The problem: Resistor (R6) burns out if the chasis is connected to the tube.
Background info: The cabinet is a Z-shaped dynamo cab. I had to replace the power supply completely and had it running with no problems for a while. All of the sudden, my fuses start to blow as soon as I plug in the cab.
I played around a bit with the power connections, and found out the problem was the chasis. Power supply fuse blew if the chasis was powered on (with or without tube attached).
I did some research online and found that D-19 to D-23 could be the cause of the problem. I tested those, and found D-21 to the shorted.
I replaced D-21 with a 1N4007 diode (listed on the site I found the info about the diodes) and I could connect the power supply to the chasis (no monitor) without issues. The fuses did not blow and I had power going on the chasis.
I tested the "green" connector that goes to the tube (6 pins). I was getting about 350 volts coming out of 5 of those (one of the middle ones was the ground pin). I assume that is what the tube needs in regards to voltage... However, as soon as I connect the tube to the 6-pin connector, resistor R6 burns instantly on the chasis.
I tried replacing it, thinking that maybe the first one was bad, but the same thing happened again. - R6 is listed on the manual as 33E, 1.5A, 5% (I assumed 33E was 33Ohms)
I can connect everything else on the chasis and nothing goes wrong. but as soon as I power on the system with the tube powered on (green connector) R6 burns out.
Any tips would be greatly appreciated. For the most part I have NO idea of what I'm doing with the chasis. I just tested/replaced what I was told could be a problem, not because I knew what any of it did... I got my first arcade a couple months ago, so that's all the experience I have.
Anyone know what the problem might be and how to fix it?
Thanks!
Background info: The cabinet is a Z-shaped dynamo cab. I had to replace the power supply completely and had it running with no problems for a while. All of the sudden, my fuses start to blow as soon as I plug in the cab.
I played around a bit with the power connections, and found out the problem was the chasis. Power supply fuse blew if the chasis was powered on (with or without tube attached).
I did some research online and found that D-19 to D-23 could be the cause of the problem. I tested those, and found D-21 to the shorted.
I replaced D-21 with a 1N4007 diode (listed on the site I found the info about the diodes) and I could connect the power supply to the chasis (no monitor) without issues. The fuses did not blow and I had power going on the chasis.
I tested the "green" connector that goes to the tube (6 pins). I was getting about 350 volts coming out of 5 of those (one of the middle ones was the ground pin). I assume that is what the tube needs in regards to voltage... However, as soon as I connect the tube to the 6-pin connector, resistor R6 burns instantly on the chasis.
I tried replacing it, thinking that maybe the first one was bad, but the same thing happened again. - R6 is listed on the manual as 33E, 1.5A, 5% (I assumed 33E was 33Ohms)
I can connect everything else on the chasis and nothing goes wrong. but as soon as I power on the system with the tube powered on (green connector) R6 burns out.
Any tips would be greatly appreciated. For the most part I have NO idea of what I'm doing with the chasis. I just tested/replaced what I was told could be a problem, not because I knew what any of it did... I got my first arcade a couple months ago, so that's all the experience I have.
Anyone know what the problem might be and how to fix it?
Thanks!
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