Proview EM190

[sabre504]

HI just need some input to check i am correct .
On the pics i have attached
Red + input
yellow - input

I bought this monitor as the seller said it would not power up ,
when it arrived i was confused to find no DC input jack as i have another one of these i was going to use for parts (slight difference in the main board )
I contacted the seller and from what i can gather he was putting the power plug into the audio input

Opened up the monitor to find no female connection on the main board either so how the hell anybody ran this as a monitor is beyond me unless its scavenged for parts and the wrong ones put back in.

I just wanted to check that i am correct as i am going to solder wires straight to the board for now to run tests to see if it actually works before i buy in a dc jack set .

Any input welcome

[brethin]

Re: Proview EM190

A pic of the backside of the monitor would help (pics of the board inside dont help for your question). My guess is someone changed the board inside with a board with no jack (not unheard of to sell to look complete). That monitor clealy needs a 12v PSA.

[sabre504]

Re: Proview EM190

Hi i know it needs 12v 5a was just trying to confirm which would be positve and which negative inputs on the board as the other one i have has a different power input its a 2 pin .

If and when i do fit a jack plug set its going to have to be mounted on the chassis and wires run to the board as it will be to far into the case to use a female jack on the board (if that makes sense)

[alexanna]

Re: Proview EM190

Look for a power plug on the blue VGA cable where it connects to the video card on your computer

[sabre504]

Re: Proview EM190

Thanks Alexanna but that was the second place i looked as i know some of the older monitors i have seen have had them attached in that way ,
but no joy

[Rtech]

Re: Proview EM190

All the External Power Supply models I have seen, have an Electrolytic cap very close to the input socket,so the cap -ves are very likely to be the input -ve as well..there may also be a diode very close, just in case a PSU with the wrong polarity is plugged in.

[sabre504]

Re: Proview EM190

Well Alexanna you were right .
The power input point is supposed to be in the vga cable plug .

After you had said to look there i decided to take a closer look at the cable itself on the end that plugs into the main board sure enough there are a black and a red wire .

Blue plug end is not a sealed unit as normal its a self fit type opened it up and bingo 2 snipped wires red and black .

So now all i have to do is tap in at the board end for a dc jack plug to mount
on the back plate and then see if the monitor works.

Thanks for the input everybody .