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- 21 -

1) Doesn’t minute discharge at module. 
2) Non does not come in into the front LED. 

Is plug in power cord?

Plug in power cord.

Yes

No

Is the Line Filter and Power

Board Cable connected?

Connect the Cable.

Yes

No

Is the Fuse(F101) on

Power Board normal?

Replace the Fuse.

Yes

No

Is the Power Board and 7P of

VSC Board Cable connected?

Connect the Cable.

Yes

No

After the cable connect is removed
to Power Board(except the CN101
connection cable), the AC voltage
marking is authorized on manual.
When ST-BY 5V is not operated,
replace Power Board.

- 22 -

1) After once shining, it does not discharge minutely

from module.

2) The Rely falls.(The sound is audible “click”) 
3) It is converted with the color where the front LED 

is red from green.

Is the Power Board

normal ?

Replace Power

Board.

Is output the normality Low/High

voltage except Stand-by 5V?

Yes

No

No

Is the each connector

normal?

Replace the

connector.

Replace

Y-Board.

After connecting well each connector,

the normality it operates? 

Yes

No

No

Is the Ctrl Board

normal?

Replace

X-Board.

Is the output voltage normal after

remove P1, 2, 4, 9, 10 connector of

Ctrl-B/D?

Yes

No

Yes

Is the Y-Board

normal?

Is the output voltage
normal after remove

P5, P6 connector of

Y-B/D?

Is the Fuse(FS2) on Y-B/D normal?

(In case of open is replace)

Yes

No

Yes

Yes

Replace

Z-Board.

Is the Z-Board

normal?

Is the output voltage
normal after remove

P1 connector of Z-

B/D?

Is the Fuse (FS1, FS2) on Z-B/D

normal? (In case of open is replace)

Yes

No

Yes

Is the X- Board

normal?

Is the output voltage normal after

remove P1, 2, 3, 4, 5 connector of

X-B/D?

After remove P1, P2, P3 output voltage
normality: Replace Right X-B/D.
After remove P4, P5 output voltage
normality: Replace Left X-B/D.

Yes

No

Yes

Is the 

VSC Board normal?

Is the output voltage normal after

remove P1001, P1100?

After crisis COF of each board, check the normality operates.
If in case normality operates, correspondence COF Fail is
replace the module.

After remove P1001, 1100 normal
operation: Replace VSC Board.

Yes

No

Is the COF of X, Y, Z

normal ?

No

Yes

Yes

- 23 -

1) Doesn’t minute discharge at module. 
2) It maintains the condition where the front LED is green.

Is the Power Board

normal?

Replace the

Power Board.

Is output the normality Low/High

voltage except Stand-by 5V?

Yes

No

No

Is the each connector

normal?

Replace the

connector.

Replace

Y-Board.

After connecting well each connector,

the normality it operates? 

Yes

No

No

Is the 

Ctrl Board normal?

Replace

X-Board.

Is the output voltage normal after

remove P1, 2, 4, 9, 10 connector of

Ctrl-B/D?

Yes

No

Yes

Is the Y-Board

normal?

Is the output voltage
normal after remove

P5, P6 connector of

Y-B/D?

Is the Fuse(FS2) normal on Y-B/D?

(In case of open is replace)

Yes

No

Yes

Yes

Replace

Z-Board.

Is the 

Z- Board normal?

Is normal the output

voltage after remove

P1 connector of 

Z-B/D?

Is the Fuse(FS1, FS2) normal on

Z-B/D? (In case of open is replace)

Yes

No

Yes

Is the 

X- Board normal?

Is the output voltage normal after

remove P1, 2, 3, 4, 5 connector of

X-B/D?

After remove P1, P2, P3 output voltage
normality: Replace Right X-B/D.
After remove P4, P5 output voltage
normality: Replace the Left X-B/D.

Yes

No

Yes

Is the 

VSC Board normal?

Is the output voltage normal after

remove P1001, P1100?

After crisis COF of each board, check the normality operates.
If in case normality operates, correspondence COF Fail is
replace the module.

After remove P1001, P1100 normal
operation: Replace the VSC Board.

Yes

No

Is the COF of X, Y, Z

normal?

No

Yes

Yes

- 24 -

1) LED is green.
2) The minute discharged continuously becomes

Accomplished from module.

Is the LVDS cable

normal ?

Is the VSC Board

normal?

Is the LVDS cable

connected well?

Cable inserts well.

Yes

No

No

Yes

Does the FIL8532 IC

(IC800) Operates ?

Replace FIL8532 IC

(IC800).

No

Is the Ctrl Board of

Module normal?

Replace Ctrl B/D.

No

No

Yes

Replace VSC B/D

Replace the cable.

Yes