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samcan

Member

Last Activity: 06-07-2013, 04:51 PM

Joined: 08-22-2012

Location: Virginia

samcan replied to Gateway FPD1976w 2 second blackout

in Troubleshooting Computer Displays

01-23-2013, 04:37 PM
Re: Gateway FPD1976w 2 second blackout

Can not find these MOSFETs. Bought some out of China and found that they were bogus knock offs

Still have a bad monitor. Started by changing the caps, replaced the high voltage transformers and replaced the CCFLs. these MOSFETs are the last thing I can deal with if I can get them. ...

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samcan replied to DGM 1931WS Monitor repair Shorted

in Troubleshooting Computer Displays

10-15-2012, 10:00 AM
Re: DGM 1931WS Monitor repair Shorted

These look like bad solder connections, have you done any component replacements?...

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samcan replied to Gateway FPD1976w 2 second blackout

in Troubleshooting Computer Displays

10-13-2012, 06:22 AM
Re: Gateway FPD1976w 2 second blackout

Thanx for the info. I have removed both MOSFETs and per the spec sheet diagram the following is what I have found:

Parts on order!!...

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samcan replied to Gateway FPD1976w 2 second blackout

in Troubleshooting Computer Displays

10-08-2012, 11:09 AM
Re: Gateway FPD1976w 2 second blackout

As you suggested, I have substituted both cclfs with no change in status.
The board lights up the ccfls for about 2 seconds and blinks off with a blue "start" light then tries again for 1-2 seconds and shuts down with an amber "start" light.
Does anyone have a schematic for this board? Where can I get one?...

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samcan started a topic Gateway FPD1976w 2 second blackout

in Troubleshooting Computer Displays

10-06-2012, 08:54 AM
Gateway FPD1976w 2 second blackout

After following the great post ( A guide on how to troubleshoot 2 seconds to black) my monitor still will not stay lit.

I have replaced the caps with (Gateway FPG1975W repair kit ILPI-021kit) from ccl-la.com with no positive results.

I tested the high voltage transformers and found them @ 639 and 640 OHMS, within the 3% tolerance.

I used a known good CCFL to substitute one at a time with no change. The monitor will not stay lit. I however can see the text on the screen using a flashlight after blackout.

What does this power transistor...

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samcan started a topic Gateway FPD1976w 2 second blackout

in Troubleshooting Laptops, Tablets, and Mobile Devices

10-03-2012, 03:10 PM
Gateway FPD1976w 2 second blackout

I have been following the OPs re: this problem and have replaced the caps with (LCD repair kit for Gateway FPD1976w from CCL-La) even thou they did not look bad with no improvement. I checked the primaries of the high voltage transformers and found them to be @640ohms each and have not changed them. I then used a known good CCFL to replace the top CCFL no change and then the bottom CCFL of the monitor with no change in status.

What else could be causing this monitor to start up and go dark? I can see the text on the screen after blackout using a flashlight. It definitely seems like...

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samcan started a topic Tektronix 422 losing intensity

in Equipment Usage, Soldering, Techniques, and Reviews

08-29-2012, 06:19 PM
Tektronix 422 losing intensity

My Type 422 Tektronix scope intensity knob needs to be near or at max clockwise to be able to have a trace.

Any suggestions on re-establishing full range intensity?
Do I need a new CRT?...

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samcan replied to Harman Kardon locked in Tape1/Copy and Tape2 mode

in Troubleshooting Audio Equipment

08-25-2012, 04:36 AM
Re: Harman Kardon locked in Tape1/Copy and Tape2 mode

Could it be Q809 holding both Q801 and Q802 on?

Or is IC 802 bad?

With all the "logic" going on I do not know how to isolate, should I just start to replace until see progress?...

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Last edited by samcan; 08-25-2012, 04:45 AM.
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samcan replied to EMU 1820M not working properly

in Troubleshooting Audio Equipment

08-24-2012, 07:36 PM
Re: EMU 1820M not working properly

Anyone heard of NTE caps?...

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samcan started a topic Harman Kardon locked in Tape1/Copy and Tape2 mode

in Troubleshooting Audio Equipment

08-24-2012, 06:48 PM
Harman Kardon locked in Tape1/Copy and Tape2 mode

My Harman Kardon 3400 decided to lock into:
"Tape1/Copy" and "Tape2" mode.
I hadn't started to trouble shoot, when I found this site and could use some direction.

First I am trying to get the photos taken and attached properly.

Any assistance would be greatly appreciated....

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Last edited by samcan; 08-24-2012, 06:52 PM.
samcan replied to New Members - please post your introductions here

in Announcements & Related News

08-22-2012, 09:27 PM
Re: New Members - please post your introductions here

Hello to all you recaps.

I'm samcan. That's what my wife says when something around the house needs made right. I try and succeed most times and this site will definitely help.

Delighted to have found this site while trying to repair my daughters Gateway monitor. It has the dreaded black screen.

I hope to learn and possible repair a few things.

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Gateway FPD1976w 2 second blackout

Gateway FPD1976w 2 second blackout

Tektronix 422 losing intensity

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Harman Kardon locked in Tape1/Copy and Tape2 mode

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