ALI M5677, Service Manual

Page: 33 / 33

Issue Cause Solution
Power plug is not inserted insert power plug
、
、 、
、 、 、
no power on press power button
no power on press power button
defect replace
RC battery is not installing install battery in RC
LINE in wire is not connecting connecting LINE IN wire
defect replace
in wire is not connecting connecting AUX IN wire
wire is not connecting connecting optical wire
defect
replace
coaxial wire is not connecting connecting coaxial wire
no
sound output
no sound output
power light is not bright
no sound output
no display
No remote control receiver
LINE IN no sound output
IN no sound output
EC3
replace
replace
EC4 F1
U2
defect
IC701
defect
F1 U2 Q3 U1
IC701
IC1
defect
replace
IR1
IR1
U4
U4
U1 U1
defect
replace
U1
U8
U1
U8
U2 U2
、
、
、
- 32-
LF2
、 、
U1
、
Q3
、
LF2
、
T1
IC1
、
T1
BT
BT
defect
replace
CD
CD
FM