[TechAssist] Re: CTC203AA5, is LA7612A the same as LA7612N, weird problem with T chip
- From: "JMartin.exceldistributinginc.com" <jmartin@xxxxxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 15 Sep 2003 12:26:33 -0400
Hi Kevin!
Thomson subs the LA7612N to a LA7612A. The -N was part #241266 and now it
subs to #252842 ($21.10) and there is a -A in the package.
Hope this helps. Let me know if you need one.
Sincerely,
Jason Martin
Excel Distributing Inc.
1819 Mentor Ave.
Cincinnati, Ohio 45212
800-733-3329
800-735-8007 fax
www.ExcelDistributingInc.com
==============================================
2nd Day Air for just $7 up to 5 lbs. with only a $20 order!
==============================================
We will meet or beat any advertised
price on Thomson RCA parts!!!
==============================================
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 11, 2003 4:34 PM
Subject: [TechAssist] CTC203AA5, is LA7612A the same as LA7612N, weird
problem with T chip
> First a question: Is LA7612A the same as LA7612N?
>
> Second thing: With the help of Robert and Google I now have
> troubleshooting techniques for the Gemstar 4 modules with the built in
> micro. I determined that the data line going into the Gemstar is low (2
> volts) and the Gemstar is good. I traced the data line back to the T
> chip, LA7612A, and a funny thing happened: I disconnected one leg of
> R12710, and my data line jumped up to 5.2 volts (which is good). T chip
> must be bad. But then, I reconnected R12710 and disconnected pin 44
> (which is on the other side of R12710) of the T chip, and my data
> voltage went DOWN to 1.6 volts. My clock line also went low (pin 43).
> What is going on here? I repeated the above test twice to make sure I
> wasn't seeing things. Thanks.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
>
>
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