AV-21D81
AV-20N81
AV-16N81
AV-16N81G
SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There are 2 way of adjusting this TV: One is with the7. Preparation for adjustment
REMOTE CONTROL UNIT and the other is the conventionalUnless otherwise specified in the adjustment instructions, preset
method using adjustment parts and components.the following functions with the REMOTE CONTROL UNIT.
2. The adjustment with the REMOTE CONTROL UNIT is madeUser menu preset value
on the basis of the initial setting values. The setting values
MENU ITEMPRESET VALUE
which adjust the screen to its optimum condition may differ
from the initial setting values.PICTURE MODE (VSM)BRIGHT
3. Make sure that connection is correctly made to AC power
VNROFF
source.
4. Turn on the power of the set and equipment before use, andTINT / COLOUR / BRIGHT /
CENTER
SHARP / CONT.
start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise specified, prepare the most suitable reception
BLUE BACKOFF
or input signal for adjustment.
6. Never touch any adjustment parts, which are not specifiedOFF TIMEROFF
in the list for this adjustment VRs, transforms, condensers,
ECO SENSOROFF
etc.
AUTO SHUT OFFOFF
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
Adjustment item
B1 POWER SUPPLYV/C (Video / Chroma) circuit adjustment
FOCUS adjustmentVSM PRESET setting
IF circuit adjustmentPURITY / CONVERGENCE adjustment
No. 5190217 |
ACEC
