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[86.24.157.67]) by smtp.gmail.com with ESMTPSA id s24sm15115186wmj.26.2021.11.08.03.04.50 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Nov 2021 03:04:50 -0800 (PST) From: Alan Pearce To: "piclist@mit.edu" Sender: "piclist-bounces@mit.edu" Date: Mon, 8 Nov 2021 03:04:48 -0800 Subject: Re: [EE]: Sony LED TV repair update KD-60X6700E. 50 backlight LEDs in series. Thread-Topic: [EE]: Sony LED TV repair update KD-60X6700E. 50 backlight LEDs in series. Thread-Index: AdfUkhg+p9g0OOTtSIqOkwkBqWHuOA== Message-ID: <20211108110448.353cbdab@raspberry> References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of googlemail.com designates 209.85.221.46 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.221.46; helo=mail-wr1-f46.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20210112; h=from:date:to:subject:message-id:in-reply-to:references:organization :mime-version:content-transfer-encoding; bh=nLYKAJUSS0qBUmq5wCrvciDJktyNhF6XvXo2VLfZmKs=; b=RsqHfOYOKveqQGcPQHOKltzjAwpN8c3y/EsfbfmqCTWWdDFFzTI+kp2Aiwm7hsMdSR 99wxgd03a6Dbt3/PWZb656ml0jxjpqbz+PwoauFIsm6LhK+AV/m8we+7KynWezmH/HxX wjVNiOj5DFi3qM7G3Wp1snV5yJCMLgS13PPJ+aILOgRc562fRiZjjtk82cNC01l96WIW PVkUKgUiENMcGEtE3mmTTP2n3tmaueaCEwGMjDV/qIjDGMPdRW4tl4LPyU00rJMQ//9u 8VdtUpSq9+ouNOq/XTwaRGc9pAfvpU67JcFWi/PkfUA6LZc0Q8YsY0A36zZCwSHosPFI c6Vw== authentication-results: spf=pass (sender IP is 209.85.221.46) smtp.mailfrom=googlemail.com; mit.edu; dkim=pass (signature was verified) header.d=googlemail.com;mit.edu; dmarc=pass action=none header.from=googlemail.com; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:adf:e984:: with SMTP id h4mr94812270wrm.149.1636369490888; Mon, 08 Nov 2021 03:04:50 -0800 (PST) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 On Mon, 8 Nov 2021 14:52:43 +0800 Justin Richards wrote: > As it failed again I have dis-ssembled expecting to find some failed > LEDs. However, during testing it randomly powered on and has since > been rock solid. Can you be sure it is not a dry solder joint that has repaired itself by welding with a high voltage arc when open? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .