Sony RMT-V244, Руководство по обслуживанию

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5-3
Signal Pin No. I/O I/O Level
ASURA RESET
MA-325
I Normally “H”, “L” when service interruption is detected or restored
IC161
$º
ASURA CS
MA-325
I Chip select signal from timer microprocessor. V period “L” pulse
IC161
$¢
S IN
MA-325
I Serial communication data from timer microprocessor. V period “L” pulse
IC161
$∞
S OUT
MA-325
O Serial communication data to timer microprocessor. V period “L” pulse
IC161
$§
S CLK
MA-325
I Serial communication clock from timer microprocessor. V period “L” pulse
IC161
$¶
5-4. SYSTEM CONTROL – SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE (MA-325 BOARD IC161)
5-5. SYSTEM CONTROL – Hi-Fi AUDIO BLOCK INTERFACE (MA-325 BOARD IC161)
STOP/
TAPE TAPE PB • PB •
Signal Pin No. I/O FF/
LOADING UNLOADING
PB
PAUSE
SLOW
×
2 CUE REVIEW REC
PAUSE
REW
AU ENV
MA-325
I AF RF envelope signal input terminal for automatic tracking.
IC161
%ª
A MUTE
MA-325 O
L L L L H H H H H L L
IC161
#¡
(O.D)
AF REC P
MA-325
O L L L L L L L L L H L
IC161
2
AF SWP
MA-325
O * 1 * 1 * 1 * 1 * 1 * 1 * 1 * 1 * 1 * 1 * 1
IC161
FULL ERS
MA-325 O
H H H H H H H H H L H
IC161
#§
(O.D)
∗
1. 30 Hz 50% duty pulse approx. 5 msec delayed from RF SW P.
100