Samsung 20050617095258859 DJ750 2Trouble TM free download

File name 20050617095258859_DJ750_2Trouble_TM.pdf

2. TroubleShooting 1.Main(Power) Power Trans PCB FUSE MAIN PCB NO NO PPF5,PPF6 Replace PPF5 , PPF6 PC5,PCB Voltage(+/- 21V) YES YES Check FUSE PPF1,or PPF2 Check for 1. Check PZD4. NO NO POWER-SENSE(5V) Check Main PCB 2. Check Micom Reset and Osc . at FRONT PCB Micom PC42 Voltage 5V. 3. Replace MICOM (UIC1) pin #9 of UIC1 YES YES Check pattern and Connector Wire POWER ON LEVEL NO NO Check 5V in Front PCB Check for HIGH Voltage UC16 or MAIN PCB PIC4 REPLACE PIC4 or PR5 (>3.5V) at UIC1; #pin82 or 5.6V Main Pcb PR9 YES Check for VFD1,2-53,54 NO Check Main Pcb PC10 (-34V) , VFD AC 3.5V, VFD PIN :- 27V PR14,PZD1,PZD2,PZD3 YES Check for RESET /OSC parts in Front PCB :UX2,UQ1 Samsung Electronics 2-1 2.Output YES Protection WORK PROTECTION Troubleshooting NO DVD PACK NO DVD PACK WORKING Troubleshooting WORKING OK YES Check Signal at NO Check Signal in DVD NO Connector ACW2 l on POWER PCB FIC1 INPUT and OUTPUT CHECK AMP PCB FIC4,FIC2,FIC80 YES PARTS OPEN