4
MC-S50
Work procedure
Preparation:
1. Make sure that no battery is loaded in the set.
2. Start up the test mode “apollo_service.exe” of the service tool (J-2507-037-1) from the PC, and check that the following screen
appears.
3. Connect PC to this set with a USB cable. Check that the block
1
of the following screen “open”, and “1PC” is displayed on the LCD
of the set. (The block
1
will “close” if the set is disconnected again)
At this time, a sine wave is outputted from the headphone. Also, the model name is displayed in the block
qd
of the screen.
Note:
If the block
1
does not “open”, the circuits in LOGIC board will be faulty. Audio signals are outputted from the reference signal in the DSP of
the set.
1
