Pioneer PDR-W839 Service Manual

Also see for PDR-W839: Operating instructions Quick start guide Operating instructions Quick start guide

Contents

79PDR-W839POWER ON3CD SETUPCD1, CD2, CD3CD → CD-RLED flashFL display"POWER ON"YesNo• Blow out fuse (FU01) of the primary side on the POWER SUPPLY Assy• Blow out micro-fuse (IC02,IC03) on the POWER SUPPLY Assy• System controller (IC901) on the MAIN Assy breaks down• Check the following connections:MAIN Assy - OPERATING 1 AssyMAIN Assy - POWER SUPPLY Assy• Reset signal (MRESET) from the system controller to themechanism controller• Communication between the system controller and mech-anism controllerMSI,MSO,SSCK,SREQ,MACK• Blow out micro-fuse (IC04) on the POWER SUPPLY Assy• Check the connection between the MAIN Assy and CD-RCORE Assy• Blow out micro-fuse (IC02) on the POWER SUPPLY Assy• Check the power supply voltage on the CD-R CORE Assy(XPFAIL=H (normal))• Check the communication between the mechanism cont-roller and each LSIMSI, MSO, MSCK, EECS,AD0~7,XRD,XWR,ASTBWhen FL does not turn on at all:• Check the connection between the MAIN Assy and OPERATING1 Assy.• Check the communication lines (FLDI, FLCL, FLCE and FLRST)between the system controller (IC901) and FL driver (IC701).• FL Driver (IC701) on the OPERATING1 Assy breaks down.Check PointPOWER ON SEQUENCE (Display System)POWER ONSTOPIs the mecha.controller resetrelease?Is the communi-cation between mecha.controller and eachLSI start?Is the communi-cation between systemcontroller and mecha.controller start?Is the DISCdistinctionstart?YesYesYesYesYes "CD", "CD-R" or "CD-RW" segment turns on tothe right-side end of FLNo DISC?NoNoNoNoNoSETUP SEQUENCE (CD-R)Check PointWhen FL indication is dark or glimmers:• Malfunction of the POWER SUPPLY Assy7.1.3 POWER ON SEQUENCE