Star Tech Journal

5
STAR*TECH JOURNAL/APRIL 1983
BALLY/MIDWAY
SERVICE BULLETINS
* "BABY
PAC-MAN" VIDIOT PCB ADJUSTMENTS
* "BABY PAC-MAN" SCHEMATIC TYPO
*
"BABY PAC-MAN" FLIPPER E.O.S. WIRING
* "CENTAUR" & "SPEAK EASY'' SOLENOID EXPANDER PCBs
GAMf;. "BAB
"BABY PAC- MAN" ARD
SUBJECT
y PAC-MAN"
GAME CT· VlDlOT p .C. BO
ted on the
: TYPOGRAPm
sUBJE • 4 otentiometets loc.:sting Sync,
SCHEMAnc CAL ERROR ON
Thete atili ~idiot Boatd fot ad1 nttols wete
Please note on .1.
Winn di
scnematic #W-1 ')On
centet of e and Blue. These .~o xespective
g agram) th
.
~(thepl,....c.: ld
schemati .
ere is a Printin
"rue
Red. Gxeen b atd so that =e . .J:-g the
O
d to the
Wh
c In the SWitch lllafrix g enor on the
ad d e
an be ma d e w bile avoio.u•
i the monitot.
adjustments c d high voltages o1 ddition is
IS :~~LEFT INSIDE o
• .
f'RUITs 0 ~ ~~_!Witch ~ s shown on
sm all c O nfines an ate xes ult O f this a
awate
f'RUITs O ~ • L.l'Wlt;. Additionall e labeled
The unfo::ce departments a::;nboatds
that manY s
. metets and th
·th no
SWitch s h ~ is 1 shown on r, ~n;~~e .;!ie
of these pot=ed to Bally/Mid:°! :ut of
0U'l'LANE_
e aheled LEFT INsmr
have been te
Sync con o
thet
than
a
faults O
ut these
doubts abo
11
d ·ustment.
a 1 uld you have anY ' hesitate to ca
ad:~ents, ple~~:e!~~et~/3'lJ-'3555-
BallYfMidwCIY~s t_o_u _ _ _ _ _ l l ! ! ! I ! ! ~ ~ - - - - - - - - - - - - - - - - - ,
GAME: "BABY PAC-MAN"
SUBJECT: WIRING OF THE FLIPPER E.O.S. SWITCH
Due to a slight production error, some of the right flipper
end-of-stroke switches were mis-wired on the normally
open switch.
This condition results in the following symptoms:
l. Occasionally the ball will not kick out of the outhole.
2. When the right drop target is down, it is possible for
the game to re-enter the video maze while the ball is
still in motion on the playfield.
To correct these symptoms, make sure the wiring on the
right flipper end-of-stroke switch is the same as in the
following drawing {See Figure #1).
A 'l'TC" & "SPEAK EASY"
.UH
GAME • PINBALLS
XPANDER
SUBJECT: soLE~O~ !1enoid Expand~~;~~
,w.n.. nevet mstalling
es please xem
will
, .... e
th above gatn ' il e to do so
Boatd in . e ftom the boatd. F abt wing on the 43
jutnPe~ ~ : 5-amP, 3AG fuseoth~I games using
xesult ~ ·t Convetsely, ~'-' ·umpet added to
volt clXCUl •
uld have uuS 1
the expandet sho the xelClY contacts.
·de 43 volts to
S· "CENT
ptOVl
MIDDLE LUG SHOULD BE
ANODE SIDE OF DIODE
AND 51 WIRE (WHITE
WIRE WITH RED TRACE)
THE BOTTOM LUG
SHOULD BE 54 WIRE
(WHITE WIRE WITH
GREEN TRACE)
FIGURE #1