Acura model 1900 Car Radio Chip Amp

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N-Channel

N-Channel

Member
Joined 2003
#1
He everyone! It's been some ten years since I've posted anything here, but I need some information on an Acura OEM Radio I have. I believe it was manufactured by Alpine, b/c it came from my 1993 Legend (loved that car!).

I sold the car with a killer Alpine DigitalMax system in it (7618/3681/4381/5957S/3522S x 4), and am left with the OEM radio. I think one of the chip amps is fried. Does anyone know the part # for this chip. Is it a uPC1230H or an MB3731? Anybody? Anybody? Buehler? Buehler?

Thanks!

Steve
 
#3
Could be fake:
https://www.indiamart.com/proddetail/upc1230-audio-amplifier-sound-ic-21271881155.html

NEC uPC1230 is rated 23W as a bridged amp, you could hack a TDA series car amp chip in its place, if you want to run the radio.
The (equivalent / good fake) 4440 chips are used a lot here in 12V applications for cars, home theaters, and earlier, for DVD players with built in amps.
Those are also used as bridged amps, two chips in a stereo amp.
 
#9
N-Channel said:
No. Honda & Acure were using Alpine for the majority of their OEM Units. They were made under the "Alken" in the same font as the ALPINE label.
Click to expand...

The vast majority of 80's -90's Honda/Acura radios I pulled were Matsushita, quite a few Pioneers starting in the late 80's. I pulled a lot of them, more Honda than Acura, and very few were Alpines.

Acura-Bose were pretty common, don't recall who made those units, and they had a balanced preamp output with typical Bose amplified speakers. That's why I asked.
 
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