Gradiente GBT2911 TV Repair: Common Faults and Solutions.

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Gradiente GBT2911 Repair Guide: Common Issues and Fixes

Brand	Model	Fault	Detailed Problem	Solution	By
GRADIENTE	GBT2911	Sound coming and going depending on turning on and off and sometimes no sound during programming. normal video.	Replaced capacitor 805-10ufx160v.	It was open, causing replaces in the voltages of some circuits, I replaced it with 33μFx160v, because I didn't have the 47μF one, as they said to replace it. I also replaced c309, as the cover was completely shrunk due to the heat and had low capacitance, I inserted an x6	Luiz Fernando
TV GRADIENTE	GBT2911-TV2922	Bright no picture no sound retraction lines	Check ic802 reg. 3v3, if the voltage exceeds 3v5 it will cause this defect.		This email address is being protected from spambots. You need JavaScript enabled to view it.
GRADIENTE	GBT2911	Washed screen with normal audio and very weak image behind the gray screen	Change memory l16		samuel leite
GRADIENTE	GBT2911	No stand by, normal voltages. does not turn on	Change the 20,250 crystal	20.250	Eletrônica Nel
GRADIENTE	TV-2922/GBT2911...	Dark screen with retrace lines and background image	Broken transistor q830		Jhonye de Krapicuiba
GRADIENTE	GBT2911	Turns on and off; with no video and sound, the chroma ic appears to be shorted	Dz 401 zener diode 22 v com flake		MACCELETRONICA
GRADIENTE	TV2922 2924 2953 GBT2911	Dark image you increase the screen of the retrace line	R831	R831	thiago
GRADIENTE	GBT2911	Nothing works	100n short capacitor c13 located on pin 46 of the micro controller	Appears to be the micronas shorted	MACCELETRONICA
GRADIENTE	GBT2911	Trapeze	It's typical of a shorted yoke, it wasn't the case. After some measurements I decided to replace the ic 301 stv 9325, vertical output. the image opened but continued with the washed screen and colored bands. after other measurements and many coffees I decided to replace the ic 301 with another one, new too, but purchased from another store. problem solved. New part is also suspicious!		paulorusso
GRADIENTE	GBT2911	Turns off after 20 minutes, then keeps turning off again and again.	Capacitor c805 10ufx160v.	Changing the capacitor, give preference to the 10μF 250v capacitor as it has greater heat dissipation, meaning it has a longer useful life.	WAGGUINHO
GRADIENTE	GBT2911	Turning off	Dry power supply capacitor 804
TV GRADIENTE	GBT2911-TV2922	Bright no picture no sound retraction lines	Check ic802 reg. 3v3, if the voltage exceeds 3v5 it will cause this defect.		This email address is being protected from spambots. You need JavaScript enabled to view it.
GRADIENTE	GBT2911	Washed screen with normal audio and very weak image behind the gray screen	Change memory l16		samuel leite
GRADIENTE	GBT2911	No stand by, normal voltages. does not turn on	Change the 20,250 crystal	20.250	Eletrônica Nel
GRADIENTE	TV-2922/GBT2911...	Dark screen with retrace lines and background image	Broken transistor q830		Jhonye de Krapicuiba
GRADIENTE	GBT2911	Turns on and off; with no video and sound, the chroma ic appears to be shorted	Dz 401 zener diode 22 v com flake		MACCELETRONICA
GRADIENTE	TV2922 2924 2953 GBT2911	Dark image you increase the screen of the retrace line	R831	R831	thiago
GRADIENTE	GBT2911	Nothing works	100n short capacitor c13 located on pin 46 of the micro controller	Appears to be the micronas shorted	MACCELETRONICA
GRADIENTE	GBT2911	Trapeze	It's typical of a shorted yoke, it wasn't the case. After some measurements I decided to replace the ic 301 stv 9325, vertical output. the image opened but continued with the washed screen and colored bands. after other measurements and many coffees I decided to replace the ic 301 with another one, new too, but purchased from another store. problem solved. New part is also suspicious!		paulorusso
GRADIENTE	GBT2911	Turns off after 20 minutes, then keeps turning off again and again.	Capacitor c805 10ufx160v.	Changing the capacitor, give preference to the 10μF 250v capacitor as it has greater heat dissipation, meaning it has a longer useful life.	WAGGUINHO