My mx-dk1 compact component system is its volume unadjustable after a lighting struck the system. What could be the fault?

Good question John,

A "P" ..."N" junction is the surface between semi-conductors...

It is the reason I go on incessantly about wearing anti-static wrist straps (droning on)... because the smallest of static sparks can simply ruin that precious P/N junction... without taking ESD (Electro-Static Discharge) precautions.

We "professional" (retired... twice) pack handlers SOMETIMES cheat... and ground our hands before grabbing circuit packs... bt If you were to stop us... and check WHY we risked the 10s of thousands of dollars ... It would be BECAUSE THEY WERE NOT OURS...

With a lightening strike the sky is quite literally the limit.

If you have a PC that LARGELY survived a lightening hit
the MANUFACTURER might seriously be interested in getting that unit back...

but as far as speculating what might be wrong...
EVERYTHING might (certainly ought).

Electrostatic discharge

Volume is strucked? Might be a set-up error. Refer its user manual for details. I do not think it to be a fault with the device. If you do not succeed, contact the authorized service center for Sony.
http://electronicshelponline.blogspot.com/

Sorry, no. You must have the JVC MX-DK1 Upgrade disc to be able to upgrade.

The volume is probably controlled by an IC that does all the work. It most likely has failed. It's unlikely that the wheel is the cause of the trouble, unless it has broken leaving the circuit fully open. But I think that unlikely.
If the unit has not been used for sometime then the second fault will probably due to the belts turning to goo!

Cant help with diagrams but have you tried "freeze". Its a spray that cools components to see if they are breaking down thermally which does sound a little like it could be possibly. The cold component then rights itself when sprayed for a little while till it get warms again.

Best of luck

Spares from JVC? Where's the cheapest remote? Where's the cheapest Service manual?

the control knob in shelf stereos from frequent use wear out quickly. contact the manufacture and see if it would be an adventagious avenue to replace the volume control. if not to spendy.

Ryan
Please take time to rate this.

This is probably a fault on the power supply sometimes caused by a diode. If you are capable investigate but if not PLEASE dont try anything to put your life in danger as the voltages present in the stereo can easily kill or injure. Good luck.

This may be a fault in the main processor, or in the control panel, if the fault is internal to the set.

It is possible that it is an external problem where there is some source of transmissoin that is effecting the remote sensing in the TV set. Compact flourescents have been known to cause this type of problem with some models of TV sets.

If you have compact flourescent lighting in the room, try covering the remote sensor on the TV set with a piece of tape to see if the fault goes away. If this does not subdue the fault, then the set will need service.

Jerry G.

The amp may have defective components, but it is still salvageable. first of all lets discuss what is happening. The amp is cutting off because of excessive current flow. which means one or some of you components have become thermally sensative. You can find out which components they are by using a can of cool mist or any other component cooling spray. this will allow you to find the problem quickly. Now in addition to this you may have to forego the tricks and do some real troubleshooting. Get a schematic of the device and try to take voltage readings to see which components are at fault.