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SLV-ED15/ED25/ED33/ED39/ED55/ED66/ED85/ED88/ED89/ED95/EZ11/EZ22/EZ44/EZ66/EZ77
4-39
4-40 E
PSM17-501 (POWER SUPPLY) SCHEMATIC DIAGRAM
– Ref. No.: PSM17-501 board; 4,000 series –
POWER SUPPLY
PSM17-501
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
IC1
TOP225Y
317
D1
BYV26E
C7
0.1
µ
F
50V
R3
10
1/4W
D2
1N4935
T1
0
D6
1N4935
D
S
C
+
IC1
SWITCH
R2
47
1/4W
C8
47
µ
F
50V
+
C5
100
µ
F
450V
C9
0.1
µ
F
50V
BD1
BF06M
AC IN
CN101
2P
F1
250V
2A
C1
0.1
µ
F
250V
R1
680k
1/2W
Z1
C2
0.1
µ
F
250V
C3
330pF
275V
C4
330pF
275V
NF1
11.7
µ
H
NF2
11.7
µ
H
1
2
05
PC1
PC123
R8
560
1/4W
R7
470 1/4W
+
C27
1
µ
F
50V
SHR1
A431LP
SHR1
SHUNT REG
+
+
+
+
+
+
R9
1k
1/8W
R10
2.49k
1/8W
1/8W
C20
120
µ
F
25V
C21
47
µ
F
25V
C18
330
µ
F
10V
C19
0.01
µ
F
50V
C16
0.01
µ
F
50V
R12
100k
1/4W
C17
470
µ
F
16V
D5
SB360
D4
S3L20UF34
C12
330
µ
F
25V
C11
100
µ
F
50V
C13
220
µ
F
25V
ZD3
1N4744A
D3
1N4936
L2
10.8
µ
H
L3
10.8
µ
H
1
38V
2
38V
3
6V
4
6V
5
13V
6
13V
7
GND
8
GND
9
GND
10
GND
11
GND
12
GND
13
A/D1 IN
14
+F
19
A/D2 IN
5
GND
15
A/D1 OUT
16
–F
17
A/D2 OUT
18
–13V
4
A/D2 OUT
3
A/D2 IN
2
A/D1 OUT
1
A/D1 IN
CN102 19P
MA-377 BOARD (3/7)
CN600
(SEE PAGE 4-18)
PSM17-501 BOARD
NO MARK : E-E MODE
B+
B+
B+
B+
B+
B+
B+
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
B–
0
C6
330p
275V
275V
ZD1
P6KE200A
R11
2.49k
1/8W
1/8W
L1
47
µ
H
PS1
315mA
L4
10
µ
H
L5
1
µ
H
C22
0.01
µ
F
50V
D7
UF4002
+
+
C25
100
µ
F
25V
ZD4
RD5.6EB2
PS3
1A
L6
1
µ
H
R6
1.5k
1/4W
PS2
2A
R5
JW
CN103 5P
C23
220
µ
F
10V
C15
0.01
µ
F
50V
DS-92 BOARD
CN502
(SEE PAGE 4-36)
5.7
0
0
0
0
2.7
2.5
5-1
SECTION 5
INTERF
A
CE,
IC PIN FUNCTION DESCRIPTION
SL
V
V
-ED15/ED25/ED33/ED39/ED55/ED66/ED85/ED88/ED89/ED95/EZ11/EZ22/EZ44/
EZ66/EZ77
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
STOP
FF
REW
THREAD-
UNTHREAD-
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
ING
ING
CAP QR
MA-377
O
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
*
2
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
IC101
of
DRUM PG
MA-377
I
*
3
*
1
*
1
*
4
*
4
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC101
el
DRUM FG
MA-377
I
*
3
*
6
*
6
*
4
*
4
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
IC101
ek
CAP FG
MA-377
I
H/L
*
5
*
5
*
4
*
4
*
5
H/L
*
5
*
5
*
5
*
5
*
5
H/L
IC101
r;
CAP VS
MA-377
O
*
7
*
7
*
7
*
7
*
7
*
8
*
7
*
7
*
8
*
8
*
8
*
8
*
7
IC101
wg
DRUM VS
MA-377
O
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
*
9
IC101
wh
STOP/
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
FF/
THREAD-
UNTHREAD-
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
REW
ING
ING
RF SWP
MA-377
O
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC101
wf
QVD
MA-377
O
L
L
L
*
2
*
3
*
3
*
3
*
3
*
3
L
L
IC101
wj
C SYNC
MA-377
I
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC101
tf
5-1. SYSTEM CONTROL – VIDEO BLOCK INTERFACE (MA-377 BOARD IC101)
∗
1.
