Yamaha PDM-4210, Руководство по обслуживанию

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43
PDM-4210
PDM-4210
NO Fault contents Fault status Suspected
fault
location
9 Bar width of 1/8 or multiples of
1/8 of the screen height, is
displayed.
Abnormal (Screen does not
light) Panel chassis
10
Horizontal bar
Bar width of 1/2 of the screen
height.
Abnormal display
(Screen does not light)
Panel chassis
Y-SUS
X-SUS
Above boards
are connected.
11 Image sticking Fixed display contents are
always displayed. Panel chassis
12 Stains Oval-shaped points having
abnormal luminance are
scattered in the upper or lower
part of screen. Panel chassis
13 Twinkle The entire screen momentarily
becomes brighter or darker.
14 Flicker The entire screen flickers
continuously. Poor connector
contact
(CN2,3,21,31)
15 Luminance is
abnormal
Screen is too dark or too bright.
(Out of specifications)
16 Chrominance
is abnormal
Colors cannot be displayed
correctly. LOGIC
17 Sync is
disturbed
LOGIC
18 Picture
distorted
LOGIC
19 Steps of
gradation are
skipped
Luminance linearity is poor. LOGIC
20 Abnormal
sound
PSU
X-SUS
Y-SUS
(Core is broken,
or transformer
is abnormal.)
21 Control on
external
Contrast, color temperature
adjustment and
ϒ
cannot be
LOGIC
ABCDEF