(Topic ID: 178892)

System 11 Src7/src9 10 pin resistor network substitute?


By jcar302

3 years ago



Topic Stats

  • 16 posts
  • 8 Pinsiders participating
  • Latest reply 3 years ago by Taxman
  • Topic is favorited by 9 Pinsiders

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DoIt (resized).jpg
Example front (resized).png
Example back (resized).jpg
RC Network 10pin (resized).jpg
rc network (resized).jpg

#1 3 years ago

Hey guys, got a road kings from a friend. While showing me some loose resistors, he broke one off (one was already gone).
I believe they are for the displays.
Src7 and src9

Manual says part number is williams 5060-10396-00
Description SIP, 8R 8C 10 pin 4.7k ohm 470 PFD

I only found one place online with that part number and they are $22 each. Seems kinda crazy considering similar resistors are 25 cents to $3 each. I usually don't nitpick over a couple bucks, but this time it's kinda extreme.

While i can replace them, i'm not as of yet (or maybe ever) qualified to decide what other parts if any will work in it's place.
Marco's has a bunch but i didn't see any matching these specs.

Thanks,
Joe

#3 3 years ago

The bussed resistors with an integrated capacitor is hard to find. I believe it is acceptable to use a resistor network without the cap in its place

#4 3 years ago

You tell me, lol. I'm not sure what all the numbers mean. So i wouldn't really know if that's it because the specs aren't an exact match.

Thanks chedder i had read that is some searches here (didn't see a listing for an src7 or similar), is the one taxman linked me to the same without a capacitor?

Thanks for the replies.

#5 3 years ago
Quoted from jcar302:

is the one taxman linked me to the same without a capacitor?

Yes, but this resistor network has nine resistors instead of eight so you need to cut off pin ten before you install it and make sure it doesn't touch the solder pad of the board.

#6 3 years ago

The RC networks are a tough one to replace -- nobody makes the right version as a standard product. Looked into getting a batch made. Would have cost several $thousand... That pretty much explains the $22 each for an exact replacement.

It is acceptable to use a resistor network here as the caps don't do much on this circuit. See here for more information:
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#Repairing_Alkaline_Corrosion

A better choice than the Bourns 10-pin 4610X-101-472 network would be the 9-pin version 4609X-101-472
This way, you don't have to cut the tenth pin. See photo on pinwiki link:
http://www.pinwiki.com/wiki/index.php?title=File:ReplacingSRCPartsSystem11.jpg

Link to 9 pin version:
https://www.greatplainselectronics.com/proddetail.asp?prod=4609X-101-472

#7 3 years ago

I made them myself.
http://www.flippermarkt.de/community/forum/showthread.php?t=160376

All Parts ( including the prototype boards are available at Digi Key)
I will post the part numbers later the day.

#8 3 years ago
Quoted from master_of_chaos:

I made them myself.
http://www.flippermarkt.de/community/forum/showthread.php?t=160376
All Parts ( including the prototype boards are available at Digi Key)
I will post the part numbers later the day.

Any chance you could repost the images? That forum hides images from non-members.

#9 3 years ago
Quoted from ForceFlow:

Any chance you could repost the images? That forum hides images from non-members.

Oh, sorry. Yes i will re-post the pictures here.

#10 3 years ago

So, if you want to make them yourselves :
Prototye boards: http://www.digikey.de/short/3r2ppv
4k7 resitor network : http://www.digikey.de/short/3r2pzj
(1k resistor network ( in case you need the combination with 1k instaed of 4k7 ))
470pf capacitors : http://www.digikey.de/short/3r2pz0

Here is a linkt to the manufacturers website of the uni-sip boards
http://www.capitaladvanced.com/uni-sip.htm

here are some pictures :

you can build the boards in 2 versions : withe pin1 on the left or on the right side.
so , this save space if you have to seat 2 of these face to face.

i know, it does not look very professional, but it works
i discussed the production with ingo kramer ( tz clock replacement ) using smd components, but there was not a huge demand, so that was to expensive.

rc network (resized).jpg

RC Network 10pin (resized).jpg

Example back (resized).jpg

Example front (resized).png

#11 3 years ago

Ok, so if i'm reading right, i buy the resistors from great plains listed above by gpe, put pin 1 to the right, then cut off left most pin.

So, originally is was a 10 pin, now i'm using a 9 pin and cutting one off making it an 8 pin, correct?

This is why i was so confused, i appreciate all the help.

And master, that looks pretty professional to me, nice work. I could probably pull it off, but might take me hours.

#12 3 years ago

The easy solution is to just use the bussed resistor that Ed (G-P-E) linked to:

https://www.greatplainselectronics.com/proddetail.asp?prod=4609X-101-472

Ed's a smart guy and knows more about circuits and their design than probably 99% of the people around here. If he says the caps aren't needed, they aren't needed.

#13 3 years ago
Quoted from jcar302:

So, originally is was a 10 pin, now i'm using a 9 pin and cutting one off making it an 8 pin, correct?

No, there is two versions that you can purchase a 10 pin and a 9 pin. If you find the 9 pin you don't cut anything you just install it with the dot of the pack lined up with dot on the board. And hole 10 on the board is not covered. If you purchase the 10 pin pack you cut off pin 10 and install with the dots lining up but now the pack covers the tenth hole on the board but can't touch the solder pad.

#14 3 years ago
Quoted from stangbat:

The easy solution is to just use the bussed resistor that Ed (G-P-E) linked to:
https://www.greatplainselectronics.com/proddetail.asp?prod=4609X-101-472
Ed's a smart guy and knows more about circuits and their design than probably 99% of the people around here. If he says the caps aren't needed, they aren't needed.

Ok.
So that's a 9 pin, i just line up the dot and install.

#15 3 years ago
Quoted from jcar302:

So that's a 9 pin, i just line up the dot and install.

Yep.

#16 3 years ago

DoIt (resized).jpg

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