K Service Source 17" ColorSync Displays 17” ColorSync Display (was AppleVision 750) 17” ColorSync AV Display (was AppleVision 750AV)
K Service Source Hot Issues 17" ColorSync Displays (AppleVision 750, 750AV)
Hot Issues Overview - 1 Overview This chapter is designed to highlight unique or highpriority product issues that you should be aware of before servicing this display. This chapter alerts you to important issues and provides links to other areas in the manual where more complete information can be found. This chapter is not intended to replace other parts of this manual; it merely provides a pointer to pertinent information in those chapters.
Hot Issues Revised Troubleshooting Chapter Features CRT/Video Board Pro- Revised Troubleshooting Chapter Features CRT/Video Board Procedures (3/98) The Troubleshooting chapter has been revised to include procedures for downloading setup parameters, adjusting the display after replacing the CRT/video board or the main deflection board, and diagnosing suspected hardware problems. The latest version of the Diagnostics utility called Display Service Utility (v4.2.
Hot Issues Revised Troubleshooting Chapter Features CRT/Video Board Proexpanded Troubleshooting chapter for the latest troubleshooting procedures; refer to the Diagnostics site of Service Source Online or the Service Source Companion CD (Diagnostic Utilities folder) for the Display Service Utility v4.2.1.
Hot Issues Jittery or Blurry Video with Power Macintosh 5500/6500 Jittery or Blurry Video with Power Macintosh 5500/6500 (12/97) If the display exhibits jittery or blurry video when connected to a Power Macintosh 5500 or 6500, suspect the computer, not the monitor. Video jitter affects monitors connected to computers having a 225 or 250 MHz logic board. Jitter is evident where the pixels shimmer or jump at the edges of the screen, windows, or dialog boxes.
Hot Issues Jittery or Blurry Video with Power Macintosh 5500/6500 Identifying Suspect Units Video jitter or blurry video can be caused by Power Macintosh computers within the following serial number ranges. Video Jitter • PM 5500 from TY705xxxxx to TY715xxxxx • PM 6500 from XB708xxxxx to XB718xxxxx Blurry Video • PM 6500 from XB708xxxxx to XB723xxxxx The system software on Power Macintosh 6500 computers allows selecting monitor resolutions above 1152x870.
Hot Issues Jittery or Blurry Video with Power Macintosh 5500/6500 Power Macintosh 6500 computers should not be set to resolutions higher than 1152x870. Check the Monitors & Sound control panel to make sure the resolution is set to 1152x870 or lower. For a chart of supported monitor resolutions for the Power Macintosh 6500, see the Specifications chapter in the Performa/ Power Macintosh 6400 and 6500 Series manual on Service Source.
K Service Source Basics 17" ColorSync Displays (AppleVision 750, 750AV)
Basics Product Name Change - 1 Product Name Change The AppleVision 750 and 750AV Displays were renamed in November, 1997. Original Name AppleVision 750 Display AppleVision 750AV Display New Name 17” (16.1” VIS) ColorSync Display 17” (16.1” VIS) ColorSync AV Display Although the body of this service manual retains the AppleVision names, both names are shown on the title page of each chapter. The ColorSync name change was the only change to the product.
Basics Product Overview - 2 Product Overview The AppleVision 750AV Display is a full-page, Trinitron color monitor that supports a variety of resolutions. The display includes sound and video support for multimedia application programs and advanced controls for accurate color rendering. The AppleVision 750AV Display has a diagonal viewable image size of 16.1 inches.
Basics Product Overview - 3 The AppleVision 750AV Display works with both Mac OSbased and Windows-based computers.
Basics Repair Issue: Display Service Utility - 4 Repair Issue: Display Service Utility The Display Service Utility (on the Service Source Companion CD: Diagnostic Utilities folder) is an application that you can use to display video test patterns, run some troubleshooting procedures, and adjust geometry.
Basics Repair Issue: Display Service Utility - 5 A selection for the AppleVision 750/750AV was added to the latest version of the Display Service Utility on the Service Source Companion CD and Service Source Online. Within the Display Service Utility, select Pattern Selections: AppleVision 750/750AV, and click the Adjust Geometry button.
Basics Repair Issue: Display Service Utility - 6 geometry adjustments. Although most of these adjustments can be duplicated by using the Monitors & Sound control panel, high voltage can only be adjusted with the Display Service Utility. Refer to the Read Me document in the Display Service Utility folder for more information. For more information on using the Display Service Utility for troubleshooting or adjusting the AppleVision 750 and 750AV displays, refer to the Troubleshooting chapter in this manual.
Basics Repair Issue: TCO 95 Housing - 7 Repair Issue: TCO 95 Housing Effective January 1998, TCO 95 plastics are used for the 17” ColorSync Display (but not the AV version).
K Service Source Specifications 17" ColorSync Displays (AppleVision 750, 750AV)
Specifications Introduction - 1 Introduction Specifications information for this product can be found in this chapter and also in the Spec Database, which you can access in one of three ways: • Launch it directly by double-clicking the Apple Spec Database runtime alias at the top level of the Main Service Source CD. • Select “Apple Spec Database” from the Service Source dropdown main menu. • Click the Acrobat toolbar icon for the database, which is near the right end of the toolbar with the letters “SP.
