Welcome, Guest. Please login or register.
May 09, 2024, 09:15:24 AM

Login with username, password and session length
* Home Help Arcade Login Register
.
+  Forum
|-+  **Reel Slots** Gaming Machines
| |-+  Bally Reel Games. (Moderator: a69mopar)
| | |-+  Exploding EPROMs		 0 Members and 1 Guest are viewing this topic. « previous next »
Pages: [1] Go Down Print
Author Topic: Exploding EPROMs  (Read 3321 times)
jdkmunch
Senior Full time Member.
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 624
Offline Offline

Gender: Male
Posts: 2640
« on: February 17, 2009, 05:58:31 PM »
I just got my GQ-4X programmer and have a few questions.   

I read that reading a 5500/6000 personality chip the wrong way can damage it.   Is there anything I need to know before trying to read these chips?  I would like to make backups.
Logged
channelmaniac
Surface mount soldering geek
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 568
Offline Offline

Gender: Male
Posts: 2126


Few things are better than fixing an old game...


WWW
« Reply #1 on: February 17, 2009, 06:04:52 PM »
Just make sure you have the programmer set for the correct chip type and that you insert it properly.

EPROMs generally have their power and ground pins on opposite corners. This means that if you insert them backwards you are applying voltage backwards. This is what damages the chip.

RJ
Logged
I have too many hobbies! Electronics, gunsmithing, Miatas, arcade games, metal detecting, etc...

http://www.arcadecomponents.com
jay
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 483
Offline Offline

Gender: Male
Posts: 3178


if you cant afford to lose you cant afford to win
« Reply #2 on: February 17, 2009, 06:29:40 PM »
Not being terribly strong in electronics.... but it would seem to me that they could eliminate a lot of damage if they simply built in a diode to the chips that controlled the flow of electricy.

Ideally putting power on the top 2 pins would make the most sense, along with adding a dud set of pins to the other end.
That way if you put them in backwards you would not be able to do damage.
I know that this would change the way burners are built, take up extra space, erode sales of chips etc etc.

Comments ?

Or they could just put a notch on one end of the chip and assume anyone who was handling the chip was not a dumbass and knew what they were doing ..... oh wait...  frying pan
Logged
The only way to beat the casino is to own it
jdkmunch
Senior Full time Member.
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 624
Offline Offline

Gender: Male
Posts: 2640
« Reply #3 on: February 17, 2009, 06:32:14 PM »
That notch thing would be a great idea
 rotflmao  Tongue Out
Logged
tacman
NLG Document, Media Gallery and FAQ Writer
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 446
Offline Offline

Gender: Male
Posts: 1537


Genius in training.
« Reply #4 on: February 17, 2009, 06:40:19 PM »
What notch thing??  arrow arrow arrow

 Dan (tacman)
Logged
a69mopar
647-402-1977
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 600
Offline Offline

Gender: Male
Posts: 3508



WWW
« Reply #5 on: February 17, 2009, 08:09:28 PM »
I try to notice the notch but every now and then I screw up and put them backwards (when reading).  My programmer shuts it's power down when I do this and I have to unplug the power and plug it in again for it to reset.  So far I haven't exploded any.

Thanks,
Wayne
Logged
         www.GTASLOTS.com      647-402-1977              BALLY S6000 GALLERY
Slotmaster
Contributing Gold NLG Member
Sr.NLG Member 501 to 1000 Post
*

Total Karma Storms: 172
Offline Offline

Gender: Male
Posts: 532
« Reply #6 on: February 17, 2009, 09:38:07 PM »
I have yet to cook an eprom in a programmer but have for sure in a MPU when backwards.

Just gets really hot with no explosion.
Logged
a69mopar
647-402-1977
Global NLG Site Moderator
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 600
Offline Offline

Gender: Male
Posts: 3508



WWW
« Reply #7 on: February 17, 2009, 11:23:14 PM »
On a Bally s6000 putting the mains in backwards can alter the chip so it wont work, the eprom is still good, just the programming changes.  Always keep a backup.

W
Logged
         www.GTASLOTS.com      647-402-1977              BALLY S6000 GALLERY
jdkmunch
Senior Full time Member.
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 624
Offline Offline

Gender: Male
Posts: 2640
« Reply #8 on: February 17, 2009, 11:49:05 PM »
OK as long as there is no trip wire that can damage the chip.  I shall back them up.
Logged
KirkLasVegas
Retired OLD Buzzard
Contributing Gold NLG Member
Sr.Tech NLG Member 1000+ Post
*

Total Karma Storms: 233
Offline Offline

Gender: Male
Posts: 1104


Newest addition to the family, RIP Bentley
« Reply #9 on: February 18, 2009, 12:45:10 AM »
It's really simple....
*TAKE A PICTURE* of the entire board before you pull anything off of it.I can't tell you how many times this has saved my butt in the past.
A silver "Sharpie" is good for placing a dot by the notch in the chip and on the PCB. Usually all chips will face the same direction on a PCB, but not always!
Some PCB's will have an outline on the board, others will have a #1 on the printed side. Others will have a square pad by pin one and round pads everywhere else.
Programmers....
ALWAYS...ALWAYS! set the switches before you drop a chip in the ZIF socket! Double check it. Nothing will piss you off more than to kill a chip you want to Read/Copy.Trust me on this one..it will spoil your day!

Hope this helps!

Kirk in Las Vegas
Logged
Definition of "Retirement"= to be able to get back all you contributed into it AND take some of their money too before dropping dead.
Pages: [1] Go Up Print 
« previous next »
Jump to:  

SimplePortal Classic 2.0.5

If you find this site helpful, Please Consider Making a small donation to help defray the cost of hosting and bandwidth.



Newlifegames.com ™    Newlifegames.net ™    Newlifegames.org ™
   New Life Games ™    NewLifeGames ™  NLG ™ We Bring new Life to old Games ™    1-888-NLG-SLOTS ™
Are all Copyright and Trademarks of New Life Games LLC 1992 - 2021


FAIR USE NOTICE:

This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner.
We make such material available in an effort to advance awareness and understanding of the issues involved.
We believe this constitutes a fair use of any such copyrighted material as provided for in section 107 of the US Copyright Law.
In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those
who have expressed a prior interest in receiving the included information for research and educational purposes.

For more information please visit: http://www.law.cornell.edu/uscode/17/107.shtml.

If you wish to use copyrighted material from this site for purposes of your own that go beyond fair use,
you must obtain permission directly from the copyright owner.

NewLifeGames.net Web-Site is optimized for use with Fire-Fox and a minimum screen resolution of 1280x768 pixels.


Powered by SMF 1.1.20 | SMF © 2013, Simple Machines
Loon Designed by Mystica
Updated by Runic Warrior
Page created in 0.097 seconds with 20 queries.