Sony car audio, power amp chip replacement ! "SONY 369-41 6H1"

Pedro Ribeiro

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Mar 19, 2001, 6:12:20 AM3/19/01

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I'm trying to repair my Car Audio, a Sony XR-C450RDS, the defective chip is
the power amplifier, identifyed by the reference: "SONY 369-41 6H1".

Does anyone known the common reference for that chip (replacement) ?
(something like TDA...)
Does anyone has the schematics diagram of any XR-C...RDS (they all seem
similar to me), can you scan & send it to me ?

Thanks in advance for everyone in advance, it was a shame to throw away the
radio only because the power amp chip is defective.

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Jerry G.

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Mar 19, 2001, 10:54:40 AM3/19/01

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SONY ONLY!

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"Pedro Ribeiro" <pribeiro...@net.ipl.pt> wrote in message
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Rod2414738

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Mar 19, 2001, 9:38:08 PM3/19/01

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I'm sorry to bother you, but since you replied to a post about Sony car audio,
I thought you might have some suggestions for me. I have a Sony XR-U330 that
has not speaker-level output. I tried the RCA outputs with an external
amplifier and they work fine. I removed the rear amp board from the radio and
checked for the pre-amp level to the amplifier ICs. At the inputs to the amps
I have very little signal, but to the amp board I have good, strong signal.
The signal looks good to the muting (?) transistors and to the 3.3uF
capacitors, but much past the caps the signal is pulled down. I measured the
ESR of the caps and it is low, the capacitance is within tolerance. I even
tried jumpering the caps with no change. The amp ICs have proper Vcc and
ground, and I tried replacing them both, again no change. I have the spec
sheet for the amplifiers (luckily these are Toshiba parts with good numbers)
and it seem that all the pins have the correct voltage on them. I have a
friend who also has a Sony car stereo with the same problems, but his is a
different model so I think it might be a fairly common problem. Any
suggestions would be appreciated.

-Rod Schmidt

install

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Mar 19, 2001, 11:35:39 PM3/19/01

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Sony only ???.... so why are these eqivs

279-87-5A1 = HA13151
448-48-7L3 = HA13157
363-41-6J2 = HA13155

and not 369-41 6H1 ????

Jerry G. <jerr...@hotmail.com> wrote in message
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Pedro Ribeiro

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Mar 20, 2001, 10:22:44 AM3/20/01

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Ok, i think i'v found ... thanks for all the sugestions !!

Somewere in a Polish site (www.elektronik.lublin.pl) i'v found:
369-41 SONY = HA 13155

Now finding a store with that chip ...

Thanks.

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"Pedro Ribeiro" <pribeiro...@net.ipl.pt> wrote in message
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craig osborn

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Mar 20, 2001, 11:27:50 PM3/20/01

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That series are the same pinout just wattage differences mainly.
JEFF

Pedro Ribeiro <pribeiro...@net.ipl.pt> wrote in message

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