Need Data sheet - Clock IC

[fastback86]

Anyone have any info on this IC? It's in a clock circuit with a VFD for a early/mid '80s Ford vehicle.

View attachment 67173

 

[KeepItSimpleStupid]

No, but before you give up on it do the following: With the unit out, short the power wires to ground of the clock for at least 1 minute, then try to power it up again.

 

[fastback86]

No, but before you give up on it do the following: With the unit out, short the power wires to ground of the clock for at least 1 minute, then try to power it up again.

And that does what?

 

[KeepItSimpleStupid]

Well, I had a VFD auto clock from an 80's era car that died after the car was jumped and it was fixed using that technique. The failure was no display. So were a couple of other devices such as an HP calculator and someone's bike computer that was run across a carpet and got a jolt of static that were fixed the same way.

Electrical charges occasionally get trapped in CMOS parts and shorting power and ground allows those charges to get removed. I did read it somewhere and it may have been either a National Semiconductor book or when I took Solid State Physics. It's worth a shot.

 

[fastback86]

Who said it failed? I was looking to adapt it for something else...

 

[fastback86]

...hence the need for a data sheet.

 

[KeepItSimpleStupid]

OK, you win, but you learned something.

 

[fastback86]

OK, you win, but you learned something.

True.

Anyone else??

 

[shokjok]

Have you tried to reverse engineer the pin-out from the PCB? It's possible to use transparent copy paper to get a good idea of how the connections can be modified.
Were you planning on reusing this IC in another capacity?

 

[fastback86]

Have you tried to reverse engineer the pin-out from the PCB? It's possible to use transparent copy paper to get a good idea of how the connections can be modified.
Were you planning on reusing this IC in another capacity?

That's really more effort than I wanted to put it to it. I actually wanted to adapt it to something else but have since abandoned the idea.

 

[shokjok]

I doubt much that Ford Motor Company can help you. If it's a proprietary IC for which no known substitute is available, then you are better off shopping at the auto yards for a similar radio with the same IC, much less than the IC itself!