Akai GX-77 Service Manual page 14
Stereo tape deck
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Also See for GX-77:
- Operator's manual (116 pages) ,
- Service manual (71 pages) ,
- Manual (66 pages)
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FWD
KEY ,ON"
STOP (LOADED)
SW-904
ON
(TENSION )
Sw-905
ON
(LOADER )
PAUSE
STOP
(FWD
LED FLASH)
+10V
ic1@®
(REEL MOTOR R)
i
I
+i0V
Ic I G9)
0.4 sec
|
59
foe
+5V
REEL MOTOR R {St
!
|
I
+10V
1c 1 38)
(FWD)
+tOvi
|
Ic 1 G4)
MUTE ON
(P.B MUTE)
L
1c 1 (3)
(REEL MOTOR
L)
4) FWD Mode After Loading (Tape Loaded)
(Refer to Fig. 10)
If FWD key is turned ON after loading, @ will
be "H", @
"H" (for 0.4 sec.), and +36V is
applied to FWD PLG, and TR31, TR32 "ON", and
after 0.4 sec., the voltage will be changed to +14V
(because of TR38 OFF).
Beause of TR22, 23 "ON", the original +5V on
the right reel motor will be changed to +2.7V
(due to power regulation).
i
I
1
I
|
T
I
|
Fig. 10
5) STOP + FWD > REV > PAUSE Mode
(Refer to Fig. 11)
For FWD to REV, @ (QT relay) becomes '"H"
for 0.4 sec., TR37 "OFF" and TR38 "ON", and
+36V is applied to each plunger.
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