Re: Samsung SyncMaster 2493HM black screen with power
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized...
McEugene
New Member
Last Activity: 03-05-2021, 08:53 AM
Joined: 07-19-2013
Location: luxembourg
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Re: Samsung 2493hm flashing backlight
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized cap though all...Leave a comment:
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Re: Samsung 2493HM No Backlight
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized cap though all my...Leave a comment:
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Re: Another SAMSUNG 2493HM !
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized cap though all my caps...Leave a comment:
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Re: Samsung SyncMaster 2493HM black screen
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized cap though...Leave a comment:
-
Re: Samsung SyncMaster 2493HM black screen with power
solved case that worked for me after all procedures above failed in my case:
my psu is a BN44-00195A model 245B2 (slightly different part numberingfrom schematics above)
symptom was:
a black screen with blue power light steady on.
5,2V standby power was ok, primary PFC voltage was ok (380V for my european 220V input monitor). but the backlight 24V was not there ...(5.3V was not their either since it is a byproduct of the main 24V output...).
what I did:
A) replaced most polarized...Leave a comment:
-
Re: New Members - please post your introductions here
Hello,
I am sergei, electornics engineer designing all kind of eqipment (RF, RFid and ocassionally needing to fix some kind of hardware I purchased like monitors and other consumer products...Leave a comment:
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