25
7.8.
Can not control /-
C
a
n not control
V
olu
m
e +/-.
Y
E
S
Is the correct volt
ag
e
presented
a
t P8501 on
V
olu
m
e PCB?
Bet
w
een
Pin 4
a
nd 3: +4.8 to 5.
2V
Pin
7
a
nd 3: +3.1 to 3.4
V
Pin 8
a
nd 3: -1
2
.5 to -11.5
V
Repl
a
ce OLED PCB.
Is FFC bet
w
een
M
a
in PCB
a
nd OLED PCB
d
amag
ed?
Y
E
S
Repl
a
ce FFC.
Y
E
S
Repl
a
ce FFC.
NO
NO
S
till not re
m
edy.
Is the correct volt
ag
e
presented
a
t P8005 on OLED PCB?
Bet
w
een
Pin 4
a
nd 3: +4.8 to 5.
2V
Pin
7
a
nd 3: +3.1 to 3.4
V
Pin 8
a
nd 3: -1
2
.5 to -11.5
V
NO
NO
Is FFC bet
w
een
P4551 on M
a
in PCB
a
nd
P
6
50
2
on
A
MP PCB
d
amag
ed?
Repl
a
ce M
a
in PCB.
Repl
a
ce
V
olu
m
e PCB.
Is FFC bet
w
een
V
olu
m
e PCB
a
nd OLED PCB
d
amag
ed?
Y
E
S
Repl
a
ce FFC.
NO
Y
E
S
Repl
a
ce
A
MP PCB.
Repl
a
ce
S
MP
S
PCB.
S
till not re
m
edy.
S
till not re
m
edy.
Is the volt
ag
e
ch
a
n
g
ed
a
t P
7
005
on M
a
in PCB durin
g
V
olu
m
e rot
a
tion?
Bet
w
een Pin 3
a
nd 4:
V
olu
m
e Mini
m
u
m
: +0.1
V
or lo
w
er
V
olu
m
e M
a
x
m
u
m
: +3.1 to 3.4
V
Repl
a
ce M
a
in PCB.
Repl
a
ce
V
olu
m
e PCB.
NO
