Apple IIC Keyboard Encoder IC Chip. Help!

[ColecoGamer]

Can someone please explain where the Keyboard Encoder IC Chip is located on the Apple IIc’s motherboard?

 

I figured there would be something online to help me, but what I found explains nothing.

 

Please HELP!

Edited March 18, 2022 by ColecoGamer

[ColecoGamer]

It took a long time to find, but I came across an old message board conversation where a user mentioned the chip number.  
 

That is more than I knew before, so now I can scout out the motherboard and replace the chip. I keep reading that the IC chips are socketed, but I also thought it was soldered to the board. Go figure. 

[nick3092]

Just pulled up pics of my IIc. I'd put my money on the chip where the pcb marked ENC, to the lower left of the keyboard connector. Mine is soldered.

 

Mine is also the original non memory expansion model. They may have moved and/or socketed it on the later memory expansion model. 

Edited March 18, 2022 by nick3092

[ColecoGamer]

1 minute ago, nick3092 said:

Just pulled up pics of my IIc. I'd put my money on the chip where the pcb marked ENC, to the lower left of the keyboard connector. Mine is soldered.

 

Mine is also the original non memory expansion model. They may have moved and/or socketed it on the later memory expansion model. 

Thank you for this info! There seems to be an expansion board inside my IIc. If I encounter any problems, I will post a photograph of the motherboard.

[nick3092]

I have an expansion IIc as well, I just didn't take pics till now. It's in the same location as the original model, and is still soldered.

 

 

[ColecoGamer]

9 minutes ago, nick3092 said:

Just pulled up pics of my IIc. I'd put my money on the chip where the pcb marked ENC, to the lower left of the keyboard connector. Mine is soldered.

 

Mine is also the original non memory expansion model. They may have moved and/or socketed it on the later memory expansion model. 

Yup! Found it! I had to remove the expansion board to find it.

 

[ColecoGamer]

Now its time to get to work! Thank you to everyone who responded.

[ColecoGamer]

Well… after all that time I spent verifying the location of the Keyboard Encoder chip, my soldering iron decided to crap out on me.

 

I ordered a new one, and it will be delivered this coming Monday.

 

What a bummer!

[nick3092]

That's nice if you have the official Apple memory expansion card. Those aren't that common from what I've seen. I haven't actively looked for them, but the few times I have they weren't easy to find. Clearly you can see in my picture I went with the modern aftermarket route.

Edited March 19, 2022 by nick3092

[ColecoGamer]

19 hours ago, nick3092 said:

That's nice if you have the official Apple memory expansion card. Those aren't that common from what I've seen. I haven't actively looked for them, but the few times I have they weren't easy to find. Clearly you can see in my picture I went with the modern aftermarket route.

I don’t believe its an official Apple card, but here it is:

 

[nick3092]

Ah, that's a 3rd party ram expansion for the original IIc without the expansion header. I had incorrectly assumed you had the later model IIc. 

[ColecoGamer]

4 hours ago, nick3092 said:

Ah, that's a 3rd party ram expansion for the original IIc without the expansion header. I had incorrectly assumed you had the later model IIc. 

I really like the chess pieces stamped on the card. Any idea who the 3rd party manufacturer was?

[The Usotsuki]

4 hours ago, ColecoGamer said:

I really like the chess pieces stamped on the card. Any idea who the 3rd party manufacturer was?

It says Checkmate Technologies.