background image

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. If no sound is produced either the Sound ROM, input power, or other Sound 
Board circuitry is faulty. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

"Warning: This equipment generates, uses, and can radiate 
radio frequency energy and if not installed and used in 
accordance with the instructions manual, may cause 
interference to radio communications. As temporarily 
permitted by regulation it has not been tested for 
compliance pursuant to Subpart J of Part 15 of FCC Rules, 
which are designed to provide reasonable protection against 
such interference. Operation of this equipment in a 
residential area is likely to cause interference in  which 
case the user at his own expense will be required to take 
whatever measures may be required to correct the 
interference."

 

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

Page 1: ...AL 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...

Page 2: ...t chute coins 2 To raise Function number on CRT operate ADVANCE pushbutton with switch set to AUTO UP To lower Function number operate ADVANCE with it set to MANUAL DOWN 3 With desired Function indicated raise adjustment value by operating HIGH SCORE RESET with switch set to AUTO UP 1ower value by operating HIGH SCORE RESET with it set to MANUAL DOWN Value left on CRT is new setting For values see...

Page 3: ... settings by adjusting only Function 10 For other price settings set Function 10 to 00 and set Functions 11 through 16 to the values indicated in the chart Table 1 Standard and Custom Price Settings 7 To restore factory settings and zero audit totals a Operate HIGH SCORE RESET in AUTO UP to indicate 45 on CRT for Function 28 b Depress ADVANCE The game returns to Audit Function l c Set switch to MA...

Page 4: ...C8 IC9 IC10 IC11 IC12 RAM DIAGNOSTICS TEST 2 From ROM Diagnostics depress ADVANCE in AUTO UP RESULT CRT INDICATION LED INDICATION CORRECTIVE ACTION TESTING Random Pattern Depress ADVANCE in AUTO to bypass test PASS ALL RAMS OK l 1st LED blinks twice FAIL RAM FAILURE xy l 1st LED lights Replace RAM see following or depress ADVANCE in MANUAL DOWN x Bank y Chip No Bank Indicated l 1 l 2 l 3 Depress A...

Page 5: ... BLUE Band of magenta Band of blue intensity variance or washout 4 LIGHT GREEN Band of green Band of dark green or washout 5 GREEN Band of light green Band of faint green Band of darker green 6 DARK GREEN Band of washout CRT SEQUENCES THROUGH 8 COLOURS 2 SECONDS EACH VERTICAL BAND INDICATES COLOUR RAM FAULT l 4TH LED REMAINS LIT DURING TEST Note that a blank sequence or two sequences with same sha...

Page 6: ...ENTA The color bar pattern is also analyzed to detect color RAM faults If Color RAM Test 4 indicates no faults a double width band half width bands transposition or missing bands indicates a fault in 2E 1C or 2C chips To return to game over l Depress ADVANCE in AUTO UP Audit function 1 is displayed 2 Set switch to MANUAL DOWN and depress ADVANCE Special Adjustment Function 28 is displayed 3 Set sw...

Page 7: ...This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions manual may cause interference to radio communications As temporarily permitted by regulation it has not been tested for compliance pursuant to Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference Operation ...

Reviews: