CRT Monitor Philips black screen when cold

S

Steinway

Guest
Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it is
cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and fades
out.
When it is warm, after 20-30 minutes, if I turn it off and turn on, the
screen appears and works very good.
Could it be a cap?
Thank you!
S.
 
Steinway wrote:

Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it is
cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and fades
out.
When it is warm, after 20-30 minutes, if I turn it off and turn on, the
screen appears and works very good.
Could it be a cap?
Thank you!
S.


Get your solder iron out and start cleaning up those joints..
Click to expand...

Jamie
 
Jamie <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net> wrote in message
news:kCY0p.26450$Tg1.14228@newsfe13.iad...
Steinway wrote:

Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it
is
cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and fades
out.
When it is warm, after 20-30 minutes, if I turn it off and turn on, the
screen appears and works very good.
Could it be a cap?
Thank you!
S.


Get your solder iron out and start cleaning up those joints..

Jamie
Click to expand...
If the picture is changing X and Y dimensions then an acceleration voltage
is playing up, reducing magnitude leading to increasing dimensions but
fading image
 
bad cap in the flyback xfmr


"Steinway" <slkjdskd> wrote in message
news:4d4439d7$0$2045$4fafbaef@reader1.news.tin.it...
Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it is
cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and fades
out.
When it is warm, after 20-30 minutes, if I turn it off and turn on, the
screen appears and works very good.
Could it be a cap?
Thank you!
S.
Click to expand...
 
"Steinway" <slkjdskd> wrote in
news:4d4439d7$0$2045$4fafbaef@reader1.news.tin.it:

Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it
is cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and
fades out.
When it is warm, after 20-30 minutes, if I turn it off and turn on,
the screen appears and works very good.
Could it be a cap?
Thank you!
S.
Click to expand...
Junk it! It's time to upgrade to a flatscreen.

A new flatscreen twice as big as the CRT and a hundred kilos lighter
costs half as much as fixing the old CRT.
 
On 30/01/2011 5:26 PM, Fred wrote:
"Steinway"<slkjdskd> wrote in
news:4d4439d7$0$2045$4fafbaef@reader1.news.tin.it:

Hallo!
My CRT monitor, Philips 109B, has black screen after 2 seconds when it
is cold: the picture becomes bigger and fades away.
If I turn it off and turn on, the picture again becomes bigger and
fades out.
When it is warm, after 20-30 minutes, if I turn it off and turn on,
the screen appears and works very good.
Could it be a cap?
Thank you!
S.




Junk it! It's time to upgrade to a flatscreen.

A new flatscreen twice as big as the CRT and a hundred kilos lighter
costs half as much as fixing the old CRT.
Click to expand...
Depends how much it costs to fix the CRT. If it's a bad cap, it might be
obvious which one just by looking at it (bulging top and/or leaking),
and the fix, excluding the OP's time, may cost a few dollars.

The OP should of course make sure he's aware of the hazards associated
with CRTs even when there's no power applied.

Sylvia.
 
"Sylvia Else" <sylvia@not.here.invalid> ha scritto nel messaggio
news:8qkkteFd62U1@mid.individual.net...

Depends how much it costs to fix the CRT. If it's a bad cap, it might be
obvious which one just by looking at it (bulging top and/or leaking), and
the fix, excluding the OP's time, may cost a few dollars.

The OP should of course make sure he's aware of the hazards associated
with CRTs even when there's no power applied.

Sylvia.
Click to expand...
In fact I'd like to repair it myself, without OP's time - if I can't repair
it, I buy another monitor :)
 
"circuit" <circuit@123456.tv> ha scritto nel messaggio
news:ii2ce4$d6h$1@speranza.aioe.org...
bad cap in the flyback xfmr
Click to expand...
Thank you!
 
On 30/01/2011 7:20 PM, Steinway wrote:
"Sylvia Else"<sylvia@not.here.invalid> ha scritto nel messaggio
news:8qkkteFd62U1@mid.individual.net...

Depends how much it costs to fix the CRT. If it's a bad cap, it might be
obvious which one just by looking at it (bulging top and/or leaking), and
the fix, excluding the OP's time, may cost a few dollars.

The OP should of course make sure he's aware of the hazards associated
with CRTs even when there's no power applied.

Sylvia.

In fact I'd like to repair it myself, without OP's time - if I can't repair
it, I buy another monitor :)
Click to expand...
I'm confused, or perhaps just befuzzled. Aren't you the OP (original
poster)?

Sylvia.
 
"Sylvia Else" <sylvia@not.here.invalid> ha scritto nel messaggio
news:8qklutFigeU1@mid.individual.net...

I'm confused, or perhaps just befuzzled. Aren't you the OP (original
poster)?

Sylvia.
Click to expand...
Yes, I am the original poster, Steinway!
 
Sylvia Else <sylvia@not.here.invalid> wrote in news:8qkkteFd62U1
@mid.individual.net:

Depends how much it costs to fix the CRT. If it's a bad cap, it might be
obvious which one just by looking at it (bulging top and/or leaking),
and the fix, excluding the OP's time, may cost a few dollars.

The OP should of course make sure he's aware of the hazards associated
with CRTs even when there's no power applied.

Sylvia.
Click to expand...
OP's savings in electric bill ALONE justifies buying the new LCD, even if
he can fix it for free.
 
Fred wrote:
Sylvia Else <sylvia@not.here.invalid> wrote in news:8qkkteFd62U1
@mid.individual.net:

Depends how much it costs to fix the CRT. If it's a bad cap, it might be
obvious which one just by looking at it (bulging top and/or leaking),
and the fix, excluding the OP's time, may cost a few dollars.

The OP should of course make sure he's aware of the hazards associated
with CRTs even when there's no power applied.

Sylvia.



OP's savings in electric bill ALONE justifies buying the new LCD, even if
he can fix it for free.
Click to expand...

That depends on how much use it gets.


--
You can't fix stupid. You can't even put a band-aid on it, because it's
Teflon coated.
 
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