Specifications Characteristics - 2 Characteristics Picture Tube Screen Resolution 17-in. Trinitron CRT (16.1-in. diagonal viewable image) Multiple scan, antistatic, antiglare surface treatment 0.26-mm stripe pitch 640x480 at 60 Hz in VGA mode 640x480 at 66.67 Hz in Macintosh mode 800x600 at 60.31 Hz in VESA mode 800x600 at 75 Hz in VESA mode 832x624 at 74.55 Hz in Macintosh mode 1024x768 at 74.
Specifications Characteristics - 3 Scan Rates Vertical refresh rate: 40–120 Hz Horizontal scan rate: 30–80 kHz Cable Connector 15-pin miniature D-type Input Signals Red, green, and blue signals; separate sync
Specifications System Requirements Characteristics - 4 System software version 7.
Specifications Monitor Timings Characteristics - 5 640x480 Resolution @ 60 Hz 640x480 Resolution @ 66.67 Hz Horizontal Timing 1/H: 31.5 kHz Back Porch: 48 dots H SYNC: 96 dots Front Porch: 16 dots 1 H: 31.75 µs 1/dot: 25.175 MHz Horizontal Timing 1/H: 34.97 kHz Back Porch: 96 dots H SYNC: 64 dots Front Porch: 64 dots 1 H: 28.0 µs 1/dot: 30.24 MHz Vertical Timing 1 V: 16.7 ms Back Porch: 33 H V SYNC: 2 H Front Porch: 10 H Vertical Timing 1 V: 15.
Specifications Monitor Timings Characteristics - 6 800x600 Resolution @ 60.31 Hz 800x600 Resolution @ 75 Hz Horizontal Timing 1/H: 37.9 kHz Back Porch: 88 dots H SYNC: 128 dots Front Porch: 40 dots 1 H: 27.85 µs 1/dot: 40.000 MHz Horizontal Timing 1/H: 46.9 kHz Back Porch: 160 dots H SYNC: 80 dots Front Porch: 16 dots 1 H: 21.33 µs 1/dot: 49.5 MHz Vertical Timing 1 V: 16.58 ms Back Porch: 22 H V SYNC: 4 H Front Porch: 2 H Vertical Timing 1 V: 13.
Specifications Monitor Timings Characteristics - 7 832x624 Resolution @ 74.55 Hz 1024x768 Resolution @ 74.93 Hz Horizontal Timing 1/H: 49.7 kHz Back Porch: 224 dots H SYNC: 64 dots Front Porch: 32 dots 1 H: 20.1 µs 1/dot: 57.28 MHz Horizontal Timing 1/H: 60.24 kHz Back Porch: 176 dots H SYNC: 96 dots Front Porch: 32 dots 1 H: 16.6 µs 1/dot: 80 MHz Vertical Timing 1 V: 13.41 ms Back Porch: 38 H V SYNC: 3 H Front Porch: 2 H Vertical Timing 1 V: 13.
Specifications Monitor Timings Characteristics - 8 1024x768 Resolution @ 60 Hz 1152x870 Resolution @ 75 Hz Horizontal Timing 1/H: 48.4 kHz Back Porch: 160 dots H SYNC: 136 dots Front Porch: 24 dots 1 H: 20.68 µs 1/dot: 65.0 MHz Horizontal Timing 1/H: 68.681 kHz Back Porch: 144 dots H SYNC: 128 dots Front Porch: 32 dots 1 H: 14.56 µs 1/dot: 100.00 MHz Vertical Timing 1 V: 16.66 ms Back Porch: 29 H V SYNC: 6 H Front Porch: 3 H Vertical Timing 1 V: 13.
Specifications Monitor Timings Characteristics - 9 1280x1024 Resolution @ 60 Hz 1280x1024 Resolution @ 75.03 Hz Horizontal Timing 1/H: 63.8 kHz Back Porch: 272 dots H SYNC: 112 dots Front Porch: 16 dots 1 H: 15.23 µs 1/dot: 110.25 MHz Horizontal Timing 1/H: 79.976 kHz Back Porch: 248 dots H SYNC: 144 dots Front Porch: 16 dots 1 H: 12.5 µs 1/dot: 135 MHz Vertical Timing 1 V: 16.66 ms Back Porch: 39 H V SYNC: 3 H Front Porch: 1 H Vertical Timing 1 V: 13.
Specifications Speakers (750AV only) Characteristics - 10 Stereo, with ported (bass reflex) chamber design Maximum loudness: 92 dB SPL at 1 kHz at 0.
Specifications Controls and Ports - 11 Controls and Ports User Controls Front panel (750AV): power, brightness, contrast, bass, treble, microphone on, volume, mute, and three on-screen control buttons Front panel (750): power, brightness, contrast, and three onscreen control buttons Additional picture and sound controls available using the Monitors & Sound control panel (Mac OS-based computers) or onscreen controls (Windows-based computers) Automatic degauss at power-on; manual degauss by turning power s
Specifications I/O Ports Controls and Ports - 12 Apple Desktop Bus (ADB): Two pass-through output ports Headphone/Speaker (750AV): One audio output port and two built-in speakers Microphone (750AV): One input port and one built-in microphone
Specifications Physical and Electrical - 13 Physical and Electrical Power Supply Size and Weight (750) Size and Weight (750AV) Voltage: 100–120 VAC; 220–240 VAC Frequency: 50–60 Hz Power (750): 130 W maximum Power (750AV): 190 W maximum Height: 16.6 in. (425 mm) Width: 16.0 in. (410 mm) Depth: 17.7 in. (455 mm) Weight: 50 lb. (22.5 kg) Height: 18.8 in. (485 mm) Width: 16.0 in. (410 mm) Depth: 18.8 in. (485 mm) Weight: 60 lb.
