display

[chris-489]

Hi I have just got to the stage of testing my K2.when I switch on I hear
the relays clicking but the display does not show anything it is blank
the leds light the display.Has anyone had this problem ? I am going to
take it apart and re solder the pins of the display as they were very
short and did not come all the way through the PC board . hope to hear
from the group soon Chris
_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Don Wilhelm-3]

Chris,

If you see nothing on the display, check to be certain you soldered pin 1 of
the U1 socket.  If you missed it (and several other folks have made that
error) it is a bit tricky to solder since the LCD is now in place, but you
can cut away a bit of the plastic from the socket and solder the pin from
the socket side of the board.

If you missed soldering some of the LCD pins, you would likely see some
stuff displayed (even though it looks like garbage).  If you have doubts
about the LCD soldering integrity, solder the legs from the top of the
board.

Another thing that can give strange troubles is the soldering of the
connectors - there are connector points on the Control Board, the RF Board,
and the Front Panel board - signals from the Control Board to the Front
Panel must go through 2 sets of connectors.

73,
Don W3FPR

> -----Original Message-----
>
> Hi I have just got to the stage of testing my K2.when I switch on I hear
> the relays clicking but the display does not show anything it is blank
> the leds light the display.Has anyone had this problem ? I am going to
> take it apart and re solder the pins of the display as they were very
> short and did not come all the way through the PC board . hope to hear
> from the group soon Chris
>

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

[Roland Whitsitt]

Another thing to look for and it took me months to find it, R15 & R16 was
not soldered.
Roland in Californ-i-a
----- Original Message -----
From: "Don Wilhelm" <[hidden email]>
To: "chris" <[hidden email]>; <[hidden email]>
Sent: Saturday, February 04, 2006 5:35 PM
Subject: RE: [Elecraft] display


> Chris,
>
> If you see nothing on the display, check to be certain you soldered pin 1
of

> the U1 socket.  If you missed it (and several other folks have made that
> error) it is a bit tricky to solder since the LCD is now in place, but you
> can cut away a bit of the plastic from the socket and solder the pin from
> the socket side of the board.
>
> If you missed soldering some of the LCD pins, you would likely see some
> stuff displayed (even though it looks like garbage).  If you have doubts
> about the LCD soldering integrity, solder the legs from the top of the
> board.
>
> Another thing that can give strange troubles is the soldering of the
> connectors - there are connector points on the Control Board, the RF

Board,

> and the Front Panel board - signals from the Control Board to the Front
> Panel must go through 2 sets of connectors.
>
> 73,
> Don W3FPR
>
> > -----Original Message-----
> >
> > Hi I have just got to the stage of testing my K2.when I switch on I hear
> > the relays clicking but the display does not show anything it is blank
> > the leds light the display.Has anyone had this problem ? I am going to
> > take it apart and re solder the pins of the display as they were very
> > short and did not come all the way through the PC board . hope to hear
> > from the group soon Chris
> >
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com