Adjustment - JVC AV-N29F45/S Service Manual

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.
Item
VIDEO STATUS
TINT / COLOR / PICTURE / BRIGHT / DETAIL
COLOR TEMPERATURE
THEATER PRO
VSM
BASS / TREBLE / BALANCE
BBE
A.H.S
ASPECT
SECTION 4

ADJUSTMENT

4.3 MEASURING INSTRUMENT AND FIXTURES
• DC voltmeter (or digital voltmeter)
• Oscilloscope
• Frequency counter
• Signal generator (Pattern generator) [NTSC]
• TV audio multiplex signal generator
• Remote control unit
4.4 ADJUSTMENT ITEMS
CHECK ITEM
• B1 POWER SUPPLY check
• HIGH VOLTAGE HOLD DOWN check
TUNER / IF CIRCUIT
• IF VCO adjustment
FOCUS
• FOCUS adjustment
DEFLECTION CIRCUIT
• V. SIZE / V. POSITION (4:3) adjustment
• V. SIZE / V. POSITION (16:9) adjustment
• H. POSITION / H. SIZE / SIDE PIN (4:3) / (16:9) adjustment
VIDEO CIRCUIT
• WHITE BALANCE(High Light & Low Light) adjustment
• SUB BRIGHT adjustment
• SUB CONTRAST adjustment
Preset value
MTS CIRCUIT
STANDARD
• MTS INPUT LEVEL adjustment
0
• MTS SEPARATION adjustment
LOW
OFF
OFF
0
OFF
OFF
4:3
(No.YA058)1-11