2. Turn the adjustment screw and check output peaks. If the peaks4. After the adjustments, apply suitable locking compound to the
do not match for L-CH and R-CH, turn the adjustment screwparts adjusted.
so that outputs match within 2 dB of peak.
Adjustment Location:
L-CH
peak
output
within
level
2dBwithin 2dB
Adjustment screws
REC/PB head (deck A)
or PB head (deck B)
R-CH
peak
screw
position
Tape Speed Adjustment (Deck A)
screw
L-CHR-CH
position
peakpeak
Procedure:
1. Mode: Playback
test tape
3. Mode: Playback
WS-48B
(3kHz, 0dB)frequency counter
test tape
P-4-A100SPEAKER
(10kHz, �10dB)terminal (JK301)+
set
(L-CH)
oscilloscope�
LSPEAKER
terminal (JK301)
set
R2. Adjust the SFR501 so that the frequency counter reads 3,000
Hz ? 90Hz.
SPEAKER
terminal (JK301)Adjustment Location: DECK board
(R-CH)
Sample Value of Wow and flutter
Waveform of oscilloscope
W. RMS (JIS) within 0.3%
(test tape: WS-48B)
in phase45u90u135u180u[DECK BOARD] N Component side N
goodwrong
Tape Speed
CN501
SFR501
N 10 N |