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Samsung AP17K series Manual
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5 TroubleshootingAP17K*/AP17J* 5-95-1-16 No VideoIC102 Pin 5, 8 and 10inputs are right?IC102 Pin 25, 28 and 30outputs are right? Check I 2C bus and +12 V line.YesYesNoCheck the signal cable connection.NoIC105 Pin 1, 3 and 5outputs are right?Check +12 V, +80 V line.Check and replace IC105.YesNoCathode DC levels are right?Check +80 V line.Check and replace IC104Check IC102 Pin 19, 20, 21YesNoG2 voltage is right? Check G2 wire,CRT Socket board and FBT.Change CRT.YesDone.NoCheck signal cable and connection.151617YesWAVEFORMS15 1.00 V (IC102,#5, 8, 10)16 1.00 V (IC102, #25,28,30)17 20.0 V (IC105, #1, 3, 5) |
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