Sony MZ-B100 - Page 28

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MZ-B100
Pin No. Pin name I/O Description
171 PLCTL O PL control signal output
172 SET CODE0 I Input terminal for the set (fixed at “L” in this set)
173 SET CODE1 I Input terminal for the set (open in this set)
174, 175 SET CODE2, 3 I Input terminal for the set (fixed at “L” in this set)
176 MIFVDD1 — Power supply terminal (for the microcomputer I/F block) (+2.3V)
177 MIFVSS1 — Ground terminal (for the microcomputer I/F block)
178 AOUT SEL — Not used (open)
179 SI0 I
Serial data input from the nonvolatile memory (IC804) and liquid crystal display element
module
180 SO0 O
Serial data output to the nonvolatile memory (IC804), A/D converter (IC301) and liquid
crystal display element module
181 SCK0 O
Serial clock signal output to the nonvolatile memory (IC804), A/D converter (IC301) and
liquid crystal display element module
182 XGUM ON I
Rechargeable battery detection switch (S804) input terminal
“L”: there is rechargeable battery
183 BEEP O Beep sound control signal output to the headphone amp (IC302)
184 NC O Not used (open)
185 VD SEL O VD power supply changeover signal output terminal Not used (open)
186 XMUTE O
Analog muting control signal output terminal to the headphone amp (IC302)
“L”: muting ON
187 LCD RST AUX O Reset control signal output terminal to the liquid crystal display element “L”: reset
188 PAUSE KEY I Pause key input terminal from the switch & LCD module
189 MIC SENSE O Not used (open)
190 XPATCH I Patch function detection input terminal “L”: patch function Not used (open)
191 OPT DET I DIN plug detection signal input terminal
192 XJACK DET I LINE IN plug detection signal input terminal
193 XMIC DET I Microphone plug detection signal input terminal
194, 195 PD S0, PD S1 O PD IC mode changeover signal output to the optical pick up
196 MIFVDD2 — Power supply terminal (for the microcomputer I/F block) (+2.3V)
197 to 199 MODE1 to 3 O
Power supply control signal output (for the over write head drive) to the over write head
drive (IC601)
200, 201 HD CON 1, 2 O Over write head control signal output to the over write head drive (IC601)
202 XTEST I Terminal for test mode set (nomally: open) “L”: test mode
203 XCS ADA O Chip select signal output to A/D converter (IC301)
204 XPD ADA O Power supply control signal output for the drive to A/D converter (IC301)
205 XCS LCD O Chip select signal output to the liquid crystal display element
206 LCD STB O Strobe signal output to the liquid crystal display element
207 LCD RST O Reset control signal output to the liquid crystal display element Not used (open)
208 REC LED O LED ON/OFF control signal output for REC display
209 LD ON O ON/OFF control signal output terminal of the laser diode Not used (open)
210 TSB SLV CHK O TSB slave detection signal output terminal
211 K-TAI MON — Not used (open)
212 K-TAI SW — Not used (open)
213 MCUVSS1 — Ground terminal (for the microcomputer block)
214 GND SW O GND changeover control signal output
215 XOPT CTL O Power supply ON/OFF control signal output for DIN PD drive
216 CS RTC O Chip select signal output to the clock IC
217 OFTRK O Off track signal output to RF amp (IC501)
218 MUTE O Analog muting control signal output “H”: muting ON Not used (open)
219 XCS NV O Chip select signal output to EEPROM (IC804)