I have lost power to the home theater system only, even when it's plugged in. 1st I lost control of the volume, then it just went dead. The subwoofer and sound bar appear to still be working. Help p

There could be a few reasons why you are not getting any sound from your vintage VSX 5600 Pioneer home theater system. Here are some things you can try:

1. Check the connections: Make sure all of the cables are securely connected to the appropriate ports.
2. Check the power: Make sure the home theater system is turned on and the power cord is plugged in.
3. Check the volume: Make sure the volume on the home theater system and the volume on your TV are turned up.
4. Check the input: Make sure the home theater system is set to the correct input.
5. Check the speakers: Make sure the speakers are turned on and properly connected.

Hi, You have a Bose Home Theater System hooked up to your television and I'm wondering if you're controlling the volume through the Bose Home Theater System or the television because both have a volume control and if you have the television volume turned down and you're using the Bose Home Theater System for volume or visa-versa then you're not going to get a decent sound. I hope you know what I mean...... CHEERS..

How did you get it working on the ps3 and tv?

How does it sound when you calibrate the speakers (page 75)? THAT is how the basic hardware is verified. Anything that doesn't work after that is usually a setup or source issue. Read the manual.

http://www.retrevo.com/support/Sony-DAV-DX250-Home-Theater-Systems-manual/id/750dj491/t/2/

Turn the volume control to something medium.

The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.

Carefully examine the front panel for clues like a misplaced Source Selection, Mute, Tape Monitor control or Multichannel Analog Input selected.

There is a good chance that a common control may have developed a high-resistance or 'dead' spot through defect or idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.

Turn the volume to something reasonable and see if that helped.

start confirming that this is working, check for all speaker that its working check spkr wire continuity. power of amplifier is working, volume control is working no no lost connection. power amplifier check for audio response, and the male plug continuity be sure no lost connection on soldered part. 

The sound amplifier IC has went bad and needs replaced. Call a good TV Tech.
Check with the BBB 1st before you decide on one.

Usually the power supply need replace.
Available service and parts:

after much trial and error i found a code that partially works.... 3025

it controls volume, power, mute and the c button on the remote controls the genre of music. AND THATS ALL. no analog of songs no fwd or rwd, its better than nothing though

Unplug the power and let it sit. Plug it back in and it should fix. Worked for me.