[TechAssist] Re: Zenith Z52Z95D8 9-1674 SWEEP 9-1690 CONVERGENCE. update
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 23 Jan 2005 13:52:02 -0500
Thanks Pete. I saw on here to replace them with 180's????
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "pete" <tvtech@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, January 23, 2005 1:47 PM
Subject: [TechAssist] Re: Zenith Z52Z95D8 9-1674 SWEEP 9-1690 CONVERGENCE.
update
> al think you should replace buth ics with a 110 number and see what
> happens
> Ive never used 180s to replace 110s
>
> good luck
>
> Pete
> Perdomo Tv Inc Since 1972
> Miami.Fl
> ----- Original Message -----
> From: "al m" <ampm@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, January 23, 2005 10:04 AM
> Subject: [TechAssist] Re: Zenith Z52Z95D8 9-1674 SWEEP 9-1690 CONVERGENCE.
> update
>
>
>> If someone gets a 9-1690 convergence board in, could you please let me
>> know
>> if the blue convergence heatsink should be running hotter than the red
>> one.
>> Mine is running at 138f deg..
>> Al Marquardt
>> ampm@xxxxxxx
>> Al Marquardt Electronic Repair
>> 206 W Main
>> Girardville Pa. 17935
>> ----- Original Message -----
>> From: "al m" <ampm@xxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Wednesday, January 19, 2005 4:18 PM
>> Subject: [TechAssist] Re: Zenith Z52Z95D8 9-1674 SWEEP 9-1690
>> CONVERGENCE.
>> update
>>
>>
>>>
>>> This set the blue convergence was replaced with a STK392-180. The
>>> picture
>>> is
>>> good but the heat sink that the IC is on is measuring 139Fdeg. The red
>>> heat
>>> sink is a lot cooler. I have changed all caps on the board and checked
>>> all
>>> the other components. There is a -5V regulator on this heat sink. The
>>> voltages are all correct on the board. Could this heatsink be running
>>> hotter
>>> than the other one because of the -5V regulator? Could this be normal?
>>> All
>>> the heat seems to come from the -5V regulator. When I measure the temp
>>> on
>>> the IC it is cool but on the regulator it is 138F. Am I chasing a ghost
>>> again with this being normal? Thanks.
>>> Al Marquardt
>>> ampm@xxxxxxx
>>> Al Marquardt Electronic Repair
>>> 206 W Main
>>> Girardville Pa. 17935
>>> ----- Original Message -----
>>> From: "al m" <ampm@xxxxxxx>
>>> To: "tech assist" <techassist@xxxxxxxxxxxxx>
>>> Sent: Saturday, January 08, 2005 11:44 AM
>>> Subject: [TechAssist] Zenith Z52Z95D8 9-1674 SWEEP 9-1690 CONVERGENCE.
>>>
>>>
>>>> This set had no power. I replaced the B+ diode and the set ran but the
>>>> blue
>>>> convergence was off. Changed the blue convergence IC ( STK392-110 with
>>>> STK392-180). The Ic's are running hot. How hot are these supposed to
>>>> run.
>>>> I
>>>> can keep my finger on it but it is hot. I may have something more wrong
>>>> with
>>>> the power supply.
>>>> Al Marquardt
>>>> ampm@xxxxxxx
>>>> Al Marquardt Electronic Repair
>>>> 206 W Main
>>>> Girardville Pa. 17935
>>>>
>>>>
>>>>
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