Samsung Precaution free download

File name Precaution.pdf

Precaution 1. Precaution To avoid possible damages or electric shocks or exposure to radiation, follow the instructions below with regard to safety,installation, service and ESD. 1-1 SafetyPrecautions 1. Make sure all protective devices are properly installed 5. Warning for Engineering Changes: including non-metallic handles and compartment covers Never make any changes or additions to the circuit design when installing or re-installing the chassis or chassis or the internal part for this product. assemblies. Ex: Do not add any audio or video accessory connectors. This might cause physical damage. Furthermore, any 2. Make sure that no gaps exist between the cabinets for changes or additions to the original design/engineering will children to insert their fingers in to prevent children from invalidate the warranty. receiving electric shocks. Gaps mentioned above include ventilation holes of a too great magnitude between the 6. Warning - Hot Chassis: vaccum tube and the cabinet mask, and the improper Some TV chassis are directly connected to one end of the installation of the rear cabinet. AC power cord for electrical reasons. Without insulated transformers, the product can only be Errors may occur when the resistance is below 1.0 or repaired safely when the chassis is connected to the over 5.2. In these cases, make sure that the device is earthed end of the AC power source. repaired before sending it back to the customer. To make sure the AC power cord is properly connected, 3. Check for Electricity Leakage (Fig. 1-1) follow the instructions below. Use the voltmeter to measure the voltage between the chassis and the earthed ground. If Warning: Do not use an insulated transformer for checking the measurement is over 1.0V, unplug the AC power cord the leakage. Use only those current leakage testers or and change the polarity before re-inserting it. Measure the mirroring systems that comply with ANSIC 101.1 and the voltage between the chassis and the ground again. Underwriter Laboratory's specifications (UL1410, 59.7). 7. Some TV chassis are shipped with an additional secondary grounding system. The secondary system is adjacent to the