LeRoy. Video Buffer may be at fault. Not sure Q905 or Q906. Let you know in the morning. Front center of chassis. -Ed- -- Tel-Tek Electronics Ontario-Canada teltek3@xxxxxxxxxxxx teltek@xxxxxxxxx > From: LeRoy Westlund <llw@xxxxxxxxxx> > Reply-To: <techassist@xxxxxxxxxxxxx> > Date: Mon, 30 May 2005 18:40:16 -0600 > To: TechAssist <techassist@xxxxxxxxxxxxx> > Subject: [TechAssist] RCA F35731MB CTC169JS6 - Shuts off when signal source > is connected. > > Hi members, > This set will run all day with raster only. As soon as I hook up a signal > source (Antenna, or external input), it will shut off after about 10 > seconds. Picture is beautiful, and all voltages from the power supply read > normal, for that length of time. > When it shuts off, I have to unplug the power for at least 5 minutes, before > my standby voltages will return. > > Parts replaced so far, with OEM part numbers : > Regulater chopper output. (200165) > Regulator IC (200419) > Regulator caps. (2.2 @ 100 195691),(15 @ 63 214756),(470 @ 35 190496),(39 @ > 100) > Horz cap (.48 @ 250 197518), CR4118 (164589), C4703 (47 @ 250). > B+ cap (470 @ 180 200147). > Tested luminance buffer Q2906= OK. > > Voltage readings: > B+ = standby = 143.2 (Run = 138.2)(adjusted B+ standby for 140, no help). > CR4118 = standby = 13.4 ( Run = 12.1) > Voltage Q4101-Base = standby = -.19 ( Run = -1.4) > > If I pull the CRT socket, set will run OK, and not shut-off. > Works the same on my 27" test jig in the shop, as it does hooked up in the > home, to the original Yoke / CRT load combination. > > Would it be wise to replace the IFT at this stage of the game ? Customer > does not want to spend more then $200 for this repair. I may need to refund > about $100-165, that I already collected. It worked for about 1/2 hour when > I first took it back, but, it went out again after customer already paid me. > > Anymore help on this would be appreciated. > LLW > > LeRoy Westlund > Westlund TV & Electronics > 97 North Main " I forgot,..to remember,.. > Centerfield, UT 84622-0087 to forget " > Ph./Fax 435-528-3822 > mailto:LLW@xxxxxxxxxx > > > ----------------------------------------------------------------------------- > This Email List is Public. Remove: http://www.tech-assist.org/remove.htm > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app > Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app Email Archives: //www.freelists.org/archives/techassist/