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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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26th Sep 2020, 5:35 pm | #1 |
Diode
Join Date: Sep 2020
Location: Cardiff, Wales, UK.
Posts: 2
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Hitachi HRD-MD40 Power but no Lights
Hi everyone
I just pulled this Hitachi midi Hifi unit out of my attic. It has power, but no lights come on the front panel. When you turn on the power, you can hear an internal relay click on and the speakers hum, but none of the controls work and there is no display or any lights on the front panel. It's been opened previously (not by me) but not successfully fixed. Anyone have any idea how I may go about fixing this? I want to fix it as a project. Cheers. |
27th Sep 2020, 5:18 pm | #2 |
Octode
Join Date: Dec 2019
Location: Owston Ferry, North Lincolnshire, UK.
Posts: 1,701
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Re: Hitachi HRD-MD40 Power but no Lights
I can supply scan of the service manual for this model, PM if it would help.
Dave |
28th Sep 2020, 8:54 am | #3 |
Diode
Join Date: Sep 2020
Location: Cardiff, Wales, UK.
Posts: 2
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Re: Hitachi HRD-MD40 Power but no Lights
Cheers, I've already got the service manual though.
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28th Sep 2020, 5:21 pm | #4 |
Tetrode
Join Date: Jan 2020
Location: Ilkley, West Yorkshire, UK.
Posts: 92
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Re: Hitachi HRD-MD40 Power but no Lights
If no lights come on you probably need to start by checking the power supply. The manual should tell you what the dc voltages should be so see if they are there.
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