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SLV-SE350/SE500/SE600/SE650/SE700/SE800/SX600/SX700/SX800
4-37
4-38
SRV938EK (POWER SUPPLY) PRINTED WIRING BOARD
– Ref. No.: SRV938EK board; 2,000 series –
POWER SUPPLY
SRV938EK
JK-180
(SE500/SE800/
SX800)
(FRONT IN)
(SE500/SE800/
SX800)
(FRONT IN)
DS-91
(MODE CONTROL)
(MODE CONTROL)
POWER BLOCK
(SRV938EK)
(POWER SUPPLY)
(SRV938EK)
(POWER SUPPLY)
KK-23
(SE800/SX800)
(DIAL TIMER)
(SE800/SX800)
(DIAL TIMER)
MA-373
VIDEO, AUDIO, I/O,
SERVO/SYSTEM CONTROL,
TUNER, MODE CONTROL
SERVO/SYSTEM CONTROL,
TUNER, MODE CONTROL
(
)
There are few cases that the part isn't mounted in this model is printed on this diagram.
D102
D101
D103
D104
C103
05
L102
L101
SRV938EK BOARD
L103
C104
C105
C102
C108
C156
R156
R157
R152
R151
R164
R160
R159
C155
D154
D152
Q151
L151
D153
IC151
PC151
IC251
D158
C151
D151
C209
D304
C203
C208
Q303
Q305
Q304
Q301
Q204
C251
C252
C253
C254
C202
C206
R312
R307
D302
C303
R311
D303
R313
R219
R218
L205
R251
R316
R252
L202
L201
Q201
R315
R314
VR251
C301
C201
R203
PS251
PS201
PS202
C213
D251
T151
D301
D252
D253
D254
R158
C109
C101
Z101
R101
R222
1-468-458-
R207
R208
R209
R217
R302
D307
Q307
D203
D204
D205
C207
Q206
Q205
Q207
C212
11
+
1
2
3
4
5
6
A
B
SRV938EK BOARD
CN101
A-1
CN201
A-5
CN202
A-6
D101
B-1
D102
B-1
D103
B-1
D104
B-1
D151
A-3
D152
A-3
D153
A-3
D154
B-3
D158
A-3
D203
B-6
D204
A-6
D205
A-6
D251
A-4
D252
A-4
D253
B-4
D254
B-4
D301
A-4
D302
A-6
D303
A-6
D304
A-4
D307
A-6
IC151
B-3
IC251
B-4
Q151
A-3
Q201
A-5
Q203
B-6
Q204
B-5
Q205
B-6
Q206
B-6
Q207
B-6
Q210
B-6
Q211
B-6
Q301
A-5
Q302
A-6
Q303
A-6
Q304
A-6
Q305
B-6
Q306
A-6
Q307
A-6
SLV-SE350/SE500/SE600/SE650/SE700/SE800/SX600/SX700/SX800
4-40 E
SRV938EK (POWER SUPPLY) SCHEMATIC DIAGRAM
– Ref. No.: SRV938EK board; 2,000 series –
POWER SUPPLY
SRV938EK
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
4-39
PS251
750mA
PS202 2A
PS201 1.6A
1
2
3
4
5
6
7
–11V CONT
38V
–11V
+F (2.9V)
D GND
–F (0V)
D GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
AN GND
OSD VCC
CAPSTAN VCC
CAPSTAN VCC
MTR 12V
MTR 12V
MTR GND
MTR GND
P CONT M24V
P CONT M18V
P CONT M12V
13V
SW 12V
D6V
SW 5V
SW 5V
AN GND
AN GND
AN GND
C151
47
400V
R151
1M
R152
1M
R156
2.2M
2.2M
R157
2.2M
2.2M
R163 3.9k
1
2
3
4
5
6
7
14
13
12
11
10
9
8
R219
4.7k
R220
