Panasonic TX-42AS750E / TX-42ASW754 / TX-42ASR750 (serv.man2) Service Manual ▷ View online
Block Diagram (1/2)
A-BOARD
TUNER DVB-A+(T2/C/S) x2
TU6707
35
17,18
4,3
1
2
2
IC8000
[MN2WS0280PB]
Peaks LD6
IF2_N,P
IF2_N,P
TUNER I/F
AGC2
AGC2
TUNER CTRL
FE_XRST
SA
T_RST
SAT_RST
FE_XRST
AE27, AG31
38,37
DMD_ IIC1
DMD_1.2/1.1V
SUB3.3V
EU_TU_1.8V
SUB3.3V
16V
DISEQC_OUT_S
48
3
7,6
12
IC6800
[C1AB00004164]
DVB-A/T2/C/S
DEM
IC6881
LNB_MAIN
IF1_P,N
IF1_P,N
DMD_ IIC
DMDSCL1/SDA1
SDA/SCL_0
2nd_SDA/SCL
2nd_SDA/SCL
HS2BCLKIN
HS2SYNCIN
HS2VALIN
HS2DIN[0-7]
Parallel TS
3,4,5,8,9,
12,13,14,
15,16,17
AGC1
FEF_FLAG
47
20,21
Parallel TS
26
31,32
23
38,37
48
IC6803
[C1AB00004164]
DVB-A/T2/C/S DEM_SUB
IF2_P,N
3,4,5,8,9,12,13,
14,15,16,17
AGC2
FEF_FLAG
47
20,21
26
31,32
23
TS P
ARALLEL
INPUT 2
TS P
ARALLEL
INPUT 3
DMD IIC_0 DMD IIC_1
DEMOD I2C
FEF_FLAG
12
FEF_FLAG
24
T2_FEF
AGC1
5
AGC1
32
SAT_AGC2
27
AGC2
19
XRST
11
IF2_N,P
8,9
AGC2
10
SAT RST
25
LNB_PWR2
33
I1,Q1
30,31
Q2,I2
22,23
AGC1
SAGC1
SAT_AGC2
Q1,I1
Q2,I2
LNB_PWR1
LNB_PWR2
IF1_N,P
6,7
IF2_N,P
20,21
JK301
1
AV_V
20
AV_VOUT
19
AV_RED/C
15
AV_GREEN
11
AV_BLUE
7
AV_L
6
AV_LOUT
3
AV_R
2
AV_ROUT
1
AV 21PIN SCART
VIN
VOUT
SCART_R
SCART_G
SCART_G
SCART_B
SCART_LIN
SCART_RIN
LOUT
ROUT
VOUT
Video Out
AH16
AK12
AL13
Video input
LOUT
ROUT
IC3052
Audio Amp
1
2
6
7
SUB9V
8
AL9
AK10
AK10
Audio output
SCART_R
SCART_G
SCART_B
SCART_G
SCART_B
AM13
SCART_LIN
SCART_RIN
AL11
AM11
Audio input
LOUT
ROUT
VIN
AL15
Y
PB
PR
L
R
L
JK3001B
AUDIO
IN
LIN_TERMINAL
L
R
COMP_D_PR
COMP_D_PB
COMP_D_Y
COMP_D_PB
COMP_D_Y
RIN_TERMINAL
AM14
AN14
COMP_D_Y
AL14
COMP_D_PR
COMP_D_PB
LIN_TERMINAL
RIN_TERMINAL
RIN_TERMINAL
AL12
AN12
HP_L
JK31
11A
HP-OUT
HP_R
HP_L
HP_R
HP_R
AM9
AN9
AN9
Digital
Audio
Out
D3101
IECOUT
SUB3.3V
IECOUT
AJ31
2_RX
1_RX
1_RX
HDMI Input
ARC_OUT
Y/V
in,PB,PR
JK4702
HDMI2
2_HPD
2_5VDET
2_SDA
2_SCL
CEC
2_5VDET
2_SDA
2_SCL
CEC
2_RX
JK4703
HDMI1
1_HPD
1_5VDET
1_SDA
1_SCL
CEC
1_SDA
1_SCL
CEC
1_RX
JK4701
HDMI3
3_HPD
3_5VDET
3_SDA
3_SCL
CEC
CEC
3_RX
R4703
R4713
R4753
STM
HDMI I/F
3_HPD
2_HPD
1_HPD
1_SDA
1_SCL
2_SDA
2_SCL
3_SDA
3_SCL
1_5VDET
2_5VDET
CEC
AJ17
AJ18
AG19
AK17
AJ19
3_5VDET
AH19
AL18
AK18
AL19
AK19
AJ20
AH20
AM20
3_RX
AN6
CECPUL
AN20
ETHERNET
JK8602
9
T8601
1
2
3
6
11
14
16
8
6
3
1
TX+
TX-
RX+
RX-
IC8650
[C1CB00003736]
LAN CONTROLER
6
5
4
3
RMII_RXD0,RXD1
RMII_TXD0,TXD1
RMII_REFCLK,TXEN,
CRS_DV,RXER
MDIO,MDC,INTL,
PHYRSTL
CRS_DV
WOL
3.3V
14,30
TX+
TX-
RX+
RX-
LAN
