SONY HCDJ300
Instrukcja Serwisowa

No Tray open / close operation

Is the connector properly inserted into CN800 ? Y When pressing the EJECT SW, does the peak value of the IC400 5Pin become 3.3V? Y When it is in the Tray Open mode, does the IC400 6Pin show 1.65V?

N

Try the operation after inserting the connector to CN800 properly.

N

Check the SW701 patterns and the welding condition.Replace it if the condition is normal.

N

Check the SW701 Open and Close patterns and the welding condition. Replace it if the condition is normal. Y
CLOSE

Y
OPEN

When pressing the EJECT SW, does the IC500 Pin26 vary from 0V to the value between1.15V and 2.15V and then show 1.65V finally?

N

Check the condition and patterns of R615, R616. If they are normal, replace IC500.

N

When pressing the EJECT SW, does the IC500 26Pin vary from 1.65V to the value between 1.15V and 2.15V and then show 0V finally?

N

Y

Is the Tray Motor able to output the Pin49 and 50 of IC500? Y

Y

Replace TRAY MOTER.

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