
Twister / Twister Junior
Service Manual
Issued: 21.01.02
Page 143
15.2 Check lighting system
No
No
Yes
Replace bulb
Check contacts in bulb holder
Check bulb
Bulb
defective?
Contact
bent /
oxidised?
Yes
Yes
Make contact or replace bulb
Chapt. 15.3-
15 5
Chapt. 15.3-
Check voltage at bulb holder
No voltage?
Check cable from lighting
module to lighting unit
Chapt. 18.4,
No
Voltage failing under load.
Power supply faulty.
Chapt.14