choosing a monitor
Sanwa PM1745 Blows 1.6A 250V Fuse
Posted: Mar-28-2012 2:17 PM
Join Date:Mar-28-2012
Post: 3


I think I messed up my Sanwa PM1745 Chassis. It was giving off colors so I pulled it out and reflowed solder to the area that would correct if you pushed on it.

The problem is when I hooked it back up much later, I connected the "CRT/E" wire to the "P1 N" pin on the chassis by mistake. When it powered on you could hear a loud clicking sound thru the speakers. I quickly powered it off to see what happened. After inspecting it, I found out what I did wrong, and found both fuses blown, 1.6A 250V and the 4A 250V. I replaced both fuses and connected the CRT/E wire correctly to the neck board not the chassis. Now it only blows the 1.6A 250V fuse. Upon further inspection, I believe the HOT is bad. I have not been able to find the diagram for this monitor and I am not sure what else could of been damaged by my mistake. So far I think I need a C5143 HOT, which I have not been able to locate.

Does anyone know what else may of been damaged or what else I should check?
Does anyone know where I can get the HOT?
Does anyone have the schematics for this chassis?

Thank you for reading my post.

Posted: Mar-29-2012 12:14 PM
Join Date:Jul-9-2012
Post: 140

I just did a quick search and it looks like a guy on eBay is selling the HOT you need [url][/url] helping people fix arcade monitors and great products.

Posted: Mar-29-2012 5:30 PM
Join Date:Mar-28-2012
Post: 3

Thanks for finding that. Is there anything else I should check prior to swapping out the hot?

Posted: May-2-2012 10:09 AM
Join Date:Mar-28-2012
Post: 3

I received my HOT, but now I need to know what is the lone resistor value which is located on the solder side of the chassis? I can not read the color code and the values are unstable. Not sure if it was added as a later mod or if it came from the factory that way. I can not find it in any diagrams. It is the lone little resistor under the chassis towards the outer edge, middle.

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