A-Board (13/22) Schematic Diagram - Panasonic TX-P50S20B Service Manual

13.17. A-Board (13/22) Schematic Diagram

! A-BOARD (13/22) TUNER,STB-RESET
TUNER1.2V
FE1.2V
TP2952
1 VOUT 6
VIN
C2951
10V
2.2u
2 VSS 5
VSS
3 ON/OFF 4
NC
IC2950
C0CBCAG00031
1.2V
ACTIVE ANTENNA
R2930
15k
TUNER5V
SUB6V
C2959 C2961
16V
R2961 10V
0 0.1u 1u
VIN
VSS
CE
R2960
10k IC2952
C0DBGYY00281
TNR5V
DET_HOGO
P5V
R5420
27k
D5454
B0ADEJ000035
TO 18/22
STB_5V_SWON
R5421
100k
R5423
100k
109 110
SUB3.3V
L2950
J0JHC0000045
C2950
10V
1u
PG-ACTIVE_ANTENNA_DET TO 6/22
TNR5V
R2959 Demod
TO 1,22/22
0
*L2901
J0JCC0000278
VOUT
FE-OUT_SCL
FE-OUT_SDA
NC
*L2900
J0JCC0000278
Demod
TO 22/22
IFAGC
IFD1
IFD2
RESET_POWER_DET
SUB3.3V
Peaks-COMMON
TO 19/22
R5486
47k VJ5486
POWER_DET PD_XIRQ5
S
SUB5V
GENX-DEST TO 6/22
R5485
100
R5412
NG-SW_OFF_DET
27k
D5470
B0ADEJ000035
SG-P3.3V_DET TO 6,14,15/22
Q5433
DSC2001S0L
R5422
68k
PG-P5V_DET TO 6,14/22
Q5434
DSC2001S0L
R5424
68k
GENX-DEST TO 6/22
R5470
2.2k
SG-DTV_XRST
SUB3.3V
R5472
47
C5473
25V
Peaks-COMMON TO 19/22 0.01u
R5471 R5473
100 TP5470 47k
PD_XRST
NRST ADD FOR A-CHIP PA_NRST
R5155
100
C5470 OUT GND
16V Vdd
0.01u
Cd NC
C5471
10V
0.047u
111 112
TP5401
Q5478
DSC200100L
R5413
100k
C5474
R5571
16V
68k
0.1u
STB_RST TO 6/22
Q5475
R5418
100k
DSC2001S0L
C5475
R5419 R5481
10V
68k 4.7k
0.47u
TO 6/22
SG-PD4H_DRVRST
TO 18/22
SOS4_PS
SOS6_SC1
SOS7_SC2
TO 14/22
SOS8_SS
SC_UHZ
F15V
R5474
10k
R5475
12k
PD4_SOS
TO 14/22
SOS_DCC
STB3.3V
R5476
D5450
IC5470 47k B0ADCJ000100
R5479
C0EBM0000026
8.2k
R5477
RESET
10k
TO 6,18/22 SG-TV_SUB_ON Q5476
B1ABCF000231
R5478
47k
113 114
59
!
*TU2901
ENGF7801KF
DVB TUNER 1 ACT5V
TNR5V
C2905 C2907
+B_active_antenna
10V 16V 1
C2917
100u 0.1u
BB 50V
2200p
2
RF-AGC_Monitor
3 C2911
16V
0.1u
ADV
NC
5
BT_Monitor
6
Audio-out
8 L2904
J0JCC0000278 FE1.2V
SIF-out
9 *L2905 AVSW
VB1 J0JHC0000046
10
C2910
Video-out
16V
11
0.1u R2918
0
SCL
13 SUB_AI_3.3V
SDA
*L5251
14
J0JCC0000278
VB2
15
*C2909
0
*R2907 IFAGC 16V
IF_AGC
0.1u *R2926
16
RESET 68
17
*C2908
16V
0.1u
IFD1
IFD-out1
19
IFD2
IFD-out2
20
IF_Monitor
21
GENX
*R2914
10k
IFAGC
IFD1
IFD2
FC
SUB9V
GND
17 16
SUB3.3V
PGND
18 FB 15
DRV
19 MONITOR_MUTE 14
R5493
DTV5VOUT 10k
DTB9V
20 13
VJ5451
DTV5VIN
S 21 AUDIO_MUTE_IN 12
C5482
EN_DCDC 10V
MUTE_VCC
22 11 220u
C5485
CD
16V
23 SP_MUTE 10
0.1u
STB_RST
STB_RST
AMUTE
24 9
R5489 0
DRVRST
25 STB3.3V 8
STB5V_SW_ON
STB5V
26 7
C5490
P_SOS4 16V
STB1.2V R5457
27 6 0.1u
0
SC_SOS6
PD4H_DRVRST TO 14/22
28 DRVRST_PD4 5
SC_SOS7 PG-PANEL_SOS TO 6/22
PANEL_SOS
29 4
SS_SOS8
30 TEST 3 R5528
10k
D_SOS_RSV
PG-PANEL_VCC_ON TO 6,14/22
P3.3V
31 2
SC_OHZ TO 14/22
D_UHZ
32 UHZ 1
IC5481
C5435 C5436 C5437 C5438
16V 16V 16V 16V C1ZBZ0004161
0.1u 0.1u 0.1u 0.1u
ANALOG-ASIC
115 116
TO 9/22
SIF
TO 11/22
MAIN_RF_CVBS
AA_FE_RST FE_XRST / SDRAM_CHK
TO 2,3,4,22/22
TO 6/22
SG-RF_AFT1
AVSW/A-Chip_A
TO 9,11/22
HP_MUTE_
STB-RESET-LCD/PDP TO 6/22
STB_RST
SG-MON_MUTE
SG-SP_HP_MUTE
STB-RESET-MODEL
ADV_A-DEST TO 9/22
AMP_MUTE
STB5V
STB3.3V SUB5V
L5480
J0JYC0000068
R5482
C5487 15
6.3V
1u D5481 D5482
B0JCME000076 B0ACCJ000048
C5488
6.3V
1u
117