- LaserQuantum Diagnostics - 4 Updates
- Blown IC - 3 Updates
| Mitchell de Vries <m.devries001@gmail.com>: Apr 06 07:18PM -0700 Hi all. Trying to repair a 532GEM from LaserQuantum. Outputs ~0.1% of the maximum 500mW it should be. Got in contact with LQ, they said they were going to use remote access "diagnostics software" to check what's going on with the internals. I'm a bit tired of waiting (it's been since last year!) so I was wondering if anyone knows how I can take things into my own hands - any secret commands etc that would let me diagnose the issue with the unit without waiting for LQ to get back to me? |
| Rheilly Phoull <rheilly@bigslong.com>: Apr 07 12:44PM +0800 On 7/04/2021 10:18 am, Mitchell de Vries wrote: > Hi all. Trying to repair a 532GEM from LaserQuantum. Outputs ~0.1% of the maximum 500mW it should be. Got in contact with LQ, they said they were going to use remote access "diagnostics software" to check what's going on with the internals. > I'm a bit tired of waiting (it's been since last year!) so I was wondering if anyone knows how I can take things into my own hands - any secret commands etc that would let me diagnose the issue with the unit without waiting for LQ to get back to me? Might be better to hit 'em up again since it looks like they have overlooked the task ? |
| Mitchell de Vries <m.devries001@gmail.com>: Apr 06 09:47PM -0700 On Wednesday, 7 April 2021 at 14:44:33 UTC+10, Rheilly Phoull wrote: > > I'm a bit tired of waiting (it's been since last year!) so I was wondering if anyone knows how I can take things into my own hands - any secret commands etc that would let me diagnose the issue with the unit without waiting for LQ to get back to me? > Might be better to hit 'em up again since it looks like they have > overlooked the task ? Yeah our lab tech and I have been trying to get hold of them for a while now. They mentioned last year that they were going to low staffing option due to COVID, so who knows how long it'll take to hear back from them :P |
| Rheilly Phoull <rheilly@bigslong.com>: Apr 07 04:07PM +0800 On 7/04/2021 12:47 pm, Mitchell de Vries wrote: >> Might be better to hit 'em up again since it looks like they have >> overlooked the task ? > Yeah our lab tech and I have been trying to get hold of them for a while now. They mentioned last year that they were going to low staffing option due to COVID, so who knows how long it'll take to hear back from them :P YUP thats about how it goes these days ;_( |
| "Peter W." <peterwieck33@gmail.com>: Apr 06 10:31AM -0700 > I have a .068 ohm resistor reading 0.00.. acting like a short, it is a low ohm resistor, is it supposed to read??? Lemme see. 0.068 ohms. Really? That would be within the margin-of-error for many cheap VOMs. Does your meter have a range-adjust? If you are in the 0-10.000 range, you will not get a wiggle at 0.068 ohms. Of you are in the 0-1 ohm range, that is entirely something else. Peter Wieck Melrose Park, PA |
| Ralph Mowery <rmowery42@charter.net>: Apr 06 01:39PM -0400 In article <72fa8efb-5541-4ec0-b74f-ec0f1edec73an@googlegroups.com>, peterwieck33@gmail.com says... > > I have a .068 ohm resistor reading 0.00.. acting like a short, it is a low ohm resistor, is it supposed to read??? > Lemme see. 0.068 ohms. Really? That would be within the margin-of-error for many cheap VOMs. Does your meter have a range-adjust? If you are in the 0-10.000 range, you will not get a wiggle at 0.068 ohms. Of you are in the 0-1 ohm range, that is entirely something else. It would take a very special meter to show a .068 resistor value. That or measure the voltage across it with a known ammount of current through it. For most meters there could be that much contact resistance. |
| Cydrome Leader <presence@MUNGEpanix.com>: Apr 06 06:26PM >> > I have a .068 ohm resistor reading 0.00.. acting like a short, it is a low ohm resistor, is it supposed to read??? >> Did you zero the meter? Sometimes a low value resistor is shunted by a choke, and sometimes some residual voltage in the circuit will throw off a resistance reading. Try removing one lead of the resistor and checking again, and if it's OK, see if it is paralleled with another low resistance component. > I did lift a lead, and it's still reading zero, like a short.??? it doesn't look like it's paralleled with another low resistance component. 0.068 ohms is basically a short. It's unlikely a resistor will fail shorted, so leave it alone, it's probably OK. |
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