MZ-R501/R501PC
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169 | CLK SEL | O | System clock select signal output to the power control (IC901) |
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170 | OPEN CLOSE SW | I | Open/close detection switch (S806) of the upper panel input terminal (A/D input) | ||||||
“L”: when upper panel close |
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171 | GND SW | O | Control signal output to the ground (GND) changeover switch |
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172 | SET CODE0 | O | Input terminal for the set (fixed at “L” in this set) |
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173, 174 | SET CODE1, 2 | O | Input terminal for the set (open in this set) |
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175 | SET CODE3 | O | Input terminal for the set (fixed at “L” in this set) |
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176 | MIFVDD1 | — | Power supply terminal (for the microcomputer I/F block) (+2.3 V) | ||||||
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177 | MIFVSS1 | — | Ground terminal (for the microcomputer I/F block) |
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178 | (AOUT SEL) | O | HP/LINE changeover signal output | Not used (open) |
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179 | SI0 | I | Serial data input from the nonvolatile memory (IC804) and liquid crystal display | ||||||
element module |
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180 | SO0 | O | Serial data output to the nonvolatile memory (IC804), A/D converter (IC301) and | ||||||
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181 | SCK0 | O | Serial clock signal output to the nonvolatile memory (IC804), A/D converter (IC301) | ||||||
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182 | (XGUM ON) | I | Battery pack detection switch input terminal for the charge |
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“L”: there is battery pack for the charge | Not used (open) |
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183 | BEEP | O | Beep sound control signal output Not used (open) |
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184 | NC | O | Not used (open) |
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185 | VD SEL | O | VD power supply changeover signal output terminal | Not used (open) | |||||
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186 | (XMUTE) | O | Analog muting control signal output terminal | “L”: muting ON | Not used (open) | ||||
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187 | LCD RST AUX | O | Reset control signal output terminal to the liquid crystal display element “L”: reset | ||||||
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188, 189 | NC | O | Not used (open) |
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190 | XPATCH | I | Patch function detection input terminal | “L”: patch function | Fixed at “L” in this set | ||||
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191 | OPT DET | I | DIN plug detection signal input terminal |
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192 | XJACK DET | I | LINE IN plug detection signal input terminal |
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193 | (XMIC DET) | I | Microphone plug detection signal input terminal Not used (open) | ||||||
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194, 195 | PD S0, PD S1 | O | PD IC mode changeover signal output to the optical pick up |
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196 | MIFVDD2 | — | Power supply terminal (for the microcomputer I/F block) (+2.3 V) | ||||||
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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) |
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200, 201 | HD CON 1, 2 | O | Over write head control signal output to the over write head drive (IC601) | ||||||
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202 | REC WBL SW | O | LPF changeover switch input terminal when REC/PB control | Not used (open) | |||||
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203 | XCS ADA | O | Chip select signal output to A/D converter (IC301) |
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204 | XPD ADA | O | Power supply control signal output for the drive to A/D converter (IC301) | ||||||
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205 | XCS LCD | O | Chip select signal output to the liquid crystal display element |
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206 | LCD STB | O | Strobe signal output to the the liquid crystal display element |
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207 | LCD RST | O | Reset control signal output to the liquid crystal display element | Not used (open) | |||||
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208 | (REC LED) | O | LED ON/OFF control signal output for REC display | Not used (open) | |||||
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209 | (LD ON) | O | ON/OFF control signal output terminal of the laser diode Not used (open) | ||||||
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210 | (TSB SLV CHK) | I | TSB slave detection signal input terminal |
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211, 212 | I | Not used (open) |
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213 | MCUVSS1 | — | Ground terminal (for the microcomputer block) |
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214 | CAV CLV SW | O | CAV/CLV changeover control signal output | Not used (open) |
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215 | XOPT CTL | O | Power supply ON/OFF control signal output for DIN PD drive |
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216 | (CS RTC) | O | Chip select signal output to the clock IC | Not used (open) |
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217 | OFTRK | I | Off track signal input from RF amp (IC501) |
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218 | MUTE | O | Analog muting control signal output | “H”: muting ON |
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219 | XCS NV | O | Chip select signal output to EEPROM (IC804) |
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220 | XRST MTR DRV | O | Reset control signal output to the motor driver (IC701) |
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221 | XRF RST | O | Reset control signal output to RF amp (IC501) |
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222 | MCUVDD3 | — | Power supply terminal (for the microcomputer block) (+1.5 V) |
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