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UPDATE: Nakamichi BX-300 Repair - NEW Problem
UPDATE: Nakamichi BX-300 Repair - NEW Problem
Hello Everyone:
Here is an update on my Nakamichi BX-300. This is the same tape deck
that has flickering
digits in its counter and keeps resetting its counter back to "0000"
AND keeps
putting itself back into PLAY mode - even when there is no tape in the
machine.
I have solved a couple of problems but caused another.
First of all, I have narrowed it down to IC701 on the counter PC
board. This IC
chip (microprocessor) apparently was faulty.
In the Nakamichi service manual, this chip is listed as LM6416E-106
I found an LM6416E at an online parts source that caters to repair
techs. There was no suffix of any kind
after the "E". It is just a "regular" LM6416E. I thought this IC was
the same
as the faulty one in the BX-300, but it's not.
FIRST THE GOOD NEWS: After I installed the new LM6416E chip, the deck
no longer
has flickering numbers in the counter and the deck no longer puts
itself into
PLAY mode, so I'm happy about that....
NOW THE BAD NEWS: THE COUNTER NO LONGER WORKS.
Instead of "0000" when you first turn the deck on, you see "88
" (the
underlines represent the two missing digits).
When you press PLAY the counter DOES NOT change.
When you press REW or FF, the counter briefly shows this:
"8 8 " ...and then
changes to this: "8 8" ...and DOES NOT change.
Unless someone has any ideas, I am either going to have to find a
parts deck to
get the proper LM6416E-106 chip, or I am going to have to live without
the counter.
I really wouldn't bother with this deck as I have other Naks that are
much
nicer, but this BX-300 has great sentimental value because it was my
very first
piece of Nak equipment.
DOES ANYONE HAVE ANY IDEAS HOW I CAN CORRECT THE PROBLEM - OR DOES
ANYONE HAVE
ANY SPARE NAKAMICHI IC CHIPS?
THE CHIP THAT CAME OUT OF MY BX-300 HAS THESE MARKINGS ON IT: 106
B-6368A 4F2
Thanks in advance to all who can help me with this!
Hello Everyone:
Here is an update on my Nakamichi BX-300. This is the same tape deck
that has flickering
digits in its counter and keeps resetting its counter back to "0000"
AND keeps
putting itself back into PLAY mode - even when there is no tape in the
machine.
I have solved a couple of problems but caused another.
First of all, I have narrowed it down to IC701 on the counter PC
board. This IC
chip (microprocessor) apparently was faulty.
In the Nakamichi service manual, this chip is listed as LM6416E-106
I found an LM6416E at an online parts source that caters to repair
techs. There was no suffix of any kind
after the "E". It is just a "regular" LM6416E. I thought this IC was
the same
as the faulty one in the BX-300, but it's not.
FIRST THE GOOD NEWS: After I installed the new LM6416E chip, the deck
no longer
has flickering numbers in the counter and the deck no longer puts
itself into
PLAY mode, so I'm happy about that....
NOW THE BAD NEWS: THE COUNTER NO LONGER WORKS.
Instead of "0000" when you first turn the deck on, you see "88
" (the
underlines represent the two missing digits).
When you press PLAY the counter DOES NOT change.
When you press REW or FF, the counter briefly shows this:
"8 8 " ...and then
changes to this: "8 8" ...and DOES NOT change.
Unless someone has any ideas, I am either going to have to find a
parts deck to
get the proper LM6416E-106 chip, or I am going to have to live without
the counter.
I really wouldn't bother with this deck as I have other Naks that are
much
nicer, but this BX-300 has great sentimental value because it was my
very first
piece of Nak equipment.
DOES ANYONE HAVE ANY IDEAS HOW I CAN CORRECT THE PROBLEM - OR DOES
ANYONE HAVE
ANY SPARE NAKAMICHI IC CHIPS?
THE CHIP THAT CAME OUT OF MY BX-300 HAS THESE MARKINGS ON IT: 106
B-6368A 4F2
Thanks in advance to all who can help me with this!
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
Naive response...
