Sony TC-377 Service Manual page 15

8. Playback S/N Ratio Check 9. Record Head Azimuth and Track Position
Control/Switch Setting:
Adjustment
TAPE SELECT switch: NORMAL Control/Switch Setting:
TAPE SPEED selector: 7¥%ips(19 cm/s) | TAPE SELECT switch: NORMAL
MONITOR switch: TAPE TAPE SPEED selector: 7% ips (19 cm/s)
MONITOR switch: | TAPE
LINE RECORD
1. Mode: playback , VOLUME control: See page 16
Procedure:
1-19-F1 Procedure:
af osc
blank tape
LINE OUT
VIVM reading should be 0 dB (0.78V). If not,
make playback output level adjustment again.
With no tape threaded, keep on pushing shut-
off lever with finger.
Mode: playback
LINE OUT
Adjust azimuth adjusting screw for maximum
VTVM reading. ,
Note: If the maximum value of L-CH and
R-CH outputs can not be obtained at
; the same angle, adjust the screw mid-
Be sure that VIVM reading is less than -48 dB way between two screw positions.
(3 mV). (That value should not be fallen more
than 1 dB from the maximum value.)
LINE OUT
Turn the zenith adjusting screw by the same
angle of turns obtained in preceding step 4.
After the adjustment, check-tape path adjust-
ment on page 17 again.
Adjustment Location:
zenith adjusting screw record head
height adjusting screw azimuth adjusting screw