Specifications Environmental - 14 Environmental Temperature Humidity Operating: 50°F to 104°F (10°C to 40°C) Shipping: –4°F to +140°F (–40°C to +60°C) Storage: 32°F to 140°F (0°C to 60°C) Operating: 20% to 80%, noncondensing Shipping: 5% to 90%, noncondensing Storage: 5% to 90%, noncondensing Altitude Operating: 0 to 10,000 ft. (0 to 3,048 m) Transit: 0 to 35,000 ft.
Specifications Environmental - 15 TCO 92 compliant: Certified by TCO (the Swedish Confederation of Professional Employees) to have met global safety standards and power-saving features TCO 95 compliant (applies to ColorSync Display only if marked with TCO 95 on rear housing)
Apple ColorSync Displays Apple’s ColorSync Displays feature advanced color calibration for outstanding image quality and color consistency, both right out of the box and over time. Combining top-of-the-line Sony Trinitron CRT technology with innovative Apple software technologies and ergonomic design features, they’re ideal viewing solutions for even the most demanding business and publishing professionals—and they offer an unparalleled return on investment. Available in two sizes—17 and 20 inches (16.
Apple ColorSync Displays Technical Specifications Picture tube • 17- or 20-inch (diagonal) Sony Trinitron CRT (16.1- or 19-inch diagonal viewable image size) • 0.
K Service Source Troubleshooting 17" ColorSync Displays (AppleVision 750, 750AV)
Troubleshooting General - 1 General The Symptom Charts included in this chapter will help you diagnose specific symptoms related to your product. Because cures are listed on the charts in the order of most likely solution, try the first cure first. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.
Troubleshooting First Checklist/ - 2 First Checklist Important: Many AppleVision 750 and 750AV display modules returned for repair are found to be fully operational. Read this checklist before you return a module, and prevent needless module replacement and unnecessary time delays. The AppleVision 750/750AV Display is not compatible with all computers. This display works with both Macintosh and IBM PC-compatible computers. A video card may need to be installed to use this display with some computers.
Troubleshooting First Checklist/ - 3 A maladjusted screen can mimic the symptoms of main deflection board or CRT failures. By performing the adjustment procedures, you might determine if one or more of the adjustments is the cause of the problem. Variances in screen color and brightness are usually caused by the setup controls or the environment. Screen color purity over the entire screen is never perfect. CRT tolerances allow for some distortion.
Troubleshooting Symptom Charts/No Raster - 4 Symptom Charts Important: For procedures that require the monitor to be turned on, allow the monitor to warm up for approximately 20 minutes, unless instructed otherwise. Important: Ensure the latest version of Apple Display software (1.5.3 or later) is installed. (Apple Display software supersedes and replaces AppleVision software as of version 1.5.3.
Troubleshooting No raster (screen is black); power indicator light off Symptom Charts/Geometry - 5 1 2 3 4 5 No raster (screen is black) after Restart 1 2 3 Verify that monitor is connected to live power source, that power button is on, and that computer is turned on. Important: Be sure the ADB and video cables from the monitor are connected to the ports on the computer. Check that all internal cables are connected and that CRT/ video board is properly seated on CRT socket.
Troubleshooting Symptom Charts/Screen Color - 6 Screen Color Screen is one predominant color 1 2 3 4 5 Screen has color rainbow effect (bands of color across the screen) 1 2 3 4 Verify that CRT/video board is properly seated on CRT socket. Using Monitors & Sound control panel, click Recalibrate button (see the Adjustments chapter). With Apple Display software (version 1.5.
Troubleshooting Symptom Charts/Focus - 7 Focus Focus poor 1 2 3 4 5 6 Using the Monitors & Sound control panel, verify that convergence is set correctly. Maladjusted convergence gives the appearance of bad focus. Note: Convergence over entire screen is never perfect. Using the Display Service Utility (inside the Diagnostics Utilities folder on the Service Source Companion CD), select focus pattern.
Troubleshooting Center of screen remains blurry after adjusting focus and convergence Symptom Charts/Focus - 8 1 2 3 Use a standard plastic hex tool to adjust H-Stat (lower left side of CRT/video board). If center-of-screen appearance is good, but top/bottom convergence is blurry, use a plastic adjustment tool to adjust the top and bottom convergence (back of CRT/video board). If screen is still blurry after adjusting convergence, one of the CRT socket wires may be improperly secured.
Troubleshooting Symptom Charts/Audio (750AV only) - 9 Audio (750AV only) The symptoms associated with a defective sound enclosure are relatively easy to diagnose. Following are typical symptoms of a defective audio system. However, some of these symptoms can also be caused by defective speakers, the built-in microphone, and connectors or cables that plug into the sound enclosure.
Troubleshooting Suspected hardware problem because checking cables, power, software, and other front-ofscreen cures did not solve problem Symptom Charts/Miscellaneous - 10 Refer to “Diagnosing a Suspected Hardware Problem” in this chapter.
Troubleshooting Downloading Setup Parameters and Replacing the CRT/Video Downloading Setup Parameters and Replacing the CRT/Video Board* * Important: Some countries do not support replacement of the CRT/video board. Check the service strategy in your region before continuing this procedure.
