[TechAssist] Re: Panasonic PT-51G44A, AP815 after storm, powers up with HV,immidiate shut down

  • From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 03 May 2005 10:45:42 -0400

Some how I thought by removing these and not replacing them the set 
would shut down. So it would just work without sound, or convergence 
correction and do no damage?
Phil

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



tvservice wrote:

>Why not just unsolder the audio output and the convergence STK's to see if
>it will power on?
>Why wait to replace them if you don't know if you need them?
>Robert
>tvservice@xxxxxxxxxxxxx
>H & H Electronics Inc
>
>----- Original Message ----- 
>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, May 03, 2005 8:26 AM
>Subject: [TechAssist] Re: Panasonic PT-51G44A, AP815 after storm, powers up
>with HV,immidiate shut down
>
>
>  
>
>>That's the problem. I clipped my meter on a diode (B+ to audio IC) and
>>the darn set shuts down in a second, before the meter even can read. I
>>ordered the audio IC, the opto-isolator IC in the PS to install and see.
>>I replaced the vert LA7838 as test, no help.I am thinking the storm
>>shorted one of the ICs. Thinking of installing the convergence IC pair
>>of STK's. I have a fluke 75III meter that has "hold" but guess I need a
>>peak -hold for the fast measurements.
>>Phil
>>
>>Philip Bader
>>Jan Phyl TV Inc. (estab. 1976)
>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>Fax (863) 299-8821
>>email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>>Dan Williams wrote:
>>
>>    
>>
>>>Does it have pic before shutdown? Maybe shorted audio I.C.??
>>>
>>>Dan W. Wizard Electronics
>>>
>>>----- Original Message ----- 
>>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Monday, May 02, 2005 1:37 PM
>>>Subject: [TechAssist] Panasonic PT-51G44A, AP815 after storm, powers up
>>>      
>>>
>with
>  
>
>>>HV,immidiate shut down
>>>
>>>
>>>
>>>
>>>      
>>>
>>>>Originally this was in for a blooming,dark, flipping picture that I
>>>>cured with rebuilding a circuit board assy( C581 (33uf@250 cap,etc )on
>>>>small PCB next to the fly. Ran good here.
>>>>Looked good, cust. picked up. He called and said after they went thru
>>>>the thunder storm Tuesday it was dead. Customer brought it back in,and
>>>>now  when I push power, relay clicks on, the set comes up with HV, (no
>>>>sound) then shuts down is few seconds.Must unplug it to "reset".
>>>>I find no shorts in the PS area, etc. I know this is vague, but is there
>>>>any histories on this model, or commonly damaged parts causing SD?
>>>>Thanks,
>>>>
>>>>-- 
>>>>
>>>>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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