Asteroids

[DanP]

Symptom: Blooming screen - G05 801

Action: Measured HV – only 5KV and observed blue sparking
from HV box

Fix: Applied a sealant to HV wire coming out of the
voltage doubler (VD900). This stopped
the HV arcing to the grounded HV box.
HV now at 12KV and blooming gone.

 

[DanP]

Symptom: Buzzing in audio and loud thumping occasionally in sound

Fix: Replace 2N3055 transistor in AR1

 

[DanP]

Symptom: Heavy knock on cab would reset game

Fix: Reflowed solder over suspect joint on AR1 – fixed it.