Aiwa TV-C1400, Руководство по обслуживанию

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1. Use the numeric keys on the remote control to set the receiv-
ing channel to Pr91.
2. Set Sharpness on the Picture Menu screen to 0.
3. Press the buttons on the remote control in the following order:
Skip (R)
→
Move (G)
→
Menu
The following menu will appear on the TV screen:
SVC V0
R BIAS
159
G BIAS 136
B BIAS 127
R DRIVE 35
G DRIVE 31
B DRIVE 32
V. CENTER 10
V.SIZE 23
H.CENTER 28
VCO 07
VCO FIN 107
VCO-L 05
VCO-L FIN 113
AGC 44
LED EAST No
Pr 01
REMOCON A
* To terminate the menu screen, press the power button on TV
or remote control to turn power off.
4. AFT
PAL
Input frequency: 38.9 MHz
Measuring instrument: Pattern generator/PAL
4-1. Set the pattern generator frequency to 38.9 MHz.
4-2. Connect the pattern generator output (38.9 MHz) to the IF
pin of tuner U101.
4-3. Choose VCO from the menu screen.
4-4. Press the "Vol+" button on the remote control: "Please wait!"
will blink on the screen, and after several seconds, it will
disappear.
SECAM
Input frequency: 34.2 MHz
Measuring instrument: Pattern generator/SECAM
4-5. Set the pattern generator frequency to 34.2 MHz.
4-6. Connect the pattern generator output (34.2 MHz) to the IF
pin of tuner U101.
4-7. Choose VCO-L from the menu screen.
4-8. Press the "Vol+" button on the remote control: "Please wait!"
will blink on the screen, and after several seconds, it will
disappear.
5. Screen
Input signal: Stair-step
Adjustment point: SFR touched at lever part of FBT (T402).
Measuring instrument: Pattern generator/PAL
5-1. Set the TV to the "Normal I" mode.
5-2. Set the R/G/B Bias data values on the menu screen to 127.
5-3. Set the R/G/B Drive data values on the menu screen to 32.
5-4. Adjust the lower SFR of FBT (T402) so that the second scale
from the right of stair-step starts to glow.
6. White Balance
Input signal: White raster
Measuring instrument: Pattern generator/PAL
* Perform aging before adjustment for at least 20 minutes.
* Perform all adjustment steps several times.
Set the TV to the "Normal I" mode when performing adjustment
steps 6-1 _ 6-9.
Bias Adjustment:
6-1. Supply white raster from the pattern generator.
6-2. Fix the bias value of the color, which is developed the most
on the screen to 127, and use the Vol +/- buttons on the re-
mote control to adjust the other two bias values so that the
picture is white.
Drive Adjustment:
6-3. Use the Vol +/- buttons on the remote control to set the
R Drive value to 63 so that the picture is reddish.
6-4. Lower the value until red disappears.
6-5. Use the Vol +/- buttons on the remote control to set the
G Drive value to 63 so that the picture is greenish.
6-6. Lower the value until green disappears.
6-7. Use the Vol +/- buttons on the remote control to set the
B Drive value to 63 so that the picture is bluish.
6-8. Lower the value until blue disappears.
6-9. Perform steps 6-1 _ 6-8 several times so that the picture is
seen more white.
Fig. 5-1
Second scale from right
2. ELECTRICAL ADJUSTMENT