Comments on: About Shorted Resistor

By: Jestine Yong

Jestine Yong — Mon, 30 Jul 2012 14:09:27 +0000

Hi Abraham,

Is there B+ supply voltage and a pulse to the HOT? Without these two signals, the flyback will not be energized thus no voltages (g1, g2 and even no high voltage.

Jestine

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By: Jestine Yong

Jestine Yong — Mon, 30 Jul 2012 14:05:59 +0000

In reply to ABRAHAM CHEMWENO.

Hi Abraham,

Hissing sound usually from inductor or transformer. You may need to remove the cover or the base to hear where the sound from.

Jestine

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By: ABRAHAM CHEMWENO

ABRAHAM CHEMWENO — Sun, 29 Jul 2012 22:06:57 +0000

what is causing the base of a monitor cause a hissing sound

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By: ABRAHAM CHEMWENO

ABRAHAM CHEMWENO — Sun, 29 Jul 2012 22:03:04 +0000

i am dealing with a flamingo tv model CTV-1468. I have the power supply working but it is not giving any output on the crt tube

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By: Langstain E.Mhango

Langstain E.Mhango — Fri, 23 Mar 2012 20:06:52 +0000

the information on resistors is quite touchy.we need more of this from those who have come across problems associated with resistors.gud day.

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By: Almas

Almas — Sun, 04 Mar 2012 05:33:30 +0000

Can any body help me to test and pinout of compaq 334112 power supply?

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By: Almas

Almas — Sat, 03 Mar 2012 22:43:04 +0000

This is very useful website for those who want to repair electronics at home. I need some help in regard power supply of compaq deskpro pentium iii

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By: admin

admin — Fri, 13 Aug 2010 00:15:08 +0000

HI Gary,
I have seen this problem before but it was not in this model. It was caused by the bad LCD panel. The only thing that you can do is to reflow the components in the lcd controller board. Most of the time only through replacement of lcd panel then only the problem can be solved.

Jestine

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By: Gary Nichols

Gary Nichols — Thu, 12 Aug 2010 17:29:23 +0000

I have an Optiquest Q20wb that I replaced caps on Power inverter board. Monitor works GREAT. However, it has a tendency now to turn a green hue. If I shut it down and let it sit for a few minutes then turn it back on it will work fine for a short period of time then THE GREEN HUE again. I cannot find anything burnt or shorted on the video control board. I have read 2 other blogs with people who have had the same issue arise with this monitor. Can you give me a clue what it is Jestine? Thanks Gary Nichols

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By: admin

admin — Mon, 03 May 2010 21:44:43 +0000

HI BKEESK,

Is the output voltages from the SMPS good and stable?

Jestine

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