Which way should the ASIC chip face on the Rottendog MPUSEC for the WPC-S? Pictures appreciated - the manual was non-existent on a new board and the Rottendog page for the board is DOA.
(Topic ID: 235895)
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Hopkins, MN
https://ksarcade.net/rottendog-mpu089-wpc-89-a-12742.html
Hover over the picture with mouse over ASIC. The dot should be on the right side if I recall correctly.
Quoted from DumbAss:
https://ksarcade.net/rottendog-mpu089-wpc-89-a-12742.html
Hover over the picture with mouse over ASIC. The dot should be on the right side if I recall correctly.
Thanks!
Quoted from LTG:
Doesn't one corner have a notch to line up with a notch on the socket and board ?
LTG : )
Not that I saw. Ordinary chips are obvious, maybe it's real subtle?
Quoted from Brijam:
Not that I saw. Ordinary chips are obvious, maybe it's real subtle?
It is subtle, 3 sides have pointed corners, the other has a flat corner. I don't believe it can be inserted wrong without pounding it in with a mallet.
The notched corner and socket key is shown here:
Quoted from Pin_Guy:
I don't believe it can be inserted wrong without pounding it in with a mallet.
Are you sure? Asking for a friend.
PLCC's (this type of package for an integrated circuit) do have one chamfered corner to specifically orient the part when being inserted into a socket.
Can you insert it without a mallet? Well... probably. But you will be forcing it.
Look at this photo of another PLCC. Note the dot which denotes the pin 1 location (in middle of one side). To the left of the dot is always the chamfered corner.
PLCC (resized).jpgPromoted items from the Pinside Marketplace
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