Akai 1730-SS - Page 21

Symptom Trouble
Unit does not operate in Fast 1. Oil adhering to take-up ilder wheel or motor bushing
Forward mode 2. Loose motor bushing
(Take-up reel shaft does not rotate even 3. Take-up ilder wheel does not function properly
before placing recording tape on unit) 4. Take-up reel shaft assembly does not function properly
5. Check lever G
Take-up reel shaft does not rotate when 1. Decreased motor torque
recording tape is placed on unit 2. Defective motor starting capacitor C2
3. Excessive slippage of clutch material (felt) in take-up reel shaft assembly
4. Tape guide roller does not rotate smoothly
5. Take-up reel warped and touching deck top panel
Unit does not rewind tape 1. Oil adhering to rewind idler or motor bushing :
(Supply (rewind) reel shaft does not 2. Intermediate idler (back bakelite wheel) not working correctly
rotate even before placing recording 3. Loose motor bushing
tape on unit) 4. Rewind idler does not rotate or not in position
5. Supply reel shaft assembly does not rotate smoothly
(Supply rewind) reel shaft does not 1. Decreased motor torque
rotate when tape is placed on unit) 2. Defective motor starting capacitor (C2)
3. Excessive slippage of clutch material (felt) in supply reel shaft assembly
4. Tape guide roller does not rotate
5. Supply (rewind) reel warped and touching deck top panel
Loose tape winding after being set to 1. Decreased back tension of take-up and supply reel shaft assemblies
rewind or fast forward mode
Tape spills when stopped from rewind or 1. Excessive slippage of felt clutch material in take-up and rewind reel shaft
fast forward mode assemblies
2. Reels of different sizes are used for example “5” reel on take-up side and “7”
reel on supply side
Brake does not function properly 1. Worn-out brake shoes
2. Oil adhering to surface of brake shoes
3. Loose brake shoes
4. Brake lever does not function properly
Periodical clacking noise when 1. Worn-out and rugged idler wheel
rewinding or fast forwarding tape
Loud motor vibration 1. Loose motor mounting screw
2. Defective motor starting capacitor (C2)
3. Oil cover mounting screw loose
Squeaking noise when playing tape 1. Deposit of dust on heads
2. Recording tape is béing charged with static electricity
3. Excessive heat on head surface after continued operation
4. Oil and worn-out recording tape
5. Inferior recording tape
Automatic stopping device does not 1. Shut off siwtch (SW 8, 9) does not work properly
function 2. Automatic stop lever des not move or is sticky
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a. Broken lever spring or lever spring not in position
b. Automatic stop lever sticks to rear deck panel