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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.
Item
PICTURE MODE
CONTRAST / BRIGHTSHARP / COLOUR / HUE
COLOUR TEMP
DIGITAL VNR
BASS / TREBLE / BALANCE
HYPER SOUND
ZOOM
SLEEP TIMER
SECTION 4
ADJUSTMENT
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 ITEM
• B1 POWERSUPPLY 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
• CORNER adjustment
• ANGLE adjustment
Preset value
• BOW adjustment
• V.S-SHAPE CORRECTION & V.LINEARITY adjustment
STD
VIDEO CIRCUIT
Centre
• WHITE BALANCE adjustment
NORMAL
• SUB BRIGHT adjustment
AUTO
• SUB CONTRAST adjustment
• SUB COLOUR l adjustment
Centre
• SUB COLOUR ll adjustment
OFF
• SUB HUE l adjustment
FULL
• SUB HUE ll adjustment
OFF
VSM PRESET SETTING
• VSM PRESET setting
(No.YA063)1-17
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