[TechAssist] fix. Panasonic PT-51G44A (AP815 chassis) shuts down instantly: storm damaged]
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
- Date: Thu, 19 May 2005 14:39:49 -0400
D838 was a 4.7v zener. Replaced that along with almost every small glass
switching diode in and around the SMPS area.
Had replaced the opto-isolator IC,PS reg IC801, the vertical output, audio
output,etc. most of the "800" series glass
diodes,all shorted.
The final fix part was an SE139 regulator IC802. I bet I invested 20+
tech-hrs on this. Far more than I normally would.I've totalled tvs with
less severe storm damages.
But, he's a good customer who just days before the storm picked it up
with a hefty bill for the previous fix,no complaints.(previously it had
picture distortion,but not dead)Then a bad storm.Zapp! back to the shop.
I promised to waive the labor this time tho no fault of mine.
This puppy was smacked by lightning.
Phil Bader
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
Phil Bader wrote:
> Also, I guess I will need to locate a schemo on this.Anyone have one?
> Phil Bader
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
> Phil Bader wrote:
>
>> Note: Zener diode D838 has color bands: yellow-violet-brown. In
>> Zener-ese whats this?
>> ;-)
>> Phil
>>
>> Philip Bader
>> Jan Phyl TV Inc. (estab. 1976)
>> 3420 Recker Hwy. Winter Haven, Fl. 33880
>> Fax (863) 299-8821
>> email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>> Phil Bader wrote:
>>
>>
>>
>>> Going thru this dog. In the PS found a shorted zener diode D838,
>>> need value. Also an open diode D837 unknown number. I've tried
>>> finding this chassis AP815... An ASC says Panasonic further changes
>>> the chassis to another "family" like maybe a "P4" or some such..
>>> Lost. Need at least these two diodes ID'd. Panasonic's site isn't
>>> friendly I'm told.
>>> Phil Bader
>>>
>>>
>>>
>>>
>>
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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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