LED:2TIMES)
(LED:2TIME)
(LED:2TIMES)
(LED:9TIMES)
(LED:5TIMES)
(LED:4TIMES)
(LED:11TIMES)
(LED:10TIME)
Click on the first or last page to see other TH-42PF20E / TH-42PF20ER service manuals if exist.