•••••••••••••••••••••••••••• READ ME FIRST •••••••••••••••••••••••••••••
Summary
This file contains important information about this release of the Display Service Utility v4.2.1. This application replaces the MacTest Pro Display Patterns and Display Settings Restore Utility. The Display Service Utility presents much of the same functionality of these former test modules, but it puts them both into one application that has a new and easier-to-use interface. The information in this READ ME FIRST file is effective as of January, 1998.
•••••••••• Display Service Utility ••••••••••
Use the Display Service Utility to
• Display video test patterns
• Create and write display settings on multiscan displays, and
• Adjust the geometry of specified displays.
The utility runs on any Macintosh under System 7.0 or greater. The utility will support all Apple displays.
Display Patterns
The Display Service Utility generates display test patterns. You can use these patterns for visual testing and alignment of one or more monitors attached to the Macintosh computer you are testing. Select the Standard Patterns or choose the monitor type you wish to test from the pop-up Pattern Selections menu. To display a pattern, click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
•••••••••• Multiple Scan 720/1705 ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Note: "Apple MultiScan 1705" menu has been changed to "Multiple Scan 720/1705" to include support for the Apple Multiple Scan 720 display.
•••••••••• PowerPC 5200/5300/5400/5500 ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Geometry Adjustments
The "Adjust Geometry" function will not work properly if the CloseView Control Panel is loaded on the PowerPC 5200/5300/5400/5500 . Use Extensions Manager to prevent CloseView from loading, or restart the PowerPC with extensions off. (Note that simply turning off CloseView is not sufficient, because the control panel will still be loaded.) Virtual memory must be turned off prior to powering up the computer. Failure to do so will result in a program crash when exiting the geometry settings portion of the program. The Control Strip should not be opened once you are in the application.
Geometry adjustment requires that the monitor adjustment cable (Apple part number 922-1513) be connected between the analog board and the serial port on the Macintosh.
Clicking the "Adjust Geometry" button begins the five screen geometry adjustment sequence, with each screen representing a different screen resolution. Each screen contains adjustment scroll bars, a Save button, and a Cancel button. Screen resolution is indicated at the top of the screen. The scroll bars adjust the display for the indicated screen resolution. Clicking the "Save" button saves the adjustments performed for that screen resolution. Clicking the "Cancel" button will ignore all adjustments made for that screen. The five screens must be adjusted correctly so that the display will operate properly when the customer switches to a different screen resolution.
Note: It now supports 1024x768, 60Hz geometry adjustment for Power Macintosh 5500.
**Warning**
Internal modems interfere with the operation of the Display Service Utility. Remove internal modem cards (if present) before doing adjustments and, be sure to disconnect the monitor adjustment cable before restarting a machine which has an internal modem.
•••••••••• AppleVision 1710/1710AV ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Geometry Adjustments
Selecting the "Adjust Geometry" button will allow you to use scroll bars to adjust various parameters. For the most part, these adjustments are also available in the AudioVision Setup software. The only exception is the high voltage control. The high voltage control should be adjusted in conjunction with the Apple approved high voltage probe and set to 26.0 KV. This adjustment should be made whenever the main deflection board is replaced.
Note: The Save button alone does not save the Rotation adjustment settings. To save the Rotation settings, click on the Save button, shut down the computer and then power it on again.
Note: Adjustments on various parameters are saved both as user and as "Factory Default" settings.
Note: You must install the jumper connector (4-pin connector, only 2 pins are used) on the CRT/video board in order for the High Voltage Control adjustment to function. The connector is located on the top right side of the CRT/video board as viewed from the rear of the display. (The jumper connector is part of the Extension Cable Kit, P/N 076-0529.)
**Warning**
Always disconnect power before beginning to install the jumper connector.
Parameter Setting Restoration
Parmeter Setting Restoration is required to do video board replacement. For instructions, please refer to Service Source CD: AppleVision 1710/1710AV:Troubleshooting:"Downloading Setup Parameters and Replacing the CRT/Video Board."
•••••••••• AppleVision 750/750AV or ColorSync 17" ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Geometry Adjustments
Selecting the "Adjust Geometry" button will allow you to use scroll bars to adjust various parameters. For the most part, these adjustments are also available in the AudioVision Setup software. The only exception is the high voltage control. The high voltage control should be adjusted in conjunction with the Apple approved high voltage probe and set to 26.0 KV. This adjustment should be made whenever the main deflection board is replaced.
Note: The Save button alone does not save the Rotation adjustment settings. To save the Rotation settings, click on the Save button, shut down the computer and then power it on again.
Note: Adjustments on various parameters are saved both as user and as "Factory Default" settings.
Note: You must install the jumper connector (4-pin connector, only 2 pins are used) on the CRT/video board in order for the High Voltage Control adjustment to function. The connector is located on the top right side of the CRT/video board as viewed from the rear of the display. (The jumper connector is part of the Extension Cable Kit, P/N 076-0529.)
