Repaired for a friend a Commodore CBM 8296-D Motherboard
This is a Commodore CBM 8296-D Motherboard repaired for a Friend.
Gallery of the repair:
Defect:
- Black screen of death without startup beep and after replacing U5 and U6 black screen of death with startup beep.
Replaced parts:
- Replaced PLA U5 with a original PLA MOS 324745-01.
- Replaced PLA U6 with a OTP EPROM 27C512R 70ns + Adapter
- Replaced a dual FlipFlop 74LS74 UD4.
* The replacement of the two PLA has already been made earlier by my friend.
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