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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-21-2012, 02:18 PM
Re: Iiyama 2607WS suddenly dead

The parts are from [URL="http://ju-tec.de/"]ju-tec.de[/URL]. A few kilometres away from me.Re: Iiyama 2607WS suddenly dead

The parts are from [URL="http://ju-tec.de/"]ju-tec.de[/URL]. A few kilometres away from me.Re: Iiyama 2607WS suddenly dead

The parts are from [URL="http://ju-tec.de/"]ju-tec.de[/URL]. A few kilometres away from me.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-21-2012, 10:14 AM
Re: Iiyama 2607WS suddenly dead

Ok guys, I soldered the caps back in, put silver grease on the new MBR20100CT, soldered it in, plugged the PS into the wall and measured perfect ~5V and ~12V on the connector to the controller board.
The screen is working like a charm for hours now. I am so happy. Thank you very very much for your help and patience budm and jetadm123. Cost me a buck.

Merry christmas to you and the Badcaps Forums!!!

[ATTACH]53803[/ATTACH]...

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-20-2012, 08:08 AM
Re: Iiyama 2607WS suddenly dead

After another resistance measurement of 2045, I think it is intact.
I will solder the new 20100 in and check again.

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Last edited by formatthias; 12-20-2012, 08:11 AM.
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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-20-2012, 03:25 AM
Re: Iiyama 2607WS suddenly dead

I just ordered two 20100 and two 2045.
Will solder out 2045 today and check it.
The Caps are Taicon 25V 470uF. Seem to be ok.

On center pin of 10150 I read +12V. Pin is connected to ZD770/1.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 04:16 PM
Re: Iiyama 2607WS suddenly dead

Measured infinite without 20100 from center to ground. 0.6 Ohms in both directions, yes.
One of the two is broken.
What about MBR2045?

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 03:53 PM
Re: Iiyama 2607WS suddenly dead

ok, measured 60kohms between pins 1 and 2 and 0.6 Ohms between 2 and 3.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 03:41 PM
Re: Iiyama 2607WS suddenly dead

will solder 20100 out now

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 03:37 PM
Re: Iiyama 2607WS suddenly dead

Soldered them out. Still 0.6 Ohms from center pin of 20100 to ground.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 02:50 PM
Re: Iiyama 2607WS suddenly dead

Did that already. 0.6 Ohms across each of the two caps.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 02:34 PM
Re: Iiyama 2607WS suddenly dead

1.4kohms on both

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Last edited by formatthias; 12-19-2012, 02:44 PM.
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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 02:25 PM
Re: Iiyama 2607WS suddenly dead

will check it

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Last edited by formatthias; 12-19-2012, 02:31 PM.
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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 02:00 PM
Re: Iiyama 2607WS suddenly dead

It's the one on the edge of the board.
What about MBR2045CT? Should be infinite too.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-19-2012, 01:38 PM
Re: Iiyama 2607WS suddenly dead

Hi Bud,

the resistance measurements from center pins to ground:

MBR20100CT

0.6 Ohms

MBR2045CT

1.7 kOhms

MBR10150CT

infinite

Thanks!

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 03:37 PM
Re: Iiyama 2607WS suddenly dead

The measurements are exact. It is not a regulator. It is a MBR20100CT.

[ATTACH]53582[/ATTACH]

I have to go to sleep now, thank you so far for your help.Re: Iiyama 2607WS suddenly dead

The measurements are exact. It is not a regulator. It is a MBR20100CT.

[ATTACH]53582[/ATTACH]

I have to go to sleep now, thank you so far for your help....

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 03:05 PM
Re: Iiyama 2607WS suddenly dead

How can I heat up the cap? Here is a picture of the measured diodes. It is not a regulator. It is a MBR20100CT.
Mosfet seems to be ok.

[ATTACH]53577[/ATTACH]...

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Last edited by formatthias; 12-18-2012, 03:27 PM.
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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 02:36 PM
Re: Iiyama 2607WS suddenly dead

How can I measure a mosfet exactly? Tomorrow I will solder out the two diodes and test them again. Here it is 21:33PM. Thank you so far.

I measure 0.5V on the connector. Tells me something is wrong with the AC-DC conversion in the upper left corner.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 02:13 PM
Re: Iiyama 2607WS suddenly dead

I think the two diodes are broken. Types are MBR2045CT and MBR20100CT. The mosfet is a K3673. Do you think the diodes died with the mosfet?

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 01:56 PM
Re: Iiyama 2607WS suddenly dead

The large brown cap holds 320V DC.

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Last edited by formatthias; 12-18-2012, 01:59 PM.
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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 01:33 PM
Re: Iiyama 2607WS suddenly dead

Thanks. Ok, now I measured the diodes on the heatsinks. The upper two have continuity in both directions.

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formatthias replied to Iiyama 2607WS suddenly dead

in Troubleshooting Computer Displays

12-18-2012, 12:47 PM
Re: Iiyama 2607WS suddenly dead

Both are ok.

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