Viewsonic fixed but I do not understand

[Dpacro]

I have got a viewsonic n2751w that had no picture.

I found out that the inverter board had a blow little tiny fuse on it a 0.75A 76V.

I also traced out the source of the problem.

One 5V feed that was comming of the controller board was shorted on the inverter board direct to the ground.

I have located a resistance marked with a 0 on it. I think 0 means 0 ohm . They are used to jump but why do they jump a 5v line to the ground ? Does it make any sens at all ?

look at the picture i have pointed out the problem.

because since i have jump the fuse for the test with a very very small copper wire that blow under 1A and also removed the Resistance that was connecting the 5V to the ground . the TV works fine.

I would like to understand how and why ... Pleae

thank you

[Agent24]

Re: Viewsonic fixed but I do not understand

I am not sure and I hope someone else can help you.

But I can say that whatever 0 ohm resistor was there that you removed, was obviously meant to be there (otherwise the TV would never work at all!) - I don't think it will be the cause of your fuse blowing, there will be some other problem.

Replacing a fuse with some wire is not a good idea unless you know it will blow at the same current as the original fuse.

I would not run the TV for any length of time in this state, you may be overheating something etc. You will need to find and fix the original fault.

[Dpacro]

Re: Viewsonic fixed but I do not understand

Its what i want to find out.... but I do not get it. I will definitely replace the fuse by a real one this week.

[Agent24]

Re: Viewsonic fixed but I do not understand

Have you looked for a schematic? Perhaps that will make it make sense..

[Dpacro]

Re: Viewsonic fixed but I do not understand

i do not know where to find the schematics for this TV
Anyone can help ?

[Th3_uN1Qu3]

Re: Viewsonic fixed but I do not understand

I don't think you will be able to find schematics. Anyway... if it works, leave it alone.