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Results: 87709
Results: 87709
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
KDL40EX455
|
When the TV turns on, the green LED lights up, then returns to the red standby LED and flashes twice | Zener diode zd9101(15 volts) with leakage, killing 12 volt and 24 volt voltages | Replace the zd9101 zener diode (15 volts) with a new one, the TV started working again, returning voltages to 12 and 24 volts. | Glaucio Geann |
| SAMSUNG |
LN32D403E2G
|
LED blinks, makes it turn on but doesn't turn on. | Capacitor 1113 on the main board near the memory (remove) | If I helped, if you can send a pix (79)98842-5366 | Luciano (Amplitec) |
| AOC |
LE32M1475
|
Restarting | Let's talk to you | Replace of the same | Eletrônica Alaneletron |
| SAMSUNG |
LE23R81B
|
Does not start | Stand-by LED active, but does not start | Rm814 - 3.3k 1w + dzm802 - bzx84c27 | RMELECTRONICA |
| SAMSUNG |
UN40H6400AG
|
TV turns on but the backlight flashes or then goes out, the backlight does not remain on even if disconnected from the main PCI, in this model the normal thing is for the backlight to turn on as soon as the power supply is disconnected from the main | After excluding the possibility of a defect in the LED bus, check the voltage at the point in common between the components d9802, d9801 and q9802, a voltage well below 1.6 causes the backlight to trip, in the tests sound q9802 was removed from the circuit with this, the voltage returned to around 3v at this common point of the 3 components, this with the PCI disconnected from the main | Left without the q9802 | Direto no defeito |
| AOC |
LE42H158I
|
Sometimes there is no way to turn on, but sometimes it does. | Regulator 2.5 u708 sometimes nothing happens | Replace u708 reg 2.5 | Rodrigo cofferi |
| LG |
42LD6550
|
Does not turn on, blinking on standby without backlight | Replace r519 | ELETRONICA JAMBEIRO | |
| TCL |
65P735
|
No image | It looked like a burnt out LED bar | Shorted diode on the board that rectifies the LED current (just replace it with another equivalent) | reginaldo moronte,eletronica junior caldas novas |
| SAMSUNG |
UN39EH5003
|
Doesn't work | Defective +5v integrated circuit | Measuring the voltage at the remote control sensor socket it was 2.8v. Following the trail of this voltage I reached the defective IC202 integrated. | ELETROFEPAR |
| LG |
32LJ600B
|
No image, LEDs on, but no video. | Sem 12 volts no cabo lvds that feeds the t-con. | C621 shorted, close to l601 | LABOTRON |
| BUSTER |
HBTV-32L05
|
Does not turn on, standby on, sometimes turns on normally | 1.8v regulator u807, change it even with 1.8v | Replace reg 11718 u807 and c815 | LOOPTEL ELETRONICA NADRONE |
| PHILCO |
PH42M61DSG
|
Dead, no standby | After a good amount of analysis, I replaced ci fr9889 in positions n801 and n802 | Claudio Jorge Eckert Junior | |
| PHILCO |
PH29E63D
|
Plug it into the socket and it goes straight from the red LED to green and doesn't do anything else | Regulator u8 1117 cdefective can be changed even if it gives 1.5v and it turns back on | Replace u8 1117 1.5v regulator and it works even if it gives 1.5v replace | Beto2828 |
| SEMP TOSHIBA |
DL3244
|
No audio after a few minutes but with audio at the headphone output | Put a 220r resistor on r21 wsound it is without, close to the output | Put a 220r resistor on r$21 wsound it is without, close to the output | Rodrigo cofferi |
| LG |
RP-14CB20A
|
Turns on standby, presses power, LED turns off TV, won't turn on | Capacitor c826 470/16 | Capacitor replaced | ELETRONICA KLEIN |
| DIGIPRO 1000 - SUB 18D |
DB TECHNOLOGIES
|
Low output power, or protection acting before indicating clip, restarting (actuating mute) | The amplifier design is only 8Ω, you cannot connect speakers with less than that in bridge mode. for 4Ω you have to connect to just 1 channel without being bridged, with less than 500w each separate channel. If you connect 8Ω to each separate channel, it gives less power than 4Ω as well. If you connect 4Ω in bridge mode, the protection of the irs20957s IC (pin 2 - csd) activates, which may cause the irfb23n20d outputs to burn. | ||
| DIGIPRO 1000 - SUB 18D |
DB TECHNOLOGIES
|
Burning output or triggering protection before indicating clip, restarting (actuating mute) | Irs20957s control ci sends protection signal (pin 2 - csd) to pic16f883. | Outputs are not original, tired, or incorrect limit resistors (original: irfb23n20, if it's not like that, it heats up the heatsink more, you also have to recalculate the current limit resistors, or the output becomes weak/burns), limit resistors Original currents are 1k8 (pins 6-7; 13-16) and 8k2 (pins 7-9; 16-d2/d6), see diagram. | R |
| PHILIPS |
40PFG6309/78
|
Blue screen, no image but sound | 10mfd smd capacitor close to the flat on the right side of the t-com shorted. I replaced it and it started working again without much cost to the customer. Note: it killed all voltages, tsound was only 12 volts coming from the PCI. good luck... | Xoke bazar | |
| LG |
24TL520V-PZ.AEUQLUP
|
Does not turn on. Short on 19v input on man pcb | Smd capacitor position no. c1002 shorted | Celio Lemso | |
| LG |
29MN33D
L31 |
Out of tune | Voltage changed in cis ic803 of 3.3v and ic 805 of 1.8v. | After analyzing and even replacing the 3.3v and 1.8v cis regulators. responsible for the polarization of the seletronic, analyzing the circuit I saw that the IC800 DC/DC regulator from 19 to 5V was defective. Replace and re-tune. everything goes back to normal | ELETRONICA ESTUDIER-OLIBIO |