Repair Tips
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Results: 88026
Results: 88026
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SEMP |
2123 (0)
U19 |
It didn't give anything | It was a street 5453 | Resolved | Antonio |
| AIWA |
NSX-S229
|
When you press the button to turn on the display turns off and does not turn on. | Check r223, r224, r249 and r250. Possibly, one of them may be open, due to some problem with the audio output. | MARCONES DE ARARIPINA-PE | |
| AIWA |
NSX-S229
|
Nothing turns on, display is off | Loosen resistor r244 and see if when plugged in, the display lights up. If it lights up, check the output transistors. | MARCONES DE ARARIPINA-PE | |
| PHILIPS |
NTRX500 NTRX700 NX5
|
Turns on, reads, but completely without sound | Polarization of the "mode" pins of the output ics at a low level, wsound tsound should be 5 to 7 volts, activating the mute or stand by of the ics | The polarization voltage comes from the +12v voltage, it is reduced by a resistor and smd zener, in this case the zener was replaced, as well as the ceramic capacitor that is parallel to it, and the voltage rose. | Davi.sls |
| LG |
32LK450
|
It turns on immediately and turns off or restarts, blacklight flashing as if tsound were bad bulbs. | Several cold welds were redone and the defect continued. | Replace capacitors in the power supply c510 and c509. | Hilário Luis Sperling |
| PHILCO |
PH21SS
|
1000uf 16 or 1000uf 25v electrolytic capacitor position c564 | Naldo Eletrônica Lajes RN | ||
| PHILIPS |
32PFL5606D/78
|
Does not turn on, 3.3v voltage present and the rest disabled | Tl431 (u102) regulator replacement | Tsound was no voltage on pin 12 of u501 | EDILSON |
| LG |
22MA33D-PS
|
TV inoperative, nothing turned on! | Smd 716 capacitor, close to the speaker connector, shorted...after it was removed, the TV worked...replaced it with another | Williansbill | |
| SEMP |
LE4057L(C)
|
Backlight does not turn on | Defect in chip n701 (ocp8122a) that releases the pulse for transistor v9 and v10 that controls brightness | Just replace the n701 chip (ocp8122a) | ELETROSANTOS |
| TOSHIBA |
2159OFS U19
U19 |
TV completely inoperative. | Resistor r860 = 220k, it was open. It is located at the power supply close to the main capacitor. | I hope I helped my friends. | Bruno Rogério |
| LG |
14CB25
|
It came with a half-height vertical and did not memorize after updating the data | Rectifier diode d 22 and capacitor 100uf 10v c 40. on the EPROM side | JR Alagoinhas BA tec | |
| PHILIPS |
32PFL3606
|
Stop | Capacitor connected to pin 2 of the CID 7125 main board | Capacitor shorted, on fire! Just in case, replace the 2 smd capacitors | Rafael Sena |
| SAMSUNG |
CL21Z50Q
|
Does not turn on, LED is on. | 5v1 or 5v6 zener diodes on the 5v line of the memory, and the remote control sensor, shorted out. | Replace 5v1 or 5v6 zener diodes close to the remote control sensor, and on the 5v memory line. | MARCONES DE ARARIPINA -PE |
| PANASONIC |
TC-L39EM6B
|
TV without image, backlight ok | 12v is missing on the v com board. Defective main board. | Main board ic5421 reg rt7257cl defective. | RNSPTEC |
| SEMP |
LC3246WDA
|
TV without image, with sound, lamps on. | Short vcom card. | Shorted smd capacitor cd39, close to memory ux1. | RNSPTEC |
| PHILIPS |
43PFG5000
|
Voltage adjustment after changing LEDs | Remove resistors r8614, r8615 and r8616 | It drops from 29.83v to 28.03v | Paial.eletros |
| PANASONIC |
SA-AK25
XXX |
F61 | Introducing f61 | Capacitors showing leakage ESR 50v 2200μF, replace with 50v 3300 and the problem was resolved. Tsound are cases wsound it could be cold soldering on the fitting of the main plsca to the amplifier board, but in this case it was resolved due to the leakage of the wires. | Bruno trindade |
| SAMSUNG |
LE32B530
BN44-00261B |
No backlight, no voltage bending. it has 330v instead of 380v | Resistance r815 changed (more or less 1m instead of 2m) in the mesh of pin 1 of the 7530 fan | Replace r815 | |
| SAMSUNG |
PL43F4000AG
|
Black dots in the image as soon as it is activated and soon after when tsound is an image with some color changes | Position resistor r4063 shorted. It is located next to a diode, below the y-sus output connector. | Good luck! | Emanuel Aphiletron |
| PHILCO |
TP 1410
PCI 016A |
TV with dark screen without image with normal OSD. | Cap 717 | Remove cap 717 and the TV returns to normal.... | Eletrônica Evolução |