Led/Illumination; Illumination - Sony Xperia ZR Troubleshooting Manual

Problem Areas
1.5

LED/Illumination

1.5.1 Illumination

Check:
Inspect the lower part of the Display.
Action:
If dirty – clean it.
Check:
Inspect the Lightguide and the Lightguide Sheet.
Action:
1. If not properly mounted – remount the Lightguide or
replaces the Lightguide Sheet.
2. If they are damaged – replace them.
Check:
Inspect the FPC Relay.
Action:
1. If not properly connected – disconnect and reconnect.
2. If the FPC Relay is damaged – replace it.
Check:
Inspect the connection between the Display and the main
PBA.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean the BtB connector.
1273-7035 Rev 3
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Troubleshooting Guide (mech)
11(40)