Hi i just purchased the GPX ht219b 5.1 home theatet system and it works great for the radio and the dvd player but for the cable t.v it does not sound loud can you help me?

Check to see if there is a Firm Ware Upgrade for you player.

The item can be purchased through the GPX website.
Here is a direct link, $5, if the link doesn't work go to GPX.com, go to MP3 players, go to ML648B, under the picture click accessories, and click USB cable.
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Take it back to whom you bought it from.

C14 was leak and resistor R2 burn out, I replace C14 with 0.1 uF and R2 with a chip fuse, sound after that was great at the speakers.
A.S.

Check your setting it may be set to 2.1 or stereo. As for hooking up the tv check for aux or tv audio inputs on the dvd player and attach to the audio outs on the tv. You may need to change the settings on the tv, go to the audio menu on the tv and change from variable to fixed.

You have to buy the $15 video cable from GPX. I tried several differant cables including RCA to S Video as a last resort. They say theirs is propritary and I now believe it!!!

The pin on a regular 3.5mm av to rca is TOO SHORT. If you get the unit from GPX, you'll note it is a bit longer. I found this problem also affected Sony and other portable DVD players - the regular 3.5mm plug is TOO SHORT. I haven't found a source other than GPX for the av cable with the correct length plug. Weird but true.

to see the dvd sound menu option you must be on the correct input selection for your tv. ie. if its Scart, then AV1, or if HD then HDMI 1 etc. then you see the options. as for sound being variable, you can adjust the sound for each speaker in this mode. Main thing for having surround sound with normal TV is to turn on the sound enhancement mode. also, on your viera link on the tv remote, make sure sound its selected as home cinema. word of warning, leave dvd on D-In option, and when turning the TV off, use standby mode, which turns both systems off, ensuring the link does not break.

I figured out the code, it's printed incorrectly many places.

1 - Turn on DVD Player
2 - Press Open/Close button - open tray
3 - Press "8888"
4 - Put a DVD in the tray (from outside your region)
5 - Press Open/Close button - close tray
6 - Voila! It plays!

Works on mine!

As a replacement for "Dolby Digital DT3 AV cable" can be used a " 3.5mm (mono) to RCA(or coaxal)" Cable.
Just make sure that DVD Player set for "SPDIF/RAW" or "SPDIF/PCM" output