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 – select [Quantum Data>801 Formats>Cab 3 =1024x768@99Hz](b) Pattern is Green Frame – select [Quantum Data>801 Patterns>Green Frame].3. In the color and convergence page, set the G cutoff to maximum at 0xFF to see theedge of the raster.4. Adjustment procedure is the same as detailed in the service manual.Regulation check and adjustment1. Equipment and checking 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 “Regulate” – select [Quantum Data>801 Patterns>Regulate].3. Adjustment – use the “H EHT Comp” and “V EHT Comp” scroll bars in the colorand convergence page to adjust the regulation.CG 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 X-Hatch White – select [Quantum Data>801 Patterns>X-Hatch White]. Usethe RGB buttons on the 801GF for manual control over the color displayed.(c) Ensure that the H/V static controls are at the default position 0x7F.Focus check and adjustment1. Equipment and adjustment procedure is the same as detailed in the service manual.2. Condition:(a) Timing mode is 1280x1024@75Hz – select [Quantum Data>801 Formats>Cab 3 =1280x1024@75Hz](b) Pattern is Focus – select [Quantum Data>801 Patterns>Focus]+ [Quantum Data>801Controls>Reverse]. After adjustment do [Quantum Data>801 Controls>Reverse]. 
						

							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 manual.2. Condition:(a) Timing mode is all the seven timing formats from Cab_1 to Cab_7.(b) Pattern is Green Frame – select [Quantum Data>801 Patterns>Green Frame].3. If the geometry data was downloaded from the factory file or the original videoboard, check that the geometry for the 7 timing formats is within specifications. If notthen start the geometry adjustment.4. Adjustment – start with prime mode at timing Cab_3 format. Note: Modeindependent parameters are in black in the Geometry page. Blue indicates modedependent parameters – these must be aligned and checked at the different timingformats from Cab_1 to Cab_7. Do a “Read All” whenever there is a change of timingformat, so as to get the actual parameter settings.5. When geometry is within specifications in the Cab_3 format, click “Save user” thenclick “Do Prediction”. Prediction function is used to cut down the adjustment time forthe rest of the timing formats. It is OK to skip the prediction function and proceed tothe adjustment for next timing format, but just remember to click “Save user” beforechanging the timing format.6. Check the geometry from timing formats Cab_1 to Cab_7 and touch-up if necessary.For formats that are within specifications click on “Save user” for each mode beforechanging the timing format.7. When all the 7 timing formats are checked to be within specifications, click on “Savedefaults” to save the settings into the factory EEPROM space.White balance check and adjustment1. Equipment: calibrated CA100.2. Condition:(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =1024x768@99Hz](b) Pattern for cutoff adjustment is GrayScale 16 – select [Quantum Data>801Patterns>X-GrayScale 16].(c) Pattern for white balance adjustment is VPT Page – select [Quantum Data>801Patterns>VPT Page].(d) Make sure the contrast is set at maximum 0x60. 
						

							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 controlto ease the adjustment of R, G, B cutoff controls together – actual steps change willbe reflected in the individual R, G, B cutoff scroll bars.4. White balance check(a) Set the pattern to “VPT Page”.(b) Place and hold the CA100 probe in the center of the white page.(c) If the white balance data was downloaded from the factory file or the original videoboard, a check must be performed to ensure that the white balance is within highbrightness specifications (contrast at max 0x60) of x = 283±10, y = 298±10, Y=33±3, and low brightness specifications (adjust contrast to achieve Y= 2.5±1 FL) of x= 283±10, y = 298±10.(d) If white balance is not within specifications then perform the manual or auto whitebalance procedures.5. Manual white balance alignment(e) Set the pattern to “VPT Page”.(f) Place and hold the CA100 probe in the center of the white page.(g) Adjust the contrast to achieve about 2.5±1fl.(h) Measure the low light color to determine whether the CRT is red, green or blue bias.Use the biasing template shown below to judge the biasing. CIE specifications for thisproduct is at x = 283, y = 298.Targetx = redy = greenx = redy = bluex = bluey = greenx - target > y - target thenx = blue, y = green.y - target > x - target theny = blue,  x = red. 
						

