A-Board (11 Of 12) Schematic Diagram - Panasonic TH-50PX75U Service Manual

TH-50PX75U

15.22. A-Board (11 of 12) Schematic Diagram

A-BOARD TNPH0692ACS (11/12)
!
Front End
SUB5V
FL8308
J0MAB0000164
1 3
2 4
C8394 C8396
10V 10V
0.1u
10u
TU8300
ENGE6602KF
TUNER
L8300
C8309 BB J0JHC0000045
6.3V
1
220u NC
C8300
10V 2
0.1u NC
3
L_OUT RF_L
C8397
4
10V R_OUT RF_R
0.1u
5
NC
C8301
6
50V
AGC_Monitor
1000p
C8310 7
BT30V
6.3V TU
220u C8388
L8301 C8387
C8302 8 50V
BV J0JHC0000045 50V
10V 0.1u
1000p
0.1u
9
C8303
NC
50V
0.01u
10 L8302
C8311 BTL J0JHC0000045
35V
22u 11
SDA
C8304
50V
12 R8307 47
82p
SCL
C8305
50V 13 R8308 47
82p AFT AH_RF_AFT1
C8306 14
50V
NC
10p
15
Video_OUT AH_VIDEO_OUT
L8303
16
C8312 J0JHC0000045
V_Supply
6.3V
220u 17
C8307 IFD_OUT1
10V
18
0.1u
IFD_OUT2
C8313
50V
19
1000p IF_AGC
20 R8309
IF_OUT 0
0V 21
TH-50PX75U
A-Board (11 of 12) Schematic Diagram
91 92
SUB3.3V
R8337
1k
R8330
SCL 0 AD_SCL_FE
R8335
220
Q8303
B1CBHD000002
R8331 Q8301
0
SDA AD_SDA_FE 2SB0709A0L
Q8302
B1CBHD000002
IIC 5V 3.3V
SDA
SCL
AP_IF_AGC
R8333 1M
C8327 C8330 C8335
50V 50V 16V R8332 R8334
12p 100p 0.01u 220 0
AP_FAT_P
C8320
50V R8318
R8313 C8333
1000p 100
IF_OUT_P 0 L8306 50V C8337 C8338
G1CR22JA0020 47p 50V 50V
C8329 10p 12p
C8321
50V
R8314 50V R8319
27p C8334
0 1000p 100 L8307 X8300
50V C8336
G1CR22JA0020 H0J250500079
47p 16V
IF_OUT_N
C8324 0.01u
50V AP_FAT_N
27p
C8328 C8331
50V 50V
12p 100p
93 94
SUB3.3V
C8342 C8350
10V 10V
0.1u 10u
C8355
10V
0.1u
1
2
3
4
OBADVRH
VDDA6
5
OBAINP N.C.
C8344
10V 6 N.C.
OBAINN
0.1u
7
VDDA0
8
VSSA0
C8339
10V 9
VSSA1
0.1u
10
VDDL0
11
VSS0
IC8302
C8345 12
STCPO
10V 0.1u
13
VDDA1
MN88435
14
VSSA2
15
LCKP
C8346 16
LCKN
10V 0.1u
17
VDDA2
18
VSSA3
C8347 19
C8340 PTCPO
10V 0.1u
10V 20
VDDA3
0.1u
21
VDDL1
22
VSS1
C8341
23
10V
VDDL2
0.1u
24 FRONT END PROCESSOR
XO
25MHz 25
(TERRESTRIAL RECEIVER)
XI
26
VSS2
R8338 12k 27
IBADIRF
28
VSSA4
C8348 29
10V VDDA4
0.1u 30
VSSA5
C8349
31
10V VDDA5
IBADVRL
AP_FAT_P 0.1u 32
IBAINP N.C.
33 IBADVRL2
N.C.
AP_FAT_N 34
35
C8351
36
10V
0.1u
C8352
10V
0.1u
C8353
10V
0.1u
C8354
10V
0.1u
95 96
78
RF_V
RF_L
RF_R
R8395
0
AH_RF_AFT1
LiteII
AD_SDA2
AD_SDA2
AD_SCL2
AD_SCL2
AD_TMS
AD_TMS
AD_TCK
AD_TCK
AD_TRST
SUB1.2V SUB3.3V AD_TRST
TD_SPC_TO_FE
SUB3.3V
R8903
47k
FE_TO_PEAKS
FE_IRQ
FE_XRST
(XECS6)
108
107 LiteII
106 R8379 100 FE_IRQ
105
N.C.
TRST
104 C8377
N.C. VDDL9
10V
TDI 103 0.1u
VSS15
102
OBDRX
101 R8875
OBCRX
47k
100 C8378
VDDH5
10V
99 0.1u
VSS14
98 R8380 47 AA_CH0CLK AA_CH0CLK R8876 0
IBDO7
C8379 AA_CH0SYNC
97 R8878 0
VDDL8 10V
96 0.1u AA_CH0VAL R8877 0
VSS13
AA_CH0DATA AA_CH0DATA
95 R8381 47 R8900 0
IBDO6
94 R8382 47 AA_CH0VAL
IBDEN
AA_CH0SYNC
93 R8383 47
IBPCK
92 C8380
VDDH4 10V
91 0.1u
VSS12
90
IBDO5
89
IBDO4
88 C8381
10V
VDDH3
0.1u
87
VSS11
86
IBDO3
85
IBDO2
84 C8382
VDDL7 10V
83 0.1u
VSS10
82
IBDO1
81
IBDO0
80 C8383
VDDH2 10V
79 0.1u
VSS9
78
IBBCK
N.C.
77
TEST3 IBERR
TEST2 76
IBFSYNC
75 C8384
10V
74 0.1u
73
TH-50PX75U
A-Board (11 of 12) Schematic Diagram
97 98
TP8315
RF_V
TP8313
RF_L to(5/12)
TP8314
RF_R
to(8/12)
AG_RF_AFT1
to(3/12)(5/12)(12/12)
to(3/12)
to(3/12)
TD_SPC_TO_FE
SUB3.3V
R8904
R8864 47k
0
TDI
R8850
56
XIRQ2 to(1/12)
XECS6
R8865
(FE_XRST)
56
CH0CLK
CH0PSYNC
to(1/12)
CH0VAL
CH0DATA
99