[TechAssist] Re: Pioneer SD-P4691, hissing noise and horizontal lines in picture
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 24 Apr 2004 21:38:23 -0400
Ground a screw driver and stick it in. It'll find the screw driver.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Kevin" <kevintv@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, April 24, 2004 6:04 PM
Subject: [TechAssist] Re: Pioneer SD-P4691, hissing noise and horizontal
lines in picture
> Yes, the loud hissing is coming from flyback. Unfortunately the set is
> in a very bright room and is a 15 minute drive away. I may have to
> reinstall the main board and darken the windows somehow and look for a
> mild arc. Thanks.
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Technotronic
> Dimensions
> Sent: Saturday, April 24, 2004 12:20 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Pioneer SD-P4691, hissing noise and horizontal
> lines in picture
>
> Is the hissing coming from the flyback? Turn off the lights in the Room
> and
> see if you locate a mild arc somewhere?
>
> Steve Hearns
> Technotronic Dimensions, NY [USA]
> WWW.TECHNOTRONIC-DIMENSIONS.COM
> 1-877-817-9885 (Voice / Fax Toll Free - US Only)
>
>
> ----- Original Message -----
> From: "Kevin" <kevintv@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, April 24, 2004 3:10 PM
> Subject: [TechAssist] Re: Pioneer SD-P4691, hissing noise and horizontal
> lines in picture
>
>
> How can I be sure that it is the flyback? I have had similar noises
> coming from the flyback and it was caused by other components. Thanks.
>
>
> Kevin Wilks
> Kevin's TV & Video Repair
> Penticton BC Canada
> kevintv@xxxxxxx=20
> =20
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of George Johnson
> Sent: Saturday, April 24, 2004 4:20 AM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Pioneer SD-P4691, hissing noise and horizontal
> lines in picture
>
> Hopefully I'm wrong, but I suspect the flyback. I come
> across this problem whenever I fail to get the hv
> lines seated in those RCA splitters. Leaking hv in the
> flyback would do the same thing.=20
> George
> Johnson TV
> Weatherly, PA
> 570-427-4637
> --- Kevin <kevintv@xxxxxxx> wrote:
> > This Pioneer 46" projection TV has horizontal wiggly
> > lines in the
> > picture and a hissing noise coming from the flyback.
> > The customer said
> > the problem used to go away after a few minutes, but
> > now it does it all
> > the time. I pulled the 2 main boards and checked
> > all caps in the
> > horizontal and P/S circuits with no luck. This
> > problem is similar to an
> > early 1990's 20" Zenith that had a Venetian blind
> > effect that I fixed
> > before. The fix for that set was a horizontal cap
> > off the jungle IC.
> > Has anybody seen this type of problem before? TIA.
> >=20
> > Kevin Wilks
> > Kevin's TV & Video Repair
> > Penticton BC Canada
> > kevintv@xxxxxxx=20
> > =20
> >=20
> >=20
> >=20
> >
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> =3D=3D=3D=3D=3D
> Johnson TV & Satellite
> Weatherly, PA 18255
> 570-427-4637 Voice & Fax
>
>
> =09
> =09
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