Play Meter
Issue: 1984 September 15 - Vol 10 Num 17 - Page 7
Letters to
the editor. • •
than 250 nsec will not operate under
the physical and electronic environ-
ment the game was designed for.
This problem is not unique with
Cinematronics. Games by other
manufacturers using EPR OMs may
be subject to the same problem.
The following table shows the
manufacturers and manufacturers'
identifying designation for the Cine-
matronics' Space Ace and Dragon's
Lair games, which must have one of
these types with the exact part num-
ber.
Something on your mind you want to
vent? Got a gripe? Full of praise?
Have a question? If you have
comments on the coin operated
entertainment industry, write to Play
Meter. Our "Letters to the Editor"
columns are dedicated to you, the
operator/ reader.
All letters must be signed; if
requested, only initials will be used or
the name withheld from print. Please
include return address (although, for
the sake of your privacy, addresses will
not be printed.) All letters subject to
standard editing. Be concise.
PLAY METER. September 15, 1984
TI.
AMD
SEEQ
HITACHI
INTEL
Identifying
Part Number
2764JL-25
AM2764DC
2764-25
HN482764G
P2764
F3427010
RobertS. McGowan
Manager, Customer Service
Cinematronics, Inc.
El Cajon, California
Audio VisuQI
Amusements
Different EPROMs
At Cinematronics, Inc., we have
been receiving printed circuit
assemblies for repairs from some of
our distributors that have EPROMs
of a different type from those
originally shipped with the assem-
blies. Many of these unauthorized
substitutions will cause the game to
fail intermittently or have erratic
operation.
An EPROM is a semiconductor
device (chip) that contains the pro-
gram used by the game's micro-
processor to run the game. There
are a large number of different
EPROMs manufactured by many
vendors, and all vendors mark their
parts differently.
The problem exists with the
access time. Cinematronics' Space
Ace and Dragon's Lair require
EPROMs that have an access time of
250 nsec or less. A nanosecond
equals 0.000000001 second. Any
EPROMs which require greater
Manufacturer
Offering the finest
new and used
•
equ1pment
REPRESENTING LEADING FACTORIES
•
SALES, PARTS, SERVICE
•
NEW IN CRATE
(Ni n. ) Donkey Kong 3 $1045
(Ci ne.) Dr~gon 's L~ir (1000 disc) $1595
(Myl. ) M .A .C.H . 3 $1695
(Nin.) Mario Bros . $1095
(N in .) VS System call
(Zaccaria) farfalla $1795
(Nin .) Punch-Out call
YOU'VE TRIED THE REST,
NOW TRY THE BEST
''We're Eager To Serve''
1809 Olive Street
St. Lou is, Missouri 63103
314/421-5100
For further information, call Pete Entringer (collect)
7
the editor. • •
than 250 nsec will not operate under
the physical and electronic environ-
ment the game was designed for.
This problem is not unique with
Cinematronics. Games by other
manufacturers using EPR OMs may
be subject to the same problem.
The following table shows the
manufacturers and manufacturers'
identifying designation for the Cine-
matronics' Space Ace and Dragon's
Lair games, which must have one of
these types with the exact part num-
ber.
Something on your mind you want to
vent? Got a gripe? Full of praise?
Have a question? If you have
comments on the coin operated
entertainment industry, write to Play
Meter. Our "Letters to the Editor"
columns are dedicated to you, the
operator/ reader.
All letters must be signed; if
requested, only initials will be used or
the name withheld from print. Please
include return address (although, for
the sake of your privacy, addresses will
not be printed.) All letters subject to
standard editing. Be concise.
PLAY METER. September 15, 1984
TI.
AMD
SEEQ
HITACHI
INTEL
Identifying
Part Number
2764JL-25
AM2764DC
2764-25
HN482764G
P2764
F3427010
RobertS. McGowan
Manager, Customer Service
Cinematronics, Inc.
El Cajon, California
Audio VisuQI
Amusements
Different EPROMs
At Cinematronics, Inc., we have
been receiving printed circuit
assemblies for repairs from some of
our distributors that have EPROMs
of a different type from those
originally shipped with the assem-
blies. Many of these unauthorized
substitutions will cause the game to
fail intermittently or have erratic
operation.
An EPROM is a semiconductor
device (chip) that contains the pro-
gram used by the game's micro-
processor to run the game. There
are a large number of different
EPROMs manufactured by many
vendors, and all vendors mark their
parts differently.
The problem exists with the
access time. Cinematronics' Space
Ace and Dragon's Lair require
EPROMs that have an access time of
250 nsec or less. A nanosecond
equals 0.000000001 second. Any
EPROMs which require greater
Manufacturer
Offering the finest
new and used
•
equ1pment
REPRESENTING LEADING FACTORIES
•
SALES, PARTS, SERVICE
•
NEW IN CRATE
(Ni n. ) Donkey Kong 3 $1045
(Ci ne.) Dr~gon 's L~ir (1000 disc) $1595
(Myl. ) M .A .C.H . 3 $1695
(Nin.) Mario Bros . $1095
(N in .) VS System call
(Zaccaria) farfalla $1795
(Nin .) Punch-Out call
YOU'VE TRIED THE REST,
NOW TRY THE BEST
''We're Eager To Serve''
1809 Olive Street
St. Lou is, Missouri 63103
314/421-5100
For further information, call Pete Entringer (collect)
7
Future scanning projects are planned by the International Arcade Museum Library (IAML).