Sanyo MR-1020 - Troubleshooting Chart: Mechanical Issues; Troubleshooting: Capstan Not Turning; Troubleshooting: Slow Rotation and Wow;Flutter; Troubleshooting: Fast Forward and Rewind Issues

TROUBLE
SHOOTING
CHART
(Mechanisn)—2J2#£—#/———WH——————————
Symptoms
i
Causes
Corrections
. Disconnected motor coil. |
. Faulty starting capacitor C 110.
. Burned metals.
1
1.
Replace.
|
2
2
i
3
3
'
4.
Motor
pulley
slipping.
|
4.
Tighten.
5
15
6
6
7
7
. Replace.
. Oil or replace.
Capstan does not turn.
.
Faulty
idler
pressure.
.
Adjust
or
replace
pressure
spring.
.
Clean
with
carbon
tetrachloridg
or
alcohol.
. Oil
axles.
. Oil on idler, motor pulley or flywheel.
. Insufficient oil for idler of flywheel. |
. Oil or replace, for easier turning.
Slow rotation. 1. Heavy ‘motor revolution. ae
2. Starting capacitor leak. : 2. Confirm and replace.
:
3.
Oil
on
idler,
motor
pulley
or
flywheel.
'
3.
Clean
with
carbon
tetrachloride
or
alcohol.
’ 4. Insufficient oil for idler of flywheel. ' 4. Oil.
Wow,
flutter.
ie
Insufficient
motor
torque.
|
1.
Replace.
starting
‘capacitor.
2.
Slipping
motor
pulley.
'
2.
Tighten
fising
nuts.
:
3.
Faulty
idler
pressure.
3.
Adjust
and
replace
pressure
spring.
4.
Oil
on
idler,
motor
pulley
or
flywheel.
|
4.
Clean
with
carbon
tetrachloride
or
alcohol.
' 5. Insufficient oil for idler or flywheel. : 5. Oil
|
6.
Insufficient
oil
for
both
spindles
or
faulty
felt.
|
6.
Oil,
replace
felt.
7.
Insufficient
pressure
of
pinch
roller.
7.
Check
and
adjust.
_
8.
Irregular
pinch
roller
rubber.
|
8.
Replace.
|
9.
Dust
on
head
surface.
9.
Clean
with
carbon
tetrachloride
or
alcohol.
'
10.
Dust
on
head
pad
or
faulty
pressure.
10.
Same
as
above,
or
adjust
pressure.
there
Dust
on
tape
guide.
11.
Same
as
9.
Faulty
‘fast
forward
(hp.
44).
.
Insufficient
:
oil
for
both
reel
axles,
1.
Oil.
. Faulty fast forward roller (left and right) pressure or poor _ 2. Check and adjust.
N
matching with reel base height.
3.
Oil
on
spindle,
roller
and
idler.
'
3.
Clean
with
carbon
tetrashloride
or
alcohol.
|
4.
Insufficient
oil
for
fast
forward
roller.
4,
Oil.
Loud
noise.
1.
Excessive
starting
capacitor.
1.
Replace
capacitor.
2.
Loose
motor
pulley
fixing
nut.
:
2.
Tighten.
|
3.
Faulty
motor
pulley
top
and
bottom
position.
3.
Adjust.
14.
Noise
in
the
motor
itself.
4.
Replace.
5.
Insufficient
oil
for
roller
or
idler
5.
Oil.
6.
Insufficient
¢
oil
for
spindle
pulley.
6.
Oil.
Impossible
to
rewind
tape.
'
1,
Reel
axle
not
perpendicular
to
‘chassis
surface.
1.
Adjust.
2.
Variation
in
top
and
bottom
pressure
of
pinch
roller
on
|
2.
Replace
pinch
roller.
i
capstan,
or
distorted
pinch
roller
rubber.
’
3.
Oil
spindle,
replace
spindle
felt
and
back
:
3.
Improper
feed
reel
back
tension.
i
tension
lever
shoe.
MAIN
PARTS
LOCATION
C7
aN
GAIN
BALANCE
ADJUSTMENT
25
os Z
SYR
-1
30
m
os
¢
a
SK
¢
rer
R47
aA
SYR
-2
METER
ADJUSTMENT
R107
ss
)
c28
2
™~
y
4
«C78
<
R37
og
\
¢77
ghee.)
a
a) SVR-3 METER ADJUSTMENT
C82 nen ae
7s
=N.
awe
75
Ve
Amplifier Board (Foil Side)
eee