28
VL-A110U/UC
VL-AH130U
6-3-3. Adjusting the VCR circuit
•
Test Points on the Video Circuit Board
a) POWER CIRCUIT ADJUSTMENT
PROCEDURE
6-3-3-1. Adjusting the power
circuit
Turn on power
1. Adjust to CAM 15V
û
2. Check P-CON 4.9V
û
û
3. Check P-CON 3.3V
û
4. Check P-CON 3.1V
û
5. Check DSP 2.5V
û
6. Check DSP 1.8V
7. Check LCD 13.2V
8. Check LCD 7V
û
9. Check LCD -15.2V
10. Check CAM -8V
û
û
Æ
Turn off power.
û
û
1. Adjustment to CAM 15V
Make an adjustment so that the digital voltmeter indicates 15V
±
0.05V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL905
Adjustment address
32h
Standard
15V
±
0.05V
Measuring instrument
Digital voltmeter
Measuring terminal
TL901
Adjustment address
Standard
4.9V
±
0.1V
3. Checking of P-CON 3.3V
Ascertain that the digital voltmeter indicates 3.3V
±
0.1V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL903
Adjustment address
Standard
3.3V
±
0.1V
4. Checking of P-CON 3.1V
Ascertain that the digital voltmeter indicates 3.1V
±
0.1V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL9718
Adjustment address
Standard
3.1V
±
0.1V
5. Checking of DSP 2.5V
Ascertain that the digital voltmeter indicates 2.5V
±
0.1V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL916
Adjustment address
Standard
2.5V
±
0.1V
2. Checking of P-CON 4.9V
Ascertain that the digital voltmeter indicates 4.9V
±
0.1V.
POWER CIRCUIT ADJUSTMENT METHOD
Æ
Input 7V
from DC Jack, and set the power switch to the camera side.
`
Don't fail to fix the back light unit before adjusting them.
6. Checking of DSP 1.8V
Ascertain that the digital voltmeter indicates 1.8V
±
0.1V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL910
Adjustment address
Standard
1.8V
±
0.1V
7. Checking of LCD 13.2V
Ascertain that the digital voltmeter indicates 13.2V
±
0.2V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL907
Adjustment address
Standard
13.2V
±
0.2V
8. Checking of LCD 7V
Ascertain that the digital voltmeter indicates 7V + 0.4/-0.5V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL904
Adjustment address
Standard
7V + 0.4/-0.5V
9. Checking of LCD -15.2V
Ascertain that the digital voltmeter indicates -15.2V
±
1V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL906
Adjustment address
Standard
-15.2V
±
1V
10.Checking of CAM -8V
Ascertain that the digital voltmeter indicates -8V
±
0.5V.
Measuring instrument
Digital voltmeter
Measuring terminal
TL909
Adjustment address
Standard
-8V
±
0.5V
Содержание VIEWCAM VL-A110U
Страница 43: ...43 VL A110U UC VL AH130U M E M O ...
Страница 64: ...83 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U VCR PWB Wiring Side SIDE A ...
Страница 66: ...85 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U VCR PWB Wiring Side SIDE B ...
Страница 68: ...87 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U CAMERA PWB Wiring Side SIDE A ...
Страница 70: ...89 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U CAMERA PWB Wiring Side SIDE B ...
Страница 72: ...91 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U HEAD AMP PWB Wiring Side SIDE A ...
Страница 73: ...92 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 VL A110U UC VL AH130U HEAD AMP PWB Wiring Side SIDE B ...