Got a DATA EAST Tommy pin and is showing half graphics. made the usual voltage testing and everything ok except the Pin 2 shows 92v bit out of range
count the problem be on the DMD?
Pin 1: -125 volts (-110 to -130 volts); OK
Pin 2: -113 volts (-98 to -118 volts); 92v
Pin 3: Key
Pin 4: Ground
Pin 5: Ground
Pin 6: +5 volts (4.9 to 5.2 volts) OK
Pin 7: +12 volts (10 to 14 volts) OK
Pin 8: +62 volts (58 to 68 volts) OK