Very rare new or like-new 93459 DC (apparently similar to the MOS 906114-01) PLA chip IC for Commodore 64? These particular PLA chips are apparently ceramic and (therefore) possibly less likely to overheat than most regular Commodore or MOS PLA chips! These particular 93459 DC chips have one or more slightly bent legs (possibly worse than the photos) but are still guaranteed for 30 days regardless. These PLA chips shown here weigh about 3 times as much as regular Commodore 64 PLA chips-- probably because they are apparently ceramic. The Commodore 64 PLA chip is one of the most likely chips to cause the Commodore 64 to lose its picture when they fail. It is our experience (based on thousands of repairs we have done on Commodore 64 computers during the past 30 years) that a failed PLA chip is the cause about 30% of the time (or more) when no display screen appears on a Commodore 64 computer. Urgent note: We believe that these chips are the PLA chip only for the very earliest Silver Labelled (without rainbow-like multi-color stipes) Commodore 64 computers (1982 vintage only?). Apparently these oldest Commodore 64 computers cannot use the slightly newer (and much more prevalent) 906114-01 PLA chips or the 82S100 series PLA chips or the PLS100N chips but may require these 93459 DC PLA chips we are selling here. We do not believe that these chips we are selling here will work on any subsequent versions of the Commodore 64 having the rainbow-like stripes on the top or on the Commodore 64c computers. Most of the later Commodore 64 computers (prior to the 64c) had a rainbow-like color stripe just to the right of the Commodore 64 name. These particular chips that we are selling here have a little yellow dot in the bottom left corner of the front side of the chip (see photos). The best way to tell if this chip might work for you is to see if the chip you are trying to replace has the same 93459 DC number on it. The numbers following the letter \"F\" on the second row of characters on the top of the chip probably don\'t matter due to the fact that those numbers are likely just production date code numbers. The production date code number on the chip you receive may be different than the date code number of the chip shown in the photo-- but that shouldn\'t matter. If you have a silver labelled Commodore 64 (without the multi-color rainbow-like stripes) but the PLA chip it has been using (that you are considering replacing) does not have the same 93459 DC part number as these we are selling here you may have a Commodore 64 with a different circuit board than what these chips here are compatible with.Urgent description update (10-4-21): One person who seemed very well informed about these chips contacted us shortly after we listed this item to tell us that these chips ARE interchangeable with other PLA chips on all Commodore 64 computers except for the 64c units with the smaller boards. We haven\'t verified this information independently but he is quite possibly right. We have so many items here that we don\'t have extensive time to research every item but we advise any potential buyers of these chips to verify that they are what you need before ordering.
Please verify that these chips are what you need before ordering.
Fifteen or twenty years ago we picked up about 200 assorted Commodore 64 PLA chips from a major corporation that used to refurbish Commodore computers. We picked up around ten thousand other Commodore and Amiga chips from the same source and have sold thousands of them over the last 15 to 20 years with great success and very few problems. The legs on this particular chip are shiny and not bent at all-- indicating that this chip has probably never been installed or used on any computer or device. However, the chip(s) you get may be slightly scratched or scuffed due to the fact that they have been stored in special chip storage tubes for the past 15 years or more.In addition to the PLA chip there are many other causes of getting a blank screen on Commodore 64 computers such as a defective power supply, bad fuse, bad ram chip(s) and/or bad video chip, etc. Therefore you cannot assume that a PLA chip will cure a blank screen. However, since this is a fairly likely cause of a blank Commodore 64 screen it doesn\'t hurt to have one or two on hand-- especially since these are getting increasingly difficult to find.We ship these chips in special static-resistant chip boxes with black crisp anti-static foam to protect them.
We take note of the production date codes of all chips shipped and oftentimes put little warranty stickers on the bottom of the chips which we ship in order to make sure that any returns are chips which we actually sold. Any returned chips which do not match the production date codes or which have missing or damaged warranty stickers will not be refunded. If you don\'t want little warranty stickers on the bottom of these please contact us before ordering to make special arrangements.Note: Our shipping price is a couple of dollars higher than our actual shipping cost on these normally because of our cost on the special anti-static boxes which we ship them in.We have been selling Commodore hardware, parts and accessories for over 39 years (since 1983) and have a great reputation.
