IC sockets  - Page 1
Forum section: electronics / beginners

author: jtdollard
author_rank: Newbie
timestamp: August 16, 2013, 05:21:51 am
content: Hey guys I'm new here I have a question about sockets. I collect arcade games and do a little repair work as part of this hobby. So I picked up a Daughter card the other day on the cheep and the sockets that the CPU and PPU mount in are bad. The only markings on them are yamaichi tc-63-14.Thanks

author: notsob
author_rank: Frequent Contributor
timestamp: August 16, 2013, 06:02:50 am
content: and the question is ?

author: bbarbour
author_rank: Contributor
timestamp: August 16, 2013, 06:20:55 am
content: Sockets are really just to make repairs/reprogramming/etc... simpler when dealing with ICs. Of course, when non-standard IC sockets go bad many years after EOL, that can cause problems. If you can't find exact duplicates, what about finding something equivalent by inspecting the CPU/PPU datasheets? Worst case scenario, remove the sockets and solder directly to the board.

author: David_AVD
author_rank: Super Contributor
timestamp: August 16, 2013, 06:21:46 am
content: Quote from: notsob on August 16, 2013, 06:02:50 amThe terminal air velocity of the European Swallow?

author: fluxcapacitor
author_rank: Frequent Contributor
timestamp: August 16, 2013, 07:01:55 am
content: it could be a 40 pin dil socket ?

author: Unknown
author_rank: Unknown
timestamp: August 16, 2013, 08:50:29 am
content: Looks like a wire wrap socket that was soldered in. If the spacing between pins is 100 mil (.1") and between the rows is 600 mil, then a standard DIP40 socket should work. If the pin spacing is 100 mil but the spacing between rows is an oddball value, then cutting up a socket or installing strips of machined pin sockets might work. Otherwise you could either solder it directly or install individual machined pins.

author: jtdollard
author_rank: Newbie
timestamp: August 16, 2013, 02:06:13 pm
content: The chips are standard dip40 packages but the headers in the second pic are part of the socket and are also the interface with the main board. They plug in to the dual wipe sockets on the main board that would normally be used for the CPU and PPU, but in this case they mount in these sockets on the Daughter card. the problem I'm is the sockets are bad you plug the chips in and the fall right out. So does any one know what these sockets are? They are used in all Nintendo Vs arcade daughter cards and in this case we are talking about Vs Super Sky Kid one of the rarer of the Vs arcade games.

author: madires
author_rank: Super Contributor
timestamp: August 16, 2013, 02:40:07 pm
content: Yep, wirewrap IC socket. You could also use sandwich terminal strips, like the standard socket terminal strips just with extra long pins.

author: StubbornGreek
author_rank: Frequent Contributor
timestamp: August 16, 2013, 04:16:34 pm
content: Is there anything preventing you from soldering the CPU and PPU directly to the board (and foregoing the sockets completely)?

author: jtdollard
author_rank: Newbie
timestamp: August 16, 2013, 04:20:13 pm
content: yeah the socket acts as the interconnect between the daughter card and the main board.

author: SeanB
author_rank: Super Contributor
timestamp: August 17, 2013, 06:25:33 am
content: Grab a regular 40 pin socket with turned pins, or a strip of socket pins and place in the socket. Place a IC of the right spacing into them as a spacer, and then solder the strip to the existing blue socket. Done this before as I was not willing to undo all the wire wrap to get to the existing socket to replace it.

author: fluxcapacitor
author_rank: Frequent Contributor
timestamp: August 18, 2013, 12:16:45 am
content: would one of these be any good to youEJECT-A-DIP™ Lock/Eject DIP Collet Socket with Wire Wrap Pinshttp://www.arieselec.com/products/data/12025-dip-collet-wire-wrap-socket.htm

author: jtdollard
author_rank: Newbie
timestamp: August 18, 2013, 02:12:01 am
content: Thanks but those are over $20US and i have 4 of them to replace and I can buy a working board for less than $100. I think im going to try soldering another socket in the old socket.

author: fluxcapacitor
author_rank: Frequent Contributor
timestamp: August 18, 2013, 05:05:36 am
content: yes,they are expensive.You might be able to repair the pins on yours ?http://arcadecontrols.com/BBBB/pacsock.html