If you hook up a second monitor and manage to move the ccc panel to whichever is showing a good signal, then you should be able to adjust the other monitor.
You'd need to have the second(working) monitor as extended though otherwise they will try to duplicate which isn't going to work when you have an old 4:3 monitor and your newer 16:9.
Also if no driver from Sanyo, when in device manage monitors, don't search, tell it to choose from a list of installed monitor drivers and try generic or some other sanyo model.
#1: FX-6350, Antec Kuhler 920, MSI 970 Gaming, Asus 5870/V2, ASUS Xonar D2X, GSkill (F3-14900cl9d-8gbxl), Antec Truepower New 750, Arc Midi, Win8.1pro x64
#2: MSI A88X-G45, AMD A10-7850K, IGP, AMD 2x4GB 2133 (R938G2130UK), Antec 750 True, 128GB Sandisk SSD, WD Black 1TB, Win8.1pro x64
#3: Athlon 64 X2 4200+, AGP 1950pro, Audigy 2, Asus A8V-D, 2gig ram, Enermax 465P, Antec900case. Now on Win8.1pro cat 10.2