Sy-072 (Laser/Ir Led Drive) Schematic Diagram - Sony Cyber-shot DSC-F707 Service Manual

DSC-F707
SY-072 (LASER/IR LED DRIVE) SCHEMATIC DIAGRAM • See page 4-11 for SY-072 printed wiring board.
1
SY-072 BOARD (3/7)
A
LASER/IR LED DRIVE(IR BLOCK)
-REF.NO.:1,000 SERIES-
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
B
C
SY-072 BOARD (7/7)
D
E
21
SY-072 BOARD (2/7)
F
SY-072 BOARD (7/7)
G
H
SY-072 BOARD (5/7)
05
LASER/IR LED DRIVE
SY-072 (3/7)
2 3
Q253
2SB1462J-QR(K8).SO
5.2 0
5.2
R253
47k
R254
4700
5.2
0
PRELAMP_AF_ON
UN9213J-(K8).SO
29
PD_LEV
D_3.2V
PRELAMP_AF_CONT
R260
XX
R251
33
CAM_P_5V
R252
R256
33
1500
IR_LED_ON
30 Q257
2SD2216J-QR(K8).SO
LED DRIVE
REG_GND
R258
47k
4.9
A_4.9V
R255
100k 2SB1462J-QR(K8).SO
4.9
R257
4700
4.9
31
0
STRB_PHOTO_ON
UN9213J-(K8).SO
4-19
4 5 6
IC252
COMPALATOR
Q251,253
+B SWITCH
IC252
NJM2125F(TE2)
R268 R286
10k 0
0
R263
0
0
C261
Q251
0.1u
C260 R285
R269
0.1u
820
C259
0.2mA typ.
R275
22k
IC253 TC7WH123FU(TE12R)
0
VCC
A
3.3
RX/CX
B
3.3
CX
R265
CLR
10k
Q
GND
R273 XX
R259
Q256
XX
XX
IC253
R262
MULTI VIBRATOR
XX
IR_LED_A
3.4
IR_LED_K
0
4.9
PHOTO_TR_4.9V
Q254
Q252,254
+B SWITCH
Q252
7 8
Q261
C254
0
UN9113J-(K8).SO
0.1u
R279
C265
0
10u
0
R282
0
4700
R278 R284
0
1500
470
0
+ V
0
G
0
0
- O
Q260
0
UN9213J-(K8).SO
2.3
XX
C258
XX
XX
R288
C263
0.1u 22k
Q260-262
LASER DIODE
CONTROL
3.3
3.2 R287
D251
220k
MA111-(K8).S0
0
0 2.3
C264
1u
0
Q262
UN9213J-(K8).SO
R274
XX
19
SY-072 BOARD (2/7)
4-20
9 10
Q258
2SB1462J-QR(K8).SO
LASER DIODE DRIVE
R283
6.8
20
LD_OUT
SY-072 BOARD (2/7)
PD_OUT
R281
32
XX
REG_GND SY-072 BOARD (7/7)