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-   -   Acer 77e slow warm up (https://www.diybanter.com/electronics-repair/83540-acer-77e-slow-warm-up.html)

John Keiser December 28th 04 10:13 PM

Acer 77e slow warm up
 
My wife's 17 inch monitor works fine if its used daily. If its been off for
a week or so, it takes about 1/2 hour to gradually come from a black screen
to full brightness.

I assume this a a sign of a bad capacitor. Since the problem resolves
fairly quickly I expect I will have a problem finding the real culprit
without changing out a whole lot unnecessarily..

Should I suspect something in the power supply or one of the caps in the CRT
filiment circuit?

Thanks for any tips.
--
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Jerry G. December 29th 04 03:34 AM

I would start with an ESR meter to test the caps in the power supply, and
then go over to the scan sections.

--

Jerry G.
=====

"John Keiser" wrote in message
news:bUkAd.19157$_62.11128@trnddc01...
My wife's 17 inch monitor works fine if its used daily. If its been off for
a week or so, it takes about 1/2 hour to gradually come from a black screen
to full brightness.

I assume this a a sign of a bad capacitor. Since the problem resolves
fairly quickly I expect I will have a problem finding the real culprit
without changing out a whole lot unnecessarily..

Should I suspect something in the power supply or one of the caps in the CRT
filiment circuit?

Thanks for any tips.
--
Remove -NOSPAM- to contact me.




Tom MacIntyre December 29th 04 09:56 PM

On Tue, 28 Dec 2004 22:13:27 GMT, "John Keiser"
wrote:

My wife's 17 inch monitor works fine if its used daily. If its been off for
a week or so, it takes about 1/2 hour to gradually come from a black screen
to full brightness.

I assume this a a sign of a bad capacitor. Since the problem resolves
fairly quickly I expect I will have a problem finding the real culprit
without changing out a whole lot unnecessarily..

Should I suspect something in the power supply or one of the caps in the CRT
filiment circuit?


That's the first place I'd look...could be a bad capacitor, or even a
bad connection.

Tom


Thanks for any tips.



Cubzilla December 30th 04 07:50 AM

For gods sake wear rubber shoes

Or better still take it to a service centre


Regards

"John Keiser" wrote in message
news:bUkAd.19157$_62.11128@trnddc01...
My wife's 17 inch monitor works fine if its used daily. If its been off
for a week or so, it takes about 1/2 hour to gradually come from a black
screen to full brightness.

I assume this a a sign of a bad capacitor. Since the problem resolves
fairly quickly I expect I will have a problem finding the real culprit
without changing out a whole lot unnecessarily..

Should I suspect something in the power supply or one of the caps in the
CRT filiment circuit?

Thanks for any tips.
--
Remove -NOSPAM- to contact me.





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