Read Sony CFD-44 Service Manual online
– 10 –
Record/Playback Head Azimuth Adjustment
Procedure :
1. Mode : playback
Procedure :
1. Mode : playback
test tape
P-4-A063
(6.3kHz, - 10dB)
P-4-A063
(6.3kHz, - 10dB)
set
32
Ω
2
jack (J301)
level meter
L-CH
peak
peak
R-CH
peak
peak
L-CH
peak
peak
R-CH
peak
peak
Screw
position
position
output
level
level
within
2dB
within
2 dB
screw position
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 2dB.
these levels do not match, turn the adjustment screw until both
of output levels match together within 2dB.
3. Phase Check
Mode : playback
L-CH
set
32
Ω
R-CH
32
Ω
in phase 45
°
90
°
135
°
180
°
good
wrong
screen pattern
test tape
P-4-A063
(6.3kHz, - 10dB)
P-4-A063
(6.3kHz, - 10dB)
2
jack (J301)
OSCILLOSCOPE
Adjustment Location : – record / playback head –
adjustment screw
TUNER SECTION
AM Section
Function switch
: AM
Volume
: MAX
AM RF signal
generator
generator
30% amplitude modulation by 400Hz
signal.
Output level : as low as possible
signal.
Output level : as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
FM Section
Function switch
: FM
Volume
: MAX
FM RF signal
generator
generator
22.5kHz frequency deviation by
400Hz signal.
Output level : as low as possible
400Hz signal.
Output level : as low as possible
telescopic
antenna
terminal
antenna
terminal
0.01 F
µ
set
32
Ω
+
–
2
jack (J301)
level meter
+
–
VT
100
Ω
digital voltmeter
[MAIN BOARD] – Component side –
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