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Note:
The components identified by shading are critical for
safety.
Replace
only with
part number
specified.
BOARD }
S603
OFF
ON
@)
9
;
ae
eS
ell
Replacement Semiconductor
a
OFF = ON
(4
souare | |sawroon
=
[RIPPLE]
5
For replacement,
use semiconductors
except in
5
:
CHO8S
te |p
sie
Note:
.
$
CNy6OI-2
L
e
All capacitors are in uF unless otherwise noted. pF = uF
Q701, 703, 704
D601, 708—713
®
©
5OWV or less are not indicated except for electrolytics.
Q706, 707, 709
D715, 718-720
-
_
-—
+
©
All resistors are in ohms, %W unless otherwise noted.
Q716—720, 722—735
}: 2SC634A
(28C1364)
0723-743
: 181555 (1T40)
|
ack
k2 = 10002, M2 = 1000k2
ee
a a
oats
fo02-IL b [brooe2-2
_
af
~
a902
D759—767, 769
.
726 2SCI364
Q725,724 2SC1364
DSOL
a7
9"
Ic901 CX065
Q902 2SC1364
903 2SC867A
e fw} : fusible resistor.
Q710, 712, 714:
2SC634 (BLUE) (28C1364)
D714:
1T22A (1722)
TRIGGER CIRCUIT
1 SIBOI-02
SERVO AMP
19y
'MOTOR DRIVER
MOTOR DRIVER
.
;
:
:
,
Pnnalaree
af
Se
ae
1
e
(N):
low-noise capacitor and resistor.
cathode
ara
aire
pee
7 0 .
=
c907
Si
e@
20%
indicates component
tolerance.
i
c
wer 18Gh O726
:
i.
'
iin
:
P9062 909. SIBOI 02
eo Mumem - B+ bus.
KC)
zoe
-
Wr
¢
:
E
One CH
i984
e
(__]:
panel designation.
é
fay
e [-_] : adjustment for repair.
ees,
kN,
anode
v
e
+:
direct connection
to points marked
=
on
the
/
chassis.
=i
aeereara
1 | /
© 77: chassis ground.
Q702, 705, 708: 2SC1061
D602, 603
ea
|
S00
1
e@
Voltages are dc with respect to ground unless otherwise
i
é
Baie, 717
TAPE
SPEED
T A P E .
.
D
,
,
.
.
Toe
er
[a| [ee]
Lee
a
etn
catia
HK),
Oraa7ag
f e MOE.
CSIBOI C2)
it
e@
Readings are taken in stop mode
with
a
:
D755—758
EiBoy
"ie 0744 Tar sipoI-02
(( )) : record mode.
D901, 906-909
(_
): forward mode.
cathode
cathode
4
{
): S607 is ON.
gk
e
Voltage variations may
be noted due to normal produc-
(Dag
tion tolerances.
Q711, 713,715:
28C1475-13
(2SC1475)
We
e
Switch
anode
anode
ago
[Ret no | Swi
'|e
wGuesTaN °
REEL SIZE
;
'
1
: E
-
.
fos aR ge
oe
A
prog: eager 142 ienapt 148
¥
ae
atisov FA' D755~758 SIBOI-02
POWER
After replacing Q711, 713 or 715,
cathode
se
bee) ool
change the resistor as follows.
~ ayrsbe [ie Pa
Se OER surreY
0711: R722 10k2 >8.2k2
22k
)
SHUT-OFF
(TAKE-UP)
Q713:
R725 10k2
> 8.2k2
gout \ SelM] 3%
REC MONITOR MUTE
0715: R728 10k2 >8.2k2
's
is
anode
[is ro
y
Q736, 739:
2SC867A
(2SC867)
as03:
2SC867A
1C701:_CX738
IC 701 CX738
BN
Or
@ :0ut,
ul
1C901:
CX065A
(CX065)
Q701,703 2SC1364
iz
STABILIZING POWER SUPPLY
Q702 2SCI06I
STABILIZING POWER SUPPLY
.
\
12345678
($345678
(Marking side view)
5
4, C720
60/Iev
0705 SIBOI-02
D701~704 SIBO!-02
D706 EQAOI-IIR
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