Search:
Results: 87305
Results: 87305
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
42LB9RTB
|
Picture failure | 6870c0119a can be placed 6870c0170b | Despite the size difference, the functions of the two boards are the same. | orlando lott |
| SAMSUNG |
UN40ES6150 BN44-00502A
BN44-00502A |
TV turns on, off and stays on stand-by | Check on psu (bn44-00502a) dm855. | Replace diode and check for cold solders | José Félix |
| PHILCO |
TP2054
|
TV with super expanded image, replaced wide capacitor, but defect persisted, it also contained a vertical, transparent list, the thickness of an index finger on the right end, the globe symbol only appeared as a dot due to the expanded image | All voltages ok, after a lot of analysis, I based it on the schematic, I saw that tsound was an SMD capacitor on the c722 position board, tsound wasn't one on the schematic, so I removed it, and I hugged it, thank God, good luck .. | Otacilio | |
| LG |
32SL3400
|
Restarting | Capacitor da power supply d 1500 mg /10 volts low capacitance | C201 capacitor replaced | RCs eletrônica |
| LG |
43UM7510
|
Reduced LED current | Retirar r801, r815. r818. r824 | Decreased by 10 volts. I'm not sure it's correct, but I didn't find any tips. | Eletrônica Cecé, Brumadinho MG |
| LG |
22EA53T-P
|
Monitor - lg - flatron 22ea53t-p with the following defect, blinking on and off and when it manages to turn on, the screen saver starts blinking again | Capacitor in power supply 680uf x 25v | Replace capacitor 680μF x 25v on power supply or power supply board | Roberto Freire |
| SEMP |
TV 1030
U17 ACDC |
LED lights up, has sound, no image. | D302 broken, I got another one from scrap, it's close to the flyback | Alexandre | |
| PHILCO |
PTV58F60
|
Does not turn on the LEDs | Changing the photocoupler, changing them all | CLEBER LIMA RS | |
| ONEAL |
OLA2600
|
Constant noise and a lot of auto in the driver | Ci u9 ne5532 defective pre operational amplifier. | Replacing the ci with a tl072 | JHONES MARQUES |
| LG |
CM4440 CM4450 CM4640
|
Mute and/or s-protect | Pvdd power supply missing | Check the q901 and d951, replace the zd912 (20v) in the power supply primary | Baguatech |
| PHILCO |
TV PH39N91DSGWA LED
|
Inoperative, stand-by LED off, voltage of 12v and 5v present on the secondary. | Cw908 and cw922 blown and u4 (1117 adj) changed. | Eletrônica Barbato | |
| PHILCO |
PH55X57DAG
|
Calls and writes philco and erases the philco logo and nothing else works, neither the remote nor the keyboard. | In my case I updated via pen drive and it accepted the update, tsound was that blue screen of updating up to 100% but it stayed the same. I noticed that sometimes after the logo was erased, tsound would be interference vertically and sometimes it didn't happen at all. I suspected the data clock line, but before seeing that, I remembered the reset and when I changed the capacitor c536 on the underside of the board the equipment started working again, as tsound is the reset circuit, I also resoldered it and cleaned it afterwards. So how did you solve it and I believe that in my case it was that. | Check reset circuit c556, n515, both underside of the board. Because as we know, the Philco logo is in the room and not in the firmware, which is why the update did not solve the problem. somehow after the logo occurred, the equipment would have to start reading the firmware memory and it didn't happen, so I thought about data clock, but maybe the reset somehow didn't happen perfectly and this prevented the correct initialization or command lines of memory. | MIGUELTV |
| SONY |
HCD-GT3D
|
Cutting only the voice boxes, sub playing normally | Ic914 | Replace the same one, underside main board | BARBADINHA |
| LG |
21FX5
|
No audio and video in av | Resistor r761 1k open | Replace 1k resistor R761 | Raimundo Tec |
| SONY |
KDL-50W705A
RB1G |
Flashing standby led 8 times | The service manual states that it is a software defect, but in my unit, it was a shorted capacitor on the top of the main board, close to the ic2408, next to the varicap. | The capacitor was replaced, the TV turned on again, but the display was also defective, a shame. | Eletrônica ATM |
| SONY |
KDL-50W705A
RB1G |
Flashing standby led 8 times | The service manual states that it is a software defect, but in my unit, it was a shorted capacitor on the top of the main board, close to the ic2408, next to the varicap. | The IC was replaced, the TV turned back on, but the display was also faulty, a shame. | Eletrônica ATM |
| SONY |
KDL-32BX425
|
TV does not turn on, standby LED blinks twice. | Shorted inverter board mosfets | I replaced the mosfets with new ones from a donor board. | Adam Kevin |
| H-BUSTER |
HBTV-32D03HD
|
No voltages in the secondary | D912 change without measuring | Eletrônica Cecé, Brumadinho MG | |
| LG |
32LV5500
|
TV doesn't turn on, no stand by, LED doesn't light up, no 3.5v | Power supply board, IC501 pin 7 oscillating between 10v and 12v, no 3.5v voltage, RL101 inoperative, D201 shorted | Replace d201 (sb560) | Wellington Uemura |
| H BUSTER |
HBTV-32D05HD
|
Flashing blue stand-by light, power supply pulsing 5v | Open d31f that powers the primary ci driver. | Replace it with a 1n4007, pay attention to the fact that on the cathode side (white band) tsound is a ferrite ring underneath the glue. | Eletrônica Barbato |