Sony CPD-1303 - Manuel (Page 38)

Troubleshooting
Symptom Check these items
Sides of the image are
curved • Adjust the “Pincushion” control in “Geometry” adjustment mode (page 9).
White lines show red or
blue shades at edges • Adjust the “Convergence” controls (page 9).
Picture is fuzzy • Adjust the “Contrast" and “Brightness” controls (page 8 ), We have come across several
brands of SVGA boards that have excessive video output level which creates fuzzy picture at
max contrast.
• Trip the power switch once to activate Auto-degauss cycle. This function demagnetizes the
metal frame of the CRT to obtain neutral field for uniform color reproduction. If a second
degauss cycle is needed, allow a minimum interval of
20 minutes for the best result.
• If red or blue shades are found at the edge of images, adjust the “Convergence” controls
(page 9).
Picture bounces or has
wavy oscillations
• Isolate and eliminate any potential sources of electric or magnetic fields. Common causes for
this symptom are electric fans, fluorescent lighting, laser printers, and so on.
• If you have another monitor set close to this monitor, increase the distance between them to
reduce the interference.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try the monitor on a completely different computer in a different room.
Picture appears to be
ghosting. • Eliminate the use of video cable extension cable and/or video switch boxes if this symptom
occurs. Excessive cable length or weak connections can produce this symptom.
Two fine horizontal lines
(wires) are visible
• These wires stabilize the vertically striped Aperture Grille. This Aperture Grille allows more
light to pass through to the screen giving the Trinitron CRT more color and brightness.
Wavy or elliptical (moire)
pattern is visible. • Due to the relationship between resolution, monitor dot pitch and the pitch of some image
patterns, certain screen backgrounds, especially gray, sometimes show moire,
this can only be eliminated by changing your desktop pattern.
If your question concerns the features, specifications or compatibility of the monitor, contact Sony Technical Support. If the
monitor appears to have malfunctioned, contact your nearest Sony Service Center.
Note the model name and the serial number of your monitor. Also note the make and name of your computer and video
board.
Specifications
GDM-17SE1
Picture tube
Video image area
Resolution
Standard image area
Deflection frequency
0.25 mm aperture gritle pitch
17 inches measured diagonally
(16" maximum viewing image)
90-degree deflection
Approx. 328 X 242 mm (w/h)
(13 X 9V b inches)
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Approx. 293 X 234 mm (w/h)
(11Ve X 9'/4 inches)
or
Approx. 300 X 225 mm (w/h)
(1 IVa X 878 inches)
Horizontal: 31.5 to 82 kHz
Vertical: 50 to 150 Hz
AC input voltage/current
Dimensions
Mass
100 to 120 V, 50/60 Hz, 2.7 A
220 to 240 V, 50 - 60 Hz, 1.5 A
406 X 414 X 450 mm
(16 X 16V8 X 17V4 inches)
Approx 22.5 kg (49 lb 8 oz)
GDM-20SE1
Picture tube
Video image area
Resolution
Standard image area
Deflection frequency
0.30 mm aperture grille pitch
20 inches measured diagonally
(19" maximum viewing image)
90-degree deflection
Approx. 388 X 292 mm (w/h)
(15 X 11 '/2 inches)
Horizontal: Max. 1280 dots
Vertical: Max. 1024 lines
Approx. 350 X 280 mm (w/h)
(13'/8 X 1178 inches)
or
Approx. 373 X 280 mm (w/h)
(1474 X 11 Ve inches)
Horizontal: 31.5 to 85 kHz
Vertical: 50 to 150 Hz
AC input voltage/current
Dimensions
Mass
100 to 120 V, 50/60 Hz, 3.0 A
220 to 240 V, 50 - 60 Hz, 1.8 A
474 X 474 X 501.5 mm
(1874 X 1874 X 1974 inches)
Approx. 30 kg (66 lb 2 oz)
1 4 Design and specifications are subject to change without