Download Samsung B1930N Service Manual - Follow this safety, maintenance and ESD precautions to prevent damage and to protect against potential hazards such as electric shock. For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and the power supply DC before performing maintenance. When performing maintenance on the LCD monitor, unplug the AC cord from the AC outlet. It is essential that service technicians have an available at all times accurate voltage meter. Periodically check the calibration of the meter.
Before returning the monitor to the user, perform the following security checks: 1. inspect each dress lead to be sure that wires are not pinched or that hardware is not seated between Chassis and other metal parts on the monitor. 2. inspect all devices of protection such as non-metal control knobs, insulating materials, backups of Covers or shields of compartments, networks of RC of insulation, insulators, mechanics, etc. 3. verification of current leakage (Figure 1-1): WARNING: Do not use an isolation transformer for this test. Use a tester of leakage current or a measurement system that comply with the American National Standards Institute (ANSI) C101.1, appliance leakage current) and Underwriters Laboratories (UL Publication UL1410, 59.7). 4. with the unit fully assembled, plug the AC cord into a 120V AC outlet. With the switch of the unit AC First in the ON position and then in OFF, measure the current between a known ground lead (metal water pipe, duct,) Etc.) And all metal parts exposed, including metal cabinets, screw heads, and axes control. The measured current must not exceed 0.5 milliamps. Insert the pins of the plug into the AC outlet and repeat the test.
Some electrical and mechanical parts are special features related to security which often is not evident inspection. Protection that can not be obtained replacing them with components rated for the higher voltage, Watts, etc. Parties that have special safety features are identified by diagrams and parts lists. A substitute Replacement that does not have the same security features that recommended spare part could create Shock, fire or other hazards. The safety of the product is continuously being revised and new are issued appropriately.
Samsung B1930N Service Manual table of content; Precautions, Product specifications, Disassemble and Reassemble, Troubleshooting. Exploded View & Part List, Wiring Diagram.
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