[TechAssist] Re: Toshiba CX28510, TAC9005, brightness problem

  • From: Kevin <kevintv@xxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 08 Mar 2004 23:12:19 -0800

D866 was shorted, but when I replaced it with 2-15 volt zener diodes,
there was no change.  Either there is something else wrong in the same
circuit, or I need 1-30 volt zener diode.  I will try to find a 30 volt
zener somewhere.

Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx 
 

-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Intrepid Video
Support
Sent: Monday, March 08, 2004 7:13 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Toshiba CX28510, TAC9005, brightness problem

Kevin,
See if this helps, from Tech Repair CD;
TOSHIBA\CX28510\BLOOMING PROBLEMS WITH CHANGED IN SCREEN
BRIGHTNESS\\\\D866* 30V ZENER SHORTED\\\\\\\\



Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net

----- Original Message ----- 
From: "Kevin" <kevintv@xxxxxxx>
To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 08, 2004 4:14 PM
Subject: [TechAssist] Toshiba CX28510, TAC9005, brightness problem


This set has a problem with the brightness circuit.  When this set is
first turned on, the picture is black.  When the OSD brightness is
increased a little bit the picture comes on and is washed out.  I can
then turn the brightness down for an OK picture.  But if I change
channels the picture goes black again.  The OSD is still visible.  TIA

Kevin Wilks
Kevin's TV & Video Repair
Penticton BC Canada
kevintv@xxxxxxx 
 



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