Tape Deck Adjustments - Sanyo TRC-8800 Service Manual

TAPE DECK ADJUSTMENTS
~ ~.
HEAD Replacement AND AzlMuTHADJusTMENT
(a) Head replacement
After replacement, demagnetize the heads by
using a degausser.
n,
E. HEAD
Be sure to clean the heads before attempting
to make any adjustments.
*
L
R/P HEAD
Q'
All wiring should be returned to the original
position
after work is completed.
(b)
(1)
(2)
(3)
(4)
Head azimuth adjustment
Load the test tape ( VTT-703, etc. :10 kHz ) for
azimuth adjustment.
Press the PLAY button.
Use a cross-tip screwdriver to turn the screw for
azimuth adjustment so that the outputs are maximized.
After completion of the adjustment, use thread lock
(TB-1 401 B) to secure the azimuth-adjustment screw.
HEAD AZIMUTH ADJ.
b.
(1
(2
(3
'L
c.
reading of 3,000 Hz
SPEED CONTROL
VOLUME(CENTER)
CHECKING THE MECHANISM TORQUES
AND TENSION
Clean the head, capstan and pinch roller before making any measurement.
Measurement
Take-up torque Back tension Tape tension
Cassette for PLAY: TW-21 11A Drive-power cassette
PLAY: TW-21 11A
measurement F. FWD/REW:TW-2231
TW-2412
PLAY
30 gr.cm or more 1.0- 8.0 gr.cm
60 gr. or more
F.FWD
60 gr.cm or more
REW
60 gr.cm or more
-2-