| Sharp Guy <caedfaa9ed1216d60ef78a6f660f5f85_9690@example.com>: May 25 04:44PM replying to Eric in North TX, Sharp Guy wrote: I have a Sharp carousel model R-1502. Control panel does not work for a while and some electronics went bad yesterday. You can have it but I need to unmounts it and can't locate the instructions manual. I am located in CT in postal zip code 06070. -- posted from http://www.homeownershub.com/maintenance/wanted-used-defective-sharp-microwave-control-panels-r15-289458-.htm |
| "Kenny" <me@privacy.net>: May 20 11:11PM +0100 "Ian Field" wrote in message news:wAo%y.847680$8r2.99354@fx46.am4... "Kenny" <me@privacy.net> wrote in message news:NNKdncuibJTgI6fKnZ2dnUU78WHNnZ2d@brightview.com... > Looking for a reliable UK supplier for these. I don't have a part number > but have the panel type number, it's in a 50" LG TV. My experience with this was finding a TV in the flats bin room that was made by a well known Turkish company (Vestel). Apparently LED failure is one of a long list of stock faults..................................... Unfortunately I cracked the LCD panel putting it back together, but I learned a fair bit from the excercise. Each LED had a plastic lens extruded on, I had to melt these with a soldering iron to peel them off. The iron wouldn't shift the SMD LEDs. It took a modeler's pencil blowtorch to shift the dud LED chips, after that I used a small roll of emery paper to clean off some solder resist and attach some power LEDs I had to hand. You can re-touch the PCB around the replaced LEDs with correction fluid. If its a Vestel - you'll probably find a few more LEDs that tested OK have given up.............................. https://www.youtube.com/watch?v=Bf5T2wwtydY This is the video I watched, it's for a 47" LG, mines 50", I don't have the space to work like that and wouldn't feel confident dismantling the screen anyway. Local shop say they'll look at it and give me an estimate so that's probably what I'll do, thing is this TV is only 2 years old and the same fault may recur. I've decided to buy a 55" Sony with 5 year warranty and giving the LG to a family member if they want to pay for the repair. |
| Fred McKenzie <fmmck@aol.com>: May 24 01:21PM -0400 In article <ni1ee9$14gn$1@gioia.aioe.org>, > current draw of less than 1 mA with the AC adapter connected. I'm > wondering why there should be any current drawn from the batt when > powering from AC. Sincerely, J. B.- I would expect there to be an isolation diode between the battery and the AC adapter's power. I can think of three possibilities: 1. The diode is shorted, so power from the AC adapter is ruining the backup battery. 2. There is a leaky electrolytic capacitor on the battery side of the diode. Check current draw from the battery with the AC adapter disconnected. 3. The AC adapter has failed, so the device is being powered entirely from the battery. Does it work with the battery removed? Fred |
| "J.B. Wood" <arl_123234@hotmail.com>: May 24 02:42PM -0400 On 05/24/2016 01:21 PM, Fred McKenzie wrote: > 3. The AC adapter has failed, so the device is being powered entirely > from the battery. Does it work with the battery removed? > Fred Thanks for the reply. Wrt to 3) the battery provides for retaining the user-specified configuration (outgoing message, current time/date, etc) in memory in case of an AC power outage; the unit still requires the AC adapter to operate with or without a battery installed. Without a battery (or too low a battery) the unit will reset to its out-of-the-box defaults following an AC power interruption. Just like a lot of those bedside LED alarm clocks with battery-backup. Sincerely, -- J. B. Wood e-mail: arl_123234@hotmail.com |
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