							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 Drive for CIE x adjustments, G Drive for CIE yadjustments. For brightness adjustment, use the R, G, B Drives and adjust themtogether.(n) Adjust the contrast to achieve about 2.5±1fl.(o) Check and adjust the low light color until it is within the specification.(p) Repeat steps (j) to (p) until the high and low color is within specifications.(q) To save the color settings click on the “Save” button.5. Auto white balance alignment(a) Set the pattern to “VPT Page”.(b) Initialize the CA100 by selecting [Minolta>Setup>Initialize CA100].(c) Check that the remote light on the CA100 is lighted.(d) To zero calibrate the probe select [Minolta>Setup>Zero Calibrate Probe].(e) Place and hold the CA100 probe in the center of the white page.(f) Select [Rework>White Balance>X-Align White Balance].(g) When the white balance adjustment pass, the message shown is: “ Passed whitebalance adjustment”.VPT check and calibration1. Equipment: calibrated CA100.2. Condition:(a) Timing mode is 1024x768@99Hz – select [Quantum Data>801 Formats>Cab 3 =1024x768@99Hz].(b) Pattern is “VPT Page” – select [Quantum Data>801 Patterns>VPT Page].(c) Make sure the contrast is set at maximum 0x60.3. VPT calibration check(a) If the VPT data is downloaded from the factory file or original video board thenSelect [Rework>VPT Tests>Check Calibration].(b) Select memory channel 5 of CA100 to measure 9300.(c) Take the reading of the CA100 and compare with the reading display from thesoftware.(d) Pass the VPT calibration if the difference between the measured and calculated x, yreadings are within ± 5 units (e.g. if CA100 measured x = 285 and y  = 300 and thecalculated x = 283, y  = 298 then the VPT calibration check is a pass). If it failed thenperformed the VPT calibration process described next. 
						

							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 [Rework>VPT Tests>Get Magic Cookie]. Note down the magic cookienumber.6. Select [Rework>EDID>Get EDID ID]. Ensure that the EDID ID number is the sameas the magic cookie number.Theater Mode Check1. Equipment: Mac with USB, CA100, Quantum Data 801GF.2. Condition:(a) Completed white balance adjustment.3. Select [Quantum Data>801 Patterns>5 Boxes]. Note: Make sure the background isblack, if not just choose reverse option to set the background black.4. Measure the brightness for the center box – say Y1 fl5. In the color page click on the button “Bright Win ON”. Button should change to“Bright Win OFF”, which means the next click on the button will turn BrightWindow mode OFF.6. In the color page click on the button “Full Screen ON”. Button should change to “FullScreen OFF”, which means the next click on the button will turn Full Screen modeOFF.7. Measure the brightness for the center box again – say Y2 fl8. Pass the UUT if the Y2/Y1 brightness ratio is at least 1.4 times.9. Click on the buttons to turn off the full screen mode first then the bright windowmode.Note: The “Vert Blnk DC” scroll bar should be at 0x8C and the “Delta DC Level” scrollbar should be at 0x03.Bright Window Check1. Equipment: Mac with USB, CA100, Quantum Data 801GF.2. Condition: Completed white balance adjustment(a) Completed white balance adjustment.3. Select [Quantum Data>801 Patterns>Bright Window]. Note: Make sure thebackground is black, if not just choose reverse option to set the background black.4. Measure the brightness for the center box – say Y1 fl5. In the color page click on the button “Bright Win ON”. 
						

							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. Condition:(a) Timing format can be any of Cab_1 to Cab_7.(b) Pattern is “Red Page” – select [Quantum Data>801 Patterns>Red Page].3. Magnetize the UUT using the hand degausser by press/ release shortly to magnetizethe UUT at about 10cm away in the center of the screen. Screen should have some R,G, B color patches.4. Click on the “Degauss” button. The UUT internal degauss should be activated and thescreen should be just red without any color patches.5. If the color patches remain then the degauss function is not working.Turning OFF the UUTWhen the UUT passes all the adjustments, click on the button “UUT OFF” and the UUTwill just shutdown.  Important note: Must click on the button “UUT OFF” to powerOFF the UUT after adjustment. Failure to click “UUT OFF” will result in higher powerconsumption in sleep mode and abnormal power ON operation (i.e. degauss activatedbefore powering ON the Mac) when connected to a Mac CPU. 
						

