Samsung 09 Troubleshooting free download

File name 09_Troubleshooting.pdf

6. Troubleshooting No Power Detected (stand by LED OFF) NO F1S01 is normal? Change fuse YES NO D1S05~07, ZD1S01~2 Change short circuited or SHORT and OPEN opened parts are normal? YES NO Is there voltage at Check 2'st Voltage Collector of Q1S01 YES Operation of NO Q1S01 is Replace Q1S01 normal? YES Check feedback IC1S02 Samsung Electronics 6-1 Troubleshooting Key Operation or Remote Control Error Is the measurement of NO power with in normal value? Check power and front connector YES XT602 8MHz NO Check the circuity around the clock oscillation is normal? YES Check the circuity NO Check the circuity around around IC601 reset? IC601 reset YES Check the soldering NO Check the soldering around the around IC601 good? IC601 YES Check the circuity around the swith. Key operatious such NO check the condition of commmunication as STOP,PLAY,OPEN with Main Micom are normal? (IC601,52,66,11,42,44,RRQ,SRQ,SCLK, DATA-IN,DATA-OUT) YES End repairs STOP,PLAY,OPEN Key operatious are normal? YES Change IC701 6-2