Cr 4118 interrmittent Phillip R Hull phil245@xxxxxxxxxxxxx ----- Original Message ----- From: "Mike Barnett" <passthecash@xxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Tuesday, November 13, 2001 11:35 AM Subject: [TechAssist] RCA Chassis CTC169BG2 No Power > > Hey Guys, Need some help w/ this one. Here's how it goes, Set came in with > no power and loses color Intermit complaint. looked around and did'nt find > anything out of the ordinary. I replaced the three caps in chopper > curcuit(c4102,c4104,c4108) was also missing vcc run voltage at pin 16 of > u4101, changed it too. re-assembled and set came up. unit was running good > all voltages seem to be good with the exeption of cr4102 was quite a bit > low. still had the intermit color. when changing channels it take about 1 > second to have colorand accationally the pic would go to b+w. also then the > set would shut down losing 200v.. At pin 16 of u4101 still had runvcc v but > missing3v at cathode of cr4102. even when the set was running the voltage at > cr4102 is very low/about 1.5v. this is supposed to be 3vdc? The set shut > down and now will not power up at all. Have 170 @ collector of q4101 and 12v > at pin 16 of u4101. missng 200v from pin 10 of fly and checked r4703. > checked pin 16 on ICu1001 for 5.7vdc and is missing, checked Q2906 it was > good but i changed it anyway with ECG288. Still didn't fix. Have 180v at > collector of Q4402 and cr4401. > Changed horizonal retrace cap c4401 and changed c4402 and cr4403. > CAN ANYONE HELP WITH THIS??? I'm Going outa my mind. > > TIA > Mike Barnett > > > > > > > > > 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.