[Kenwood] Kenwood TS-850 DC-DC Board

[Maciek SQ6MS]

Nice mod that solves the problem with DC-DC board far below $ 21.81 :

http://homepage2.nifty.com/yamada_radio_clinic/archive/850_dc_dc/850dcdc.htm


You can also use ICL7660 instead of LTC1144.


-- 
Vy73 de Maciek ... --.- -.... -- ...



W dniu 2012-01-02 19:11, Mike Rhodes pisze:
> I am considering ordering the DC-DC board from Pacific Parts just so I
> have one before they become unavailable. However, the part is $10.31 and
> S&H is $11.50! Anything else I should consider ordering to make the S&H
> a little more tolerable?
>
> Mike / W8DN
>
> On 1/1/2012 1:14 PM, k0bx at arrl.net wrote:
>> Hi Mark, this is a common problem with the TS-850.  The replacement board cost
>> about $11.00.
>> My website has detail instructions on this problem.
>>
>> http://qsl.net/k0bx/ts850flu.htm
>>
>> Hope this helps.
>>
>> Joe K0BX
>>    Stop the insanity!
>> Please do not add me to any distribution lists (Joke, Stories or Junk) without
>> my permission.
>>
>>
>>
>>
>> ________________________________
>> From: W1ZC<W1ZC at myfairpoint.net>
>> To: Mark<w4tgb at charter.net>; kenwood at mailman.qth.net
>> Sent: Sun, January 1, 2012 1:44:01 AM
>> Subject: Re: [Kenwood] Kenwood TS-850
>>
>> Most likly the DC-DC converter board failing. Common (one of few) problem.
>> Replacement available from Kenwood parts.
>> Cheers,   Dick
>>
>> -----Original Message-----
>> From: kenwood-bounces at mailman.qth.net
>> [mailto:kenwood-bounces at mailman.qth.net]On Behalf Of Mark
>> Sent: Saturday, December 31, 2011 7:48 PM
>> To: kenwood at mailman.qth.net
>> Subject: [Kenwood] Kenwood TS-850
>> Importance: High
>>
>>
>> Hello all! My name is Mark, W4TGB.
>>
>> I own a highly reliable TS-850 that has just developed a power output issue.
>>
>> At somewhat random times, when I key the transmitter in RTTY or other full
>> carrier mode, the output power will go to full output and then drop off to
>> nearly zero within about 3 seconds and then back to full power.
>>
>> In some cases, the rig will go to full power, drop to near zero and then
>> back to full power followed by another drop to near zero and then to full
>> power... repeat...
>>
>> Has anyone else seen this issue? Any thoughts on a repair?
>>
>> Thank you,
>> Mark
>> W4TGB
>>
>>
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