Troubleshooting Downloading Setup Parameters and Replacing the CRT/Video Duplicate the Parameter Settings File 1 2 3 4 5 Locate the Parameter Settings 750 file, but do not move or rename it. Beside the Parameter Settings 750 file create a new folder. Name the new folder Parameter File Backup. Hold down the option key and drag the Parameter Settings 750 file onto the Parameter File Backup folder. Shut down the monitor. Unplug the power cord.
Troubleshooting Adjusting the Display after Replacing the CRT/Video Board*/ Adjusting the Display after Replacing the CRT/Video Board* * Important: Some countries do not support replacement of the CRT/video board. Check the service strategy in your region before continuing this procedure. Caution: Perform this procedure only after you’ve replaced the CRT/video board and uploaded the parameter settings. After replacing the CRT/video board, some adjustment is necessary.
Troubleshooting Adjusting the Display after Replacing the CRT/Video Board*/ Recalibrate White Points Caution: If the video cable is connected to a third-party video card that uses proprietary color calibration drivers, you might need to disable the drivers to use the AppleVision color calibration functions. 1 After you’ve rewritten the file, as instructed in “Upload Parameter Settings,” restart the system. 2 Open Monitors & Sound and select Color.
Troubleshooting Adjusting the Display after Replacing the Main Deflection Board/ Adjusting the Display after Replacing the Main Deflection Board After replacing the main deflection board, perform the following adjustments for all three Macintosh modes (screen resolutions): • 640x480 at 67 Hz • 832x624 at 75 Hz • 1024x768 at 75 Hz 1 Using the control strip (or the Monitors control panel), select 1024x768, the highest of the three Macintosh screen resolutions.
Troubleshooting Adjusting the Display after Replacing the Main Deflection Board/ 5 6 7 If necessary, repeat step 4 for the best overall focus. Check the screen to see if any minor geometry adjustments are necessary. If so, shut down the monitor and unplug the power cord. Install the jumper on the CRT/video board. Reattach the power cord. Restart the computer. Open the Display Service Utility and select AppleVision 750/750AV pattern selections. Use the DSU geometry slider controls to adjust the display.
Troubleshooting Checking High Voltage/Recalibrate White Points - 17 Checking High Voltage This high-voltage check is a required procedure for some of the symptoms in this chapter. After checking high voltage, return to the symptom chart, if necessary. Caution: Do not attempt this procedure without the Apple highvoltage probe (Apple part number 076-0392). Use only the Apple high-voltage probe; other high-voltage probes will not give accurate readings for this procedure.
Troubleshooting Diagnosing A Suspected Hardware Problem/Recalibrate White Diagnosing A Suspected Hardware Problem After ruling out other possible cures (that is, you have already checked cable connections, power, AppleVision software, and other possible front-of-screen cures), use the following procedure to help determine and resolve hardware problems. (See the flowchart at the end of this chapter for a simplified depiction of this process.
Troubleshooting Diagnosing A Suspected Hardware Problem/Recalibrate White 7 If a dialog box appears that says the Display Service Utility (DSU) is unable to communicate with the display, then remove the monitor housing, and use a multimeter to measure the voltage between chassis ground and resistor RL1 on the end closest to capacitor CP17 on the main deflection board: • If the voltage measures 11.5 V to 12.
Troubleshooting Diagnosing A Suspected Hardware Problem/Recalibrate White 8 If the Create File process finishes successfully, click Adjust Geometry. Clicking this button causes the DSU to automatically verify EHT (high voltage). Use a probe to measure the high voltage. (Refer to “Checking High Voltage” in this chapter.) • If the high voltage is okay, replace the CRT/video board and adjust the display (see “Adjusting the Display after Replacing the CRT/Video Board” in this chapter).
Troubleshooting Diagnosing A Suspected Hardware Problem/Recalibrate White Start Open DSU and click Create File. DSU able to communicate with display (Create File process successful) ? No Measure voltage between chassis ground and RL1 (390 Ohm, pin closest to CP17). Yes Click Adjust Geometry. Adj.HV according to spec in Service Source. High voltage OK ? Voltage measures 11.5 to 12.5 V ? No Yes No Replace MDB. Yes Replace CRT/video board. Problem gone? Yes No No Return display for whole unit.
K Service Source Take Apart 17" ColorSync Displays (AppleVision 750, 750AV)
Take Apart Model Differences - 1 Model Differences Unless indicated otherwise, the procedures in this chapter apply to both models. Procedures and steps that only apply to one of the models are indicated with the model number (750 or 750AV). Important: Effective January 1998, TCO 95 plastics are used for the 17” ColorSync Display (not the AV version) and are identified by the TCO 95 marking on the back of the rear housing.
Take Apart Microphone Assembly/Blank Plate - 2 Microphone Assembly/Blank Plate No preliminary steps are required before you begin this procedure. Note: The microphone assembly is on the 750AV display; the blank plate is on the 750 display. To protect the microphone assembly or blank plate, remove it before removing the sound enclosure or rear housing.
Take Apart Microphone Assembly/Blank Plate - 3 1 2 Place a jeweler’s screwdriver in the microphone assembly slot. Press the screwdriver down and toward the bezel to release a tab that holds the microphone to the bezel and rear housing. Grasp the microphone assembly with your other hand, and tilt it up and away from the monitor bezel.
Take Apart Microphone Assembly/Blank Plate - 4 3 Disconnect the microphone cable and remove the microphone assembly.
Take Apart Sound Enclosure (750AV only) - 5 Sound Enclosure (750AV only) Before you begin, remove the microphone assembly.
Take Apart Sound Enclosure (750AV only) - 6 1 Place the monitor upside down on a protective pad.
Take Apart Sound Enclosure (750AV only) - 7 2 Peel off the two adhesive disk screw covers. Stick them beside the screw holes. Replacement Note: After reinstalling the sound enclosure, replace the adhesive disk screw covers. They help maintain the sound integrity of the speaker chamber.
Take Apart Sound Enclosure (750AV only) - 8 3 Use a long T-15 torx driver to loosen (but not remove) the four corner screws. Important: Do not remove the captive screws; they are held in place by rubber grommets inside the sound enclosure.
Take Apart Sound Enclosure (750AV only) - 9 4 5 BA10 BM3 Tilt up the sound enclosure, away from the monitor side.
Take Apart Sound Enclosure (750AV only) - 10 Sound Enclosure Monitor 6 Lift the sound enclosure straight up and away from the monitor.
Take Apart Sound Enclosure (750AV only) - 11 Replacement Note: Ensure that the 2-pin connector wire is routed through the rectangular opening in the rear housing before securing it to the sound board at BA10.
Take Apart Sound Enclosure Bezel (750AV only) - 12 Sound Enclosure Bezel (750AV only) Before you begin, remove the following: • Microphone assembly • Sound enclosure Sound Enclosure Bezel
Take Apart Sound Enclosure Bezel (750AV only) - 13 1 2 If you see glue where the bezel and the speaker chamber meet, cut through the glue with a sharp knife. With the bezel facing you, place your thumbs on the notched top edges and pull the bezel up and toward you to release the tabs.
Take Apart Sound Enclosure Bezel (750AV only) - 14 HA3 3 4 BA3 Disconnect the cable at BA3 from the sound board. Disconnect the singlepin connector at HA3 from the sound board.
Take Apart Sound Enclosure Bezel (750AV only) - 15 5 Screws Sound Control Board Remove the three T-8 torx screws from the sound control board.
Take Apart Speakers (750AV only) - 16 Speakers (750AV only) Before you begin, remove the following: • Microphone assembly • Sound enclosure • Sound enclosure bezel
Take Apart Speakers (750AV only) - 17 1 Disconnect speaker wires BA5 and BA6 from the sound board. Replacement Note: The speaker wires must cross each other. So when the front of the sound enclosure is facing you, the left speaker wire connects to the right connector at BA5, and the right speaker wire connects to the left connector at BA6. When replacing a speaker, route the wires through the guides on the speaker chamber.
Take Apart Speakers (750AV only) - 18 2 Remove the four T-15 torx speaker screws. Caution: When replacing a speaker, do not overtighten the screws.
Take Apart Audio Cable (750AV only) - 19 Audio Cable (750AV only) Before you begin, remove the following: • Microphone assembly • Sound enclosure
Take Apart Audio Cable (750AV only) - 20 1 2 Disconnect the audio cable from connector BA4 on the sound board. Lift the cable from the plastic guides and from the slot in the sound enclosure.
Take Apart Sound Board (750AV only) - 21 Sound Board (750AV only) Before you begin, remove the following: • Microphone assembly • Sound enclosure • Audio cable
Take Apart Sound Board (750AV only) - 22 1 Disconnect from the sound board • Connector at BA3 • 2-pin connector at BA5 • 2-pin connector at BA6 Replacement Note: The speaker wires must cross each other. So when the front of the sound enclosure is facing you, the left speaker wire connects to BA5, and the right speaker wire connects to BA6.
Take Apart Sound Board (750AV only) - 23 2 3 Remove the four T-15 torx screws from the sound board. Lift the board off of the sound enclosure.
Take Apart Bottom Housing (750 only) - 24 Bottom Housing (750 only) Bottom Housing No preliminary steps are required before you begin this procedure. Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ± 1 Place the monitor face down on a protective pad.
Take Apart Bottom Housing (750 only) - 25 2 3 Screws Position the tilt-swivel base sideways and so it is resting over a table edge. Slide the tilt-swivel base down and remove the two T-15 torx screws above the tiltswivel base.
Take Apart Bottom Housing (750 only) - 26 4 Screws Slide the tilt-swivel base up and remove the two T-15 torx screws below the base.
Take Apart Bottom Housing (750 only) - 27 5 Rear Housing 6 7 8 HM1 BH1 Bottom Housing Tilt the bottom housing away from the rear housing. Disconnect the 4-pin connector at BH1 on the ADB board. Disconnect the singlepin connector at HM1 on the intermediate board. Remove the bottom housing.
Take Apart ADB Board (750 only) - 28 Tab ADB Board (750 only) Before you begin, remove the bottom housing. Note: The ADB board consists of two boards joined together with a cable and soldered connections. 1 2 ADB Board Tab Press and hold the two tabs away from the ADB board. Tilt the board up from the bottom housing to release it.
Take Apart ADB Board (750 only) - 29 Replacement Note: Before securing the board tabs, position the ADB board so the plastic pins on the bottom housing line up with the holes in the board.
