Sharp XR-41XDM Service Manual - Page 10

XR-40X/XR-41X/XG-F260X XCRH-40AX PTER 2. ELECTRICAL ADJUSTMENTService Manual [1] ELECTRICAL ADJUSTMENT No. Adjusting point 1 EEPROM initialization 2 Model setting 3 Adjustment of CW index Adjusting conditions 1. Turn on the power (with the lamp on) and warm up the set for 15 minutes. (Process menu) 1. Select the following group and subject. Group: CONFIRM Subject: MODEL 1. Signal input: Send 256 STEP color bar. XGA series (XGA60HZ), 2. Select the following group and subject. Group: ADJUST CW/Auto KS Subject: CW-INDEX. Adjusting procedure •Make the following settings. Press S2551 to call the process mode and execute "SS2" on SS menu. 1. Set as below. XR-40X : 1 XR-41X : 4 XG-F260X : 3 1. The signal is input into computer 1. 2. Select the adjustment item and adjust the lamp gra- dation patterns of RGBW so that smooth patterns without noise appear. W R G B 4 R/G/B contrast adjustment (manual or automatic) 5 RGB white balance adjustment 6 sRGB white balance adjustment Check items No. Adjusting point 1 1 Adjustment of RGB brightness 1. Select the following group and subjects. Group : ADJUST AD/DLP Subject : R-CONT G-CONT B-CONT (Process GAMMA interlock) 2. Amplitude level 96% (0.67Vpp) the signal is input into computer 1. XGA series (XGA60HZ) 1. 50% gray pattern signal is input into computer 1. XGA series (XGA60HZ) 2. Select the following group and subjects. Group : ADJUST AD/DLP Subject : R-GAIN G-GAIN B-GAIN 1. 50% gray pattern signal is input into computer 1. XGA series (XGA60HZ) 2. Select the following group and subjects. Group : CONFIRM/DLP Subject : S-G-OS S-B-OS 1. Measure chromaticity of the 96% white wind pattern using CA100. 2. On the screen where bit dropouts occur, raise the values of R/G/B-Contrast. Adjust the values so that bright red, green, and blue bit dropouts appear on a black background; and amounts of change in x value of R and y values of G/B become 100/1000 or more. 3. If adjustment is performed manually watching the screen, make adjustment so that bright red, green, and blue bit dropouts appear on more than half of the screen. 1. Raise the values of two of R/G/B-GAIN (default: 100) so that the following chromaticity values are obtained using CL200. x value: 295 ± 5 y value: 310 ± 5 1. Adjust S-G-OS and S-B-OS so that the following chromaticity values are obtained using CL200. x value: 313 ± 5 y value: 329 ± 5 Adjusting conditions 1. Select the following group and subjects. Group : CONFIRM/AD Subject : R-BRIGHT G-BRIGHT B-BRIGHT (Process GAMMA interlock) Adjusting procedure 1. Check the fixed value. Fixed value : 127 2 - 1