PHY
I/F
STMCECA
VL1A
STMCECA
VL1A
AM19
ARC_OUT
JK8605
WiFi
1
2
3
IC8603
SW
6
1
3 4
USB5V
STMTIME6
STMGPIO8
DM1
DP1
IC8601
USB HUB
12 13
SUB3.3V
5,9,14,21,28
DM1
DM2
DP1
DP2
15 16
24
BT_USBDP
BT_USBDN
JK8601
USB2
1
2
3
IC8602
SW
6
1
3
4
USB5V
JK8603B
USB3
1
2
3
IC8606
SW
6
1
3
4
USB5V
USB1_VBUS
USB0_VBUS
USB1_OD
USB0_OD
USB1_DP USB1_DN
USB0_DP USB0_DN
5
6
8
9
USB0_RXN USB0_RXP
USB0_TXN USB0_TXP
T3
T2
JK8606
USB1
1
2
3
IC8607
SW
6
1
3
4
USB5V
USB2_VBUS
USB2_OD
USB2_OD
USB2_DP USB2_DN
T7
U1
USB I/F
U2 W3
W2 Y2 Y1
1
6
7
2
STMTIME6
STMGPIO8
AK21
AJ24
4
STMTIME5
STMTIME5
AL21
USB1_VBUS
USB1_OD
USB0_VBUS
USB0_OD
USB2_DN
USB2_DP
R4 R3
CI I/F
AB2
AA2
AA3
AB1
USB POWER
CTRL
A10
11
9
10
9
3
10
11
5
TO Bluetooth/K10
SUB3.3V
STB3.3V
SUB_AI_3.3V
7
1
6
4
R_LED_ON
G_LED_ON
AI
REMOTE
3
7
9-10
12
A02A
TO P2
9
10
1-3
11
7
STB5.3V
BL_ECO
POWER_ON
8
BL_ON
KEY1
12
SUB_ON
IC5000
[AN34043AAVF]
ANALOG ASIC
1
6
2
14
30 31
STB5V
STB5V
SUB5V
SUB9V
STB1.14V
28 12
32
STB3.3V
PEAKSRST
STB_XRST
15
SUB_AI_3.3V
16V
OVP SOS
SUB3.3V
SUB5V
16V
8
TV_SUB_ON
5
PWM_ENB
DCDCEN
11
16V
CI SLOT
JK8400
A17,A18
A51,A52
B17,B18,
B51,B52
SUB_CI_5V
-B
SUB_CI_5V
TS Paraller Output
CI ADDRESS
TS Paraller Input
CI DA
TA
CI DA
TA
TS Paraller Output
TS Paraller Input
SD SLOT
JK8600
SD DA
TA
SUB3.3V
SD CARD I/F
IC8200
DDR3
2GBit
SUB1.5V
IC8201
DDR3
2GBit
DDR3 CH I/F
IC8202
DDR3
4 GBit
SUB1.5V
IC8201
DDR3
2GBit
SUB1.5V
SP_R
SP_L
A12
IC4900
[C1AB00003984]
AUDIO AMP
5
6
7
8
1
2
3
4
9,16,25,32
10,11
14,15
26,27 30,31
L-
L+
R+
R-
AK29
AH28 AG29 AH30
AUDIO Output
SOUND_SOS
STM
AG25
18
BCLK
MCLK
LRCLK
SDA
TA0
16V
SUB3.3V
22
STM IIC
IIC_0 IIC_1
BE I2C
IC8903
eMMC Nand Flash
4 GBit
SUB3.3V
eMMC CARD I/F
IC8901
STM EEP
STB3.3V
A15
3,4,5,6
8,9,11,12
13,14,15,16
19,20,21,22
24,25,27,28
29,30,31,32
48
PANEL_TEST_ON
TO P
ANEL
LVDS I/F
P33,P32,R31,R32
T30,U33,T31,U30
U33,U32,U31, V32
T28,U28,V28,U29
V30,V29,W27,W28
Y29,Y28,Y30,W29
LVDS
LVDS
1-4
PNL12V
AE31
BE COMMON PORT
A16
11,12,13,14
16,17,19,20
21,22,23,24
27,28,29,30
32,33,35,36
37,38,39,40
V31,W30,W31,Y31
Y33,Y32,AA31,AA32
AB32,AB33,AB31,AC32
AA30,AA29,AA28,AA27
AB27,AC27,AB30,AB29
AC29,AC28,AD28,AD29
LVDS
LVDS
1-4
8
PANEL_3D_ON
51
AF28
TO P
ANEL
13
BL_PWM
BL_SOS
14
15
PWMB
17
PWMC
18
PWMD
19
PWME
20
PWMF
21
PWMG
22
PWMH
BL_ON
AH24
POWER_ON
AJ25
BL_SOS
AK20
KEY1
AJ26
SUB_ON
AL23
BE POWER CTRL
BL_ECO
AG30
BL_PWM
AE33
P
ANEL
PWM
PWMB
AE32
PWMC
AF31
PWMD
AE30
PWME
AE29
PWMF
AK31
PWMG
AK30
PWMH
