[TechAssist] Re: Toshiba 36AF42 picture tube ringing
- From: Doug Keller <dek@xxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 26 Jan 2004 16:20:38 -0500
Karaoke or accapella? *laughs*
Doug Keller
Wis-Kel Electronics
101 Freeland Ave.
Terra Alta, WV
USA 26764
dek@xxxxxxxxxxxxxx
http://www.tech-assist.org
"Learn from the mistakes of others, because you
won't live long enough to make them all yourself"
al m wrote:
>Are you sure it's not the yoke singing?
>Al Marquardt
>ampm@xxxxxxx
>Al Marquardt Electronic Repair
>206 W Main
>Girardville Pa. 17935
>----- Original Message -----
>From: <tvservice@xxxxxxxxxxxxx>
>To: "Tech-Assist" <techassist@xxxxxxxxxxxxx>
>Sent: Monday, January 26, 2004 1:09 PM
>Subject: [TechAssist] Toshiba 36AF42 picture tube ringing
>
>
>
>
>>Here's one for you
>>I am looking at this set for intermittent hi pitch squeel
>>after several hours finally began ringing/squeeling.
>>the sound is coming from the bell of the crt.
>>I have disconnected degaussing coil and horizontal shift coil with no
>>change.
>>Slapping on the crt seems to have no effect other than slight purity drift
>>(shadowmask)
>>When remove the antenna ringing gets louder.
>>Flexing the board and coils and components in horizontal section have no
>>effect either.
>>Before I replace the CRT has anyone else heard or seen this?
>>The CRT is A80JZ90X01 Toshiba on the label
>>
>>Robert
>>tvservice@xxxxxxxxxxxxx
>>H & H Electronics Inc
>>Dallas, TX
>>
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