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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 1dB.
L-CH
peak
R-CH
eak
Screw
P
position
—
screw angle
L-CH
R-CH
peak
peak
3. Playback Mode
test tape
P-4-A100
(10kHz, ~ 10dB)
L-CH
Oscilloscope
Output level measurement point
(see page 9)
screen pattern
inphase
45°
)
good
4. Change the review playback mode and repeat the steps | to 3.
5. After the adjustment, lock the adjustment screw with suitable
locking compound.
Adjustment Location :
— record/playback head (Deck A and B) —
Forward
Reverse
Side
Side
|
ane
ene
Adjustment Screws
Tape Speed Adjustment
Procedure :
@ Perform high speed adjustment before normal speed adjust-
ment.
Mode : Playback
test tape
WS-48B
(3kHz, 0dB)
frequency counter
Output level measurement point
(see page 9)
Frequency counter
5,970 to 6,030Hz
* High
a
PB Rv6s1 |
Normal
2,940 to 3,090Hz
* Continue to press HIGH SPEED DUBBING switch (S545) in
playback mode : High speed playback.
Frequency difference between the begining and the end of the
tape should be within + 3%.
Frequency difference between deck A and deck B the biginning
of the tape should be within 1.5%.
Adjustment Location : AUDIO board.
(see page 11)
Playback Level Adjustment
Procedure :
~ FWD Playback Mode —
test tape
P-4-L300
VTVM
(315Hz, OdB)
Output level measurement point
(see page 9)
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 :
LINE OUT level : — 7.5 + 0.5dB (0.31 to 0.35V)
Level Difference between Channels : within 0.5dB
Confirm the OUTPUT
level does not change in play back mode
while changing the mode from playback to stop several times.
Adjustment Location : AUDIO board.
(see page 11)
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