[TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video washed out...

From: "Jeff Dougherty" <support@xxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Date: Mon, 3 Feb 2003 18:32:32 -0500
LeRoy,
If I remember correctly, audio was just fine.
In the tech repair CD, do a search for !TDA9302. The "!" will search all fields.
Doing this, you will find most of the symptoms other techs have found from this 
IC
being bad.

FAX 717-564-4952
Jeff Dougherty
Intrepid Video & Electronics      Be careful of your thoughts.
501 Luther Rd                        They may become your words
Harrisburg, PA 17111                            any moment.
VCR tips, electronics info & general interest.
www.intrepid-video.com www.tech-repair.net
www.thetoolcaddy.com www.9-11-2001tragedy.com
***********************************************************************

----- Original Message -----
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, February 02, 2003 10:38 PM
Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video washed
out...



What about the sound ? Will it blank the sound at the same time ?
I ask,...because I have a Philips B7 chassis that I can't fix. I have tried
ALL the normal troubleshooting proceedures, and fixes,... but, I never
checked for the vertical blanking pulse yet. I might just try that, since I
DO have service literature on it.

Regards,
LLW

LeRoy Westlund
Westlund TV & Electronics        " Walk tall,...Walk straight
93 North Main                                   and look the world
Centerfield, UT 84622-0087                 right in the eye "
Ph./Fax  435-528-3822
mailto:LLW@xxxxxxxxxx

-----Original Message-----
From: C&W Electronics <c_w_electronics@xxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Sunday, February 02, 2003 4:18 PM
Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
washed out...


>
>Your definition of "bad" does not affect all things the same way. The
>vertical IC usually has a blanking pulse to the video. If it's missing, you
>will have NO VIDEO, but the vertical height and linearity will be perfect.
>
>Paul W
>C&W Electronics
>Azle Texas
>
>----- Original Message -----
>From: "al m" <ampm@xxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Sunday, February 02, 2003 10:00 AM
>Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
>washed out...
>
>
>>
>> This caught my eye. How does it have full vertical deflection if the
>> vertical IC is bad? This is interesting.
>> al marquardt
>> ampm@xxxxxxx
>>
>>
>> ----- Original Message -----
>> From: "Jeff Dougherty" <support@xxxxxxxxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Friday, January 31, 2003 10:38 PM
>> Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video
>> washed out...
>>
>>
>> >
>> > Yes you would, Phil.
>> > If your set uses that IC number...change those parts Mando mentioned.'
>> > This one had me fooled the first time.
>> >
>> > FAX 717-564-4952
>> > Jeff Dougherty
>> > Intrepid Video & Electronics      Be careful of your thoughts.
>> > 501 Luther Rd                        They may become your words
>> > Harrisburg, PA 17111                            any moment.
>> > VCR tips, electronics info & general interest.
>> > www.intrepid-video.com www.tech-repair.net
>> > www.thetoolcaddy.com www.9-11-2001tragedy.com
>> > ***********************************************************************
>> >
>> > ----- Original Message -----
>> > From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>> > To: <techassist@xxxxxxxxxxxxx>
>> > Sent: Friday, January 31, 2003 2:05 PM
>> > Subject: [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis,
video
>> washed
>> > out...
>> >
>> >
>> >
>> > If those parts were in fact shorted/open, I don't really think I would
>> > be getting full vert deflection, would I?
>> > Phil Bader
>> >
>> > armando guerra wrote:
>> > >
>> > > You probably have a shorted vertical IC TDA-9302H and diode D409
>> > > .Also,check R445 and R420.They are probably open.
>> > > Mando
>> > > Birdie's TV & Electronics
>> > > Casa  Grande, AZ
>> > >
>> > > Philip Bader wrote:
>> > >
>> > > > Still fighting this one.Became a "shop set". Display was totally
>> > > > black,with HV.and sound.
>> > > > Turned up G2 on fly to illuminate screen and it did,with the usual
>> > > > expected white screen and retrace lines from overdrive. But I still
>at
>> > > > least see a very faded video signal. I checked the entire CRT board
>> > > > components,all seem OK, no open resistors or shorted
transistors.The
>> > > > three 2 watt 18K resistors on CRT board feeding the outputs,
>> > > > (#3314,3324,3334) all have about +194.00V on source sides and about
>> > > > +193.00V on other sides.The screen control works. I have a full
>> > > > screen,sound,tuner operation. too faint to see if there is OSD.
>> > > > At this point I simply want to solve this.It's getting personal ;-)
>> > > > Wondering if that jungle chip(TDA8373C) is the cause.
>> > > > 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
>> >
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>> >
>> >
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>> >
>>
>>
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References:
- [TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video washed out...
  - From: LeRoy Westlund
[TechAssist] Re: Philips Magnavox 19PR15, 19A800 chassis, video washed out...

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