245BW, can't find problem. No 24 or 6.3V, standby is good.

[PlainBill]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

http://www.audiolabga.com/data_html/STR.html

Well done!!!

PlainBill

[Toasty]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

http://www.audiolabga.com/data_html/STR.html

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

How do you know that's the same thing?

[Toasty]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Google: CP08515F

SearsPartsDirect.com: $2.16
PartStore.com: $2.18

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Well it's too late to call today so I guess I will send a e-mail and try calling tomorrow.

EDIT: Well now I have to fix this monitor ASAP. I got my Dad a new video card and it won't work with his CRT for some odd reason.

[PlainBill]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Well I don't know what it is but I replaced it with the exact same type.

One here for $4
http://www.audiolabga.com/data_html/STR.html

Can't get it to accept my postal code for shipping calculation though.

Strange. Where are you located? And have you tried contacting them either by email or telephone?

PlainBill

[PlainBill]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Nope it still doesn't work, I refuse to pay $10 for a single IC. >:|

Especially when it's not guaranteed to be the problem.

I understand how you feel. There are very few options at this point. I have been unable to locate a schematic for this power supply.

With an oscilloscope and isolation transformer we could determine if the IC is 'live' or not.

The symptoms do not match a shorted output diode, but that could be tested. It is the large diode mounted at a diagonal to the right of the standby transformer.

Replacement power supplies are available for under $55.

PlainBill

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Well I don't know what it is but I replaced it with the exact same type.

One here for $4
http://www.audiolabga.com/data_html/STR.html

Can't get it to accept my postal code for shipping calculation though.

[smason]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

That cap circled in blue, it MIGHT be bad? I can go higher in the uf rating right?

Umm no, if that's the startup cap, you should replace it with the same value as what's there now.

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Nope it still doesn't work, I refuse to pay $10 for a single IC. >:|

Especially when it's not guaranteed to be the problem.

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

That cap circled in blue, it MIGHT be bad? I can't get more then 0.07V's from it. It also has some clear goo on the top that I thought was just hot glue but maybe I am wrong?

EDIT: You know what, I'm an idiot. The more I think about it I realize that can't be hot glue. I will go down to radio shack tomorrow and see if they have anything.

I can go higher in the uf rating right?

EDIT 2: Screw it I will just order from Digikey, I need a DVI cable too and don't wanna pay $30 for one.

[Toasty]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

The -file- size is the limit. Your pic is only 140kb. The forum limit is 1.9Mb for .jpeg and 3.8Mb for .jpg (there's a difference?).

The pixel size limit is requested to be no greater than 2000 x 2000 pixels. The forum auto-resizes it when you post it inline so it doesn't FUBAR all the pages. Posting it as an attachment doesn't screw with people who have limited bandwidth and speed. It allows them to -choose- to see the big pictures, one at a time, not have the forum "shove them all down their throats".

Posting it on the site preserves it for eternity (LOL!) in our server. ImageShack and the like sometimes delete the pics or the account and then it's lost to anyone looking for info here in the future.

It may have failed because edit time expired (30 minutes, IIRC).

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

I tried it just says upload failed because its too big I think. Why does it matter where it's hosted anyway?

[Toasty]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

It would have been fine. Edit your post, pick "Go Advanced" and choose "Upload Attachment" and use the "Upload from URL" of the picture from Google. Quick!

TOOO late. I did it for you.

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Sorry I didn't want to upload it here because I would have to make it smaller. Ignore what looks like a really bad solder job I fixed it and it looks a lot better in person. I wasn't the one that replaced the caps.

[Toasty]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

B&D is fine. Used them for TV parts in the past.

Everybody else has the part cheaper, but no stock...

Newark has them for 92¢ each if you buy 1000

If you replaced all the caps in that area as you said, what brand and series did you use?
i.e.- Radio Shack caps are not acceptable.

Trace the power supply circuit to that chips input (Pin 2) as PlainBill noted.

A closer, better lit picture of the back of the board (mind the glare) of the upper left which is the area of interest. Essentially (from your current photo) above the horizontal black line and the left of the vertical black line/slots.

.

[PlainBill]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Well where the heck do I get a new one?

EDIT: Measured what I think is the correct cap with it powered on and it was giving out 0.01V's. Could you circle the cap that I should be measuring in the picture?

Available from this firm. I'm not familiar with the firm,and the price seems somewhat high. I found it by Googleing buy STR-A6159.

The picture of the bottom wasn't good enough to allow me to positively identify the startup cap. The cap circled in blue is the primary suspect. The ones circled in yellow are also possibilities.

Plainbill

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Well where the heck do I get a new one?

EDIT: Measured what I think is the correct cap with it powered on and it was giving out 0.01V's. Could you circle the cap that I should be measuring in the picture?

[PlainBill]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Oh well this sounds dangerous... SIGN ME UP!

1:0.01
2:11.6
4:0.01
5:153.2

Pin 2 is the key. The SMPS controller won't start until it reaches 17.5 volts. On similar ICs, the solution has been to replace the SMPS controller. You might wish to first check the capacitor connected to pin 2.

PlainBill

[epicelite]

Re: 245BW, can't find problem. No 24 or 6.3V, standby is good.

Oh well this sounds dangerous... SIGN ME UP!

1:0.01
2:11.6
4:0.01
5:153.2