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► Error Code
H1-4420
H1-4520
► Error message
Tray 4 door is open. Close it
Tray 5 door is open. Close it
► Symptom
LCT Top Cover is open. / I/L-Switch harness or connector is defective.
► Troubleshooting method
1) Open and close the LCT Top Cover correctly.
2) If the problem persists, check the following.
a) Check if I/L-Switch(Top Door Open Switch)(JC39-02346A) is not operating normally. If it is defective,
replace it.
b) If the Top Door Open Switch is OK, replace the LCT PBA(JC92-02738C).
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4. Troubleshooting
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Table of Contents
Troubleshooting
