Adjustment Of Reference Time - Pioneer PL-570 Service Manual

5. ADJUSTMENT OF REFERENCE TIME
Connect oscilloscope to CP
circuit ass'y PWX-011. Set
at O.2cm/sec.
Briefly short-circuit pins BR
tion circuit ass'y.
45 Prm Adjustrnent
3. Oscilloscope should show a trace of 2.4cm
(475msec 115msec)
If trace is longer or shorter, adjust
detection circuit ass'v PWX-011.
Fis. l
VR163 on
1 .
2.
pin of detection
scope sweep time
and BL on detec-
NOTE:
Always ensure that the 45rpm adjustment is performed
correctly before mahing the 33rpm adjustment. Failure
to do this will result in impaired performance.
33 Rpm Adjustment
5. Oscilloscope should show a trace of 4.5cm
(900msec tS0msec)
Fig. z
If trace is longer or shorter, adjust VR1e2 on
detection circuit ass'y PWX-011.
F i s . 3
6 .
4 .
4$
m
3 r 5
V R 1 6 3 ( 4 5 r p m )
V R r o z ( 3 3 r p m )
FICINEEFI
ELECTFICINIC
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