Mitsubishi Electric SD206U Service Manual page 12

ADC ADJUSTMENT
Outline
ADC means "analog/digital converter."
By adjusting ADC, the best input signal level is obtained. To maintain the best picture quality, make sure to adjust ADC after re-
placing the following parts for repair.
- MAIN PCB ASSY
Adjustment procedure
RGB adjustment
1. Connect the signal generator to the projector.
2. Input the adjustment signal (white / black, No. 29).
3. Turn on the power of the projector.
4. Hold down the [▲], [▼], [ ], [ ], and [ENTER] buttons on the projector togeth-
er to display the picture shown on the right.
5. Press the [ ] button to adjust RGB.
YUV adjustment
6. Change the adjustment signal to "SMPTE (white, No.30)."
7. Press the [ ] button to adjust YUV.
C/W DELAY ADJUSTMENT
The pure red is displayed with a tinge of pink or orange, adjust the timing of the C/W segment (R, G, B, and W) and that of the
DMD driving signal.
• Carry out this adjustment only when the optical unit or color wheel ASSY is replaced.
• Perform at least 4-hour aging after the completion of this adjustment.
Necessary fi les
The following fi le is necessary to run the program.
• [SVGA_WRGB_64scale] : fi le (in "DLP Composer (TM) Lite" folder)
(for SD206U)
• [XGA_WRGB_64scale] : fi le (in "DLP Composer (TM) Lite" folder)
(for XD206U/XD206U-G)
Adjustment procedure
1. Connect the projector and the PC using the VGA cable.
2. Connect the power cord to the projector.
Make sure that the POWER indicator illuminates red.
3. Start the PC and copy the "DLP Composer (TM) Lite" folder onto the desktop.
4. Double-click "SVGA_WRGB_64scale" or "XGA_WRGB_64scale" in the "DLP
Composer (TM) Lite" folder to display the adjustment signal.
5. Turn on the power of the projector.
6. Display the IMAGE menu.
7. Set the following items for the picture quality.
CONTRAST . . . . . . . . . . . . . . .0
BRIGHTNESS . . . . . . . . . . . . .0
COLOR TEMP . . . .STANDARD
8. Hold down the [▲], [▼], [ ], [ ], and [ENTER] buttons on the projector together to display the picture shown on the right.
9. Press the [▲] or [▼] button to select "CW index Delay".
10. Press the [ ] or [ ] button to adjust the tones of the signal are displayed in correct colors.
- 2 -
Red 68 ErrorCode
Green 67
Blue 68
FAN1 60 Shipment Reset
FAN2 62
FAN3 73
Test Pattern
T1 Read
T2 Read
BurnIn Cycle
CW index Delay
Lamp Total Hours
Lamp Current Hours
(Firmware version)
Red 68 ErrorCode
Green 67
Blue 68
FAN1 60 Shipment Reset
FAN2 62
FAN3 73
Test Pattern
T1 Read
T2 Read
BurnIn Cycle
CW index Delay
Lamp Total Hours
Lamp Current Hours
(Firmware version)
0
ON 8 HR
0
0
0
72
0
0
0
ON 8 HR
0
0
0
72
0
0