Fw: Fw: [Premium-Rx] WJ AN/URR-74 help

[L D Ritta]

Glen
I can not email you direct your software is blocking my emails.

Lee

----- Original Message ----- 
From: "Mail Delivery Subsystem" <MAILER-DAEMON at fallbackmx10.syd.optusnet.com.au>
To: <ufp at optusnet.com.au>
Sent: Thursday, October 23, 2008 2:16 PM
Subject: Returned mail: see transcript for details


> The original message was received at Thu, 23 Oct 2008 14:46:53 +1100
> from mail08.syd.optusnet.com.au [211.29.132.189]
> 
>   ----- The following addresses had permanent fatal errors -----
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>   ----- Transcript of session follows -----
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> <<< 550 Error - Blocked for abuse. See http://att.net/blocks
> ... while talking to gateway-f2.isp.att.net.:
>>>> QUIT
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> 554 5.0.0 Service unavailable

----- Original Message ----- 
From: L D Ritta 
To: Glenn Little 
Sent: Thursday, October 23, 2008 2:17 PM
Subject: Re: Fw: [Premium-Rx] WJ AN/URR-74 help


Yes it is as I can not anything else to do the same current the only one that came close
is the cd4511 but it will only handle 25ma and I have not found any leds which have the same pinouts
and only 25ma. the lowest current hp leds go is with their low current series but that is 45ma.

So yes it looks like it unless I redesign the pcb 

73 Lee





----- Original Message ----- 
  From: Glenn Little 
  To: L D Ritta 
  Sent: Thursday, October 23, 2008 1:39 PM
  Subject: Re: Fw: [Premium-Rx] WJ AN/URR-74 help


  Is the chip that you are looking for a DS8857J?

  Glenn
  WB4UIV

  At 12:34 PM 10/22/2008, you wrote:


    ----- Original Message ----- 
    From: L D Ritta 
    To: carcia at sbcglobal.net 
    Sent: Thursday, October 23, 2008 3:01 AM
    Subject: Re: [Premium-Rx] WJ AN/URR-74 help

    Well I got it without cutting the leads out using of all some of my mothers perfumme applied using a firm paint brush.
    Now I need to find a replacement. 
     
    Lee
     
     
     
     
     
    ----- Original Message ----- 

      From: FRANCIS CARCIA 

      To: L D Ritta 

      Sent: Tuesday, October 21, 2008 10:38 AM

      Subject: Re: [Premium-Rx] WJ AN/URR-74 help


      Cut each lead of the IC and remove the package then 1 pin at a time. MEK should loosen it up. Auto paint thinner may also work.


      --- On Mon, 10/20/08, L D Ritta <ufp at optusnet.com.au> wrote:

        From: L D Ritta <ufp at optusnet.com.au>

        Subject: [Premium-Rx] WJ AN/URR-74 help

        To: premium-rx at mailman.qth.net 

        Date: Monday, October 20, 2008, 1:15 PM


        Hello Everyone


          
        This is the next installment of the saga to repair my display board for the WJ AN/URR-74.

        What do you use to remove the conformal coating, as I have desoldered the U8 chip. 

        It is stuck there. Any ideas?


          
        73 Lee


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  ---------------------------------------------------------------------------
  Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
  Amateur Callsign:  WB4UIV            wb4uiv at amsat.org   AMSAT LM 2178
  QTH:  Goose Creek, SC USA (EM92xx)                      ARRL  TAPR
  "It is not the class of license that the Amateur holds but the class 
  of the Amateur that holds the license"
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