Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

[mob809k]

I have an Olevia 537 B11 that has 2 problems.

at first it started turning itself off by itself. i double checked if there was any kind of sleep timer but sadly found out on the internet that it was a common issue.

i am not sure wich is the part that i have to change for that. i took the power supply to a technician and he told me that it looker ok. ut i understand that the looks of things do not mean much. i figured that i was going to keep using the TV that way. sometimes i went for days and weeks working good then, the ghost in the machine came and turn it of in different intervals of time. sometimes minutes, hours.

But recently a new issue came to my attention a saw your comment on a thread. Now, when i turn the tv on the image blinks, then it stabilizes then after 15 minutes or so goes blank. i still have sound but no image.

i am hoping you tel what parts can be affected so i can get them and fix my own tv.

The fact is that i live in the dominican republic and is very hard to find a decent technician here.

Thank you.

[PlainBill]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I have an Olevia 537 B11 that has 2 problems.

at first it started turning itself off by itself. i double checked if there was any kind of sleep timer but sadly found out on the internet that it was a common issue.

i am not sure wich is the part that i have to change for that. i took the power supply to a technician and he told me that it looker ok. ut i understand that the looks of things do not mean much. i figured that i was going to keep using the TV that way. sometimes i went for days and weeks working good then, the ghost in the machine came and turn it of in different intervals of time. sometimes minutes, hours.

But recently a new issue came to my attention a saw your comment on a thread. Now, when i turn the tv on the image blinks, then it stabilizes then after 15 minutes or so goes blank. i still have sound but no image.

i am hoping you tel what parts can be affected so i can get them and fix my own tv.

The fact is that i live in the dominican republic and is very hard to find a decent technician here.

Thank you.

I understand how you feel. I live in the USA, and it is hard to find a decent technician here too!!!

The next time the TV goes blank (but still has sound), try to see if you have anything on the screen. Sometimes shining a flashlight on the screen in a dark room will help. If you can see a faint image, there is an inverter problem. That may be fixable.

PlainBill

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Finally. After several days it did it again. I checked for ghosts in the screen. nothing there, all blank. The screen appears to be off.

before it goes blank the screen starts to blink. it goes dark and bright then it goes off.

when i turn the tv on it does blink but after a few seconds it becomes stable.

Any ideas?

[PlainBill]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Finally. After several days it did it again. I checked for ghosts in the screen. nothing there, all blank. The screen appears to be off.

before it goes blank the screen starts to blink. it goes dark and bright then it goes off.

when i turn the tv on it does blink but after a few seconds it becomes stable.

Any ideas?

Yeah, it's probably not the backlight system.

PlainBill

[iKitsune]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Check the power supply - my Syntax Olevia 42" LCD had bad caps in the power supply section, and the 537-B11 (yours) and the 542-B11 (mine) share a power supply design.

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

What was your tv doing?

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Plain bill if it is the backlight system what do I have to do?

[PlainBill]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Plain bill if it is the backlight system what do I have to do?

IF it is the backlight system you have to fix it. But first you should determine if the backlights were switched off by the mainboard, or were shut off by the inverter controller because of a fault. Hint: Take a look at the cable connecting the inverter to the main board. Is there a label there indicating the function of the pins?

PlainBill

[iKitsune]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

What was your tv doing?

Pretty much exactly what you described until one of the caps said "Pop!" and it stopped powering on at all.

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

any recommendation on what to do first?.....
should i change the caps of the power supply then try the other cards?

[PlainBill]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

any recommendation on what to do first?.....
should i change the caps of the power supply then try the other cards?

Any obviously bad components should be replaced, especially bulging caps in the power supply. If the TV still isn't working, THEN start looking for other problems.

PlainBill

[iKitsune]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

any recommendation on what to do first?.....
should i change the caps of the power supply then try the other cards?

Replacing the 10 caps on the power supply secondary side brought my unit back to perfect operation.

I didn't actually measure the voltages, but I imagine with the caps in the shape they were in they weren't in spec, and the rest of the set couldn't operate properly with the voltages all jacked up.

[tmwalsh]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

What has not been mentioned is the 'type' of capacitors you used for replacement. Generally speaking, you want 105C heat rating & "Low ESR" for replacements in SMPS, which is what most sets will have.
If you used generic RadioShack capacitors, they might not last as long as you would wish.
tom

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

Thanks. Very usefull!

[skytribe]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I've got a 537H and experienced the same problem - have a new power board to replace.

Any hints/tips on getting opening up the TV to get to the power box. I'd searched for a service manual with details of where all the screws are but to no avail.

[Village Electronics]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I understand how you feel. I live in the USA, and it is hard to find a decent technician here too!!!

PlainBill

There are hundreds of highly qualified TV service people in the United States. Locating them is easy. You can search via the manufacturer's website. Zipcode will find the closest authorized service center. Those centers are already familiar with the product and have a working relationship with the producer of the product. You can search via NESDA.

http://www.nesda.com/

and there are other trade groups that have search-able zipcode locators.

[daimoku]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I have an Olevia 237-S11 which uses the same power supply AEP016-37.

The power supply uses a combination of United Chemicon (UC) KY series and Elite caps. Found several high ESR, out of spec Elite caps so I replaced all the Elite caps. Left the UC caps.

Unfortunately, I believe I found the source of my intermittent problem too. In my case, the tv would sometimes run for a day or two and other times just a couple of hours. When it stopped running, it would power off (no sound, no video, no dim screen), but I could turn it back on immediately. Through experimentation, I determined the problem is heat sensitive. Last night, I found a lifted trace at C33 when I was replacing the Elite brand capacitors. I should have addressed it then instead of proceeding with replacing the cap at that location; I exacerbated it when I desoldered and soldered the new cap (see the attached image).

I haven't had a chance to repair it yet, but hopefully that will take care of it. I'll report back when I get a chance to repair and test the results.

[PlainBill]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

There are hundreds of highly qualified TV service people in the United States. Locating them is easy. You can search via the manufacturer's website. Zipcode will find the closest authorized service center. Those centers are already familiar with the product and have a working relationship with the producer of the product. You can search via NESDA.

http://www.nesda.com/

and there are other trade groups that have search-able zipcode locators.

I tried that with my Mitsubishi DLP TV. The phone numbers listed were no longer in service.

Someone else tried that with an LG Plasma TV. The shop charged him $50 to diagnose the problem as the Y-Sustain and Y Buffers at a repair cost of over $500. The owner sold the TV to me. When I opened it up I saw no sign it had been previously serviced - no marks on the screws, no dust disturbed inside. The problem was the Z-Sustain.

Yes, there are plenty of good, honest technicians. The problem is finding them.

PlainBill

[retiredcaps]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I haven't had a chance to repair it yet, but hopefully that will take care of it.

Are you going to resolder or run a jumper wire? I would love to see a picture of whatever repair you decide to do.

[mob809k]

Re: Olevia Syntax Brillian 537-B11 tuning itself off + image going blank

I've got a 537H and experienced the same problem - have a new power board to replace.

Any hints/tips on getting opening up the TV to get to the power box. I'd searched for a service manual with details of where all the screws are but to no avail.

SkyTribe, i actually solved my problem. i first changed the power supply but didn't fix the problem so i had tu buy the other 2 cards. unfortunately i had a technician come in that dropped a bare cable on the power supply and fried my tv so i had to change the main board also.

i found all the parts on ebay for around 200 dollars.

i should have bought a new TV for 100 more, but life is life.

good luck with your repair.

Mario