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Playback Level Adjustment
Procedure:
Mode: Playback
test tape
P-4-L300
(315 kHz, 0 dB)
PERE
LINE OUT
Adjust RV101 (L-ch) and RV201 (R-ch) for DECK A and RV102 (L-ch)
and RV202 (R-ch) for DECK B so that the reading on VTVM meets the
adjustment limits below.
Adjustment Limits:
LINE OUT level: — 7.7 + 0.5 dB (0.30 — 0.34 V)
Level difference between channels: less than 0.5 dB
Check that the LINE OUT level does not change even if Playback and
Stop operation is repeated several times.
Adjustment Location: Main board (See Page 6.)
Record Bias Adjustment
|DECK B
Starting:
REC LEVEL control: Standard Record (See page 3.)
Procedure:
1.
Mode: Record
AF OSC
-
~~ attenuator
10kQ
+O0—O
©
600 Q
LINE IN
1) 315 Hz
_
D oute } 24.5 mV (~ 30 dB)
CS-122
not record portion
2.
Mode: Playback
recorded
portion
PERE
LINE OUT
3.
Playback the signal recorded in step 1.
Confirm that the 10 kHz playback output is 0 + 0.5 dB relative to the 315
Hz output. If necessary, adjust RV403 (L-ch) and RV503 (R-ch) and
repeat the steps given above.
Adjustment Location: main board (See Page 6.)
TC-W421
Record Level Adjustment
|DECK B
Starting:
REC LEVEL control: Standard Record (See page 3.)
Procedure:
1.
Mode: Record
AF OSC
CS-122
C9
not record portion
~
attenuator
10 kQ
etlheo O00] ly
set
os
600 (2
LINE IN
315 Hz, 69.1
mV (— 21 dB)
2.
Mode: Playback
recorded
portion
PET:
LINE OUT
3.
Playback the signal recorded in step 1.
Confirm
that signal level is within
the adjustment
limits below.
If
necessary, adjust RV141 (L-ch) and RV241 (R-ch) and repeat the step 1 —
2.
Adjustment Limits: — 22.7 dB + 0.5 dB (53.6 — 60.2 mV)
Adjustment Location: main board (component side) (See Page 6.)
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