Fukuda Denshi FCP-7101, Service Manual

Page: 24 / 170

Chapter 2
2 - 4
●
Unit doesn't start up when main power is switched ON.
Item to Check Method of Checking and Corrective Action Place to Check
Power cable Check that the power cable is plugged into the power
outlet and the AC adaptor. Check that the DC plug
is connected to the equipment. Power cable
DC plug
LED on the operation
panel
Cable Connect the DC plug and check that the [Main
Power] LED on the operation panel is kept ON. If
not, check the KEY cables connecting the operation
panel and the MAIN BOARD for a break, etc. [Main Power] LED on the
operation panel
KEY cable
Fuse
Using a voltmeter, check that F6 fuse is not blown.
F6
REFERENCE
P5-37
Checking the voltage
on MAIN BOARD Using a voltmeter, check that +18V, +5V, +3.3V,
+1.8V, +3.3VSTB, and +5VSTB are present at
C100, C311, C312, C317, C314, and C310 terminals
of the MAIN BOARD. When
+
5V or +3.3V is
present, LED4 or LED5 is lit.
C100, C310, C311, C312,
C314, C317
LED4, LED5
REFERENCE
P5-37,39
AC adaptor Check that the LED of the AC adaptor is lit.
Using a voltmeter, check that +18V is present at DC
plug terminal. LED of AC adaptor
DC plug
●
Battery operations are not executed.
Item to Check Method of Checking and Corrective Action Place to Check
Battery connection Open the battery compartment cover, and verify that
the battery pack is securely connected Battery compartment
REFERENCE
P3-2
Checking the charge After the end of charging the battery, start the
operation using the battery.
If the operation is impossible or soon fails, the
battery is deteriorated. Replace the battery with a
new one. Starting after charging.
Fuse
Using a voltmeter, check that F3 fuse is not blown.
F3
REFERENCE
P5-37
Checking the voltage
on MAIN BOARD Using a voltmeter, check that the battery pack
voltage, +5V, +3.3V, +1.8V, and +3.3VSTB are
present at C100, C311, C312, C317, and C314
terminals of the MAIN BOARD. When
+
5V or
+3.3V is present, LED4 or LED5 is lit.
C100, C311, C312, C314,
C317
LED4, LED5
REFERENCE
P5-37,39