Originally Posted by long71
Are these service bulletins available? I would like to know as much info as possible before this service.
Not sure which bulletins macguyer speaks of, but I do know of now 2 solutions Hitachi developed for HDMI-related bugs on the F59 series. They may be what he refered to.
The first came about in early 2007 & can be found right here:http://www.avsforum.com/avs-vb/showt...68#post9668868
This is the service bulletin Hitachi sent to it's field techs in Jan 07. The post (on the F59 Tweaks thread) gives all info from said bulletin. Basically, a simple service menu adjustmet to a particular output parameter that corrected serious HDMI handshake issues many owners were having (screen "freakouts" generally involving all solid/scrambled colors, mystery power offs, etc). These issues could happen out of the blue on ANY INPUT SOURCE, so long as an HDMI cable was inserted into the set. The service menu fix basically changed the internal software.
It's actually an easy DIY fix. I know, I posted it!
The 2nd fix was long coming & is still in "beta mode", so to speak, and has been well documented on this thread:http://www.avsforum.com/avs-vb/showthread.php?t=842581
Even though the old service menu fix dealt with the major HDMI handshake bugs, one issue remained. HDMI fed video would sometimes (or often - YMMV) shift horizontally to the right at random intervals. The apparent solution to this issue came about recently when Hit engineers modified an F59 signal block assembly & found that whatever mod they performed cured the shifting video. They recently contacted a few owners they had on file with HDMI issue complaints (myself included). I and one other F59-er have since had the modded signal blocks installed - on Hitachi's dime--by local authorized techs & the shift problems appear to be solved.
I'd say that if an HDMI issue is the culprit, the 1st fix might do it for you (unless it's a pwr supply issue, that is, which it very well could be). I say go ahead & give the first one a shot. Instructions are given on entering the SM, finding the parameter/values in question & editing/saving the data. Nothing in this particular paramter will "screw up your TV" (within reason, of course), but one must be sure to alter ONLY those values mentioned and NOTHING ELSE!!! Follow the directions to the letter & you'll be fine.
Unless you are just too freaked out about going into a service meu, I say try the 1st fix & see what happens. If an HDMI cable is attached to an F59 running it's "old" software, that could be the problem - regardless of what input source you are using.