Light Servo Module - Invacare G40 Service Manual

12.3 Light-servo module
NOTE:
• The light-servo module is maintenance-free. Only
basical checks can be done.
• The module is mounted in the seatshell.
• Before control secure that the batteries are loaded.
Status display
For the simple visual assessing of defects the module is equip-
ped with a green light diode for status display.
Check of status display:
• Take padding out of seatshell, so that the status display at
light-servo module can be seen.
• Switch on wheelchair at remote.
• Check light diode (see diagram below).
Check
• Status display lightens?
• Status display off?
• Status display flashes
when indicator is on?
• Statusdisplay flashes?
Check voltage supply to light-servo module
• Pull BUS-plug out of light-servo module.
• Measure voltage at marked contacts (see diagram).
The voltage must at least be 19 V.
CAUTION
Do not short circuit contacts. Danger of short circuit.
Trouble index for light-servo module
Trouble
• No voltage?
• Voltage under 19 V?
Disassembly
• Remove padding out of seatshell.
• Remove plug from light-servo module.
• Take module out of seatshell.
• If necessary release BUS-plug from main module
and replace BUS-cable completely.
36
Action
> Module is in order.
> Check voltage supply of
module.
Check programming.
> Back indicator bulb defec-
tive. Replace bulb.
> Replace module.
Cause
- BUS-cable defective.
- BUS-plug defective.
- Main module defective.
- Battery deep discharged.
Assembly
• Assembly is carried out in reverse order.
NOTE
• Secure that all plugs are clicked in correctly.
Light-servo module, service view
Status display
BUS-plug
Plug to
steeringservo
BUS-plug
Plug locking
–
min. 19 Volt
Action
Check/replace BUS-cable.
> Check/replace BUS-cable.
> Check main module.
Check voltage supply to main
module. See chapter 12.1.
> Check battery. See chapter 10.1.
Plug for
lighting
+
V