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Video and sound IC's
#1
Hi,

I just got my first TI-99 and it doesn't work. Tested the power supply - good, tested the internal power board - good. No video (black screen), and the sound IC gets incredibly hot in about 10 seconds.

The sound IC is SN94624N and the video IC is TMS9918ANL.

I'm not finding a source for the audio chip at all, and all of the video IC's seem to be in Hong Kong.

I wrote TI and asked if the SN76489 is considered a drop in replacement for this IC, but I haven't heard from them yet...

Anyone have any working spares?


Messages In This Thread
Video and sound IC's - by TheRealAnubis - 05-23-2014, 03:50 PM
RE: Video and sound IC's - by ksarul - 05-25-2014, 12:45 PM
RE: Video and sound IC's - by TheRealAnubis - 05-25-2014, 07:15 PM
RE: Video and sound IC's - by TheRealAnubis - 06-06-2014, 12:54 PM
RE: Video and sound IC's - by TheRealAnubis - 06-25-2014, 04:17 PM
RE: Video and sound IC's - by ksarul - 06-25-2014, 06:37 PM
RE: Video and sound IC's - by TheRealAnubis - 06-25-2014, 06:51 PM
RE: Video and sound IC's - by ksarul - 09-05-2014, 08:14 PM

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