Sony DSR-250 Service Manual page 86

3-9. POWER BLOCK DIAGRAM (4/4)
PD-126 BOARD
PANEL 4.6V
7
PANEL 2.8V
5
PANEL 13.5V
6
L2103
CN2100
L2101 L2102
IC2101 IC2103
TO
POWER BLOCK
(3/4)
(SW-343)
RGB DRIVE
TIMING
(SEE PAGE
GENERATOR
3-16)
(4-97) (4-97)
BL ON
L2182
L2181
P UNREG
7
EVER 3.0V
6
CN2101
VI-156 BOARD(3/3)
IC1601-1604
IC1607,1608
IC1611,1612
AUDIO ATT.
(4-47,48)
AU VCC
TO 8.4V
POWER BLOCK
UNREG 12V
(2/4)
(SEE PAGE
3-13)
CHIME VDD
TO
VCC
POWER BLOCK
(4/4)
D3.1V
(SEE PAGE
3-16)
D2.8V
A4.6V R178
(4-39)
MT5.2V
IC143
FOCUS RING
PHASE
DETECTOR
D003
CN001
D2.8V
ACCESS
4 2
LED Q2773,2774
Q2776,2778
FB140 L140
IC140 IC2770-2772
3 VCC 5 5
9 6 6
CN012 CN011 CN006 ZOOM MOTOR ACTIVE PRISM
FOCUS MOTOR ACTUATOR DRIVE
DRIVE VAP LOCK DRIVE
MEMORY
MS-058
STICK
SLOT
(4-39) (4-41)
BOARD
(4-58)
16
( ) : Page No. shown in ( ) indicates the page to refer on the schematic diagram.
LCD901
Q2102,2104 ME-019 BOARD
VDD
18
COLOR CN702 (4-109)
CN2104 LCD
UNIT VIEWFINDER
P OFF
IC701
14
2,7
4
IC702
ND901
IC703
Q2181,2182
INVERTER
BLOCK
CN703 IC705-707
EVF 12V
BACK 1
LIGHT
DRIVE
(4-109,110)
MIC +48V
TO 3
POWER BLOCK(1/4)
(DD-146)
(SEE PAGE 3-12)
XL-003 BOARD
CN803
CH1 +48V
1
CH2 +48V
(4-113,114)
2
IC051-054 IC801-804
PARALLEL IN
AERIAL OUT
(4-43,44)
Q2200
L2200,2201
L142
R186
(4-39) (4-40)
(4-37)
IC144 IC141
IC2200
IC142
ZOOM RING
PHASE
PITCH/YAW
DETECTOR
IRIS DRIVE, SENSOR AMP
V REF
L143
L141 R187
Q2772,2775
L2770 L2771
L2774
IC2775
IC27773,2774
IC2776
ACTIVE PRISM
ACTUATOR
PRE DRIVE
(4-41)
P PWM
Y PWM
AMP L2773
(4-42)
3-17
(4-58)
IC2501
IC2502
FRONT/REAR
SELECT
CN705
BUFFER MT5.2V
7 7
L4200
AU VCC
4 4
MIC AMP
CN017
4 4 AU VCC
AUDIO
5 5
MIC/LINE
AMP
CN804 CN011
SE-116 BOARD
CN422 CN422
SE VCC
PITCH/YAW
11 29 11 4
SENSOR
CN600
(SEE PAGE 4-102)
NO-001
BOARD
LENS BLOCK
(SEE PAGE
4-101)
Q140,141
ZMFC SENS VCC
ZOOM RESET SENSOR
26 14 26
FOCUS RESET SENSOR
ND SENS VCC
32 8 32 ND FILTER SW
DRIVE +
21 19 21 IRIS METER
CN001
MZ VCC
2 26 2 ZOOM RING
Q2777
MF VCC
10 18 10 FOCUS RING
ON-001
BOARD
VAP VCC
ACTIVE PRISM
11 17 11
ACTUATOR
CN002 CN2002 CN2002
(SEE PAGE 4-101)
CN200
(4-31)
IC4200
(4-33)
REEL
IC4400
MOTOR
DRIVE
6.25V
(4-31) CAPSTAN
MOTOR
L4400
DRIVE
IC4202
CN201
(4-32)
REEL
MOTOR
FG AMP
IC4300
(4-33)
IC4500 • CAP LPF
• REEL LPF
• LODING
DRUM/ L4500
MOTOR
CAPSTAN DRIVE
• REEL FG AMP
MOTOR
• TAPE TOP/END
PRE DRIVE
(4-32)
IC4501 (4-31)
DRUM/
IC4100
CAPSTAN
MOTOR
DRIVE
DRUM/
CAPSTAN/
REEL
PWM DRIVE
Q4104
DC/DC CONV. DC/DC CONV.
44
(12V→6.25V) CONTROL
UNREG 12V
D2.8V
8.4V
CHIME VDD
MT5.2V
D3.1V
A4.6V
CN008
3
Q2501
3
CN202
VIDEO D3.1V
OUT
AMP
VO-012
BOARD
(SEE PAGE 4-77)
MT5.2V
CN012
MT5.2V
CONTROL
SWITCH
BLOCK
(EG-1044)
1 D2.8V
IRIS
RING
2
CN018
CN020
(SEE PAGE
4-106)
3-18E
DSR-250/250P
MD-76
BOARD
(SEE PAGE 4-71)
IC1
ELETEN
10 10
SENSOR
AMP
11 11
CN2
CN3
10 10 REEL
9
MOTOR
11 11
FG
T REEL FG
S REEL FG
4 PIN
6 6
CONNECTOR
CN1
R MECHA DECK
TH-010 BOARD
CN451 D451,452
7 1 TALLY LED
(4-105)
IC451
REMOTE
8 2
COMANDER
RECEIVER
(REAR)
IC431
REMOTE
9
COMANDER
RECEIVER
(FRONT)
RV431
7 ZOOM VR
CONTROL SWITCH
BLOCK
(CF-1044)
(SEE PAGE 4-106)