-46-
2-6. OSD V 60 NTSC OSD vertical position adjustment
[Setting TV/measuring equipment]
1. Use the pattern generator and input the crosshatch signal using a pattern generator.
2. Adjust each distance of A (from to top end on screen) and B (from to bottom end on
screen) so that they are equal. (Fig. 2-10)
5-3. Tuner GAIN Adjustment
3-1. RF AGC RF AGC adjustment
[Setting TV/measuring equipment]
1. Connect the digital voltage meter to the test points.
2. Input the specified input signal to RF ANT to receive 471.25 MHz.
3. Measure the voltage value of the test points.
If the voltage value is 3.8 V or less, use the [/-] key of the jig remote control
and adjust for 3.8 V or more (approx. 4.0 V).
4. Use the [/-] key of the jig remote control and increase the value. The
adjustment ends when the voltage value becomes 0.2 V less than that of the initial
measurement.
[Setting TV/measuring equipment] RF-AGC simplified adjustment
1. Connect the digital voltage meter to the test points.
2. Measure the electric field strength of the pattern generator owned by you.
3. Use the [/-] key of the jig remote control and adjust so that each voltage
value is close to the corresponding electric field strengths referring to Fig. 3-1.
5-4. Color and Brightness Adjustments
4-1. SCREEN Screen adjustment
[Setting TV/measuring equipment] RF-AGC simplified adjustment
1. Use the jig remote control and set to the adjustment mode screen.
2. Set the value of MENU3-2 BRIGHT to 32 H.
3. Press the [SLEEP] key of the jig remote control once to enter the AGING mode.
4. Press the [10] key of the jig remote control once and show the SCREEN adjustment
screen. (Fig. 4-1)
5. Adjust the lower SFR of FBT until each value satisfies the specifications.
6. Set the value of MENU3-2 BRIGHT to 20 H.
Note : Upon completion of adjustment, be sure to adjust
BRIGHT (MENU3-2)
.
Fig.2-10
A
B
NTSC cross hatch
65
2.50V
dB V
µ
70
2.20V
dB V
µ
dB V
75
µ
1.90
V
80
1.75V
dB V
µ
Fig.3-1
Electric field
strength
Voltage value
WBC
04H
HBC
02H
Fig.4-1
PAL CONVERGENCE
MENU2 6
−
NTSC crosshatch
VIDEO
ADJUSTMENT MENU No.
SPEC
MODE
INPUT SIGNAL
A = B
MENU4 2
−
PAL color bar (Full-field)
Channel : 471.25 MHz
ADJUSTMENT MENU No.
TEST POINTS
SPEC
MODE
INPUT SIGNAL
Input level : 57± 1.0 dBµV
TU101 1pin/C102 + side
3.4± 0.4 VDC
TUNER
MENU4 2
−
PAL color bar (Full-field)
TU101 1pin/C102 + side
ADJUSTMENT MENU No.
TEST POINTS
SPEC
INPUT SIGNAL
Channel : 471.25 MHz
1.75 to 2.50 VDC
MENU3 2
−
PAL CONVERGENCE
ADJUSTMENT MENU No.
ADJUSTMENT LOCATION
SPEC
MODE
INPUT SIGNAL
T601 (Lower SFR of FBT)
WBC : 04H
HBC : 02H
VIDEO
ELECTRICAL ADJUSTMENT-11/13
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