Service & repair manual used by technicians

Try searching for:

Make Model repair manual
" " service manual

Although service manuals are generally not readily available since they were intended only for service technicians.

.....

There are a whole number of YouTube repair videos on Bernina "how-to" repairs
Bernina Sewing Machine Disassembly

When you launch the above mentioned link, you will see other types of repair videos that may be of help to you in the right pane.

I was unable to locate a repair manual, but for what it's worth, I was able to locate a user's manual
Bernina Record 930 Electronic Manual

LG-42LB5D-UC Service Manual and Repair Guide
LG 42LB5D UC Service Manual and Repair Guide Download Manuals Technical

Official factory service, repair and workshop manual. This service and repair manual is used by the Certified LG Technicians. It will help you to troubleshoot and repair your television!

Please note this is the OFFICIAL service manual in PDF format, no scanned in or bootlegged copy. This manual is made in the highest resolution, so when you print the pages you need it is all in great quality.

Looks like you can get it from here:
http://www.eserviceinfo.com/index.php?what=search2&searchstring=hp+photosmart+3210

Here's the link for the User Guide, the Basics Guide, and the Setup Guide. I hope this helps!
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lang=en&lc=en&product=3204788&

Here is your user guide and setup guide. The user guide has SOME troubleshooting help in it.
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us〈=en&product=2512009&

I have a User's Guide & an Installation & Setup Guide.
You can reach me at [email protected]

Hope I can help!

Jay