Is it possible that the -106 version (if that, indeed, is what the number
represents) has custom ROM that handles the counter? This is unlikely, but
who knows?
There's also the possibility that, in making repairs, you damaged something
related to counter operation.
Naive response...
Is it possible that the -106 version (if that, indeed, is what the number
represents) has custom ROM that handles the counter? This is unlikely, but
who knows?
There's also the possibility that, in making repairs, you damaged something
related to counter operation.
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
William:
Not a naive response at all! It turns out that the -106 version does
seem to be a customized version of the LM6416E chip. I did some online
searching, and a couple of electronics wholesalers list part number
LM6416E-106 with manufacturer listed as Nakamichi. So either
Nakamichi manufactured the chip themselves, or the more likely
scenario is that this chip was custom manufactured for Nakamichi.
Aaargh!
On May 27, 12:21 pm, "William Sommerwerck"
<grizzledgee...@comcast,net > wrote:
> Naive response...
>
> Is it possible that the -106 version (if that, indeed, is what the number
> represents) has custom ROM that handles the counter? This is unlikely, but
> who knows?
>
> There's also the possibility that, in making repairs, you damaged something
> related to counter operation.
William:
Not a naive response at all! It turns out that the -106 version does
seem to be a customized version of the LM6416E chip. I did some online
searching, and a couple of electronics wholesalers list part number
LM6416E-106 with manufacturer listed as Nakamichi. So either
Nakamichi manufactured the chip themselves, or the more likely
scenario is that this chip was custom manufactured for Nakamichi.
Aaargh!
On May 27, 12:21 pm, "William Sommerwerck"
<grizzledgee...@comcast,net > wrote:
> Naive response...
>
> Is it possible that the -106 version (if that, indeed, is what the number
> represents) has custom ROM that handles the counter? This is unlikely, but
> who knows?
>
> There's also the possibility that, in making repairs, you damaged something
> related to counter operation.
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
EADGBE wrote:
> William:
>
> Not a naive response at all! It turns out that the -106 version does
> seem to be a customized version of the LM6416E chip. I did some online
> searching, and a couple of electronics wholesalers list part number
> LM6416E-106 with manufacturer listed as Nakamichi. So either
> Nakamichi manufactured the chip themselves, or the more likely
> scenario is that this chip was custom manufactured for Nakamichi.
> Aaargh!
>
> On May 27, 12:21 pm, "William Sommerwerck"
> <grizzledgee...@comcast,net > wrote:
>
>>Naive response...
>>
>>Is it possible that the -106 version (if that, indeed, is what the number
>>represents) has custom ROM that handles the counter? This is unlikely, but
>>who knows?
>>
>>There's also the possibility that, in making repairs, you damaged something
>>related to counter operation.
>
>
>
The LM6413 is just a general purpose 4 bit microprocessor with on board
ram and rom (PDF's are on line). Without the onboard rom programmed, its
totally stupid with no directions to follow. Unless you find the -106
version which has the rom preprogrammed, you would need the firmware and
a programmer to program a blank LM6413 (if that's even possible).
http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet.html
Before you changed the chip, did you check for proper power supply rail
voltage, ripple, and that any filter caps were not defective?
Bob
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EADGBE wrote:
> William:
>
> Not a naive response at all! It turns out that the -106 version does
> seem to be a customized version of the LM6416E chip. I did some online
> searching, and a couple of electronics wholesalers list part number
> LM6416E-106 with manufacturer listed as Nakamichi. So either
> Nakamichi manufactured the chip themselves, or the more likely
> scenario is that this chip was custom manufactured for Nakamichi.
> Aaargh!
>
> On May 27, 12:21 pm, "William Sommerwerck"
> <grizzledgee...@comcast,net > wrote:
>
>>Naive response...
>>
>>Is it possible that the -106 version (if that, indeed, is what the number
>>represents) has custom ROM that handles the counter? This is unlikely, but
>>who knows?
>>
>>There's also the possibility that, in making repairs, you damaged something
>>related to counter operation.
