Sony DSR-250 Service Manual page 85

DSR-250/250P
3-8. POWER BLOCK DIAGRAM (3/4)
VI-156 BOARD(2/3)
SHOE ON
VTR DD ON
CAM DD ON
HI UNREG
MT 5.2V
VTR UNREG
PANEL 2.8V
PANEL 13.5V
PANEL 4.6V
AU VCC
AU 4.6V
L1073
TO
D 1.9V
POWER
BLOCK
(2/4)
A 2.8V
(VI-156)
(SEE
PAGE
AU 2.8V
3-14)
D 2.8V
D 1.5V
AU 8.0V
D 3.1V
A 4.6V
RP 4.6V
TRF 2.8V
CAM 12V
CAM -7V
MS 3.1V
L102
D 2.8V
MS 3.1V
16
( ) : Page No. shown in ( ) indicates the page to refer on the schematic diagram.
UNREG 12V
(4-45)
IC1101
D1112-1117
2 REG 3 3
D1104
7
REG
(4-53)
IC1085
AUDIO OUTPUT
SELECT
(4-45)
IC1105
IC1103
EEP ROM
(4-53) LANC I/O
IC1086 1 UNREG POWER 4
AUDIO
14 LANC DC VCC 8
OUTPUT
VTR UNREG
Q1011
REG LANC DC
SP VCC
AU 4.6V
AU VCC
(4-51) (4-53) (4-49) (4-49)
IC1001 IC1002 IC1005
IC1006
(XYZ) AUDIO -1008 EVR
AUDIO I/O ADC&DAC
L1002
FB1002
VCA,AMP
L1001
A 2.8V
AU 2.8V
D 2.8V
FB901 L902 FB1301
IC903 IC1301 IC301 IC361
(ALIGN) (TAKO) (CAIN) (LIP)
A/D CONV. VIDEO DV DV
LINE IN/OUT SIGNAL INTERFACE
AMP PROCESS
(4-27) (4-26) (4-21)
A 4.6V L1301,1304
D 3.1V
RP 4.6V
MT 5.2V
D 1.9V
D 2.8V
L802
FB771 FB772
L801
(4-38) (4-37) (4-37)
IC803 IC802 IC801 IC771
(U-CORE)
CAMERA
EVR CAMERA EEPROM SIGNAL
CONTROL PROCESS
(4-16)
(4-20) (4-17)
L101
L103
IC1405 IC1407
IC102 IC101
(HONEY)
BUFFER
DIGITAL
STILL
(TRW) (TRF)
PROCESS
REC/PB EQ,
AMP A/D CONV.
PLL
FB1404 (4-36) (4-35)
IC1404 IC1403 IC1409 IC1413
(4-17) (4-17) (4-18) (4-20)
RS232C 16M JPEG 16M DRAM
I/F DRAM
FB1401 FB1402 FB1406
3-15
91 ACV SENS
(4-46)
IC1102
IC1104
(4-45)
HI CONTROL
RESET 5 38 XRESET 81
SHOE ON
42 51
6 VDD VTR DD ON 29
86 87
CAM DD ON
28
BATT/XEXT
66
BATTER IN 4 61
BATT IN
DETECT
8 14
XVTR MODE SW
XCAM+STBY SW 15
XPHOTO STBY SW 20
(4-46)
12 XLANC ON CHIME PWR CONT 7
Q1106
BTT LI 3V
L1003
IC1004
(4-30) (4-29)
(XYZ)
CH2
AUDIO
IC502 IC501
INPUT
(4-50)
EEPROM MECHA
CONTROL
L1004
FB501
EVER 3.0V
IC302 IC1003 IC503
AUDIO
AMP
LINE OUT
CHARACTER
AMP
GENERATER
(4-51) (4-29)
(4-23) (4-24)
FB705
FB706 L703
L702
IC704 IC706
A/D
S/H
CONV.
AGC
(4-13) (4-14)
RP 4.6V
D 1.9V
FB101
(4-19)
IC1402
MS VCC ON
BUFFER
(4-18)
IC1406 IC1401 IC1412
(4-20) (4-19)
EEPROM DIGITAL SHUTTER
118
STILL SOUND
CONTROL
FB1403 R1455
FB1405
FB1407
RL-157 BOARD
(SEE PAGE 4-78)
LANC DC LANC DC
2 2
CN009
CN141
SW-343 BOARD
AU4.6V A4.75V
2 2
D2.8V D2.8V
3 3
CN015 CN502
(4-93)
IC501
CN014 CN506 LOGIC
6 3
28 28 3
29 29 7 2 2
30 30 5 1 1
CN511
Q1109
CN014 CN506 S511
20 20 RESET
BTT LI 3V
27 27
BT501
LITHIUM BATTERY
CN507
PANEL 4.6V
11 11 7
PANEL 2.8V
9 9 5
PANEL 13.5V
10 10 6
VTR UNREG 2 2 P UNREG
7
1 1
EVER 3.0V EVER 3.0V
28 28 6
CN015 CN502 CN505
IC504
AMP
(4-30)
CHIME VDD
D 2.8V
TO
POWER BLOCK(4/4)
(LA-026)
(SEE PAGE 3-17)
A 4.6V
D 3.1V
MT 5.2V
VCC
IC707
BUFFER
CN025
FB707
A 4.6V
38 38
CAM DD ON Q701,702
FB701
CAM 12V
43 43
CAM -7V
39 39
FB702
Q1404,1405
L701
(4-20)
(4-13)
22 22
(4-14)
IC1410
IC701
29 29
IC1411 IC705
IC702
23 23
MEMORY TIMING
CCD
STICK I/F GENERATOR
17 17
V DRIVE
D 3.1V 3 3
FB703 11 11
CN100
3-16
J141
LANC
S082
ON → OFF
POWER
POWER ON
3 S082
MEMORY MODE
2
MODE
VTR MODE
SW
1
CN081
PM-040 BOARD
(SEE PAGE 4-94)
TO
POWER BLOCK(4/4)
(PD-126)
(SEE PAGE 3-17)
CD-274 BOARD
(4-9)
L106
IC103
(4-9)
IC101
AMP(G-CH)
L100
CCD IMAGER
(G-CH)
(4-9)
IC104
L104
(4-9)
IC102
AMP(R-CH)
L101
CCD IMAGER
(R-CH)
(4-9)
IC105
L105
(4-9)
IC100
AMP(B-CH)
L107
CCD IMAGER
(B-CH)