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CFS-W301
|
1-2.
TAPE
RECORDER
SECTION
ELECTRICAL
ADJUSTMENTS
Record/playback Head Azimuth Adjustment
Note: The adjustment
should be performed in the order
Procedure:
given in this service manual. The adjustments should
be performed for both L-CH and R-CH.
1.
Mode: FWD playback
@
Switches
and
controls should be set as follows
unless otherwise specified.
FUNCTION:
TAPE (RADIO OFF)
VOLUME:
mechanical mid
TONE:
mechanical mid
test tape
P-4-A063
(6.3 kHz, —10 dB)
@® Standard Input Level
source impedance
300 Q
0.77 mV
(—60 dB)
PHONES
2.
Turn
the adjustment
screw
for the maximum
output levels. If these levels do not match, turn
the
adjustment
screw
until both
of output
levels match together within 2 dB.
input level
@
Standard Output Level
[Hones [Speoker |
0.25 V (—10 dB) | 0.775 V (0 dB)
P-4-A063
| 6.3 kHz, —10 dB | Azimuth Adjustment
WS-48A
3 kHz,
0 dB | Tape Speed Adjustment
within
2dB
Test tape:
R-CH
screw
peak
position
—*
screw position
L-CH
3.
Phase Check
Mode:
playback
test tape
P-4-A063
—_
iB.
(6.3 kHz,
—10 dB)
Oscilloscope
PHONES
Screen pattern
Deck B
Adjustment screw
in phase
45°
90°
135° — 180°
Ona
ts
Sree es,
good
wrong
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