[TechAssist] Re: Toshiba Model 53H71 Chassis 0160 , F850 , F 851 , and F852 keep blowing

  • From: "Bill Grabowski" <bgrabowski@xxxxxxxxx>
  • To: <techassist@xxxxxxxxxxxxx>
  • Date: Wed, 8 Mar 2006 19:35:38 -0600

I've found that these newer Toshiba's don't like the STK392-150's let alone 
the 180's. If it has STK392-110's put the same back. And of course use a 
good source fro Sanyo IC's.
Just my 2 cents.................
**********************
Bill Grabowski
Triangle Appliance
3813 Roosevelt Rd
Kenosha WI  53142
262-694-6500
262-694-6523   fax
bgrabowski@xxxxxxxxx
**********************

----- Original Message ----- 
From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, March 08, 2006 12:52 PM
Subject: [TechAssist] Re: Toshiba Model 53H71 Chassis 0160 , F850 , F 851 , 
and F852 keep blowing


> Larry, 1st the unit was shutting down after 1-3 hours. I replaced the conv
> i.c's and same thing, then reflowed staples and coils, then it shutdown
> immediately. I found open fuses. Could not get unit to stay on after
> that.Replaced fuses and it took them out right away. I then replaced stk's
> with stk392-180 and replaced fuses and rechecked staples/coils, same
> thing/open fuses! Checked my work carefully, but can't find any solder
> bridges/mistakes/nothing!
> Could the 180's be my problem??
>
> Dan W
> Wizard Electronics
> wizhd@xxxxxxxxxxxxxxxx
> ----- Original Message ----- 
> From: "Larry E" <videotech@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, March 08, 2006 11:42 AM
> Subject: [TechAssist] Re: Toshiba Model 53H71 Chassis 0160 , F850 , F 851 
> ,
> and F852 keep blowing
>
>
>> Dan, the 150`s are the "better" replacement STK`s for the 110`s, did you
>> replace the 3 fuses, solder both staples and replace the STK`s all at the
>> same time? Replacing the fuses and STK`s without re-soldering the staples
>> and then starting the set will short out one of the stk`s (pin 8 and 2
>> others on my set shorted to ground) Larry E
>> Larry Eastman
>> American TV & Electronics
>> Crystal River, Fl. 34428
>> ----- Original Message -----
>> From: "Dan Williams" <wizhd@xxxxxxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Wednesday, March 08, 2006 12:24 PM
>> Subject: [TechAssist] Re: Toshiba Model 53H71 Chassis 0160 , F850 , F 851
>> ,
>> and F852 keep blowing
>>
>>
>>> Mehdi, don't mean to steal your show,but I am having trouble with a
>> toshiba,
>>> same symptom. Is STK392-180 a good upgrade for STK392-110  ??? i have
>>> done
>>> the jumpers and stk's but still opens fuses at turn-on.
>>>
>>> Dan W
>>> Wizard Electronics
>>> wizhd@xxxxxxxxxxxxxxxx
>>> ----- Original Message -----
>>> From: "Shaun" <satguy@xxxxxxxxxxxxx>
>>> To: <techassist@xxxxxxxxxxxxx>
>>> Sent: Wednesday, March 08, 2006 11:19 AM
>>> Subject: [TechAssist] Re: Toshiba Model 53H71 Chassis 0160 , F850 , F 
>>> 851
>> ,
>>> and F852 keep blowing
>>>
>>>
>>> > Either that or the loose connection on the pc board L7711 if I 
>>> > remember
>>> > right.
>>> >
>>> > Shaun
>>> >
>>> > Advanced Electronics
>>> > 224 West Riverview Ave.
>>> > Fort Morgan, CO 80701
>>> > ----- Original Message -----
>>> > From: "Nova Service Center" <mehdi@xxxxxxxxxx>
>>> > To: <techassist@xxxxxxxxxxxxx>
>>> > Sent: Wednesday, March 08, 2006 9:49 AM
>>> > Subject: [TechAssist] Toshiba Model 53H71 Chassis 0160 , F850 , F 851 
>>> > ,
>>> > and
>>> > F852 keep blowing
>>> >
>>> >
>>> >> Hi Everyone
>>> >>
>>> >> This Toshiba tv model # 53H71  and Chassis # TAC 0160  had a
>> convergence
>>> >> problem about 10 months ago . I replaced convergence IC's and tv
>>> >> worked
>>> >> fine. Now customer called me and tv is dead. I went there and find
>>> >> that
>>> >> F850 and F851 ( 5A fuse ) and F852 ( 2A fuse ) were bad , replaced
>>> >> them
>>> >> and they blown again. I do not have service manual to check and see
>> what
>>> >> are those fuses suppose to protect ? Could it be from convergence 
>>> >> IC's
>> ?
>>> >>
>>> >> Mehdi
>>> >> Nova Service Center
>>> >> 7531 Lindburgh Dr.
>>> >> Gaithersburg, MD 20879
>>> >> 240-632-1717
>>> >> mehdi@xxxxxxxxxx
>>> >>
>>> >>
>>>
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