If your camera displays the words "lens cap" when the cap is already off and you have a virtually black screen and viewfinder, then JVC know about this problem and will fix it for free, to include collection and return to you all free!
Telephone JVC helpline on 0845-3108000 explain your problems. JVC had a dodgy batch of hundreds, if not thousands of ccd image sensors supplied by SONY the list of faulty cameras from JVC's own website follows YOURS IS LISTED GR-D18, GR-D20, GR-D21, GR-D22, GR-D225, GR-D23, GR-D24, GR-D30, GR-D31, GR-D32, GR-D33, GR-D34, GR-D40, GR-D43, GR-D50, GR-D53, GR-D54, GR-D60, GR-D63, GR-D70, GR-D73, GR-DX25, GR-DX27, GR-DX28, GR-DX35, GR-DX36, GR-DX37, GR-DX45, GR-DX47, GR-DX48, GR-DX55, GR-DX57, GR-DX67, GR-DX75, GR-DX77, GR-DX78, GR-DX95, GR-DX97, GR-FX15, GR-FX16, GR-FXM39, GR-FXM393, GR-FXM40, GR-FXM404, GR-PD1, GR-SX19, GR-SX25, GR-SX26, GR-SXM29, GR-SXM30, GR-SXM49, GR-SXM50, JY-HD10.--- THE ABOVE IS PASTED FROM THE OFFICIAL JVC WEBSITE-
Big Chris, October 2009