DR510.1

Date: 7 Jul 90 04:22:14 GMT
From: philmtl!philabs!briar!rfc@uunet.uu.net  (Robert Casey)
Subject: Alinco DR510 Crossband Repeater Mod
To: info-hams@ucsd.edu

  DR-510 - Vehicular Extender Modification

  How to do it

1.  Remove bottom cover

2.  Remove 2 Phillips screws at corners of subtone board
    (small board near center in front) and move the tone board out of
    the way.

3.  Solder an 16V electrolytic capacitor
  (10MFD to 100MFD but best to use 40MFD to
  50MFD) as follows:

  A.  Neg (-) lead to pin 8 on device (IC) labeled - M54959P
  B.  Pos (+) lead to pin 3, counting from left while facing front
     of transceiver of the white 11 pin connector.

                ANT                                      Power cord
                -----------------Rear----------------------------

                        l_l_l_l_l_l_l_l
                        l   M54959P   l
                        l_____________l     (-)
                        l l l l l l l l------47uF+
                                                /(+)
                                               /
                             [][][][][][] [][][X][][][][][][][][]
             ------------------Front---------------------------

4.  Remove top cover and faceplate of transceiver. Be careful of speaker wires!
A.  To remove faceplate:
 1.  Remove main dial knob and retaining nut.
 2.  Remove mic. socket retaining ring.
 3.  GENTLY lift tabs, located approximately 3/4" in from each side,
on top of faceplate and "rotate" toward front of the transceiver.
 4.  When tabs are "free", turn transceiver over and repeat
the process. Remember - gently!
 5.  Set free plate aside.
CONTINUED IN DR510.2