Pioneer PDP-503CMX Service Manual

Also see for PDP 503CMX: Technical manual Quick reference parts lists Operating instructions Technical manual Technical manual

PDP-503CMX, PDP-503MXE, PDA-5002145No. Pin Name Function51 FR_SEL Output free running in the video signal no input52 RGB_SEL Input switch of INPUT1 (Dsub15) / INPUT2 (BNC)53 POWER POWER ON/OFF output54 BUSY Busy input from the microcomputer55 BUSY30 Busy input from IC3056 IN3DET INPUT3 input detection57 IN4DET INPUT4 input detection58 ACL_SW Switch the peak ACL function59 NC Non connection60 PNL_MUTE Panel drive stop61 NC Non connection62 VCC 5V standby power63 I_DET I/P distinction signal (extra)64 VSS GND65 NC Non connection66 DIN_SEL Digital input switch trigger (IC102 side)67 SDIN_SEL Digital input switch trigger (DVI input side)68 FWE Enable for flash writing of the wide microcomputer69 MD2 Mode setting for flash writing of the wide microcomputer70 RST_WU Reset the wide microcomputer71 WE_WU Flash writing permission output for wide microcomputer72 WE_MD Flash writing permission output for module73 NC Non connection74 REQ_WU Communication request from the wide microcomputer75 RST2 Reset detection of wide microcomputer system 3.3V power supply76 EXT_INT Input signal switch77 A_MUTE1 Audio mute 178 A_MUTE2 Audio mute 279 H_POL H.SYNC polarity distinction80 V_POL V.SYNC polarity distinction81 (E)SCL I2C-BUS clock of E2PROM exclusive use82 (E)SDA I2C-BUS data of E2PROM exclusive use83 EEPRST E2PROM reset84 FIX_VAR AUDIO output signal switch (fixing, variable)85 SYNC_ST Presence distinction input of SYNC86 NC87 NC Non connection88 SIGRST Trigger for synchronous processing time shortening89 NC Non connection90 PLD_CE Enable for SYNC control PLD91 NC92 NC Non connection93 SLOT_ST A/D input for model distinction94 TEMP3 A/D input for temperature sensor 395 TEMP2 A/D input for temperature sensor 296 AVSS GND for AD conversion (GND connection)97 PM_ST Pull-up98 VREF AD conversion reference voltage99 AVCC Power supply for AD conversion100 RXD Serial 3 line data input