Sony DCR-TRV940 Service Manual page 28

COVER
COVER
For Schematic Diagram
• Refer to page 4-97 for printed wiring board.
• Refer to page 4-129 for waveforms.
1 2 3 4
DB-014 BOARD (7/9)
EVF DRIVE,TIMING GENERATOR
A
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
B
C
L4201
10uH
D
C4201
10u
6.3V
92 PANEL/EVF_2.8V
EVF_13.5V
(9/9)
E
G
EVF_R
EVF_G/BW_Y
EVF_B
VCO
VCO
PANEL_XHD
F 33
PANEL_XHD
PANEL_XVD
PANEL_XVD
(8/9)
XCS_EVF
XCS_EVF
XRST_VTR
LED_DA
G
EVF_TALLY
34
EVF_4.6V
(9/9)
VD_SCK
91
VD_SCK
VD_SO
VD_SO
H
(8/9)
89
REG_GND
(9/9)
I
J
K
SIGNAL PATH
VIDEO SIGNAL
CHROMA
REC
L PB
05
4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS
5 6 7 8
R4204
XX
2 2.8 0 1.4
36 35 34 33 32 31 30 29
VD_SCK
C4203
XX
N.C
XC_SAVE 2.9
XC.SAVE
2.8
R4201
470k XSCK
XTG_SO 2.2
SI
XCS_EVF 2.8
XCS
IC4201
2.9
Vcc1
LCD DRIVER
2.9
R4202
IC4201
33k
TRAP_ADJ CXA3289AR-T4
0.5%
1.2
LPF_ADJ
C4202
0.1u XP_SAVE 2.9
XP.SAVE
3
C4204
0.01u 1.8
B_IN
C4205
1.8
0.01u
2
G_IN
C4206
0.01u 1.8
R_IN
1
1 2 3 4 5 6 7 8
2.9 0.9 2.9 0.9 2.9 1.4 1.4 1.4
R4207
68k
R4206
47k
FB4201
R4208
22k
C4208
0.1u
2.8 0.9 2.9 0.9
36 35 34 33
2.8
BGP
XCLP
TEST
SBLK 0
SBLK
1.4
FRP
FRP
TEST
VD_SCK 2.8
XSCK
2.9
VDD
XCS_EVF 2.8
XCS
2.1
XTG_SO
SO
VD_SO 2.7
SI
VDO
PANEL_XVD 2.8
XVD
8
1 2 3 4
7
2.6 0.3
PANEL_XHD
VCO
4-59
DB-014 BOARD SIDE A DB-014 BOARD SIDE A DB-014 BOARD SIDE B DB-014 BOARD SIDE B
9 10 11 12
L4203 C4211
10uH 3.3u
20V
C4213
0.1u
13.5
28 27 26 25
R4212
100
6.6
6
VB
C4215
3.6
2.2u
B_DC_DET
R4213
6.7
100
5
VG
C4216
3.9
2.2u
G_DC_DET
R4214
6.7 100
4
VR
3.6
C4217
2.2u
R_DC_DET
GND2
GND1
C4219
2.2u
VREF
R4216
TG14
47k
13.5
0.5% TG15
Vcc3
R4218
6.4 0 TG16
COM_OUT
TG17
6.4
TG21
COM_IN
R4217
C4218 TG22
1M
4.7u
0.5%
TG23
TG24
9 10 11 12
R4219
XX
1.4 3.3 0.9
C4210 R4211
0.1u 100k D4201
1SV288(TPH3)
R4210
1M
C4212
0.001u
C4214
L4202
33p
4.7uH
C4209 R4209
560p 68k
9
0.9 1.4 2.9 1.4 1.4 2.9
32 31 30 29 28 27 26 25
0 TG24
BLK
R4222 R4224
0 100
1.4 TG23
HCK1
1.4 TG22
HCK2
R4221 R4223
0 0 100
TG21
HST
RGT
IC4202
2.9
VDD
TIMING GENERATOR
IC4202
CXD3501AR-T4 DCG/CLR
2.9 TG17
EN
2.9
TG16
STB
1.4
TG15
VCK
0 TG14
VST
N.C
5 6 7 8 9 10 11 12
2.9 2.9
DCR-TRV940/TRV940E/TRV950/TRV950E
13 14 15 16
CN7211 21P
1 EVF_VCC
2 EVF_GND
3 VST
4 VCK
5 STB
6 EN
7 HST
8 HCK2
9 HCK1
LB-080
10 BLK
R7200 0 CN6101
11 VB THROUGH THE
FP-547 FLEXIBLE
12 VR
(PAGE 4-77)
R7201 0
13 VG
14 COM
R7203
R7202
15 EVF_GND
XX
XX
16 EVF_GND
17 LED_ON/OFF
18 LED_DA
1.8
19 XEVF_TALLY
20 EVF_4.6V
21 N.C.
Q7200
0
UN9211J-(K8).SO
TALLY LED DRIVE
4-60
Ver 1.1 2002. 09
DB-014 (7/9)