Sony DSR-250 Service Manual page 129

For Schematic Diagram
• Refer to page 4-79 for KY-049, EJ-034 printed wiring boards.
• Refer to page 4-81 for FC-074, LL-010 printed wiring boards.
2 3
1
LL-010 BOARD
A
USER FUNCTION
-REF.NO.:1000 SERIES-
XX MARK:NO MOUNT
S473 S474
LIGHT LOW CUT
S471
AUTO MANU ON OFF EDIT-/REC REV
B
C
LND474
SEIDEN GND
LND475
SEIDEN GND
D
LND471
SEIDEN GND
LND472
SEIDEN GND
LND473
SEIDEN GND
E
FS-082 BOARD
USER FUNCTION
-REF.NO.:2000 SERIES-
XX MARK:NO MOUNT
S404
S401
F
SHUTTER WHITE BAL
S403 S402
OFF/ON INDEX MARK START/STOP OFF/ON
R408
R407
0
XX
R401 R402 R403 R404
G
22k 6800 3300 1500
H
LND401
SEIDEN GND
LND402
SEIDEN GND
I
16
4 5 6
S472
EDIT+
R471
CN471 4P
22k
1 KEY_AD0-5
TO
2 LIGHT VI-156 BOARD(23/25)
CN021
3 LOW_CUT
(SEE PAGE 4-57)
4 GND
R473
XX
D471
XX
RV401
(5k/5k)
S405
FADER AUDIO LEVEL
CN401 6P
1 CH1_LEVEL
2 F_CH1_LEVEL
TO
3 GND VI-156 BOARD(23/25)
CN004
4 KEY_AD7
(SEE PAGE 4-57)
5 XS/S_SW
6 GND
R405
1200
R406
XX
4-85
7 8 9 10
KY-049 BOARD
VCR FUNCTION
-REF.NO.:1000 SERIES-
XX MARK:NO MOUNT
R266 R264 R262
R268
6800 3300 1500 1200
S269 S267 S265 S263 S261
REC REC PLAY REW STOP
R270 R267
R269 R265 R263
3300
22k 6800 1500 1200
S271 S270 S266
S268 S264 S262
FRAME- FRAME+ AUDIO_DUB SLOW FF PAUSE
D261
01ZA8.2(TPL3)
LND261
SEIDEN GND
FC-074 BOARD
USER FUNCTION
-REF.NO.:1000 SERIES-
XX MARK:NO MOUNT
LND221
CH.GND
S222
1
INFINITY
R221 2
XX
4
MANU
5
6
AUTO
D222
R223
01ZA8.2(TPL3)
22k
S221
PUSH AUTO
LND222
CH.GND
R222
XX
11 12 13
EJ-034 BOARD
EJECT
-REF.NO.:1000 SERIES-
XX MARK:NO MOUNT
CN262 6P CN291 6P
1 NC NC 1
2 XEJECT_SW XEJECT 2
3 NC NC 3
4 GND GND 4
5 GND GND 5
6 GND GND 6
CN261 8P
8 GND
KEY_AD0
7
6 TO
KEY_AD0-5
VI-156 BOARD(23/25)
KEY_AD1
5 CN013
GND (SEE PAGE 4-57)
4
3 GND
2 XEJECT_SW
1 GND
R261
XX
CN221 3P
1 KEY_AD2-5 TO
VI-156 BOARD(23/25)
2 NC CN019
3 GND (SEE PAGE 4-58)
VCR FUNCTION
/
4-86
KY-049
DSR-250/250P
14 15
S291
EJECT
EJECT USER FUNCTION
/
EJ-034 FC-074, LL-010, FS-082