Rca TV Repair: Common Faults and Solutions.
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Results: 71
Results: 71
Rca Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed 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 |