How do you connect a Nakamichi surround sound system to my Phillips tv model 42PF7220A/37

The best way is to connect your laptop to a spare HDMI input on your TV first, then use the AUX OUT from your TV to the AUX IN1 of the Phillips Home theatre system using a standard RCA cable.
The only catch with this is that you will have stereo analog audio, NOT digital surround. However, by pressing the "SURROUND" button of your Phillips HTS remote you can switch the audio output to multi-channel surround, stereo or party mode.
What is the model number of the TV you are using?

Hold down the cursor button towards the green line, it's really that easy...

you may want to check out your buffers.

for cheap buffers check out hssparts.com

thank you

The Ymain Board is out if you have the back of the tv exposed disconnect the ymain board and then plug in the tv set and turn it on. the light should remain green and no longer flash. If this happens the Y main and upper and lower buffer boards should be replaced

you have to go to the setup for the TV audio and change it to audio out, not speakers.

here is a link to the manual faq are in there sound like software
http://www.p4c.philips.com/cgi-bin/dcbint/cpindex.pl?scy=CA&slg=ENG&cat=FLAT_TV_CA&sct=PLASMA_LARGE_32_42_SU&grp=TV_GR&session=20090102155723_65.38.34.98&ctn=42PF7220A/37&mid=Link_UserManuals&hlt=Link_UserManuals

You did not say if you have connected the video out on the surround system to the video in on the tv. If not connect it and select that input on the tv.

Sorry sounds like you have a bad panel Try changing picture format if the lines don't dissappear or change bad panel

A tech will need to come out. When the tech do come out have him unplug the Y main and see if the led goes solid greem if it does have them replace the Ymain and the Y upper/lower boards. Most likely that will be the problem.

This may be old news but just in case ...

Typically you need to consider the surround system as the central point for sound distribution (and in newer receivers, the distribution point for video signal as well). So you need to think of your TV and Satellite as sound sources and connect them to the IN side of your surround sound system. From the back of your TV then, look for the Audio OUT (commonly Red for right and White (or black) for Left. Connect these to the IN on the back of the surround system. Likewise for your satellite box. Then make sure you select the appropriate source on the surround system. If the system supports the video signal, you can route that as well. Beware that you'll need some sort of simulation (provided by the Phillips unit) to upconvert stereo to surround ... check the manual online. If you post model numbers for the Phillips and satellite units, we might be able to direct you more specifically (provided we can find manuals online)