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  1. R

    Samsung Monitor repair

    73's de Edd Thank you for your impressive response. C-caps marked: BD 3KV Per attached the windings on the left are burnt out. I did not test the voltage. See pic attached I have not tested the PICO fuse. Would a continuity setting on the v meter be safe? C1 cap shows 2.10 volts. I did...
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    Samsung Monitor repair

    Can I please clarify if your comment relates to capacitors still soldered to the board?
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    Samsung Monitor repair

    As a first stage I have tested the the connections to the terminal strip, without connecting the screen. All the + outputs correspond to their rating. None were dead. The connection to the +16v was about 17.5v. Do I need to proceed to connect the screen and redo the test? The capacitors on the...
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    Samsung Monitor repair

    I had noticed the zones but thought the hot area related to heat not danger of electrocution. I am very grateful for your warning. Sincerely, thank you.
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    Samsung Monitor repair

    I looked for that and didn't see anything 1. Do I need to connect to the screen and the computer for this voltage test? I ask because some computer type PSU's will not work unless they sense a pull on their current? Will this type of PSU output current even if nothing other than the volt meter...
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    Samsung Monitor repair

  7. R

    Samsung Monitor repair

    I tried to add a picture to the first post above but as you can see it was crossed out. What are the rules about picture posting?
  8. R

    Samsung Monitor repair

    I thought it would be some fun giving me a sense of success to try to repair the LED monitor I have for my computer. One morning this week it started and then within seconds went black. This happened subsequently on each start up of the monitor. I found an article which suggested that it was...
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    12v 0.5A auto trickle charger

    Thank you for that suggestion. I looked inside and it was obvious which cables were + & -. The board was marked. I have an APC back-up CS 500. It suddenly stopped working. I looked at the MB and there was no obvious sign of burn out or damage. It looked in very good condition. I wondered...
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    12v 0.5A auto trickle charger

    The charger had its ends cut off. The cable from the charger does not indicate which is pos & neg. A volt meter across the end does not register because the charger seems to need a feed back voltage before it will charge. How can I test for which cable is neg and which pos?
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    Panasonic Dect phone low emf option

    Has anyone bought the current Panasonic Dect phone that offers a very low emf signal whilst on standby. It is what they call ECHO mode. I asked Panasonic if the phone or base station gives off any emf if the dect phone is out of range. I was inquiring about its handshaking when the phone is not...
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    heated jacket power bank

    I feel very relieved that I now have sufficient grasp of the problem of supplying power to the heater elements that I can proceed to buy a battery pack that will not be inappropriate from the start. Thank you for your care and help. Robin
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    heated jacket power bank

    The diy approach is getting very risky, especially with the risk relating to MT3608 mentioned by Audioguru. I need to sort out the battery otherwise I could end up having a freezing time over winter! I am therefore reconsidering a power bank, but as I have been warned here not to dash in and...
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    heated jacket power bank

    Did you forget to calculate how many seconds the four 18650 Li-Ion cells can power the boost converter that heats the jacket? I wrongly described the batteries and corrected my last post so as to show that the batteries were Li-po not Li-ion. Is my guess below a reasonable estimate of available...
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    heated jacket power bank

    I would appreciate a reply I have been advised to get a MT3608 DC-DC step-up converters and convert Li-po's 2.5-4.2V to 5V as the the new heater elements run off USB2. To charge the batteries I propose a...
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    heated jacket power bank

    Thank you both for your reply. It is a good thing I asked your advice. My previous jackets only had packs of 4 batteries and so I had better stay with that number otherwise the packs will get too heavy, as you suggest. I have been advised to get a MT3608 DC-DC step-up converters and convert...
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    heated jacket power bank

    I am proposing to buy a power bank to power a heated jacket. I would just like to check if this is a good choice: https://rover.ebay.com/rover/1/710-53481-19255-0/1?toolid=20001&campid=5338200002&customid=link&mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fitm%2F142894134069%3Ful_noapp%3Dtrue Shell...
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    heated jacket

    I have noticed some electric heating pads for outdoor clothing. I would like to run it off a 12v battery sometimes and a 7.4 li-ion battery pack other times. I propose to cut off the usb connector and put a 3.5mm audio plug in its place. This is a description for one such package: Type:1 for 5...
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    Connecting corded phone to telephone socket in another room

    I currently have dect phones which have all but one failed. This time I decided I would not go for another dect phone system but instead use a corded phone. I agree that each corded phone will not be accessable from other locations with in the flat but as the flat has only effectively 3-4...
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    Connecting corded phone to telephone socket in another room

    Here is an example of what I am considering buying. https://www.amazon.co.uk/Center-Telephone-Headset-Recording-Dialpad/dp/B010FH3QMG/ref=sr_1_5?ie=UTF8&qid=1541078752&sr=8-5&keywords=call+center+telephone+with+headset In practice it is very difficult to run a cable from the master socket to...
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