MZ-R501/R501PC
29
29
Pin No.
Pin Name
I/O
Description
223
SPDL MON
I
Spindle servo monitor signal input
224 to 226
(XAVLS), (SOUND 1, 2)
I
Not used (open)
227
XHOLD SW
I
HOLD switch (SW801) input terminal “L”: hold ON, “H”: hold OFF
228
(SYCN REC)
I
SYNCHRO REC switch input terminal “L”: OFF, “H”: ON Not used (open)
229
(SYNC LEVEL)
O
Not used (open)
230
PROTECT
I
Detection input terminal of the record check claw from the protect detection switch
(S803) “L”: recording possible condition, “H”: protect
231
FLASHVDD
—
Power supply terminal (for the internal FLASH ROM) (+2.4 V)
232
FLASHVSS
—
Ground terminal (for the internal FLASH ROM)
233
SLD 1 MON
I
Sled servo monitor signal input
234
VLON
O
Power supply control signal output for the laser diode drive to the power
control (IC901)
235
SLEEP
O
System sleep control signal coutput to the power control (IC901) “H”: sleep ON
236
FFCLR
O
Input latch output for the start switching to the power control (IC901)
237
(CHG GAIN)
O
Charge gain control signal output Not used (open)
238
(CHG)
O
Charge ON/OFF control signal output “H”: charge ON Not used (open)
239
(TUN REG ON)
O
Not used (open)
240
XHP STBY
O
Headphone standby signal output to the headphone amp (IC302)
241
MIFVDD3
—
Power supply terminal (for the microcomputer I/F block) (+2.3 V)
242
MIFVSS2
—
Ground terminal (for the microcomputer I/F block)
243
(TEST2)
O
Input terminal for the main test (normally open)
244
NC
—
Not used (open)
Summary of Contents for MZ-R501
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