capacitor with no esr value

**budm** · 06-14-2012, 11:26 AM

Re: capacitor with no esr value

I use the same method as Tom.

**1supertech** · 06-14-2012, 11:39 AM

Re: capacitor with no esr value

I can't wait till I am a pro at this stuff ;-)

**tom66** · 06-14-2012, 12:32 PM

Re: capacitor with no esr value

I'm no pro - any of my knowledge is sourced from repairing lots and lots of TVs.

Though no where near as many as Bud!!

**1supertech** · 06-19-2012, 10:54 AM

Re: capacitor with no esr value

Update on Ensinia 32" tv
I installed 2 LDO regulators on mainboard still have the same problem
I measured voltage on both regulators I get

Regulator 1 from left to right

000.7
1.803
05.04

regulator 2

000.7
1.802
05.04

I looked for a fuse on the Tconn could not find it. should the Tcon have a fuse ?

I did find a fuse under f1 it' ohm measured 0000 I gather that is good

Thanks for any response

**budm** · 06-19-2012, 11:50 AM

Re: capacitor with no esr value

Form post 49
"From left to right
1.3

3.303

05.04

part # EHI6A
715F83"

Did you replace the LDO with 1.8V fixed output regulators? In post 49, the regulator is an adjustable LDO that has too high of the output voltage, it should have an output of 2.5V (1.25 + 1.3 = 2.5V).

**1supertech** · 06-19-2012, 11:56 AM

Re: capacitor with no esr value

Here is a Digi-key part # AP1117E118GDICT-ND

How do I adjust It I hope it's self adjusting forgive my ignorance.

**retiredcaps** · 06-19-2012, 12:20 PM

Re: capacitor with no esr value

Originally posted by 1supertech

Here is a Digi-key part # AP1117E118GDICT-ND

How do I adjust It I hope it's self adjusting forgive my ignorance.

The correct part number is

AP1117E18GDICT-ND

at

http://www.digikey.com/product-detai...ICT-ND/1301520

which is a fixed NON adjustable regulator. You can't adjust it. You have to put in the correct part. The 18 in the part number above indicates it is a fixed output of 1.8V DC.

**1supertech** · 06-19-2012, 01:55 PM

Re: capacitor with no esr value

Originally posted by retiredcaps

The correct part number is

AP1117E18GDICT-ND

at

http://www.digikey.com/product-detai...ICT-ND/1301520

which is a fixed NON adjustable regulator. You can't adjust it. You have to put in the correct part. The 18 in the part number above indicates it is a fixed output of 1.8V DC.

my type O 1118GDICT-ND too many 1's sorry
this is what I have AP1117E18GDICT-ND

**budm** · 06-19-2012, 03:19 PM

Re: capacitor with no esr value

I am confused, on post 49 we were talking about the bad Adjustable regulator, but where are these 1.8V Fixed regulators are from on the board.

**1supertech** · 06-19-2012, 03:36 PM

Re: capacitor with no esr value

Originally posted by budm

I am confused, on post 49 we were talking about the bad Adjustable regulator, but where are these 1.8V Fixed regulators are from on the board.

This is the mainboard two NP3 marked in red

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**budm** · 06-19-2012, 05:14 PM

Re: capacitor with no esr value

So both of them has -18 marking on them?

**retiredcaps** · 06-19-2012, 05:42 PM

Re: capacitor with no esr value

Originally posted by 1supertech

my type O 1118GDICT-ND too many 1's sorry
this is what I have AP1117E18GDICT-ND

Sorry, I meant you typed in the wrong part number and the correct part number is. I believe budm has advised that you get an adjustable one as per posts #49 to #57. If correct, then you ordered the wrong part.

**infringer** · 06-19-2012, 08:00 PM

Re: capacitor with no esr value

They make something called solder wick you could try this basically its stranded copper so if you have some stranded copper wire laying around you could try this and use it like solder wick possibly.

I use it to remove all sorts of stuff actually and seems to work for just about anything if I don't feel safe using the hot air station cause I ran out of tinfoil to protect surrounding components ...

Anyhow I wish you luck.

**tom66** · 06-19-2012, 11:56 PM

Re: capacitor with no esr value

Solder wick is stranded copper dipped in flux. But without the flux it won't work very well, if at all.

**1supertech** · 06-20-2012, 07:40 AM

Re: capacitor with no esr value

Originally posted by retiredcaps

Sorry, I meant you typed in the wrong part number and the correct part number is. I believe budm has advised that you get an adjustable one as per posts #49 to #57. If correct, then you ordered the wrong part.

This is what is in post 49 AMS1117-18, post 57 is a PDF with many part #
If you can direct me to the part that I need I would be gratefully appreciated.

Digi-key search is not newbe friendly

Thanks all

**1supertech** · 06-20-2012, 10:52 AM

Re: capacitor with no esr value

I have a link to a regulator would it work

http://il.rsdelivers.com/product/nat...3/5358663.aspx

Or

http://www.digikey.com/product-detai...JTR-ND/2349403

**budm** · 06-20-2012, 12:18 PM

Re: capacitor with no esr value

Any one in the PDF will do.
For example:
http://www.digikey.com/product-detai...44-1-ND/586244

I also see where the confusion come from and why you had ordered the 1.8V regulator, Tom was giving you and example how to tell if you have fixed regulator if it has -18 on the P/N. The "AMS1117-18" is just an example not the actual for you to order since you have adjustable regulator as shown by what the voltage you were getting at the 3 pins as you have posted #49 one ONE of the TWO regulator. The one with the reading a shown below needs to be changed for sure:

"From left to right
1.3

3.303

05.04

part # EHI6A
715F83"

So one of them has bad reading, but you have shown TWO regulators as marked in the picture. What was the reading of the other one.

Originally Posted by tom66
Meter on volts DC (20V), black probe in COM slot on meter and in a spare screw hole on TV (or any hole on the metal frame), red probe in volts/ohm and test each pin. Middle pin is the same as the fat tab, no need to test the fat tab. Report the pins 1, 2 and 3 (labelled arbitrarily, suggest left to right and that you keep it the same for each device.) Also include the part number on the device, for example AMS1117-18"

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1117 ADJ LDO SOT-223 DIGIKEY.pdf (255.8 KB, 7 views)

**1supertech** · 06-21-2012, 04:08 AM

Re: capacitor with no esr value

Never tested the other since they were both the same type I replaced it.

I will order from the link you suggested

Thanks a bunch

**budm** · 06-21-2012, 01:23 PM

Re: capacitor with no esr value

You can tell for sure if they are both the same by looking at pin 1 to see if it has two resistors connect to it. That is how you can tell if they are adjustable regulators, and the voltage between pin 1 and pin 2 will always be 1.25V.

**1supertech** · 06-22-2012, 06:11 AM

Re: capacitor with no esr value

Originally posted by budm

You can tell for sure if they are both the same by looking at pin 1 to see if it has two resistors connect to it. That is how you can tell if they are adjustable regulators, and the voltage between pin 1 and pin 2 will always be 1.25V.

So this should be an adjustable regulator ?

would you have a pic of a non adjustable regulator you can post ?

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capacitor with no esr value

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