72Demon
Active member
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 finnally had time, and 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. There is no neck glow. 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. There is no obvious visual damage. So far I think I need a C5143 HOT, which I have not been able to locate. This chassis is totally different then any others I have worked on. My research shows it is compatible with Sanwa 27z21c, Rodotron 666a-29, Wei-ya C31291a. Although I am not positive since some of those are for 29" monitors. This is out of a Namco Classic NFL Football with 27" monitor.
Does anyone know what else may of been damaged or what else I should check?
Does anyone know where I can get the HOT or other parts that may be needed?
Does anyone have the schematics for this chassis?
Thank you for reading my post.
The problem is when I finnally had time, and 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. There is no neck glow. 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. There is no obvious visual damage. So far I think I need a C5143 HOT, which I have not been able to locate. This chassis is totally different then any others I have worked on. My research shows it is compatible with Sanwa 27z21c, Rodotron 666a-29, Wei-ya C31291a. Although I am not positive since some of those are for 29" monitors. This is out of a Namco Classic NFL Football with 27" monitor.
Does anyone know what else may of been damaged or what else I should check?
Does anyone know where I can get the HOT or other parts that may be needed?
Does anyone have the schematics for this chassis?
Thank you for reading my post.