Asteroids Deluxe Self Test Error Codes RAM Failure: Indicated by a series of beeps. The game cannot go into test mode. 1 Low L1 2 Lows L1,M1 1 High, 1 Low M1 2 highs, 1 Low M3 2 Highs, 2 Lows M3,R3 3 Highs, 1 Low R3 4 highs, 1 Low N3 4 Highs, 2 Lows N3,P3 5 Highs, 1 Low P3 ROM/PROM Failure: The Self test display will show the location containing the bad ROM chip. If the display shows "garbage" or is blank then the chips at locations N2 and/or J1 are probably bad. BANK ERROR: This error means the X-inverting circuitry is bad. ERROR: This error means the Pokey chip is bad. All switches will produce a beeping noise when pressed in the self test.