(2) Adjustment Procedures
* PAL Adjustment
Step
Operations Process
Connection
Test Point/
P.W.Board
Coordinates
Adjustment
1
Confirm AUX terminal OPEN.
Figure 5 to 8
2
PWM Frequency Adjustment
Figure 5
TP813
(4-F)
TP7050
(5-C)
Adjust by VR803 so that it may be set to 119 to
120KHz.
3
VSS Voltage Adjustment
Figure 6
TP7053
(5-C)
TP7050
(5-C)
Adjust by VR802 so that it may be set to -16V
+0.1, -0.1.
4
VGH Voltage Adjustment
Figure 7
TP7002
(5-C)
TP7050
(5-C)
Adjust by VR801 so that it may be set to +13V
+0.1, -0.1.
5
HSYNC Frequency
Adjustment
Figure 8
TP7046
(5-C)
TP7050
(5-C)
Adjust by VR7002 so that it may be set to
range which does not exceed 15.64kHz from
15.63KHz.
6
HSYNC Lo-period Adjustment
Figure 8
TP7046
(5-C)
TP7050
(5-C)
Adjust by VR7001 so that it may be set to
3.12uS+0.05, -0.05.
7
Input 10STEP Signal from
AUX.
Figure 9 to 12
8
VOM Amplitude Adjustment
Figure 9
TP7056
(5-C)
TP7050
(5-C)
Adjust to DC+5.9 to -1.9 amplitude by VR701
and VR709. (7.8V+0.1, -0.1)
[NOTE :
VR701 : DC Center Voltage Adjustment
VR709 : Amplitude Adjustment]
9
GREEN Waveform-1
Adjustment
Figure 10
TP7015
(5-C)
TP7050
(5-C)
Adjust from black to the 3rd. waveform by
VR702 so that it may be set to AC1.9V.
(Refer to A of Figure 13)
10
GREEN Waveform-2
Adjustment
Figure 10
TP7015
(5-C)
TP7050
(5-C)
Adjust between white and from white to the 6th.
waveform by VR703 so that it may be set to
AC3.0V
(Refer to B of Figure 13)
11
GREEN Waveform-3
Adjustment
Figure 10
TP7015
(5-C)
TP7050
(5-C)
Adjust white waveform by VR703 so that it may
be set to AC3.9 to 4.0V.
(Refer to C of Figure 13)
12
RED Waveform-1 Adjustment
Figure 11
TP7014
(5-C)
TP7050
(5-C)
Adjust by VR705 and VR707 so that TP7014
waveform may become the same as TP7015
waveform.
[NOTE :
VR705 : adjust from black to 8th. gradation.
VR707 : adjust from 8th. gradation to white.]
13
BLUE Waveform-1 Adjustment
Figure 12
TP7016
(5-C)
TP7050
(5-C)
Adjust by VR706 and VR708 so that TP7016
waveform may become the same as TP7015
waveform.
[NOTE :
VR706 : adjust from black to 8th. gradation.
VR708 : adjust from 8th. gradation to white.]
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