Sony DSR-250 Service Manual page 102

DSR-250/250P
For Schematic Diagram
• Refer to page 4-63 for printed wiring board.
• Refer to page 4-123 for waveforms.
2 3 4
1
VI-156 BOARD(10/25)
NO MARK:REC/PB MODE
R :REC MODE
SERVO(CM BLOCK)
P :PB MODE
A
-REF.NO.: 10000 SERIES-
XX MARK:NO MOUNT
89
TO(9/25) HICUE
96 TO(9/25,
XCS_MC_FLASH
22/25)
B
C4116
C 0.1u
16
TO(25/25) D_2.8V
101
TO(25/25) MT_5.2V
C4117
0.1u
102
TO(24/25) UNREG_12V
C4118
C4119
0.1u
D
6
TO(25/25) REG_GND
R4106
C4111
E
C4107
C4115
R4134
C4113
0.1u
F
LM-
UNLOAD
90
TO(9/25) LM+
LOAD
G
REEL_M_FG
68
TO(9/25) REEL_M_FG
REEL_PWM
95
TO(9/25) REEL_PWM
REEL_FWD
REEL_FWD
99
TO(9/25) REEL_ON
REEL_ON
H
CAP_PWM
87 TO(9/25) CAP_PWM
CHIME_VDD
CHIME_VDD
REEL_FWD
CHIME_SDA
104
TO(17/25) CHIME_SDA
CHIME_SCK
CHIME_SCK
I
REEL_EVR
106 TO(12/25) REEL_EVR
TREEL_FG
TREEL_FG
93
TO(9/25)
SREEL_FG
SREEL_FG
S_ELETEN
S_ELTN_ERR
T_ELETEN
79
TO(9/25) T_ENLTN_ERR
L_CASSETTE
L_CASSETTE
DEW_AD
J
85 TO(9/25)
REC_PROOF
REC_PROOF_SW
CC_DOWN
76
TO(9/25) XCC_DOWN
C_IN
82 TO(9/25,
XC_IN
17/25)
TAPE_END
TAPE_END
TAPE_TOP
92
TO(9/25) TAPE_TOP
TAPE_LED
TAPE_LED_ON
K
MODE_D
MODE_SW_D
MODE_C
MODE_SW_C
83
TO(9/25) MODE_B
MODE_SW_B
MODE_A
MODE_SW_A
L
IC4202
REEL MOTOR
FG AMP
M
REEL_M_FG
REEL_ON
N
16
SERVO
VI-156 (10/25)
5 6 7 8
R4538
XX
R4537
0 Q4105
UN9211J-(TX).SO
R4116
R4117
20k
± 0.5% R4115
12k
R4125 R4124
R4121 XX
0 0
XX
0.5
R4120
R4127 R4114
C4114
0
0.022u 56k 22k
C4109
560p B
CH
R4123 27k
C4100
C4101
0.001u
0.001u B
B
12 11 10 9 8 7 6 5 4 3 2 1
R4136
0
6.6
-IN2(C) Cb1
12.0
OSCin VE1
2ch 1ch
0.8
OSCout 6.25VDC CAP OUT1
6800 1.2 12.0
RT Vcc2
1.6 IC4100 12.0
220p CH CT OUT2
5.2 12.0
0.1u B
Vcc1 VE2
R4112
0.1u 2.5 12.0
Vref GND
IC4100
F R4101
5.2
CTL1 MB3785APFV-G-BND-ER VE3
5.2 1.6
XX CTL2 OUT3
3ch 4ch
5.2 12.0
CTL3 DRUM REEL OUT4
B
R4102
R4128 0 0 12.0
SCP VE4
5.2 0.6
-IN3(C) Cb4
12.0
R4108
0
25 26 27 28 29 30 31 32 33 34 35 36
R4103
47k
C4102
C4103
0.001u
0.001u
C4108 B
B
0.022u
Q4104
B
2SB709A-QRS-TX 0.9 R4113 R4104
62k
AMP XX
± 0.5%
R4118 R4119
R4126 0.4 R4105
33k 0 XX
10k
± 0.5%
IC4200
REEL MOTOR DRIVE
R4200 5.2
1k
R4536
0
C4208 5.2
0.01u
Q4501
28 27 26 25 24 23 22
2SB709A-QRS-TX
AMP
8 7 6 5
1 2 3 4 5 6 7
R4202
R4201
20k
10k ± 0.5%
1 2 3 4
R4203
12k
± 0.5%
0.9
0.4
R4204
1M Q4200
R4209 C4203
2SB709A-QRS-TX 47k 0.1u
B
SWITCH
R4212
1k
4-31
9 10 11 12
33k
Q4100
CPH3109-TL
CAP DRIVE
L4100 CONT. L4104
10uH 100uH
12.0 0.8
C4134
10u
C4129 12.0
20V
0p
B
TA
D4101
RB051L-40TE25
R4323
0
Q4101
CPH3109-TL
L4101
L4105
6.25V REG
10uH
100uH
12.0 6.7
C4104
R4333 R4326
3300p
10k
B 10k
C4135
12.0
C4130 10u
0p
20V
B
C4330
TA
D4102 4700p
R4100 1k 1/10W
RB051L-40TE25
B
C4112 Q4103
3300p B
CPH3109-TL R4526 R4527 R4329
180 180
DRUM DRIVE L4107 0
1W 1W
CONT. 33uH
12.0 2.3
1k
1/10W
L4103
470 1/10W
10uH
12.0
C4132 R4334
0p 10k
C4105
0.001u B
D4103
100 1/10W
C4137 R4529 R4528
RB051L-40TE25
C4331
10u 180 180
Q4102
20V 4700p
CPH3109-TL 1W 1W
B
B
L4102 REEL DRIVE
C4106 TA
10uH CONT.
