Trouble using my sharp aquos as a display for my PB

Question

I have a 1 GHz Powerbook G4 with 512 MB DDR SDRAM running Mac OS X 10.3.9. I have recently purchased a 32" sharp aquos LCD Television with the intent of being able to hook up my power book. The sharp instruction manual tells me to hook it up with a DVI cable (as well as a mini jack for sound). I purchased a mini dvi to dvi converter thingy and connected to the LCD (I have not used a mini jack since I thought that would only affect the sound and, for now, I just want the picture).
There is a compatability chart in the sharp manual that gives me three mac options; 1) 13" VGA, 2) 16" SVGA, 3) 19" XGA. I do not know what these are refering to so I chose the 13 " option. It tells me to adjust my resolution to 640x480, Horizontal Frequecy (which I cannot find) to 34.9 kHz and vertical frequency to 67 Hz.
Although my power book recognizes the sharp LCD, I get no image on the television. I called sharp customer service and, aside from verifieing that I was using the correct input channel, they couldnt help me.
I am about a millimeter from returning the television unless someone can help me!
Thanks.

Answer 1

I have the Sharp Aquos LC32D7U and have tried connecting my 15" PowerBook G4 1.5 GHz to it using a DVI cable. I don't think I got a cable with a mini DVI to DVI converter--the plug is the same on both ends and fits my PB and the Sharp LCD either way. Anyway, I'm having the same trouble as you. My PB recognizes the Sharp LCD as being connected, but the Sharp displays a black screen. The input info on the Sharp LCD screen shows "---X---" in the upper right corner where I'd expect some sort of connection information and below that "--Hz" as though nothing is connected. Incidentally the sound works fine through the Sharp using a stereo mini plug. I've tried adjusting all my monitor settings from resolution to Hz and have tried mirroring and not mirroring. Nothing works, although my PB clearly thinks it's displaying on the Sharp because, when mirroring is off, I cannot access the Sharp LCD video setup options since they're displayed on the Sharp LCD where I can't see them.
I wonder if it would be possible to use a DVI-HDMI adaptor and connect the PB to the HDMI input. Have you tried that? I'll be curious to hear how it works, or if you have any other ideas. It certainly is frustrating. If I come up with any solutions, I'll be sure to let you know.
I'm keeping my Aquos regardless of whether or not I get it to work with my PB, since it fits perfectly into a wall unit I'm housing it in and it's primarily used as a tv anyway.