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

  • From: Kevin <kevintv@xxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 09 Mar 2004 13:33:32 -0800

I put them in series.  I think I still have a second problem with the no
video problem so I will use them as a test for now.

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
tvservice@xxxxxxxxxxxxx
Sent: Tuesday, March 09, 2004 6:33 AM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Toshiba CX28510, TAC9005, brightness problem

Did you parrallel or series the zeners
you should series 2-15's to get 30
but I only recommend as a test
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
Dallas, TX

----- Original Message ----- 
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, March 09, 2004 1:12 AM
Subject: [TechAssist] Re: Toshiba CX28510, TAC9005, brightness problem


> 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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