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[TV] Re: Does any TV super guy know what happen to .............
Check your B+ it should be 130vdc. If it is low or going up or down, change
Optoisolator 7412 and controller IC7402.
Jeff Ostroff
A-V Electronic Service
Sedona, Arizona 86351
----- Original Message -----
From: "Ming Yu" <yuming@xxxxxxxxxxxxx>
To: <tv@xxxxxxxxxxxxxxx>
Sent: Tuesday, February 03, 2009 11:14 PM
Subject: [TV] Re: Does any TV super guy know what happen to .............
>
> NO, it is the blue tube the coolant no good so that the blue light can not
> come out, Video circuit is OK. the whole picture is no blue. Only the
> deflection and power supply circuit get problem, The screen sometime
> bigger and sometimes smaller.bigger and smaller at vertically and
> horizontally.
>
>
> Thank you
> Yu, Ming
> A1 Discount E&TV Service (Lic : E79924)
> 415-724-0005
> http://www.the-best-tv-guy.com
> 2229 San Jose Ave.,
> SF, CA 94112
> 02-03-09
>
>
>
>
> ________________________________
> From: Jeff Ostroff <stroff@xxxxxxxxxxxx>
> To: tv@xxxxxxxxxxxxxxx
> Sent: Tuesday, February 3, 2009 1:55:40 PM
> Subject: [TV] Re: Does any TV super guy know what happen to .............
>
>
> Are you saying the red & green have vertical deflection but the blue does
> not?
> If that is the case then the blue yoke must be defective or a bad
> connection
> to the yoke.
>
> Jeff Ostroff
> A-V Electronic Service
> Sedona, Arizona 86351
> ----- Original Message -----
> From: "Ming Yu" <yuming@xxxxxxxxxxxxx>
> To: <tv@xxxxxxxxxxxxxxx>
> Sent: Tuesday, February 03, 2009 2:11 PM
> Subject: [TV] Re: Does any TV super guy know what happen to .............
>
>
>>
>> Thank you, It can light up CRT. It is only one line ...that is the
>> vertical circuit don't work. It has many daughter board and is not easy
>> to
>> measure. Do you have any hint.
>>
>>
>> Thank you
>> Yu, Ming
>> A1 Discount E&TV Service (Lic : E79924)
>> 415-724-0005
>> http://www.the-best-tv-guy.com
>> 2229 San Jose Ave.,
>> SF, CA 94112
>> 02-03-09
>>
>>
>>
>>
>> ________________________________
>> From: Jeff Ostroff <stroff@xxxxxxxxxxxx>
>> To: tv@xxxxxxxxxxxxxxx
>> Sent: Tuesday, February 3, 2009 12:52:22 PM
>> Subject: [TV] Re: Does any TV super guy know what happen to .............
>>
>>
>> #2
>>
>> Ming, does the blue crt light up at all? If not check reistors &
>> transistors on blue crt board.
>> Changing size issue: Check your B+ it should be 130vdc. If it is low or
>> fluctuating, change Optoisolator 7412 and controller IC7402.
>>
>> Jeff Ostroff
>> A-V Electronic Service
>> Sedona, Arizona 86351
>> ----- Original Message -----
>> From: "Ed Weibe" <ed.weibe@xxxxxxxxxxx>
>> To: <tv@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, February 03, 2009 11:43 AM
>> Subject: [TV] Re: Does any TV super guy know what happen to .............
>>
>>
>>>
>>> MIng,
>>>
>>> #1 Maybe the battery is bad. 600's are pretty old. I own one. Old
>>> but solid.
>>> #2 blue gun maybe lots of Algae for one thing may be overheating.
>>> Just a guess
>>>
>>>
>>>
>>> On Feb 3, 2009, at 1:09 PM, Ming Yu wrote:
>>>
>>>>
>>>> 1./ Does any TV super guy know what happen to DELL inspiron
>>>> 600m ....... Customer complaint that this computer was originally
>>>> the power supply connector no good He use another supply with the
>>>> same voltage rating, but the output current is bigger. After few
>>>> months He got the original supply that is lower current output at
>>>> the same voltage. This should be no any problem, but he put in this
>>>> new ordered supply to it. This computer don't work, unless use that
>>>> high current supply. At the time I look at it, it cn not work even
>>>> use the high current supply. but it will work after charge the
>>>> battery over night, it will work fine, but remove th AC supply it
>>>> will not work again instantly. It is unusually complaint, so that I
>>>> did not give him service I only drop dwon other computer that was
>>>> fixed OK. This drop down computer was asked to fix the power jack
>>>> and was finish job.
>>>> 2./ Another .... is a philips 9P6040 c104 PTV843 whose blue
>>>> gun blue light can not come out. It is very easy to fix. The screen
>>>> size is bigger, smaller changing by itself. I met once this
>>>> problem but I did not have time to work on it and customer pay
>>>> sufficient money to fix it so that use commercial method to fix it,
>>>> not technology way. I bought a OK board for it and finish job. This
>>>> is the second time meet this problem but I will have to work on it
>>>> loong time to find out the problem. New my landlord become a miser
>>>> I don't want to put it into garage as it is too big. Please tell me
>>>> hints so that I can fix it at one or two hours and finish job, then
>>>> sold it out. I will pay you hint fee as student pay tuition fee.
>>>> The other way is to broke it into parts. I only want the screen and
>>>> the circuit board and the other I will throw it away.
>>>>
>>>>
>>>>
>>>> Thank you
>>>> Yu, Ming
>>>> A1 Discount E&TV Service (Lic : E79924)
>>>> 415-724-0005
>>>> http://www.the-best-tv-guy.com
>>>> 2229 San Jose Ave.,
>>>> SF, CA 94112
>>>> 02-03-09
>>>>
>>>>
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>>>
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>>
>>
>> --------------------------------------------------------------------------------
>>
>>
>>
>> Internal Virus Database is out of date.
>> Checked by AVG - http://www.avg.com
>> Version: 8.0.233 / Virus Database: 270.10.16/1926 - Release Date:
>> 1/30/2009
>> 5:31 PM
>>
>> This list is brought to you free of charge VIA the members of TechAssist.
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>
>
> --------------------------------------------------------------------------------
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.0.233 / Virus Database: 270.10.17/1933 - Release Date: 01/30/09
> 17:31:00
>
> This list is brought to you free of charge VIA the members of TechAssist.
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> Join our Pro only site, with a Professional Only email list:
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> ---------------------------------------------------------------------------
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> TV email Archives at: http://www.circuitwork.com/archive/TV.
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>
> This list is brought to you free of charge VIA the members of TechAssist.
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>
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--------------------------------------------------------------------------------
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.0.233 / Virus Database: 270.10.17/1933 - Release Date: 01/30/09
17:31:00
This list is brought to you free of charge VIA the members of TechAssist.
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