30
7.13. No Sound from Headphone
Is there
a
connection
bet
w
een
A
MP PCB
a
nd He
a
dphone PCB?
Pin
6
o
f
P
6
801
a
nd Pin
6
o
f
P
2
901
Is the correct volt
ag
e
presented
a
t P
6
50
2
on
A
MP PCB?
Bet
w
een Pin 14
a
nd
26
:
Nor
ma
l:
a
round 3.3
V
Repl
a
ce M
a
in PCB.
Y
E
S
No
S
ound
f
ro
m
He
a
dphone.
Is the correct volt
ag
e
presented
a
t P
2
901 on He
a
dphone PCB?
Bet
w
een Pin
6
a
nd 5:
He
a
dphone Inserted: +3.0 or over
He
a
dphone NOT Inserted: +0.1
V
or lo
w
er
NO
Repl
a
ce He
a
dphone PCB.
Y
E
S
NO
Is there
a
connection
bet
w
een M
a
in PCB
a
nd
A
MP PCB?
Pin 19 o
f
P455
2
a
nd Pin 4 o
f
P
6
801
Y
E
S
Y
E
S
Repl
a
ce FFC.
Is FFC bet
w
een
P
6
503 on
A
MP PCB
a
nd
P455
2
on M
a
in PCB
d
amag
ed?
Y
E
S
Repl
a
ce
A
MP PCB.
Repl
a
ce FFC.
NO
NO
NO
