Sony DCR-TRV320 Service Manual page 95

DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
TRV620E/TRV720/TRV720E
PC-77 (DC/DC CONVERTER) SCHEMATIC DIAGRAM
1 2 3
PC-77 BOARD (3/3)
A
DC/DC CONVERTER (DD BLOCK)
-REF.NO.:30,000 SERIES-
XX MARK:NO MOUNT
NO MARK:MEMORY REC/PB MODE
B
C
D
E
F
G
H
I
2
J PC_D_3.1V
PC_D_3.1V
PC-77 BOARD (1/3)
D_2.8V
5 PC-77 BOARD (1/3) D_2.8V
PC_D_1.9V
IF_232C_RD
PC_D_1.9V
PC_D_3.1V
6 PC_D_3.1V
PC-77 BOARD (1/3)
REG_GND
REG_GND
D_2.8V
PC_D_1.5V
9
PC_D_1.5V
K
PC_D_3.1V
PC-77 BOARD (2/3)
PC_D_3.1V
REG_GND
REG_GND
L
05
DC/DC CONVERTER
PC-77 (3/3)
4 5 6 7
VC-235 BOARD(6/16)
CN1104
(SEE PAGE 4-26)
100P
CN802
2 REG_GND REG_GND 1
VFI_HD
4 VFI_HD VFI_Y7 3
VFO_HD
6 VFO_HD VFI_Y6 5
VFI_VD
8 VFI_VD VFI_Y5 7
VFO_VD
10 VFO_VD VFI_Y4 9
VFI_OE
12 VFI_OE VFI_Y3 11
VFO_OE
14 VFO_OE VFI_Y2 13
VFO_Y0 Hi8/Std8
16 VFO_Y0 VFI_Y1 15
/M Stick
VFO_Y1
18 VFO_Y1 VFI_Y0 17
VFO_Y2
20 VFO_Y2 IFI_Y7 19
VFO_Y3
22 VFO_Y3 IFI_Y6 21
VFO_Y4
24 VFO_Y4 IFI_Y5 23
VFO_Y5
26 VFO_Y5 IFI_Y4 25
VFO_Y6
28 VFO_Y6 IFI_Y3 27
VFO_Y7
30 VFO_Y7 IFI_Y2 29
VFI_C0 Hi8/Std8
32 VFI_C0 IFI_Y1 31
/M Stick
VFI_C1
34 VFI_C1 IFI_Y0 33
VFI_C2
36 VFI_C2 IFI_OE 35
VFI_C3
38 VFI_C3 IFI_VD 37
IFI_C0 Hi8/Std8
40 IFI_C0 IFI_HD 39
/M Stick
IFI_C1
42 IFI_C1 KASYAON 41
IFI_C2
44 IFI_C2 DS_BUSY 43
IFI_C3
46 IFI_C3 AFCK 45
IFI_C4
48 IFI_C4 SPCK0 47
IFI_C5 MS_INSERT
50 IFI_C5 MS_IN 49
IFI_C6 Hi8/Std8
52 IFI_C6 TDI 51
IFI_C7
54 IFI_C7 VSP_SO 53
VFIO_C4
56 VFIO_C4 TCK 55
VFIO_C5
58 VFIO_C5 VSP_SI 57
VFIO_C6 Hi8/Std8
60 VFIO_C6 TMS 59
/M Stick
VFIO_C7 XVSP_SCK
62 VFIO_C7 XVSP_SCK 61
XCS_HONEY
64 XCS_HONEY TD_2-3 63
XDS_WAKEUP
66 XDS_WAKE_UP XHI_SCK 65
XCS_DS
68 XCS_DS HI_SI 67
70 VTR_DD_ON HI_SO 69
XSYS_RST
72 D_1.5V XSYS_RST 71
74 REG_GND D_1.5V 73
76 REG_GND REG_GND 75
78 REG_GND REG_GND 77
80 D_2.8V D_2.8V 79
82 PC_UNREG PC_UNREG 81
84 IF_232C_RD 232C_ON 83
IF_232C_TD
86 PRINT_HEAD_DDCONT IF_232C_TD 85
88 KEY_AD5 PRINT_SLEEP 87
90 DIAL_B DIAL_A 89
XDS_FLASH_RST
92 REG_GND XDS_FLASH_RST 91
94 REG_GND P_OPEN 93
96 REG_GND REG_GND 95
98 REG_GND REG_GND 97
100 REG_GND REG_GND 99
4-51
8 9 10
1
PC-77 BOARD (1/3)
8
PC-77 BOARD (2/3)
PC_D_1.9V
PC_UNREG
R709
10k
C713
6800p
C711
470p
REG_GND
8 7 6
VFI_Y7
VFI_Y6
VFI_Y5 IC702
MB3817PFV-G-BND
VFI_Y4
IC702
VFI_Y3
VFI_Y2
DC/DC CONTROL
VFI_Y1
VFI_Y0
IFI_Y7
9 10 11 12 13 14 15 16
IFI_Y6
8.2
IFI_Y5
VTR_DD_ON
IFI_Y4
IFI_Y3
C722
0.1u
IFI_Y2
REG_GND
IFI_Y1
IFI_Y0 C712 R708
2200p 150
PC_D_3.1V
IFI_OE
IFI_VD
IFI_HD
PC_UNREG
KASYAON
DS_BUSY
AFCK
SPCK
TDI
VSP_SO
C701
TCK
470p
TMS
TDO
XHI_SCK
HI_SI
C726
XX
HI_SO
D_1.5V
PC_UNREG
232C_ON
VTR_DD_ON
C721
0.1u
REG_GND
VTR_DD_ON
PC_D_1.5V
R716
0
D_1.5V
11 12 13 14
7
PC-77 BOARD (2/3)
R713 R714
47k 33k
R711
270k
R710
XX
C716
XX
CH
5 4 3 2 1
Q702
L704
CPH6702-TL
L705 L706
4.7uH
SWITCHING
22uH 4.7uH
8.2
1 6
8 2 5 2
3 4
C717
4.7u
C720
C718
10u
4.7u
10V
R715
C715
0
0.1u
C714
0.068u
R706 R707
47k 6800
R702
R704
10k
47k
C703 R703
0.001u 15k
C706
150p
CH
8 7 6 5 4 3 2 1
IC701
MB3817PFV-G-BND
Q701
IC701 L701
CPH6702-TL
4.7uH L702
SWITCHING
8.2
1 6 22uH
DC/DC CONTROL
8.1
2 5 3
3 4
C707
4.7u
9 10 11 12 13 14 15 16
C708
4.7u
C705
0.1u
C702 R701 C704
150 0.047u
2200p
IC703
XX
NOISE_BY_PASS
VOUT C723
C725 GND XX
XX GND
CONT
VIN
C724
XX
4-52
15 16 17
LND801
SHIELD_GND
LND802
SHIELD_GND
LND805
SHIELD_GND
LND806
SHIELD_GND
LND807
SHIELD_GND
LND808
C728
4.7u
SHIELD_GND
B
LND803
R803 XX
CHASSIS_GND
D801
LND804
XX
CHASSIS_GND
L703
4.7uH
C710 C727
10u 4.7u
10V B
SIGNAL PATH
VIDEO SIGNAL
CHROMA Y
REC
PB