Star Tech Journal

•
December 1991
STAR*TECH Joumal
Beckman
Beckman
DM25XL
DM15XL
Multimeter
Multimeter
MANY FUNCTIONS, NEW LARGE DISPLAY!
NEw MooEL, Low PRICE, LARGE DISPLAY!
• LARGE
• CONTINUITY BEEPER
• BUILT-IN
20
• CAPACITANCE MEASUREMENT To
• RESISTANCE To
• 1 o AMP
• 20
MHZ LOGIC PROBE
2000
20
MFD
1 0A (Ac/De)
200 OHMS To 2000 MOHM
• CURRENT RANGES To
RANGE Ac AND De
• CONTINUITY BEEPER
• DIODE TEST
• TRANSISTOR GAIN MEASUREMENT
$89
$59
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• PO Box 1065, Merchantville,NJ.08t09>
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PQ 13ox 1065, Merchantville, NJ 08109.
Ad ·•••••s•w1Tca1Nc·•••·P•oWER • .• soPf11Es
JAMMA Test Card
New!BestofSTAR*TECHJournal.AllaboutSwitching
Power Supplies. From the very beginning! Switchers are
covered from when they first appeared in our Industry
up to the current models and uses.
Theory and Circuit Analysis. Voltage Measurements,
Substitute Parts and Failure Modes.
Modifications. Getting negative voltages from posi-
tive-only switchers, Identifying power legs on ICs,
Capacitor Replacements.
Troubleshooting. Peter Chou, Condor, Wico, Power Plus,
Nintendo, Sieradn, HiTron, Penn-Ray.
Never before published information outside of our
journals. This info can't be found in any of our current
service manuals.
DESIGNED FOR THE GAMES TECHNICIAN
-----------------
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LCD NUMERALS
MHZ TTL LOGIC PROBE
• RESISTANCE
MEGOHM
(0.7")
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Check out the entire game wiring system
before
you plug in that $1000 game board!
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Name _ _ _ _ _ _ _ _ _ _ _ _ _ _
Company _ _ _ _ _ _ _ _ _ _ _ _ _
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