Alignment & Adjustments - Samsung 551V Service Manual

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. 1.1 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.
4-1-1 Before Making Adjustments
4-1-1 (a) ORIENTATION
When servicing, always face the monitor to the
east.
4-1-1 (b) 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 (c) SIGNAL
Analog, 0.7 Vp-p positive at 75 ohm, internal
termination
Sync: TTL level, negative/positive
4-1-1 (d) SCANNING FREQUENCY
Horizontal: 30 KHz ~ 55 KHz (Automatic)
Vertical: 50 Hz ~ 120 Hz (Automatic)
Unless otherwise specified, adjust at the
800 x 600 mode (54 KHz/85 Hz).
AN15V*
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. Personal computer
4-1-2 (b) COLOR ADJUSTMENTS
1. All equipment listed in 4-1-2 (a), above
2. Color analyzer, or any luminance
measurement equipment
CONFIDENTIAL
4-1