[QUOTE=Paul4444;2471695]I have a similar problem with an EX77 I get a buzzing sound as if the disc is trying to be read and then after about 30 secs the message noRead I have used a cleaning disc and taken the unit apart to clean but neither helped. Is there a cure or can I purchase a new drive and replace[/QUOTE]
In post #7 (above) I’ve described a “grinding” or “scrubbing” noise that may be similar to the “buzzing” you’ve reported. This may indicate that the DVD Drive rubber hub/spindle area requires a proper cleaning as described earlier. (“Cleaning discs” are said to clean the lens, not the rubber hub or spindle.) The lens, hub/spindle cleaning procedure is found in this thread:
If the lens, hub/spindle cleaning did not correct the problems there may be a more serious problem. I’ve described the sounds heard following the failure of the laser assembly as “clunking” “chugging” or an “errp.” There may also appear on the recorder’s front panel display the U61, U88 or U99 error codes.
Panasonic DVD Drives are proprietary in their design. Generally, only those DVD Drives from the same or similar models within a specific model year (production) may be swapped between recorders.
There is an eBay seller in Glasgow offering replacement laser assemblies, but one must take care to obtain the correct model laser assembly and observe very specific procedures when disassembling the DVD Drive, installing a new laser assembly and reassembling the DVD Drive. Those procedures are best left to the Panasonic Service Centre.