[TechAssist] Re: Projo RCA CTC169 Dead with wrong standby voltages
- From: Warren <warrenca@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 04 Mar 2005 22:53:01 -0500
Sorry I forgot a sig file
Warren Campbell
Campbell's TV & Appliances
Cannington Ont
Warren wrote:
>Hi all!
>
>I will list the work so far:
>
>15 V standby = 14.2
>5V standby =4.9V
>Raw B+=151V
>Regulated B+ is too high I think ...The meter does not like the signal
>at TP4101 some times 197V sometimes 1.97V??
>Should the Reg B+ be 143V before turn on????
> From cathode of CR4106 to Cathode of CR4101 first I had 2 Volts.... Now
>after changing diodes I get 3 volts???
>Should be under 1 Volt.
>
>Installed a startup kit from Global Q4101, U4101, C4102, C4118, C4108
>(47uf) which also was a 47UF before.
>My schematic shows 39uf ?? does this make a difference??
>Caps were installed first with Q4101 , IC U4101 was installed afterwards.
>Also changed C4104(15uf) with also no change.
>I also tried to isolate the H out (curiosity) - no change
>
>I've read many tips but most of these point to the parts that I've
>already changed.
>Can someone brush up my 169 skills.
>What am I missing??
>Does anyone have a troubleshooting flow chart for the 169?? This would help.
>
>BTW when you push the on button you can see the front led give a slight
>single blink.
>
>TIA all !
>All tips and comments welcome.
>-----------------------------------------------------------------------------
>This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
>Lost Password: http://www.tech-assist.org and select "Login Problems?".
>Email Archives: //www.freelists.org/archives/techassist/
>
>
>
>
-----------------------------------------------------------------------------
This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
