Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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

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Jerry G.
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"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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Tom MacIntyre
 
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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.


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Cubzilla
 
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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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