Hi Balu, I have won some days ago, from a Ebay english seller (jdosher), two auctions of both the operating and the service manual of Anritsu MS420. You can ask him for another copy. However if you tell me what you need, I can scan the pages you need. Sorry but everything is impossible because it's composed of more than 600 pages of which about half of A3 (the manual weighs 5 kilos!). Best regards, Pietro