Player Checkout Procedure
Section 4
January 2009
Digital Talking-Book Player
43
Library Guide
4.2
Operation on AC Power
Preconditions:
1.
No DTB cartridge is inserted in the player.
2.
No AT-device or USB flash drive is inserted in the AT device USB port.
3.
The AC power cord is not connected to AC mains power.
4.
The player is off.
Methodology:
The player will power on when its cord is plugged into an AC power source and render a
“Player on”
message. Apply AC power and listen for this message.
1. Plug the player into a power outlet.
?
Did the player announce
“Player on”
without an additional error message?
Yes:
The player operates on AC power.
Continue to section 4.3.
No:
There may be a fault with the AC subsystem, speaker audio
subsystem, or microprocessor system.
If the player announces
“Player on”
and
“Power error”
there may
be a fault with the battery power system.
If the player announces
“Player on”
and
“System error”
there may
be a fault with the microprocessor system.
Send the player for
servicing.
4.3
Operation on Battery Power
Preconditions:
1.
No DTB cartridge is inserted in the player.
2.
No AT-device or USB flash drive is inserted in the AT device USB port.
3.
The player has a charged (not necessarily fully charged) battery or has been plugged in for a sufficient
time to minimally charge the battery.
4.
The AC power cord is not connected to AC mains power.
5.
The player is off.
Methodology:
The player will announce
“Player on”
when it is turned on.
Turn on the player and listen for this message.
1. Turn the player on by pressing the Power button.
Listen for the
“Player on”
message.
?
Did the player announce “Player On” when powered on?
Yes:
The player operates on battery power.
Continue to section 4.4.
No:
There may be a fault in the battery power subsystem.
Send the player for
servicing.