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Trouble
Cause
Repair
Unable
to erasing
31, Weak
pressure of Head
Pad.
31, Adjust
*Loosen
the
Pad
fastening
screw,
and
bring the pad forward or move the head
front, or replace felt
with
thicker
one.
Uneven winding of tape.
*During Recording or Playback
32, Reel shaft is not perpendicular
to ope-
32, Replace.
rating panel.
*Replacement
is extremely
difficult
as
Reel shaft is fastened tight onto chassis.
33, Weak
Takeup
Reel Base Pulley Spring.
. Adjust spring.
34,
Pressure difference at top & bottom
of
. Replace Pinch
Pinch Roller & Capstan.
Lever, or adjust.
SUGGESTIONS
FOR
ELECTRICAL
TROUBLE
Trouble
|
*Even when
the button is pressed...---
|
1. In case of AC:
*Motor
fails to rotate
and
indicator
|
*Blown or loose fuse.
|
*Bad or inadequate
connection
of power
cord, plug.
needle does not move.
Replace
or Repair.
|
*Broken line in transformer, primary and secondary.
| Check,.
|
*Short circuit in C27, bad silicon rectifier.
*TR-8 bad.
*Inadequate contact of S21
, 2
In case of DC:
| Check
voltage,
*Batteries drained, and inadequate contacts or connections.
replace.
Check, adjust
|
3.
Both AC
and DC:
*Inadequate connection
of S.17, $20.
; or replace
'
4,
Both AC and DC:
*Indicator malfunctioning.
|
*Malfunction
of semi-fixed
VR
50K Q in amplifier.
Replace.
(Adjust)
*Motor
rotates
but
indicator
needle
fails to rise.
| Replace.
(When needle does not rise as expected.)
| Check.
*Bad motor
or broken
line.
*Indicator needle
rises but motor fails
5.
to
rotate
*Bad remote control jack or foot control switch jack,
Check.
Adjust.
*Bad S18, bad motor wiring.
*518 does not turn on.
*Motor fails to pick up speed in rew-
inding and rapid winding.
*Specified voltage does not reach the motor.
Check voltage &
ampere
of power
AC-DC
source.
*Low voltage of power source on am-
6.
Short circuit in negative side.
plfier side.
Check each part of
AC
amplifier and motor.
7.
Bad of power transformer, levelling condenser (C27).
| Check voltage &
induction.
Bad of diode rectifier.
*High Voltage
of power
source
on
|
*Short circuit of primary side LP of PT
| Check, replace.
|
amplifier side. AC
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