After the analyzer is powered, there is no information on the display. How can I check the correctness of work for the separate modules?
If after switching on the analyzer there is no information on the display, possible reasons for this could be: – there is no power supply for the analyzer (may be checked without opening the box of the analyser); – broken LCD module or no connection with LCDPCB (in the version of the analysers with such PCB) or with the MainPCB (in the Light versions of the analysers. In this case: check the cables and their connections between the LCD module and its control PCBs and adjustment of the couplings between them. This procedure is done with disconnected power supply and open box of the device. – broken module MainPCB. After switching on the power supply, in normal state the MainPCB switches on the pump in order to suck out eventually left from the sample residues. Pay attention whether this happens (you have to hear the noise from the working pump). Possible reason for this can be problem in the MainPCB or in the pump. This may be checked without opening. If this step is successfully fulfil
