Philips DS9800W/93 - Troubleshooting

Troubleshooting
FLOW CHART NO.1
FLOW CHART NO.2
No effect on the remote control
Replace the batteries
Replace the remote conrol
Replace the MCU board
No Sound
Switch to state Wirless(Ipod)、MP3 LINK,
confirm whether all no sound
Ye s
Yes
No
Check the audio output cable
Check the sound channel
Yes
Cancel the mute setup
Replace the remote control board
Yes
Yes
Yes
No
No
No
No
9-1
Check the battery if there is power
Check the remote operation is normal or not
Check the remote control board CN002 pin 3.3V
power supply is normal or not
Check the power supply part of the circuit
Check the mute function is turned on
No
No
Test the amplifier output whether of normal
Check the CS48520, TAS5707 and public output portion
of the circuit