Thanks Bob,...but, I have saved that post from last time. Already checked everything suggested. (More then once). I need some NEW suggestions on this one. I have the factory remote,...but, it won't reset the eeprom. Regards, LLW LeRoy Westlund Westlund TV & Electronics " It's such a pretty world 93 North Main today !.... Centerfield, UT 84622-0087 Look at the Sunshine. " Ph./Fax 435-528-3822 :-) mailto:LLW@xxxxxxxxxx -----Original Message----- From: Gemini Computer & TV <geminitv@xxxxxxxxxxxxxxxx> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx> Date: Thursday, November 21, 2002 4:22 PM Subject: [TechAssist] Re: Philips / Magnavox TS2744C103 Chassis # 27B8 No Video, no OSD, Sound is OK. > >Leroy, >See if any of these apply: > >Symptom: Dim raster with faint colored bars from top to bottom. No response >to changes of video, no menu or graphics on the screen. >Cause: The beams in the CRT are deflected into the CRT neck and scatter at >random across the screen. This is caused by either a loss of Minus 13.5 >volts to IC500 (vertical out) or IC500 itself. >Cure: Check and replace as needed; R420, D409, C419, IC500. > >---------------------------------------------------- > >Symptom: High Voltage (EHT) remains but there is no: >OSD - Menu >Video - Raster >Sound >There may be a faint line across the top of the CRT. >Cause: Information in the EEPROM (IC346) is incorrect. This results in >deadlock of the BIMOS Signal Processor. Caused in one instance when >Register 66 on Service Page A was adjusted to FF and stored. >Cure: If in the Service Mode exit by pressing 9, then + (volume up). The >set will shut off. Power on and enter the Service Mode by 06-25-95-MENU. >Press A/CH (Surf). ROM defaults will be written to the EEPROM and normal >operation will come back. >Note: At this point all items in the Service Mode will have to adjusted for >proper operation. > > >Bob Waterman, CET® #RI-28 >Master Technician License #9109 >Service Manager >Gemini Computer, TV, & Security Alarms >(508)695-7302 >(508)695-7769 FAX >geminitv@xxxxxxxxxxxxxxxx >geminitv@xxxxxxx > > >----- Original Message ----- >From: "LeRoy Westlund" <llw@xxxxxxxxxx> >To: "TechAssist" <techassist@xxxxxxxxxxxxx> >Sent: Thursday, November 21, 2002 12:04 PM >Subject: [TechAssist] Philips / Magnavox TS2744C103 Chassis # 27B8 No Video, >no OSD, Sound is OK. > > >> >> Hi members, >> I have fixed 2 or 3 of these sets for the traditional Vertical problems. >> This one is giving me nightmares. >> >> After replacing IC500, D409, and R420, my vertical seems to be OK,...but, >> now I have a dark screen, with NO video or OSD. There is a white line >across >> the top, about 1/2 inch thick. If I turn up my screen control, it goes to >> gray raster, with retrace lines. >> >> I have found about 20 fixes for this problem. They all seem to be >Vertical, >> or IC500 related. Also,...some have been fixed by replacing the Eprom. >> I have rechecked my work in the vertical area.(NO lifted traces.). >> I have replaced the Eprom (NO change), but can't access the service menu, >> due to the NO OSD problem. I have replaced IC271.(problem remains). >> The voltages on IC500 are: >> Pin # 1 - .4 volts >> 2 - +12.5 >> 3 - -10.5 >> 4 - -12.5 >> 5 - .2 >> 6 - +13.5 >> 7 - .4 >> I have also had to replace R58 (20 ohms), and IC 52 (TDA6106Q), on the CRT >> board.(For shutdown problems). >> In other words,...This set had multiple problems,...but, now,...there is >> ONLY ONE problem left. Hate to junk it after spending so much time and >money >> on it,...But,..it is now becoming a matter of principal. I will not >> rest,...until I find, and fix this problem ! >> >> Any help is appreciated, >> LLW >> >> LeRoy Westlund >> Westlund TV & Electronics " It's such a pretty world >> 93 North Main today !.... >> Centerfield, UT 84622-0087 Look at the Sunshine. " >> Ph./Fax 435-528-3822 :-) >> mailto:LLW@xxxxxxxxxx >> >> >> ------------------------------------------ >> To REMOVE your email address, click here: >> http://www.tech-assist.org/unsubb.html >> To CHANGE your email address, click here: >> http://www.techassist.net/forms/change.html >> ------------------------------------------ >> ***NEW*** Tips Added Instantly!!!*** >> Submit Repair Tips here: >> http://www.tech-assist.org/secure/tip/ >> > >------------------------------------------ >To REMOVE your email address, click here: > http://www.tech-assist.org/unsubb.html >To CHANGE your email address, click here: > http://www.techassist.net/forms/change.html >------------------------------------------ >***NEW*** Tips Added Instantly!!!*** >Submit Repair Tips here: >http://www.tech-assist.org/secure/tip/ > ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/