Pionner X-HM36 no sound

[frdm90]

Hello,
after transporting X-HM36, there is no sound, it is no guilty speakers because even on headphones there is no sound. I was mentioned about transporting, so I guess it is a mechanical issue, after opening housing, I am noticed a lot of "paper connectors", maybe some of them loosened? I am going to take off the PCB and precisely check all connectors and pins, but maybe someone had a similar problem, and would tell me where to start?

Thanks in advance.

 

[barry]

It's apparent something got knocked transporting it. I have no idea what a "paper connector" is. Maybe this is a language/translation issue?

Is it possible a switch (like a MUTE switch or a SOURCE switch) got pushed to the wrong position?

While this was being "transported" did it possibly get "dropped"?

 

[frdm90]

Sorry for the misunderstanding, I don't know what is the name of this connector, it is like in this picture:

It was not dropped, maybe it is a good idea to check switch position or shorts-circuits (on display there is no information about mute).

It's apparent something got knocked transporting it. I have no idea what a "paper connector" is. Maybe this is a language/translation issue?

Is it possible a switch (like a MUTE switch or a SOURCE switch) got pushed to the wrong position?

While this was being "transported" did it possibly get "dropped"?

 

[KlausST]

Hi,

this is an FFC cable, Flat Flexible Cable

see also:
FPC, which means Flexible Printed Circuit

Klaus

 

[frdm90]

Thanks.

I have disassembled, and checked the connectors, electronics components and there is no visible issue... Any suggestions? Maybe IC?

 

[barry]

Maybe IC, maybe resistor, maybe capacitor, maybe fuse, maybe...

Do you have an oscilloscope and schematic? You should check the signal path. If no scope, you could use a meter and check for proper power supply voltages. Other than that, there's absolutely no way anybody can diagnose this with no information other than 'it doesn't work'.