Akai 1700

SECTION “B” TROUBLES WITH TAPE TRANSPORT MECHANISM.
Unit does not rewind tape.
Supply (rewind) reel shaft does not rotate
_
Troubles
with
power
trans-
Oil
attached
to
rewind
idler
or
mo-
[—|Wipe off oil.
even
without
placing
recording
tape
on
unit.
mission
mechanism.
tor
bushing.
Intermediate
idler(black
bakelite
iGheck
Internal
tai
wheel)
not
working
correctly.
ae
ee
7
Supply (rewind) reel shaft does not rotate
when tape is placed on unit.
Loose motor bushing.
‘Tighten motor bushing mounting screw.
| [Check rewind idler. Clean and re-Oil,
Rewind idler does not rotate or not
in position.
Bupply
reel
shaft
assembly
does
no
rotate
smoothly.
Check supply reel shaft assembly.
Clean and re-oil-
ee
Decieaaed.
Water
tong
Check
motor
torque.
Replace
motor
if not repairable.
Defective
motor
starting
capacitor
19.
H
Replece
C19.
lexcessive slippage of clutch mate-
rial(felt) in supply reel shaft assembly.
Troubles with motor.
Trouble with power trans-
mission mechanism.
es
[Hen
supply
reel
shaft
assembly.
aah
ccna
|
[Tape
guide
roller
does
not
rotate.
|
—{check
guide
roller.
Re-oil
or
replace.
Supply (rewind) reel warped and stick-
|—{check and replace reel.
ling to deck top panel.
Defective reel.
laced in Rewind or Fastforward
Loose tape winding after being
5
mode.
assemblies.
Decreased back tension of take-up and supply reel shaft!
[Disassemble
reel
shaft
assemblies
and
strengthen
back
tension.
Tape spills when stopped from
Rewind or Fast forward mode.
rewind reel shaft assemblies.
Excessive
slippage
of
felt
clutch
material
in
take-up
and
Readjust
slippage
of
felt
clutch
material.
Replace
defective
reel
shaft
assembly
if
this
readjustment is difficult.
Reels of different size are used. For example, 5’reel on
take-up side and 7" reel on supply side.
|__faiways
use
reels
of
same
size
on
both
sides.
[Break does not function properly.
Worn-out brake shoes.
Check and replace brake shoes.
Oil attached to surface of brake shoes. [1
Wie
off
oii
with
cotton
swab
soaked
in
alcohol.
[-|Loose brake shoes.
Tighten
brake
shoes
mounting
screw.
[Loud motor vibration.
+}
Brake lever does not function properly.
inercvapee erence [Worn-out and rugged idler wheel. |
Worn-out and rugged idler wheel.
rewinding or fast forearding tape. [—{Wern-out and rugged idler wheel, }_———____—
Loose motor mounting screw. Tighten mounting screw.
Check
and
re-adjust
brake
lever.
Check idler wheel.
Defective motor starting capacitor (C30).
Replace C30.
Loose oil cover mounting screw.
Baieaking noise euch DAY, Deposit of dust on heads.
ing lape.
‘Tighten mounting screw.
Clean heads.
Ly
Recording tape is being charged with static electricity. }—[Replace recording tape.
ion.
Excessive heat on head surface after continued operat-
H Check tape head.
[Old and worn-out recording tape.
Inferior recording tape.
Inspect recording tape.
Use recording tape of good quality.
1
[automatic
stopping
device
2
|
does
not
function.
i
Cycle change switch does
not move.
Automatic stop lever moves
normally.
Automatic stop lever does not
Micro switch (87) does not work properly } {Check 87,
Check lever spring.
move or sticky.
Broken lever spring or lever spring not in position.
|| Check rear side of deck sub-plate.
Automatic stop lever sticks to rear deck panel.
‘No lubricant on cycle conversion lever.
Relubricate lever.
Eccentric or bent cycle conversion lever.
Check cycle conversion leve:
Capstan drive belt not on driving track of flywheel.
Check capstan drive belt |
Loose motor bushing.
Loose motor mount screw.
Tighten mounting screw.
‘Tighten mounting screw.
Oi on motor bushing or on flywheel.
Wipe off oil with cotton swab soaked in alchol.