wrongdon
New member
Ok folks, this G07 CBO has me at wits end .It was dead so i installed bob roberts deluxe kit with flyback and it lived but had other issues.After all i have done it still makes a noise that i can change with the H. freq pot and it just won't sync up completely .
Things i have done.
Installed bobs deluxe kit with flyback.
Adjusted B+ to 120.7 and it holds steady.
Did the sync mod,,no change.
Replaced H. freq and V. hold pots.
replaced x301,x302,x401 and x402.
Checked values of all resistors , anything not close to spec got a leg pulled and rechecked.
Reflowed dam near every solder joint on this thing.
Removed new flyback and tried old one,no change.
Banged head on wall,,no change.
The H. freq will let it lock in for a few minutes before it starts scrolling again,it is such a small window of adjustment that locks it.Is there anyway to make this pot less sensitive , a different sized pot,a resistor or cap value change.Of course then i still would have the cricket in there.
Are there any other voltages i could check ?
Thanks all.
Things i have done.
Installed bobs deluxe kit with flyback.
Adjusted B+ to 120.7 and it holds steady.
Did the sync mod,,no change.
Replaced H. freq and V. hold pots.
replaced x301,x302,x401 and x402.
Checked values of all resistors , anything not close to spec got a leg pulled and rechecked.
Reflowed dam near every solder joint on this thing.
Removed new flyback and tried old one,no change.
Banged head on wall,,no change.
The H. freq will let it lock in for a few minutes before it starts scrolling again,it is such a small window of adjustment that locks it.Is there anyway to make this pot less sensitive , a different sized pot,a resistor or cap value change.Of course then i still would have the cricket in there.
Are there any other voltages i could check ?
Thanks all.