If I would be you, I would open up the thing and see what's there, even HP is cooking with water only. If the input stage is all soldered you can at least check power to get started. There should be some tuner type bradband input stage with some active parts MMIC's. They only way to know will be have look. Your are an somewhat experienced electronic engineer or ? The schematics I believe you should be able to find, you may have to pay, check ebay, there are lot's of offers of manuals.
Sch�ne Weihnachten Friedel On 22 Dec 2004 at 7:05, Matthias Weingart wrote: > Hi, > > today I got a HP 8559A spectrum analyser. Unfortunately the > input stage seems damaged (every thing works, but I do not see > any change in the display when I apply a signal - only noise). > It can display a range of 3GHz at once (and with mixing up to 21GHz). > What do you think? Are there any chances that I can repair > the input stage myself? I have not opened it yet, but I guess > there are some hard to get parts inside, and I do not have any > circuit diagrams. Anyone here with some experiences in this field? > > thx in advance, > > Matthias > -- > Author: Matthias Weingart > INET: [EMAIL PROTECTED] > > Fat City Hosting, San Diego, California -- http://www.fatcity.com > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB CHIPDIR-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). Friedel Bruening Bolivian Instruments Casilla 4856 Santa Cruz Bolivia Mobile : ++591-773-92119 Tel/Fax : ++591-3-3580572 e-mail : [EMAIL PROTECTED] -- Author: Friedel Bruening INET: [EMAIL PROTECTED] Fat City Hosting, San Diego, California -- http://www.fatcity.com --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB CHIPDIR-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
