3. Mode: Playback (FWD)Tape Speed AdjustmentDECK B
Note:Start the Tape Speed adjustment as below after setting to the test
test tape
P-4-A100MAIN boardmode.
oscilloscope
(10 kHz, �10 dB)CN301In the test mode, the tape speed is high during pressing the
[HI-DUB] button.
(pin 1: L-CH)
Procedure:
(pin 2: GND)
VH1. Turn the power switch on.
set
2. Press thep button, [ENTER/NEXT] button and [DISCE3] button
simultaneously.
(The OVOLUME� on the fluorescent indicator tube will blink
(pin 3: R-CH)
while in the test mode.)
To exit from the test mode, press theI/u button.
waveform of oscilloscopeMode: Playback
test tape
WS-48B
in phase45 ° 90 ° 135 ° 180 °(3 kHz, 0 dB)frequency counter
goodwrong
+
set
�
4. Repeat setps 1 to 3 in playback (REV) mode.MAIN board
CN301 (Pin 1 : L-CH)
5. After the adjustments, apply suitable locking compound to the
(Pin 3 : R-CH)
pats adjusted.
1. Insert the WS-48B into the deck B.
Adjustment Location:Playback Head (Deck A).
2. Press theá button on the deck B.
Record/Playback/Erase Head (Deck B).
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
1Remove the four claws
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
2WindowSample value of Wow and Flutter:0.3% or less W.RMS (JIS)
(WS-48B)
Playback level AdjustmentDECK ADECK B
Procedure:
Mode: Playback
test tape
P-4-L300
level meter
(315 Hz, 0 dB)
+
set
�
MAIN board
CN301 (Pin 1 : L-CH)
(Pin 3 : R-CH)
ReverseFoward
Deck A is RV311 (L-CH) and RV411 (R-CH), Deck B is RV301
(L-CH) and RV401 (R-CH) so that adjustment within adjustment
level as follows.
Adjustment Level:
CN301 PB level: 301.5 to 338.3 mV (�8.2 to �7.2 dB) level
difference between the channels: within ? 0.5 dB
Adjustment Location: AUDIO board
� 17 � |
ACEC
