[TechAssist] Re: Fw: KV36FS100 shorted h out trans, now jagged hor. lines-arcing noise

From: Al L <alleathe@xxxxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx
Date: Tue, 19 Jul 2005 21:54:28 -0400
Gonna look in the morning,Phil,maybe have to send you my thanks.

Al Leatherman
224 RT. 46
Mine Hill, NJ 07803
973-361-5796
WWW.ALS-TV.NET

----- Original Message ----- 
From: <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 19, 2005 9:46 PM
Subject: [TechAssist] Re: Fw: KV36FS100 shorted h out trans, now jagged hor. 
lines-arcing noise


> True enough, you hear the sputtering in the fly, but a fly will sound
> like this if it is getting a raspy drive signal.The fly is tuned to
> the design frequency and if given an off freq, erratic signal you will
> hear it audibly producing  it. A jagged horizontal  drive signal to it
> can make that noise. Like the "christmas tree" effect from an unstable
> horiz. oscillator.The fly screaches. So divide and conquer. Scope the
> HOT base to verify a good clean drive first. If you get good in, trash
> out, its the fly internally arcing.
> Phil
>
>
> Phil Bader, Pres.
> Jan Phyl TV Inc
> Winter Haven, Fl
> (863) 299-8821
> estab. 1976
>
> ----- Original Message -----
> From: Al L <alleathe@xxxxxxxxxxxxx>
> Date: Tuesday, July 19, 2005 9:38 pm
> Subject: [TechAssist] Re: Fw: KV36FS100  shorted h out trans, now
> jagged hor. lines-arcing noise
>
>> Thanks Phil,excellent point.I think I will try a generic fly after
>> trying
>> your suggestion.Remember, I can hear arcing/fizzing at the fly
>> with my
>> steth.
>>
>> Al Leatherman
>> 224 RT. 46
>> Mine Hill, NJ 07803
>> 973-361-5796
>> WWW.ALS-TV.NET
>>
>> ----- Original Message ----- 
>> From: <tjanphyl@xxxxxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Tuesday, July 19, 2005 9:24 PM
>> Subject: [TechAssist] Re: Fw: KV36FS100 shorted h out trans, now
>> jagged hor.
>> lines-arcing noise
>>
>>
>> > If you unsoldered the HOT collector, and scoped the base,if base is
>> > clean, the noise would have to be from there on out,leaving the
> HOT,
>> > fly,yoke,etc.
>> > Phil
>> >
>> > Phil Bader, Pres.
>> > Jan Phyl TV Inc
>> > Winter Haven, Fl
>> > (863) 299-8821
>> > estab. 1976
>> >
>> > ----- Original Message -----
>> > From: Al L <alleathe@xxxxxxxxxxxxx>
>> > Date: Tuesday, July 19, 2005 8:26 pm
>> > Subject: [TechAssist] Re: Fw: KV36FS100  shorted h out trans, now
>> > jagged hor. lines-arcing noise
>> >
>> >> The waveform is clean,but I see a "slight burst" two thirds up the
>> >> leading
>> >> edge,and i hear sputtering noises at the top of the fly,with my
>> >> stethoscope.I suspect the hv multiplier.Thanks.
>> >>
>> >> Al Leatherman
>> >> 224 RT. 46
>> >> Mine Hill, NJ 07803
>> >> 973-361-5796
>> >> WWW.ALS-TV.NET
>> >>
>> >> ----- Original Message ----- 
>> >> From: "Shoreline Electronics" <jstielau@xxxxxxxx>
>> >> To: <techassist@xxxxxxxxxxxxx>
>> >> Sent: Tuesday, July 19, 2005 8:11 PM
>> >> Subject: [TechAssist] Re: Fw: KV36FS100 shorted h out trans, now
>> >> jagged hor.
>> >> lines-arcing noise
>> >>
>> >>
>> >> > Al,
>> >> >
>> >> > Can you see the abnormities in the outputs' collector pulse?
>> >> >
>> >> > ==========================