4.7k
C206
47
35V
R206
1.5k
C203
220
16V
16V
D253
SB340L
D254
PR1003
C253
1200
1200
10V
R252
0.22
IC251
AN1431T
C254
470
25V
25V
VR251
5k
L202
10
µ
H
L205
1
µ
H
R263
18k
C261
0.22
C202
470
10V
10V
D204
1SS119
D203
MTZJ5.1
D205
1SS119
R207
220
R208
220
R209
220
C207
10
50V
Q206
2SC2785
Q205
2SD2394
SW5V REG
Q203
2PD601A
C208
470
10V
10V
C213
0.1
50V
C212
0.01
R213
47k
R216
4.7k
Q207
2SD1862
Q210
DTA114EKA
Q207, 210, 211
SWITCH
Q206
SWITCH
Q211
DTC114EKA
R217
10
1W
R218
33
3W
CN202 7P
MA-373 BOARD (9/9)
CN601
(SEE PAGE 4-29)
CN201 19P
T151
POWER TRANSFORMER
05
C109
1000p
250V
C108
1000p
250V
D101-104
IN4005
D104
D102
D103
IC151
TDA16846
R162
33k
C157
1000p
C158
820p
820p
C159 100p
C160
10000p
C161
1000p
R164
18k
C156
1
50v
R161
33k
D154
PR1003
R160
33
C155
22
50V
D153
1SS119
R159
22
R158
82
C153
3300p
D158
MA4270
Q151
SWITCHING
REG
R155
10k
L151
D152
UF4007
D151
P6KE300
Q151
2SK3047
D251
PR1003
R251
56
C251
47
50V
D301
UF3DL
D252
UF3DL
C301
220
50V
50V
R316
100k
Q301
2SD2394
Q301, 302 307
SWITCH
Q307
2SA1015
Q302
DTC143EKA
R301
10k
R302 1k 1W
R313
10
2W
R312
10
2W
Q305
2SB733
Q306
DTC143EKA
Q304
2SC2785
Q303 2SD2394
R306
10k
R307 1k 1W
R308
1k
D304
D2S4M
Q303-306
SWITCH
Q201, 204
SWITCH
D302
D2S4M
D303
MTZJ20
R311
10k
C303
22
50V
C209
0.01
R314
1k
2W
R315
1k
2W
D30
D2S4M
L201
10
µ
H
C252
680
25V
25V
C201
220
25V
25V
Q201
2SB733
R201
1k
R203
180
2W
Q204
2SC2785
R266
3.3k
R261
1k
R264
15k
R265
10k
R222 220
R210
1k
IC251
SHUNT
REG
IC151
POWER
CONTROL
PC151
ON3171
0
0
0
0
0
1
2
3
4
5
6
7
8
9
11
10
A
B
C
D
E
G
F
2
1
Z101
AC IN
CN101
2P
F101
T2AL
250V
250V
R101
1M
1/2W
L101
10
µ
H
L102
33mH
L103
33mH
C101
0.1
275V
C102
0.1
275V
C104
1000p
250V
C103
1000p
250V
C105
1000p
250V
0
0
0
0
0
0
0
0
0
0
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
SRV938EK BOARD
MA-373 BOARD (9/9)
CN600
(SEE PAGE 4-29)
Q203
SWITCH
0
0
0
0
0
0
0
0
0
D101
0
0
0
2.6
1.6
0.7
5.6
2.7
6.1
2.2
6.1
13.2
2.9
310
2.8
0
0
50.6
–0.2
51.8
51.7
13.4
0.5
0
0
13.5
0.7
5.2
5.2
5.9
5.9
6.5
10.2
0.5
13.6
12.8
0
50.6
50.6
51.6
–11.7
–11.7
–11.1
0
5.9
5.9
5
2.5
4.2
50.6
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B+
B–
B–
B–
+6V
5-1
SECTION 5
INTERF
A
CE,
IC PIN FUNCTION DESCRIPTION
SL
V
V
-SE350/SE500/SE600/SE650/SE700/SE800/SX600/SX700/SX800
TAPE
TAPE
Signal
Pin No.
