[TechAssist] Re: RCA P46730WK -PTK169PCA CHASSIS
- From: Ed Gaidies <teltek2@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 25 May 2002 20:04:24 -0400
In layman's terms....what are the symptoms?
To start with, lets not talk bias, unless you have a way to confirm it's
a bias problem. Tell us what the customer would tell you, as descriptive as
possible.
Then...maybe, we can send you in the right direction. As a rule a
technician can usually attribute a CRT problem by just looking at a picture
and taking a few basic measurements, with the CRT board removed from the
neck of the tube. If it is CRT, all other Service procedures can be
eliminated, short of trying to rejuvenate the offending tube.
Sorry I don't have a schematic for the 169PCA, I have 169's, but if you
suspect a bias problem the 169 Direct view will not be of any help.
- Ed -
Ed Gaidies
TEL-TEK ELECTRONICS
Midland, Ontario, Canada.
teltek2@xxxxxxxxxxxx
teltek@xxxxxxx
> From: "Wilbert Bolden" <wbolden@xxxxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> Date: Sat, 25 May 2002 16:27:10 -0500
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: RCA P46730WK -PTK169PCA CHASSIS
>
>
> sorry ed i was trying to say i checked the voltages they seem to be ok but i
> don't actually know what they should be i also suspected the crt maybe. i
> dont really know where to start on these projection models do you have a
> schematic i can maybe borrow or do you think it can download without the
> file being too big.
> thanks
> wilbert bolden
> bolden's electronic repair
> rt 1 box 55-d
> forkland, al 36740
> wbolden@xxxxxxxxxx
> ----- Original Message -----
> From: "Ed Gaidies" <teltek2@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, May 25, 2002 2:48 PM
> Subject: [TechAssist] Re: RCA P46730WK -PTK169PCA CHASSIS
>
>
>>
>> Wilbert;
>> Sorry I misunderstand your question. A bias problem would indicate
>> checking for voltage on the red bias circuit, do you have a manual for
> this.
>> May not actually be a "bias" problem, bad CRT, possible. What have you
>> checked for voltages, since it is poor servicing to consider one resistor
> as
>> a suspect for no bias.
>>
>> - Ed -
>> Ed Gaidies
>> TEL-TEK ELECTRONICS
>> Midland, Ontario, Canada.
>>
>>
>> teltek2@xxxxxxxxxxxx
>> teltek@xxxxxxx
>>
>>
>>> From: "Wilbert Bolden" <wbolden@xxxxxxxxxx>
>>> Reply-To: techassist@xxxxxxxxxxxxx
>>> Date: Sat, 25 May 2002 12:39:56 -0500
>>> To: "techassist" <techassist@xxxxxxxxxxxxx>
>>> Subject: [TechAssist] RCA P46730WK -PTK169PCA CHASSIS
>>>
>>> fellow techs i dont work on projection tvs but a friend ask me to look
> at his
>>> this unit has a red bias problem i dont know if it is the bias resistor
> r2913
>>> it checks ok looking for a comman fix for this problem. please bear with
> me
>>> this is my first projo. thanks for any help.
>>> wilbert bolden
>>> bolden's electronic repair
>>> rt 1 box 55-d
>>> forkland, al 36740
>>> wbolden@xxxxxxxxxx
>>>
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