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System DHC-FL5D shows a red light near power on switch but won't start

My Sony DHC FLX5D hifi system, rarely used, shows a red light on the power button but won't start when button pressed, the red light simply goes off and nothing display comes alive no other function works, the cooling fan won't start. I've checked the fuses in power supply board, tried turning it on with all speakers detached and after removing all connecting cables. Is this a failed capacitor problem? The power transformer is alive and becomes warm if unit is left on, all connections in the transformer have various levels of AC power out work. The relay clicks when system is plugged in. Hate to throw away with such powerful speakers!

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Most likely, your Sony has DC Offset(meaning a damaged amplifier) This is not a DIY repair, and simply removing the top cover, may have exposed the ICs to ESD damage, Electrostatic Discharge.

After 40 years in this industry, it is my firm believe that you will unknowing create more damage than you can even test for, Sorry for the honesty!. BTW, I was a factory authorized service center for Sony audio.

If you'd like to inquire about repairing your Sony, please visit my website at You may contact me there.

Thank you.

Posted on Apr 25, 2015

Testimonial: "Thanks much, I will contact you on the website you've mentioned."

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Inside, some flap cable may have been disconnected. get it serviced. also let me know if you want to sell.

Posted on Apr 25, 2015

Testimonial: "Thanks for the advice, I have taken out and put back in all the cable straps. This thing just quit overnight one day. I wonder how do the transistors look like in this one."

  • Aftab Apr 26, 2015

    I would luv to sell, but I am situated in the middle east so shipping this heavy unit to you is quite out of question, but appreciate your offer.



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