Read Sony CFD-CD777S Service Manual online
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3. Phase Check
Mode: FWD/REV playback (DECK A)
FWD playback (DECK B)
4. Set in the REV mode and repeat the step 1 to 3.
5. After the adjustment, lock the screws with locking compound.
5. After the adjustment, lock the screws with locking compound.
Adjustment Location:
Tape Speed Adjustment
Procedure:
Mode: FWD/REV playback (DECK A)
Mode: FWD/REV playback (DECK A)
FWD playback (DECK B)
Adjustment Values:
Frequency difference between the beginning and the end of the
tape should be within 1% (30 Hz)
tape should be within 1% (30 Hz)
Note:
(High speed: non Adjustment)
Adjustment Location: MAIN board (See page 15.)
Adjustment part
Frequency counter
RV302
2,910 to 3,090 Hz
+
–
–
V
H
+
–
Screen pattern
Good
Wrong
in phase 45
°
90
°
135
°
180
°
L-CH
R-CH
set
32
Ω
32
Ω
oscilloscope
PHONES jack (J301)
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
+
–
set
32
Ω
frequency
counter
counter
PHONES jack (J301)
test tape
WS-48B
(3kHz, 0 dB)
WS-48B
(3kHz, 0 dB)
DECK-A DECK-B
deck A
deck B
screw
driver
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