Apple studio display 17 crt 16 vis adc User Manual

5USB output voltage check1. Equipment and checking procedure is the same as detailed in the service manual.1V check and adjustment1. Equipment and adjustment procedure is the same as detailed in the service manual.2. Condition:(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =1024x768@99Hz](b) Pattern is Raster – select [Quantum Data>801 Patterns>Raster].Raster centering1. Equipment is the same as detailed in the service manual.2. Condition:(a) Timing mode is 1024x768@99Hz –...

6Beam Landing check and adjustment1. Equipment and adjustment procedure is the same as detailed in the service manual.2. Condition:(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =1024x768@99Hz](b) Pattern is Green Page – select [Quantum Data>801 Patterns>Green page].Note: Prior to any alignment of the beam landing the UUT must be warm-up in a fullwhite page at 15fl.Geometry check and adjustment1. Equipment and adjustment procedure is the same as detailed in the service...

73. Cutoff adjustment(a) Set the pattern to “GrayScale 16”.(b) Check that the cutoff is at 2nd
 bar just slightly visible. If not then start the cutoffadjustment. Note: For better judgement of the 2nd
 bar use the reverse setting byselecting [Quantum Data>801 Controls>Reverse].(c) Adjustment - In the color page, click on “Preset Color”.(d) Use the scroll bar “RGB Cutoff” to adjust until the second gray bar just disappear orbarely visible. Note: The “RGB Cutoff” control is a pseudo cutoff scroll bar...

8(i) With the CRT biasing determined, do not touch the cutoff for that color.(j) Use only two of the cutoffs that are indicated by the CRT color biasing template forthe adjustment until the low color is within specs. If there is difficulty in getting thelow color within specifications then move to high brightness color adjustment.(k) Specifications for the white balance adjustment is at 9300 - x = 283±5, y = 298±5, Y=33±1(l) Set the contrast to maximum at 0x60.(m) For high light color adjustment use R...

94. VPT calibration(a) Select [Rework>VPT Tests>Download Constants].(b) Check that CA100 is initialized and the remote light is ON.(c) Select [Rework>VPT Tests>Perform VPT Characterization].(d) When the calibration pass, the message shown is: “Color and VPT tests passed!”.EDID Data Check1. Equipment: Mac with USB.2. Condition:(a) Ensure that the UUT has completed VPT check or calibration process.3. Select [Rework>EDID>Download Default Constants].4. Select [Rework>EDID>Copy Magic Cookie].5. Select...

106. Measure the brightness for the center box again – say Y2 fl7. Pass the UUT if the Y2/Y1 brightness ratio is at least 1.4 times.8. Turn off the bright window mode.Note1: The “Vert Blnk DC” scroll bar should be at 0x8C and the “Delta DC Level” scrollbar should be at 0x03.Note2: If the bright window mode did not work, check that the length of the video cableis not too long to cause any double image or power ON/OFF the DC power brick and tryagain.Degauss Check1. Equipment: Hand degausser.2....

11APPENDIX ADescription of buttons functions in [Geometry] page1. Preset & read – Preset default (max) Contrast setting and read the parameters values.2. UUT ON/OFF – Turn ON or OFF the unit. If button shows “UUT OFF” it means thathitting the button “UUT OFF” will turn OFF the unit. Vice versa for “UUT ON”.Note: UUT means “Unit-Under-Test”.3. Load defaults – Load the factory aligned values.4. Read ALL – Read all the alignment parameters values in the current page.5. Degauss – Activate the built-in...

12Description of menu functionsPROGRAM1. “Program>Quit” – To quit the program.Rework/ Get UUT Info1. “Rework > Get UUT Info > ID number”- shows the production process ID number.2. “Rework > Get UUT Info > Manufacture date”- shows the unit’s production date.This is created in production during the VPT calibration process.3. “Rework > Get UUT Info > Service date”- shows the unit’s service date. This iscreated whenever there is any save to the UUT’s EEPROM.Rework/ VPT Tests1. “Rework > VPT Tests > Download...

13Rework/ Factory Data1. “Rework > Factory Data > Upload All”- Uploads all the whole UUT EEPROM dataand stores the data in the factory file format. Can be used to backup EEPROM dataprior to changing of video board to minimize re-alignment2. “Rework > Factory Data > Download All”- Downloads all the data stored in a validfactory file format and writes the data into the UUT EEPROM. Can be used duringthe repair process to transfer the UUT data into a new video board.3. “Rework > Factory Data > Convert to...

14APPENDIX BWiring diagram for CA100 and 801GF to Mac serial port8763452123547RxD+RxD-TxD-TxDRxDGNDRTSCTSShield GNDMale DIN 8CA100 DB258763452123875RxD+RxD-TxD-TxDRxDGNDRTSCTSShield GNDMale DIN 8801 DB9