[TechAssist] Zenith B27A112, 9-2109-02 , dead, chirps@ turn on only, other. FIX

From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Wed, 24 Nov 2004 09:48:03 -0500
And less we forget those modules sent us are for many different models 
and screen sizes, so now I may need to go into the service menu, reset 
everything, realign, etc.
I happened to have all the parts in stock right on my shelf, and it 
really wasn't too bad. I spent about  30 minutes with it and no special 
order with the distributor.. Resistors and IC new... Investment: $10.00? 
I just know some of these Zeniths, and are comfortable troubleshooting 
them. I wouldn't spend the afternoon,tho. I guess with all the things I 
fixed, it sounded like a days work. Nawh!
;-)
Not for Suuuuuuuper-tech!
But I agree, with some of the Zenith PTVs I wished I just ordered a 
hundred dollar board and not have to re-do the old module  over 
again...Then again, there's a  more expensive TV and more room for profit.
Phil Bader

gulftech@xxxxxxxx wrote:

>I respecfully disagree.
>
>It costs a lot more than $75.00.  First, you have to put the unit back
>together and move it off the bench, letting it set while you wait for the
>module.  Then, you spend the time in packaging and labeling the dud and
>getting it shipped.  When it comes in--more time.  Heaven help you if
>either the rebuilt or dud module gets lost or damaged in shipment.  Then,
>the rebuilt could still be bad.  Way too much trouble!
>
>To me, a rebuilt module is only a last resort, certainly not on a 27"
>Zenith.  Not enough money in it.
>
>
>Ken Smith
>Gulf Technical Services
>3034 Gulf Breeze Parkway
>Gulf Breeze, FL  32563
>850-934-8324 (Voice), 850-932-0819 (fax)
>
>On Tue, 23 Nov 2004 16:56:18 -0500 "Larry E" <videotech@xxxxxxxxxxxx>
>writes:
>  
>
>>Phil, why would you spend that much time (and money) when you
>>could have ordered a rebuilt from Tri-State  for $75.00?? I know
>>the story "real techs fix to component level" but we are all in 
>>business
>>to make a living and I have found that swapping modules on Zeniths
>>is way more profitable then fixing them to component level. I have
>>to say "good job" in getting a dog like that fixed, but you`d be
>>better off financially to exchange the modules, just my 2 cents
>>worth, Larry E
>>
>>Larry Eastman
>>American TV & Electronics
>>Crystal River, Fl. 34428
>>----- Original Message -----
>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Monday, November 22, 2004 2:18 PM
>>Subject: [TechAssist] Zenith B27A112, 9-2109-02 , dead, chirps@ turn 
>>on
>>only, other. FIX
>>
>>
>>    
>>
>>>Originally dead. Heard the chirp of the smps at plug in. Had all 
>>>      
>>>
>>the
>>    
>>
>>>normal  voltages in standby.
>>>+135VDC on HOT collector.
>>>Push power. hear the  high voltage surge, then nothing. Scoped the
>>>collector of the HOT (used a suitable probe)and saw the usual 
>>>      
>>>
>>waveform
>>    
>>
>>>at start up. I've learned from past experiences this is a bad 
>>>      
>>>
>>flyback.
>>    
>>
>>>Cure: Replaced the fly #95-4372-01 (subs are 95-4601-01, 
>>>      
>>>
>>95-4617-01,
>>    
>>
>>>95-4617-03).
>>>Now, unit powers up with good high voltage.
>>>The picture was poor, a black and white negative picture with 
>>>      
>>>
>>smear to
>>    
>>
>>>the right.
>>>Cure: Replace all three 120K ohm 1/2 watt resistors on the CRT 
>>>      
>>>
>>board.
>>    
>>
>>>Now have a good black and white picture.
>>>But, no color. OSD had color.
>>>Cure: replace ICX2200: TA1268N.
>>>Whew.
>>>All fixed.
>>>Phil Bader
>>>
>>>--
>>>
>>>Philip Bader
>>>Jan Phyl TV Inc. (estab. 1976)
>>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>>Fax (863) 299-8821
>>>email: tjanphyl@xxxxxxxxxxxxxxx
>>>
>>>
>>>
>>>
>>>      
>>>
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>>
>>    
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-- 

Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx



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References:
- [TechAssist] Re: Zenith B27A112, 9-2109-02 , dead, chirps@ turn on only, other. FIX
  - From: gulftech
[TechAssist] Zenith B27A112, 9-2109-02 , dead, chirps@ turn on only, other. FIX

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