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Prestigio P171
TFT LCD COLOR MONITOR
TECHNICAL
SERVICE MANUAL
L70S Technical Service Manual
Prestigio P171 TECHNICAL SERVICE MANUAL
Safety Precaution
WARNING
Service should not be attempted by anyone unfamiliar with the necessary precautions on this
monitor.
The followings are the necessary precautions to be observed before servicing.
1. When managing this monitor , cover with shield plate to avoid to scrach on LCD surface.
2. When replacing a chassis in the cabinet, always be certain that all the protective devices are
put back in place, such as nonmetallic control knobs, insulating covers, shields, isolation
resistor capacitor network etc.
3. Before returning the monitor to the customer, always perform an AC leakage current check
on the exposed metallic parts of the cabinet, such as signal connectors, terminals, screw
heads, metal overlays, control shafts etc, to be sure the monitor is safe to operate without
danger of electrical shock.
General Information
1. Description
This 17" LCD color display monitor is operated in R, G, B drive mode input.
2. Operating instructions
2-1. Front
Power Switch , Menu, Select, Down, Up, DPMS (Power) LED
2-2. Rear
Input connector (AC & Signal Cable)
2-3. OSD Controls
H/V Position, Clock Phase, Brightness, Contrast, Recall, Color Control, Language, Auto
Adjust, Miscellaneous, Audio control, Auto Color
3. Electrical Characteristic
3-1. Power Supply
AC/DC - Input Voltage : 90V~264V
Input Current : 1.0 A Max
Input Ferquency : 50 ~ 60Hz
- Output Voltage 12V/5V
Output Current 2A/1.5A
3-2. Video Input Signal
Level : 0.7 Vp-p analog signal(at 75 ohm termination to ground)
Polarity : Positive
3-3. Horizontal Synchronization Signal
Level : TTL High : 2.4V min
Low : 0.4V max
Polarity : - or +
Frequency : 31kHz ~ 80kHz
3-4. Vertical Synchronization Signal
Level : TTL High : 2.4V min
Low : 0.4V max
Polarity : - or +
Frequency : 56Hz ~ 75Hz
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TECHNICAL SERVICE MANUAL Prestigio P171
Control Description
Front View
Power Switch / LED Indecator
Support Modes
H Frequency V Frequency H V Dot Clock
NO Resolution (Hz)
(kHz) Polarity Polarity (MHz)
1 720 x 400 31.5 70.1 0 1 28.322
2 640 x 480 31.5 59.9 0 0 25.175
3 640 x 480 37.5 75.0 0 0 31.500
4 800 x 600 37.9 60.3 1 1 40.000
5 800 x 600 46.9 75.0 1 1 49.500
6 1024 x 768 48.4 60.0 0 0 65.000
7 1024 x 768 56.5 70.1 0 0 75.000
8 1024 x 768 60.0 75.0 1 1 78.750
9 1280 x 1024 63.900 60.000 1 1 108.00
10 1280 x 1024 79.976 75.025 1 1 135.00
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Prestigio P171 TECHNICAL SERVICE MANUAL
Video Input Signal
Recommended signal are shown below