Take Apart Rear Housing - 30 Rear Housing Before you begin, remove the following: • Microphone assembly or blank plate • Sound enclosure (750AV display) This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety.
Take Apart Rear Housing - 31 Important: You must remove the microphone assembly or blank plate and the sound enclosure before removing the rear housing. 1 2 With the monitor face down on a protective pad, remove the two T-15 torx screws and washers. Locate the four screw covers.
Take Apart Rear Housing - 32 3 4 5 Caution: To avoid damaging the plastic housing or screw cover, don’t use a screwdriver or other metal tool. With one hand, press down on the tip of the screw cover, causing the screw cover to bow outward from the screw channel. Pull out the screw cover with your other hand. Repeat steps 3 and 4 for the remaining three screw covers.
Take Apart Rear Housing - 33 Rear Housing 6 7 Screw Screw Bezel Remove the four T-15 torx screws. Where the top part of the rear housing meets the bezel, pull up and out on the arched opening (at the microphone assembly/blank plate area) to release the rear housing tabs from the bezel.
Take Apart Rear Housing - 34 8 With both hands on the rear housing, lift it off the bezel. Route the video cable through the housing opening.
Take Apart Rear Housing - 35 Replacement Note: For the AppleVision 750AV only, ensure that the 2-pin connector wire is routed through the rectangular opening in the rear housing before replacing the rear housing screws.
Take Apart CRT/Video Board - 36 CRT/Video Board Before you begin, • Remove the microphone assembly/blank plate • Remove the sound enclosure (750AV only) • Remove the rear housing • Discharge the CRT • Download the setup parameters before replacing the CRT/video board (refer to the Troubleshooting chapter) Caution: To avoid loss of data, you must download the display parameter
Take Apart CRT/Video Board - 37 settings using the Display Service Utility before replacing the CRT/video board with a new board. This product contains high voltage and a highvacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ±Warning: Caution: Never use a grounding wriststrap until after discharging the CRT. Caution: When disconnecting cables from the CRT/video board, be careful not to apply excessive pressure to the neck of the CRT.
Take Apart CRT/Video Board - 38 After discharging the CRT, 1 2 3 With needlenose pliers or a flat-blade screwdriver, disconnect the long braided CRT ground cable. Use a Phillips screwdriver to remove the screw from the copper ground strap. Remove the anode cap.
Take Apart CRT/Video Board - 39 4 Disconnect • BV14 • BV15 • BV16 • BV2 (ribbon cable) • Copper tape • Ground strap (Phillips screw)
Take Apart CRT/Video Board - 40 5 6 7 Disconnect these cables: • BV12 (ribbon cable) • BS6 (5-pin connector next to BV12) Remove the single Phillips screw from the metal shield on top of the CRT/video board. Remove the metal shield.
Take Apart CRT/Video Board - 41 8 9 Disconnect the video cable at • BV4 • BV3 Remove the Phillips screw that attaches the video cable clip to the CRT/video board.
Take Apart CRT/Video Board - 42 10 Disconnect the black connector near the ferrite ring. 11 Bend the wire of the ferrite ring holder to release the ferrite ring.
Take Apart CRT/Video Board - 43 12 Loosen the flat-head mounting screw on the metal ring clamp that holds the CRT/video board to the CRT neck.
Take Apart CRT/Video Board - 44 13 Caution: Twisting, bending, or applying force to the CRT/video board could damage the neck of the CRT. With a gentle side-toside motion, ease the CRT/video board off the neck of the CRT until it clears the neck pins.
Take Apart CRT/Video Board - 45 14 With the red and white flyback transformer wires still attached, remove the three Phillips screws from the neck twist coil. 15 Press the tab and slide the neck twist coil to the left and off of the CRT/ video board.
Take Apart CRT/Video Board - 46 16 While holding, but not pulling, the red and white wires, use a jeweler’s flat-blade screwdriver to tilt up the wire locks. Do not remove the wire locks from the CRT socket. Replacement Note: Place the wires in the correct location as shown: red wire in the right wire lock and the white wire in the left wire lock. Check proper insertion by gently pulling the wires; they should not move.
Take Apart CRT/Video Board - 47 Caution: If the wires are swapped or not pressed in far enough, the screen display will show poor focus.
Take Apart Main Deflection Board - 48 Main Deflection Board Before you begin, • Remove the microphone assembly/blank plate • Remove the sound enclosure (750AV only) • Remove the rear housing • Discharge the CRT • Remove the CRT/video board This product contains high voltage and a high-vacuum picture tube.
Take Apart Main Deflection Board - 49 review CRT safety in Bulletins/Safety. Caution: Never use a grounding wriststrap until after discharging the CRT. 1 2 Disconnect two-wire cable BP2 (black and white wires) from the main deflection board.
Take Apart Anode Cap Main Deflection Board - 50 CRT Frame Spring 3 4 Disconnect the spring from the CRT frame. Disconnect the anode cap.
Take Apart Main Deflection Board - 51 5 Disconnect BM4 from the intermediate board.
Take Apart Main Deflection Board - 52 6 7 8 Place the monitor face down on a padded surface. Remove the six Phillips screws that secure the chassis to the CRT frame. Lift the main deflection board chassis straight off the CRT frame.
Take Apart Main Deflection Board - 53 Replacement Note: The main deflection board module includes the main deflection board and chassis as one part. The intermediate board and the video cable are not part of the main deflection board module.
