PL51F4000 TV Repair: Common Faults and Solutions.
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Results: 18
Results: 18
PL51F4000 Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG | PL51F4000 | STB LED connect, sometimes flashing 2 times | Does not armed power supplys of power | Even landing the PS_on pin, the coupling option that armed the PFC feed and power power supply was not fed, then I found the SMD SOT-23 transistor that opens it, was just replace and he started to feed the option. | Davi.sls |
| SAMSUNG | PL51F4000 | Fully | TV was with both fets QS802C and QS801C: MDF9N50. It replaces the two with 12N65C and the two exploded at the time by burning the resistors and SMD diodes at the bottom of the plate, even after their TV was replace the TV and oscillating the 15V. Measuring once again I came to the conclusion that CI ICS801 was defective. Trading everything solved. | Defective components/ check before replacing the transistors: DS821 and DS820 (A4W39) RS804 and RS806 (20R), RS808 and RS809 (10k), DS804 and DS805 (KL3) and CI ICS801 UCC25600 | Pedro Igor - Eletrônica Portugal |
| SAMSUNG | PL51F4000AG BN44-00599A P51HF | Normal power on does not generate video, slight blinking | Defect on the power supply board, mosfet transistor qx854 partially shorted | Test before ysus plate, plate | Eletrônica Sorriso Maike |
| SAMSUNG | PL51F4000 | Restarting | 3v3 processor power changed to 3v5. | Remove r817 and put a jumper in place, reducing the output voltage to 3.17v. | Valdecir Schena |
| SAMSUNG | PL51F4000 | Standby flashes 3x and does not turn on. | Short power supply. | Burned out smd components making reference impossible. with scrap board follow the references: ds821 smd(a4w39), smd rs809(103)10k, smd rs806(200)20r and on the top mosfet qs801c, qs802c (both mdf9n50). Jammer required on broken trails in this case of course* | |
| SAMSUNG | PL51F4000 | Grainy image | After changing the smd transistors rjp30h1 (2) the image became grainy. Cause, the transits were fake, bought from ml. I took them from an old board and it was a mess | The fgpf4536 smd also burn out when the rjp 30h1 is shorted | Cabeça |
| SAMSUNG | PL51F4000 | Dead sign board | Diodo zener do +b 3,3v em curto | Replace zener d901 prox power supply connector | edmilsompimentel |
| SAMSUNG | PL51F4000 | Sometimes it called, sometimes it took a long time to call | 3v3 that feeds the eprom with 4v5v, right, it would be 3.3v | Replace the regulator IC on the IC806 signal PCI. | edmilsompimentel |
| SAMSUNG | PL51F4000AG | Stretched image | Signal board replacement | Replace the position of the zr 869 fhd to r860hd or vice versa | paulo rps |
| SAMSUNG | PL51F4000 | It doesn't turn on, it only has pson voltage 5v | In my case tsound was only 5v voltage pson grounding no voltage appeared tsound was no 5v, 15v, go, vs | Replace qq806, 807(std5915) resolved | speedtec |
| SAMSUNG | PL51F4000 ORESTS | Does not light up backlit | Power supply change | Alextecnico | |
| SAMSUNG | PL43F4000AG PL51F4000AG | Sometimes it turned on sound and image: and sometimes it just stayed on stand-by | Protection triggered | Remove the two transistors from the pci f type (bc) that provides protection and that's it | Airton Filgueira |
| SAMSUNG | PL51F4000 | LED does not turn on, blinking 3 times | Ic801 com 4,7v no pino 8 | Transistor connected to c802 with leakage (it is close to the power supply connector) | Portal tec letronica junior cat |
| SAMSUNG | PL51F4000 | Sometimes it turns on, sometimes it gives no signal, sometimes it turns off out of nowsound and stays dead for a while | 3v3 from eeprom failing | 3v3 regulator failing, ic806, I adapted another larger one, from the 1117 smd series with wires | davi.sls |
| SAMSUNG | PL51F4000 | Tsound is no image, the LED is blinking | In my case c5072 102 1kv those blue ones on the ysus board in short, be very careful with them, just look carefully and you will see it with a hole or crack | Replace c5072 or those blue ones that have a hole or crack | beto2828 |
| SAMSUNG | PL51F4000 | Doesn't start. flashing standby led | I replaced the 30m40 igbts on the y sus board. all shorted. | Rmseletronica | |
| SAMSUNG | PL51F4000 | Screen off | At first the defect was on the main board and after I changed the memory the screen came on and the image returned, but when I turned it back on again the defect had returned, I changed the y and the power supply and nothing, I changed the main one and nothing. | Replace or rewrite the eprom of the s24c32 memory screen drive board and I couldn't find anyone who sells this memory and I had to remove it from a board of the same model that had a broken display. | marco.32 |
| SAMSUNG | PL51F4000 | TV turned on and off | I discovered that the problem got worse when the TV got hot or turned on for a long period of time. which led to the suspicion of some component varying with heat. That was when I discovered, close to IC 1501, the capacitor in position 1024 of 10uf that changed depending on the heat applied to it. I checked the conclusion using a capacitor and a soldering iron. | The capacitor is responsible for filtering the voltage on the ic1501. I placed a common 10μFx25v capacitor and it solved the problem. | Edinei |