Game is completely dead... only GI works.
I saw the game working, minus the displays, when I purchased it.
Got it home and A2P1 basically fell off in my hands when I tried disconnecting the harness.
Bought a "working" power supply but before plugging it in I tested the voltage at the plug
Using pin 3 as the ground I read:
Pin 1 and Pin 2 - 12.5 VDC
Pin 4 and Pin 5 - 15 VDC
Pin 6 and Pin 7 - 75 VDC
I realize those are a little high (esp Pins 6/7) but not sure why or if that's a significant enough difference to cause my issue.
I read the pins on A2P2.
Using pin 5 as the ground I read:
Pin 1 and Pin 2 - something in the millivolt range
Pin 6 - neg (-) 12 VDC
Hmmmm... seems like a bad power supply.
Here's what worrisome to me... almost immediately the diodes CR1 and CR2 get hot enough to be untouchable and now, after taking voltage readings for maybe a grand total of 5 minutes combined, there is an ominous buzzing sound coming from A2.
I WOULD trace the voltage flow (using the schematic) but the buzzing is a little scary. I don't want any caps or diodes to pop in my face.
What's going on?
I saw the game working, minus the displays, when I purchased it.
Got it home and A2P1 basically fell off in my hands when I tried disconnecting the harness.
Bought a "working" power supply but before plugging it in I tested the voltage at the plug
Using pin 3 as the ground I read:
Pin 1 and Pin 2 - 12.5 VDC
Pin 4 and Pin 5 - 15 VDC
Pin 6 and Pin 7 - 75 VDC
I realize those are a little high (esp Pins 6/7) but not sure why or if that's a significant enough difference to cause my issue.
I read the pins on A2P2.
Using pin 5 as the ground I read:
Pin 1 and Pin 2 - something in the millivolt range
Pin 6 - neg (-) 12 VDC
Hmmmm... seems like a bad power supply.
Here's what worrisome to me... almost immediately the diodes CR1 and CR2 get hot enough to be untouchable and now, after taking voltage readings for maybe a grand total of 5 minutes combined, there is an ominous buzzing sound coming from A2.
I WOULD trace the voltage flow (using the schematic) but the buzzing is a little scary. I don't want any caps or diodes to pop in my face.
What's going on?
