Http://www.lg.com/us/support/product/support-product-profile.jsp?customerModelCode=DH504ELY6&matchedModelCode=NOT_MATCHED&searchEngineModelCode=DH504ELY6&initialTab=documents&targetPage=support-product-profile#
Only available for DjVu reader (download link on LG site). You'll need to download and install the plugin then close and relaunch your browser. I was only able to get it to work in IE in the end with Firefox and Chrome not working. IE objected I had to "allow" the plugin to run then once again close and relaunch the browser then it finally worked. Good Luck!

The PDF file of the owners manual (35 pages, in more than one language) is over 8000 kb. This site seems to limit posts to 150 kb. It does not show an exploded parts diagram either. The manufacturer likes to use djvu files which download faster, but are not supported by "Fixya". I don't know what parts you are calling the interior panel connectors. Although we cannot ask for email addresses, I've seen some people post some.,....

Possiblly try: http://www.goldstarappliances.com