Re: [IRCA] SRF-59 Alignment Procedure... Proceed At Your Own Risk!

["Ira Elbert New, III" <ien3@xxxxxxxxxxx>]

For those of us with two left thumbs, you charge how much for this procedure...?


Bert New
Watkinsville, Georgia
Proudly Serving You Since 1964!

----------------------------------------
> From: D1028Gary@xxxxxxx
> Date: Tue, 25 Dec 2007 01:38:27 -0500
> To: irca@xxxxxxxxxxxxxxxx
> Subject: [IRCA] SRF-59 Alignment Procedure... Proceed At Your Own Risk!
> 
> Hello All,
>  
>      Recently I have had several requests for a  detailed SRF-59 alignment 
> procedure, preferably one that will not send the  hobbyist straight into the 
> psychiatric ward.
>  
>      The procedure below has been simplified as much as  possible, but it is 
> still fully capable of putting your nerves through the  wringer.  It should 
> only be attempted if you have certain proof that  your SRF-59 has a sensitivity 
> problem (relative to another SRF-59), and then  only if you have experience in 
> miniature electronic  disassembly/reassembly, patience, good eyesight, steady 
> nerves, and  confidence.  The SRF-59 is not a Heathkit, and was not 
> engineered for  user-friendly assembly.  Having accepted all the above warnings, feel 
> free  to proceed at your own risk:
>  
> 1)  Turn off radio. Remove belt clip, headphones, and battery.
> 2)  Without forcing, tune dial needle to far left stop (530).
> 3)  Carefully note the exact position of the dial needle at this  point.
>          This is extremely  important for proper dial reassembly!
> 4)  Remove the two screws from back panel.  This will  accomplish
>          absolutely nothing in  making the panels separate.
> 5)  Repeat to yourself, "This radio only cost 15 bucks."
> 6)  Place thumbnail in slot between front and back panels at  the
>          bottom edge of the  radio.  Work thumbnail in slot repeatedly,
>         carefully separating the front  and back panels at the bottom
>         edge, first at the left side,  then the right.  This process may
>         require several minutes.   Do not use tools!
> 7)  After bottom edge of radio has significant separation between 
>        front and back panels, slowly work up  the left and right side
>        of the radio, to increase the  separation. Gently rock the front
>        panel back and forth to increase the  separation, without any
>        forcing.  Do not use tools!
> 8)  When proper separation has been achieved between front and
>        back panels, the top edge may be  separated by gently lifting
>        front panel circular plastic  surrounding the earphone jack, 
>        which will complete  the separation of  front and back panels.
>        At this point, the dial needle's plastic  gear will fall out of its
>        front panel slot, making you think  that the radio is destroyed.
>        Repeat Step #5 above.
> 9)  Carefully reinstall battery in slot, plug in headphones, and  turn
>        on radio (center left switch of  circuit board).
> 10)  Using an RF signal generator (or a live, weak signal near the 
>       bottom of the band, after tuning), take  a non-metallic (plastic,
>       homemade wood, etc.) flat-bladed  alignment tool and 
>       carefully peak the red-slugged IF  transformer for maximum
>       clear audio signal.
> 11) Turn off radio, unplug headphones, remove battery.
> 12) Separate circuit board from back panel (only one tiny spot
>       of glue). This will aid in reassembly.
> 13) Restore tuner to maximum CCW position, and reinstall 
>      orange plastic dial linkage in front panel  slot.  As viewed
>      from front, place dial needle in the exact spot  noted in step
>      #3 (this is extremely important!).
> 14) Slowly slide circuit board headphone jack under top  edge
>     of front panel, and very carefully work the circuit  board into
>     position adjacent to front panel.  Ensure that  battery clips
>     do not bind.
> 15) Carefully check tuner for bind-free operation.  If tuner  binds,
>     or if tuner frequency does not match the dial, the  circuit board
>     must be removed and dial needle linkage repositioned for 
>     correction (this is the trickiest step of the  alignment!)
> 16) If tuner operation is smooth and frequencies match, you have
>     just guaranteed yourself success in this  extremely rough
>     alignment! Congratulate yourself repeatedly.
> 17) Carefully reinstall back panel by sliding top edge under top
>     edge of front panel, and very gently (without forcing)  snap
>     into place, observing slots along sides and  bottom.
> 18) Reinstall 2 back screws, battery, headphones, and belt  clip..
> 19) Turn on radio. Log tons of DX.  Call yourself a  champion!!!
>  
>  
> 73 and Best Wishes,
>  
> Gary  DeBock         
> 
> 
> 
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