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Williams Electronics Defender 16P-3001-103 R-T Operation Manual

Williams electronics inc. games specification sheet
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This booklet provides operation, auditing, adjustment, and diagnostics for DEFENDER.
POWER TURN ON
With power first applied, a sound is produced, general illumination comes on, and random
patterns appear on the CRT as the game sequences through RAM, ROM, and battery checks.
The game then comes up in game over. Messages are displayed for RAM or ROM failures;
refer to Power Up and Reset RAM/ROM Tests. If the game comes up in Bookkeeping, turn the
game OFF and back ON.
a.
If the game now sequences through the tests and then comes up in game over, the
bookkeeping totals have been reset to zero.
b.
If the game still comes up in bookkeeping, open coin door and turn the game OFF and
ON. The game will now sequence through the tests and come up in bookkeeping. This is an
indication of battery failure and the game has reverted to factory settings. To return to
game over:
1. Set switch to MANUAL-DOWN.
2. Depress ADVANCE to display Function 28.
3. Set switch to AUTO-UP and depress ADVANCE.
GAME OPERATION
GAME START - Insert coins - credits are displayed on CRT. Press 1 or 2-player start.
PLAYER CONTROLS
UP-DOWN Switch – maneuvers player ship.
REVERSE Switch - reverses player ship direction.
THRUST Switch - controls player ship speed.
FIRE Switch - activates laser gun.
HYPERSPACE Switch - warps rocket to another quadrant, danger of possible annihilation.
SMART BOMB Switch - destroys all alien ships on screen.
GAME PLAY
Destroy alien ships and missiles. Rescue humanoids, pick them up, and return to surface.
Destroy all enemy ships for humanoid bonus and additional alien waves. Bonus ships and
Smart Bombs provided every 10,000* points.
HIGH SCORE SIGNATURE
Use UP/DOWN to select letters and FIRE button to lock in letter.
CREDITS IN GAME
Twenty or less credits are retained in memory after power down.
game post 21 or more credits and depress ADVANCE in AUTO-UP two times in succession.
Credits are also removed any time Function 28 is changed.
* Indicates adjustable features.
16P-3001-103 R-T
July, 1981
A maximum of 3* per play.
To remove credits from

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  Summary of Contents for Williams Electronics Defender 16P-3001-103 R-T

  • Page 1 This booklet provides operation, auditing, adjustment, and diagnostics for DEFENDER. POWER TURN ON With power first applied, a sound is produced, general illumination comes on, and random patterns appear on the CRT as the game sequences through RAM, ROM, and battery checks. The game then comes up in game over.
  • Page 2 BOOKKEEPING AND EVALUATION TOTALS (Functions 1-7) In game over mode, set switch to AUTO-UP and depress ADVANCE. The CRT indicates Function 1 and total left chute coins. Records audit totals and depress ADVANCE for functions 1-7. To review a total that has been advanced past, set switch to MANUAL-DOWN and depress ADVANCE.
  • Page 3 COIN DOOR MECHANISM All USA Variants 1DM, 5DM 20-Cent, 50-Cent 1 Franc, 5 Franc 25 Cent, 1 Guilder 5 Franc, 10 Franc 1 Franc, 2 Franc 100 Lire, 200 Lire Twin Coin 1 Unit, 5 Unit Indicates standard price settings by adjusting only Function 10. For other price settings, set Function 10 to 00 and set.
  • Page 4 ROM DIAGNOSTICS – TEST 1 From game over, depress ADVANCE IN MANUAL-DOWN. RESULT INDICATION PASS ALL ROMS OK ROM FAILURE FAIL (x=ROM No RAM DIAGNOSTICS – TEST 2 From ROM Diagnostics depress ADVANCE in AUTO-UP. RESULT INDICATION TESTING PASS ALL RAMS OK RAM FAILURE FAIL y=Chip No)
  • Page 5 CMOS RAM DIAGNOSTICS – TEST 3 From RAM Diagnostics depress ADVANCE in AUTO-UP. RESULT INDICATION CMOS RAM TEST PASS PASSED CMOS RAM FAIL FAILURE INTERLOCK FAILURE COLOUR RAM TEST – TEST 4 From CMOS RAM test depress ADVANCE in AUTO-UP. CRT SEQUENCES THROUGH 8 COLOURS, 2 SECONDS EACH VERTICAL BAND INDICATES...
  • Page 6 SWITCH TEST – TEST 6 CRT indicates AUTO-UP closed and any stuck switches. Set switch to MANUAL-DOWN and clear any stuck switches. CRT should indicate no switches closed. Operate switches and check for display of switch name. Coin Door ADVANCE HIGH SCORE RESET LEFT COIN CENTER COIN...
  • Page 7: Sound Board Diagnostics

    SOUND BOARD DIAGNOSTICS Depress DIAGNOSTIC pushbutton on the bottom of the Sound Board. A check is made of the Sound ROM and sounds are produced if the check is good. If sounds are produced but not produced in Audio Test 5 check for ROM board PIA outputs on Sound Board inputs that is stuck low.

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Defender