Larry - I have a schematic for a CTC187CL3 if you want me to scan some of it. Max Bonnell Bonnell TV Robinson, IL Sender: techassist-bounce@xxxxxxxxxxxxx From: videotech@xxxxxxxxxxxx(Larry=A0E) Date: Thu, Sep 30, 2004, 1:21pm (CDT+1) To: techassist@xxxxxxxxxxxxx Subject: [TechAssist] Re: RCA G35772AT CTC187CL DEAD/More info Reply=A0to: techassist@xxxxxxxxxxxxx Hi Guys, replaced the eprom and still have the same problem, zero volts on pin 6, 4.32 on pin 8&5. Unsoldered pin 54 of U1001 thinking it might have been pulling it down, no change, Q4105 is supposed to be the 5v standby source? (no schematic) I have ( measured to cold ground) E=3D 4.77 B=3D 5.1 C=3D 11.7 volts. Coul= d the 4.32 be too low on pins 8 & 5 ? I was told pins 5&6 get the 5 volts from pin 8 of U3201 so I`m still confused how pin 5 can have 4.32 but pin 6 would be zero if the source is internally from pin 8 even with a new eprom installed, HELP!!! =A0 Larry E Larry Eastman American TV & Electronics Crystal River, Fl. 34428 Larry E wrote: Hi Guys, this 187CL is stone dead, no click from relay, HOT is good, have 160 v on collector in standby, resoldered H- driver transformer and the coil, C4107 is good, found a bad C4105 10uf @ 200 replaced it with no change, I need to know if the voltages are correct on U4101 as I don`t have the schematic, they are Pin 1=3D -40 2=3D -33 4=3D 0 5=3D .9 6=3D .9 7=3D .4 8&9 =3D 0 11&12 =3D 165 thanks in advance, Larry E Larry Eastman American TV & Electronics Crystal River, Fl. 34428 ---------------------------------------------- Lost Password: ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/