1-28 (No.YA100)
SECTION 4
ADJUSTMENT
4.1
ADJUSTMENT PREPARATION
(1)
There are 2 ways of adjusting this TV : One is with the
REMOTE CONTROL UNIT and the other is the
conventional method using adjustment parts and
components.
(2)
The adjustment using the REMOTE CONTROL UNIT is
made on the basis of the initial setting values. The
setting values which adjust the screen to the optimum
condition can be different from the initial setting
values.
(3) Make sure that connection is correctly made AC to AC
power source.
(4) Turn on the power of the TV and measuring instruments for
warning up for at least 30 minutes before starting
adjustments.
(5) If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors,
transformers and condensers) not shown in the adjustment
items of this service adjustment.
4.2
PRESET SETTING BEFORE ADJUSTMENTS
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
4.3
MEASURING INSTRUMENT AND FIXTURES
• Oscilloscope
• Signal generator (Pattern generator)
[NTSC / 525i / 1125i]
• TV audio multiplex signal generator
• Remote control unit
4.4
ADJUSTMENT ITEMS
POWER CIRCUIT [DISPLAY UNIT: PD-42X795]
• PDP POWER VOLTAGE adjustment
POWER CIRCUIT [DISPLAY UNIT: PD-50X795]
• PDP POWER VOLTAGE adjustment
• 525i A-D OFFSET adjustment
• 1125i BRIGHTNESS adjustment
• 1125i A-D OFFSET adjustment
• SUB SCREEN A-D OFFSET adjustment
• WHITE BALANCE (HIGHLIGHT) adjustment
• MTS INPUT LEVEL adjustment
• MTS SEPARATION adjustment
4.5
BASIC OPERATION OF SERVICE MODE
4.5.1 HOW TO ENTER THE SERVICE MODE
(1) Set to 0 minutes using the [SLEEP TIMER] key.
(2) Press the [VIDEO STATUS] key and [DISPLAY] key
simultaneously, then enter the SERVICE MODE.
(3) When the MAIN MENU SCREEN is displayed, press [1]
key to enter the adjustment mode.
NOTE:
• Before entering the SERVICE MODE, confirm that the
setting of TV / CATV switch of the REMOTE CONTROL
UNIT is at the "TV" side and the setting of VCR / DVD switch
is at the "VCR" side. If the switches have not been properly
set, you cannot enter the SERVICE MODE.
• When a number key other than the [1] to [3] key is pressed
in the MAIN MENU SCREEN, the other relevant screen may
be displayed.
This is not used in the adjustment procedure. Press the
[MENU] key to return to the MAIN MENU SCREEN.
4.5.2 HOW TO EXIT THE SERVICE MODE
Press the [ MENU ] key to exit the Service mode.
Setting item
Settings
VIDEO STATUS
STANDARD
BRIGHT / CONTRAST / COLOR / TINT
00
COLOR TEMPERATURE
LOW
DIG. NOISE CLEAR
OFF
COLOR MANAGEMENT
ON
DYNAMIC GAMMA
ON
NATURAL CINEMA
AUTO
TREBLE / BASS / BALANCE
00
BBE
ON
A.H.S
OFF
A.H.B
ON
MTS
STEREO
SMART SOUND
OFF
AUDIO OUT
FIX
ASPECT
FULL
SERVICE MENU
SERVICE MENU
1.ADJUST
1.ADJUST
2.SELF_CHK
2.SELF_CHK
3.I2C STOP
3.I2C STOP
MAIN MENU SCREEN
ADJUSTMENT MODE SCREEN
S001 PREPARE 000
S001 PREPARE 000
NTSC3 1409 DYN H
NTSC3 1409 DYN H
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