1-12 (No.YA164)
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 ADJUSTMENT
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
4.3 MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) Oscilloscope
(3) Signal generator
(Pattern generator : PAL / SECAM / NTSC)
(4) Remote control unit
4.4 ADJUSTMENT ITEMS
CHECK ITEMS
B1 POWER SUPPLY check
HIGH VOLTAGE check
IF VCO check
FOCUS
FOCUS adjustment
DEFLECTION CIRCUIT
V. POSITION adjustment
V. SIZE adjustment
H. POSITION adjustment
H. SIZE adjustment
SIDE-PIN adjustment
TRAPEZIUM adjustment
UPPER / LOWER CORNER PIN adjustment
PARALLEL(TILT) adjustment
BOW adjustment
V. S-SHAPE CORRECTION & LINEARITY adjustment
VIDEO CIRCUIT
WHITE BALANCE adjustment
SUB BRIGHT adjustment
SUB CONTRAST adjustment
SUB COLOUR adjustment
SUB HUE adjustment
COLOUR DECODER VCO adjustment
VSM PRESET SETTING
VSM PRESET
PIP SETTING
PIP POSITION adjustment
Item
Preset value
PICTURE MODE
BRIGHT
CONTRAST / BRIGHT / SHARP / COLOUR / HUE CENTRE
WHITE BALANCE
STANDARD
DIGITAL VNR
AUTO
DIGIPURE
AUTO
PULL DOWN
AUTO
BASS / TREBLE / BALANCE
CENTRE
CINEMA SURROUND
OFF
ZOOM
REGULAR
PICTURE TILT
CENTRE
