Missile Command - Atari 1980

Picked this up on 2/26/2012 in Parker, CO. 42,547 on the coin counter. Looks in pretty good shape, with a recapped G07 monitor. Could use an AR2 rebuild and a little lube on the trackball rollers but works great! Just needs an overall cleaning. The power switch is missing, so I'll order a replacement for that as well.

Repair Log:

3/2/2012 Replaced marquee bulb (F15T12/CW) and starter (FS-2). Marquee light works!

3/11/2012 Replaced Big Blue capacitor in the power supply.

3/22/2012 Recapped AR/2 board.

4/11/2012 Rebuilt trackball with new rollers (2) and bearings (5).

4/13/2012 Installed the Braze multigame/hs save kit (adds Super Missile Attack).

5/4/2012 Sound is still a bit crackly, replaced the 2 audio amps (TDA2002) on the AR2 board, as well as the 3 voltage regulators. No difference. Next suspect is the LM324 chip on the game pcb. -5V is running ~-1.2V. Possible power prob or short on a -5V component.

5/10/2012 Replaced the 4 rectifier diodes on the AR2-03. No change to -5V power running low.

5/12/2012 Socketed and replaced the LM324 chip (no change to sound). No change to -5V power running low.

6/14/2013 Started testing the -5v components to find out which was shorted. Noticed C36 capacitor was damaged. Replaced with 220pf ceramic disc cap and it fixed the low -5v and related sound issue. -5V line now reads -5.3V.

Missile Command Front View

Missile Command Game PCB:

Here's the monitor - G07 CBO:

This is an inside shot of the coin door. Missing the coin box, may try thearcadeboneyard.com to see if they have one:

The AR2-03 board - full view:

AR2 closeup view. Note the main capacitors are 4700uf, they should be 3300uf. Bob Roberts rebuild kit is in order:

AR2 closeup view 2:

Power supply unit. Going to order a rebuild kit from BR including big blue cap:

3/11/12 New Big Blue capacitor on the power supply:

3/11/12 Bottom of power supply:

Here's the trackball with the original rollers and bearings:

Here's the rebuild at the mid point. Roller and bearings on right have been replaced, left is still original.

Here's the completed rebuilt trackball:

Here's the 6502A before installing the multigame kit:

4/13/12 Installed the Braze multigame kit to add Super Missile Attack and high score saving for both games:

6/14/2013 Found a bad glass cap C36 that was damaged potentially causing the -5V short

6/14/2013 Removed the cap and tested it, it was shorted

6/14/2013 Replaced it with a 220pf ceramic disk cap and it fixed the short and related sound issue. -5V line now reads -5.3V