Pioneer DC-X77Z Manuel d'entretien - Page 26
Parcourez en ligne ou téléchargez le pdf Manuel d'entretien pour {nom_de_la_catégorie} Pioneer DC-X77Z. Pioneer DC-X77Z 35 pages. Stereo double cassette tape deck amplifier
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7 , A D J U S T M E N T S
Tape speed adiustment
l.
Connect the frequency countr to the TPI terminal
(Dolby TP: L-ch) on the complex assembly.
2.
Turn the tape switch on.
3.
Mount the test tape STD-301 onto deck I.
4.
Short-circuit between terminals TP4, TP5 and Tp6
on the tape assembly and put the deck I into play
mode.
(STD-301 is play backed in double speed)
5.
Adjust with VR602 so that the playback signal
frequency of deck I become 6020H2 +20H2.
6.
Release the short-circuit between terminals Tp4,
TP5 and TP6.
7.
Put the deck I into play mode and adjust with
VR60l
so that the playback signal frequency
b e c o m e s 3 0 l O H z + l 0 H z .
(Note l: Be sure not to turn VR602 while perform-
ing the normal speed adjustment)
8.
At this point, be sure to confirm that the wow and
flutter are within 0.390 both in the double and nor-
mal speeds.
9.
Mount the test tape STD-301 onto deck II.
10. Short-circuit between terminals TP4. TP5 and TP6
on the tape assembly and put the deck II into play
mode.
(STD-301 is play backed in double speed)
11. Adjust with VR604 so that the playback signal
frequency of deck II becomes +20H2 against that of
deck I.
12. Release the short-circuit between terminals TP4.
TP5 and TP6.
13. Put the deck II into play mode and adjust with
VR603 so that the playback signal frequency of
deck II becomes +l0Hz against that of deck I.
(Note: Be sure not to turn VR604 while performing
the normal speed adjustment)
14. At this point, be sure to confirm that the wow and
flutter are within 0.390 both in the double and nor-
mal speeds.
( N o t e )
S h o r t - c i r c u i t b e t w e e n T p 4
( d o u b l e s p e e d ) a d j u s t m e n t .
a n d T P 5 d u r i n g t a p e s p e e d
V R 2 O 3
, " r o , ' H o
@
I:r
\rgrl
V R 6 0 4
@ @
VR603
V R 6 O 1
@ @
R 6 0
M E C H A N I S M C O N T R O L A S S E M B L Y
A W Z 1 3 0 9
F i g . 7 - 1 A d j u s t m e n t P o i n t