Read JBL SB 350 (serv.man3) Service Manual online
NO AUDIO OUTPUT
NO AUDIO
OUTPUT
go
Check whether have
PVCC on main board
PVCC on main board
Check whether
U253(CS42528) output
signal
Yes
No
Check whether have
19V
Yes
Replace TPA3118
Check whether have
SCLK, LRCK,DATA from
U251(CS48L11)
No
Replace power
board
Replace U451
No
Yes
Replace
U253(CS42528)
Yes
Check the voltage of
U251 or replace it
No
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