Hi guys got an LG 50PH660V Plasma Tv here when plugged in it just starts clicking like hell... i have unplugged boards going to the psu appart from the mainboard. the PSU is EAX64906001 Rev 1.1 but i cant find any info online about these tvs with any common faults.. i will test voltages if i get any and will post results but has anyone had any dealings with this tv or the PSU ?
-
-
Re: LG 50PH660V Clicking
ok tried to test voltages, i was getting numbers just bouncing up and down as it clicks on and off every second so cant test voltages, after i unplugged tv it continued to click alot slower for 20 seconds or so. what can i do to test further ? -
Re: LG 50PH660V Clicking
Pictures ??Comment
-
Re: LG 50PH660V Clicking
hope these help.Attached Filesif you find these attachements useful please consider making a small donation to the site
Comment
-
-
Re: LG 50PH660V Clicking
With sustian boards unpluged does it still click like mad ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
-
Re: LG 50PH660V Clicking
yeah mate as pictured i disconnected those boards and it still goes mental.Comment
-
Re: LG 50PH660V Clicking
Have you started taking voltages ? Check the Vs and Va also check the lower voltage rails going to the Mainboard they will be listed what pin should have what voltage in a little chart near the connector. Let us know what you find.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
-
Re: LG 50PH660V Clicking
will i be able to test the voltages though with the PSU not staying on or even giving me long enough to read them ?Comment
-
Hello
I have power adaptor(220V/input, 12V 1.2A/output) which has symptom of fluctuating output DC voltage between 11.5V-12.2V.
So I opened its plastic case and when switched it on, I heard constant tik tik sound from inside its PCB.
I measured DC voltage between negative and positive pin of the largest capacitor(400v 10uf) and it was measured contant 300V.
I also measured ESR value of all capacitors and I noticed that one of capacitor(KMG 16v 470uf), which located in the secondary side, have high ESR value(10 ohm),So I replaced it with same specification NXH capacitor.... -
Hello
I have a big problem and that is that in some cases when repairing active pfc power supplies I cannot work with a test lamp. I can only get help with 5 volts standby and for starting and starting I have to work without a lamp and this way there is a possibility of parts exploding and other parts being added.
Sometimes with a multimeter test the problems can be reduced to some extent, but I had several cases that had to be tested on and online and recently two varistors exploded. They had terrible resistance because the power supplies were over 800 watts.
Is there a way... -
Hello.
GPU came in, green lines. Spent lots of time using to get the Mats / mods drive working (found on youtube).
Found issue with a RAM block
Replaced, green lines gone.
Trying to test again, assuming getting the false positive. Originally had over 1K on a single bank. Now getting tosses low between banks.
Used a good card to test and same results low errors 32+.
I am just search for some form of command to do a full test on the GPU.
I just ran the mats command with my good GPU and passed after roughly 40 min.
The repaired one, ran... -
PSU - BN44-00878A
Symptoms:
The TV turned itself off, and I haven't been able to turn it back on. The standby voltage was unstable and lower than it should be.
A weak clicking sound was coming from the transformer.
Video with clicking sound:https://www.youtube.com/watch?v=lAduhjNtqCA
Progress:
After the transformer, I measured four Schottky diodes. DM862C and DM864C diodes readings were 003 in both directions. After detaching them from the circuit and measuring them, DM864C was the shorted one. These Schottky diodes are SB550.I... -
Hello Guys,
Greetings!
Hope you all are doing well.
I am looking for suggestion on Yamaha 2064. The problem with this receiver is that it has no sound however when the test tones are activated it does outputs from all the speakers. It is working in two channel stereo mode but when you select other sound modes, it doesn't. The last time it had a problem, I had replaced the DAC
PCM1681DBQR - IC263 and it worked fine.
Other issue with it is one of the STK ICs is getting more heated then the other one but that can be looked at later.
...
Comment