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Pinouts for "Tempest" (Atari, 1980)
P20: 44-pin edge connector
component side solder side
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GND A 1 GND
+5V B 2 +5V
C 3 +22 VDC
D 4 -22 VDC
COIN R E 5 SLAM
COIN C F 6 COIN L
H 7 SELF TEST
J 8
K 9 BLUE
GREEN L 10 RED
R/G/B GND M 11
COIN CTR R N 12 COIN CTR L
COIN CTR C P 13
R 14 +10.6 VDC
Y INVERT S 15 X INVERT
X OUT T 16 X GND
Y GND U 17 Y OUT
~RESET V 18
W 19
X 20
+5V Y 21 +SENSE (+5V)
GND Z 22 -SENSE (-5V)
P18: 30-pin edge connector
component side solder side
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GND A 1 GND
+5V B 2 +5V
C 3 +22VDC
AUDIO- D 4 -22VDC
E 5 AUDIO+
~RESET F 6
H 7
DIR J 8
CLK K 9 FIRE
L 10 ZAP
P2 START M 11 P1 START
N 12 P1 LED
P 13 P2 LED
+5V R 14 +5V
GND S 15 GND
Notes:
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- If you're converting Tempest to run in a cabinet with a horizontal
monitor, you can get the game to display correctly by switching the
X-OUT and Y-OUT pins, and/or grounding the X-INVERT and Y-INVERT pins.
- Once you've got the game displayed correctly, you can then fiddle with
the XSIZE and YSIZE pots on the main board to resize the picture until
you get something you like.
- This doesn't work on all monitors, so your mileage may vary, not only
from monitor to monitor, but from board set to board set. Tempest can
be very finicky about which hardware it'll co-operate with.
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