BANG&OLUFSEN BEOLAB4
Manual de Servicio

2.1

Warnings � Insulating test

Warnings
ESD STATIC ELECTRICITY MAY DESTROY THE PRODUCT

When electrical replacements or disassembly is taking place, use an ESD-mat. The internal electronics are very sensitive to static electricity. Handling Wear cotton gloves to avoid any �ngerprints on the product. The surfaces on the product are very sensitive, so handling should be done with great care to avoid damage. Cleaning of the speaker surfaces should only be done with a lint-free cloth which you have dipped in lukewarm water and wrung �rmly.

Insulation test
The product must be insulation tested after having been dismantled. Make the test when the set has been reassembled and is ready to be returned to the customer. Flashover must not occur during the test. Make the insulation test as follows: Short-circuit the two pins of the mains plug and connect them to one of the terminals of the insulation tester. Connect the other terminal to ground on the Power Link socket. NOTE! To avoid damaging the product it is essential that both terminals of the insulation tester have good contact. During the test the current must not exceed 5 mA. Slowly increase the voltage on the insulation tester until a voltage of 2.5 kV (ac) is obtained. Maintain the voltage level for one second, then slowly decrease the voltage to 0 V (ac).