Service manual

The Fuses
5-20
5The Fuses
To replace the AC fuses:
1. Unplug the cardiograph from AC power.
2. Turn the cardiograph bottom-side up.
3. Locate the two AC fuse holders on the bottom of the cardiograph, as shown in Figure
5-14.
4. Using a screwdriver, turn the fuse cap 1/2-turn counter-clockwise. As the fuse cap is
untwisted, it extends above the surface of the cardiograph case.
5. Pull the fuse cap straight up approximately 2-1/2 cm (1-inch), until it stops.
6. Remove the fuse. You may need to tap the fuse holder to shake the fuse out.
7. Insert a new fuse in the holder and slide the fuse cap back into the case. Fuse must be
of the same type and rating as described on the label located next to the fuse holders.
8. Tighten the fuse cap 1/2 turn clockwise.
9. Repeat the operation for the other AC fuse.
Figure 5-14 The AC Fuse Holders.
A. AC Fuse holders (2)