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