Read JBL SB 350 (serv.man4) Service Manual online
Remote
control does
not work
go
Check whether battery
of remote control is
exhausted
Check whether have
+3.3V_STB and IR signal
on CON201
No
Yes
Replace battery
Yes
Replace EQ board
Check LDO U455 circuit
and IR_IN connection
on main board
No
REMOTE CONTROL DOES NOT WORK
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