[TechAssist] Re: Hitachi 61UDX10B, replaced HOT, only lasted 15 hours.

  • From: Al Gutz <alg@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 22 Nov 2005 22:05:24 -0500

Check the operating temperature of the HOT. If it's running at 80 or 85 
deg. it's not going to last very long.

Al G

Kevin's TV Repair wrote:
> I used the exact same transistor, but not from Hitachi.  Maybe that is
> my problem, but why did the original HOT fail the first time, and the
> replacement last only 15 hours the second time?  I need to find the
> cause of the first failure.  I am hoping it is not one of the picture
> tubes arcing.  
> 
> Kevin Wilks
> Kevin's TV Repair
> Penticton BC Canada 
> kevintv@xxxxxxx
> 
> 
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Shoreline
> Electronics
> Sent: Tuesday, November 22, 2005 5:30 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Hitachi 61UDX10B, replaced HOT, only lasted 15
> hours.
> 
> Probably just a fluke....
> 
> Did you use a good quality (oem?) replacement?
> 
> Install a fresh one & let her run again
> 
> ==========================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> 860-399-1861
> 860-664-3535 (fax)
> jstielau@xxxxxxxx
> ========================
> 
> ----- Original Message ----- 
> From: "Kevin's TV Repair" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, November 21, 2005 7:37 PM
> Subject: [TechAssist] Hitachi 61UDX10B, replaced HOT, only lasted 15
> hours.
> 
> 
> 
>>This is a monster set.  I brought just the chassis back and carefully
>>checked everything over.  I replaced a shorted Q777 (C5681), an open
>>FP05 (3 amp fuse) and took the chassis back.  The set fired up right
>>away with a good picture.  But it only lasted about 15 hours.  Any
>>suggestions?  I do have the SM off the Hitachi but am at a loss as to
>>why it would last only 15 hours.  I am hoping I don't have to bring
> 
> the
> 
>>whole set in.  Thanks.
>>
>>Kevin Wilks
>>Kevin's TV Repair
>>Penticton BC Canada
>>kevintv@xxxxxxx
>>
>>
>>
>>
> 
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