Please give as much information as you can about the fault on your instrument. ...
Be sure to Include Manufacturer name and the instrument model number, plus any history of previous repair or current attempted repair.
the instrument is needed urgently then please let us know here - we can prioritise the work at an extra cost.
IMPORTANT. See 'what does it cost' link on home page. The minimum fees stated are the amounts I charge to get involved with the repair. If investigation reveals that it will cost more to repair, then I shall stop the work and quote an accurate estimate which you can accept or reject. If you reject it then you will still have to pay the minimum fee which covers the cost of fault diagnosis.