DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
TRV620E/TRV720/TRV720E
VC-235 (DC/DC CONVERTER) SCHEMATIC DIAGRAM • See page 4-11 for VC-235 printed wiring board. • See page 4-121 for waveforms.
4-45
4-46
DC/DC CONVERTER
VC-235 (16/16)
0.9
2
1.4
0.8
0.7
1.2
0
1.5
0
2
1.5
8.2
3
1.6
0.8
R1.1/P1.1/C0.6
R3.3/P3.3/C1.8
0.8
0.5
0.5
1.4
1.1
1.3
1.2
5.1
8.2
8.1
6.4
7.7
8.2
8.1
7.1
8.6
8.5
6.9
8
8
7
8.6
2.7
8.5
7
8
8.2
8.2
6.5
7.8
8
8.4
6.8
2.2
1.7
2.9
1.5
0.9
4.7
1.5
1
13.2
1.6
8.2
7.8
4.7
8.2
0
8
2.9
8.2
7.9
2.2
2
8.2
8
2.7
8.2
8
R3.3/
P3.3/
C1.8
8.2
8.1
1.4
8.2
7.7
5.1
8.2
7.9
8.2
1.5 0.9
1.7
4.9
1.6
-0.9
-7.8
0
2.4
4.7
4.6
0
R-6.8/
P0.3/
C0.3
R-7.2/
P-7.8/
C-7.8
0
R0.5/
P0/
C0
1.2
2.8
1.9
2.8
6.7
6.7
5.9
-22.2
-15.9
-0.1
-21.6
0.5
R2.4/
P0/
C0
4.2R2.9/P0/C0
4.7
P12.4/
P0/
C0
13.4
R12.8/P13.4/C13.4
R4.7/
P0/
C0
3
R1/P1/C0.5
41
42
43
44
45
46
40
P:Digital8 PB MODE
C:Hi8/Std8 PB MODE
NO MARK:REC/PB MODE
R:REC MODE
LCD EVF MODEL
CRT EVF MODEL:DCR-TRV320/TRV320E:E,HK,AUS,CN/TRV320P/TRV420E:CN/TRV520/TRV520E:E,HK,AUS,CN,JE/TRV520P
LCD EVF MODEL:DCR-TRV320E:AEP,UK,EE,NE,RU/TRV420E:AEP/TRV520E:AEP/TRV525/TRV620E/TRV720/TRV720E
CRT EVF MODEL
:3/3.5/4 LCD MODEL
:2.5 LCD MODEL
2.5 LCD MODEL:DCR-TRV320/TRV320E/TRV320P
3/3.5/4 LCD MODEL:DCR-TRV420E/TRV520/TRV520E/TRV520P/TRV525/TRV620E/TRV720/TRV720E
LCD EVF MODEL
:2.5 LCD MODEL
:3/3.5 LCD MODEL
:4 LCD MODEL
3/3.5 LCD MODEL:DCR-TRV420E/TRV520/TRV520E/TRV520P/TRV525/TRV620E
4 LCD MODEL:DCR-TRV720/TRV720E
C1329
4.7u
10V
C1338
4.7u
C1326
10V
4.7u
R1319
47k
Q1314
RN1104F(TPL3)
D1302
MA796-TX
33uH
L1301
C1323
4.7u
10V
L1304
22uH
L1303
22uH
C1330
4.7u
10V
C1337
4.7u
C1327
4.7u
10V
L1305
22uH
Q1307
SI2304DS-T1
C1331
4.7u
10V
L1302
22uH
L1307
4.7uH
L1308
4.7uH
LND133
A
C1336
22u
6.3V
A
C1340
10u
6.3V
A
R1320
22k
LND132
A
LND131
A
4.7u
10V
C1321
A_2.8V
A_2.8V
CAM_12V
CAM_-6.5V
D_2.8V
D_2.8V
A_4.75V
A_2.8V
DRUM_VS
CAP_VS
A_4.75V
EVF_BL
REG_GND
REG_GND
REG_GND
REG_GND
4700
R1312
10k
R1309
33k
R1311
22k
R1313
2200p
C1308
22k
R1306
0.01u
C1306
4700p
C1310
470p
C1309
1500p
C1311
33k
R1302
22k
R1301
