Pioneer CT-660BK Service Manual page 24

CT-660,CT-S11
4. Playback Level Adjustment
@ This adjustment determines the DOLBY
NR level, and must be performed with great care.
INPUT terminals.
playback.
Remarks
Measuring location Adjustment value
Apply a 315Hz/-10dBv
(316mV) signal to the LINE
INPUT terminals.
REC LEVEL contro! |TP.DOL L (L ch.)
TP.DOL R (R ch.)
-7,.7dBv (412.1mvV)
Set the DOLBY NR switch to the ON position.
Set the TAPE SELECTOR switch to the CrO2 position.
Set the TAPE SELECTOR switch to the METLAL position.
TP.DOL L (L ch.)
TP.DOL R (R ch.)
Record the above signal onto
the STD-610 test tape, and
Playback.
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