[TechAssist] Re: Panasonic TV/ VCR PV-M1358W-K Chassis KM-138, blackbox on screen

  • From: John at Main TV <maintv@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 16 Jul 2003 15:19:34 -0600

The customer has switched the closed-caption functtion to the text mode. 
  Just turn it off in the menu ( and charge him for a upc--- Just 
joking!!!!).   John.

Gary McCartney wrote:
> Customer called me up and says that he was adjusting the clock in the
> menus and from then on he has a big black box on the screen (all except
> the outer edges of the screen which the picture shows through).
> Sometimes the letters [ffff] in white lettering show up in the top left
> corner of this black box. When he changes channels, the picture is ok
> for about 5 seconds then the black box returns. Problem occurs during
> VCR playback also. The regular green colored on-screen graphics are
> functioning normally.
> 
> Does anyone know if this is just some kind of microprocessor glitch that
> can be reset somehow, or a menu option to escape this, or is there a
> defect in the circuitry? I told him to leave the set unplugged for a few
> hours but warned him that it probably wouldn't solve it. If it is the
> circuit, I won't be able to work on it for a week.
> 
> Thanks for any help.


-- 
John Mielke
Main TV
Longmont,Co 80501
303 776 6955
303 776 0792  fax
maintv@xxxxxxxxxxx


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  • » [TechAssist] Re: Panasonic TV/ VCR PV-M1358W-K Chassis KM-138, blackbox on screen