0
R1307
3300p
C1307
0.001u
C1315
0.001u
C1318
0.001u
C1317
0.001u
C1316
0.001u
C1313
SI2304DS-T1
Q1308
MGSF1P02LT1
Q1319
1M
R1328
1M
R1329
UN9213J-(K8).SO
Q1317
0.01
C1351
100k
R1334
2SC4738F-Y/GR(TPL3)
Q1320
2SA1832F-Y/GR(TPL3)
Q1323
100k
R1338
5%
15k
R1340
22k
R1336
2SC4738F-Y/GR(TPL3)
Q1325
100k
R1335
2SC4738F-Y/GR(TPL3)
Q1324
2SA1832F-Y
/GR(TPL3)
Q1322
100k
R1337
68k
R1343
220k
R1342
2SA1832F-Y/GR(TPL3)
Q1326
100k
R1330
100k
R1323
2SC4738F-Y/GR(TPL3)
Q1316
2SA1832F-Y/GR(TPL3)
Q1315
220k
R1332
2SA1832F-Y/GR(TPL3)
Q1318
22k
R1327
4.7uH
L1315
4.7uHL1314
4.7uH
L1309
4.7uHL1312
L1316
22uH
4.7uHL1306
2012
2.2u
C1356
2012
2.2u
C1355
0.1u
C1352
220p
C1301
0.1u
C1304
0.1u
C1302
0.1u
C1303
0.047u
C1305
10u
6.3V
A
C1335
10u
6.3V
A
C1339
10u
6.3V
A
C1341
10u
6.3V
A
C1333
10u
6.3V
B
C1346
10u
6.3V
B
C1343
4.7u
10V
C1332
4.7u
10V
C1344
0.001u
C1319
1SS357-TPH3
D1301
1SS357-TPH3
D1305
4.7uH
L1310
10u
6.3V
C1334
CAP_ERROR
REG_GND
REG_GND
VTR_DD_ON
0.1u
C1342
10u
TA
20V
C1350
10u
TA
20V
B
C1354
47k
R1333
D_1.5V
47k
R1339
18k
R1331
DRUM_ERROR
2SB1581-T1
Q1311
2SC4738F-Y/GR(TPL3)
Q1310
2SC4738F-Y/GR(TPL3)
Q1313
2SA1832F-Y/GR(TPL3)
Q1312
10k
R1322
22k
R1321
4700
R1318
47k
R1317
4.7uHL1313
10u
6.3V
A
C1345
2SC4738F-Y/GR(TPL3)
Q1321
10u
6.3V
C1348
L1318
4.7uH
10u
10V
C1347
CPH6702-TL
Q1305
CPH6702-TL
Q1306
CPH6702-TL
Q1303
CPH6702-TL
Q1304
CPH6702-TL
Q1302
CPH6702-TL
Q1309
5%
4700
R1341
0.01u
C1328
IC1301
CXA3057R-T6
12345678910111213141516
17181920212223242526272829303132
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
22k
R1314
2200p
C1312
470p
C1314
22uH
L1320
0
R1310
0
R1305
470k
R1303
VTR_UNREG
1R1324
1R1325
XX
C1349
MT_GND
MT_GND
RN5RZ59BA-TL
IC1303
123
45
1SS357-TPH3
D1306
4.7u
C1359
4.7uH
L1311
10u
10V
A
C1357
XX
C1358
A_2.8V
CPH6102-TL
Q1301
10u
4V
A
C1322
10u
6.3V
A
C1320
4.7uH
L1321
D_1.9V
0
R1315
0
R1308
XXL1319
XX
L1322
10k
R1326
33k
R1304
EVF_13.3V
0
R1344
0.1u
1005
C1353
T1301
1
2
3
45
6
7
8
0
R1345
XX
R1346
TK11119SCL
IC1302
123
45
XX
C1324
XX
D1303
XX
D1304
10k
R1348
22k
R1347
XX
C1360
XCAM_MODE_SW
42P
CN1113
