gsboris Posted March 23, 2004 Report Share Posted March 23, 2004 Hi thereCould anyone help me out. I need to replace a diode but I can not identify it. It says on it C10 301, and it is Motorola. I would greatly appreciate any info on it.BG Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted March 23, 2004 Report Share Posted March 23, 2004 Are you sure it is a diode?Where did you get the numbers from?If you got it from the circuitboard C10 means it is a Capacitor and 300 is it's value in Picofarads or Microfarads. Quote Link to comment Share on other sites More sharing options...
gsboris Posted March 25, 2004 Author Report Share Posted March 25, 2004 On a board it is marked as a diode (i.e. V102 or something like that).By itself it looks like a diode, 1/8'' small cilinder, the simbols are written across it, as follows C10301and at the end there is a Motorola signM (a kind of 2 arrow tips pointing upward)it has ~+10V on cathode and ~-20V on anode Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted March 26, 2004 Report Share Posted March 26, 2004 Let's try something else What is it in and what is the make and model. Let's try to find you a schematic diagram and see what it tells us. Quote Link to comment Share on other sites More sharing options...
gsboris Posted March 26, 2004 Author Report Share Posted March 26, 2004 All right.It is a fraction collector, Frac-100. Made by Pharmacia, Uppsala, Sweden. There is no schematics in documentation.I traced a little the circuitboard. So, there are 2 bridge rectifiers after transformer. One gives 10 and the other one 20V DC. +10V go to voltage regulator and become +5V (it is used fo TTL), between those 5V and -20V this diode and 1W resistor (as a voltage divider) are placed. 20V are used to operate a stepping motor (it activates by the 20V saw shape signal).That is basically everithing I could gather. Thank you for your efforts.SincerelyBoris Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted April 6, 2004 Report Share Posted April 6, 2004 Is this the Machine you are working on?Here is more info.Frac-100. Made by Pharmacia, Uppsala, SwedenParts http://www.sci-bay.com/partspages/lkb_parts-1.htmlhttp://www.sci-bay.com/partspages/lkb_parts-2.htmlAuthorized Repair Center http://www.sci-bay.com/index.htmlFrac-100.pdf Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted April 9, 2004 Report Share Posted April 9, 2004 Is this it? C10 = ECG113A = DS-17 = DS-131 This Diode has 3 pins and resembles a transistor G10 = 1N4007 = 1 amp Diode DO15 Case Plastic Looks like a standard DiodeECG113A.pdf Quote Link to comment Share on other sites More sharing options...
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