Philips HTS4561/12, Руководство по обслуживанию, Страница: 12 / 45

2 - 3 2 - 3
All Functions
are not working Power Supply
is not working All Functions
have no Sound
Aux In has
no Sound
MP3 In has
no Sound MIC In has
no Sound Tuner has
no Sound Coaxial In has
no Sound Optical has
no Sound Ipod has
no Sound Touch key has
no function
All Functions
are not working
Check all cables of
system are loose or
bad insert
Standby led of panel
whether is light
Check F901 of power PCB
whether is bad
Check 2pin of CN903 and
3pin of CN904 Voltage if
are BK5V
Power Supply
is not working
All Voltages have
no output
+33V Voltage has no output
-27V Voltage has no output
+12V Voltage has no output
+5V Voltage has no output
BK5V Voltage has no output
Check all Voltages
are 3.3V and 1.8V
All Functions
have no Sound
IC5006
Check power IC Voltage
if is +33V
Check main pcb
Voltage if is +5V
Check AMP pcb Audio
Voltage if is 3.3V
Check AMP pcb
Voltage if is P+12V
Check 39pin of IC5006
if is high3.0V or low 0V
Touch key has
no function
Check pin17 of U1
Voltage if is +5V
Aux In has
no Sound
MP3 In has
no Sound
Change this jack
MIC In has
no Sound
Change this jack
Tuner has
no Sound
Coaxial In has
no Sound
Optical has
no Sound
Check JK303/3Pin
3.3V
Ipod has
no Sound
REPAIR INSTRUCTIONS