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
SHOE_ON
INIT_CHARGE_ON
FAST_CHARGE
DC_PACK_SW
BATT_SIG
XVTR_MODE_SW
XS/S_SW
XPHOTO_STBY_SW
CN1109 8P
1
2
3
4
5
6
7
8
SHOE_UNREG
1
A
BATT_UNREG
PC_UNREG
CAM_DD_ON
EVF_DD_ON
BATT/XEXT_SW
VTR_UNREG
VTR_UNREG
LND134
D_1.5V
D_2.8V
A_4.75V
MT_5V
D_2.8V
A_4.75V
A_2.8V
D_2.8V
A_4.75V
REG_GND
D_1.5V
D_2.8V
A_2.8V
AU_2.8V
RP_4.75V
EP_2.8V
A_2.8V
MT_5V
D_2.8V
REG_GND
RP_4.75V
REG_GND
RP_6.0V
D_2.8V
MT_5V
REG_GND
D_2.8V
REG_GND
D_2.8V
MT_5V
REG_GND
EVF_BL
EVF_BL_4.75V
AU_2.8V
A_4.75V
AU_4.75V
MT_5V
REG_GND
CL1300
AU_2.8V
A_4.75V
REG_GND
R1316
0
L1317
22uH
D_2.8V
MT_5V
A_4.75V
EVF_DD_ON
EVF_BL_4.75V
A_4.75V
LCD_4.75V
RP_4.75V
AU_4.75V
A_4.75V
D_2.8V
A_2.8V
PANEL_-15.3V
A_2.8V
AU_2.8V
EP_2.8V
A_4.75V
EVF_BL_4.75V
MT_5V
A_2.8V
D_2.8V
A_2.8V
D_2.8V
PANEL_13.3V
A_4.75V
D_2.8V
EP_2.8V
PANEL_4.75V
INIT_CHARGE_ON
XPHOTO_STBY_SW
XCAM_MODE_SW
DC_PACK_SW
SHOE_ON
FAST_CHARGE
XVTR_MODE_SW
XS/S_SW
BATT_SIG
INIT_CHARGE_ON
XPHOTO_STBY_SW
XCAM_MODE_SW
DC_PACK_SW
SHOE_ON
FAST_CHARGE
XVTR_MODE_SW
XS/S_SW
BATT_SIG
BATT/XEXT_SW
VTR_DD_ON
PANEL_-15.3V
CAM_DD_ON
EVF_DD_ON
CAM_DD_ON
BATT/XEXT_SW
VTR_DD_ON
A_4.75V
D_2.8V
A_4.75V
D_2.8V
A_2.8V
D_2.8V
A_4.75V
D_2.8V
A_2.8V
AU_2.8V
RP_4.75V
A_2.8v
EP_2.8V
A_2.8V
MT_5V
D_2.8V
RP_4.75V
MT_5V
D_2.8V
D_2.8V
D_2.8V
MT_5V
EVF_BL_4.75V
A_4.75V
AU_4.75V
AU_2.8V
MT_5V
AU_2.8V
A_4.75V
PANEL_13.3V
D_2.8V
CH-2
CAM_12.0V
FEED_BACK-5
OUTPUT_MONITOR-4
INV_INPUT-4
FEED_BACK-4
RT
CT
MOS_DUTY
GND
SOFT_START
VREF
SCP
VCC
STANDBY
STANDBY-7
FEED_BACK-3
STANDBY-3
INV_INPUT-3
OUTPUT_MONITOR-3
FEED_BACK-2
INV_INPUT-2
OUTPUT_MONITOR-2
FEED_BACK-1
INV_INPUT-1
OUTPUT_MONITOR-1
COMP
MOS_GATE-1
BOOT_CAP_H-1
BOOT_CAP_L-1
OUTPUT-1
OUTPUT-2
BOOT_CAP_L-2
BOOT_CAP_H-2
OUTPUT-6
BOOT_CAP_L-6
BOOT_CAP_H-6
OUTPUT_GND-4,5,6,7
BOOT_CAP_H-5
BOOT_CAP_L-5
OUTPUT-5
OUTPUT-4
BOOT_CAP_L-4
BOOT_CAP_H-4
MOS_GATE-4
OUTPUT_GND-1,2,3
BOOT_CAP_H-3
BOOT_CAP_L-3
OUTPUT-3
OUTPUT_
VCC-1,2,3
INV_INPUT-5
NONINV_INPUT-5
OUTPUT_MONITOR-5
FEED_BACK-6
INV_INPUT-6
NONINV_INPUT-6
OUTPUT_MONITOR-6
FEED_BACK-7
INV_INPUT-7
NONINV_INPUT-7
