3-20
DSR-80/80P/60/60P
4. Possible causes of errors
. Possible causes of errors
. Check procedure for the possible causes, and the related circuit boards and devices
Main code
Sub code
Possible causes
1. Tape is stuck to the tape running mechanism.
2. Tape is loosely wound in the cassette.
3. Cassette tape is not confined properly.
(Cassette compartment is unlocked.)
4. Reel motor does not generate the correct torque.
5. Abnormality of reel FG
6. Tension regulator is defective.
7. Cut-and-spliced tape is used.
8. Top detector and end detector are defective.
9. Pinch roller has insufficient pressure against capstan.
02 06
403 574 554 402 355 058 154 274 594 494 395 496 6A7
503 674 654 454 375 078 174 874 694 596
603 803 474 194 696
255
855
A55
A75
A95
OOOO O O O
OOOOO OO
OOOO OOOOO
OOOOOOOOOOOOO
OOOOO OOOOOOO
O
OO O O OO
OO OO O
OO
Possible causes
1. Tape is stuck to the tape running
mechanism.
. Tape is dirty.
. Tape run mechanism is dirty.
. Humidity or condensation
2. Tape is loosely wound in the
cassette.
. A tape which has been used for
many times, is used.
. A damaged tape is used.
3. Cassette tape is not confined
properly.
(Cassette compartment is
unlocked.)
Check items and check procedure
. Check if tape is stuck to tape guides or drum.
. Check if foreign material is adhered to tape.
. Check if tape is damaged.
. Check if foreign material is adhered to tape run
mechanism and drum.
. Check if tape has severe non-uniform winding.
Check that the four pins of the cassette
compartment are inserted into the holes of the slant
table.
Check that the cassette compartment retainer is
securely fastened.
↓
If a cassette compartment is unlocked when a
cassette compartment is inserted, exchange the
cassette compartment.
↓
When a cassette compartment is lock after it is
exchanged, the trouble is caused by the cassette
compartment. Otherwise the trouble is caused by
the defective drive circuit.
Related circuit boards and devices
SV-184 board
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