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TV Repair Tips

SAMSUNG

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Size Model Chassis Symptom Problem Description Fix
15LTN1535LCDPowerDeadC109 (1000uF/16V)
17LTN1765XLCDPowerPower light blinks, but won't turn onC21, C43, C53, C54, C55, C57, C4276 (all 10uF/16V)
23LNS2386WX/XAAzzPowerDeadFuse on inverter .5A
25TXG2547  VerticalVertical Circuit had dry solder connection Resoldered Vertical IC
27TXT2782QX PowerBlows FuseReplace PT802S with a 4.5ohm thermistor (#1404-001154)
30TX-R3079WHX/XXA PowerDead, Fuse blownChange Thermister and fuse (1404-0012776)
32LN32A300J1D Videono video, but audio and backlight workopen fuse on T-COM.
32LN32B530P7F Powerpush power button and hear startup sound, but no pic or sound, power LED blinks 
32LNT3253HXXAAzzPowerDead setQM801, QM802, RM801 (.22/.5W)
32TXN3298HFX PowerSet shuts down intermittentlyResolder flyback pins
40LN0S4051DLCDPower Won't turn on, clicks repeatedlyC115 and C123, or just replace power supply (BN96-03775A)
40UN40C5000zzVideohad sound, but no pictureremove ribbon cable and trim edge off, reinsert
42HLR4266WS/XAADLPVideoSingle pixel width vertical ines on all video inputs except OSDReplaced DMD board
42HLR4266WX/XAADLPVideoSingle pixel width vertical ines on all video inputs except OSDReplaced DMD board
42HLR4266WXXAAzzVideoPicture flickersreplace ballast
42HLS4266W Powershuts down intermittently door switch cover not fully closed, check switch operation
42HPR4252C VideoYSUS module failureYSUS (996500032643, LJ92-01200A)
42HPT4254XzzPowerDead, clicks continuouslyResolder bad solder joints on SMP QX801 and QX802
42PPM42S3PlasmaVideoNo picture, but has soundpower supply (BN96-00249A) or C524=C525 (0.22uF/400V mylar)
43HLM437WL2PowerTimer, lamp and temp LEDs blinkingreplace ballast and lamp assemblies
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Warning

: Don't kill yourself.  If you do, don't blame us...  We totally warned you.  These tips are intended for qualified service technicians that know what they're doing.  Unqualified persons should never service their own equipment.  Televisions contain very high voltage that could kill you.