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 >> >> >> ----------------------------------------------------------------------------- >> This Email List is Public. Remove: http://www.tech-assist.org/remove.htm >> Set Vacation >> mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation >> Lost Password: http://www.tech-assist.org and select "Login Problems?". >> Email Archives: //www.freelists.org/archives/techassist/ >> >> > ----------------------------------------------------------------------------- > This Email List is Public. Remove: http://www.tech-assist.org/remove.htm > Set Vacation > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/