Panasonic PT-FW300NTU Service Manual

Also see for PT-F300E: Operating instructions Operating instructions Service manual

Panasonic PT-FW300NTU Service Manual Manual pdf 53 page image

12 Block Diagram12.1. Power SupplyPower SupplyFAN 14 VFAN 14 VG G341B1B4Q2K2-P.C.BoardB-ModuleB/Q-ModuleP-ModuleQ-Module (CONTROLLER)STEP-DOWN CHOPPERK3K2K1K4K5F9101D910116P379815HOT COLDHOTCOLDPHOTOISOLATOR15 V AVRSWITCHINGTRANSFORMERSWITCHINGREGULATORPHOTOISOLATORPOWERFACTORCORRECTIONLAMPD9608Q9608D9609Q9610Q204Q205Q9611Q9606Q9607IC9602IC9603D9611Q9609D9612PWON3.4 VDC380 VTHERMOFUSEPower ControlST1Lamp ON/OFFL det3.4 V+6 VSTB 3.4 V+17 V12132341P2P1PHOTO-ISOLATORSD9604Q9604Q9614Q9603D9605D9606 DSQ9605 D9607B3B5B6Q136142Q3Vla ckeck7ST25LINEFILTERLINEFILTER15 V15 V4 2IGNITERBLOCKK1-P.C.BoardPower CordAC IN ~INTERLOCKSWITCHGDSGDSDSGGQ107A-P.C.BoardA4RECTIFIERDSDSHALF BRIDGEDRIVER(MASTER)HALF BRIDGEDRIVER(SLAVE)Q207Q203Q202IC201IC202Q206MAINPOWERSW9101SWSW SW8 9 7 1 2 13 12 615STB 17 VMAIN/STBYSTB 3.3 VFAN 14 V6 V3.3 VFAN 4-13.5 VA6A5Z1to Cfrom C1 31 3A-P.C.BoardZ-P.C.BoardDIRECT POWER OFF+forExhaustFan( )PT-FW300NTU / PT-FW300NTE / PT-FW300NTEA / PT-FW300U / PT-FW300E / PT-FW300EA / PT-F300NTU / PT-F300NTE / PT-F300NTEA / PT-F300U / PT-F300E / PT-F300EA53