Williams Sinistar Instructions Service Manual

9 Bookkeeping Totals
1. In Game-Over Mode, open the cashbox and depress
the cashbox advance switch.  The advance switch
located on the diagnostic switch bracket can also be
used.  (See Figure 1.)  The CRT should indicate all
bookkeeping and evaluation totals.  If so, go to step 3.
If the CRT display comes up in the ROM test, perform
step 2.
AUTO-UP
HIGH
SCORE
RESETMANUAL
DOWNADVANCE
Figure 1.  Coin Door Button Switches
2. Continue to depress the cashbox advance switch,
stepping the game through test...

10
Figure 3. Game Adjustments
Showing factory settings
HIGHEST SCORE SIGNATURE
The number of letters allowed the highest scoring player for
entering his name can be varied from 3 to 20 and is
recommended as 3.  If objectionable words are entered as
the signature name, you can change the lettered entry
leaving the highest score the same.  See SETTING
HIGHEST SCORE NAME.
RESTORE FACTORY SETTINGS
1. Position cursor on RESTORE FACTORY SETTINGS.
2. Push FIRE button.
3. Depress ADVANCE twice.
RESETTING HIGH...

11
Table 1.  Game Pricing
Coin Door
MechanismCredits/
MoneyPricing
SelectionLeft
Slot
UnitsCentre
Slot
UnitsRight
Slot
UnitsUnits
Per
CreditUnits
Reqd
For
Bonus
CreditMin
 Units
For
Any
Credit
•
•• • 
1/25¢, 5/$10141140
•
•• • 
2/50¢, 5/$10141142
•
•• • 1/25¢, 4/$13141100
•
•• • 
2/50¢, 4/$10141102
•
•• • 
1/50¢, 3/$1, 4/$1.25031234150
•
•• • 
1/50¢, 3/$1, 7/$20 124812149624
•
•• •  1/50¢, 3/$1, 6/$21141240
Twin Quarter
Quarter, Dollar, Quarter
•
•• • 1/50¢5141200
1DM, 5DM
•
•• • 1/1DM, 6/5DM2601100...

12
SAMPLE SETTINGS
Before adjusting EXTRA SHIPS settings, review the chart to see how they affect the extra ship score.
LET
FIRST EXTRA SHIP AT = F
ADDITIONAL EXTRA SHIP POINTS FACTOR = A
EXTRA
SHIPFORMULA
1F = 10,000
A = 0000F = 10,000
A = 10,000F = 30,000
A = 10,000F = 10,000
A = 30,000
1st  F 10,000 10,000 30,000 10,000
2nd2F + 1A 20,000 30,000 70,000 50,000
3rd3F + 3A 30,000 60,000 120,000 120,000
4th4F + 6A 40,000 100,000 180,000 220,000
5th5F + 10A 50,000 150,000 250,000 350,000
1This series is...

13
CHAPTER 3  Troubleshooting Procedures
Introduction
Power-Up Tests
+5v DC Power Supply Adjustments
Self-Diagnostics
Diagnostic Mode Tests
Sound Board Diagnostics
CMOS RAM Data Test Protocol 

14
INTRODUCTION
Certain types of game malfunctions may inhibit the games
diagnostic or display faculties.  Troubleshooting procedures for
most of these types of malfunctions as well as malfunctions that
permit self-diagnosis are covered below.  Our troubleshootingalgorithm begins with 
Power-Up and continues until 
Game Over
Mode.  All procedures can be performed with minimal test
equipment or merely by observing the game itself.
POWER-UP TESTS
NO GENERAL
ILLUMINATIONNO INITIAL VIDEO
(RUG...

15
Figure 4. RAM Location and Numbering on the CPU Board & ROM Board RAMs
+5v DC Power Supply
Adjustments
Before adjusting the voltage output
, always check the
output at the supply for AC hum.  This hum should never
rise above 0.005v on the +5v DC supply.  If it does, consult
your schematic drawing set for proper DC voltages
throughout the circuit.
Test for these with the DC setting of your multimeter.  Make
a second check using the AC setting.  Pay particular
attention to readings at TP5 (top of...

TROUBLESHOOTING PROCEDURES:
DIAGNOSTIC MODE TESTS
TEST ROM BOARD LEDs
RECOGNIZE
CONDITIONROM BOARD LEDs
IDENTIFY
CHIPSVIDEO REMEDY
ROM “2” means ROM error 2-digit ROM chip
number“ROM ERROR” and ROM chip
number.(1) Turn power off.
(2) Replace suspected chip.
RAM “1” means RAM error Bank number first,
then chip number in
bank (see figure 4)
*(For RAM Error 41
or 42 See Note)“RAM ERROR” followed by
RAM bank number and chip
number (Note: with multiple
RAM failures this display may
not appear) *(1) Check for...

MORE DIAGNOSTIC MODE TESTS
TEST & PROCEDURES VIDEO SEQUENCES REMEDY OR ADJUSTMENT
REPLACE RAM 1B REPLACE RAM 2B
1)  light red screen
2)  red screen
3)  dark red screentoo-light or
too-dark red
or grey bandmagenta band
4)  light green screen
5)  green screen
6)  dark green screenyellow band cyan band
7)  light blue screen
8)  blue screenmagenta band too-light or too
-dark blue or
grey band
4)  light green screen green band dark green band
or grey band
5)  green screen light green band dark green band
or...

SOUND BOARD DIAGNOSTICS
SYMPTOM TEST & PROCEDURES
  CHECK SOUND SELECT INPUTS
TEST TOOL CONDTION & REMEDY
Sound board connector
10P3/J3-2 to 7Logic Probe (Game on
and in test 4)•  PULSING - Proceed.
•  LOW - check jacks, foils.
•  STILL LOW - Perform ROM
board checkbox below.
SR1 DIP resistors
R3 to R9VOM - Reading ohms
(game off)•  ALL 4.7K - Proceed.
•  ANY OPEN - replace SR1.
C3 to C9 VOM - Reading ohms
(game off)•  ALL OK - Proceed.
•  ANY SHORTED - replace bad.
IC 5-1, IC 7-14
(power pins)Logic...