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Results: 88166
Results: 88166
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG |
LT22A550, LT24A550, LT27A50
|
Does not turn on or come on standby | IC 202, 5 pins, inputs 5v and outputs 3v3. | joaomvjr | |
| LG |
21FU4RL
CW 81A |
Flyback noise and out-of-sync image | Capacitor c412 | 3R | |
| PHILCO |
TV PH21 US A1
|
With rainbow effect image | It appears to be on the vertical outlet but it wasn't | It was the glue on the VD564 diode, remove the glue and clean it and the image returned to normal | Gilson Eletrônica Paulistana-pi |
| AOC |
LE22H037
|
Doesn't start. (only turns on if the board heats up) | Regulator u708 1.8v (g108418) defective. | Replace regulator. | I.G |
| TOSHIBA |
2999
LEM6 |
No video on the av and if you deactivated the blue screen it would turn white | The defect was the micro | Replace microprocessor, if your micro is 8859crng5jf2 you can put the 8859crn5jf2 | Bardock Eletrônoca |
| SEMP |
2134(B)SL
|
Vertical closed with image only from the middle upwards, and with retraction lines. | Capacitor c318 and c319 470nf/25v changed. also change c310 4.7nf/50v | Replace c318 c319 e c310 | MARCONES DE ARARIPINA-PE |
| SANYO |
CTP-3781P
|
Tsound is no sound. | Open speaker. | Speaker replacement. resolved. | Turbinex |
| SEMP |
U18
|
Missing the red | Clear | Gabaglio | |
| SONY |
KDL-40S4000
|
No image | No image and no OSD, main board: 603n4007-02r, backlight works. fuse fp1 3a blown in t-con. | Replace capacitor c14 (10mf) | Márcio |
| SAMSUNG |
CL29K40MQ
AA41 |
Sound turns on and off, vertical good correct voltages but turns off immediately, without h-sync voltage | 4k7 resistor r305 open... the person changes the deflector capacitor, changes the micro memory and nothing solves it... etc.. | Changing the open resistor r305 4k7 or diode 1n4148 that goes with it is to see that tsound is this diode together with the resistor. | tvcell |
| SONY |
MHC-8EXBR
|
Turns on and off for no apparent reason. | Change without measuring the diode on the d400 1n4002 panel. | Marcos | |
| SEMP TOSHIBA |
TV2999
|
Annoying noise at the power supply | Swap c819 and c879 | Persio (TVCompany) | |
| SONY |
MHC-EX6BR
|
Protect | Didos na power supply 1n4007 (d015,d016) | Replace without measuring as they alter its conductivity | rubertan eletr silva joao monlevade |
| TOSHIBA |
MS7845MU
|
When activating the power, the device goes into protection. | Fets q801 and q802 shorted, and resistor hr815 changed. | Replace fets and remove the replaced resistor. | I.G |
| PHILIPS |
40PFG4109
|
Lamps on, no image, stand-by blinks when the remote is activated | CD 7 (screen board) broken and shorted | HP ELETRONICA | |
| TOSHIBA |
48L2400
|
Turns on and then turns off. (note: this device is a return because I had already changed the LED bar three months ago) | After checking a lot and finding nothing, I found this tip (I don't remember the author) to replace the smd resistor r766 (5k1) with 6k8. | This resistor is behind the flat. (This tip also works for the Philco ph48s61dg. They are identical boards.) | Eletrônica R-Tec |
| SONY |
MHC-GTR888 HCD-GTR888
|
Turns on in a few seconds appears on the display protect | I opened the device and found 8 electrolytic capacitors bulging on top, I removed them to test, all depleting the value 3300uf 71v, replacing them with 3300uf 75v, and I also tested all the irf6775 and irs2092s, all good, already on the irs2092s on pin 12 - of each one of this circuit to an open resistor, r4605, r4604, r4603 and r4602 - 100=10r smd, but ci 4900 = njm2903v shorted, but regulators kia7805 and kia7905 with leakage change without measuring and very close to these regulators two transistors with leakage q4012 and q4003 = ktc1027-y | I replaced all these components, the sound was 100% working, it had auto volume under test, the defect was resolved | Andre |
| SONY |
MHC-GTR888 HCD-GTR888
|
This sound arrived at my workshop with the following defect, it does not turn on, the front panel is off, the stand by LED is off | The cause was a short on the power supply and audio output board, I found some components shorted and leaking, they are - pc701, pc702, pc704, pc301 and pc302 - nec2561a with shorts and leaks, q325 and q202 - kta1281-y with leak, d403 - 6v8 changed, r230 and r231 - 390k smd bad, r233 and r232 - 470k smd - changed z201 - sc2001 - with leak replace with original, already on the audio board - q4065 and q4068 - code yw = 2sa2026 - short and leak remove scrap not sold, r4400, r4401, r4407 and r4406 - 100r open smd, r4068 - 2k2 smd with low capacitance, q4004 - kta1023-y shorted, d4001 - 10v smd shorted ic4400 - 4580r smd shorted c4012 - 22uf 63v burst | Defect resolved | Andrei |
| SEMP |
2934
|
Red with traces | In some cases the screen capacitor on the tube plate (102k capacitor) can be replaced by a 104. | Francisco | |
| SEMP |
TV2934
SK-9 |
Does not connect noise at the power supply | 16 volt line diode d306 altered | D306 replace | jean alves |