Sony MZ-R909 Service Manual page 53

Pin No.
Pin Name
197 to
MODE1 to 3
199
200, 201 HD CON 1, 2
202 XTEST
203 XCS ADA
204 XPD ADA
205 XCS LCD
206 LCD STB
207 LCD RST
208 REC LED
209 LD ON
210 TSB SLV CHK
211 K-TAI MON
212 K-TAI SW
213 MCUVSS1
214 GND SW
215 XOPT CTL
216 CS RTC
217 OFTRK
218 MUTE
219 XCS NV
XRST MTR
220
DRV
221 XRF RST
222 MCUVDD3
223 SPDL MON
224 XAVLS
225, 226 JOG A, B
227 XHOLD SW
228 SYNC REC
229 TSB SSB CTL
230 PROTECT
231 FLASHVDD
232 FLASHVSS
233 SLD MON
234 VLON
235 SLEEP
236 FFCLR
237 CHG GAIN
238 CHG
239 TUN REG ON
240 XHP STBY
241 MIFVDD3
242 MIFVSS2
243 TEST2
244 NC
I/O
Power supply control signal output (for the over write head drive) to the over write head
O
drive (IC601)
O Over write head control signal output to the over write head drive (IC601)
I Terminal for test mode set (nomally: open) "L": test mode
O Chip select signal output to A/D converter (IC301)
O Power supply control signal output for the drive to A/D converter (IC301)
O Chip select signal output to the liquid crystal display element
O Strobe signal output to the liquid crystal display element
O Reset control signal output to the liquid crystal display element Not used (open)
O LED ON/OFF control signal output for REC display
O ON/OFF control signal output terminal of the laser diode Not used (open)
O TSB slave detection signal output terminal
—
Not used (open)
—
Not used (open)
—
Ground terminal (for the microcomputer block)
O GND changeover control signal output
O Power supply ON/OFF control signal output for DIN PD drive
O Chip select signal output to the clock IC
O Off track signal output to RF amp (IC501)
O Analog muting control signal output "H": muting ON Not used (open)
O Chip select signal output to EEPROM (IC804)
O Reset control signal output to the motor driver (IC551)
O Reset control signal output to RF amp (IC501)
—
Power supply terminal (for the microcomputer block) (+1.5V)
I Spindle servo monitor signal input from the motor driver (IC551)
I Input terminal for AVLS switch detection signal
I Jog dial pulse input terminal from the switch & LCD module
I HOLD switch (S801) input terminal "L": hold ON, "H": hold OFF
I SYNCHRO REC switch (S802) input terminal "L": OFF, "H": ON Not used (open)
O TSB/SSB changeover control signal output Not used (open)
Detection input terminal of the record check claw from the protect detection switch (S803) "L":
I
recording possible condition, "H": protect
—
Power supply terminal (for the internal FLASH ROM) (+2.4V)
— Ground terminal (for the internal FLASH ROM)
I Sled servo monitor signal input from the motor driver (IC551)
O Power supply control signal output for the laser diode drive to the power control (IC901)
O System sleep control signal output to the power control (IC901) "H": sleep ON
O Input latch output for the start switching to the power control (IC901)
O Charge gain control signal output to the power control (IC601)
O Charge ON/OFF control signal output to the power control (IC601) "H": charge ON
O Not used (open)
O Power supply control signal output terminal for the headphone amp Not used (open)
—
Power supply terminal (for the microcomputer I/F block) (+2.3V)
—
Ground terminal (for the microcomputer I/F block)
I Input terminal for the main test (normally open)
— Not used (open)
Description
MZ-R909
53