25 Hz pulse with 50% duty cycle. Synchronized with rotation of drum.
∗
2.
Normal PB “L”. V period “H” pulse when
×
1.
∗
3.
V period “H” pulse.
∗
4.
Composite sync signal (positive polarity).
5-2. SYSTEM CONTROL – SERVO PERIPHERAL CIRCUIT INTERFACE (MA-377 BOARD IC101)
∗
1.
25 Hz (PAL), 30 Hz (NTSC) pulse.
∗
2.
Pulse at tape running.
∗
3.
“L” when drum rotation stop.
∗
4.
Unstable period pulse.
∗
5.
Pulse of period in proportion to tape speed.
∗
6.
300 Hz (PAL), 360 Hz (NTSC) pulse.
∗
7.
Pulse at tape running.
∗
8.
Approx. 2 msec period “H” or “L” pulse.
∗
9.
Approx. 1.5 msec period “H” or “L” pulse.
5-2
CASSETTE CASSETTE
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
EJECTED
LOADING UNLOADING
THREAD- UNTHREAD-
STOP
FF
REW
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
ING
ING
CAM
MA-377
O
Hi-Z
H
L
H
L
*
7
*
7
*
7
*
7
*
7
*
7
*
7
*
7
*
7
*
7
*
7
IC101
id
MODE 1
MA-377
I
H
L
L
*
1
*
1
H
H
H
H
H
H
H
H
L
H
H
IC101
if
MODE 2
MA-377
I
H
L
L
*
1
*
1
H
H
H
L
L
L
L
L
L
L
L
IC101
ig
MODE 3
MA-377
I
L
L
L
*
1
*
1
H
L
L
L
L
L
L
L
H
L
L
IC101
ih
MODE 4
MA-377
I
L
H
H
*
1
*
1
L
H
H
L
L
L
L
L
L
L
L
IC101
ij
REC PRF
MA-377
I
H
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
*
2
IC101
tg
T REEL
MA-377
I
H/L
H/L
H/L
H/L
H/L
H/L
*
3
*
3
*
3
H/L
*
3
*
3
*
3
*
3
*
3
H/L
IC101
ik
S REEL
MA-377
I
H/L
H/L
H/L
*
3
*
3
H/L
*
3
*
3
*
3
H/L
*
3
*
3
*
3
*
3
*
3
H/L
IC101
il
END-LED
MA-377
O
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
*
4
IC101
uf
(O.D)
CAP RVS
MA-377
I
L
H
L
H/L
H
L
H
H
H
H
H
L
H
H
IC101
od
T SENS
MA-377
I
*
4
*
4
*
4
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
IC101
qs
S SENS
MA-377
I
*
4
*
4
*
4
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
*
6
IC101
qa
5-3. SYSTEM CONTROL – MECHANISM BLOCK INTERFACE (MA-377 BOARD IC101)
∗
1.
Uncertainty.
∗
2.
“L” when erasing protection tab is bent, “H” when not bent.
∗
3.
Pulse of period in proportion to reel rotating speed.
∗
4.
Approx. 2 msec period “H” pulse.
∗
5.
Pulse at tape running.
∗
6.
Normally “L”. 2 msec period “H” pulse when tape top or tape end is detected.
∗
7.
When transition to UNLOADING direction: L.
When transition to LOADING direction: H.
When CAM motor is stopped: Hi-Z.
When transition to LOADING direction: H.
When CAM motor is stopped: Hi-Z.
5-3
5-4. SYSTEM CONTROL – AUDIO BLOCK INTERFACE (MA-377 BOARD IC101)
STOP/
TAPE
TAPE
PB •
REC •
Signal
Pin No.
I/O
FF/
THREAD- UNTHREAD-
PB
PAUSE
SLOW
×
2
CUE
REVIEW
REC
PAUSE
REW
ING
ING
AU RF
MA-377
I
AF RF envelope signal input terminal for automatic tracking.
IC101
qf
A MUTE
MA-377
O
Hi-Z
Hi-Z
Hi-Z
Hi-Z
H
H
H
H
H
L
L
IC101
ul
(O.D)
AF SWP
MA-377
O
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
*
1
IC101
wd
FULL ERASE
MA-377
O
H
H
H
H
H
H
H
H
H
L
H
IC101
oa
(O.D)
REC P
MA-377
O
L
L
L
L
L
L
L
L
L
H
L
IC101
os
NAPB
MA-377
O
L
L
L
L
L
L
L
L
L
H
L
IC101
wa
∗
1.
25 Hz (PAL), 30 Hz (NTSC) 50% duty pulse approx. 5 msec delayed from RF SW P.
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