A pair of Philips 10" AC/DC sets.

[dr.ido]

A couple of recent acquistitions. I've been sticking to small sets lately and couldn't leave these behind. These were quite popular sets here, though these are the first I've owned. Up until now they've always sold for more than I was willing to pay.

On the left is the KA910, on the right the slightly younger KA921 (which actually has an AV input, though it's on a 6 pin DIN connector). Both were built by Sharp for Philips Australia. I don't know if other versions of these existed in other countries. As found the KA921 is dead while the KA910 has a weird fault that I haven't seen before.



Once I deal with that (first stop caps as usual) it should produce a great picture (the camera makes it look worse than it actually is).



The KA910 has a weird 5 pin power connector that I don't have the lead for. I'll probably end up replacing it with a pair of standard connectors. Identifying the AC and DC inputs was easy enough, but I've yet to trace out the purpose of the 5th pin. I suspect it needs to be jumpered to one of the AC pins to enable DC operation.



While the KA921 looks almost identical from the outside it's chassis is much more integrated. I've yet to find anything I recognise as a date code in either set, though I don't think there is more than a couple of years between them.

Both of full of Sharp IXxxx numbered ICs. I know that at least some of the IX series are actually standard parts that that have been renumbered. Does anyone have a cross reference list?