>
>
>
The LM6413 is just a general purpose 4 bit microprocessor with on board
ram and rom (PDF's are on line). Without the onboard rom programmed, its
totally stupid with no directions to follow. Unless you find the -106
version which has the rom preprogrammed, you would need the firmware and
a programmer to program a blank LM6413 (if that's even possible).
http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet.html
Before you changed the chip, did you check for proper power supply rail
voltage, ripple, and that any filter caps were not defective?
Bob
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Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
Bob:
Thanks for your very informative response. It explained a lot!
Yes, I did thoroughly check all power supply voltages, both at the
power supply circuit and at the IC itself. I checked DC voltage and
AC ripple. All numbers were stable and well within spec. Didn't
check any filter capacitors, though.
On May 27, 2:04 pm, Bob Urz <s...@inetnebr,com > wrote:
>
> The LM6413 is just a general purpose 4 bit microprocessor with on board
> ram and rom (PDF's are on line). Without the onboard rom programmed, its
> totally stupid with no directions to follow. Unless you find the -106
> version which has the rom preprogrammed, you would need the firmware and
> a programmer to program a blank LM6413 (if that's even possible).
>
> http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet...
>
> Before you changed the chip, did you check for proper power supply rail
> voltage, ripple, and that any filter caps were not defective?
>
> Bob
Bob:
Thanks for your very informative response. It explained a lot!
Yes, I did thoroughly check all power supply voltages, both at the
power supply circuit and at the IC itself. I checked DC voltage and
AC ripple. All numbers were stable and well within spec. Didn't
check any filter capacitors, though.
On May 27, 2:04 pm, Bob Urz <s...@inetnebr,com > wrote:
>
> The LM6413 is just a general purpose 4 bit microprocessor with on board
> ram and rom (PDF's are on line). Without the onboard rom programmed, its
> totally stupid with no directions to follow. Unless you find the -106
> version which has the rom preprogrammed, you would need the firmware and
> a programmer to program a blank LM6413 (if that's even possible).
>
> http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet...
>
> Before you changed the chip, did you check for proper power supply rail
> voltage, ripple, and that any filter caps were not defective?
>
> Bob
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
On May 27, 1:34 pm, EADGBE <hwbossh...@comcast,net > wrote:
> Bob:
>
> Thanks for your very informative response. It explained a lot!
>
> Yes, I did thoroughly check all power supply voltages, both at the
> power supply circuit and at the IC itself. I checked DC voltage and
> AC ripple. All numbers were stable and well within spec. Didn't
> check any filter capacitors, though.
>
> On May 27, 2:04 pm, Bob Urz <s...@inetnebr,com > wrote:
>
>
>
>
>
> > The LM6413 is just a general purpose 4 bit microprocessor with on board
> > ram and rom (PDF's are on line). Without the onboard rom programmed, its
> > totally stupid with no directions to follow. Unless you find the -106
> > version which has the rom preprogrammed, you would need the firmware and
> > a programmer to program a blank LM6413 (if that's even possible).
>
> > http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet...
>
> > Before you changed the chip, did you check for proper power supply rail
> > voltage, ripple, and that any filter caps were not defective?
>
> > Bob- Hide quoted text -
>
> - Show quoted text -
If I were you, I would put the original chip back in with the correct
programming, then check ALL the input pins for glitches, especilly the
ones that sense the tape movement, how does that part work, is there
an optical sensor or what, check the logic signals from these sensors,
maybe try a 0.1uF cap to ground on each one to remove any glitches,
the switches might be dirty causing the software based counter to
misbehave if it was not designed to have some debouncing feature...
Mark
On May 27, 1:34 pm, EADGBE <hwbossh...@comcast,net > wrote:
> Bob:
>
> Thanks for your very informative response. It explained a lot!
>
> Yes, I did thoroughly check all power supply voltages, both at the
> power supply circuit and at the IC itself. I checked DC voltage and
> AC ripple. All numbers were stable and well within spec. Didn't
> check any filter capacitors, though.