Take Apart Intermediate Board - 54 Intermediate Board Important: Service data indicates this board rarely fails.
Take Apart Intermediate Board - 55 This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ±Warning: Caution: Never use a grounding wriststrap until after discharging the CRT. 1 2 3 Remove the two Phillips screws. Disconnect the 4-pin connector at BM5. Lift the intermediate board off of the chassis.
Take Apart Video Cable and Strain Relief - 56 Video Cable and Strain Relief Before you begin, • Remove the microphone assembly/blank plate • Remove the sound enclosure (750AV only) • Remove the rear housing • Discharge the CRT This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety.
Take Apart Video Cable and Strain Relief - 57 Caution: Never use a grounding wriststrap until after discharging the CRT. 1 2 Remove the single Phillips screw from the metal shield on top of the CRT/video board. Remove the metal shield.
Take Apart Video Cable and Strain Relief - 58 3 4 5 Disconnect the video cable at • BV4 • BV3 Remove the Phillips screw that attaches the video cable clip to the CRT/video board. Refer to “CRT/Video Board” in this chapter to remove the CRT/video board.
Take Apart Video Cable and Strain Relief - 59 6 7 Remove the Phillips screw from the metal chassis. Lift the strain relief straight out of the chassis slot.
Take Apart On-Screen Display Board - 60 On-Screen Display Board Before you begin, • Remove the microphone assembly/blank plate • Remove the sound enclosure (750AV only) • Remove the rear housing • Discharge the CRT • Remove the CRT/video board • Remove the main deflection board
Take Apart On-Screen Display Board - 61 This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ±Warning: Caution: Never use a grounding wriststrap until after discharging the CRT. 1 With the CRT face-down on a padded surface, remove the 5/16-inch hex screws from the four corners of the CRT.
Take Apart On-Screen Display Board - 62 2 Lift the metal frame straight off of the bezel.
Take Apart On-Screen Display Board - 63 3 4 Use a 9/64-inch hex key to remove the four screws holding the onscreen control boards to the front bezel. Lift the boards, including their plastic holders, straight up from the bezel.
Take Apart Front Bezel - 64 Front Bezel Before you begin, • Remove the microphone assembly/blank plate • Remove the sound enclosure (750AV only) • Remove the rear housing • Discharge the CRT • Remove the CRT/video board • Remove the main deflection board
Take Apart Front Bezel - 65 This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ±Warning: Caution: Never use a grounding wriststrap until after discharging the CRT. 1 With the CRT face-down on a padded surface, remove the four 5/16inch hex screws.
Take Apart Front Bezel - 66 2 Lift the metal frame straight off the bezel.
Take Apart Front Bezel - 67 3 Using both hands, lift the CRT off of the bezel.
Take Apart Front Bezel - 68 Replacement Note: Route the cables as shown when replacing the bezel. Replacement Note: When replacing a TCO 95 front bezel for a ColorSync display, note that the microphone cable is not included nor required.
K Service Source Adjustments 17" ColorSync Displays (AppleVision 750, 750AV)
Adjustments Introduction to the Monitors & Sound Control Panel - 1 Introduction to the Monitors & Sound Control Panel You can adjust the screen image using the buttons on the front of the display or you can use the Monitors & Sound control panel from AppleVision software. Most of the adjustment procedures require use of the Monitors & Sound control panel.
Adjustments Introduction to the Monitors & Sound Control Panel - 2 looks like a question mark; it appears in the upperright corner of the screen. Before you begin, make sure you have installed the AppleVision software and have connected the monitor cable’s ADB connector to your computer’s ADB port. If you need more information or you are using the monitor with a Windows-based computer, refer to the AppleVision Display user’s manual for the AppleVision 750 and 750AV.
Adjustments Introduction to the Monitors & Sound Control Panel - 3 From the Monitors & Sound control panel, you can select six main buttons: Monitor, Arrange, Sound, Alerts, Geometry, and Color.
Adjustments Introduction to the Monitors & Sound Control Panel - 4 The Monitor Sound button controls the monitor’s internal speakers and devices connected to the AppleVision 750AV Display. (This button is not available in the Monitors & Sound control panel for the AppleVision 750 Display.) Note: The remainder of this chapter covers some of the tools available from the Monitors & Sound control panel. For more thorough information, refer to the Monitors & Sound Guide or the linked documents.
Adjustments Monitors & Sound Control Panel Brightness and Contrast - 5 Brightness and Contrast Before you begin, install the AppleVision software. Note: There are two ways to adjust the brightness and contrast. You can use the controls on the right side of the front panel, or you can use the Monitors & Sound control panel.
Adjustments Brightness and Contrast - 6 Brightness Brightness Controls O Z ¤ ® To use the front panel brightness controls, • Press the down button to decrease the brightness. • Press the up button to increase the brightness.
Adjustments Brightness and Contrast - 7 Contrast To use the front panel contrast controls, • Press the down button to decrease the contrast. • Press the up button to increase the contrast.
Adjustments Brightness and Contrast - 8 Using Monitors & Sound To use the Monitors & Sound control panel to adjust brightness and contrast, Control Buttons 1 O Z ¤ ® Press any control button to open the Monitors & Sound control panel. Or select Control Panels from the Apple menu, and select Monitors & Sound.
Adjustments Brightness and Contrast - 9 2 Click the Monitor button.
