Panasonic lh91 tc-l42u12 Service Manual
38
11.12. A-Board (11/11) Schematic Diagram
+
+
+
Thermal
Pad
Pad
IF_Monitor
18
XECS7
CH0VAL
FE_IF_AGC
CH0VAL
CH0DATA
CH0PSYNC
AD_SDA2
CH0DATA
AD_SCL2
CH0CLK
CH0PSYNC
FE_SCL_TU
AC_TV1_V
FE_SDA_TU
RF_VIDEO_OUT
AC_TV1_L
AC_TV1_R
XIRQ2
CH0CLK
FE_IF_AGC
AG_RF_AFT1
RF_VIDEO_OUT
AD_SCL2
AD_SDA2
XECS7
AG_RF_AFT1
AC_TV1_R
AC_TV1_L
AC_TV1_V
XIRQ2
FE_SDA_TU
FE_SCL_TU
C8381
16V
0.1u
C8376
16V
0.01u
C8377
16V
0.1u
C8382
16V
0.01u
C8373
16V
0.1u
C8374
10V
10u
10u
C8370
50V
1000p
C8378
16V
0.01u
C8379
16V
0.1u
C8375
10V
10u
10u
C8380
50V
0.01u
C8372
10V
10u
10u
C8344
10u
10V
C8340
16V
0.1u
C8338
50V
15p
C8337
16V
0.1u
C8335
16V 0.1u
C8341
16V 0.1u
C8321
50V
50V
120p
C8332
16V
0.1u
C8328
16V
0.1u
C8324
16V
0.1u
C8339
16V
0.1u
C8336
50V
12p
12p
C8342
16V
0.1u
C8325
16V
0.1u
C8301
50V 220p
50V 220p
C8323
1000p
50V
C8308
50V
0.01u
C8307
50V
1000p
C8312
16V
0.1u
C8309
50V
1000p
C8315
1000p
50V
C8333
16V
0.1u
C8330
10u
10V
C8329
10u
10V
C8343
6.3V
1u
C8326
16V
0.01u
C8345
10u
10V
C8302
50V 220p
50V 220p
C8331
16V
0.1u
C8327
16V
0.1u
C8322
1000p
50V
C8303
50V 220p
C8310
16V
0.1u
16V
0.1u
C8334
16V 0.1u
C8316
1000p
50V
0.1u
50V
C8371
C8314
6.3V
220u
220u
C8313
6.3V
220u
C8311
35V
22u
22u
IC8300
MN88436
1
VDDH0
2
XI
3
XO
4
VSS0
5
GPI
6
INT
7
VDDL0
8
SDA
9
SADR1
10
CSEL0
11
SCL
12
CSEL1
13
GPO0
14
GPO1
15
GPO2
16
GPO3
17
GPO4
18
GPO5
19
GPO6
20
NRST
21
SADR0
22
VDDH1
23
SCK
24
VSS1
25
SDO
26
PCK
27
VDDL1
28
DEN
29
GPO7
30
GPO8
31
TEST0
32
MSDA
33
TEST1
34
MSCL
35
TEST2
36
AGCRF
37
VSS2
38
VDDH2
39
AGCIF
40
VDDL2
41
TESTA
42
ADIRF
43
ADVRH
44
ADVRL
45
VDDA
46
ADINN
47
ADINP
48
VSSA
L8302
J0JHC0000045
L8301
J0JHC0000045
L8300
J0JHC0000045
L8308
J0JHC0000045
J0JHC0000045
L8307
J0JHC0000045
L8306
J0JHC0000045
L8309
J0JHC0000045
L8304
G1CR39JA0020
L8305
G1CR10JA0020
L8303
G1CR39JA0020
BT30V
BT30V
SUB3.3V
SUB1.2V
SUB3.3V
SUB1.2V
SUB5V
SUB3.3V
SUB3.3V
SUB5V
SUB5V
TP8300
TP8301
TP8005
TP8002
TP8003
TP8302
AD_SCL2
XECS7
CH0PSYNC
CH0VAL
AC_TV1_L
CH0CLK
AC_TV1_R
AG_RF_AFT1
CH0DATA
AC_TV1_V
XIRQ2
AD_SDA2
Q8300
2SB0709ASL
R8334
47
R8324
2.2k
R8301
0
R8329
22
R8305
0
R8317
1k
R8309
0
R8318
1k
R8303
47
R8311
0
R8313
0
R8310
0
R8336
0
R8312
0
R8332
47
R8337
22
R8338
47k
R8327
47k
R8300
0
R8308
0
R8314
220
R8340
4.7k
4.7k
R8323
220
R8306
1k
R8307
1k
R8339
4.7k
R8302
47
R8304
0
R8326
10k
R8330
47
R8316
470
R8328
100
1%
R8319 10k
R8333
22
R8335
47
R8321
2.2k
TU8300
ENGE6609KF
NC
1
NC
2
NC
3
L-out
4
R-out
5
RF-AGC_Monitor
7
Video-out
8
VB
9
BT_Monitor
11
BTL
12
SDA
14
SCL
15
AFT-out
16
+B
17
IF-AGC
19
IFD-out1
20
IFD-out2
21
H0J250500079
X8300
I2C, IFAGC
3.3V
1.2V
TS
ANALOG
I2C, IRQ, RST
IF_OUT_P
I2C, IRQ, RST
TUNER
25MHz
IF_OUT_N
TS
I2C, IFAGC
ANALOG
FE LSI
TO 6/11
TO 5/11
TO 1/11
TO 1/11
TO 2,5,10/11
91
96
97
95
93
99
94
98
92
!
!
TXN/A10PYHS
A-BOARD (11/11)