Service Manual
Chapter 2. Troubleshooting Guide
Problems Condition
Probable
Reasons
Solutions
1.no power
1.power cable 1.cable broken
1.replace power cable
2.fuse
1.fuse broken
1.replace fuse
3.PCBA
1.center PCBA NG
1.replace center PCBA
2.power PCBA NG
1.replace power PCBA
2.display L.E.D. unlight 1.cover broken 1.L.E.D. broken or NG
1.replace L.E.D.
2.PCBA
1.MPU NG
1.replace MPU
2.cable broken
1.replace cable
3.button NG
1.button
1.button NG
1.replace button
2.PCBA
1.receiver NG
1.replace receiver
2.cable broken
1.replace cable
3.power PCBA NG
1.replace power PCBA
4.no sound
1.signal cable
1.signal cable NG
1.replace signal cable
2.PCBA
1.AMP PCBA NG
1.replace AMP PCBA
2.RCA socket NG
1.replace RCA socket
5.noise
1.speaker
1.speaker NG
1.replace speaker
2.PCBA
1.power PCBA NG
1.replace power PCBA
2.AMP PCBA NG
1.replace AMP PCBA
Version 1.0
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