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SECTION 5
BUILT IN DIAGNOSTICS
The built in diagnostics were designed for ease of opera-
tion and thoroughness.
The diagnostics have been
organized in such a way as to allow individual testing of
different areas in the machine. These areas include:
a) CPU Board Self-Test
b) Game Status change
c) Display digits test"
d) Lamps (test 01)
e) Solenoids (test 02)
f) Switches (test
03)
g) Game status display (test
04) '"
"There
are specific subtests in these tests. The different
ways to enter the diagnostics and normal game operation
are shown in Figure
6.
There is also an auto cycle test
which will be discussed later.
DIAGNOSTIC SWITCHES
There are three switches which are used to control the
operation of the diagnostics:
I.
Diagnostic switch (lower pushbutton on CPU)
2. Auto/Manual
(inside coin door)
3. Advance switch (inside coin door)
Pressing the Diagnostic switch on the CPU Board initiates
the diagnostics and causes the CPU to perform three self
tests automatically:
I. ROM/PROM test
2. RAM test
3. CMOS RAM test
If any errors are detected,
the two LEDs on the CPU
Board will light to indicate the specific failure. If all three
tests pass successfully,
the two LEDs will blink twice and
then go off. The diagnostics will then be in GAME
STATUS CHANGE.
SOUND BOARD
Unlike previous solid state games, PHOENIX has no
sound board diagnostics.
Switch SWI on the board is
not operational.
Refer to Section 6J for trouble-
shooting the sound board.
16
CPU BOARD SELF TESTS
ROM/PROM TEST
_
The ROM/PROM test specifically checks the contents o~
CPU Board IC 17, IC 20, IC 21, IC 22 to see if the infor-
mation in the ROM's and the field PROMS is correct. If
the information is incorrect, the bottom LED will light up
and the top LED will be OFF on the CPU Board.
OFF
0
ROM/PROM failure
ON
-lIIL.
."...,
RAM TEST
The RAM test specifically checks the ability of the RAM
IC's 13 and IC 16 to retain information correctly. If the
information is not retained correctly, the CPU Board top
LED will light up and the bottom LED will be OFF.
ON ~-
RAM failure
OFF
0
CMOS RAM TEST
The CMOS RAM test specifically checks the operation
of IC
18
and the ability of the CMOS RAM IC
19
to
retain information correctly.
If the information is not
retained correctly,
both LEDs will light up and stay ON
on the CPU Board.
ON
-.«-
CMOS RAM failure
ON ..,_
, I •
GAME STATUS CHANGE
Following the successful completion of the CPU BoarcA
self tests, the two LEDs blink twice and the diagnosti~'
program enters the game status change area. This is the
only time that changes can be entered as outlined in Sec-
tion 3 of this manual. Replay points, maximum credits,
match features,
etc. can be changed ONLY during this
portion of the diagnostics.
Any changes made to the data
will not be displayed until the game status display (test
04)
described later. After making all game status changes
(if any), press the ADVANCE pushbutton once to go to
the digits test.
NOTE: This section of the diagnostic is the only section
where ALL player and master display digits are
turned OFF. No digits show on the displays until
the next section of the diagnostics is entered by
pressing the ADVANCE pushbutton on the coin
door.