Description of functioning
t e c h n i c a l
43
1
LIGHTING UP INCORRECT
IN
No
No
No
Yes
Yes
Yes
OUT
Left knob in
Position ON?
Put
There are 230 VAC in
connectors J12-J13?
5 VDC in connector J26
between extreme pins?
Check electrical
connection (Mains cable)
Replace main PCB
Check the wiring and
connections between
main control circuit
and front panel circuit
if it is OK, replace the
front control PCB.
TURN IT ON
37