Viewsonic n4060w dead... x3!

[PDMeat]

I've got a total of 4 viewsonic n4060w LCD TVs in a quad wall setup. 3 died in 3 weeks, 2 within 2 days of each other! The symptom is I push the power button and the power LED flashes for a half sec and goes out.

After trying all the basics like new cables, different power source, different video source, letting the TV sit unplugged for hours, nothing works- it seems to have fried something the power circuitry or supply inside the TV.

Anyone have an idea? I'm not an EE but I know a few things and can take this sucker apart and provide more info (DVOM results) for a problem diagnosis.

Thanks in advance for any advice!

Pete

[minnie]

Check CS22 and CS21 (1500mfd at 16volts) in the power supply to see if the tops are mushroomed up.

[PDMeat]

CS19, 20, 21, 22, and 28 are all bulged and most are leaking slightly. I've seen worse on PCs but they definitely have issues.

[minnie]

Get R done! Change them and you should be fine.

[PDMeat]

Schweeeet. thanks for your help minnie!

Also, I found 1 power supply online (its like finding Elvis still alive) and I also came across a place that repairs power supplies.

I'll post back when I try the new PS and also if I send out and get the other two repaired and how they work.

FWIW there seems to be a lot of dead power supplies for viewsonic LCD TVs. Even on this site there was talk about the n3250. I have the same FSP power supply that those with the busted 3250s spoke of and had similar problems.

I called FSP and they are trying to locate some PS for me but they apparently don't keep any. Viewsonic won't even sell me one unless I have a warranty. I guess that says something about how well their PS are holding up. I smell a class action suit brewing...

[Stan]

Don't know if minnie is still around and will read this. I found this thread when my viewsonic N4060W died and I fixed it for under $10.00. Thanks for the info.

[minnie]

[Steviee]

do you mind sharing how? I am having the same issue with my n4060w. it doesnt power on till i hold down the remote for a min or two. Minnie - do you happen to know the part number for the power supply. Thanks in advance guys. Misery does love company
[quote="Stan"]Don't know if minnie is still around and will read this. I found this thread when my viewsonic N4060W died and I fixed it for under $10.00. Thanks for the info.[/quote]

[minnie]

[jayseeyes]

I have a N4060W that took 20-50 times of 'turning-on' the power for switching the TV on. Thanks to suggestions in this thread, I fixed it easily.
Had the capacitors CS22 and CS21 (1500uF / 16V) replaced and the TV is back to normal again! Thanks Minnie (and all)!