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Pioneer GT-X5 Service Manual page 12

Stereo cassette tape deck

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4. Fast Forward Mode
When the FF button is pressed IC401 pin 8
(TD
is changed to "L"
level, followed by pin
26 (FF SOL) being changed to "H" level 416ms
later. Q50L is thus turned on, activating the FF
solenoid to start fast forward operation.
F i g . 6 - 7
F F m o d e o p e r a t i o n
5. Rewind Mode
When the REW button is pressed, IC401 pin
7 (RE-W) is changed to "L" level, followed by pin
25 (REW SOL) being changed to "H" level 416ms
later. Q502 is thus turned on, activating the REW
solenoid to steut rewind operation.
+lx
;
lights up. And since pin 27 (LINE MUTE) of
this IC is changed to
('H"
level, the signal circuit is
muted. If the REC and PAUSE buttons are both
pressed, IC401 pin 20 tnEel and pin Zf IFAUSE-)
are changed to "L"
level, resulting in both the
REC and PAUSE indicators lighting up, and the
signal circuit being switched to recording circuit.
Furthermore, pin 27 ts opened, permitting output
of the signal to LINE OUTPUT, but since pin 28
has been changed to 66H" level, recording mute
mode is maintained.
q
pause $lX
BUrroN x
F i s . 6 - 9
PAU SE mode operati on
. PLAY-PLAY
MUSE
tc4o4
REW
BUTTON
f.frqp"t-
+,;
E0Y?5*or
REc +
BUTTON
F i g . 6 - 1 0 P L A Y P A U S E m o d e o p e r a t i o n
Fig. 6-8 REW mode operation
6. Pause Mode
The pause mode in this deck is released by
pressing the PAUSE button. The pause mode is
not released by pressing the PLAY button during
play/pause mode, or the REC button during re-
cording/pause mode. Note, however, that pressing
the PLAY button during recording/pause mode
switches the deck to play/pause mode, and pressing
the REC button during play/pause mode switches
the deck to recording/pause mode.
If the PAUSE button is pressed during stop mode,
pin 2 (FAttSE) and pin 21 (PAUSE) of IC401 are
both changed to "L" level, thereby lighting up the
PAUSE indicator. When both the PLAY and
PAUSE buttons are pressed, IC401 pin 2L is
changed to '(L" level, and the PAUSE indicator
1 2
. STOP-REC
PAUSE
r--r
lC4O4
O5Ol: OFF(z146ms)-ON
REC
MUTE
L I N E
M U T E
0502:OFF(4{6ms} -ON
F i g . 6 - 1 1 R E C P A U S E m o d e o p e r a t i o n

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