Hitachi 55HDT52/DW1-U Service Manual page 37

Plasma display panel
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7. SCREEN CHECK
Preparation
(1) Set AC120±1V.
(2) Turn on the power and leave it more than 5 min.
(3) Receive circle pattern at 4:3 Expanded mode.
(4) Input 480p and 1080i circle pattern into Component
video 3. (ASPECT 16:9 Standard)
Checking
(1) Receive RF, 480p and 1080i signal, then check
the following items 1~4:
1. Check the symmetry of the pattern (right/left).
2. Check the horizontal position and the balance
(right/left).
3. Check the symmetry of the pattern (top/bottom).
4. Check the vertical position and the balance
(top/bottom).
Remarks
A
SCREEN
0
1
2
SIGNAL
Circle pattern
BACK TO ADJUSTMENTS
3
B
2
1
0
ASPECT
SPEC(A,B)
16:9 Standard
0 +/- 0.5
8. HDMI adjustment
a.
DVI compatibility check
Preparation
1. Prepare HDTV signal generator. (Zenith HD-SAT520)
2. Select DVI mode then 1080i format
3. Connect HDMI-DVI cable to the HDMI input on the
PDP set.
ATSC
Set Top Box
b.
DVI/HDCP/Timing (Display Position) Check
1. Set 1080i crosshatch with black background,
with a small color bar and small multi-burst.
(Confirm that the picture appears as shown
below or similar)
2. Press "INFO" button on remote control to
confirm that "1080i Format" indication appears.
3. Confirm that Horizontal and Vertical position
meet the following spec.
Chassis
Screen Size
a
b
c
d
a
9. FACTORY RESET
After all of the adjustments of main chassis are finished,
perform FACTORY RESET.
(1) Enter Adjustment Mode by the method described in
sub-items 1-1 and 1-2 from page 30. ("Adjustment
Procedure Start-up").
(2) From the first menu in Adjustment Mode, select
FACT RESET adjustment code.
(3) Activate FACT RESET by pressing "Right" cursor
key once.
(4) Other procedure to acces the FACTORY RESET is by
sending the 92 hex code with a programable R/C.
(5) The procedure of the FACTORY RESET process is
the following and the DATA table is shown next.
36
DW1U
DVI - HDMI
conversion cable
DW1-U
42"
unit
inch
mm
c
d
b

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