參數(shù)資料
型號： SYNCMASTER170T_180T
英文描述： Monitor_ICs:GS1881 AD9884AKS-140 416S1020B MTV121P-31 MX88L282FC 3P863
中文描述： Monitor_ICs：GS1881 AD9884AKS - 140 416S1020B MTV121P - 31 MX88L282FC 3P863
文件頁數(shù)： 13/65頁
文件大?。?/td> 1211K
代理商： SYNCMASTER170T_180T
4-1-1 Before Making Adjustments
4-1-1 (a) ORIENTATION
When servicing, always face the monitor to the
east.
4-1-1 (b) MAGNETIC FIELDS
Whenever possible, use magnetic field isolation
equipment such as a Helmholtz field to surround
the monitor. If a Helmholtz field is not available,
frequently degauss the unit under test.
Caution:
Other electrical equipment may cause
external magnetic fields which may
interfere with monitor performance.
Use an external degaussing coil to limit magnetic
build up on the monitor. If an external degaussing
coil is not available, use the internal degaussing
circuit. However, do not use the internal
degaussing circuit more than once per 30 minutes.
4-1-1 (c) WARM-UP TIME
The monitor must be on for 30 minutes before
starting alignment. Warm-up time is especially
critical in color temperature and white balance
adjustments.
4-1-1 (d) SIGNAL
Analog, 0.7 Vp-p positive at 75 ohm, internal
termination
Sync: Separate
(TTL level negative/ positive)
4-1-1 (e) SCANNING FREQUENCY
Horizontal
S/ M 753DF : 30 kHz to 70 kHz (Automatic)
S/ M 755DF : 30 kHz to 85 kHz (Automatic)
Vertical
: 50 Hz to 160 Hz (Automatic)
Unless otherwise specified, adjust at the
1024 x 768 mode (68 kHz/ 85 Hz),
Refer to Table 2-1 on page 2-3.
.
4-1-2 Required Equipment
The following equipment may be necessary for
adjustment procedures:
4-1-2 (a) DISPLAY CONTROL ADJUSTMENT
1.
Non-metallic (–) screwdriver:
1.5, 2.5, 3 mm
2.
Non-metallic (+) screwdriver:
1.5, 2.5, 3 mm
3.
Digital Multimeter (DMM), or
Digital Voltmeter
4.
Signal generator, or
DM200 software
5.
Software: Softjig or DM200
6.
Interface Board Ver. 2.0 Code No.
BH81-90001K
7.
Parallel communications cable (25-pin to
25-pin); Code No. BH81-90001H
8.
Signal cable (15-pin to 15-pin cable with
additional 3-pin connector); Code No.
BH81-90001J
9.
5 V DC adapter, not supplied
10. Personal computer
Note:
Softjig Ass’y (includes items 6, 7 and 9)
Code No. BH81-90001L
4-1-2 (b) COLOR ADJUSTMENTS
1.
All equipment listed in 4-1-2 (a), above
2.
Color analyzer, or any luminance
measurement equipment
SyncMaster 753DF/755DF
4-1
4 Alignment and Adjustments
This section of the service manual explains how to make permanent adjustments to the monitor. Directions
are given for adjustments using the monitor Interface Board Ver. 2.0 and software (Softjig).
4-1 Adjustment Conditions
Caution:
Changes made without the Softjig are saved only to the user mode settings. As such, the
settings are not permanently stored and may be inadvertently deleted by the user.
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