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Olevia 542-B11 LCD - No Pict No sound - only blue powerlight   Goto page Previous  1, 2, 3, 4  Next  
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TonyC1



Joined: 17 Mar 2009
Posts: 71
PostPosted: Fri Jan 29, 2010 4:16 pm    Post subject: no power supply Reply with quote
I don't have a power supply - just multimeter, capacitance meter, soldering iron. I have gotten good help from this website & gotten lucky with a couple of my tvs - just hoping to keep the streak going.

The on/off button board cable joins up with the other control buttons board - a cable then runs out of that small board to the main board - see blue connector in pict.



If I jump acrosss the power button with my meter when tv is plugged in I should get a reading - Is this ok to try?
Google
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JTS1957



Joined: 21 Jan 2009
Posts: 1331
Location: Far, Far Away
PostPosted: Fri Jan 29, 2010 4:30 pm    Post subject: Reply with quote
JTS1957 wrote:
Clean up the solder side of board and retake pix.
1) "J1" I presume, goes on to rest of keypad and then to Control board?
2) CNS1 goes to same control board?
3) External supply to power on the power supply - 5V/18V/12V work or no (or you didn't try this test)?
TonyC1



Joined: 17 Mar 2009
Posts: 71
PostPosted: Mon Feb 01, 2010 8:35 am    Post subject: new pict of cleaned board Reply with quote
Cleaned up board & new pict as requested



dlillibridge



Joined: 01 Jul 2010
Posts: 1
PostPosted: Thu Jul 01, 2010 6:19 am    Post subject: TonyC1 Reply with quote
Did you ever get you tv working? I am having the same issue?
TonyC1



Joined: 17 Mar 2009
Posts: 71
PostPosted: Wed Jul 07, 2010 7:49 pm    Post subject: No TV still not working Reply with quote
But I actually rebuilt all my power supply CAPS & ordered a new one but still no go (obviously its not the PS). Anyone interested in buying them just let me know. $75 each. both for 125
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hangashore



Joined: 05 Aug 2010
Posts: 1
Location: Canada
PostPosted: Thu Aug 05, 2010 6:49 am    Post subject: Olevia tv same problem Reply with quote
Did anyone figure out what the problem is. I have the same situation.
Easycustoms



Joined: 04 Sep 2010
Posts: 4
Location: Boston
PostPosted: Sat Sep 04, 2010 3:02 pm    Post subject: Reply with quote
Hey TonyC1,
Still selling the power supply? Mine just sh*t the bed. I get no blue light at all. When I click the "ON/OFF" switch the blue light just flashes real quick. One day I was messing around with it a bit and the blue light started working again. Sure enough it ended up powering off and never turning on again. Please Get back to me.
-Eric
TonyC1



Joined: 17 Mar 2009
Posts: 71
PostPosted: Wed Sep 08, 2010 8:22 pm    Post subject: PS still for sale Reply with quote
The power supplies are still for sale - let me know how you want me to contact you.

Tony
Easycustoms



Joined: 04 Sep 2010
Posts: 4
Location: Boston
PostPosted: Sat Sep 11, 2010 8:15 pm    Post subject: Reply with quote
Tony,
Send me an email. Bostoneric26-yah00
Curt Palme



Joined: 22 Sep 2010
Posts: 2
Location: Vancouver, Canada
PostPosted: Wed Sep 22, 2010 6:41 pm    Post subject: Reply with quote
Late to the plate on this one, but this might help someone.

Anyways, I have one of these units with the same problem, blue light is on on the front, but a dead TV otherwise. I've taken troubleshooting a bit further, based on the above pix.

I found that the 5 volt standby voltage was fine, all caps on the power supply checked OK, but no other voltages were present.

ON a hunch, I shorted the 5V standby line to the o/f pin via a jumper, and I then was able to power up the entire power supply. All voltages were bang on, and there are 5 red LEDs on on the main processor board, voltage indicators I'd assume.

So... all that powered up fine, but the set was still dead. The 24 volts was running fine to the backlight board, so my assumption is that one of the large chips on the main board has lifted slightly from the PC board, causing the set to be dead.

This would be a similar problem to the 'RRoD' XBox 360 issue that plagued the Xboxes. The chips get too hot, the solder joints crack under the chip, and it's game over (pun intended).

I'd guess that some of you at least that have bad Olevia sets have a bad motherboard.

If anyone has a unit with a bad power supply, bad LCD panel and wants to dump the motherboard cheap, let me know. Otherwise if I get nothing within a month, I'll part this one out.
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