CTC203AX sound problem

I have a CTC203AX set with the common sound going away problem until, the set is powered off and back on. Here is the internet person fix for it;

I found this tip from Dennis Viereck website that helped me correct a few CTC203 no sound problems. There is a smd cap off of pin #1 of U12101(LA7612N) whose glue at times goes conductive. Cap # is C309 if I remember correctly, cap is good, just lift it and clean the glue off the board. Also check L12303

I have tried this but there was an issue with the labelling of cap C309, off pin 1 of IC LA7612A is actually C304 I believe, also the capacitor didn't resist my iron which was too big. I would like to replace with an axial type but I do not know the value. Would you someone else have the value for that cap?

Appreciate your help if you can.

Reply to
mikercana1
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I have a CTC203AX set with the common sound going away problem until, the set is powered off and back on. Here is the internet person fix for it;

I found this tip from Dennis Viereck website that helped me correct a few CTC203 no sound problems. There is a smd cap off of pin #1 of U12101(LA7612N) whose glue at times goes conductive. Cap # is C309 if I remember correctly, cap is good, just lift it and clean the glue off the board. Also check L12303

I have tried this but there was an issue with the labelling of cap C309, off pin 1 of IC LA7612A is actually C304 I believe, also the capacitor didn't resist my iron which was too big. I would like to replace with an axial type but I do not know the value. Would you someone else have the value for that cap?

Appreciate your help if you can.

Reply to
mikercana1

There Has Been A Situation When In Some Rca/Ge Televisions A Low-Level, Scratchy-Sounding Noise Comes Out Of The Speakers Instead Of Normal Audio, Or When Video Is Muted. These Problems Can Occur When Invalid Xds Data Is Broadcast By Television Stations And Received By Certain Thomson Television Receivers. Xds Data Is Digital Information Placed Within The Video Signal'S Vertical Interval Of An Analog (Ntsc) Television Transmission. This Data Is Used By The Microprocessor In The Television Receiver. It May Be Transmitted From Any Analog Television Channel.

A Fix That I Have Been Recommending To Our Techs Is To 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. In The Event That Later On The Resolve The Defective Data Problem The Capacitor Can Be Removed. Obviously The Closed Caption Feature Will Be Crippled With This Capacitor Installed.

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Jeff Stielau
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Reply to
Shoreline Electronics

Why is that Art ???

Reply to
kip

It also disables the tv guide plus feature of the tv set as well.

Reply to
dkuhajda

Reply to
kip

Would you know the value of that capacitor on pin 1 of that IC LA7612A?

I would just like to put another one in, since I do not have a schematic diagram and there is no labelling on it, I can't figure it out.

IT should a simple coupling capacitor, I would probably assume around .1 uf 50 VDc would do but I would like to make sure.

Thank you for your help

Reply to
mikercana1

Incorrect. Guide Plus still functions according to the masses.

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Jeff Stielau
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Reply to
Shoreline Electronics

Thomson Technical Assistance states that they do not have a repair for their sound drop out problem yet, all though they are deeply interested in producing a complete and accurate repair for all the consumers that may be experiencing the multiple of problems. A statement from one of their staff members when contacting regarding sound drop out with apparent lock onto the SAP feature, not allowing one to defeat that selection (SAP) via their menu. Their factory approved repair was to tell the consumer to unplug the set for a short peroid of time and it would temporarily cure the audio drop out and SAP lock problems.<

Reply to
Art

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