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15
Tape Speed Adjustment
DECK B
• Execute only if connected to the STR-NX1/NX3
Mode: Playback
1. Insert the WS-48B into the deck B.
2. Press the
2. Press the
G
(DECK B) button.
3. Press the
[HI-DUB]
button in playback mode.
Then at HIGH speed mode.
4. Adjust RV1001 on the LEAF SW board do that frequency
counter reads 6,000 ± 180 Hz.
5. Press the
[HI-DUB]
button.
Then back to NORMAL speed mode.
6. Adjust RV1002 on the LEAF SW board so that frequency
counter reads 3,000 ± 90 Hz.
Adjustment Location: LEAF SW board
Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS)
Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS)
(WS-48B)
Playback level Adjustment
DECK A DECK B
Procedure:
Mode: Playback
Mode: Playback
Deck A is RV311 (L-CH) and RV411 (R-CH), Deck B is RV301
(L-CH) and RV401 (R-CH) so that adjustment within specified
value as follows.
(L-CH) and RV401 (R-CH) so that adjustment within specified
value as follows.
Specified Value:
AUDIO OUT jack PB level: 301.5 to 338.3 mV (–8.2 to –7.2
dB) level
difference between the channels: within ± 0.5 dB
dB) level
difference between the channels: within ± 0.5 dB
Adjustment Location: AUDIO board
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.
so that outputs match within 1dB of peak.
3. Mode: Playback
4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the
5. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location: Playback Head (Deck A).
Record/Playback/Earth Head (Deck B).
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
Output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
test tape
P-4-A100
(10 kHz, –10 dB)
P-4-A100
(10 kHz, –10 dB)
oscilloscope
AUDIO OUT (R) jack
L-CH
R-CH
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
AUDIO OUT (L) jack
L-CH
R-CH
PFJ-1
or
STR-NX1/
NX3
set
forward
reverse
Open the cassette holder
and unhock six claws of
the sub panel (TC2)
with tweezers or something,
then remove the sub panel (TC2).
and unhock six claws of
the sub panel (TC2)
with tweezers or something,
then remove the sub panel (TC2).
+
–
–
AUDIO OUT jack
test tape
WS-48B
(3 kHz, 0 dB)
WS-48B
(3 kHz, 0 dB)
frequency counter
set
STR-NX1/
NX3
+
–
–
test tape
P-4-L300
(315 Hz, 0 dB)
P-4-L300
(315 Hz, 0 dB)
level meter
AUDIO OUT jack
PFJ-1
or
STR-NX1/
NX3
set
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