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4-6.
SCHEMATIC
DIAGRAM
— System Control
Section
—
{SYSTEM CONTROL BOARD)
1
CNP702
43.6
SF
Fs
Fs
|
7 $60 ~ -2
$601
4
REEL SIZE
lov2——
7
38cm 1S-~19em7 1/2
TC-766-2
—
(SWITCH BOARD)
TC-766-2
Note:
OFF
ON
x
IC901
CX065
eS
Sa
The components identified by shading are critical for
safety.
Replace
only with
part number
specified.
WAVE
ray,
Q732 2SC1364
EMITTER FOLLOWER
Q731 2SCI364R743
0729728 2SCI364
Q727,726 2SC1364
SCHMIDT TRIGGER CIRCUIT
725,724 2SCI364
uals
AMP
IC901 CXO65
SERVO AMP
'9V
Q902 2SCI364
Q903 2SC8E7A
MOTOR ORIVER
—
» Q732
TR
24av CH
us
R782 Si Svipre9
\\
one
CD:
O€ (53)
pv28~733 T40
735
p
18k
220,
R776
{8k
Cal
R778 18Ok|
4M
0728
_
eer
ar73 | 8k,
'80k
T0726
Tisox'
'0.0047
STABILIZING SUPPLY
STABILIZING SUPPLY
24av
12.5¥ py
LOVE
1
cv
Tolar
1 2250)
D7I8~720
1T40
EMITTER FOLLOWER'
Q734 2SC1364
RELAY DRIVER
Q735
2s 1364
EMITTER FOL
iB 2SC867
MOTOR DRIVER
C737
4.1750)
ars
pheeie immy
TAPE SPEED
Ase
om
aay
| =
/ R801
a7o9 2sci36e4
[Q710,7I2714 2Sc1364
Q7I,713,715 2SC1475
SOLENOID _DRIVER
25
10k om
| |
PL6OS
FUNCTION
rr
te
PL6O3
PL604
>
CNP7OI
Ll
/ VOLTAGES OF \
j GE7OL TERMINAL |
No.3,4 AND 5 ARE
THE. VALUES
SWITCH (S104)
\ TURNS SOURCE
\DIRECTION
/
id
\ WHEN MONITOR |
v7
$607
REC
MONITOR | 4
MUTE
ON yo
t Koy
D769
Orr.
1S1555
15
S
D742 ,743,749~754
R793,
0750
Uh
'
amet
oral || 'T40
Q738 2SCi364
0752
Q739
2SC867
a
RELAY DRIVER
42
— MOTOR
DRIVER
—~—~——
-
4
ue
C74
eee
ech
reas
tek
Mi
0906~ 909 SIBOI-02
ae RB2 1 755~758 SIBOI-02
(TAKE
- UP)
S606
SHUT-OFF
°
area 23 2sCl seh.
[ee SS
pé6ol [FUNCTION SWITCH BOARD
1140
@
44
o
601]
i t
cal
IC701 CX738 | Soy ies
SYSTEM
CONTROL
(ESV)
Pivi pig
(2)
Psy one
Bo ee
701 (
ov
gn6v
EMITTER FOLLOWER
Q742,743|
|2SCI364
1, ING
0744, 7245 2801364
Q746,747 2SCI364
ASTABLE =MULTIVIBRATOR
0748 2SCI364
SWITCHING
0759~765 IT40
R837 Ik
{i
L, c720
100/16V
0706 EQAOI-IIR
ABlu
pISCONNE CT
FROM
{>
cHassis
BLU
ISROUND
RN
ORG
cry
TH 10
Q701,703
2SCI364
=
STABILIZING POWER SUPPLY
:
Q702 2SCI06I
STABILIZING POWER SUPPLY
US, CANADIAN
0705 SIBOI-02
D701~704 SIBOI-02
Note:
e
All capacitors are in uF unless otherwis)
50WV
or less are not indicated except
e
All resistors are in ohms, %W unless ot
kQ = 10002, MQ = 1000k2
ww} : fusible resistor.
(N):
low-noise capacitor and resistor.
20% indicates component tolerance.
mum
«B+ bus.
(-__] : panel designation.
(_]
: adjustment for repair.
—
: direct connection
to points ma
chassis.
7777: chassis ground.
Voltages are dc with respect to grounc
noted.
Readings are taken in stop mode with ¢
(( )}: record mode.
(
): forward mode.
{
): S607 is ON.
Voltage variations may
be noted due-
tion tolerances.
Switch
Switch
REEL SIZE
TAPE SPEED
TIMER
POWER
SHUT-OFF
(SUPPLY)
SHUT-OFF
(TAKE-UF
REC MONITOR
MUT
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