pinbotler
Member
Looking for some fresh wisdom on my brand new Battlezone. Picked up two weekends ago on an overnight trip. The board is verified working with my trusty o-scope. The Electrohome G05-802 had vertical collapse. So replaced three frame mounted transistors and verified no continuity; also new cen-07. Reflowed all my plugsand checked the rest of the big transistors.
Restarted it now I get no spot killer but just a green glow on the tube mask. REading on found out likely reason is vectors being drawn off the face of the tube so just see the glow. Fine I figure. Sounds like a bad resistor in the deflection circuit so a testing I go. Using my cocktail Asteroids DX deflection board for comparison verified all the resistors and the rest of the transistors in circuit. Now kind of at a dead end recapped both boards and high voltage and deflection seem good. Cannot find any cold solder joints and reflowed all the suspects.
From here I am going to re-verify my high voltages and make sure my HV diode is still working. After that not sure what else to do short of replacing components one by one. In Canada so shipping anywhere for repair is a beast. I rebuilt my amplifone and WG6100 not sure why this one is managing to beat me down. Just hoping for a random piece of insight here. Oh and I loved Battlezone back in the day so stoke to have this. Thanks in advance.
PS this is an issue 5 deflection and the r100 and 101 already gone.
Restarted it now I get no spot killer but just a green glow on the tube mask. REading on found out likely reason is vectors being drawn off the face of the tube so just see the glow. Fine I figure. Sounds like a bad resistor in the deflection circuit so a testing I go. Using my cocktail Asteroids DX deflection board for comparison verified all the resistors and the rest of the transistors in circuit. Now kind of at a dead end recapped both boards and high voltage and deflection seem good. Cannot find any cold solder joints and reflowed all the suspects.
From here I am going to re-verify my high voltages and make sure my HV diode is still working. After that not sure what else to do short of replacing components one by one. In Canada so shipping anywhere for repair is a beast. I rebuilt my amplifone and WG6100 not sure why this one is managing to beat me down. Just hoping for a random piece of insight here. Oh and I loved Battlezone back in the day so stoke to have this. Thanks in advance.
PS this is an issue 5 deflection and the r100 and 101 already gone.