>
> On May 27, 2:04 pm, Bob Urz <s...@inetnebr,com > wrote:
>
>
>
>
>
> > The LM6413 is just a general purpose 4 bit microprocessor with on board
> > ram and rom (PDF's are on line). Without the onboard rom programmed, its
> > totally stupid with no directions to follow. Unless you find the -106
> > version which has the rom preprogrammed, you would need the firmware and
> > a programmer to program a blank LM6413 (if that's even possible).
>
> > http :// www .datasheetarchive,com /pdf/lm6416-datasheet/lm6416-datasheet...
>
> > Before you changed the chip, did you check for proper power supply rail
> > voltage, ripple, and that any filter caps were not defective?
>
> > Bob- Hide quoted text -
>
> - Show quoted text -
If I were you, I would put the original chip back in with the correct
programming, then check ALL the input pins for glitches, especilly the
ones that sense the tape movement, how does that part work, is there
an optical sensor or what, check the logic signals from these sensors,
maybe try a 0.1uF cap to ground on each one to remove any glitches,
the switches might be dirty causing the software based counter to
misbehave if it was not designed to have some debouncing feature...
Mark
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
Mark:
Your suggestion to put the original chip back in sounds good, but I am
inclined to think that the chip is indeed defective, because when I
installed the "generic" LM6416E chip, two of the main problems went
away: namely, 1) the problem of the deck always returning itself to
PLAY mode even when no tape is inserted (this was the main problem),
and 2) the constantly flickering counter digits.
Even though the generic LM6416E chip could not properly count (due to
lack of Nak-specific programming), the chip DID control the tape
transport functions and counter display voltage perfectly. Thus, I
have to conclude that the original chip is indeed bad.
On May 27, 11:58 pm, Mark <makol...@yahoo,com > wrote:
>
> If I were you, I would put the original chip back in with the correct
> programming, then check ALL the input pins for glitches, especilly the
> ones that sense the tape movement, how does that part work, is there
> an optical sensor or what, check the logic signals from these sensors,
> maybe try a 0.1uF cap to ground on each one to remove any glitches,
> the switches might be dirty causing the software based counter to
> misbehave if it was not designed to have some debouncing feature...
>
> Mark
Mark:
Your suggestion to put the original chip back in sounds good, but I am
inclined to think that the chip is indeed defective, because when I
installed the "generic" LM6416E chip, two of the main problems went
away: namely, 1) the problem of the deck always returning itself to
PLAY mode even when no tape is inserted (this was the main problem),
and 2) the constantly flickering counter digits.
Even though the generic LM6416E chip could not properly count (due to
lack of Nak-specific programming), the chip DID control the tape
transport functions and counter display voltage perfectly. Thus, I
have to conclude that the original chip is indeed bad.
On May 27, 11:58 pm, Mark <makol...@yahoo,com > wrote:
>
> If I were you, I would put the original chip back in with the correct
> programming, then check ALL the input pins for glitches, especilly the
> ones that sense the tape movement, how does that part work, is there
> an optical sensor or what, check the logic signals from these sensors,
> maybe try a 0.1uF cap to ground on each one to remove any glitches,
> the switches might be dirty causing the software based counter to
> misbehave if it was not designed to have some debouncing feature...
>
> Mark
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
"EADGBE" = top posting IDIOT
> Your suggestion to put the original chip back in sounds good, but I am
> inclined to think that the chip is indeed defective, because when I
> installed the "generic" LM6416E chip,
** There is no such thing - you fool.
It is either a blank and so does NOTHING at all or it has a specific
purpose programmed in.
> two of the main problems went
> away: namely, 1) the problem of the deck always returning itself to
> PLAY mode even when no tape is inserted (this was the main problem),
> and 2) the constantly flickering counter digits.
** So it was simply not working.
> Even though the generic LM6416E chip could not properly count (due to
> lack of Nak-specific programming), the chip DID control the tape
> transport functions and counter display voltage perfectly.
** Bollocks - it simply did nothing.
> Thus, I
> have to conclude that the original chip is indeed bad.
