Semp TV Repair: Common Faults and Solutions.

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Semp Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem	Solution	By
SEMP	TV2134B	Totally inoperative	C634 amended	Replace the same	Jarbas (ELETRO-SERV)
SEMP	LC4246FDA	After a while the lights blink or when they turn off and on again	The glue resin under the resistors	Rf901-902-904-913-924-920 remove the resistors, clean the PCI and reset again	Alvaro (prolar)
SEMP	TV2092 U16	LED comes on, press the power button, it takes a while to turn on	C 887 100 x 25 power supply secondary		Osmildo, Nova Lacerda MT
SEMP TOSHIBA	2934 SL U9/U11	Fell closed vertical radius	I replaced q301 stv8172 it didn't open normal voltage the 60hz pulse was missing I checked the micro voltage it was missing 5v supply shorted regulator output pin causing the shorted varicap problem		ARNALDO OTSUKA
SEMP TOSHIBA	TV 2981 KAVS LEM 7	Sometimes it turned on, sometimes it didn't, it kept flashing standby and noise from the speaker	C819 - 22/100 uf capacitor	Replace! as I didn't have the same one, I put the 33/160 v one. It was 100%	BSE manoel bonfim
SEMP	2084 FAV U 11	Vertical closed	I already changed the vertical	I want a tip	gilmar
SEMP	TV2084 FAV U11	White screen with no characters, poor contact.	After redoing the critical resoldering terminals, it presented a white screen and no commands on the keyboard or on the control. First, for prevention, I replaced the d901. Then the epron. but this defect persisted. So I deduced that it was another component that could not be the micro or other processor because the local clock and data readings came from the infra sensor.	I replaced the infra sensor with another original one, the TV was like new.	ZAK som
TV SEMP	TV 1470	Turns on and off then power supply +b high	D812 defective		antonio c. joão
SEMP	TV2050	Dead	Exchange of the q804 (j6806 for a d2553) and also the 220mf/160v capacitor884		arnaldo j m p
SEMP	TV 2016 MMS U17	No squeaking sound and snoring a lot	Removal of pci- ps01a next ca 68 capacitor		Wislen Alves
SEMP	1492 U16	Not starting	Changing the q402 comes out for the hug		eletronica diones
SEMP	U11 U11	Stripe on the left side, slowly heating horizontally, and subsequently causing burning of the flyback and sh	D320	Replace diode d 320, I already noticed this defect on d 410 and the capacitor connected to it is 2n2	Roberto Consertos
SEMP	TV2082-BAV EAV U8	Turn on and off	Irregular factory weld (osmose)	Resolder the capacitor c843 connected to pin 3 of the regulator l78mr05	TECTRON ELETRONICA IPATINGA MG
SEMP	2082BAV-EAV U8	Turn on and off	Cold solder or open or shorted capacitor c840 connected to pin 2 of the q840 regulator	The capacitor, due to being soldered using the osmosis method, has a soldering failure. or it simply opens or shorts out.	TECTRON ELETRONICA IPATINGA MG
SEMP	TV2134	Convex image on the sides with lines and expanded vertical (sometimes it doesn't take long to present this defect)	Q 302	Replace without measuring	haecio
SEMP	TV2070E UNIVERSAL	Vertical closed	2.2 microfarad capacitor c303 measuring good on the capacimeter	Replace it without having to measure	cosme
SEMP	TV2015MM U17	After fixing the power supply, the TV did not oscillate and the bus got very hot, the d412 10v and c864 47yf/50v were replaced and the vertical output stv9302	D412 10v zener shorted, c864 with cap. low and q301 vertical output shorted.		Ádrian Chapadão do Céu-Go
SEMP	TV2052(O)AV U-19	Return lines at the top of the image visible mainly on blue screen (08/10/2012)	100uf/35v dry c308 measured just 3uf		Helio (ELETROSONIC)
SEMP TOSHIBA	2999 LEM FS2	Don't care, kill +b	Chap. of ceramic do scin	Replace the same	eletronica shalon
SEMP	TV2134	Inoperative, without primary power supply or standby LED lit up.	R 606 mf72 changed, I put an NTC 10 and everything was fine.		Alvanyr