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AN
YO
noon MR-909
SERVICE MANUAL
SPECIRCATIONS
Recording system
-**
¢7"*
AC magnetic
biasing 4-track stereo
Frequency
response
corrttssteste
30-13000
cps
(at 7-4 ips)
rasing system
<cctrcttttt
AC magnetic erasing
70-7000
cps
(at 3-% ips)
Transistors
occececcectttemeen
25B303 x2 Ist amplifier
Power output <t+crsr19+*++s
Maximum
3
watts
(each channel)
9SB186x2
2nd amplifier
Undistorted 2.5 watts
Ceach channel)
'
tet
a
BEA
AIP
se vlebeeis
eR eewe ese sae
t
rot
Qa
|
;
n
2581862
3rd amplifier
nout and
output
Microphone
jacks
25K
onms
2581862
4th amplitier
25B373 x4
Power
amplifier
2$B272 2 AC biasing oscillator
3-34 ips 240 minutes (double tracks)
Fast forward and rewind time
Less than 3 minutes (at 7" tape)
amplifier from
the cabinet.
100K
ohms
Head
phone
jack
10K ohms
Auxiliary
jacks
Line
output
jacks
IK ohms
Speaker
s-teets
4" free edge
permanent
dynamic,
impedance
8 onms
Power source «**:-+::: ++ 90/100/117/220/240V
AC, 50/60 cps.
2) Brake Mechanism.
3) Fast Wind Mechanism.
Feed Reel Bose
Tokeup Ree! Base
/
Adjusting Screw
Brake Bound
Brake Shoe
Fig. 3
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