A-Board (14/26) Schematic Diagram - Panasonic TX-P42VT20E Service Manual

13.19. A-Board (14/26) Schematic Diagram

! A-BOARD (14/25)
TUNER1.2V
L2950
J0JHC0000045
FE1.2V
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
TO 7/26
PG-ACTIVE_ANTENNA_DET
R2930
15k
TUNER5V
IC2952
C0DBGYY00281
SUB6V
C2959 C2961 TNR5V
TP2951
16V 10V
R2961 0.1u 1u R2959
VIN VOUT
VSS
CE NC
R2960
10k
SUB3.3V
Peaks-COMMON TO 23/26
R5486
47k
POWER_DET PD_XIRQ5
GENX-DEST
TO 7/26
R5485
100
NG-SW_OFF_DET
TO 22/26
STB_5V_SWON
GENX-DEST
TO 7/26
R5470
2.2k
SG-DTV_XRST
R5472
47
Peaks-COMMON
TO 23/26
R5471
100
TP5470
PD_XRST
PA_NRST
R5155
NRST ADD FOR A-CHIP
100
118 119
TUNER,STB-RESET
SUB3.3V
TNR5V
POWER OFF DET
VJ5486
VJUMP1005-S
SUB5V
R5412
27k
D5470
B0ADEJ000035
Q5478
DSC200100L
R5413
100k
C5474
R5571
16V
68k
0.1u
Q5475
DSC2001S0L
R5418
100k
C5475
R5419
10V
68k
0.47u
Peaks-RESET F15V
SUB3.3V
C5473
25V
R5473 0.01u
47k
C5470 OUT GND
16V Vdd
0.01u
IC5470
Cd NC
C0EBM0000026
C5471
10V
RESET
0.047u
120 121
!
*TU2901A
ENG37F03KF
DVB TUNER 1
TNR5V
+B_active_antenna
C2905
C2907
10V 16V
100u 0.1u
BT_Monitor
Audio-out
SIF-out
C2910
Video-out
16V
0.1u
SCL
SDA
VB2
*C2909
16V
IF_AGC
0.1u
RESET
IIC_From_Demod
C2908
16V
0.1u IFD-out1
TO 1,26/26
*L2901 IFD-out2
J0JCC0000278
FE-OUT_SCL
IF_Monitor
FE-OUT_SDA
*L2900
J0JCC0000278
From/To_Demod
TO 26/26
IFAGC
IFD1
IFD2
AVSW-DEST
HP_MUTE_
TP5432
IC5482
C1ZBZ0003972
ANALOG-ASIC
FB
15 MONITOR_MUTE
GND
16
FC
17 AUDIO_MUTE_IN
PGND
18 MUTE_VCC
DRV
SP_MUTE
19
DTV5VOUT
20
VJ5452
DTV5VIN
S STB3.3V
21
EN_DCDC
22
C5512
CD
16V
23
0.1u
STB_RST
24
STB_RST
SCL
GenX-DEST TO 7/26 25
PANEL
SDA
26
SEL
G-GRAB_MODULE_IIC CLKOUT
27
CLKIN
EN_CLKBF
28
R5526
10k
122 123
69
ACT5V
*C2917
50V
2200p
1
BB
2
RF-AGC_Monitor
3 C2911
16V
0.1u to ADV
NC
5 TO 10/26
6
SIF
L2904
8
J0JCC0000278 FE1.2V
to AVSW
9
*L2905
VB1 J0JHC0000046
10 TO 12/26
11
R2918 MAIN_RF_CVBS
0
13
SUB_AI_3.3V
*L5251
14
J0JCC0000278
15 *R2907
0 IFAGC TO 2,4,6,26/26
*R2926
16
68
AA_FE_RST
17 FE_XRST/SDRAM_CHK
IFD1
19
IFD2
20
21
GENX
TO 7/26
SG-RF_AFT1
*R2914
10k
IFAGC
IFD1
IFD2
TO 10,12/26
STB-RESET-LCD/PDP
TO 7/26
SUB3.3V
SUB9V
14 STB-RESET-MODEL
ADV_A-DEST
DTB9V
13 R5535
10k
12
C5492
10V
11 220u
STB5V SUB5V
10
STB3.3V
AMUTE 9 L5481
J0JYC0000068
R5497
8
15
C5497
6.3V
STB5V 7
1u
SCL0
6
Peaks
SEL=L
SDA0 5
C5498
6.3V
SCL1
4 1u
TV-GenX
SEL=H
SDA1 3
2 STB-RESET-LCD/PDP
1
124 125
STB_RST
SG-MON_MUTE
SG-SP_HP_MUTE
AMP_MUTE TO 10/26
PEAKS_SCL2
TO 1/26
PEAKS_SDA2
ADJ-GENX_SCL
TO 1,22/26
ADJ_GENX_SDA
GENX7_SDA
TO 15,22/26
GENX7_SCL
126