How I repair a PERX 17inch monitor.

This is the first time I come across this brand monitor.
The model is 17M121B
I believe it is made in CHINA.
There's no power indicator outside the panel.
When I applied power, I can hear a soft tic tic sound.
Opening up the cover, I noticed it has a samsung mother board attached inside.
The power supply ic is DP704c.
The horizontal output transistor is C4997
The voltage on the reservoir capacitor seems right at 318voltdc.
Found voltage at the secondary seems to be fluctuating.
Further checks shows that the horizontal output transistor shorted.
Replacing it seems to solve the problem.
Put it on soak test for a day and it seems working fine.
Sometimes we need to change only one component.
I will put up a link for component testings soon.
It will on my main website.