Board; Ref.no.:10,000 Series - Sony DCR-TRV320 Service Manual

DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
TRV620E/TRV720/TRV720E
VC-235 (Hi8/Std8 PB AMP) SCHEMATIC DIAGRAM • See page 4-11 for VC-235 printed wiring board. • See page 4-120 for waveforms.
1 2 3
VC-235 BOARD (9/16)
A Hi8/Std8 PB AMP (RF8 BLOCK)

-REF.NO.:10,000 SERIES-

XX MARK:NO MOUNT
NO MARK:REC/PB MODE
R:REC MODE
P:Digital8 PB MODE
C:Hi8/Std8 PB MODE
B
C
D
REC DUMP1
GND
REC1 OUT
C3201
PB1 IN
0.01u
4.7
VCC AMP
E
PB DUMP1
PB DUMP2
BIASADJ
PB2 IN
REC2 OUT
GND
REC DUMP2
F
G
05
H
Hi8/Std PB AMP
VC-235 (9/16)
4 5 6
L3201
22uH
Hi8/Std8
C3203
10u
6.3V C3204
TA A 0.01u
C3208
0.01u
C3202
0.01u
24 23 22 21 20 19 18 17 16 15 14 13
R3205
470k
2.4
30 DOC_DET
29
R0/P0/C1.4
CLPFOUT
R4.4/P4.4/C3.7
AGC TC
R0/P0/C2
RF AGCOUT
C3210
R0/P0/C1
4700p
IC3201
RP_IR
CXA3265R-T4
0
DOP
IC3201
R0/P0/C2.1
Y/C/ATF IN
R0/P2.6/C2.6
Hi8/Std8 PB AMP
YLPFOUT/CARDETOUT
Y MIX
0.8 MT_CONT
REC_Y/MT_CONT
4.7
VCC3
AFM IN
37 38 39 40 41 42 43 44 45 46 47 48
C3218
0.01u
4-31
7 8 9
Q3202
XX
C3213
0.047u
R3207
1608
R3208
XX
XX
0
0
Q3201
RN1104F(TPL3)
SWITCH
C3215
0.01u
DOC_DET
Hi8/Std8 Hi8/Std8
R3206 470k
C3211
Hi8/Std8
0.01u
RP_IR
C3212
0.01u
MT_CONT
R3210
10k
C3214
R3213
0.01u
470k
R3212
5 4
560k
- +
1 2 3
0.9
R0/P2.5/C2.5
C3217
0.01u C3216
R3214
220k
10 11 12
RP_4.75V
A_2.8V
REG_GND
Hi8/Std8 Hi8/Std8
DV_PB_RF
PB_RF
Hi8/Std8
F0_ADJ_RF_IN
RF_ENV
PB_C_RF
Hi8/Std8
AGC_SLOW
RP_PB_MODE
Hi8/Std8
Hi8/Std8
R3209
XX
R3211
0
R0/P2.8/C2.8
IC3202
TA75S393F-TE85R
IC3202
XRF_AGC_OFF
MT_CONT
RF ENVELOPE MT_F0
DETECTOR
MT_Q
RP_IR
DOC_DET
0.1u
RF_ENV_LEVEL
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y Y/CHROMA
PB
REC
Ref.signal
4-32
13 14
62
VC-235 BOARD (16/16)
60
VC-235 BOARD (8/16)
63
VC-235 BOARD (15/16)
10
VC-235 BOARD (1/16)
64
VC-235 BOARD (12/16)
RP_POWER_SAVE
RF_ENV_DET
PB_C_RF
15
RF_AGC_OUT VC-235 BOARD (2/16)
DOP
65
RF_ENV_DET VC-235 BOARD (11/16)
MT_CONT
MT_F0
MT_Q
66
VC-235 BOARD (14/16)
RP_IR
DOC_DET
RF_AGC_CONT
AUDIO
SIGNAL
PB