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soldering in ezk board to icu. 20 pins, 21 holes

olov

doing something stupid
Joined
Aug 11, 2003
Location
warrenton, nc 27589
so I couldn't find a chippable box for a decent price, so I got the daughtercard. anyone have any instructions or can tell me where to put it? there's 21 holes in my icu's and there's 20 pins on the ezk board. the two traces on the right side are both fatter, so maybe don't use the 2nd fat trace?

thanks
 
Picture from this link: https://forums.turbobricks.com/showthread.php?t=303699
shows (if photobucket doesn't squash it):
Foto61_zpsc1c5c2e8.jpg


Daughterboard pins go into both fat traces, and there's an empty hole on the other end going to the metal can (crystal).
 
Props to bobxyz.

"Ensure that pin 1 of your daughter board goes into the EZK pcb trace labelled T741 as shown in this picture, and that there is one empty hole on the EZK pcb at the other end of the daughter board connector (on the left side when the db is facing you). (The original connector on the EZK PCB is 23 pins, with pin 2 blocked as a key, and pins 1 and 23 as a guard trace. The blabla daughter board only connects to the inner 20 of the 23 pins.)"

From: https://forums.swedespeed.com/showt...instruction!&p=5672329&viewfull=1#post5672329
 
Props to bobxyz.

"Ensure that pin 1 of your daughter board goes into the EZK pcb trace labelled T741 as shown in this picture, and that there is one empty hole on the EZK pcb at the other end of the daughter board connector (on the left side when the db is facing you). (The original connector on the EZK PCB is 23 pins, with pin 2 blocked as a key, and pins 1 and 23 as a guard trace. The blabla daughter board only connects to the inner 20 of the 23 pins.)"

From: https://forums.swedespeed.com/showt...instruction!&p=5672329&viewfull=1#post5672329

awesome, that is very helpful
 
Here's a screen grab of the above picture -- I'm not sure why I can still see it clearly on my home computer, but not others.
EZK116-PROM-Daughterboard-Installation.jpg
 
Don't know how you would mount the board the other way. All of the ones I'v seen including factory boards are mounted like in Bobs picture. Also if the board is the other way the board would interfere with the IC toward the top in the picture. Those pins can interfere with the IC as they are if youi aren't careful.
 
Don't know how you would mount the board the other way. All of the ones I'v seen including factory boards are mounted like in Bobs picture. Also if the board is the other way the board would interfere with the IC toward the top in the picture. Those pins can interfere with the IC as they are if youi aren't careful.

it really doesn't, it hits some other components. but the yoshifab board has a "P1" on it, and the previous link says "Ensure that pin 1 of your daughter board goes into the EZK pcb trace labelled T741"

so not sure I guess I should just put it like the other boards with the chip out, but "P1" will be on another trace
 
Check with Yoshifab, but I think this picture is the correct orientation and location: https://imgur.com/97lDtX7

The Yoshifab board is a little smaller than the Bijlsma board shown in the web pictures, but I'd expect it to mount the same way. The "install header reverse side" comment means that the right angle pin header should be plugged into the non-component side of the board. If you plugged it into the component side, and soldered there, it would shift the whole board inwards by ~1/4"
 
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