Adjustments Brightness and Contrast - 10 3 Slider Control Slider Control Drag the slider controls left or right to decrease or increase the brightness and contrast.
Adjustments Geometry - 11 Geometry 1 2 Press any control button to open the Monitors & Sound control panel. Or select Control Panels from the Apple menu, and select Monitors & Sound. Click the Geometry button.
Adjustments Height/Width Geometry - 12 Height/Width 1 Click Height/Width. 3 Drag the left or right side of the screen rectangle to change the width. 2 4 Move the pointer over the screen rectangle in the picture of the display. Drag the top or bottom edge of the screen rectangle to change the height.
Adjustments Geometry - 13 Arrow Buttons Note: Instead of dragging the screen rectangle, you can adjust height and width by clicking the arrow buttons for incremental movement. Normal height and width leaves a black border of approximately 1/2-inch around the screen image.
Adjustments Position Geometry - 14 Arrow Buttons Position (Centering) 1 Click Position. 3 Drag the screen rectangle to center the image. 2 Move the pointer over the picture of the display. Note: Instead of dragging the screen rectangle, you can also adjust height and width by clicking the arrow buttons for incremental movement.
Adjustments Geometry - 15 Pincushion 1 Click Pincushion. 3 Drag the left or right side of the screen rectangle to adjust the image. 2 Pincushion Arrow Buttons Move the pointer over the picture of the display. Note: Instead of dragging the screen rectangle, you can adjust the shape of the image by clicking the arrow buttons for incremental movement.
Adjustments Geometry - 16 Rotating 1 Click Rotate. 3 Drag the screen rectangle clockwise or counterclockwise to rotate the image. 2 Move the pointer over the picture of the display. Note: Instead of dragging the screen rectangle, you can rotate the image by clicking the arrow buttons for incremental movement.
Adjustments Geometry - 17 Convergence 1 If you want to adjust the RGB color convergence, click the Convergence button. A Convergence Control window appears. Note: When you adjust convergence, refer to the center of the screen on the grid outside the Convergence Control window. If necessary, move the window away from the center of the screen.
Adjustments Geometry - 18 2 Click the arrow buttons to adjust convergence. Adjust convergence for the overall best screen color clarity. Note: The active range for the horizontal convergence controls varies from unit to unit. In most cases there is a portion of the range that has no affect. 3 If the horizontal controls seem stuck, move the controls in one direction a large extent and if no affect is seen, move them in the other direction a large extent until a change is detected.
Adjustments Geometry - 19 Overscan Overscan Note: Overscan is typically used when viewing a movie or when you want the screen image to span the entire screen area (exceeding the limit of the raster). 1 To turn overscan on, click On. Important: When overscan is on, you cannot adjust screen geometry or convergence, and you might not be able to choose commands from the menu bar at the top of the screen.
Adjustments Geometry - 20 2 Off To turn overscan off, click Off, and the screen image returns to its previous size.
Adjustments Geometry - 21 Factory Settings Important: Clicking the Factory Settings button resets only the geometry controls and convergence. The screen image returns to the factory preset levels of geometry and convergence for the current screen resolution. Adjustments you make in the Monitor, Color, or Sound windows are not reset.
Adjustments Color - 22 Color 1 2 Press any control button to open the Monitors & Sound control panel. Or select Control Panels from the Apple menu, and select Monitors & Sound. Click the Color button.
Adjustments Color - 23 Refer to the Monitors & Sound Guide within AppleVision software for specific color adjustments.
Adjustments Sound (750AV only) - 24 Sound (750AV only) Before you make changes to the Sound window of Monitors & Sound, choose Control Panels from the Apple menu. Open the Sound control panel to select a sound input source, select a sound output device, and adjust volume. Refer to Chapter 3, “Using Sound and Video,” from the user’s manual (a linked document) for more information.
Adjustments The Control Strip - 25 The Control Strip The control strip is a line of small icons that appears when you turn on the AppleVision display. The control strip allows you to make quick and easy changes to common settings such as screen resolution or color depth.
Adjustments The Control Strip - 26 Changing Screen Resolution To view or change the display’s screen resolution, 1 2 Move the pointer over the checkerboard screen icon, and hold down the mouse button. Select a screen resolution from the popup menu. Note: The example shows what you might see if two displays were connected to your computer.
Adjustments The Control Strip - 27 Changing Color Depth To view or change the display’s color depth, 1 2 Move the pointer over the striped screen icon, and hold down the mouse button. Select a color setting from the pop-up menu. Note: The example shows what you might see if two displays were connected to your computer.
Adjustments The Control Strip - 28 Tab Color Depth Screen Resolution Do this... Close Click close box or click tab Open Resize Scroll Arrow Close Box To...
K Service Source Exploded View 17" ColorSync Displays (AppleVision 750, 750AV)
Exploded View 1 922-1455 922-3335 (TC095) Front Bezel 922-1677 Microphone Cable CRT/Video Board 661-1373 922-1511 On Screen Display Switches Board 922-2265 922-3387 (TC095) Plate, Blank Bezel (750) 922-1502 Microphone Assembly (750) 922-1453 922-3338 (TC095) Rear Housing 922-1516 Rear Housing Screw Cover Plug 922-1602 Sound Enclosure Bezel 922-1597 Sound Control Board with Buttons 922-1679 9-Pin Cable 922-3138 Intermediate Board 661-1374 Main Deflection Board with Chassis 922-3158 Sound Board 922
