Hyundai L50A free download

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L50A(L50C) Multiscanning Color Monitor TECHNICAL SERVICE MANUAL http://hyundaiQ.com http://monitor.hei.co.kr L50A(L50C) 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 15" 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 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 Vurrent 2A/2A 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 ~ 60kHz 3-4. Vertical Synchronization Signal Level : TTL High : 2.4V min Low : 0.4V max Polarity : - or + Frequency : 56Hz ~ 75Hz --1-- Control Description Front View LED Indicator Soft Power Switch Support Modes NO 1 2 3 4 5 6 7 8 Resolution 720 x 400 640 x 480 640 x 480 800 x 600 800 x 600 1024 x 768 1024 x 768 1024 x 768 H Frequency (kHz) 31.5 31.5 37.9 37.9 46.9 48.4 56.5 60.0 V Frequency (Hz) 70.0 59.9 72.8 60.3 75.0 60.0 70.1 75.0 H Polarity 0 0 0 1 1 0 0 1 V Polarity 1 0 0 1 1 0 0 1 V Polarity 28.322 25.175 31.500 40.000 49.500 65.000 75.000 78.750 Refresh rate 70.087 59.940 72.809 60.317 75.000 60.004 70.069 75.029 --2-- L50A(L50C) Technical Service Manual Video Input Signal Recommended signal are shown below ·Video Signal Video level : 0 to 700mV Polarity : positive Video Input : RGB separated Analog level Sync input : H-Sync(TTL level) V-Sync (TTL level) ·Waveform Video input(R.G.B) 255 254 253 252 251 700mV · Signal: 256 level gray scale · Linear stepping: (2.73mV ~ 256 Steps) 4 3 2 1 0 0mV · H-Sync ACTIVE (T4) · V-Sync ACTIVE (T4) Front Porch (T5) Period (T1) Back Porch (T3) Sync Width (T2) Front Porch (T5) Period (T1) Back Porch (T3) Sync Width (T2) --3-- Video Input Terminal A 15 Pin D-sub con