mvs repair schematics ?

MrKitt

n00b
Joined
Sep 14, 2003
Posts
28
If anyone do have a schematics for a MVS board can that person please tell me what kind of Components CR1-CR6 are they should be located on the top right bottom side above the Jamma Connector.
 

MrKitt

n00b
Joined
Sep 14, 2003
Posts
28
i though it should be something like that but my ohm messures gave me strange values so i was uncertain.
do you know the exact name or value of the sip resistors ?
 

MKL

Basara's Blade Keeper
20 Year Member
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Mar 8, 2002
Posts
3,686
The SIP resistors you refer to are only found on 1-slot boards (they're in the input lines) while I only have multi-slots so I can't measure the value for you, sorry. But you can do it yourself: you have to locate the common pin which is marked both on the package itself (usually by a dot) and on the PCB (it's separated from the others). Then you simply measure the resistance between that pin and the others.
 

MrKitt

n00b
Joined
Sep 14, 2003
Posts
28
yeah i know that but the strange thing is that
if i messure from left pin (connected to vcc) i get first leg 1K second leg 1.2K third 1K and on.. thats the confusing part.. i guess the resistors act like some sort of pullup ?
the strangest part is that the last pin is not even connected and its grounded on the board.

think a 1k sip will work ?
 

MKL

Basara's Blade Keeper
20 Year Member
Joined
Mar 8, 2002
Posts
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Yes, 1k. The alternance in values is regular when the sip is in circuit.
 
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