Xc-Is22Cd - Pioneer XC-IS22CD Service Manual

XC-IS22CD

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6.1.2 Playback Section
(1) Tape Speed Confirmation
No. Mode Input Signal/Test Tape
1 PLAY NCT-111 (3 kHz)
(2) Head Azimuth Adjustment
¶ This unit is equipped with auto tape selector.
¶ Do not switch between forward and reverse operation with the screwdriver inserted.
No. Mode Input Signal/Test Tape
STD-331E test tape
1 PLAY
(Playback: 10 kHz, –20 dB)
(3) Playback Level Adjustment
¶ Since this adjustment determines playback DolbyNR level, Perform it carefully.
No. Mode Input Signal/Test Tape
STD-331E test tape
1 PLAY
(Playback: 315 Hz, 0 dB)
TE
L 13942296513
6.1.3 Recording Section
(1) Recording Bias Adjustment
¶ After the adjustment, caution should be exercised so as not to become under bias by checking the distortion rate.
No. Mode Input Signal/Test Tape
REC/ Input a 315Hz signal to the LINE -
∗
1
PAUSE IN terminal.
Load the STD–632 test tape and
REC =
2 record/playback the 315Hz and
PLAY
10kHz signals. (see the Note below)
Note: Set the 10kHz input signal level to the same value as the 315Hz input signal level of step 1.
(2) Recording Level Adjustment
No. Mode Input Signal/Test Tape
REC/ Input a 315Hz signal to the LINE-
∗
1
PAUSE IN terminal.
www
REC = STD–632 test tape and record/
2
playback the 315Hz signal.
PLAY
.
50
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Adjustment Points
VR2701 (DECK ASSY)
(Refer to Fig. 6-3)
Adjustment Points
Head azimuth
adjustment Screw
(Refer to Fig. 6-3)
Adjustment Points
VR2301
L ch
VR2302
R ch
Adjustment Points
Input signal level
VR2801
L ch
VR2802
R ch
Adjustment Points
Input signal level
VR2401
L ch
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VR2402
R ch
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2 9
8
Measurement Points Adjustment Value
TP R (C2204)
3000 Hz
(DECK ASSY)
Measurement Adjustment
Points Value
TP L (C2203)
Max. Playback
TP R (C2204)
signal level
(DECK ASSY)
Measurement Adjustment
Points Value
TP L (C2203)
TP R (C2204)
–3.7 dBV
Q Q
(DECK ASSY)
3 6 7 1 3 1 5
Measurement Adjustment
Points
–23.7 dBV
TP L (C2203)
TP R (C2204)
Repeat adjustment until playback level of
(DECK ASSY)
the 10kHz signal is within 0.5dBV ±0.5dB
from that of the 315Hz signal.
Measurement Adjustment
Points
–7.7 dBV
TP L (C2203)
TP R (C2204)
Repeat recording, playback and
(DECK ASSY)
adjustment until playback level of the
co
315Hz signal becomes –7.7dBV±0.5dB.
.
9 4 2 8
Remarks
FWD adjustment
+10
Hz
REV Confirmation
–10
+60
( 3000 Hz Hz )
–60
Remarks
After adjustment, apply silicon
bond to the head azimuth
adjustment screw.
Remarks
0 5 8 2 9 9 4 2 8
Remarks
Value
Remarks
Value
m
9 9
9 9