Thanks On Tue, 16 Oct 2001 18:09:26 -0600, techassist@xxxxxxxxxxxxx wrote: > > I am an authorized Zenith repair center. Tomorrow I will call zenith tech > support and ask them if they have heard of this problem I will let you know > tomorrow night. > ----- Original Message ----- > From: "Mike Barnett" <passthecash@xxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Tuesday, October 16, 2001 12:39 PM > Subject: [TechAssist] Re: Zenith module# 9-1426 power supply problem > > > > > > The transisor they refer to is qx3401//IRF830=nte2398. I replaced this, > the > > squeel has lowered in noise but is still noticable. Not sure what else to > > do. I guess it's time to send it home. > > If anyone has a good resalution to this problem please post. > > > > Thanks > > Mike > > > > > > > > > > On Mon, 15 Oct 2001 21:27:02 -0600, techassist@xxxxxxxxxxxxx wrote: > > > > > > > > I also had one of these repaired by PTS and it has a squeel in standby > I > > > never found the problem but PTS said its a bad transistor near the back > > left > > > corner of the module that has a heat sink attached to it the transistor > > was > > > out of sink with the coil it goes to it worked fine just squeeled in > > > standby. > > > ----- Original Message ----- > > > From: "Mike Barnett" <passthecash@xxxxxxxxxx> > > > To: <techassist@xxxxxxxxxxxxx> > > > Sent: Monday, October 15, 2001 12:02 PM > > > Subject: [TechAssist] Zenith module# 9-1426 power supply problem > > > > > > > > > > > > > > This unit came in with horizonal retrace lines and no video, Checked > > video > > > > out transistors on crt board and found only 12vdc on collector. > > > > replaced rx3277/2.7ohm 1/2 watt resistor. This took care of the > > problem. > > > The > > > > set works fine exept for squeel coming from qx3401 when set is in > > stanby. > > > I > > > > checked all caps in this caps in this curcuit, all are fine. Anyone > > know > > > > what might be causing this device to squeel? > > > > > > > > TIA, > > > > Mike > > > > > > > > > > > > > > > > Get It Fixed At > > > > Rochester Electronics > > > > 630 West Ridge Rd. > > > > Rochester, NY 14615 > > > > 716.663.6870 > > > > www.RochesterElectronicsRepair.com > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________________ > > > > Send a cool gift with your E-Card > > > > http://www.bluemountain.com/giftcenter/ > > > > > > > > > > > > Help make your TechAssist online repair tips > > > > database better! Submit your fixes here: > > > > http://www.circuitwork.com/techassist/tip/#tips > > > > To unsubscribe write to: > > > > techassist-request@xxxxxxxxxxxxx > > > > with unsubscribe in the subject line. > > > > > > Help make your TechAssist online repair tips > > > database better! Submit your fixes here: > > > http://www.circuitwork.com/techassist/tip/#tips > > > To unsubscribe write to: > > > techassist-request@xxxxxxxxxxxxx > > > with unsubscribe in the subject line. > > > > > > Get It Fixed At > > Rochester Electronics > > 630 West Ridge Rd. > > Rochester, NY 14615 > > 716.663.6870 > > www.RochesterElectronicsRepair.com > > > > > > > > > > > > _______________________________________________________ > > Send a cool gift with your E-Card > > http://www.bluemountain.com/giftcenter/ > > > > > > Help make your TechAssist online repair tips > > database better! Submit your fixes here: > > http://www.circuitwork.com/techassist/tip/#tips > > To unsubscribe write to: > > techassist-request@xxxxxxxxxxxxx > > with unsubscribe in the subject line. > > Help make your TechAssist online repair tips > database better! Submit your fixes here: > http://www.circuitwork.com/techassist/tip/#tips > To unsubscribe write to: > techassist-request@xxxxxxxxxxxxx > with unsubscribe in the subject line. Get It Fixed At Rochester Electronics 630 West Ridge Rd. Rochester, NY 14615 716.663.6870 www.RochesterElectronicsRepair.com _______________________________________________________ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.