Tape Mechanism Adjustment; Tape Mechanism Parts Location; Cassette Tapes; Measuring Instruments, Tools - Sanyo CLA-1380 Service Manual

TAPE MECHANISM ADJUSTMENT
CLEANING THE CONTACT POINTS
To
ensure proper charging of the handset batfety pack, clean the battery
charging terminals on the handset and the base station once a month by
wiping them with a soft cloth moistened lightly with isopropyl alcohol.
CASSEITE TAPES
After a message tape has been in use for
6
months,
you should turn if over
and use the other side for the next 6 months. After that you should replace it
with another Sanyo cassette designed for answering-system use. If you
decide to use another brand, make sure the tape is of high quality.
PREPARATION FOR ADJUSTMENTS
Measuring instruments, tools.
(1) Test tape
OA-W41 : Head azimuth (3kHz,
-1 OdB)
OA-W411 : Motor speed (3kHz, -lOdB)
MC-30 : Normal tape
(2) Oscilloscope
(3) AF-VTVM
(4) Frequency counter
CLEANING THE HEADS
To ensure continued high performance from the answering system, clean the
(5) Screwclriv"er (non-metallic) for adjustments.
head, pinch roller and capstan periodically, whenever dust or reddish-brown
oxide particles have accumulated. Failure to do so may result in inferior
sound qualify and inconsistent tape speed.
1. Open the cassette compartment lid.
2. Moisten a soft cloth or cotton swab with isopropyl alcohol, and gently rub
the surface of the heads, pinch roller and capstan until the dirt or oxide is
removed.
NOTE:
Remember that you own the unit. The telephone companv is not responsible
for its maintenance.
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PARTS LOCATION
MOTOR SPEED
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CN902
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VTVM
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OSCILLOSCOPE
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VR703
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SPEAKER 25 ohm
–16–