Sony DCR-TRV230 Service Manual page 91

For Schematic Diagram
• Refer to page 4-11 for printed wiring board.
• Refer to page 4-104 for waveforms.
2 3
1
VC-254 BOARD(12/18)
EVR, LASER LINK(ER,IR BLOCK)
A
-REF.NO.:10000 SERIES-
XX MARK:NO MOUNT
B
C2292 C2293
0.01u
22u
B 6.3V
C
IC2291
EVR
BH2222FV-E2
IC2291
4.7
2.5
A_4.9V(VCC) CLK
R0.3
P0.7
A_4.9V(VDD2) DI
MT_CONT
0.8 0.9
REC_Y/MT_CONT DOC_DET
RF_ENV_LEVEL
2.9
REC_L_CONT RF_AGC_CONT
MT_F0
2.1 0
MT_F0 RP_IR
IR_CARR
D
2.9 2.0
REC_BIAS AFC_F0_ADJ
IR_A_DEV
0.9 1.6
ACC/RF_CONT FRQ_TUNE
CFG_DUTY
1.6 1.0
CFG_DUTY AGC_CONT2
1.5M_DEV
1.8 0.5
1.5M_DEV MT_Q
AU_BPF
1.9 0.9
AU_BPF HALL_REF
1.7M_DEV
1.6 1.2
1.7M_DEV HALL_GAIN
ZOOM_MIC_CONT
2.8 0.8 HALL_OFFSET
A_FADE HALL_OFFSET
FB2291 0uH
2.8 2.8
D_3.2V(VDD1) SWP(SEL)
E
0
GND STB(LD)
C2291
1u
B
F
G
16
4 5 6
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
NO MARK:IR ON/IR OFF MODE
( ):IR ON MODE
[ ]:IR OFF MODE
L2291
10uH
IR_CARR
RP_IR
RP_IR
MT_CONT
MT_CONT
MT_F0
MT_F0
92
DOC_DET TO(9/18)
DOC_DET
MT_Q
MT_Q
XVC_SCK RF_ENV_LEVEL
RF_ENV_LEVEL
VC_SO CFG_DUTY
CFG_DUTY 124
TO(14/18)
IR_V_DEV
DOC_DET VC_SO
VC_SO
XVC_SCK
XVC_SCK
119
TO(11/18)
RP_IR DA_STB IR_A_DEV
DA_STB
AFC_F0_ADJ VC_RF_SWP
VC_RF_SWP
FRQ_TUNE
IR_V_DEV
77
TO(7/18) IR_VIDEO
MT_Q C3902
10u
4V
HALL_REF HALL_GAIN
HALL_GAIN
HALL_GAIN HALL_OFFSET
24
HALL_OFFSET TO(3/18)
HALL_REF
HALL_REF
VC_RF_SWP
IR_L
DA_STB
128
TO(15/18)
IR_R
FRQ_TUNE
4
FRQ_TUNE
TO(1/18)
ZOOM_MIC_CONT
125
ZOOM_MIC_CONT TO(16/18)
1.5M_DEV
1.5M_DEV
1.7M_DEV
126
1.7M_DEV
TO(15/18)
AU_BPF
AU_BPF
IR_CARR
IR_V_DEV
IR_A_DEV
AFC_F0_ADJ
15
AFC_F0_ADJ TO(2/18)
32
TO(4/18) IR_FSC
IR_ON
102
TO(10/18)
SIRCS_PWM
4-37
7 8 9
C3914 C3912
C3904
10u 0.01u
0.01u
6.3V
B
B
C3913
R3908 C3911
510p
0.01u L3902
12k
CH
B
5.6uH
R3903
C3910
C3909
33k R3912
4.7u
0.01u
330
6.3V
B
R3913
1k
C3917
0.1u
36 35 34 33 32 31 30 29 28 27 26 25
R3904
4700
R3905
CLAMP C1
33k
NC
1.0
C3901 IC3901
V DEV ADJ
XX
(2.3)/ NC
[3.3] IR DRIVE
V IN
39
(1.3)/[0] IC3901
REG
LA9511WL-TBM
C3908
1u B
NC
(2.3)/[3.6]
REF
C3905
0.3
0.47u
A DEV ADJ
B
(2.3)/[3.6]
Lch IN 37
(0.9)/[0]
ALC C
(2.3)/[3.6]
Rch IN
C3906
0.47u
B
1 2 3 4 5 6 7 8 9 10 11 12
3.3 3.4
C3915
0.01u
C3903 C3934 R3911 B
10u 1u
22k
6.3V B ± 0.5%
R3909
1M
C3919 C3916 C3920
0.47u 0.47u
1u
B B
B
10 11 12
R3940
L3901
10uH
C3918
C3921 C3923
4p 33p
39p
CH CH CH
L3904
33uH
L3903
33uH
B R3936
4.7
1500
Q3903
2SA1774HT2L
SWITCH
(4.6)/[0]
38
(3.9)/
R3923
[4.7]
470
DRV CL OUT R3948
(1.3)/
XX
[0]
NC
R3939
(0.6)/[0]
0
DRV EM OUT
(2.0)/[0.5]
Q3902
DRV SW
2SA1226-T1E4
(1.3)/[0]
MIX OUT BUFFER
C3936
R3921
0.01u
470
NC R3924
B
(1.3)/[0] 470
MIX IN
C3926
R3919 0.01u
NC
560 B
(2.3)/[2.7]
VRF OUT
(2.3)/[2.6]
ARF OUT
R3920
(3.0)/[0]
6800
STBY
(2.9)/[0]
CHUP C
SIGNAL PATH
C3927
0.01u
B
CHROMA
R3922
39k
REC
4.7 PB
R3918
150k
C3925
C3924
C3922
1u 0.1u
1u
B B
B
C3928
22u
4V
4-38
DCR-TRV230/TRV330/TRV530
13 14
AU_2.8V
0
144
A_4.75V TO(18/18)
A_2.8V
R3941
XX
REG_GND
IR_DRV_EM 145
TO(17/18(CN1116))
VIDEO SIGNAL
AUDIO
Y Y/CHROMA SIGNAL
EVR, LASER LINK
VC-254 (12/18)