** Like a hee hawing ass makes a conclusion.
...... Phil
"EADGBE" = top posting IDIOT
> Your suggestion to put the original chip back in sounds good, but I am
> inclined to think that the chip is indeed defective, because when I
> installed the "generic" LM6416E chip,
** There is no such thing - you fool.
It is either a blank and so does NOTHING at all or it has a specific
purpose programmed in.
> two of the main problems went
> away: namely, 1) the problem of the deck always returning itself to
> PLAY mode even when no tape is inserted (this was the main problem),
> and 2) the constantly flickering counter digits.
** So it was simply not working.
> Even though the generic LM6416E chip could not properly count (due to
> lack of Nak-specific programming), the chip DID control the tape
> transport functions and counter display voltage perfectly.
** Bollocks - it simply did nothing.
> Thus, I
> have to conclude that the original chip is indeed bad.
** Like a hee hawing ass makes a conclusion.
...... Phil
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
"EADGBE"
>
> Not a naive response at all! It turns out that the -106 version does
> seem to be a customized version of the LM6416E chip. I did some online
> searching, and a couple of electronics wholesalers list part number
> LM6416E-106 with manufacturer listed as Nakamichi. So either
> Nakamichi manufactured the chip themselves, or the more likely
> scenario is that this chip was custom manufactured for Nakamichi.
> Aaargh!
>
** The LM6416 is a programmable micro-computer - aka a microcontroller.
Equipment makers purchase them as "blanks" and then program them with the
code needed to do the task in a particular product. The code is invariably
kept secret - so only the equipment maker can supply spare ones.
If the supply of spares dries up or the maker goes out of business like Naka
did, there is no way to get a replacement.
...... Phil
"EADGBE"
>
> Not a naive response at all! It turns out that the -106 version does
> seem to be a customized version of the LM6416E chip. I did some online
> searching, and a couple of electronics wholesalers list part number
> LM6416E-106 with manufacturer listed as Nakamichi. So either
> Nakamichi manufactured the chip themselves, or the more likely
> scenario is that this chip was custom manufactured for Nakamichi.
> Aaargh!
>
** The LM6416 is a programmable micro-computer - aka a microcontroller.
Equipment makers purchase them as "blanks" and then program them with the
code needed to do the task in a particular product. The code is invariably
kept secret - so only the equipment maker can supply spare ones.
If the supply of spares dries up or the maker goes out of business like Naka
did, there is no way to get a replacement.
...... Phil
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
I thought as much, Phil. Thanks!
It's funny...I went and Googled "LM6416E-106" and there are TONS of
these sitting around. Unfortunately, they are all in Hong Kong, it
seems! I can get them for $10-$20 apiece plus shipping to the USA,
which brings the price up to 50 or 60 bucks.
I think I'll just wait and get a friend's Nak parts donor deck. His
deck has a digital counter in it as well, very likely powered by the
same IC. And even if it isn't, I'm sure there is something in there I
can use at another time.
I thought as much, Phil. Thanks!
It's funny...I went and Googled "LM6416E-106" and there are TONS of
these sitting around. Unfortunately, they are all in Hong Kong, it
seems! I can get them for $10-$20 apiece plus shipping to the USA,
which brings the price up to 50 or 60 bucks.
I think I'll just wait and get a friend's Nak parts donor deck. His
deck has a digital counter in it as well, very likely powered by the
same IC. And even if it isn't, I'm sure there is something in there I
can use at another time.
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
"EADGBE" <hwbosshoss@comcast,net > wrote in message
news:1180321779.663324.246190@g4g2000hsf.googlegroups,com ...
>
> I thought as much, Phil. Thanks!
>
> It's funny...I went and Googled "LM6416E-106" and there are TONS of
> these sitting around. Unfortunately, they are all in Hong Kong, it
> seems! I can get them for $10-$20 apiece plus shipping to the USA,
> which brings the price up to 50 or 60 bucks.
**Good luck with that. Last timne I tried to get some oddball parts, I was
presented with some company in China who ONLY wanted payment via Western
Union (there's a scam right there), or they wanted minimum orders totalling
US$300.00 - $500.00.
