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SAMSUNG Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SAMSUNGUN32F4300
Turns on without image (backlight on)CD24 shorted on the VCON boardReplace.Maurilio
SAMSUNGCL29Z43MQ
Device did not hold the tune, (it kept escaping as if it were a defective varicap)Check if any of the resistors in series are open (r829, r831 and r830 all 15k) in my case it was r830.Replace the resistors. (edfesom varjota-ce)Edfersom
SAMSUNGCL14C600KJ
Turns on without image, adjusts the screen and the retrace lines appear.Replace diode dz209, 9v1, next to the rgb connector.DJ PITUKA
SAMSUNGLN32R71BAX
Does not tune to cable/catv channels.Replace c151 and c152.electronicssupplyparts - Gramado/RS
SAMSUNGPL50A450P1
Beeps and doesn't turn onSolda fria no transistor ub801Transistor in front of the transformer that is next to the giant transformerDarci Denzer
SAMSUNGCL29Z43MQ
The TV only turned on with a stripe at the top of the screen and turned off quickly.Vertical ci (la78045) varied.Replace the same. (edfersom varjota ce)Edfersom
SAMSUNGPL43F4000
Turning offRemove or replace c1024 and c1025MATHEUS
SAMSUNGLN26D450G1G
When it turns on, it comes on normally and after about 40 minutes, the screen starts flashing and then the backlight turns off and tsound is only audio.Transistor on the power supply qb801 with leakage -2sd1347, replace without measuring.Marcos Vinicius SSA-BA
SAMSUNG LN40B530P2M
The lamps don't turn onOne of the bulbs burned out, triggering the protectionWhen turning on the lamps, they blink and then turn off.. test one by one with the board itselfDEBIQUE
SAMSUNGCL21K40MQ-
It doesn't turn on, tsound's just a tick, noiseCap cr409, 681x2kv toasted, and cr404, 681x2kv, just cast.DJ PITUKA
SAMSUNG UN49J5200AG
Stand by blinking and won't turn onMotherboardReplace the motherboard
SAMSUNGPS43E450 BN44-00508B
Check ds857 and ds858 (sff1005g)Mário Martins
SAMSUNGUN40H5103AG
Only the LED stays on without blinkingTsound was no reason, it was out of nowsound!
SAMSUNGT24A550
Turns on after a while, turns off, or changes in the image, stripes or bands without an image.Semi-short circuit,Leak in capacitors c202 and c201, measuring 65r, not getting hot, is next to ic204RNSPTEC
SAMSUNGLN40C530F1M
It works with the backlight off or intermittent, sometimes it has lighting and sometimes it doesn't.Ub801 failing, next to pc803s.Replace ub801.electronicssupplyparts - Gramado/RS
SAMSUNGUN50F5500
Turns on without image (backlight on)C204 shorted on tcon boardReplace or leave withoutMaurilio
SAMSUNGLN40D550K1G
When turning on, the LED flashes and the backlight comes on without an image and turns off returning to standbyTcom board defectShorted smd ceramic capacitor cp38, replace it or leave it without itPATRICK ELETRÔNICA
SAMSUNGUN48H4200AG
TV turns on, but no image, LEDs light up, TV with V withLeaking component on the t com, it didn't heat up.Cd10 on the run (giving 700r) at point havdd, plate v com.RNSPTEC
SAMSUNGCL21Z43MQ
I'm soundRelease the collector of the transistor qv09 next to the audio output disconnectorDJ PITUKA
SAMSUNGUE40F7000
U89A
The image vibrates at the topIc9801 slc1013Rui