Having problems with your HP L1955 19" LCD Monitor ?

Hp monitor turns off after a few hours

\015 Hp L1955 monitor powers on works fine for a few hours, but then goes off, and if turned on again (after a while), it will work fine for a few hours again. The caps are all good on the circuit board. Could anyone help pleas?... \015

Answers :

Hi,

maybe your just having symptoms of circuits problems inside your monitor.

one possibility might be components solder joints seems to fail, one solution might be to have it resoldered.

if the capacitors are all good then most probably the toroidal transformers might be having a cold solder, try resoldering too.

a better way to analyze these is to have a voltage measurement

sometimes there are 4 transistors driving the toroid coils , maybe 2 of them is leaking, a replacement might be necessary to properly
diagnose the circuit.




By meaning goes off do you mean that the screen goes blank but is "ON" or the screen goes "OFF" completely.
\015\012
\015\012In both the cases try changing the data cable alone with a different one and check if the same happens.
\015\012
\015\012Try with a different power cable,
\015\012
\015\012You may also want to upgrade the chipset and the video card drivers from the manufacturer's website.
\015\012
\015\012Update the BIOS as well.
\015\012
Repair Help & Product Troubleshooting for HP L1955 19" LCD Monitor

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