[TechAssist] Re: JVC AV-32F734 (YA version) NO picture/brightness. sound, HV vert defl. all OK
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 25 Feb 2005 12:02:45 -0500
Yes, I had a Philips with a disc ceramic@2KV shorting under load in the
G2 line on CRT board.
Will forward this. thanks,
Phil
al m wrote:
>Could be. Did he check the screen capacitor? Could be shorted tube too. I
>had a Magnavox that had low screen voltage and I changed the socket , the
>cap, and still was low. I took the board off sanded the front and back of
>board and this fixed the problem. ???????????
>Al Marquardt
>ampm@xxxxxxx
>Al Marquardt Electronic Repair
>206 W Main
>Girardville Pa. 17935
>----- Original Message -----
>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Friday, February 25, 2005 11:07 AM
>Subject: [TechAssist] Re: JVC AV-32F734 (YA version) NO picture/brightness.
>sound, HV vert defl. all OK
>
>
>
>
>>Well, he already put in a new OEM fly. But, I was thinking. What if
>>something on the CRT board was shorting the G2 oroginally, this
>>destroyed the internal resistive network in the fly, so G2 was lost. He
>>replaces the fly, now the new fly's screen internal supply is being
>>stressed, and has damaged the new fly's internal screen network. Only
>>thing I can think of.
>>Phil Bader
>>
>>al m wrote:
>>
>>
>>
>>>Maybe bad flyback?
>>>Al Marquardt
>>>ampm@xxxxxxx
>>>Al Marquardt Electronic Repair
>>>206 W Main
>>>Girardville Pa. 17935
>>>----- Original Message -----
>>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Friday, February 25, 2005 9:56 AM
>>>Subject: [TechAssist] JVC AV-32F734 (YA version) NO picture/brightness.
>>>sound, HV vert defl. all OK
>>>
>>>
>>>
>>>
>>>
>>>
>>>>Changed flyback already.
>>>>Reason for no brightness (black tube) seems to be very low G2 screen to
>>>>CRT board. On order of a hundred volts. Filaments lit OK.He removed G2
>>>>wire completely and measured it with DC probe on a scope, so good
>>>>isolation that shouldn't load it down. At wits end here.
>>>>Need ideas.
>>>>Phil Bader
>>>>
>>>>--
>>>>
>>>>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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>>--
>>
>>Philip Bader
>>Jan Phyl TV Inc. (estab. 1976)
>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>Fax (863) 299-8821
>>email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>>--
>>No virus found in this outgoing message.
>>Checked by AVG Anti-Virus.
>>Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2/22/2005
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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
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2/22/2005
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