Mentor Colour 6 (Pong clone) has been Repaired
- Black screen of death.
- No sound.
The problem of the power supply has been fixed by replacing the transitor CS 9013 that is used in a very bizarre way to lower the voltage from 9v to 6.85v. The problem of the audio was always caused by a transistor CS 9013 brutally in short circuit. In this case, the transistor is used like a amplifier.
The transistor CS 9013 can be replaced with a BC 337 that it’s equivalent.