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2 x Texas Instruments TI-99-4A Repair

Texas Instruments TI-99-4A Repair

Texas Instruments TI-99/4A Repair (1 of 2)

Defect:

  • Black Screen and deafening sound in background.

Replaced parts:

  • 1 x TMS 4732/2532 ROM (U611)

Gallery of the repair:

Texas Instruments TI-99-4A Repair Texas Instruments TI-99-4A Repair

 

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Texas Instruments TI-99-4A Repair

Texas Instruments TI-99/4A Repair (2 of 2)

Defect:

  • Garbage Screen.

Replaced parts:

  • 1 x TMS4116-20 RAM (U103).

Gallery of the repair:

Texas Instruments TI-99-4A Repair Texas Instruments TI-99-4A Repair Texas Instruments TI-99-4A Repair

 

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DownloadTI99 Technical Manual (115)

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