Atari ASTEROIDS User Manual

Asteroids
Figure 6 Self-Test Procedure
INSTRUCTION
RESULTS IF TEST
PASSES
RESULTS IF TEST FAILS
1. Set self-test
switch to on posi
tion (see Figure 5).
TV monitor displays
picture as shown in
Figure 7.
RAM FAILURE is indicated by a sequence of from 1 to 6 tones. A low-frequency
tone is heard for each good RAM chip. A much lower frequency is heard for a
failing RAM chip. The sequence stops with the last failing RAM chip. To restart
the sequence, press the Reset pushbutton on the game PCB or set the self-test
switch to off, then again to the on position. Identify the bad RAM chip with table
below. Example: Three tones, then a tone of much lower frequency indicates
failure of RAM chip R4.
TONE#
RAM CHIP LOCATION
D2
E2
M4
R4
N4
P4
ROM/PROM FAILURE is indicated by two columns or lines of numbers in the
upper left-hand corner of the display. The number in the left column or first line
indicates the failing ROM/PROM chip(s). Identify the bad ROM/PROM with table
below.
The number in the right column or second line indicates the failing data bit of
the failing ROM/PROM. Identify the bad bit with the second table below. If more
than one bit is failing, the displayed number(s) are hexadecimal combinations
of the numbers shown below. Examples:
1) If bits D2 and D3 fail, C is displayed.
2) If bits D2, D3 and D7 fail, 8C is displayed.
3) If bits D4 and D5 fail, 30 is displayed.
4) If bits D1, D3, D5 and D6 fail, 6A is displayed
DISPLAYED NO. FAILING ROM/PROM
0
1
N/P3
K4, L4
2
3
F1
F2, L1
F2, H1
L2, L1
4
5
D/E1
H2, J1
H2, J1
M2, M1
6
7
C1
K1, J2
J2, K1
N2, N1
DISPLAYED NO. FAILING BIT
1
DO
2 D1
4
D2
8 D3
10
D4
20 D5
40 D6
80 D7
RAMSEL SIGNAL FAILURE is indicated by a BANK ERROR or PAGE SELECT
ERROR message at lower middle of display.
2. Activate all
control panel and
coin door switches.
When satisfied with
test, set self-test
switch to off posi
tion.
1 PLAYER START
and 2 PLAYER
START LEDs are
lighted. High-
pitched click for
each activated
switch.
1 PLAYER START and/or 2 PLAYER START LEDs not lighted.
High-pitched click sound is not heard for any particular switch.
6

Atari ASTEROIDS Specifications

General

Brand	Atari
Model	ASTEROIDS
Category	Arcade Game Machines
Language	English