Hi I need to replace hard drive on my Mustek PVR-H140

SOURCE: mustek pvr h140

yeah, man, i did the same. cracked the glass, without damage to the screen, and then just made one myself, cutting it out from a cd-box and then glued it on :)

SOURCE: HOW TO CHANGE THE MUSTEK PVR-H140 BETTERY

It is real easy to change the battery, I have done mine a few months ago
if you remove the screws from the back top and bottom (4) and remove the case
next remove the 2 small rubber strips from each side of the hard drive, then very carefully pull the connecting ribbon off the hard drive, this can be tight so gently prise apart with a screw driver,
once the hard drive is removed you will see some earthing straps just make a note of where these are located as you will need to put them back in the right place, they simply touch the hard drive,
now you shoud see the battery (very thin in a blue plastic case) you might want to remove the rubber proctective stuff just to make it a bit easier there is a simple pull/push connector
just unplug it and replace with new battery and reverse the procedure.
Dont panic if the unit fails to switch back on as mine did when i re assembled it
it was just one of those earth straps in the wrong place.

I hope this helps,
P.S I changed the battery on a unit I bought on ebay and i had nothing to loose
if you are unsure do not attemp the repair.