AV-21W33
AV-21W33B
SERVICE ADJUSTMENTS
ADJUSTMENT PREPARATION
1. You can make the necessary adjustments for this unit with either the remote control unit or with the adjustment equipment and parts
as given below.
2. Adjustment with the remote control unit is made on the basis of the initial setting values, however, the new setting values which set the
screen to its optimum condition may differ from the initial settings.
3. Make sure that AC power is turned on correctly.
4. Turn on the power for the set and test equipment before use, and start the adjustment procedures after waiting at least 30 minutes.
5. Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
6. Never touch any adjustment parts, which are not specified in the list for this adjustment-variable resistors, transformers, capacitors, etc.
7. Presetting before adjustment.
Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit.
Y User mode setting position
Setting itemSetting value
PICTURE MODE(VSM)BRIGHT
VNROFF
BASS, TREBLE, BALANCECENTER
TINT, COLOR, BRIGHT, DETAILCENTER
PICTUREMAXIMUM
MEASURING INSTRUMENT
1. DC voltmeter (or Digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator) [NTSC/ PAL]
4. Remote control unit
ADJUSTMENT ITEMS
DEFLECTION CIRCUIT ADJUSTMENTS
YB1 POWER SUPPLYY
FOCUS ADJUSTMENTAdjustment of V. SLOPE
Y
Adjustment of V. POSITION
YIF CIRCUIT ADJUSTMENTS
Adjustment of VCO (CW)Adjustment of V. HEIGHT
Adjustment of DELAY POINT (AGC TAKE-OVER)Adjustment of H. POSITION
YVC (VIDEO/CHROMA) CIRCUIT ADJUSTMENTSAdjustment of V. S-CURVE
Adjustment of WHITE BALANCE (Low light)YVSM PRESET SETTING
Adjustment of WHITE BALANCE (High light)YPRESET SETTING
Adjustment of SUB BRIGHTYAUDIO ADJUSTMENT
Adjustment of SUB CONTRASTYPURITY ADJUSTMENT
Adjustment of SUB COLOR-?????YCONVERGENCE ADJUSTMENTS
Adjustment of SUB COLOR-??????????Adjustment of STATIC CONVERGENCE
Adjustment of SUB TINT-?????Adjustment of DYNAMIC CONVERGENCE
Adjustment of SUB TINT-??????????
14No. 52075 |
ACEC
