[Elecraft] SEC 1235M operating in 230 VAC

[Mike Fatchett W0MU]

Post the solution so it will be in the archives..........

On 9/9/2011 10:47 AM, Jorge Diez - CX6VM wrote:
> thanks all.
>
> Samlex answered me with the solution.
>
> 73,
> Jorge
> CX6VM
>
> -----Mensaje original-----
> De: Ken Wagner K3IU [mailto:kenk3iu at cox.net]
> Enviado el: Viernes, 09 de Septiembre de 2011 10:55 a.m.
> Para: Jorge Diez - CX6VM
> Asunto: Re: [Elecraft] SEC 1235M operating in 230 VAC
>
> Page 4 of the manual available online
> has detailed instructions for "OPERATION
> FROM AC VOLTAGE OF 230 VAC".
> ~~~~~~~~~~~~~~~~~~~
> These units have been preset to operate
> from an input voltage of 120 VAC, 60
> Hz. The units can be set to operate from
> an input voltage of 230 VAC, 60 Hz. by
> changing the position of an internal
> jumper. The procedure for conversion to
> input voltage of 230 VAC, 50 Hz. is as
> follows:
> . Switch off the unit and unplug the
> power cord from the AC outlet
> . Remove the top cover
> . For 120 VAC operation (pre-set
> condition), points "D" and "E" on the
> printed circuit board (PCB) have been
> connected (shorted) with a flexible wire
> jumper. To convert to 230 VAC input,
> disconnect the quick disconnect connector
> at point "D" by pulling it upwards. Tape
> this end with an insulation tape and use
> a cable tie to tie it securely to the
> wire harness running above
> . The fuse on the AC side for the preset
> input voltage of 120 VAC is
> rated at 250 V, 8 A. For 230 VAC
> operation, the fuse has to be rated at
> 250 V,
> 4A. Replace the existing 8 A fuse with a
> 4 A fuse. See under "SPECIFICATIONS"
> on page 11 for details on the 4 A fuse.
> .The detachable power cord that is
> provided has an "IEC 320-13"
> female connector on one end that will
> mate with the "IEC 320-C14" male AC
> inlet connector on the power supply. The
> other end of this power cord has a 120
> VAC NEMA5-15P plug meant for connection
> to the 120 VAC, NEMA5-15R outlet.
> For operation on 230 VAC, 50 Hz, a
> different detachable power cord will have to
> be used. Use an appropriate power cord
> that has an "IEC 320-13" female
> connector on one end (for connection to
> the "IEC 320-C14" AC inlet connector
> on the power supply) and a 230 VAC plug
> on the other end corresponding to the
> 230 VAC outlet. Please ensure that the
> new 230 VAC power cord uses two pole,
> 3 wire grounding configuration (this
> will ensure proper earth grounding).
> ~~~~~~~~~~~~~~~~~~~~~~~
>
> On 9/9/2011 9:42 AM, Jorge Diez - CX6VM
> wrote:
>> SEC 1235M
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