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2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
within
L-CH
1dB
peak
output
level
R-CH
peak
screw
position
3. Mode: Playback
test tape
P-4-A063
(6.3 kHz, –10 dB)
pin 28
L-CH
L
MAIN
board
IC101
R
R-CH
pin 37
waveform of oscilloscope
in phase 45 °
good
4. After the adjustments, apply suitable locking compound to the
pats adjusted.
within
1dB
screw
position
L-CH
R-CH
peak
peak
oscilloscope
pin 38
V
H
90 ° 135 ° 180 °
wrong
HCD-RV777D/RV888D/RV999D
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
reverse
forward
35
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