[TechAssist] Re: ptv 835 no high voltage has sound fix
- From: "pete" <tvtech@xxxxxxxxxxxxx>
- To: "pete" <tvtech@xxxxxxxxxxxxx>, <techassist@xxxxxxxxxxxxx>
- Date: Wed, 9 Nov 2005 06:57:40 -0500
Thanks to all that replied, found d9009 surface mount diode shorted on the
high voltage side. I 130 on collector was ok. I . had no base voltage on
q906 I made a mistake on my previous post I said I had no base drive on both
q906 and Q802,
but my problem was on q906 not q802 I had drive there
thanks again
Pete
Perdomo Tv Inc Since 1972
Miami.Fl
----- Original Message -----
From: "pete" <tvtech@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, November 05, 2005 9:49 PM
Subject: Re: [TechAssist] Re: ptv 835 no high voltage has sound
>I have 130 volts .what I dont have is base voltage on q 906 high voltage
>output
>
> Pete
> Perdomo Tv Inc Since 1972
> Miami.Fl
> ----- Original Message -----
> From: "peggs" <peggs@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, November 05, 2005 1:06 PM
> Subject: [TechAssist] Re: ptv 835 no high voltage has sound
>
>
>>
>> I think this is one of the sets with the Power Supply Opto and
>> Controller
>> that goes bad.
>> 7402,7412,even 7410 I believe.
>> Is the HOT 130v source up ???
>> You can check for it on one of the Interconnencting plugs in the middle
>>
>> Peggs
>>
>>
>> At 04:12 PM 11/4/05, pete wrote:
>>>I went to this house 2 days ago. the problem was a dead set no standby
>>>found c924 2 kv cap blown up replaced it. set worked. cust called me back
>>>2 days later went back now the set turns on and has audio but no high
>>>voltage has anybody seen this. I have b plus on both q 906 and q802. no
>>>drive on base of either q906 or q 802 any help would be greatly
>>>appreciated
>>>thank you
>>>Pete
>>>Perdomo Tv Inc Since 1972
>>>Miami.Fl
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