20
MCX-A10/MCX-SP10
MCX-A10/
MCX-SP10
Check that the
music lists can be taken
from the server.
• Trouble of network
• Trouble of wireless LAN card
• Trouble of CPU circuit in CORE Board
Check that time counts
in “Play Info” menu.
Can you hear the music ?
Good condition
• Trouble of audio circuits in D-AMP Board
OK
OK
NG
NG
NO
YES
<Step1>
<Step2>
<Step3>
Play any songs
Check the RESET signal
Reset circuit is defective
Check CPU clock
Was accessing
FLASH executed?
MAIN CPU may not boot up
OK
OK
NG
NG
NO
YES
<Step1>
<Step2>
<Step3>
Does the FLASH /CS
work continuously?
MAIN CPU may work well
Flash memory’s trouble
or the SDRAM (IC7, 8) is defective
YES
NO
<Step4>
193pin of CPU (IC3 in CORE Board ) is OK?
156pin and 162pin of CPU (IC3 in CORE Board ) is OK?
26pin of Flash memory (IC11 in CORE Board ) is OK?
X’tal is defective
• It is very difficult to find any other trouble around LSI because LSI is connected using the bus.
• However, if the trouble cause is not in the bus but something else, it may be possible to find it by using the TEST mode.
- Push TOP MENU & PLAY at the same time and power on.
- Monitor the log using LCD on MCX- A10.
●
When the unit can’t play music.
●
In case of CPU trouble on CORE Board
●
In case of other troubles
