Service Modes, Error Codes, and Fault Finding
EN 29
FHP PDP
5.
Figure 5-19 Fault symptom overview (1/3)
No Fault contents
Suspected fault
location
Analysis
procedure and
measure
1
After momentarily
going on, the screen
becomes black
immediately or after a
few seconds. Main
power is turned off.
X-SUS, Y-SUS
PSU
Panel chassis
LOGIC
ABUSL
ABUSR
Refer to the entire
screen does not
light.
2
Screen lights dimly
even on the back
screen
LOGIC
Replace LOGIC
board and folow
Logic Board
echange
procedure
3
Single vertical line (of
different color)
Panel chassis
LOGIC
Refer to vertical
Line / bar..
4
Vertical line from the
middle of effective scan
area (Vertical line of
different color)
Panel chassis
Replace panel
chassis
5
Bar width of 1/7 0f
horizontal size or in
multiples of 1/7, is
displayed. Abnormal
display.
Panel chassis
ABUSL ABUSR
LOGIC Above
boards are
connected
Refer to vertical
Line / bar..
6
Bar width of 3/7 or 4/7
of the screen width, is
displayed. Abnornial
display. (Vertical line of
different color)
Panel chassis
ABUSL ABUSR
LOGIC Above
boards are
connected
Refer to vertical
Line / bar..
7
Single horizontal line
(No light) or single
horizontal does not
light among the
effective scanning
area. Single horizontal
line does not light
Panel chassis
Replace panel
chassis
8
Every other line(No
light) Entire screen
X-SUS
Y-SUS
Replace X-SUS
Y-SUS board
Horizontal line
Fault status
Entire screen
does not light.
Vertical Line
Vertical bar
E_14580_005.eps
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