[TechAssist] Re: Sony KV-27FS12 chassis BA5 thumping sound
- From: tjanphyl@xxxxxxxxxxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 20 Jul 2005 15:04:42 -0400
If the thumping sound is coming thru the speakers, look and see if
this set uses an upright regulator on the power supply G board. (There
is a small black flat square upright pack behind it.) TO-220 case with
about 7 pins for the 9VDC regoutput.I'm at home so can't be exact. I
have changed several of those for that.
Phil
Phil Bader, Pres.
Jan Phyl TV Inc
Winter Haven, Fl
(863) 299-8821
estab. 1976
----- Original Message -----
From: Ben Daniels <bens74820@xxxxxxxxx>
Date: Wednesday, July 20, 2005 3:00 pm
Subject: [TechAssist] Sony KV-27FS12 chassis BA5 thumping sound
> This set had D513 bad in power for verticle -15 volt
> source. When you turn on now you have reduced b+ with
> thumping sound. Disconnect H/O transistor and the 130v
> comes to normal with good drive wave form and
> voltages. Anyone had this before? I am thinking maybe
> hvt??? Thanks Ben
>
> Randy Daniels
> Ben's TV Repair
> 123 Arlington St.
> Ada, Okla. 74820
> bens74820@xxxxxxxxx
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> -------------------------------------------------------------------
> ----------
> This Email List is Public. Remove: http://www.tech-
> assist.org/remove.htmSet Vacation
> mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacationLost
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
Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
