Thanks Jim but the kit only contains the EPROM is that all you need now? Al Marquardt ampm@xxxxxxx Al Marquardt Electronic Repair 206 W Main Girardville Pa. 17935 ----- Original Message ----- From: "Jim Myers" <jr.myers@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Monday, December 20, 2004 11:15 AM Subject: [TechAssist] Re: RCA F35755MB CTC179DK need INFO on micro kit > Here's da poop: (The kit you need, 229782, is superseded by 229778) > > Symptom: A failure of an I2C bus device will prevent the TV from turning > on. If a device has failed, its address > is supposed to be stored in an error code area of the EEPROM, and > displayed when the service > mode is entered. On some early production sets, the error codes will not > be stored. > Cause: An error in the microprocessor code prevents the set from coming > on in the service mode to > display the error code. A bit in the EEPROM is set to prevent the > microprocessor from checking for > the error code. > Cure: Replace both the microprocessor and EEPROM. For the CTC178 and > CTC179 chassis, the > microprocessor with the error is marked -97H or before. The > microprocessor with the corrected code > is marked -97I or later. For the CTC188 and CTC189 chassis, the > microprocessor with the error is > marked -98C or before and the microprocessor with the corrected code is > marked -98D or later. Both > the microprocessor and EEPROM must be replaced. The microprocessor and > EEPROM come > packaged together as a kit. Refer to the following table for the chassis > to kit stock number cross > reference. > CTC178J, L 229782 > CTC179BJ, CJ, DJ 229780 > CTC179CK, CM, DK, DL 229782 > CTC188A 230055 > CTC189DA, DB 230055 > NOTE: To prevent having to align the chassis after replacing the EEPROM, > record the values stored in the > original part and use those values for the new part. If this is not > done, the complete chassis and > tuner alignments must be performed. > > > > ******************************************************************************************************************* > Since 1972 > Jim Myers > Telrad Electronics > Fort Wayne, Indiana > > al m wrote: >> Does this set have to have the micro and the EPROM replaced together or >> can >> I just put in the EPROM. Set came in shutting down, then went to 3 tries >> and >> then shutdown, bending the board turned it on. Resoldering the tuner >> fixed >> the intermittent turn on but now it's stuck in video mode and the menu >> won't >> come up. I see Tritronics has a kit but it's NLA. Can I get by with just >> the >> EPROM? This set has a EPROM marked 97E which from tips I have says you >> must >> replace the two together. If so does anyone have a used micro and EPROM >> for >> the DK chassis? Thanks. >> Al Marquardt >> ampm@xxxxxxx >> Al Marquardt Electronic Repair >> 206 W Main >> Girardville Pa. 17935 >> >> >> >> ----------------------------------------------------------------------------- >> Lost Password: >> http://www.tech-assist.org and select "Login Problems?". >> Email Archives: >> http://www.freelists.org/archives/techassist/ >> > > ----------------------------------------------------------------------------- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > http://www.freelists.org/archives/techassist/ > > ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: http://www.freelists.org/archives/techassist/