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White Balance Interference Correction Adjustment; Ntsc Composite Adjustment; Pal Composite Adjustment; Component Adjustment - Sony TRINITRON PVM-14L5 Service Manual

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2-17. SUB BRIGHT, SUB CONTRAST
Adjustment (33 K)
1. Input the 33 K monoscope signal to the COMPO-
NENT IN connector.
2. Put the unit into the service mode.
3. Select WHITE BALANCE.
4. Select [SUB-BRIGHT] .
5. Set as follows from the operation panel:
CONTRAST : 0 (MIN)
BRIGHT : 0 (center)
6. Adjust SUB-BRIGHT in the service mode so that the
20-tone gray scale will be as follows:
0 and 5 IRE 8 CUT-OFF
10 IRE 8 Slight glow
7. Set CONTRAST VR on the operation panel to 80 %.
8. Turn off the CONTRAST display.
9. Select SUB CONTRAST.
10. Input the window signal.
11. Adjust luminance to the standard value with SUB-
CONTRAST.
Standard value:
14 inch MODEL
SUB CONT
170 cd/m
2
12. Select UNDER SCAN. (16 : 9 UNDER SCAN)
13. Select SUB CONTRAST and adjust luminance to the
standard value that is specified in step 11, with SUB-
CONTRAST.
2-18. White Balance Interference
Correction Adjustment

2-18-1. NTSC Composite Adjustment

1. Input a 525 all-white (with burst) cut-off signal to
LINE A connector.
2. Select LINE A from the operation panel.
3. Adjust the all-white luminance so that the screen
luminance is less than 10 cd/m
possible to 3 cd/m
2
with the CONTRAST VR button
and BRIGHT VR button on the operation panel.
4. Set the MONO on the operation panel to ON and
measure the color temperature.
5. Set the MONO switch on the operation panel to OFF.
Select [ADJUST FINE] and adjust [PB BLACK] and
[PR BLACK] until the same color temperature as the
color temperature value measured in step 4 is obtained.
PVM-14L5/20L5/D14L5A/D20L5A
20 inch MODEL
150 cd/m
2
2
and as close as

2-18-2. PAL Composite Adjustment

1. Input a 625 all-white (with burst) cut-off signal to
LINE A connector.
2. Select LINE A from the operation panel.
3. Adjust the all-white luminance so that the screen
luminance is less than 10 cd/m
2
possible to 3 cd/m
with the CONTRAST VR button
and BRIGHT VR button on the operation panel.
4. Set the MONO on the operation panel to ON and
measure the color temperature.
5. Set the MONO switch on the operation panel to OFF.
Select [ADJUST FINE] and adjust [PB BLACK] and
[PR BLACK] until the same color temperature as the
color temperature value measured in step 4 is obtained.

2-18-3. COMPONENT Adjustment

1. Input a 525 all-white (with burst) cut-off signal to
COMPONENT connector.
2. Select COMPONENT from the operation panel.
3. Adjust the all-white luminance so that the screen
luminance is less than 10 cd/m
2
possible to 3 cd/m
with the CONTRAST VR button
and BRIGHT VR button on the operation panel.
4. Set the MONO on the operation panel to ON and
measure the color temperature.
5. Set the MONO switch on the operation panel to OFF.
Select [ADJUST FINE] and adjust [PB BLACK] and
[PR BLACK] until the same color temperature as the
color temperature value measured in step 4 is obtained.

2-18-4. SDI Adjustment

1. Install the BKM-120D into the option slot.
2. Select OPTION from the operation panel.
3. Input an SDI all-white cut-off signal to BKM-120D.
4. Adjust the all-white luminance so that the screen
luminance is less than 10 cd/m
2
possible to 3 cd/m
with the signal generator.
5. Set the MONO on the operation panel to ON and
measure the color temperature.
6. Set the MONO switch on the operation panel to OFF.
Select [ADJUST FINE] and adjust [PB BLACK] and
[PR BLACK] until the same color temperature as the
color temperature value measured in step 5 is obtained.
2
and as close as
2
and as close as
2
and as close as
2-25

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