OUTPUT_MONITOR-7
OUTPUT_VCC-7
BOOT_CAP_H-7
BOOT_CAP_L-7
OUTPUT-7
OUTPUT_VCC
-4,5,6
VTR_UNREG
VTR_UNREG
SHOE_UNREG
SHOE_ON
SHOE_UNREG
BATT_UNREG(F302)
VTR_UNREG
REG_GND
REG_GND
REG_GND
XVTR_MODE_SW
XCAM_MODE_SW
XS/S_SW
XPHOTO_MODE_SW
BATT/XEXT_SW
BATT_SIG
FAST_CHARGE
DC_PACK_SW
INIT_CHARGE_ON
REG_GND
REG_GND
BATT_UNREG(F302)
REG_GND
REG_GND
REG_GND
REG_GND
VTR_UNREG
REG_GND
REG_GND
REG_GND
REG_GND
REG_GND
BL_REG_UNREG
PC_UNREG
C/D_VS_D1.5V
BL_REG_UNREG
C/D_VS_D1.5V
C/D_VS_D1.5V
BL_REG_UNREG
C/D_VS_D1.5V
BL_REG_UNREG
PC_UNREG
BL_REG
PANEL_13.3V
SE_GND
PANEL_2.8V
PANEL_-15.3V
BL_CONT
PANEL_4.75V
BL_GND
6
F
L
18
G
9
C
D
1916
VC-235 BOARD (16/16)
13 151211
E
32
B
174
I
2087
J
5
05
10 14
K
H
M
IC1301
DRUM/CAPSTAN PWM DRIVE
DC/DC CONTROL
IC1303
6V REG
1.9V REG
IC1302
1
2
3
6
5
4
45
6
321
1
2
34
5
6
1
2
3
6
5
4
1
2
3
4
5
6
3
5
1
6
4
2
1
2
34
5
6
REC/PBREC PB
SIGNAL PATH
Drum servo(speed and phase)
Capstan servo(speed and phase)
-REF.NO.:10,000 SERIES-
XX MARK:NO MOUNT
DC/DC CONVERTER (DD BLOCK)
CN254
(SEE PAGE 4-118)
Q1322,1324,1326
-15.3 REG
Q1320,1321,1323,1325
12V REG
Q1315,1316,1318
-6.5V REG
EMERGENCY
DETECTOR
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
SWITCHING
GND
1
VC-235 BOARD (1/16)
VC-235 BOARD (2/16)
14
23
VC-235 BOARD (3/16)
VC-235 BOARD (4/16)
30
VC-235 BOARD (5/16)
31
VC-235 BOARD (6/16)
37
VC-235 BOARD (1/16)
1
50
VC-235 BOARD (7/16)
69
VC-235 BOARD (10/16)
55
VC-235 BOARD (8/16)
VC-235 BOARD (11/16)
79
84
VC-235 BOARD (12/16)
89
VC-235 BOARD (13/16)
2221
93
VC-235 BOARD (15/16)
62
VC-235 BOARD (9/16)
VC-235 BOARD (14/16)
91
37
VC-235 BOARD (6/16)
VC-235 BOARD (13/16)
90
VC-235 BOARD (10/16)
69
VC-235 BOARD (13/16)
89
23
VC-235 BOARD (3/16)
VC-235 BOARD (15/16)
93
74
VC-235 BOARD (10/16)
89
VC-235 BOARD (13/16)
PD-117 BOARD (1/2)
CN5701
(THROUGH THE DP-77 HARNESS)
(SEE PAGE 4-103)
Q1310-1313
MT5V REG
Q1317,1319
SWITCH
PD-118 BOARD (2/2)
CN5701
(THROUGH THE DP-77 HARNESS)
(SEE PAGE 4-113)
FU-138 BOARD
FU-142 BOARD
FU-144 BOARD
94
VC-235 BOARD (6/16)
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