Oddoakd32
New member
HELP! Sanyo 20 constant HV shutdown!!! nothing helps!
Hey guys i really need help i am stumped. When i first got this machine the fuses were blown so i replaced the flyback and it worked. Everything was looking good except the B+ was hard to adjust.
So i replaced the caps. The 2sd1090 voltage regulator. IC601. B+pot and filter cap.
Now whenever i turn it on it makes a low buzzing noise. The voltage at the B+ is 88v. As soon as i adjust it... It goes into HV shutdown. I have 4 other IC601 i have tried them all and they all do the same thing. Fixed broken traces here and there. Resistors .... H.O.T. and same thing. Its so sensitive. I wished i wouldve left it alone after the flyback because it looked amazing. I don't know what else to do or check. I reflowed everything!!! Im not a noob at fixing electronics so this is especially frustrating. I hate asking for help but does anyone have any advice or can point me in the right direction. Or if someone can help me fix it... I would be glad to pay $$$$ thank you everyone!!!! You guys are the best!
Hey guys i really need help i am stumped. When i first got this machine the fuses were blown so i replaced the flyback and it worked. Everything was looking good except the B+ was hard to adjust.
So i replaced the caps. The 2sd1090 voltage regulator. IC601. B+pot and filter cap.
Now whenever i turn it on it makes a low buzzing noise. The voltage at the B+ is 88v. As soon as i adjust it... It goes into HV shutdown. I have 4 other IC601 i have tried them all and they all do the same thing. Fixed broken traces here and there. Resistors .... H.O.T. and same thing. Its so sensitive. I wished i wouldve left it alone after the flyback because it looked amazing. I don't know what else to do or check. I reflowed everything!!! Im not a noob at fixing electronics so this is especially frustrating. I hate asking for help but does anyone have any advice or can point me in the right direction. Or if someone can help me fix it... I would be glad to pay $$$$ thank you everyone!!!! You guys are the best!