I/O
STOP
FF
REW
LOADING
UNLOADING
PB
REC
CTL IN+
MA-373
I/O
*
7
*
7
*
7
*
7
*
7
*
7
*
1
IC162
og
DRUM PG
MA-373
I
*
3
*
3
*
3
*
3
*
3
*
3
*
3
IC162
o;
DRUM FG
MA-373
I
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC162
il
CAP FG
MA-373
I
H/L
*
2
*
2
*
5
*
5
*
2
*
2
IC162
ij
CAP RVS
MA-373
O
H/L
L
H
L
H
L
L
IC162
wf
CAP ERR
MA-373
O
L
*
6
*
6
*
6
*
6
*
6
*
6
IC162
uh
DRUM ERR
MA-373
O
*
6
*
6
*
6
*
6
*
6
*
6
*
6
IC162
uj
STOP/
TAPE
TAPE
REC •
Signal
Pin No.
I/O
FF/
LOADING
UNLOADING
PB
REC
PAUSE
REW
RF SWP
MA-373
O
*
1
*
1
*
1
*
1
*
1
*
1
IC162
qk
QVD
MA-373
O
L
L
L
*
2
L
L
IC162
qd
C V IN
MA-373
I
*
3
*
3
*
3
*
3
*
3
*
3
IC162
th
5-1. SYSTEM CONTROL – VIDEO BLOCK INTERFACE (MA-373 BOARD IC162)
∗
1.
25 Hz pulse with 50% duty cycle. Synchronized with rotation of drum.
∗
2.
Normally “L”. “H” when video signal is not generated.
∗
3.
Composite sync signal (positive polarity).
5-2. SYSTEM CONTROL – SERVO PERIPHERAL CIRCUIT INTERFACE (MA-373 BOARD IC162)
∗
1.
25 Hz pulse.
∗
2.
Pulse of period in proportion to tape speed.
∗
3.
25 Hz “H” pulse.
∗
4.
330 Hz pulse.
∗
5.
Unstable period pulse.
∗
6.
DC voltage 1 to 5V
∗
7.
Hi-Z (2.5V)
5-2
CASSETTE CASSETTE
TAPE
TAPE
Signal
Pin No.
I/O
EJECTED
LOADING UNLOADING
THREAD- UNTHREAD- STOP
FF
REW
PB
REC
ING
ING
CAM
MA-373
O
M
H/M
L/M
H/M
L/M
M
M
M
M
M
IC162
ed
MODE 1
MA-373
I
H
–
–
L
L
H
H
H
H
H
IC162
wl
MODE 2
MA-373
I
H
–
–
L
L
H
H
H
L
L
IC162
wk
MODE 3
MA-373
I
L
–
–
H
H
H
L
L
L
L
IC162
wj
MODE 4
MA-373
I
L
–
–
H
H
L
H
H
L
L
IC162
wh
REC PRF
MA-373
I
L
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC162
e;
T REEL
MA-373
I
H/L
H/L
H/L
H/L
H/L
H/L
*
2
*
2
*
2
*
2
IC162
i;
S REEL
MA-373
I
H/L
H/L
H/L
*
2
*
2
H/L
*
2
*
2
*
2
*
2
IC162
ul
END LED
MA-373
O
L
L
L
*
3
*
3
*
3
*
3
*
3
*
3
*
3
IC162
w;
T SENS
MA-373
I
*
3
*
3
*
3
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC162
7
S SENS
MA-373
I
*
3
*
3
*
3
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC162
6
5-3. SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-373 BOARD IC162)
∗
1.
“L” when erasing protection tab is bent. “H” when not bent.
∗
2.
Pulse of period in proportion to reel rotating speed.
∗
3.
Approx. 2 msec period “H” pulse.
∗
4.
Normally “L”. 2 msec period “H” pulse when tape top or tape end is detected.
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