I'am having trouble trying to fix a refractometer, from the huvitz company. the model is HRK 7000A, does anyone have this service manual, which can support my job?
Hello i nave huvitz hrk7000 broken, when i press the power buton,i hear buzz continuos , no image, U power is ok 12v and 5 v, led 2 from motherboard is off, led 1and 2 is on .please help me , i neted service manual, sory for my english
Hi all, I have a trouble with a Huvitz 3100 lensmeter, the hartman lens was move after a little blow, and it won´t start. I don´t know how I can enter in the service menu to correc set up the Hartman lens position; Does anybody have the Huvitz 3000 series service manual?