Advertisement
,.
. .. . . .. ..
.... .... . ..-:
-.. .....-
\PE DECK ADJUSTMENTS
+EAD REPLACEMENT
fter replacement,
demagnetize
the heads by using a degausser.
e sure to clean the heads before attempting
to make any adjustments.
II wiring should be returned to the original position after work is completed.
+EAD AZIMUTH ADJUSTMENT
Connect
the oscilloscope
to
the
PHONES
socket.
Load the test tape(MTT-113N,
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 left and right outputs are maximized.
HEAD AZIMUTH
ADJ.
Press the STOP button.
After completion of the adjustment, use thread lock(TB-1401 B)
to secure the azimuth-adjustment
screw.
PIAY
MOTOR REPLACEMENT
BIAS FREQUENCY
ADJUSTMENT
TAPE
)
Connect the frequency counter to the HEAD terminal.
GND
)
Load the test tape(TDK-AD60,
etc.).
FREQUENCY
COUNTER
)
Press the REC & PLAY button.
m,.,
) Use a flat-tip screwdriver to turn the L9 for BIAS adjustment
TPI
0 IN
00000
so that the frequency counter becomes 65+/-2kHz.
CHECKING THE MECHANISM
TORQUES
AND TENSION
OIean the head, capstan and pinch roller before making any measurement.
Measurement
Take-up
torque
Back
tension
Tape
tension
Cassette for
PLAY: TW-2111A
PIAY : TW-2111A
Drive-power cassette
measurement
F.FWD/REW : TW2231
TV%2412
PLAY
30-60
gr.cm
2.0- 4.5 gr.cm
60 gr or more
F.FWD
55-120
gr.cm
-----
-----
REW
55-120
gr.cm
-----
. ----
*
/ .
-5-
!
Advertisement
