Norcent LT2722, Service Manual

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Norcent LT2722
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B. Adjust 6500 color-temperature:
1. Switch the chroma-7120 to
RGB- mode (with press “MODE” button)
2. Switch the MEM. Channel to Channel 02 (with up or down arrow on Chroma-7120)
3. The LCD-indicator on chroma-7120 will show x = 313, y=329, Y>380.
4. Change source input to PC.
5. Select AL and press “right” arrow to do the auto-level.
6. Adjust the GG up to G value at chroma-7120 is 100.
7. Adjust the BG and RG till the value of R and B value on Chroma-7120 are 100±5.
8. Repeat the item 4 and 5 to make the R, G, B value are the same.
9. Select cursor to “S6” and press “right” arrow to save the value.
C. Adjust Video color-temperature:
1. Switch the chroma-7120 to RGB-mode (with press “MODE” button)
2. Switch the MEM. Channel to Channel 03 (with up or down arrow on Chroma-7120)
3. The LCD-indicator on chroma-7120 will show x = 283, y=297, Y>450.
4. Change source input to AV1.
5. Adjust the GG up to G value at chroma-7120 not going up; set the G value is max.
6. Adjust the BG and RG till the value of R and B value on Chroma-7120 same as G value.
7. Repeat the item 4 and 5 to make the R, G, B value the same.
8. Select cursor to “ST” and press “right” arrow to save the value.
Turn the POWER-button off to on to quit from factory mode.
Remark: 1. Auto Level of PC should be adjusted with TIMG 127, PATN 42 or 16 GRAYS screen.
2. It should be under white picture while adjusting the color temperature of all display modes.