About six years ago, I bought one of the AA Phase Pistol and Communicator sets and modified them, adding a laser diode + 2 LEDs to the phase pistol's emitter and replacing the green LED in the comm with a blue one.
However, in the intervening time, one of the phase pistol functions no longer works. Normally, when the pistol is opened and a power cell inserted, the power cell lights up for a while. Closing the pistol then allows it to be "fired" with lights and sound.
The power cell illumination on mine has failed, and I set about trouble-shooting today. Disassembling the toy, I verified that the LEDs, micro-switch, and wiring are all good. Moving to the circuit board, I verified that all resistors, capacitors, and diodes check out too. At this stage, it seems that the electronics are (partially) fried. Is anyone here familiar enough with the electronics on this toy to suggest other things I should check? If all else fails, where can I get a replacement sound board?