							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 degauss function.6. Save user – Save the current page’s parameters values into the user EEPROM.7. Timing – Read what is the current vertical timing frequency  of cab1, cab2,….8. Save defaults – Save the current page’s parameters values into the factory EEPROM.9. Do Prediction – Predict the other geometry modes parameters based on the alignmentdata stored in the Cab_3 timing (1024x768@99Hz prime mode) user EEPROM.Predicted values for the other timing mode parameters will be stored in the userEEPROM.10. Degauss State – Check on the power ON degauss state – i.e. whether power ONdegauss is enabled. Must be enabled.11. File -> EE  – Downloads the file contents (in simple text file format of [address data])to the EEPROM.12. EE -> file – Uploads the EEPROM data and stores the data in simple text file format.Use the check boxes [IVAD Data] or [VPT Data] to select the kind of upload data.Description of buttons functions in [Color/Convergence] pageNote: Some buttons functions are the same as previous.1. Save – Save all the current parameters values into user and factory EEPROM.2. Preset Color – Set the R, G, B drives and cutoffs prior to cutoff and color alignment.3. Get HiIks – Read the R, G, B high beam currents.4. Get LoIks – Read the R, G, B low beam currents.5. Bright Win ON/OFF – Activate/de-activate the bright window feature.6. Full Screen ON/OFF – Activate/de-activate the theater mode feature. Must be usedwith bright window mode ON. 
						

							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 Constants”- Downloads the VPT constants.2. “Rework > VPT Tests > Check VPT calibration”- Check on the correctness of theVPT calibration using calculation based on the RGB characterization data. To be usedwith a white pattern setting.3. “Rework > VPT Tests > Get Checksum Data”- To check if the RGB characterizationdata in the EEPROM is correct4. “Rework > VPT Tests > Get Max RGB Ik”- Show what are the max RGB beamcurrents stored in the VPT EEPROM.5. “Rework > VPT Tests > Get Magic cookie”- Show what is the unit’s unique ID. Thisunique ID must matched the unique ID stored in the EDID data.6. “Rework > VPT Tests > Get Coulomb Counter”- Show what is the amount of agingthe CRT has gone through. This is updated at about every 35mins interval.7. “Rework > VPT Tests > Zero Coulomb Counter”- Reset the aging counters. Usedonly when set is serviced and it is also automatically zeroed during the VPTcalibration process.8. “Rework > VPT Tests > Perform VPT characterization”- Perform VPT calibrationusing a serially controlled CA100.Rework/ White Balance1. “Rework > White Balance > Align White Balance”- Perform the white balanceadjustment using a serially controlled CA100.Rework/ EDID1. “Rework > EDID> Download Default Constants”- Downloads the default EDIDconstants.2. “Rework > EDID> Copy Magic Cookie”- Copy the magic cookie number from VPTEEPROM to EDID data EEPROM.3. “Rework > EDID> Get EDID ID”- Shows the magic cookie number that is stored inthe EDID EEPROM. Must be the same as the number shown in the “Get MagicCookie”.4. “Rework > EDID> Upload EDID To File”- Uploads the EDID data and stores thedata in simple text file format. 
						

							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 Excel format”- Converts a UUT factory backupfile to a excel readable format.4. “Rework > Factory Data > Convert to Excel format”- Converts a UUT factory backupfile to a simple text readable format.Quantum Data1. “Quantum Data > 801 Formats >”- For serial control of the Quantum 801timingmodes/ formats.2. “Quantum Data > 801 Patterns >”- For serial control of the Quantum 801 patterns.3. “Quantum Data > 801 Controls >”- For serial control of the Quantum 801 controls.Minolta1. “Minolta> Setup >”- For serial control of the CA100. Initialization and zero probeshould be performed prior to the software white balance adjustment functions andVPT calibration functions.2. “Minolta > Channel >”- For serial control of the CA100 channel selection. 
						

							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