Page 59 - WilliamsMidway WPC 91 Schematics 16-9289

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LED List
I
8~
I
I
82
I
I
83
I
U4BGJ
019
020
021
000
CPU Board
CPU Board
01 9 , Blanking
020., Diagnostic
021, +5vdc
At game Turn~On
=
019 & 021 On, 020 Off
During Normal Operation = 019 Off, 020 Flashing, 021 On
LE~
I~I
LED3
00
LE02
LE06
LED4
0
o
LED 1
IIFllSl1
o
Power Driver Board
II
Fl07111Fl0911
IIFlosillF1oli
Power Driver Board
LED 1, +12vdc Switch Circuit, Normally On
LED 2. HighlLow Line Voltage Sensor, Normally On
LED 3, HighlLow Line Voltage Sensor, Normally Off
LED
4,
+Svdc, Digital Circuit, Normally On
LED 5, +20vdc, Flashlamp Circuit, Normally On
LED 6, + 18vdc, Lamps Circuit, Normally On
LED 7, +l2vdc, Power Circuit (motors relays eto.), Normally On
4 -1 1
LEOS
o
II
Fl1111
I
IF11~
I
[§ill
[§ill