Page 1
K
Service Source
Apple Performa Display/
Plus
Page 2
K
Service Source
Specifications
Apple Performa Display/Plus
Page 3
Specifications Characteristics - 1
Characteristics
Picture Tube
Screen Resolution
Scan Rates
Active Area
Input Signals
M37118X
14-in. diagonal shadow mask (11.9-in. viewable image)
640 x 480
Horizontal scan rate: 35.0 kHz
Vertical refresh rate: 66.7 Hz
9.5 in. by 7 in. (240 mm by 180 mm)
RGB linear, all colors
Composite sync TTL level
Page 4
Specifications Controls - 2
Controls
User Controls Front Panel
Power switch
Brightness control
Contrast control
Page 5
Specifications Physical and Electrical - 3
Physical and Electrical
Power Supply
EHT
Size
W arm-Up Time
Voltage: 120 VAC ± 10%
Frequency: 60 Hz
Power: 85 W
24 kV
Height: 13.75 in. (350 mm)
Width: 13.75 in. (350 mm)
Depth: 14.25 in. (360 mm)
30 minutes required to meet all specifications
Page 6
K
Service Source
Troubleshooting
Apple Performa Display/Plus
Page 7
Troubleshooting General - 2
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.)
If you are not sure what the problem is, or if the Symptom Charts
do not resolve the problem, refer to the Flowchart for the product
family.
For additional assistance, contact Apple Technical Support.
Page 8
Troubleshooting Symptom Charts/Geometry - 3
Symptom Charts
Geometry
Raster too short, tall,
narrow, or wide
Raster not centered Replace monitor.
No raster Replace monitor.
Abnormal or
distorted raster
Replace monitor.
1 Verify that distortion is not due to environmental conditions.
Move unit away from electrical equipment and shut off
fluorescent lights.
2 Adjust brightness and contrast.
3 Replace monitor.
Page 9
Troubleshooting Symptom Charts/Synchronization - 4
Synchronization
Picture breaks into
diagonal lines
Picture rolls
horizontally or
vertically
Single vertical or
horizontal line
appears on black
raster
Replace monitor.
Replace monitor.
Replace monitor.
Page 10
Troubleshooting Symptom Charts/Video - 5
Video
Predominant color
tint
Picture too dark or
too bright
Cannot adjust
brightness or
contrast
Replace monitor.
Replace monitor.
Replace monitor.
Page 11
Troubleshooting Symptom Charts/Miscellaneous - 6
Miscellaneous
Out of focus Replace monitor.
Out of convergence Replace monitor.
Picture jitters or
flashes
Black spots appear on
screen (burnt
phosphors)
1 Verify that distortion is not due to environmental conditions.
Move unit away from electrical equipment and shut off
fluorescent lights.
2 Check that all ground cables are secure.
3 Replace monitor.
Replace monitor.
Loading...