[TechAssist] Re: RCA CTC 187 menu disappears,volume works

  • From: Al L <alleathe@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 06 Jul 2005 08:42:49 -0400

Thanks Wayne,will report.

Al Leatherman
224 RT. 46
Mine Hill, NJ 07803
973-361-5796
WWW.ALS-TV.NET

----- Original Message ----- 
From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 06, 2005 8:31 AM
Subject: [TechAssist] Re: RCA CTC 187 menu disappears,volume works


> Y3101 217322 8MHz.
>
> Wayne Vanaman
> Omega Electronics
> 6904 W Fairfield Dr
> Pensacola, Fl.  32506-3310
>
> Wayne@xxxxxxxxxxxxxxxxxxxxx
> WWW.PensacolaTVRepair.Com
>
> 850-456-5995 voice
> 850-458-6369 fax
>
>
> Al L wrote:
>> Thanks Wayne and its Model F35673MB,CTC187CL3
>> ----- Original Message ----- 
>> From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Wednesday, July 06, 2005 7:53 AM
>> Subject: [TechAssist] Re: RCA CTC 187 menu disappears,volume works
>>
>>
>>
>>>First a little about digital.
>>>The micro has an internal clock and outputs clock pulses.  The data
>>>pulses are synced to the clock pulses serially.  The other chips on the
>>>board look for the clock pulses.  Some sets have "enable" lines that go
>>>from the micro to certain other ICs to activate them.
>>>
>>>In you this case, go for the crystal.  I believe they had 4, 8, and
>>>12MHz versions.  Without a MODEL NUMBER...AL...we can get too specific.
>>>
>>>Wayne Vanaman
>>>Omega Electronics
>>>6904 W Fairfield Dr
>>>Pensacola, Fl.  32506-3310
>>>
>>>Wayne@xxxxxxxxxxxxxxxxxxxxx
>>>WWW.PensacolaTVRepair.Com
>>>
>>>850-456-5995 voice
>>>850-458-6369 fax
>>>
>>>
>>>Al L wrote:
>>>
>>>>I need to know if the micro and the T chip have their own separate 
>>>>clocks
>>>>or
>>>>do they share one..
>>>>    The remote and infra red pick up produce pulses at the input of
>>>>micro,but when locked up,there seem to be no pulses on the clock pins of
>>>>the
>>>>T chip,or micro.If I float the micro should I have clock pulses on one
>>>>chip,
>>>>the good one?
>>>>   The buttons on front fire up the set,do volume,and produce the
>>>>menu.About
>>>>the time I get to auto program,the menu disappears, and I am stuck with
>>>>one
>>>>channel.Sometimes it turns off.
>>>>   Any ideas,or does someone have an old training manual for this
>>>>set?TIA.
>>>>
>>>>Al Leatherman
>>>>224 RT. 46
>>>>Mine Hill, NJ 07803
>>>>973-361-5796
>>>>WWW.ALS-TV.NET
>>>>
>>>>
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