yorkshire_spam
Active member
- Credits
- 765CR
My Asteroids PCB was running fine on the bench, but fitted to the cab - nothing.
I noticed the +5V LED wasn't too bright, so I checked the +5VDC at the PCB - about 2.5 volts!
I checked the +5V at the AR PCB - 2.6V with the PCB connected, 6.3V without.
I pulled the AR board and desoldered the TIP32 and 2n3055 transistors.
the TIP32 tested fine out of circuit but the 2n3055 was dead. I scavenged a good transistor of a spare ARIII I had.
Back up and running!
I noticed the +5V LED wasn't too bright, so I checked the +5VDC at the PCB - about 2.5 volts!
I checked the +5V at the AR PCB - 2.6V with the PCB connected, 6.3V without.
I pulled the AR board and desoldered the TIP32 and 2n3055 transistors.
the TIP32 tested fine out of circuit but the 2n3055 was dead. I scavenged a good transistor of a spare ARIII I had.
Back up and running!