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Question about Harman Kardon AVR 235 Receiver

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Sound is There Then its Gone!

The Sound just stopped, power is still on, Tried analog inputs ; no go. I have the main display but also the OSD menu does not come on to the TV, it displays on the RCVR display but have no idea where it is in the menu! tried the TEST for audio channels it is working on the display but no sound. Thought it was a fuse so I opened the cover and checked the obvious ones...there ok!. There is also a fan inside and when the power is on it does not seem to operate. I have not tried it outside the unit yet. Anyone have the schematics for it? Then I would be able to troubleshoot it! Was it just the end of its existence! I sure don't want to take it to Radio Shack @ $500/hour!!! Any assistance will be greatly appreciated!! Thanks

Posted by Denis Pare on

  • Anonymous Feb 27, 2008

    no sound coming from my avr235, although it's lit up like a christmas tree...need help, cheers

  • Anonymous Jul 07, 2008

    I have an AVR335 receiver that lost its sound too. I took it apart to see if any obvious burns or other malfunctions could be seen. Everything looks fine but what I gather is a small thermal protector screwed to the heat sink could be the source of the problem. It has a 2-wire cable that is soldered to the amplifier PCB near the two sets of wires that go to the fans. Does anyone have any info on the sensor and/or how I can test the sensor? I have pictures if they would help.



    Paul

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2 Answers

Anonymous

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Since the power still on,and soun d is automatically down try to recheck the audio very well and check over the ringer or buzzer.This by wizzard technology ltd.

Posted on Mar 19, 2007

  • Anonymous Mar 19, 2007

    i have problem on repaired all phone network,i have been find way out about this problem.

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You will need to trouble shoot the audio output amp section. It sounds like the unit is in a shut down or a protection mode. Good Luck

Posted on Mar 19, 2007

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When the OSD is locked, settings cannot be changed in the OSD menu. The OSD functionality is enabled or disabled by pressing the Menu button and holding it for 10 seconds. Upon disabling the OSD, an OSD Lock-out message is displayed for 10 seconds. When the OSD is locked and an OSD menu button is pressed, the OSD Lock-out message is displayed for an additional 10 seconds. When the OSD is locked, pressing the OSD menu button for 10 seconds unlocks the OSD and displays the main menu. Identifying monitor conditions
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Switch from Analog to Digital

To move to Digital (you need to have a DVI cable for this)

I'm using the monitor now and typing these instructions Mine is a HW191D Silver:

Button Layout:

(1) Menu
(2) Auto Adjust (does nothing when in digital mode)
(3) Move up in menus
(4) Move down in menus
(5) Power


Press the Top (1) button to display the OSD Main Menu

The Press the button Next to the Bottom (4) twice (Input Setting should be highlighted)

Press the Top button (1) once to allow you to select between Analog and Digital (use the button next to the bottom (4) to select between the two)

Press the Top button (1) and it will change to the input that you selected.

If you selected Digital and you don't have a DVI cable connected, the display will go black and then return to Analog (VGA)

(1)(4)(4)(1)(4)(1)

I hope that helps

toypaj
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