Pioneer PDA-4003 Service Manual

Contents

PDA-4003217. GENERAL INFORMATION7.1 ICPST9228N (IC14: DOWN CONVERTER ASSY)TV Control Microcomputer¶ The information shown in the list is basic information and maynot correspond exactly to that shown in the schematic diagrams.1234567891011121314151632 p07313029282726252423222120191817p06p05p04p03p02p01p00p41p40p33/ CNTR1p32/ CNTR0p31/ INT1 (REM IN)p30/ INT0 (FACT SW)RESETVccp17/ SRDDY (REM OUT)p16/ SCLKp15/ TXDp14/ RXDp13/ T1p12/ T0Not usedNot usedp11p10p23/IN3p22/IN2p21/ IN1p20/ IN0VINXINXOUTVssPIONEERPD5586AVOUT4GNDTCVcc3SUB(substrate)215No. Pin Name Description1 TC T PLH Control2 SUB Substrate ∗3 GND GND4 VOUT Reset Signal Output5 Vcc Vcc/Voltage DetectReset ICVOUTGNDTC VccSUB123 45Pin Assignment (Top view) Pin FunctionBlock DiagramPD5586 (IC27: DOWN CONVERTER ASSY)Pin Assignment (Top view)∗ Connected to GND.

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