Y B 5 5 0 P E O P E R AT I O N M A N U A L
USING THE LOCK SWITCH
Placing the LOCK switch into the ON position will render all buttons and the FINE TUNING control inoperative. If the radio is turned on while LOCK is on, the volume control is still operative. This is an excellent feature to use when traveling. Before placing the radio into a suitcase, purse or briefcase, turn it off and then lock it. This will prevent accidental turn- on and battery drainage.
PREVENTING BATTERY ACID LEAKAGE
To avoid battery acid leakage, only use high quality alkaline or rechargeable
is not covered by warranty and voids the warranty.
TROUBLESHOOTING
RADIO WILL NOT TURN ON
•Assure that the LOCK switch is in the OFF position
•Assure that the radio is powered by either batteries or an AC adaptor
•Assure that the AC adaptor is plugged into the household outlet (mains socket) and into the radio’s DC socket. Take care not to plug it into the ear phone socket or the anten- na socket. The AC adaptor may be defective
•Assure that batteries are inserted with correct polarity
•Assure that the batteries are not depleted
CLOCK SHOWS IN DISPLAY, BUT RADIO WILL NOT TURN ON
There are two possibilities: dead batteries or the LOCK switch is ON.
SHUTS OFF ABRUPTLY WHILE PLAYING DURING BATTERY USE
This is caused by depleted batteries.
SHUTS OFF ABRUPTLY WHILE BEING MOVED DURING AC ADAPTOR USE
This is caused by a broken wire or loose connection in the AC adaptor cord.
OPERATES ERRATICALLY
Perform a RESET, as described in the section titled RESET PROCEDURE.
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