XTL-6100MK2 - Sony Car Audio Service Manual (repair manual). Page 8

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white level (1st step)

black level (8th step)

0 V

INPUT 1
VIDEO

color bar
generator

XT-993V

XVM-6100MK2

VIDEO output

(75 

Ω

)

MONITOR OUT

Use the following test equipment for alignment.
• Oscilloscope dual trace, 10 MHz band or above with delay mode

(use a 10 to 1 probe unless otherwise instructed.)

• PAL color bar generator
• DC power supply
• Digital voltmeter
• XT-993V (Hideaway unit)
• Frequency counter

Make the test equipment connections as shown below (unless
instructed otherwise) and perform the alignment.

Setting :
DIMMER selector (S701) : HIGH
BRIGHT dial (RV702)

: Max. (light)

VOL dial (RV301)

: Max.

Procedure :
1. Input the color bar (chroma off) signal from PAL color bar gen-

erator and display on the monitor screen.

2. Connect the digital voltmeter to CL66 on the monitor main

board.

3. Adjust RV401 (+5V) so that the digital voltmeter reads 5 ± 0.1 V

DC.

4. Connect the digital voltmeter to CL86 on the monitor main

board.

5. Adjust RV601 (+9V) so that the digital voltmeter reads 8.5 ± 0.1 V

DC.

Connection points : Monitor main board
Alignment points : Monitor main board

Procedure :
1. Input the color bar (chroma off) signal from PAL color bar gen-

erator and display on the monitor screen.

2. Connect the digital voltmeter to CL151 on the monitor main

board.

3. Adjust RV213 (OFFSET) so that the digital voltmeter reads 2.3

± 0.1 V DC.

4. Connect the oscilloscope to CL42 on the monitor main board.
5. Adjust RV212 (COM CUT) so that the lower black level is 6.2

± 0.05 V DC.

6. Adjust RV208 (COM DRIVE) so that the upper 100% white

level is 9.2 ± 0.05 V DC.

7. Repeat steps 5 & 6 until the items in the standards are satisfied.
8. Connect the oscilloscope to CL41 of the monitor main board.
9. Adjust RV207 (R DRIVE) so that the lower black level is 6.2 ±

0.05 V DC.

10. Adjust RV202 (R CUT) so that the upper 100% white level is

9.2 ± 0.05 V DC.

11. Repeat steps 9 & 10 until the items in the standards are satisfied.
12. Connect the oscilloscope to CL43 of the monitor main board.
13. Adjust RV209 (B DRIVE) so that the upper 100% white level

is 6.1 ± 0.05 V DC.

14. Adjust RV204 (B CUT) so that the upper 100% white level is

9.1 ± 0.05 V DC.

15. Repeat steps 13 & 14 until the items in the standards are satisfied.

Connection points : Monitor main board
Alignment points : Monitor main board