To find a suitable replacement fuse, you need 4 specs:
- Amperage rating
- Voltage rating
- Blow-time rating
- Size/form factor
Found the fuse on pages 41 (item #109) and 43 (upper left, just to the right of transformer 560-5095) of the manual
here.
Page 41 describes it as a 4A 6.5x30mm fuse. (P/N 514-0040)
Page 43 shows that the fuse connects to wire "AL" that connects to a fan motor, a fluorescent light (FL15W), and monitor power input labeled "AC 100V". (bottom of diagram, directly below the fuse)
CRT monitors have a current surge when they are first turned on, so you want a slow-blow fuse
NOT a fast-blow fuse.
Based on this info, the original fuse had the following specs:
Amperage rating -- 4A
Voltage rating -- 100V (or higher)
Blow-time rating -- Slow-blow
Size/form factor -- 6.5x30mm
Substituting a fuse with a
higher voltage rating is OK -- 125V or 250V would work fine.
IIRC 6.5x30mm is an uncommon size compared to 1/4" x 1-1/4" a.k.a. 6x30mm. (actual fuse size is closer to 6.3x32mm)
You should be able to use a fuse like
this as long as it makes solid contact with the holder.
Scott