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Fault flow chart 2.7
Hum in loudspeakers?
No RDS in the
scrolling text line
Check cable W32
Reconnect
cable W32
Confirm 5V on
PCB85 P06 pin5
Confirm 4V on
PCB88 P4 pin or 2
Confirm 4V on
PCB P4 pin or 2
Replace
Main Chassis
(module 999)
Confirm 4V on
PCB85 P06 pin4
No
Yes
Replace PCB88,
interface module
Replace cable W30
Replace PCB85,
Tuner module
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK