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2, in the process of battery powering, when the battery voltage drops to the protection
threshold value, it will automatically cut off the button input and remote control input, as
well as the out. LCD shall display "Battery: LOW" for user's attention to charge.
3, if the power has been disconnected in time or charged, when the battery voltage falls
below the protection threshold value, all power consumption modules will automatically
be cut off (except the control module) to protect the battery from damage.
BATTERY CHARGE:
Charging method: the charger cable connects the host to the charger, which can achieve
the battery charging. The charging time is about 1.5-3 hours. When all indicating lights
on the charger turn from red to blue, it indicates the completion of charging( Two lights
is red When Charging).
Product function block diagram:
1）positive.
2) left.
3) right
Functions of each module are as follows:
LCD display: relevant information is synchronous displayed as follows:
1), in the upgrade process, whether the SD card is detected, whether the card owns
upgrade file, and whether the upgrade is complete shall be displayed.
2), power initialization shows whether the SD card is detected, whether the card contains
music files, and finally indicates the system is ready.
3), in normal playback, it displays the file name of current playing track and the location
in music file system.
4), displays play/pause status.
5), when the folders are in operation, it displays folder names and total number of tracks
in folders.
6), when the battery voltage is low, it displays the battery voltage is low to remind the
charge.
Backlight buttons: on / off LCD backlight. Meanwhile serves as the automatic start
button of upgrade operations.
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