7200790 Service Manual for the HELION
®
XENION
®
Surgical Lighting System GB
14
4 Table – Troubleshooting and Possible Remedies
Fault
Possible causes
Possible remedy
Section
LED lamp indicator lit up
Lamp defective
Change lamp
5
Luminous field too small/
luminous intensity too low
Maladjusted limit stops
Adjust luminous field
6
Noises in the light head
Loose parts in the light
head/focus unit
Check light head/focus unit/ replace
filter glass assembly or defective
parts
7 ff.
HELION light head
Possible causes
Possible remedy
Section
Inconsistent, off-centre luminous
field with HELION
M / M+/ L / L+ only
Servomotor polarity incorrect/
servomotor defective
Check polarity of
servomotor/replace focus unit
8
No light
No input voltage
Check building power supply
9.1
Mains fuse of building power
supply defective
Check mains fuse at automatic circuit
breaker
9.2
Electrical connections for lamp,
cardanic suspension, spring arm
or extension arm interrupted
Check internal electrical supply lines
of lamp, cardanic suspension, spring
arm or extension arm
10
Defective sliding contact in
extension arm
Replace sliding contact in extension
arm/check slip ring on central column
10.1
10.2
Defective cable in light
head/cardanic suspension
Check/replace internal electrical
supply line in light head/
replace cardanic suspension
10.3
10.4
Defective cable in spring arm
Check/replace internal electrical
supply line in spring arm
10.4
10.5
Defective cable in extension arm
Check/replace internal electrical
supply line in extension arm
10.6
10.7
Defective slip ring on central
column
Replace slip ring on central column
10.8
10.9
Contact areas burnt/damaged
HELION M / M+ / L / L+:
Check operating voltage on focus
unit/replace unit
11.1
12.1
Line contact on PCB in light head
defective/
PCB defective/fuse on PCB
defective/cables in light head
defective
HELION M / M+ / L / L+:
Check positioning of cables on PCB
and control panel/
replace PCB/replace lamp supply
lines
11.1
12.1
Line contact on PCB in light head
defective/
PCB defective/fuse on PCB
defective/cables in light head
defective
HELION M / L:
Check positioning of cables on PCB
and control panel/
replace PCB/replace cables in light
head
11.2