Topcon IS-5500 - Maintenance and Troubleshooting Guide; Routine Maintenance; Troubleshooting Overview; Fuse Replacement

10 2031005680 Rev. C, 06/2016
7. MAINTENANCE
There are no periodic maintenance requirements for the IS-5500. However, periodic checks of all
the functions and safety switches should be performed every six months. If problems arise please
refer to the Troubleshooting section of this manual.
It is recommended that the exterior surfaces of the IS-5500 be cleaned with a mild soap, water,
and clean cloth to maintain a like-new and sanitary appearance.
8. TROUBLE SHOOTING
If the IS-5500 does not function properly, complete the following tests before calling for service.
Disconnect the main power cord prior to performing any service.
1) Read the User Manual and Installation Guide to verify the IS-5500 functions.
2) Check to see that power cord is non-detachable, all cords and/or cables are securely
connected, and that the green power LED comes on when the system power button is pressed.
3) Replace any blown fuses as required. See the chart below.
a) Turn power switch off and unplug the power cord plug from the wall outlet.
b) Push down and turn the fuse holder cap counterclockwise, then pull the fuse
retainer out.
c) Replace the blown fuse(s) with a new one (refer to Table 2). Push in and turn
the fuse holder cap clockwise to replace it.
Location
Fuse
100~120 Volt
Base Chassis
Primary
Cooper Bussmann LLC, MDL-5-R, 250VAC/5A,
10000A (Breaking Capacity), Time Delay, UL 248
Base Chassis
Secondary
Cooper Bussmann LLC, MDL-5-R, 250VAC/5A,
10000A (Breaking Capacity), Time Delay, UL 248
Location
Fuse
220~240 Volt
Base Chassis
Primary
Cooper Bussmann LLC, MDL-5-R, 250VAC/3A,
10000A (Breaking Capacity), Time Delay, UL 248
Base Chassis
Secondary
Cooper Bussmann LLC, MDL-5-R, 250VAC/3A,
10000A (Breaking Capacity), Time Delay, UL 248
Table 2: Fuse Information
4) Replacing the Overhead Lamp Bulb:
If the overhead lamp does not light, check to make sure that the LAMP switch is in the ON
position. Press ▲ (UP) button to increase brightness of the lamp. If the lamp still does not
light, replace the bulb with 12V 3W LED bulb.
(If using Deluxe Lamp model, replace the bulb with 12V 7W LED bulb instead.)
WARNING: The user shall only change the two external fuses.
Any internal fuses shall ONLY be changed by a qualified technician.
!