Texas Instruments TI-99/4a Repairs
5 x TI-99/4A (PAL) motherboards with various defects repaired
Defect:
- TI-99/4a #1: The metal shield that protects the pcb is loose and some parts create short circuits on the pcb.
- TI-99/4a #2: TMS 9918 (U100) VDP inserted in the wrong way (:/), incredibly it did not burn.
- TI-99/4a #3: TMS 9900 (U600) Dead CPU.
- TI-99/4a #4: TMS 9900 (U600) Dead CPU.
- TI-99/4a #5: Apparently working. (Notes: left ON for over 4 hours did not present any problems)
Gallery of the repair:
Categories: Projects / Repairs, Today, Various
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