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The RCA sound issue.

Which units can you unplug the Gemstar module, & have the T.V's work without it? The units with one, or two ribbons? RCA isn't likely to have a fix for it anytime soon. Look at this link from 2001.

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We have units come in, & work fine. Can you "tweak" the EEPROM? Remember the old MTC MTV-2047RF I think T.V.'s, you had to glue a bit of copper, or metal over the micro, & put grounds on it! Worked great. Has the capacitor mod worked for anyone? Place a 1uf 50V capacitor to ground on U13101(15). This swamps the closed caption data to the micro and stops the reception of the defective data packet.

The units I get, work fine after being unplugged, & brought to the shop.

Reply to
Dani
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Yes there are two types of CTC203 chassis, one is one ribbon with smart chassis (has micro onboard), and other one that uses two ribbons with dumb chassis (no micro on the chassis, the micro is built right into gemstar).

The one ribbon you can unplug ribbon cable and remove gemstar module entirely. The two ribbon type, you have only two options, manual reset with remote or unplug and wait for half a hour.

Remember to ask customer first before doing the cap modification because some use CC.

Cheers, Wizard

Reply to
Jason D.

What's the gemstar module do?

Reply to
James Sweet

What are you asking? What the consumer function of the gemstar module is and why it is in the tv set? What does it do that is the cause of the malfunction? Or something else?

Reply to
dkuhajda

"James Sweet" wrote in

What are you asking? What is the Gemstar function suppose to be? Why is it in the tv sets? Or what does it do when it malfunctions to lose the audio in an RCA?

Reply to
David Kuhajda

What are you asking? What the consumer function of the gemstar module is and why it is in the tv set? What does it do that is the cause of the malfunction? Or something else?

Reply to
dkuhajda

The first, I've heard of Gemstar but I don't know what the purpose of it in the set is, sorry I should have been more clear.

Reply to
James Sweet

Gemstar is the brand name for the extended data service hardware format that sends out the tv show information and tv guide information on specific tv channels during the blanking interval.

Television sets that include Tv Guide plus have all the Gemstar features installed. Tv sets with the XDS only have the extended data feature enabled that gives the show title, run time, and maybe some other minimal information.

The Gemstar circuit can be implemented in a separate module, within the system controller ic, or on a separate data controller ic near the system control ic.

The problem is the Gemstar implementation has some software bugs that are expensive to fix and each new implementation seems to have a new software bug. Add the fact that the tv stations sometimes send out incorrect data on line 21, or it gets distorted on the signal, and there is a large chance for error.

Reply to
dkuhajda

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