>
> I think I'll just wait and get a friend's Nak parts donor deck. His
> deck has a digital counter in it as well, very likely powered by the
> same IC. And even if it isn't, I'm sure there is something in there I
> can use at another time.
**Depends on the deck.
--
Trevor Wilson
www .rageaudio,com .au
--
Posted via a free Usenet account from http :// www .teranews,com
"EADGBE" <hwbosshoss@comcast,net > wrote in message
news:1180321779.663324.246190@g4g2000hsf.googlegroups,com ...
>
> I thought as much, Phil. Thanks!
>
> It's funny...I went and Googled "LM6416E-106" and there are TONS of
> these sitting around. Unfortunately, they are all in Hong Kong, it
> seems! I can get them for $10-$20 apiece plus shipping to the USA,
> which brings the price up to 50 or 60 bucks.
**Good luck with that. Last timne I tried to get some oddball parts, I was
presented with some company in China who ONLY wanted payment via Western
Union (there's a scam right there), or they wanted minimum orders totalling
US$300.00 - $500.00.
>
> I think I'll just wait and get a friend's Nak parts donor deck. His
> deck has a digital counter in it as well, very likely powered by the
> same IC. And even if it isn't, I'm sure there is something in there I
> can use at another time.
**Depends on the deck.
--
Trevor Wilson
www .rageaudio,com .au
--
Posted via a free Usenet account from http :// www .teranews,com
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
"EADGBE" <hwbosshoss@comcast,net > wrote in message
news:1180321779.663324.246190@g4g2000hsf.googlegroups,com ...
>
> I thought as much, Phil. Thanks!
>
> It's funny...I went and Googled "LM6416E-106" and there are TONS of
> these sitting around. Unfortunately, they are all in Hong Kong, it
> seems! I can get them for $10-$20 apiece plus shipping to the USA,
> which brings the price up to 50 or 60 bucks.
**Good luck with that. Last time I tried to get some oddball parts, I was
presented with some company in China who ONLY wanted payment via Western
Union (there's a scam right there), or they wanted minimum orders totalling
US$300.00 - $500.00.
>
> I think I'll just wait and get a friend's Nak parts donor deck. His
> deck has a digital counter in it as well, very likely powered by the
> same IC. And even if it isn't, I'm sure there is something in there I
> can use at another time.
**Depends on the deck.
--
Trevor Wilson
www .rageaudio,com .au
--
Posted via a free Usenet account from http :// www .teranews,com
"EADGBE" <hwbosshoss@comcast,net > wrote in message
news:1180321779.663324.246190@g4g2000hsf.googlegroups,com ...
>
> I thought as much, Phil. Thanks!
>
> It's funny...I went and Googled "LM6416E-106" and there are TONS of
> these sitting around. Unfortunately, they are all in Hong Kong, it
> seems! I can get them for $10-$20 apiece plus shipping to the USA,
> which brings the price up to 50 or 60 bucks.
**Good luck with that. Last time I tried to get some oddball parts, I was
presented with some company in China who ONLY wanted payment via Western
Union (there's a scam right there), or they wanted minimum orders totalling
US$300.00 - $500.00.
>
> I think I'll just wait and get a friend's Nak parts donor deck. His
> deck has a digital counter in it as well, very likely powered by the
> same IC. And even if it isn't, I'm sure there is something in there I
> can use at another time.
**Depends on the deck.
--
Trevor Wilson
www .rageaudio,com .au
--
Posted via a free Usenet account from http :// www .teranews,com
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
> It's funny... I went and Googled "LM6416E-106" and there are
> TONS of these sitting around. Unfortunately, they are all in
> Hong Kong, it seems! I can get them for $10-$20 apiece plus
> shipping to the USA, which brings the price up to 50 or 60 bucks.
Why should shipping cost so much? This would be shipped as a small packet,
which is only a few dollars.
> It's funny... I went and Googled "LM6416E-106" and there are
> TONS of these sitting around. Unfortunately, they are all in
> Hong Kong, it seems! I can get them for $10-$20 apiece plus
> shipping to the USA, which brings the price up to 50 or 60 bucks.
Why should shipping cost so much? This would be shipped as a small packet,
which is only a few dollars.
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
On May 28, 10:31 am, "William Sommerwerck"
<grizzledgee...@comcast,net > wrote:
> Why should shipping cost so much? This would be shipped as a small packet,
> which is only a few dollars.
It's how they make their money on small items, using the excuse that
it's not just the postage, it's the time it takes to prepare the
paperwork, pack it, put a label on it, get it to the post office, and
so on. It's as bad with corporations as it is with home sellers. They
have to account for every penny and every minute.
Haven't you ever bought anything through eBay? A $10 item that weighs
3 ounces ships "anywhere in the US" for $7.49. You could buy it
locally for $14 IF you could buy it locally. But stores ain't what
they used to be and there are so many items that you can only get
through mail order today.
On May 28, 10:31 am, "William Sommerwerck"
<grizzledgee...@comcast,net > wrote:
> Why should shipping cost so much? This would be shipped as a small packet,
> which is only a few dollars.
It's how they make their money on small items, using the excuse that
it's not just the postage, it's the time it takes to prepare the
paperwork, pack it, put a label on it, get it to the post office, and
so on. It's as bad with corporations as it is with home sellers. They
have to account for every penny and every minute.
Haven't you ever bought anything through eBay? A $10 item that weighs
3 ounces ships "anywhere in the US" for $7.49. You could buy it
locally for $14 IF you could buy it locally. But stores ain't what
they used to be and there are so many items that you can only get
through mail order today.
Re: UPDATE: Nakamichi BX-300 Repair - NEW Problem
EADGBE <hwbosshoss@comcast,net > wrote:
>First of all, I have narrowed it down to IC701 on the counter PC
>board. This IC
>chip (microprocessor) apparently was faulty.
>
>In the Nakamichi service manual, this chip is listed as LM6416E-106
This is a microcontroller that has Nakamichi software in it.
>I found an LM6416E at an online parts source that caters to repair
>techs. There was no suffix of any kind
>after the "E". It is just a "regular" LM6416E. I thought this IC was
>the same
>as the faulty one in the BX-300, but it's not.
It has different software in it.
>Unless someone has any ideas, I am either going to have to find a
>parts deck to
>get the proper LM6416E-106 chip, or I am going to have to live without
>the counter.
The counters on these decks aren't really very accurate anyway, to be honest.
>I really wouldn't bother with this deck as I have other Naks that are
>much
>nicer, but this BX-300 has great sentimental value because it was my
>very first
>piece of Nak equipment.
>
>DOES ANYONE HAVE ANY IDEAS HOW I CAN CORRECT THE PROBLEM - OR DOES
>ANYONE HAVE
>ANY SPARE NAKAMICHI IC CHIPS?
It may be possible to clone the firmware if you can borrow a good one
from another machine.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
EADGBE <hwbosshoss@comcast,net > wrote:
>First of all, I have narrowed it down to IC701 on the counter PC
>board. This IC
>chip (microprocessor) apparently was faulty.
>
>In the Nakamichi service manual, this chip is listed as LM6416E-106
This is a microcontroller that has Nakamichi software in it.
>I found an LM6416E at an online parts source that caters to repair
>techs. There was no suffix of any kind
>after the "E". It is just a "regular" LM6416E. I thought this IC was
>the same
>as the faulty one in the BX-300, but it's not.
It has different software in it.
>Unless someone has any ideas, I am either going to have to find a
>parts deck to
>get the proper LM6416E-106 chip, or I am going to have to live without
>the counter.
The counters on these decks aren't really very accurate anyway, to be honest.
>I really wouldn't bother with this deck as I have other Naks that are
>much
>nicer, but this BX-300 has great sentimental value because it was my
>very first
>piece of Nak equipment.
>
>DOES ANYONE HAVE ANY IDEAS HOW I CAN CORRECT THE PROBLEM - OR DOES
>ANYONE HAVE
>ANY SPARE NAKAMICHI IC CHIPS?
It may be possible to clone the firmware if you can borrow a good one
from another machine.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
