Haier ULT-15M, Руководство по обслуживанию

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No voice
Check audio si
gnal i
nput
Check per
iph
er
y
audi
o
equipm
ent
Check pi
n7 of u3/T
PA1517 (for 11-12v)
N
Y
Y
N
Check pin8 of u3(>9.2v)
Check po
w
e
r
suppl
y of u3
Check volume\
.mute
Reset
Check signal output of CN11
Y
N
Check
speak
loud
er
N
Y
Check u25
Check signal i
n
put
of pin1,3of u3
Y
N
Y
N
Check u3
4,6 for signal output
Check u2
1
60/61 for signal input
Y
N
Broken u3
or E45
Check nets bet
w
e
en
CN11 a
nd u3
Check part nets of U21 60,61 And U3 1,9
Check audio i
nput signal:
SC
A
R
T
:
U2
1pi
n56,57
AV
:
U21 p
in4
9,50
PC:
U21 p
in5
3,54
Broken u2
1
or check
Suppl
y of
u21
Check nets bet
w
e
e
n
audi
o inp
ut
and u2
1
20