**Warning**
Always disconnect power before beginning to install the jumper connector.
Parameter Setting Restoration
Parmeter Setting Restoration is required to do video board replacement. For instructions, please refer to Service Source CD: AppleVision 750/750AV:Troubleshooting:"Downloading Setup Parameters and Replacing the CRT/Video Board."
•••••••••• Apple Multiple Scan 17 & 20 Display ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Parameter Setting Restoration
Before you replace the microprocessor controller board in either the Apple Multiple Scan 17 Display, or the Apple Multiple Scan 20 Display, use this utility to create a file containing the digital display settings stored in the old EEPROM, and then transfer the display settings from the saved file to the EEPROM on the new controller board.
**Warning**
Always disconnect power before beginning to repair or replace components such as the controller board in a display.
Note: After the new controller is installed, the new EEPROM will have default settings that should allow the utility to send data to the display. Although the display may not be optimal, once the settings from the old EEPROM are transferred to the new EEPROM, the display should be correctly restored.
1) Attach the serial (mini-DIN8, Apple service p/n 590-0552) cable between the printer or modem port of the computer and the serial port on the back of the display. There may be a small plastic cover on the serial port at the back of the monitor.
Note: If you use the printer port, AppleTalk must be off.
2) Launch the Display Service Utility.
3) Select the Apple MultiScan 17 & 20 in the Standard Patterns menu.
4) Click the Create File button under the Parameter Setting Restoration heading. This reads the current parameters and creates a file called "Parameters Settings MS". Do not change the name or move this file from the level at which the Display Service Utility resides.
Note: The display raster will turn black for a few seconds, then return to normal.
5) Quit the Display Service Utility and shut down the computer before continuing the repair.
6) Complete the repair on the display from which you’ve saved EEPROM settings.
7) Connect the serial cable from the computer to the monitor.
8) Turn on the computer and launch the Display Service Utility.
9) Click the Write File button. The utility displays the message “Successfully wrote the data to the display.” The Utility also deletes the data file to prevent you from inadvertently writing the data to some other display.
**Caution**
Do not delete the file created by this utility until you’ve successfully written the saved data to the EEPROM on the new controller board. Otherwise, you will not be able to complete the repair and you will need to return the entire display to Apple for whole-unit exchange. Also, make sure you only write the file back to the same display from which the EEPROM data was saved. Since every display is unique, writing the data to any other display will cause problems.
**Warning**
Always disconnect power before beginning to repair or replace components such as the controller board in a display.
•••••••••• AppleVision 850/850AV or ColorSync 20" ••••••••••
Display Patterns
Click on the icon of the desired pattern. Click the mouse or press any key to return to the pattern selection screen.
Geometry Adjustments
Selecting the "Adjust Geometry" button will allow you to use scroll bars to adjust various parameters. For the most part, these adjustments are also available in the AudioVision Setup software. The only exception is the high voltage control. The high voltage control should be adjusted in conjunction with the Apple approved high voltage probe and set to 27.0 KV. This adjustment should be made whenever the main deflection board is replaced.
Note: Adjustments on various parameters are saved both as user and as "Factory Default" settings.
In addition, selecting the "Adjust Geometry" button will automatically check the high voltage for out of range. If the high voltage is out of range, a nominal high voltage value will be written to the factory setting of the high voltage register. You should then check the high voltage value using the Apple-approved high voltage probe. If it is not 27.0 KV, set it to 27.0 KV following the procedures in the Service Source CD.
Note: Out-of-range high voltage has been known to cause a monitor to lose video or
turn the screen black. Therefore, it is highly recommended to select the "Adjust Geometry" button first if the symptom of no video or black screen occurs.
H-Focus Adjustment
Selecting the "H-Focus" button will allow you to use scroll bar to adjust dynamic focus. This adjustment should be made whenever the main deflection board is replaced. For instructions, please refer to Service Source CD: AppleVision 850/850AV: Troubleshooting: "Adjusting the Display after Replacing the Main Deflection Board."
Note: The H-Focus adjustment should be made on the three different MAC resolutions.
These resolutions are 640x480 @67Hz, 832x624 @75Hz, and 1152x870 @75Hz.
Parameter Setting Restoration
Parmeter Setting Restoration is required to do video board replacement. For instructions, please refer to Service Source CD: AppleVision 850/850AV:Troubleshooting:"Downloading Setup Parameters and Replacing the CRT/Video Board."
Recalibrate White Points
The Recalibrate White Points procedure must be performed as the last step in video board replacement. For instructions, please refer to Service Source CD: AppleVision 850/850AV: Troubleshooting: Adjusting the Display after Replacing the CRT/Video Board: "Recalibrate White Points."
