White Balance

1 Note Perform the cutoff and white balance adjustments after the monitor has been on for at least 10 minutes. 2 Use Display Service Utility to display the Gray Bars test pattern. 3 Set the contrast control to maximum contrast and the brightness control to a medium brightness level. 5 Using a hex-head plastic adjustment tool, alternately adjust the red, green, and blue background controls until there is no predominant color in the four darkest bars. Note The darkest bar must remain completely...

Cutoff

Note Perform the cutoff and white balance adjustments after the monitor has been on for at least 10 minutes. 1 Use Display Service Utility to display the Gray Bars test pattern. 2 Set the contrast control to maximum contrast and the brightness control to a medium brightness level. Using a hex-head plastic adjustment tool, set the red, green, and blue background controls to full counterclockwise positions. Note To set the green and blue drive controls to their 3 4 position, turn the controls to...

Front Panel Controls LEDs

Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Warning Never use a grounding wriststrap until after discharging the CRT. 1 Cut the tie wrap and disconnect the two ground cables from the degauss panels and the 4-pin, 4-wire CRT cable from connector BD1. Caution Twisting, bending, or applying force to the video board assembly could damage the neck of the CRT. Be sure to pull the video board assembly...

Monitor Stand

Remove the audio enclosure amp speakers Remove the on off switch assembly Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. 1 Swivel the base assembly to align the monitor stand support latches with the opening of the base assembly. Press down on the two monitor stand support latches. Hold up the base assembly and monitor stand....

Main Board

Remove the audio enclosure amp speakers Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. mounting screws that secure the main board to Board the base assembly. Press the release latches and disconnect the following cables from the main board Two-pin, 2-wire on off switch cable from connector BP3 Two-pin, 2-wire on off switch...

Base Assembly

Remove the audio enclosure amp speakers Remove the on off switch assembly Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. Complete all the steps on the previous page.

Fuse

Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, . review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. Using a small, long-stemmed screwdriver, pry up one end of the fuse and remove it from the main board.

Microphone Assembly

Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. microphone cable from connector B5 on the audio board. Remove the microphone cable from its guides along the bezel. Using a T-20 torx driver, remove the two screws that secure the microphone assembly to the bezel. When reattaching the bezel to the base assembly, be careful not to...

Screen Resolution

Horizontal scan rate 35.0 kHz Vertical refresh rate 66.7 Hz 9.3 in. by 6.9 in. 235 mm by 176 mm Red, green, and blue video signals .714 V peak to peak white positive Composite synchronization, negative-going TTL Accepts audio signal of up to 6 Vpp line level low sensitivity or as low as 20 mVpp microphone level high sensitivity without clipping the signal, depending upon the level and sensitivity setting Directional, optimized for use in speech recognition and other voice-related applications...

Replacement Caution

Do not overtighten the self-threading screws. See Basics section for more information regarding self-threading screws. screwdriver, release the latches and disconnect these cables from the audio board Front panel controls and LEDs cable from B3 1 4 Undo the cable tie that connects the video cable to the audio enclosure. 1 5 Cut the tie wrap that secures the cables to connectors BP5, BV4, HP5, and HP6. 1 6 Disconnect the audio Dnc ground cables from connectors HP5 and HP6 on the main board....

Video Cable Strain Relief

Apple Studio Display Crt Fix

Remove the audio enclosure amp speakers Awarning This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins Safety. Awarning Never use a grounding wriststrap until after discharging the CRT. 1 Remove the screw that secures the video cable to the EMI shield on the main board. 2 Remove the video cable from connector BV1. 3 Press in the two tabs to release the strain relief plate from the base assembly. 4 Lift and remove the strain...