AL30
BE COMMON PORT
REMOTE
R_LED
G_LED
AI
AG21
AH26 AJ23
AK24
PWM_ENB
AK22
PEAKSRST
AM17
BE RESET
STB_XRST
AG17
IC5300
DC/DC
2
3
16V
PNL12V
IC8704
DC/DC
2
7,8
16V
SUB5V
IC8705
DC/DC
2
3
16V
SUB3.3V
IC8100
DC/DC
12
17
16V
SUB1.1V
IC8101
DC/DC
2
3
16V
SUB1.5V
IC5702
DC/DC
IC8401
IC8402
IC8403
IC8501
IC8502
IC8503
2
3
SUB5V
DMD_1.2/1.1V
IC8660
Reg
3
4
SUB5V
SUB3.3V
IC8715
Reg
4
3
SUB5V
HDMI3.3V
IC8712
Reg
4
3
STB5V
WOL3.3V
IC8400
Reg
1
5
SUB5V
SUB_CI_5V
IC8500
Reg
1
5
SUB5V
SUB_CI_5V-B
DCDCEN
DCDCEN
DCDCEN
DCDCEN
3
7
14
7
STB3.3V
SUB1.1V
SUB1.5V
SUB3.3V
WOL3.3V
HDMI3.3V
STB5.3V
STB5V
R5201
IC5704
Reg
3
4
SUB3.3V
TU_1.8V
CI BUFFERS
ILNB_PWR_M
16V
DISEQC
_OUT_S
3
7,6
12
IC6881
LNB_SUB
25
Block Diagram (2/2)
Li
ne
Fi
lte
r
LF7106
F7101
2
4
1
CF7104
~
~
+
-
D71
10
D7105
D7104
IC7301
14
VS
9
VW
PWM
Controller
HOT
COLD
PC7301
Photo coupler
1
VH
4
FB
5VS
P2
2
3
TO A02A
14
11
13
BL_SOS
BL_ON
9
TV_SUB_ON
POWER_ON
12
7
1
10
KEY1
IC7401
JK7101
MAIN INPUT
Li
ne
Fi
lte
r
LF7104
2
3
1
4
T7201
2
4
IC7201
PFC
Control IC
7
OUT
8
VCC
Q7201
Q7202
4
3
14
T7301
7
6
PC7303
Photo coupler
PC7302
Photo coupler
Q7403
IC7503
Reg
2
Vin
3
Sw
16V
16V
16V
16V
D7305
6
REF
10
VCC
D7304
12
9
D7412
5VS
Q7401
P-BOARD
6
EN
TV_SUB_ON
15
17
18
BL_PWM1
BL_PWM2
BL_PWM3
IC7800
LED DRIVER
DC/DC
8
STB
39
FAIL
2
N
4
CS
32
CL1
P3
2
1,3,5 7,9
24V
L7800
4,5
1,2
TO PANEL
K-BOARD
K10
6
5
4
3
1
5
4
3
1
7
STBY 3.3V
SUB3.3V
RM2800
VCC
OUT
SN2800
AI
2
4
VCC
OUT
D2802
R G
T
O A10
REMOTE
AI
G LED
R LED
SUB3.3V
AI
STBY 3.3V
STBY 3.3V
R LED
G LED
REMOTE
24V
3
D7403
Q7402
Q7404
D7413
BL_PWM4
BL_PWM5
BL_PWM6
19
20
P5
2
3
POWER_ON
KEY1
TO GK4
D7817
16V
IC7801
Switching DRIVER
4
N
8
VDD
7
Out
40
VCC
BL_SOS
BL_ON
BL_PWM1
BL_PWM2
BL_PWM3
BL_PWM4
BL_PWM5
BL_PWM6
17
PWM1
18
PWM2
19
PWM3
20
PWM4
21
PWM5
22
PWM6
R7808
9
BS1
Q7809
31
CL2
4
10
BS2
Q7802
30
CL3
6
11
BS3
Q7803
29
CL4
8
12
BS4
Q7804
28
CL5
10
13
BS5
Q7805
GK-BOARD
GK4
SW2855
SW2854
SW2853
SW2852
SW2851
KEY1
SW2857
3
2
TO P5
POWER_ON
33
VREF
26
Parts Location
13
1
29
14
15
31
12
TMK0EA432
TMK0EA432
TMK0EA421
TMK0EA462
TMK0EA155
TMK0EA421
TMK0EA496
TMK0EA421
30
16
2
5
42
TMK0EA492
TMK0EA483
TMK0EA482
TMK0EA427
TMK0EA426
TMK0EA462
TMK0EA419
27
Parts Location
19
3
32
19
18
17
32
21
20
25
28
24
27
19
26
19
27
22
11
9
33
7
6
34
10
33
8
34
SCREWS
THE5ZC008N /4pcs/
4
23
28
Click on the first or last page to see other TX-42AS750E / TX-42ASW754 / TX-42ASR750 (serv.man2) service manuals if exist.