3300p 12.0 2.8
B
L4106
22uH
C4136
12.0
C4131
10u
0p 20V R4301
15k
B
TA
D4104
RB051L-40TE25
C4200 0.1u B
C4201 0.1u B
C4202 0.1u B
R4211 0
C4204
R4205 1 1/10W
4.7u
25V
1
R4206 1/10W
TA
B
R4207 1 1/10W
R4208 1 1/10W
C4205
0.1u
B
21 20 19 18 17 16 15
8 9 10 11 12 13 14
L4200
10uH
C4206 C4207
0.1u 4.7u
B 16V
TA
13 14 15 16
SIGNAL PATH
Drum servo (speed and phase)
Capstan servo (speed and phase)
C4325
0.1u
F
IC4300
CAP/REEL LPF
LOADING MOTOR DRIVE
FG AMP
R4337 IC4300
1 LB8112V-TLM
R4342
C4324
1 0
0.1u
Rf NC
B
0 0
C4320 R4336
0.1u OUT1 OUT2
100k
2.9 0
F
Vcc1 RS
R4324 C4321 5.1
Vcc2 LIMIT OUT
10k 0.1u F
5.1 0 R4305
C4322 VM LIMIT EN
2.2u F
0.4 0
C4323 BIN1 54 DEC2
0.001u 0.3 0
B BOUT1 DEC1
R4315
0.3 * 47k
BIN2 RLO2
C4326
0.2 *
0.1u
BOUT2 RLP2
B
0 1.6
R4303 560
ISNF RLM2
C4329 *
RFB RLO1
0.022u
2.8 1.5
B
RSB 53 RLP1
47k
R4327 1.2 1.6 R4316
R4328 R4330
10k 10k 100k TOP IN RLM1
2.9 2.9
TOP OUT END OUT
1.2
C4327 GND END IN R4311
R4331
± 0.5%
0.001u 3300
XX
B
R4332 R4340
3300 ± 0.5%
100k
2.9 3.0
Q4301
2SD2216J-QR(K8).SO
2.8 3.0
BUFFER
Q4302
2SD2216J-QR(K8).SO
2.2 2.4
BUFFER
R4307
0 C4301
R4308
0.1u
B 0
C4303
0.1u C4300
100p R4310
B
CH 2.2k
R4309 C4302
2.2k 100p
CH
R4210
XX
REEL_EVR
SFG_IN
TFG_IN
REC_PROOF
CHIME_VDD
CHIME_SDA
CHIME_SCK
TOP_SENS
END_SENS
CC_DOWN
C_IN
MODE_A
MODE_B
MODE_C
MODE_D
S_ELETEN
T_ELETEN
L_CASSETTE
TAPE_LED
R4223
R224
4700
47k
Q4201
2SD2216J-QR(K8).SO
4-32
17 18 19 20
REC REC/PB PB
IC4400_VCC2
288
TO(11/25)
CAP_VS
CN4300 2P
1 LM+ M905
M
LOADING
2 LM- MOTOR
R4335
3300
XX
R4304
0
LM-
LM+
TREEL_FG
R4313 2700
TFG_IN
SREEL_FG
R4314 2700
SFG_IN
R4302 560 TAPE_END
R4312
4700
± 0.5%
R4339
4700
± 0.5%
R4300
15k
END_SENS
TAPE_TOP
TOP_SENS
REEL_PWM
CAP_PWM
DRUM_VS 290 TO(11/25)
IC4500_16 289
TO(11/25)
CN201 21P
21 REEL_V
20 REEL_V
19 REEL_U
18 REEL_U
17 REEL_W
16 REEL_W
15 GND
14 GND
13 FG1
TO
12 5V
MD-76 BOARD CN1
(THROUGH THE
11 5V
FRV-008 FLEXIBLE)
10 FG2 (SEE PAGE 4-71)
9 SREEL_FG
8 TREEL_FG
7 REC_PROOF
6 CHIME_4(VDD)
5 CHIME_3(SDA)
4 CHIME_2(SCK)
3 GND
2 GND
1 TAPE_TOP
CN200 21P
21 TAPE_END
20 CC_DOWN
19 C_IN
18 MODE_A
17 MODE_B
16 MODE_C
15 MODE_D
14 S_ELETEN
TO
MD-76 BOARD CN2
13 T_ELETEN
(THROUGH THE
FRV-008 FLEXIBLE)
12 5V
(SEE PAGE 4-71)
11 5V
10 TAPE_LED(K)
9 GND
8 L_CASSETE
7 DEW
4.3 WHE_-
6 W-
WHE_+
5 W+
VHE_-
4 V-
VHE_+
3 V+
UHE_-
2 U-
UHE_+
1 U+