mshaw
Member
Howdy! I've got a WG 19K4914 (in Gauntlet) that is blowing the 4A fuse (F501).
A brief history: Had this game for a few years and red never worked very well on it. So, I figure probably a cracked solder joint, might as well do a cap kit while I'm inside. I did the cap kit, resoldered everything I could, and the game worked great for 2-3 months, nice picture, full color, etc. Then the fuse blew. Then I had to move, so now a year later, I am finally working on the game.
I removed the deflection transistor (Q352) and tested it; all terminals read closed relative to each other, so obviously the transistor was fried. I replaced it with an NTE 98 and replaced the fuse. Fired the monitor up and the fuse blew after first becoming spectacularly orange. I thought I heard deflection chatter initially, but the tube definitely didn't glow. Taking the new transistor out and testing yields results that I am uncertain about thanks to my crappy meter, but it does appear to be blown. Regardless of its status, though, I am assuming that something else is wrong.
One of the two bolts that attaches the bracket on top of the flyback is broken (see the hole on the left in the attachment), but it was already broken when I initially removed the monitor to do the cap kit. Could this have an effect on things? The other bolt is firmly attached and the flyback doesn't seem loose. From what I have seen on the web, it looks like testing a flyback is a PITA to say the least, and often they are rather proprietary, so there isn't a highly specific procedure.
I'm wondering where to proceed at this point:
Remove and attempt testing the flyback?
Just replace it?
Are there other places I could/should be looking?
Also, my once-trusty analog multimeter is very old, and seems to be on its last legs. Any specific (or general) recommendations for a replacement?
Thanks,
Matt
A brief history: Had this game for a few years and red never worked very well on it. So, I figure probably a cracked solder joint, might as well do a cap kit while I'm inside. I did the cap kit, resoldered everything I could, and the game worked great for 2-3 months, nice picture, full color, etc. Then the fuse blew. Then I had to move, so now a year later, I am finally working on the game.
I removed the deflection transistor (Q352) and tested it; all terminals read closed relative to each other, so obviously the transistor was fried. I replaced it with an NTE 98 and replaced the fuse. Fired the monitor up and the fuse blew after first becoming spectacularly orange. I thought I heard deflection chatter initially, but the tube definitely didn't glow. Taking the new transistor out and testing yields results that I am uncertain about thanks to my crappy meter, but it does appear to be blown. Regardless of its status, though, I am assuming that something else is wrong.
One of the two bolts that attaches the bracket on top of the flyback is broken (see the hole on the left in the attachment), but it was already broken when I initially removed the monitor to do the cap kit. Could this have an effect on things? The other bolt is firmly attached and the flyback doesn't seem loose. From what I have seen on the web, it looks like testing a flyback is a PITA to say the least, and often they are rather proprietary, so there isn't a highly specific procedure.
I'm wondering where to proceed at this point:
Remove and attempt testing the flyback?
Just replace it?
Are there other places I could/should be looking?
Also, my once-trusty analog multimeter is very old, and seems to be on its last legs. Any specific (or general) recommendations for a replacement?
Thanks,
Matt
