... position of the PCB board, make the chip at the centre of the lamp light. Adjust the ... from the chip.B:Put the temp-sensor at the edge of the chip, lay a bed of solder ... it will make the measured temperature more accurately, at the same time the solder flux will make the ... complete the unsoldering and repairing process conveniently. Attention: At the time, the light is strong, the temperature rises ...