A-Board (14/25) Schematic Diagram - Panasonic TH-P50VT20D Service Manual

12.18. A-Board (14/25) Schematic Diagram

! A-BOARD (14/25) TUNER,STB-RESET
TUNER1.2V
L2950
FE1.2V J0JHC0000045
TP2952
1 VOUT 6
VIN
C2951 C2950
10V 10V
2.2u 1u
2 VSS 5
VSS
3 ON/OFF 4
NC
IC2950
C0CBCAG00031
1.2V
ACTIVE ANTENNA
PG-ACTIVE_ANTENNA_DET
R2930
15k
TUNER5V
IC2952
C0DBGYY00281
SUB6V
TNR5V
R2961
0
C2961
C2959 R2959
16V 10V
VIN VOUT 0
0.1u 1u
VSS
CE NC
R2960
10k
Peaks-COMMON
GENX-DEST
TO 7/25
TO 21/25
GENX-DEST
R5470
2.2k
TO 7/25
SG-DTV_XRST
R5472
47
Peaks-COMMON TO 22/25
R5471
100
PD_XRST
NRST ADD FOR A-CHIP PA_NRST
R5155
100
118 119
ADV TO 12,13/25
MAIN_TNR_SW1
SUB3.3V AVSW_R078PIN_FBIN2/O2
AVSW_R076PIN_FBIN/O1
MAIN_TNR_SW2
SUB3.3V
*Q2903
B1CBHD000002
IIC_From_Peaks
*R2908
6.8k
A-TNR_SCL
TO 1/25
*R2921
A-TNR_SDA
*Q2904
B1CBHD000002
TO 7/25
TNR5V
RESET_POWER_DET
SUB3.3V
R5486
47k VJ5486
POWER_DET
TO 22/25 PD_XIRQ5
SUB5V
R5485
100
NG-SW_OFF_DET
R5412
27k
Q5478
D5470
DSC200100L
B0ADEJ000035 R5413
100k
STB_5V_SWON
C5474
R5571
16V
68k
0.1u
Q5475
DSC2001S0L
R5418
100k
C5475
R5419
10V
68k
0.47u
F15V
R5474
SUB3.3V
10k
C5473
R5475
25V
12k
R5473 0.01u
TP5470 47k
C5470 OUT GND
Vdd IC5470
16V
0.01u
Cd NC C0EBM0000026
RESET
C5471
10V
0.047u
120 121
TNR5V
C2905
10V
100u
*L2902
J0JHC0000046 C2907
16V
0.1u
*R2902
0
*L2909
6.8k
J0JCC0000278
C2910
16V
0.1u
*L2910
J0JCC0000278
*R2903
0
*R2905
*R2904
0
0
C2908
16V
0.1u
*R2906
0
AVSW-DEST
HP_MUTE_
TP5432
IC5482
C1ZBZ0003972
ANALOG-ASIC
FB
15 MONITOR_MUTE
GND
16 DTB9V
FC
AUDIO_MUTE_IN
17
PGND
18 MUTE_VCC
DRV
SP_MUTE
19
DTV5VOUT
20 AMUTE
DTV5VIN
VJ5452 STB3.3V
S 21
EN_DCDC
22 STB5V
C5512
CD
0.1u
23
16V
STB_RST SEL=L
STB_RST
24
SCL
GenX-DEST 25
TO 7/25
PANEL SEL=H
SDA
26
SEL
G-GRAB_MODULE_IIC
27 CLKOUT
CLKIN
EN_CLKBF
28
R5526
10k
122 123
64
TUNER
*TU2901C
!
ACT5V
ENG39F02GF
NC
1
BB
2
RF-AGC_Monitor
3
C2911
16V
0.1u
NC
5
BT_Monitor
6
NC
L2904
8
SIF-OUT J0JCC0000278
9
+B
10
Video-out
11
SCL
13
SDA
14
AFT_out
15
SW1
16
VB
17
NC
19
SW2
20
IF_Monitor
21
*R2911
220
TO 10,12/25
STB-RESET-LCD/PDP
SUB9V
NET050247
SUB3.3V
NET050231
14
STB-RESET-MODEL
13
R5535 ADV_A-DEST
10k
12 AMP_MUTE
C5492
10V
11
220u
STB5V SUB5V
10
STB3.3V
L5481
9
J0JYC0000068
R5497
8 C5497
15
6.3V
7 1u
D5487 D5488
SCL0
6 B0JCME000076 B0ACCJ000048
Peaks
SDA0 5
C5498
6.3V
SCL1 1u
4 TV-GenX
SDA1
3
2
STB-RESET-LCD/PDP
1
124 125
ADV TO 10/25
SIF
AVSW TO 12/25
R2918
0
MAIN_RF_CVBS
GENX
TO 7/25
SG-RF_AFT1
*C2919
50V
0.01u
STB_RST
SG-MON_MUTE TO 7/25
SG-SP_HP_MUTE
AMP_MUTE TO 10/25
PEAKS_SCL2
TO 1/25
PEAKS_SDA2
ADJ-GENX_SCL
TO 1,21/25
ADJ_GENX_SDA
GENX7_SDA
TO 15,21/25
GENX7_SCL
126