[TechAssist] Re: RCA P60920BL PTK195KC vert. problems FIX
- From: "Larry E" <videotech@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 25 Apr 2005 15:21:41 -0400
Robert, thanks for your reply those caps all checked good, Fix for this unit
was CR14501 across pins 2 & 6 of vert. IC. This diode checked good on
a diode tester!!!!! Must break down under a full load, sooooo replace
instead of checking this diode if the bottom 1/2 of the screen is all black
and
the top is nothing but lines, Larry E
Larry Eastman
American TV & Electronics
Crystal River, Fl. 34428
----- Original Message -----
From: "Larry E" <videotech@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, April 20, 2005 4:39 PM
Subject: [TechAssist] RCA P60920BL PTK195KC vert. problems
> Hi Guys, working on a RCA P60920BL 195 chassis with what looked like a
converg.
> problem initially, 3 bowed lines in the center of the screen, top half
looks like it has
> severe foldover or loss of sync (without the rolling, hard to describe)
bottom half of
> the picture is black, audio is also missing, found no output voltages
on the little aux board, replaced the board and got all voltages back but
the symptom is exactly the same, checked the vertical IC and voltages were
all low except pin 2, unsoldered
> pins 1 & 7 and voltages came back up except pin 6 it was 8.9v now with
pins 1 & 7
> unsoldered it`s 12.5 volts, I have never seen this symptom on a 195
chassis before
> obviously U14501 is bad but is there anything else that you guys have
seen? I
> can`t figure out why I don`t have any audio with a blown vertical IC, any
help is
> greatly appreciated, Larry E
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
> --------------------------------------------------------------------------
---
> This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
> Lost Password: http://www.tech-assist.org and select "Login Problems?".
> Appliance Repair List:
http://www.tech-assist.org/secure/tip/chatjoin.htm#app
> 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?".
Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
