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| Thread ID: 59859 | 2005-07-14 22:16:00 | "Disk boot failure" and FDISK /MBR Command | Randolf (75) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 372169 | 2005-07-18 18:18:00 | PS: Here's a neat site with some voltages and values for a lot of ...well...everything that you might need for what you are looking: PINOUTS AND PORTS (www.pccables.com) You should be able to find just about anything you need here, and they are nice enuff to segregate the various systems for you too! One thought: just probe from a colored (red, yellow, blue, green etc) TO the Black wires, as Black is Ground, (Earth to NZ's I think!), and you'll get some really weird values if you probe across...say...red to yellow! <sorry as there's no YELLOW on this site...hadda use ORANGE> |
SurferJoe46 (51) | ||
| 372170 | 2005-07-19 02:18:00 | Unfortunately, using a digital meter will not help. At all. DVMs don't show changing values very well at all. They use samples. Slow samples. So even in the unlikely event that this is the problem, you won't see anything. A DVM will show the first stable reading it can get. After everything has happened. The only really useful instrument for looking at rapidly varying voltages is an oscilloscope. Preferably a digital one to see one sweep. What sort of analogue meter have you got, Joe? Old moving iron switchboard meters built by Edison? Most of mine pull 50 microamps at full scale They are the industry standard 20000 ohms/volt" meters. I've even got one with 10 Meg input resistance, just like a DVM. It's got a FET amplifier. ;) Even a very cheap 5000 ohm/volt (200 microanp full scale) meter won't bother a 4 or 6 amp 12 volt supply. |
Graham L (2) | ||
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