Samsung CL-29K40MQ TV Repair: Common Faults and Solutions.

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Samsung CL-29K40MQ Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem	Solution	By
SAMSUNG	CL-29K40MQ	Do not turn on, LED off power supply goes into protection, high power supply 160v.	An oxidized jamp, that feeds the memory, p-281		Matheus
SAMSUNG	CL-29K40MQ	It turned on and after 20 seconds it turned off by itself. smelling burnt and shaky image.	Capacitor c803 (330mfx400wv) damaged.	I replaced the capacitor and it worked perfectly. the burning smell was from the melted positive pole.	MAX TEODORO
SAMSUNG	CL-29K40MQ	Does not turn on with high power supply 160 with LED off	R.924 close to memory	Replace r924	Rosivaldo
SAMSUNG	CL-29K40MQ	Defect in av1 when connecting the av1 cable it flashes	Zd704 9v1broken and c725 100k shorted	Replace these components	junior
SAMSUNG	CL-29K40MQ	Does not turn on, when plugged into the secondary socket it rises to 152v and drops, and the primary does not discharge	120k open resistor r821	Replace r821 de120k	JUNIOR
SAMSUNG	CL-29K40MQ	Secondary power supply presenting 50% of the voltages	47mf/50v capacitor c808 measuring good in two capacitors	Always replace the same one without measuring.	ELETRONICA C.R.
SAMSUNG	CL-29K40MQ	Dead secondary power supply with no voltage.	Regulator strw6750f	Whenever you replace the regulator, also replace the 6v2 dz814 diode.	ELETRONICA C.R.
SAMSUNG	CL-29K40MQ	Oscillates horizontally and turns off, triggering protection, LED flashes 4 times	See line vert sync pin 78 of the micro	Diodo d-305 ( 1n4148 )	VipCenter
SAMSUNG	CL-29K40MQ	Closing the sides (horizontal) low secondary power supply	Dz805 (tl431)		DANIEL SOLANEA PB
SAMSUNG	CL-29K40MQ K16A	No image. Sometimes it disappears and appears at intervals of approximately 3.5 seconds	Capacitor c410 470uf x 25v low capacitance or esr.	Replaced the capacitor, the problem persisted. I replaced it with a used capacitor and it solved the problem, lol...	JUMP ELETRÔNICA
SAMSUNG	CL-29K40MQ K16A	Turns on and with sound and image does not appear	Weak tube	Put 12v on the filament for 5 minutes, no more, and the defect will disappear for a few months	joaomvjr
SAMSUNG	CL-29K40MQ	With sound, without video and without OSD	Zd903 with leak	Zener de 5,6vts	This email address is being protected from spambots. You need JavaScript enabled to view it.
SAMSUNG	CL-29K40MQ	Seconds after switching on, whether or not tuned to a channel, the device turns off.	Replacement of capacitor c803.	Changing capacitor c803 (330μF/400v/electrolytic - the largest on the board).
SAMSUNG	CL-29K40MQ	Closing the sides (horizontal) low secondary power supply	Dz805 (tl431)		DANIEL SOLANEA PB
SAMSUNG	CL-29K40MQ K16A	No image. Sometimes it disappears and appears at intervals of approximately 3.5 seconds	Capacitor c410 470uf x 25v low capacitance or esr.	Replaced the capacitor, the problem persisted. I replaced it with a used capacitor and it solved the problem, lol...	JUMP ELETRÔNICA
SAMSUNG	CL-29K40MQ K16A	Turns on and with sound and image does not appear	Weak tube	Put 12v on the filament for 5 minutes, no more, and the defect will disappear for a few months	joaomvjr
SAMSUNG	CL-29K40MQ	With sound, without video and without OSD	Zd903 with leak	Zener de 5,6vts	This email address is being protected from spambots. You need JavaScript enabled to view it.
SAMSUNG	CL-29K40MQ	Seconds after switching on, whether or not tuned to a channel, the device turns off.	Replacement of capacitor c803.	Changing capacitor c803 (330μF/400v/electrolytic - the largest on the board).