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Pioneer PORTATONE PSR-280 Service Manual Manual pdf 13 page image

Pioneer PORTATONE PSR-280 Service Manual

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Contents
  1. specifications
  2. panel layout
  3. circuit board layout
  4. block diagram
  5. disassembly procedure
  6. lsi pin description
  7. ic block diagram
  8. circuit boards
  9. test program
  10. data initialization
  11. midi implementation chart
  12. effect map
  13. parts list
Pioneer PORTATONE PSR-280 Service Manual Manual pdf 13 page image
PSR-280/PSR-28213PINNO. I/O FUNCTIONNAME PINNO. I/O FUNCTIONNAME1234567891011121314151617181920/RES/INTNUMA7A6A5A4A3A2A1A0B0B1B2B3B4B5B6B7VSSIIII/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OResetInterrupt requestNon-maskable interruptPort APort BGround2122232425262728293031323334353637383940C7C6C5C4C3C2C1C0D0D1D2D3/TXD4/RXD5//CKD6//INT2/STBYTIMERXTALEXTALVCCI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OI/OOIOIIIOIPort CPort D(Serial data output)(Serial data input)(Clock for serial operation)(Interrupt request 2)(Standby mode signal)TimerClockPower supplyHD63B05V0F073P (XR951A00) CPU MKS3: IC1PINNO. I/O FUNCTIONNAME PINNO. I/O FUNCTIONNAME12345678910111213141516171819202122232425262728293031323334353637383940S22S21S20S19S18S17S16S15S14S13S12S11S10S9S8S7S6S5S4S3S2S1VssOSC1OSC2V1V2V3V4V5CLK1CLK2VddMDRSR/WEDB0DB1OOOOOOOOOOOOOOOOOOOOOOIOOOOOIIII/OI/OSegment signal output for LCDdrivingGroundOscillatorOscillatorPower supplyData latch clockData shift clockPower supply (+5 V)Altamated signal for LCD driver outoutDisplay data interfaceRead/writeEnableData interfaceData interface41424344454647484950515253545556575859606162636465666768697071727374757677787980DB2DB3DB4DB5DB6DB7C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16S40S39S38S37S36S35S34S33S32S31S30S29S28S27S26S25S24S23I/OI/OI/OI/OI/OI/OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOData interfaceCommon signal output for LCDdrivingSegment signal output for LCDdrivingKS0076BQ-00 (XV226A00) LCD DRIVER LCD: IC701
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This manual is suitable for:
PORTATONE PSR-280PORTATONE PSR-282
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