[TechAssist] Re: Projo RCA CTC169 Dead with wrong standby voltages
- From: Warren <warrenca@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 05 Mar 2005 19:20:48 -0500
Ron
Here is the exact numbers
Mod. P46100TN
Chassis # CTC169HN
Also on the back PTK169HNA C
Warren C
Ron Miller d.b.a. Country TV wrote:
>Is this a DV or PRJO? You need to provide complete model and chassis
>numbers.
>Country TV
>Ron Miller
>Inez, TX. 77968
>
>----- Original Message -----
>From: "Warren" <warrenca@xxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Friday, March 04, 2005 9:47 PM
>Subject: [TechAssist] Projo RCA CTC169 Dead with wrong standby voltages
>
>
>
>
>>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/
>
>
>
>
-----------------------------------------------------------------------------
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:
