8 - 4
7.3
Trouble shooting
Make the next flow chart a hint because of a solution of a problem.
7
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
OK
NG
NG
OK
No
NG
NG
No
Are there any
alarm indication on the
operation panel?
Is this 'RUL'
alarm?
Indication
abnormal
Is
the pilot lamp
turned
on?
Replace CMA-705 RX
PC board
Is this 'TUL'
alarm?
Replace CMB-257 TX
PC board
Is this 'OH'
alarm?
Replace CAH-559 PA
PC board
Is this 'LP'
alarm?
end
*3
Check if the voltage teminal 9 &
8 of PS1 is specified AC voltage.
(AC85-132V or 170-264V)
CAUTION:
The terminals High Voltage
*1
Check the AC powervoltage at the
teminal connector for the power
cable.
(AC85-132V or 170-264V)
CAUTION:
The terminals High Voltage
*2
Check if the voltage teminal 2 &
5 of PS1 is specified DC voltage.
(DC13.6 +/-10%)
check
thePower line
*1
Check
12Vdc internal
line *2
Check
the input
voltage of the
power supply
unit *3
Replace DC
power supply
Fix the power
line trouble
replace the
pilot lamp
Check the wirings
between power supply
and connector
Are the control
functions well?
Replace CDE-885
Control PC board
