1-14 (No.52200)
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.
(7) Preparation for adjustment.
Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE CONTROL UNIT.
4.2
MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) HV voltmeter
(3) Oscilloscope
(4) Signal generator (Pattern generator : PAL / SECAM / NTSC)
(5) Remote control unit
4.3
ADJUSTMENT ITEMS
CHECK ITEMS
• B1 POWER SUPPLY check
• HIGH VOLTAGE check
TUNER / IF CURCUIT
• IF VCO check
FOCUS
• FOCUS adjustment
VSM PRESET SETTING
• VSM PRESET
VIDEO CIRCUIT
• WHITE BALANCE adjustment
• SUB BRIGHT adjustment
• SUB CONTRAST adjustment
• SUB COLOUR-1 adjustment
• SUB COLOUR-2 adjustment
• SUB HUE-1 adjustment
• SUB HUE-2 adjustment
• COLOUR DECODER VCO 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
AUDIO CIRCUIT
Item
Preset value
PICTURE MODE (VSM)
STANDARD
WHITE BALANCE
MID
DIGITAL VNR
AUTO
Digi Pure
AUTO
BASS / TREBLE / BALANCE
Center
CINEMA SURROUND
OFF
ZOOM
REGULAR
SLEEP TIMER
OFF
