QT-CD250 (serv.man6). Including circuit diagrams - Sharp Audio Service Manual (repair manual). Page 13

– 13 –

Set the function switch to "POWER ON (TAPE PLAY, TUNER or CD)"  when pressing the "REVIEW(PRESET DOWN )" button
together with "PLAY/PAUSE (TUNING UP)" button.
The LCD display do not indicate the VOLUME level at this time.
But, the VOLUME level is "12" which is defaults level.

The VOLUME LEVEL can be change when press the "VOLUME UP" button either press the "VOLUME DOWN" button.
"VOLUME UP" button is pressed : (12 VoL) -> 30 VoL -> 30 VoL (30 is flashing)

"VOLUME DOWN" button is pressed : (12 VoL) ->  1 VoL->  0 VoL  ->  0 VoL (0 is flashing)

To change the tuning span: (default: AM 9 kHz/FM 50 kHz SPAN)
1. Set the function switch to TUNER.
2. Hold down the "MEMORY" button and the "PRESET DOWN button for at least 3-seconds.
    Release the button when "AM SP 9 kHz" and "FM SP 50 kHz" are displayed alternately.
3. Press the "BAND" button to select the "AM SP 10 kHz" and "FM SP 100 kHz" are displayed alternately.

4. Press the "MEMORY" button to set it when desired INTERVAL (SPAN) frequency displayed.
    The unit will return back to the normal frequency displayed.

1 sec

Displayed alternately
When press the "BAND" button

1 sec