(No.YA073)1-11
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
• DC voltmeter (or digital voltmeter)
• Oscilloscope
• Signal generator (Pattern generator) [NTSC]
• TV audio multiplex signal generator
• Remote control unit
4.4 ADJUSTMENT ITEMS
CHECK ITEM
• B1 POWER SUPPLY adjustment
• HIGH VOLTAGE HOLD DOWN check
TUNER / IF CIRCUIT
• IF VCO adjustment
ADJUSTMENT OF FOCUS
•FOCUS
DEFLECTION CIRCUIT
• V. SIZE / V. CENTER adjustment
• H. CENTER adjustment
VIDEO CIRCUIT
• WHITE BALANCE (LOW LIGHT) adjustment
• WHITE BALANCE (HIGH LIGHT) adjustment
• SUB BRIGHT adjustment
• SUB CONTRAST adjustment
MTS CIRCUIT
• MTS INPUT LEVEL adjustment
• MTS SEPARATION adjustment
Item Preset value
VIDEO STATUS STANDARD
TINT / COLOR / PICTURE / BRIGHT / DETAIL 0
COLOR TEMPERTURE LOW
BASS / TREBLE / BALANCE Center
MTS STEREO
BBE OFF
HYPER SORROUND OFF
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