A-Board (13/24) Schematic Diagram - Panasonic TX-P42G20E Service Manual

13.18. A-Board (13/24) Schematic Diagram

A-BOARD (13/24)
! TUNER
!
TU2901A
ENG37F03KF
TNR5V
+B_active_antenna
C2907
C2905 RF-AGC_Monitor
16V
10V
100u 0.1u
BT_Monitor
Audio-out
SIF-out
VB1
C2910 Video-out
16V
IIC_From_Demod 0.1u
L2901
J0JCC0000278
SCL
FE-OUT_SCL
SDA
FE-OUT_SDA
L2900
VB2
J0JCC0000278
TO 1,24/24
IF_AGC
RESET
C2908
16V
0.1u
IFD-out1
IFD-out2
IF_Monitor
Demod
TO 24/24
IFAGC
IFD1
IFD2
GENX-DEST
TO 6/24
R5470
2.2k
SG-DTV_XRST
Peaks-COMMON
TO 21/24
R5471
100
PD_XRST
NRST ADD FOR A-CHIP PA_NRST
R5155
100
109 110
TUNER
ACT5V
1 C2917
BB 50V
2200p
2
3 C2911
16V
0.1u
NC
5
6
FE1.2V
8 L2904
to ADV
J0JCC0000278
SIF
9 L2905 TO 9/24
J0JHC0000046
10
to AVSW
MAIN_RF_CVBS
11
TO 11/24
R2918
0
13
SUB_AI_3.3V
L5251
14
J0JCC0000278
15 R2907
C2909
0 IFAGC
16V
16
0.1u
AA_FE_RST TO 3,5,24/24
FE_XRST / SDRAM_CHK
17
R2926
68
IFD1
19
IFD2
20
21
to GENX
R2914
10k
SG-RF_AFT1 TO 6/24
IFAGC
IFD1
IFD2
F15V
R5474
10k
SUB3.3V C5473
R5475
25V
12k
0.01u
R5473
TP5470
47k
C5470
16V
OUT GND
0.01u RESET IC
Vdd
Cd NC
IC5470
C5471
C0EBM0000026
10V
0.047u
RESET
111 112
TUNER1.2V
L2950
J0JHC0000045
FE1.2V TP2952
1 VOUT 6
C2951 VIN
C2950
10V 10V
2.2u 1u
2 VSS 5
VSS
3 ON/OFF 4
NC
IC2950
C0CBCAG00031
1.2V
SUB3.3V
Peaks-COMMON
TO 21/24
R5486
47k
POWER_DET PD_XIRQ5
GENX-DEST
TO 6/24
R5485
100
NG-SW_OFF_DET
SUB5V
R5412
27k
D5470
B0ADEJ000035
TO 20/24 STB_5V_SWON
P5V
R5420
27k
TO 6,16,17/24 SG-P3.3V_DET
D5454
B0ADEJ000035
R5421
Q5433 100k
DSC2001S0L
R5422
68k
TO 6,16/24 PG-P5V_DET
R5423
Q5434 100k
DSC2001S0L
R5424
68k
TO 6/24 SG-PD4H_DRVRST
R5481
4.7k
TO 20/24 SOS4_PS
SOS6_SC1
TO 16/24 SOS7_SC2
D5450
SOS8_SS
B0ADCJ000100
PD4H_SOS
TO 16/24 SOS_DCC
R5476
SC_UHZ
47k STB3.3V
C5436
C5435
16V 16V
R5479 0.1u 0.1u
8.2k
R5477
10k
TO 6,20/24 SG-TV_SUB_ON Q5476
B1ABCF000231
R5478
47k
113 114
60
ACTIVE ANTENNA
SUB3.3V
R2930 TO 6/24
15k
PG-ACTIVE_ANTENNA_DET
TUNER5V
SUB6V
TNR5V
R2959
0
R2961
C2959 C2961
0
16V 10V
1u VIN VOUT
0.1u
VSS
CE NC
R2960
IC2952
10k
C0DBGYY00281
TNR5V
VJ5486
S
R5413
100k Q5478
DSC200100L
R5571 C5474
16V
68k
0.1u
AVSW/A-Chip_A
Q5475
DSC2001S0L
R5418
100k
C5475 HP_MUTE_
R5419 10V
0.47u
68k
STB-RESET-LCD/PDP
TP5401
TO 6/24
STB_RST
SG-MON_MUTE
FC
SG-SP_HP_MUTE
GND
17 16
PGND
18 FB 15 SUB9V SUB3.3V
DRV
MONITOR_MUTE
19 14
Sheet STB-RESET-MODEL
DTV5VOUT
20 DTB9V 13 R5493
Sheet ADV_A-DEST
VJ5451 10k
DTV5VIN
S 21 AUDIO_MUTE_IN 12 C5482
EN_DCDC 10V
AMP_MUTE
MUTE_VCC
22 11 220u
C5485
CD
0.1u 23 SP_MUTE 10
16V
STB_RST
AMUTE
24 9
R5489
DRVRST
25 STB3.3V 8
0
STB5V_SW_ON
STB5V
26 7 C5490
0.1u
P_SOS4 16V
27 STB1.2V 6
R5457
SC_SOS6 PD4H_DRVRST TO 16/24
DRVRST_PD4
28 5 0
SC_SOS7
PG-PANEL_SOS TO 6/24
29 PANEL_SOS 4
SS_SOS8
TEST R5528
30 3
10k
D_SOS_RSV
PG-PANEL_VCC_ON TO 6,16/24
31 P3.3V 2
SC_OHZ TO 16/24
D_UHZ
32 UHZ 1
C5437 C5438
IC5481
16V 16V
0.1u
0.1u
C1ZBZ0004161
ANALOG-ASIC
115 116
TO 9,11/24
TO 9/24
STB3.3V STB5V SUB5V
L5480
J0JYC0000068
R5482
C5487
15
6.3V
1u
D5481
D5482
B0JCME000076 B0ACCJ000048
C5488
6.3V
1u
117