Service Adjustments; Adjustment Items - JVC AV32L5EKGY Service Manual

AV32L5EKGY
AV32L5EIGY

SERVICE ADJUSTMENTS

BEFORE STARTING SERVICE ADJUSTMENT
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 setting (adjustment) using the REMOTE CONTROL
UNIT is made on the basis of the initial setting values. The
setting values that adjust the screen to the optimum
condition can be different from the initial setting values.
3. Make sure that connection is correctly made to AC power
source.
4. Turn on the power of the TV and measuring instrument for
warming up for at least 30 minutes before starting adjustment.
5. If the receive or input signal is not specified, use the most
appropriate signal for adjustment.
6. Never touch parts (such as variable resistors, transformers and
condensers) not shown in the adjustment items of this service
adjustment.
MEASURING INSTRUMENT AND FIXTURES
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4. Remote control unit

ADJUSTMENT ITEMS

CHECKING ITEMS.
●
ADJUSTMENT OF FOCUS AND SCREEN.
●
IF CIRCUIT ADJUSTMENT.
●
VSM PRESET SETTING.
●
VIDEO / CHROMA CIRCUIT ADJUSTMENT.
●
PIP CIRCUIT VCO ADJUSTMENT.
●
AUDIO CIRCUIT ADJUSTMENT. (DO NOT ADJUST)
●
DEFLECTION CIRCUIT ADJUSTMENT.
●
12
7. Preparation for adjustment (presetting):
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT:
Setting position
PICTURE MODE (VSM)
TINT, CONTRAST, BRIGHT
SHARP, COLOUR
SLEEP TIMER
BALANCE
ECO
ZOOM
No. 51779
NORMAL
CENTER
OFF
CENTER
OFF
PANORAMIC