Rca Repair Tips

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Results: 71

Make	Model	Symptom	Problem	Solution	By
VáRIAS MARCAS	LUMINáRIA DE EMERGêNCIA GENéRICO	Lights up a little even with power from the socket	Depleted capacitor on the input part of the charger (450v?)	You can measure the voltage on the capacitor if it is below the rectified value (155vdc for 110vac, vac*1.41) it may be exhausted. If you are going to measure the capacitance, discharge it first.	R
VáRIAS MARCAS	CT-CID803 BLOQUEADOR DE CHAMADAS CALL BLOCKER LD-803CIDALCD	Tip 2: don't care; display remains without anything appearing; telephone line has 48vdc. If you put 3.3v on the 470uf capacitor and it doesn't oscillate after a few seconds, nothing appears on the display.	Bad crystal smd capacitor (tube crystal 32.768 hz)	Oscillates after a few seconds when you place the oscilloscope probe. I put a 33pf capacitor and it worked, as pf is difficult to test, maybe it will work with other values (15 to 47pf?). If you move the crystal, add a little silicone glue to fix it. preferably use a low temperature soldering station (300°c?)	R
VáRIAS MARCAS	CT-CID803 BLOQUEADOR DE CHAMADAS CALL BLOCKER LD-803CIDALCD	Does not turn on; display remains without anything appearing; telephone line has 48vdc.	Crystal (x2) I put a 32768hz one and it worked. This board has an hm9270d ci, this ci is not directly energized, in the cap. elect. of 47uf (e1) is about 0v at rest.	Check if tsound is around 3.1v in the cap. elect. of 470μF (e1) check with an oscilloscope, if it has around 1.5v and doesn't oscillate it could be the x2 crystal, if you don't have a tool, try changing the crystal, it should work as a wall clock	R
RCA	RBA1420	Turn on menu button does not work	Adult channel blocking	Find the control and go to option 5 and disable the lock, menu only works with the control, using a universal control, some of the codes that work for the rca tv 10047, 11047, 11347, 11447	Arthur R.
RCA	L37WD22 L37WD250 L42WD22 L42WD250 L46WD22 L46WD250	No analog channels, distorted or lost audio, digital channels still present.	On pcb main board, fuse 1c33 open.		Aaron
RCA	RBA2020	TV with LED flashing quickly	Rl11 resistor at the foot of the horizontal transistor 4r7 replace the same		MARCIORVGO
MULTIMARCA	VARIOS PT90	Image with dragging	Open 2m2 ry24 resistance		Divercentro
MULTIMARCA	VARIOS PT90	The power supply tries to start but does not start	Capacitor cd03 shorted 2n2 (may have another value depending on the brand)		Divercentro
MULTIMARCA	11AK30A11 11AK30A11	Does not start	Line transformer, q603 bu808dfi, place on chassis c645 100uf25v	Tsound are brands that do not have c645 installed	Divercentro
RCA	RBA2020		Epron		Eletronica Bianca Ipirá BA
MULTIMARCA	11AK30A14 11AK30A14	How to enter service mode	With command, menu and type 4,7,2,5		Electrohd
QUALQUER MARCA	MICROONDAS	Everything seems to be normal, the fan works and tsound is even a noise from the tractor and the front panel is normal	But it doesn't heat up	Magnetron truck	odobaldo pregidio
QUALQUER MARCA	MICROONDAS	Shorted oven, burning fuse could be a shorted capacitor because when it's the transformer it's easy to see	Replace capacitor and diode		odobaldo pregidio
QUALQUER MARCA	MICROONDAS	The panel works normally but it doesn't heat up, it doesn't make any noise nor does the fan work	Check the door micros or whether the door is closing properly or the charaque is burnt out		odobaldo pregidio
RCA	RBA2020	Does not enter the menu screen	Eeprom memory 24c04	After programming a new memory and changing it, the TV started to work normally. You can find the eeprom program at www.eletronica geral.com	edrod
RCA	RBA 2020	Does not change channels, eeprom stuck	Change the eeprom ok...	Some computers automatically load data from the eeprom, if you are not familiar with data or bits, just know that they are monitored by cup (power supply voltage indication) xpr, x-ray protection, evg, vertical protection enablement ndf - output vertical protection,bcf-pret current failure	Miltom
RCA	RBA 29551	Does not oscillate, then no image	After changing the power supply control, the TV turned on + no image	Enlarge the screen on the fly and adjust the brightness and contrast levels through the menu, then normalize the screen	Adrian Chapadão
MULTI MARCAS	PT92 PT92	In vhf it had two return lines at the top; superimposed on the image.	This defect arose after the mat leakage fault was resolved.	Reprogram the memory, with corrupted data.	jose luis calcada
AP.CHOQUE DE CERCA	NELLORE 140KM/220V	Doesn't hit	Ap.burned by electrical discharge / diode sk1/16	Replace diode and redo board tracks	eletronicaapolo
AP.CHOQUE DE CERCA	NELLORE 150KM/220V	Doesn't hit	Electrical discharge / rectifier diode fuse holder.	Replace mentioned items	eletronicaapolo