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Results: 88087
Results: 88087
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILCO |
PTV43E60SN
|
The LEDs don't light up | The LED power supply was 63v, but the page up folder did not activate, I added a 150k resistor in series with a polyester capacitor (taken from v-com) or it could be 1mf, between pins 1 (+12v) and pin 14 (black light adjustment) of the ci mps1706 mp4010. it worked normally. | mpaulo | |
| SEMP |
32HL86
|
Strong hiss, and lower audio on one of the channels | As for the hissing, it was the 1micro capacitor c629 with half the capacity and as for the lower volume, 10micro capacitors cg06 and cg07, both with very low capacity | Replace the mentioned capacitors | <small> |
| LG |
29LN300B
|
TV turns on, the image appears and then the screen goes off, with the LEDs and screen good | Broken track on pfc circuit | Carlos | |
| LG |
29LN300B
|
TV turns on, the image appears and then the screen goes off, with the LEDs and screen good | Electrolytic capacitors c111 c110 c117 c118 replace without measuring | Carlos | |
| PHILCO |
PH40B28DSGW
|
TV blinks the LEDs 1x and turns off | LEDs were good, I found an SR3100 diode that is located in (d970 next to the capacitor next to the LED plug) it was shorted, I replaced it with a 5100 which was different, it can handle up to 5A and the original up to 3A, it was good, the TV came back turning on LEDs | WILLIAM JONER VIAMÃO RS | |
| TOSHIBA |
MS-7980
|
It turns on all the functions but tsound is no sound even in the headphones | Str-w6759 | If you can't buy it, it can be solved by placing a 470k resistor between the strw pins on pins 03 and 04 and then | eletronica publisom rn natal rgn |
| SAMSUNG |
UN65HU8700GXZD
|
No image and no functions on the screen (menu) | Tsound is no 13v voltage that powers the t-con, due to the shorted capacitor c174, it is in the audio amplifier circuit. | Moura1 | |
| LG |
50PN4500
|
TV without image, normal audio. | Following the tip of r201 next to driver 201 I noticed the resistor was in good condition but a winding of the driver transformer was corroded by the transformer glue. | Remove the glue and rewire the t201 driver. | Afonso |
| TOSHIBA |
40L2600
|
LED current reduction | Change 12k r314 put 33k | AMIGO DA ELETRONICA | |
| PHILIPS |
20PT3336/78
|
When energized, the device simply gave a quick pulse to the power supply's secondary and turned off, keeping the primary capacitor (2503) with a residual charge. | Transistor (7540) smd, leaky. | Replace, (7540) (abs edfesom;) | EDFESOM |
| LG |
50PJ250
|
When turning on the TV, the relay would hit and disarm, leaving it only on stand by. | Repeat the same procedure as pj 42 250, join jumper 53 with 73, after this procedure the TV worked perfectly | Eletrônica Power saquaçú Henrique | |
| LG |
43LJ5550
|
Flickering or shaking image | Short on screen pixels, to avoid losing the display, disconnect the flat on one side, turn it on and tighten the flat, if the image appears, remove the tracks from the flat. | Tsound will be an image defect but you will be able to use the TV for a long time. | ST ELETRÔNICA |
| PHILCO |
PH650
|
N liga. so em stby | D11, d12 or d13. If in doubt, replace without measuring (in4001) | Israel Portela | |
| PHILCO |
PH27D28D LED
|
Connects with image and without audio | Check the amplifier's 12v supply | Resolder the following: u700, r728,729 note: smd!! resolved. | Medeiros/ Barbacena MG |
| AOC |
LE50U7970
|
Curtain effect, shutter, in the image. | Faulty display | Le50u7970 image curtain effect / shutter effect, the colorful vertical stripes that move across the screen. on the vcon board on the right side tsound is r075 which was exploded and on the left side tsound is r086 which was smoking. It is a 40v power supply that goes to the screen for polarization, I took a risk with low values and on the left side it smoked and on the right side it didn't after using 240r I went to 460r, I went to 1k and what really worked was 10k, but you can see in the image a very soft type of interference that is almost imperceptible, only those who understand know that it is a screen failure... I ran for a hug ...I saved the TV | MIGUELTV |
| SEMP |
L32S3900S
|
Has very weak blue image sound | Led | ||
| LG |
VARIOS
|
Don't know the password | Unlock password | 1st setting key, go to lock from the LCD menu. Click the mute button 3 times, enter 129472 and enter a new code. | Paulo Costa |
| SAMSUNG |
UN40F5200AG
|
The backlight keeps flashing and doesn't turn on. | 5v stable, 13v oscillating between 8v ~10v. defect in a smd rs802/10r resistor (close to the ics801cs) its value was altered, it measured more than 100r, thus changing the voltage from 15v on one side to less than 7v on the other, just change it for a 10r and the defect resolved! | EC | |
| PANASONIC |
TC-14A12
|
Power supply floating and turns off | Power supply coupler d807 | Replace of the same | ELETRONICA SALES.NATAL RN |
| PHILCO |
PH21MSS
|
It doesn't turn on, I press the power button to turn it on, it makes a noise like it's flyback and the 115v appears and drops, and it doesn't turn on | Replace diode d404 fr104, next to the horizontal transistor. and ch,c412, 391 | DJ PITUKA |