Peter do you have a scat? My scat says 7.5V on pin 20, it's the horizontal B+. It comes from Q4115 the standby switch. The voltages on it are E=12V C=12V B=11.4V pin 29 is the standby pin on micro. al marquardt ampm@xxxxxxx ----- Original Message ----- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Wednesday, October 30, 2002 11:14 PM Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996 > > Pin 20 of u1001 reads 4.8V > > Peter Oliver > Tucson Radio TV > > > From: "al m" <ampm@xxxxxxx> > Reply-To: techassist@xxxxxxxxxxxxx > To: <techassist@xxxxxxxxxxxxx> > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996 > Date: Sun, 27 Oct 2002 12:46:15 -0500 > > > do you have your 7.5v on pin 20 of U1001 > al marquardt > ampm@xxxxxxx > > > ----- Original Message ----- > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx> > To: <techassist@xxxxxxxxxxxxx> > Sent: Sunday, October 27, 2002 9:51 AM > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996 > > > > > > The 5V supply is present at the front buttons. > > > > Peter Oliver > > Tucson Radio TV > > > > > > > > From: "al m" <ampm@xxxxxxx> > > Reply-To: techassist@xxxxxxxxxxxxx > > To: <techassist@xxxxxxxxxxxxx> > > Subject: [TechAssist] Re: RCA CTC185AB Dead F25216WT may 1996 > > Date: Sun, 27 Oct 2002 08:13:58 -0500 > > > > > > You don't mention the 5V supply anywhere. Do you have a scat? > > al marquardt > > ampm@xxxxxxx > > > > > > ----- Original Message ----- > > From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx> > > To: <techassist@xxxxxxxxxxxxx> > > Sent: Saturday, October 26, 2002 5:34 PM > > Subject: [TechAssist] RCA CTC185AB Dead F25216WT may 1996 > > > > > > > > > > > > > RCA model F25216WT > > > Chassis ctc185AB > > > MFD May 1996 > > > Symptom DEAD no flux at plug in no attempt to start or turn on > > > > > > Has voltage > > > Q4114 D=165V, S=162V, G= 135V > > > > > > Q4401 H.O.T Collector = 162V > > > > > > U4107 (12V reg) pin 1 (in)= 27V pin 3 (out)=11.9 > > > CR4110 cathode= 27.8V > > > saw tip for CR4704 replaced no change. > > > > > > The regulator and H.O.T. test normal in circut this set still has the > > > electoltic in regulator circurt.. I have the regulator KIT but it > doesn't > > > have all the symptoms, ie usually the regulator blows. The customer > said > > it > > > just stopped working.. Any ideas > > > > > > > > > Peter Oliver > > > Tucson Radio TV > > > > > > > > > > > > > > > _________________________________________________________________ > > > Unlimited Internet access for only $21.95/month. 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