SONY KDC-3028
Service Manual

KDC-3028/328
SPECIAL MODE
� Security � How to enter the forced POWER ON mode
While �� � � �� is being displayed, while simultaneously pressing �Q� key and �4� key, press �RESET� button, With this, it is possible to turn the power on for 30 minutes only.

� DC offset error detection confirmation mode
Confirmation mode : While depressing PRESET �3� key and PRESET �6� key simultaneously, press on the �RESET� button. (Display) Detected : DC _ ERR _ _ Not detected : DC _ OK _ _ _ * By pressing �AUTO� or �TI� key while �DC _ ERR _ _� is being displayed, detection status is cleared. This will result in the display of �DC _ OK _ _ _�. Release Method : Press �RESET� button.

� How to clear the programmable security code
1. While �� � � �� is being displayed, press � � �� display disappear. 2. Input �KCAR�, using the remote controller. Press �5� key of the remote controller twice (Input for �K�) and press � � key. Press �2� key of the remote controller 3 times (Input for �C�) and press � � key. Press �2� key of the remote controller once (Input for �A�) and press � � key. Press �7� key of the remote controller twice (Input for �R�) and press � � key. 3. The security is cleared and the unit enters STANDBY source mode. 4. If wrong codes are input, �� � � �� will be displayed again. � for 3 seconds or more while pressing the �AUTO� key. This makes the �� �

� Mechanism memory clear confirmation mode
Confirmation mode : While depressing �ATT� key and �Q� key simultaneously, press �RESET� button. (Display) : MEM _ CLR _ * Two seconds after the confirmation mode boots up, Mechanism memory clear as a result is displayed. (Display) Clear status display normal completion : CD _ O _ _ _ Clear status display abnormal completion : CD _ X _ _ _ Release Method : Press �RESET� button.

� FM/AM channel space switching
When in the conditions of ACC ON and POWER OFF, while depressing PRESET �1� key and PRESET �5� key simultaneously, press �SRC� key.

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