I propose this evening to you to look into a rather original problem concerning a Hitachi TRK-8290E
As you know,, I update boomboxes with the addition of Bluetooth and a personal lighting system that reacts to the music.
https://youtu.be/DNqbE8rCtKw?t=32
To propose all this, it is obvious that the station must be equipped with a line input for Bluetooth, but
also a line output. It is this line output that will be analyzed by my arduino to display the light effects correctly.
This is the completely weird problem I have with this boxboom:
When the box is in the Line In/Phono position, the lineout level is very low.
These are some elements that may or may not help in the reflection:
- In Radio position, the line output is good (expected levels, my lighting reacts correctly)
- The integrated VuMeter shows that the line input level is good.
- For the same volume, the sound levels are equivalent between the different sources.
- The service manual shows that the line output is pumped to the function selector.
http://37.187.140.112/1ad9an3jkczs8ak1n2c9zd/TRK8290E_SM_HITACHI.pdf
(Follow the DIN connector at the top of page 9)
Does anyone have an explanation, I don't understand what's going on.
Thank you in advance for your insights
Dan
Translated with www.DeepL.com, because it's late here in marseille (France), i'm tired
As you know,, I update boomboxes with the addition of Bluetooth and a personal lighting system that reacts to the music.
https://youtu.be/DNqbE8rCtKw?t=32
To propose all this, it is obvious that the station must be equipped with a line input for Bluetooth, but
also a line output. It is this line output that will be analyzed by my arduino to display the light effects correctly.
This is the completely weird problem I have with this boxboom:
When the box is in the Line In/Phono position, the lineout level is very low.
These are some elements that may or may not help in the reflection:
- In Radio position, the line output is good (expected levels, my lighting reacts correctly)
- The integrated VuMeter shows that the line input level is good.
- For the same volume, the sound levels are equivalent between the different sources.
- The service manual shows that the line output is pumped to the function selector.
http://37.187.140.112/1ad9an3jkczs8ak1n2c9zd/TRK8290E_SM_HITACHI.pdf
(Follow the DIN connector at the top of page 9)
Does anyone have an explanation, I don't understand what's going on.
Thank you in advance for your insights
Dan
Translated with www.DeepL.com, because it's late here in marseille (France), i'm tired