>> >> > Jeff Stielau
>> >> > Shoreline Electronics Repair
>> >> > 344 East Main Street
>> >> > Clinton,CT 06413
>> >> > 860-399-1861
>> >> > 860-664-3535 (fax)
>> >> > jstielau@xxxxxxxx
>> >> > ========================
>> >> >
>> >> > ----- Original Message ----- 
>> >> > From: "Al L" <alleathe@xxxxxxxxxxxxx>
>> >> > To: <techassist@xxxxxxxxxxxxx>
>> >> > Sent: Tuesday, July 19, 2005 4:49 PM
>> >> > Subject: [TechAssist] Re: Fw: KV36FS100 shorted h out trans, now
>> >> jagged
>> >> > hor.
>> >> > lines-arcing noise
>> >> >
>> >> >
>> >> >> Thanks but replaced with new 702,same symptoms.
>> >> >>
>> >> >> Al Leatherman
>> >> >> 224 RT. 46
>> >> >> Mine Hill, NJ 07803
>> >> >> 973-361-5796
>> >> >> WWW.ALS-TV.NET
>> >> >>
>> >> >> ----- Original Message ----- 
>> >> >> From: "tvservice" <tvservice@xxxxxxxxxxxxx>
>> >> >> To: <techassist@xxxxxxxxxxxxx>
>> >> >> Sent: Tuesday, July 19, 2005 4:36 PM
>> >> >> Subject: [TechAssist] Re: Fw: KV36FS100 shorted h out trans,
>> >> now jagged
>> >> >> hor.
>> >> >> lines-arcing noise
>> >> >>
>> >> >>
>> >> >>> look at the video output ic on the crt board common failure
>> >> item to
>> >> >>> cause
>> >> >>> HOT to short
>> >> >>> KV27FS100, KV27FS200, KV32FS100, KV32FS200
>> >> >>> SubjectDead
>> >> >>>
>> >> >>> SYMPTOMS
>> >> >>> Dead
>> >> >>> RESOLUTION
>> >> >>> Found Q502 Horizontal Output shorted. Replaced turned unit on
>> >> and after
>> >> >>> 5
>> >> >>> seconds Q502
>> >> >>> shorted again. Found IC702 defective. Replaced IC & Q502
>> and unit
>> >> >>> restored
>> >> >>> to working order.
>> >> >>> 875956243 IC702 VIDEO OUTPUT
>> >> >>> 655010701 Q502 HOR OUTPUT
>> >> >>> Robert
>> >> >>> tvservice@xxxxxxxxxxxxx
>> >> >>> H & H Electronics Inc
>> >> >>>
>> >> >>> ----- Original Message ----- 
>> >> >>> From: "Al L" <alleathe@xxxxxxxxxxxxx>
>> >> >>> To: <techassist@xxxxxxxxxxxxx>
>> >> >>> Sent: Tuesday, July 19, 2005 3:16 PM
>> >> >>> Subject: [TechAssist] Fw: KV36FS100 shorted h out trans, now
>> >> jagged hor.
>> >> >>> lines-arcing noise
>> >> >>>
>> >> >>>
>> >> >>>>
>> >> >>>> Sent: Tuesday, July 19, 2005 4:15 PM
>> >> >>>> Subject: KV36FS100 shorted h out trans, now jagged hor.
>> lines-
>> >> arcing>>>> noise
>> >> >>>>
>> >> >>>>
>> >> >>>> > Put in high quality output,scanning lines ragged at left of
>> >> >>>> > pix(severe
>> >> >>>> > hafc hunting but not pie crusting),with my stethoscope i
>> >> can hear
>> >> >>>> > arcing
>> >> >>>> > from fly(I think).I suspect trippler in fly.Set is not
>> >> drawing heavy
>> >> >>>> > current,and new h out trans is cool,pix is excellent.Any
>> >> ideas or
>> >> >>>> > should
>> >> >>> i
>> >> >>>> > tell him two weeks before i get back,and order a fly?
>> >> >>>> >
>> >> >>>> > Al Leatherman
>> >> >>>> > 224 RT. 46
>> >> >>>> > Mine Hill, NJ 07803
>> >> >>>> > 973-361-5796
>> >> >>>> > WWW.ALS-TV.NET
>> >> >>>> >
>> >> >>>>
>> >> >>>>
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References:
- [TechAssist] Re: Fw: KV36FS100 shorted h out trans, now jagged hor. lines-arcing noise
  - From: tjanphyl
[TechAssist] Re: Fw: KV36FS100 shorted h out trans, now jagged hor. lines-arcing noise

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