- Samsung HW-E450 Soundbar - 1 Update
- Help hacking a laser tape measure? - 1 Update
| Rayner Lucas <usenet202101@magic-cookie.co.ukNOSPAMPLEASE>: Feb 05 03:32PM In article <351969505.634057982.756000.dave.barnicoat- btinternet.com@News.Individual.NET>, dave.barnicoat@btinternet.com says... > > Does it use a wall-wart transformer/power supply? > No it does not use a wall wart, internal power supply with soldered in fuse > which is not open circuit. Have you got the service manual? If not, it's downloadable here: https://elektrotanya.com/samsung_hw-e450_sm.pdf/download.html The troubleshooting flowcharts in the manual assume you're going to be swapping out entire boards, but at least there are schematics to help track things down to component level. If you've confirmed that the fault is on the SMPS board, I'd check the electrolytic capacitors (be sure to discharge them before touching anything on the board) and high-wattage resistors (RS801, RA808) first, as these are possible failure points that could be tested without working on a live circuit. The safety guide in https://www.repairfaq.org/sam/smpsfaq.htm is extremely useful, particularly if you do end up having to investigate the SMPS while it's powered up. R |
| Thang tran dang <dangthangcdbk52@gmail.com>: Feb 05 02:14AM -0800 Do you have code for arduino? Thanks |
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