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|    sci.electronics.repair    |    Fixing electronic equipment    |    124,944 messages    |
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|    Message 123,467 of 124,944    |
|    Charles Lucas to Tempestinatesttube    |
|    Re: troubleshooting a non-functional Smi    |
|    14 Feb 23 08:33:06    |
      From: clsnowyowl@gmail.com              On Tuesday, January 28, 2020 at 10:29:06 AM UTC-6, Tempestinatesttube wrote:       > Hi, I just acquired one of the Smirnoff lightning lamps from a local       > sale. Unfortunately, it worked for an hour and then stopped and hasn't       > worked since. I took off the bottom cover which revealed a small       > flyback, what looks like a couple of mosfets, a driver transformer or       > two, and maybe a timer.       >       > Specifically, it is called the "Smirnoff Tempest Bar Glorifier" made in       > Korea for Neu Solutions. Unfortunately, they haven't been made in       > nearly 20 years.       >       > Does anyone know of a service manual and/or schematic for this device?       > I'm having no luck googling for it.       >       > Fortunately, I am going to be able to borrow a working unit. If anyone       > wants to roll up their sleeves and help me troubleshoot using the       > working one as a template, please share. I'd be more than willing to       > post pictures of the circuit board, components, etc.       >       > I think the first thing I will do with the working unit is take       > resistance readings of all components while off and discharged. Then,       > while on, take voltage readings of the same. I don't have enough       > experience to try reverse engineering a schematic which is why it would       > be oh so helpful to find one from the manufacturer.       >       > Any information provided would be welcome. I'd really like to get my       > broken one back in working order again! Tips, measurements, etc       > welcome.       >       > Thanks in advance,       > Tempy              I do not want to say anything here that would warrant any doubts. There are a       few ways to convert       voltage on the lamp. Therefore, I would check on line for a service manual on       the lamp based upon       the model number of the lamp and the date of manufacture.              Most lamps I diagnose are alternating current (AC) type lamps and they are       polarized. These lamps       I repair typical have sockets that are compatible with incandescent (standard       light bulb in a house),       energy saving bulbs, or led based lamps. I say this because you may have a       voltage convertor lamp       with special properties (hence the driver transistors you indicated). Also, I       usually look at the lamp       unit when it is out of service, disconnected from any power source or plug,       and run a continuity       check (one end to the other) of each wire on each end at a time to find any       breaks in the physical       wiring and/or connections with the DMM (digital multi-meter) or DVM (digital       volt meter). By having       the lamp out of circuit and checking continuity, I can also safely check for       "opens" or "shorts" in       the lamp wiring. In same cases, lamps can have 2 or three modes (on, dim,       medium bright, and/or       bright- depending on what type and what wattage of bulb used). As a caution,       never use a bulb that       exceeds the rating of a lamp- (example- never use a 100 watt bulb for a socket       rated at only 40 watts       due to excessive heat which can be a fire hazard or start a fire).              Be careful when you do voltage checks when lamp is in circuit. Remember, with       switches in off       position, only half the circuit works (for the off reads zero [0] volts)-       prior to that point on lamps       with AC is about 120 Volts AC (this is with polarized AC as well and for       devices with electrical       ground). All of that stuff follows a color coding system for safety. Note, you       can have specialty       DC (direct current) lamps or battery powered flashlights, lanterns, etc...       however, DC powered       table lamps and upright lanterns are extremely rare. Prior to all of that was       standard kerosene       and gas powered light or gaslight.              Any questions, please feel free to ask. I am answering the basics for safety       reasons. If you are not       sure, either get more information, or have a professional do the work.              Hope the information here helps. Good Luck.              Sincerely,                     Charles Lucas              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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