Sony DSR-250 Service Manual page 122

DSR-250/250P
For Schematic Diagram
• Refer to page 4-69 for printed wiring board.
MD-76 BOARD
MODE SENSOR
A
-REF.NO.:3000 SERIES-
XX MARK:NO MOUNT
B
TO
VI-156 BOARD
(10/25)
CN200
(SEE PAGE
4-32)
C
D
E
F
TO
VI-156 BOARD
(10/25)
CN201
(SEE PAGE
G
4-32)
H
16
MODE SENSOR
MD-76
2 3
1
NO MARK:REC/PB MODE
R :REC MODE
P :PB MODE
CN2 21P
CL5
TAPE_END 1
CL6
CC_DOWN 2
CL7
C_IN 3
CL8 JL10 S901
MODE_A 4
MODE SW
CL9 JL9
JL11
MODE_B 5
CL10 JL8
MODE_C 6
CL11 JL7
MODE_D 7
CL12
S_ELETEN 8
CL13
T_ELETEN 9
CL14
5V 10
CL15
5V 11
CL16
TAPE_LED 12
CL17
GND 13
CL18
L_CASETTE 14
CL19
DEW 15
CL20
W- 16
CL21
W+ 17
CL22
V- 18
CL42
V+ 19
CL43
U- 20
CL44
U+ 21
JR4 (3216)
IC2 RV001
R7 R8
100 22k 1M
0.3
HALL
3
CL1
1 2
H
R5
IC2
2.5 R30 6800
THS124TE85L
4
0
2.5 R6
RV002 6800
47k
R28
100
R31
CL2
0
CN1
21P
CL24
REEL_V 1
REEL_V 2
CL25
REEL_U 3
REEL_U 4
CL26
REEL_W 5
REEL_W 6
CL27
GND 7
CL28
GND 8
CL29
FG1 9
CL30
5V 10
CL31
5V 11
CL32
FG2 12
CL33
SREEL_FG 13
CL34
TREEL_FG 14
CL35
JL2
REC_PROOF 15
CL36
JL3
CHIME_4(VDD) 16
CL37
CHIME_3(SDA) 17 JL1
JL4
CL38
CHIME_2(SCK) 18 JL5 JL6
CL39
GND 19
CL40
GND 20
CL41
TAPE_TOP 21
Q2
3.0
PT4850F
TAPE TOP
SENSOR
4-71
4 5 6
S3
(CC_DOWN)
R3
120
D1
GL453S
S2
(C_IN)
TAPE
LED
CL45 CL46
JR1
(3216)
DEW SENSOR
JR5
(3216)
IC1 BA10358F-E2
R13
IC1
22k
JR6 R12
4.9 100
OUT1
Vcc 3216
22k
R4 HALL AMP
1.3
2.2
RV003
IN1-
1M
OUT2
2.6
2.6 R9
2.5
3
22k CL3
IN1+ 2 1
IN2-
H
2.6 R10
2.5
R32
6800 2.6 4.5
GND 0 4
IN2+
R11
RV004
0.3
6800
47k R29
100
THS124TE85L
R33
R27 CL4
0
XX
R26 C1
C2
XX 0.01u
10u
B
10V
TA
3
3 4
0.9-2.9
0.9-2.9
R14 IC4
180
TLP907
MIC/REC_PROOF
3216
2.4 (LB SONY)
1 2 1
1.2 1.2
7 8 9
3.0
Q1
PT4850F
TAPE END
SENSOR
R015
JR3 CL61
390
(L/S-CAS) 18
HE Vcc
S1 R001
(3216) CL60
390
17 HE GND
CL59
16 W-
CL58
15 W+
CL57
14 V-
CL56
13
V+
CL55
12
U-
CL54
11 U+
CL53
10 MR_FG2
CL52
9 MR_Vcc
CL51
8
MR_FG1
CL50
7
MR_GND
CL49
6 W
5 W
CL48
IC3
4 U
3 U
HALL CL47
2
V
1
IC3 V
4
IC4,IC5
IC5
TLP907
(LB SONY)
T REEL/S REEL
2
FG
4-72
10 11
DV MD BLOCK
R MECHANISM
FG
M904
M
REEL
MOTOR
CN3 18P