AV-27F802
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, howeverch set the, the new setting values whi
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
VIDEO STATUSSTANDARD
HYPER SURROUNDOFF
BASS, TREBLE, BALANCECENTER
TINT, COLOR, PICTURE,
CENTER
BRIGHT, DETAIL
MEASURING INSTRUMENT
1. DC voltmeter(or digital voltmeter)
2. Oscilloscope
3. Signal generator ( Pattern generator ) [NTSC]
4. Remote control unit
5. TV audio multiplex signal generator
6. Frequency counter
7. Resistor (1MO)
ADJUSTMENT ITEMS
YCheck of B1 POWER SUPPLYYMTS circuit adjustment
YRF AGC adjustmentINPUT LEVEL check
YFOCUS adjustmentSTEREO VCO adjustment
YWHITE BALANCE adjustmentSAP VCO adjustment
WHITE BALANCE (Low Light) adjustmentFILTER check
WHITE BALANCE (High Light) adjustmentSEPARATION adjustment
PIP HIGH LIGHT WHITE BALANCE Adjustment
YBRIGHT adjustment
SUB BRIGHT adjustment
YCONTRAST adjustment
SUB CONTRAST adjustment
YDEFLECTION adjustment
V.CENTER and TRAPEZIUM adjustment
V-SIZE and V-LINEARITY adjustment
H SIZE and H POSITION adjustment
SIDE PIN and CORNER PIN adjustment
PIP DISPLAY POSITION adjustment
YCHROMA adjustment
SUB COLOR adjustment
SUB TINT adjustment
No. 5178511 |
ACEC
