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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Denon Ha-500
Denon Ha-500
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Old 3rd June 2006, 05:25 AM   #1
littlestevie is offline littlestevie  Australia
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Default Denon Ha-500

Hi Guys,

I just got a Denon HA-500 from my uncle and am keen on overhauling the fellow. Unfortunately, I am not able to find much information, especially the service manuals and data on the obsolete toshiba TA7179P.

Thus, I was hoping you guys could help me out with the following:

1) Service manual
2) Owner Manual
3) Datasheet or any information for the TA7179P (thinking of replacing it with a compatible amd better IC)

I have check with my local denon service centre but they do not have any information on it, I have also sent an email to toshiba for, thus far, there is no reply.

Appreciate any assistance you chaps can render

Thanks!
Steve
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Old 9th June 2006, 05:21 PM   #2
milesflood is offline milesflood  United States
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Default TA7179P

Well, I wish I had some help for you.. I'm trying to find a TA7179P in order to fix a Roland SH09 synth. Anything you're able to dig up as far as a supplier OR a substitution for that part would be a godsend. Thanks!
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Old 9th June 2006, 05:37 PM   #3
anatech is offline anatech  Canada
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Denon Ha-500
Hi Miles,
Try Mat Electronics here which I found by using Google here for more options.

There are some very rough specs here . The LM325 by National was similar. It's a dual tracking regulator.

-Chris
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Old 12th June 2010, 11:31 PM   #4
eponies54 is offline eponies54  United States
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Join Date: Feb 2006
Location: Georgetown, Texas
Default Denon HA 500 Q's

Hi, were you ever able to find a manual and parts for the HA 500?

I also picked one up and the question I have is where in the chain does this phono Denon pre go? The debat is, with an external MM pre, does the HA reside prior to the MM phono pre OR after? There seem to be questions on what Z in the HA has versus the Z of the MM pre that the MC cart needs to see. No manual found that can direct me to the proper setup so asking this question.

Would greatly appreciate any direction on the above Q and documentation location please.
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Don E.
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Old 11th January 2011, 02:41 PM   #5
BigE is offline BigE  Canada
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Location: Toronto
It goes ahead of the MM phono. HA = "head amp".


I have two questions:

How does one change the selector switch?

How can you remove it from the unit for cleaning?

thanks!

Last edited by BigE; 11th January 2011 at 02:43 PM.
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