58 Disassembly and Repair Procedures Welch Allyn CP 100 and CP 200 Electrocardiograph
Replacing the Battery or Fuse
Procedure
1. Turn the electrocardiograph up-side-down.
2. Unscrew and remove the battery door. See
Figure 46.
Figure 46. Removing the Battery Door
3. Lift out the battery. See Figure 47.
Figure 47. Lifting Out the Battery
4. Inspect the fuse. See Figure 48.
• If the “Z” wire is intact, go to Step 5.
• If the “Z” wire is broken or dark,
replace the fuse. See “Replacing the
Battery (DC) Fuse” on page 60.
Figure 48. Battery Fuse Plugged In
Battery door
Battery
Fuse