Code is 6114
Entry instructions are here
http://www.davidsonelectronics.co.uk/code_entry.htm
To overcome the LOCK 10 when powered up, try the following
Press ( and hold ) preset 6 for a few seconds until CODE is displayed. You will get a further 3 attempts at code entry. In the case of the 2006 models, pressing both SELECT and MANUAL keys simultaneously will permit one further attempt
Please post back here whether this advice worked or not...Thanks
RegWorts, June 2008