Commodore 64C (ASSY 250469) Repair (1 of 12)

Defect:

• Black Screen.

Replaced parts:

• 1 x MOS 6526 (U1)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (2 of 12)

Defect:

• Black Screen.

Replaced parts:

• 2 x TMS 4464 (U10/U11)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (3 of 12)

Defect:

• Black Screen.
• Keyboard Dead.

Replaced parts:

• 2 x TMS 4464 (U10/U11)
• 1 x MOS 6526 (U1)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (4 of 12)

Defect:

• Black Screen.

Replaced parts:

• 2 x TMS 4464 (U10/U11)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (5 of 12)

Defect:

• Startup Screen (only paper/border) without Basic startup text.

Replaced parts:

• 1 x MOS 6526 (U1)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (6 of 12)

Defect:

• Black Screen.

Replaced parts:

• 1 x TMS 4464 (U10)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (7 of 12)

Defect:

• Black Screen.

Replaced parts:

• 2 x TMS 4464 (U10/U11)
• 1 x MOS 901225-01 (U5)

Gallery of the repair:

Commodore 64C (ASSY 250469) Repair (8 of 12)

Defect:

• Black Screen.

Replaced parts:

• 2 x TMS 4464 (U10/U11)
• 1 x MOS 6526 (U1)

Gallery of the repair:

Commodore 64 (ASSY 250466) Repair (9 of 12)

Defect:

• Black Screen.

Replaced parts:

• 2 x TMS 4464 (U9/U10)

Gallery of the repair:

Commodore 64 (ASSY 250407) Repair (10 of 12)

Defect:

• Black Screen.

Replaced parts:

• 1 x 74LS257 (U13)

Gallery of the repair:

Commodore 64 (ASSY 250425) Repair (11 of 12)

Defect:

• Black Screen/No Raster.

Replaced parts:

• 1 x MOS 8701 (U31)

Gallery of the repair:

Commodore 64 (ASSY 250407) Repair (12 of 12)

Defect:

• Black Screen/No Raster then random chars instead of normal boot text screen.

Replaced parts:

• 1 x MOS 6569 (U19)
• 1 x TMS 4164 (U12)
• 1 x MOS 901225-01 (U5)

Gallery of the repair:

This is what remains of the repair: