An email or phone call to Tentec could save a lot of investigation.
Carl Moreschi N4PY
121 Little Bell Drive
Hays, NC 28635
www.n4py.com
----- Original Message -----
From: "Martin Sole" <hs0zed@csloxinfo.com>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>; "'N4PY2'"
<n4py2@earthlink.net>
Cc: "'ROD'" <w3krq@dejazzd.com>
Sent: Saturday, October 16, 2010 11:30 AM
Subject: Re: [TenTec] Orion resets at every power up
> And some more,
>
> The schematic I have calls out an M48T35AV, a combined 256K SRAM real time
> clock, power fail control circuit and battery. Fitted to my radio is an
> M4T28, a 48mAh battery and crystal. Ha, but pulling it off reveals the
> M48T35AV underneath. The plot thickens. Reading the data sheet now.
>
> Martin, HS0ZED
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Martin Sole
> Sent: 16 October 2010 22:20
> To: 'N4PY2'; 'Discussion of Ten-Tec Equipment'
> Cc: 'ROD'
> Subject: Re: [TenTec] Orion resets at every power up
>
> DSP/CPU board, U501, Yellow oblong, ST device marked C996160215,
> M4T28-BR12SH1, Timekeeper Snaphat Lithium Battery.
> Looks like it's plugged in to a 16 pin DIL holder designed to be mounted
> SMD
> style.
>
> Now to find it in the schematics. Unlikely I can find a source locally if
> it
> should turn out to be the problem.
>
> BTW, checked the 5 volt supply and it measures 5.06 volts at the output of
> the regulator board so I guess that is okay.
>
> Martin, HS0ZED
>
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of N4PY2
> Sent: 16 October 2010 22:08
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Orion resets at every power up
>
> That's definitely not the case. I just can't remember exactly where the
> battery is located.
>
> Carl Moreschi N4PY
> 121 Little Bell Drive
> Hays, NC 28635
> www.n4py.com
>
>
> ----- Original Message -----
> From: "ROD" <w3krq@dejazzd.com>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Saturday, October 16, 2010 10:56 AM
> Subject: Re: [TenTec] Orion resets at every power up
>
>
>>I think they are using a chip with a built in battery
>>
>> --------------------------------------------------
>> From: "Martin Sole" <hs0zed@csloxinfo.com>
>> Sent: Saturday, October 16, 2010 10:44 AM
>> To: "'N4PY2'" <n4py2@earthlink.net>; "'Discussion of Ten-Tec Equipment'"
>> <tentec@contesting.com>
>> Subject: Re: [TenTec] Orion resets at every power up
>>
>>> Okay, now I'm really confused! I'm looking at the V2 sweep mod
>>> document and have my 565AT in bits in front of me. Cannot for the
>>> life of me identify a battery anywhere on either the document or the
>>> hardware on my bench. Huh, what gives? Where exactly is this battery?
>>> Lets try and narrow it down to a specific board first:
>>> DSP/CPU
>>> Display
>>> Left side front panel
>>> Right side front panel
>>>
>>> Maybe I'm being dumb here but nothing I can see looks anything like a
>>> battery I've ever seen before.
>>>
>>> Thanks
>>> Martin, HS0ZED
>>>
>>>
>>> -----Original Message-----
>>> From: tentec-bounces@contesting.com
>>> [mailto:tentec-bounces@contesting.com]
>>> On Behalf Of N4PY2
>>> Sent: 16 October 2010 21:14
>>> To: Martin Sole
>>> Cc: tentec
>>> Subject: Re: [TenTec] Orion resets at every power up
>>>
>>> It's in the front panel of the Orion. It's a coin cell. See the
>>> description on the tentec website for how to do the version 2 sweep mod.
>>> This description shows how to get to the battery. The battery is
>>> what keeps the non-volatile RAM alive. Changing it should fix your
>>> problem.
>>>
>>> Carl Moreschi N4PY
>>> 121 Little Bell Drive
>>> Hays, NC 28635
>>> www.n4py.com
>>>
>>>
>>> ----- Original Message -----
>>> From: "Martin Sole" <hs0zed@csloxinfo.com>
>>> To: "'N4PY2'" <n4py2@earthlink.net>; "'Discussion of Ten-Tec Equipment'"
>>> <tentec@contesting.com>
>>> Sent: Saturday, October 16, 2010 10:06 AM
>>> Subject: RE: [TenTec] Orion resets at every power up
>>>
>>>
>>>> There's a battery? Who'd have thought. I know it says battery
>>>> failure when doing a RAM clear but had assumed (ha) it was just a
>>>> way of saying that the process had taken place. Maybe standard
>>>> device text.
>>>>
>>>> So where is the battery? Not on the CPU/DSP board. What is it's
>>>> function?
>>>> Which schematic is it on? Coin cell? What expected life? Hopefully
>>>> changing requires no special procedure. Who knows? Questions
>>>> questions??!!
>>>>
>>>> Thanks
>>>> Martin, HS0ZED
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: tentec-bounces@contesting.com
>>>> [mailto:tentec-bounces@contesting.com]
>>>> On Behalf Of N4PY2
>>>> Sent: 16 October 2010 19:11
>>>> To: Discussion of Ten-Tec Equipment
>>>> Subject: Re: [TenTec] Orion resets at every power up
>>>>
>>>> There's a battery behind the front panel of the Orion. It may need
>>>> to be replaced. Follow the old instructions on the Tentec site for
>>>> how to modify the Orion for the Version 2 sweep to get to the
>>>> battery.
>>>>
>>>> Carl Moreschi N4PY
>>>> 121 Little Bell Drive
>>>> Hays, NC 28635
>>>> www.n4py.com
>>>>
>>>>
>>>> ----- Original Message -----
>>>> From: "Martin Sole" <hs0zed@csloxinfo.com>
>>>> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>>>> Sent: Saturday, October 16, 2010 2:10 AM
>>>> Subject: [TenTec] Orion resets at every power up
>>>>
>>>>
>>>>> After being able to load software into the radio again, not sure if
>>>>> it was PC serial port cable or connectors but it's okay now, I'm
>>>>> now seeing that at almost every power cycle the radio does a master
>>>>> reset. The sequence of events is as follows:
>>>>>
>>>>>
>>>>>
>>>>> Radio off
>>>>>
>>>>> Power up and master reset complete appears
>>>>>
>>>>> Radio boots but has unusable audio
>>>>>
>>>>> Power down followed by power up again about 5 seconds later radio
>>>>> starts normally
>>>>>
>>>>> Power off and leave for a short while, sometimes only 20 seconds or
>>>>> so, power up again causes master reset
>>>>>
>>>>>
>>>>>
>>>>> Needless to say this is frustrating.
>>>>>
>>>>>
>>>>>
>>>>> RAM clear and forced master reset do not appear to have helped.
>>>>>
>>>>>
>>>>>
>>>>> Is it a 'known' issue?
>>>>>
>>>>>
>>>>>
>>>>> Thanks
>>>>>
>>>>> Martin, HS0ZED
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TenTec mailing list
>>>>> TenTec@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>>
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>>
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