Question about Panasonic Televison & Video
From what I saw online is if the P2 connection on the power supply board gave 0 ohms that the power supply board was bad. At first it was ok by showing it had 1.5 ohms for 5 secs then it drops to 0, then it takes a few minutes before anything will show again but then it drops back to 0, is this a bad power supply board? Additionally if I go on to test the SC board with the power board disconnected from it and I get the same thing 1.4 ohms then it then drops to 0 and have to wait a few before it shows back again for 5 secs. Also the TPSC1 shows absolutely no ohms at all with testing su and sd disconnected at separate times as instructed in a video I watched. Would this be a bad SC board as well? Here is the link to the video I watched to try to repair this. https://www.youtube.com/watch?v=iHBIiRxhe0w Thank you
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Posted on Jan 02, 2017
Guys I had the same problem with the k599 Sciphone and none of the solutions found on the internet helped me. New chinese models tend to restart after testing is over and this results in turning the wifi application on. So I spent many hours on thinking how to bypass this function and this morning I woke up with an idea that really worked!! The steps are quite similar with the ones followed to debug older models:
put 2 chips on cell
1-enter in factory mode *#3646633#
2-go to RF Test Tool
3-choose GSM, confirm OK!
4-go to Power scan
5-Select Band DCS1800 click OK
6-the cell frozen
7-wait for 3 minutes testing
8-while testing connect to a pc using the USB cable (do NOT select ANY of the options appearing on the cell screen)
9-Click the CENTER button of the cell until you go back to principal menu
10-go to settings/network settings and choose GSM Preferred or any other option (except WLAN only!!)
In this way the cell does not reboot, and the wifi application stays off, so the option can now be changed...
Hope this helps!
Greetings from Greece!
email me to firstname.lastname@example.org if any questions
Posted on Sep 11, 2009
A common problem for these is bad capacitors in the power supply, Remove the back from your Tv and look at the power supply on the left hand side.
You will see roughly around 9 x capacitors that are bulged / domed shaped on top usually these are valued at 3300uf 10V any that have bulged or leaked a brown like substance should be changed.
This will cure the problem as they overheat being sat next to a heatsink that gets very hot!
Try and change them for the same 3300uf but a higher voltage.
Hope this helps
Posted on Oct 04, 2010
Last week I had seen exactly the same problem with my friend's tv(different brand though its a BRavia LCD). Could fix it by replacing a few capacitors on the power supply board. Cost me approximately 15$ for the 4 of them. If you are good at fixing stuff then you might wanna give it a shot. Have a look at the tops of the capacitors to see if you find any bulged or cracked ones. Replace any of them found with those of exactly same specs and temperature rating.
PS: This repair carries a high risk of electric shock if not done correctly. The capacitors hold residual voltages and have to be discharged before working on the board. I would not recommend that you do it yourself unless you have the know how of electronic circuits. A service man might be the way to go if you have never worked on electronics before.
Posted on Oct 31, 2010
it is definately the main board buddy the power board will be fine what it is there is a common fault with this model of tv the boards are faulty on the earlier models ive seen this plenty times before i am a tv technician
Posted on Jan 20, 2011
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