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— 9 —
2.
Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 1 dB.
these levels do not match, turn the adjustment screw until both
of output levels match together within 1 dB.
3.
Playback Mode
4.
Change the playback mode and repeat the steps 1 to 3.
5.
After the adjustment, lock the adjustment screw with suitable
locking compound.
locking compound.
Adjustment Location:
— Record/playback head (Deck A and B) —
Tape Speed Adjustment
DECK A
DECK B
Note: Start the Tape Speed adjustment as below after setting to the
test mode.
Set to test mode. (Press key switch same time CD STOP
DECK A STOP and DECK B STOP button.)
Test mode off. (Power off.)
Set to test mode. (Press key switch same time CD STOP
DECK A STOP and DECK B STOP button.)
Test mode off. (Power off.)
Procedure:
• Perform high speed adjustment before normal speed adjustment.
• Perform high speed adjustment before normal speed adjustment.
Mode: Playback
* Continue to press HIGH SPEED DUBBING switch (S259) in
playback mode : High speed playback.
Frequency difference between the beginning and the end of the
tape should be within ± 3%.
Frequency difference between deck A and deck B the beginning
of the tape should be within 1.5 %.
tape should be within ± 3%.
Frequency difference between deck A and deck B the beginning
of the tape should be within 1.5 %.
Adjustment Location: AUDIO board (See page 10)
Sample Value of Wow and flutter
W.RMS (JIS) within 0.3%
(test tape: WS-48B)
(test tape: WS-48B)
Playback level Adjustment
DECK A
DECK B
Procedure:
— FWD playback Mode —
— FWD playback Mode —
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.
(L-CH) and RV401 (R-CH) so that adjustment within adjustment
level as follows.
Adjustment Level:
LINE OUT level : –8.2 to –7.2 dB (301.5 to 338.3 mV)
Level Difference between Channels : within 0.5 dB
Level Difference between Channels : within 0.5 dB
Confirm the OUTPUT level does not change in playback mode
while changing the mode from playback to stop several times.
while changing the mode from playback to stop several times.
Adjustment Location: AUDIO board (See page 10)
Speed
*High
Normal
Deck
A
B
A
B
Adjustment
RV652
RV652
RV651
RV651
Frequency counter
5,910 to 6,090 Hz
2,910 to 3,090 Hz
+
–
–
VTVM
set
test tape
P-4-L300
(315 Hz, 0 dB)
P-4-L300
(315 Hz, 0 dB)
Output level measurement point
(See page 8)
(See page 8)
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