According to Sams 4511 it should be a 32v part numberRH-EX0673GEZZ. I am not sure if I know the exact purpose of that diode. John. John Mielke Main TV 636 main St. Longmont, Co phone 303 776 6955 fax 303 776 0792 maintv2004@xxxxxxxxxxx ----- Original Message ----- From: "David Lessard" <mr_fixit@xxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Sunday, June 20, 2004 7:19 AM Subject: [TechAssist] Re: Sharp 27" TV - CN27S18 - Turn ON then OFF > I need the value of D713 near STRF6626 regulator. I believe it's 30V but > I'm not sure. This zener is shorted. Could it be the cause of the > problem described below? Does anyone have a print for this model? > > Thanks, > > David Lessard > mr_fixit@xxxxxxxxxxxx > > -----Original Message----- > From: techassist-bounce@xxxxxxxxxxxxx > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of David Lessard > Sent: Friday, June 18, 2004 2:09 PM > To: techassist@xxxxxxxxxxxxx > Subject: [TechAssist] Re: Sharp 27" TV - CN27S18 - Turn ON then OFF > > I should elaborate on this problem. There seems to be no +B from the > switching regulator. I do hear the relay activate and I can trace AC to > the regulator circuitry but that's it. Standby voltages are obviously > working because the micro is responding to panel buttons and the remote > causing the relay to activate. I imagine the micro is also monitoring > the +B or some secondary FBT voltage, if it's not present the micro > turns off the relay. Question is, does the SMPS in this chassis fire up > when the relay activates or is it always on like in the RCA chassis's? > Are those STR=F6626 regulators a common failure? > > Thanks again, > > David Lessard > mr_fixit@xxxxxxxxxxxx > > -----Original Message----- > From: techassist-bounce@xxxxxxxxxxxxx > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of David Lessard > Sent: Friday, June 18, 2004 1:25 PM > To: techassist@xxxxxxxxxxxxx > Subject: [TechAssist] Sharp 27" TV - CN27S18 - Turn ON then OFF > > When I press the "ON" button I hear the relay "click" ON then two > seconds later it "clicks" OFF. Protection? What are the common (if any) > causes for this problem? HOT is good, standby voltage is good, what else > should I look at? No schematic here. > > > Thanks in advance. > > > > David Lessard > > Alexandria Electronics > > 50 Harrison Street > > P.O. Box 1366 > > Alexandria, Ontario. > > Canada > > K0C-1A0 > > mr_fixit@xxxxxxxxxxxx > > > > > > > ------------------------------------------------------------------------ > ----- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > > > ------------------------------------------------------------------------ > ----- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > > > -------------------------------------------------------------------------- --- > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/