
9. TROUBLE DIAGNOSIS
9-1. Faulty Start (F/R lights OFF , F-PCB Power OFF)
Start
Power cord or Fuse | Y |
| |
is disconnected ? |
|
N |
|
1’st power of SMPS | N |
| |
is on? |
|
Y |
|
Main PCB Fuse is | Y |
disconnected? |
|
N
VoltageN (DC12V/14.5V/5V) on
Main PCB is OK?
Change the Main Fuse
(AC250V 15A)
(In the left side of
machine compartment)
Check power Cord connection from machine compartment and to CN1 of
Change the Fuse
(AC250V 3.15A)
(on the Main PCB)
Y
Wire connection of
N
※Refer to the
Y
Change Main PCB
Checkup and connect
Change
※How to replace Front PCB
1)Insert a flat tip driver into the left down groove of panel frame and snap it out smoothly.
2)Separate 2 housings of 10P / 7P from Front PCB. (Do not hold only wires to pull out.)
3)Unscrew (7 points) to remove Front PCB.
*Follow the reverse order when assembling.
53