Sharp VT-3448X Service Manual page 50

I
Go to 2. REC/
NO
Is playback
PLAY FAILURE
function normal ?
routine.
Go to 2. REC/
PLAY FAILURE
I I I I
Are idler wheel
Replace idler
gear ass'y.
reel disk in mesh?
Is supply reel
Replace limiter
disk winding
torque normal ?
I
1
YES
r
Is pulse outputted No Replace reel
from reel sensor ?
YES
I
I
1
I
insertion and ejection mode
Is unusual sound heard during
cassette control runninq ?
Unusual sound heard with pinch roller
Replace loading motor block.
NO
Is reel disk height as specified ?
Thrust gap found at reel disk ?
I
YES
YES
Drive system out of contact with any
part on MAIN PWB ?
YES
Turn capstan motor by hand.
Unusual sound heard ?
.
I I
Check drive system's gears for
damage. Replace damaged gear with
new one.
Reel disk
l
Limiter pulley ass'y
l
Idler wheel ass'y
l
Replace Cassette control ass'y.
Check pinch roller drive cam, pinch
Adjust reel disk height.
Check reel disk and main chassis.
And replace defective parts.
Rearrange the parts on MAIN PWB.
Replace capstan motor.