<PAGE>

                                                                  EXHIBIT 10(al)


                                AMENDMENT NO. 1

     This Amendment No. 1 ("Amendment No. 1") to the Limited Liability Company
Agreement of Accord Contract Services LLC dated August 8, 1996 (the "Agreement")
is made and entered into and effective as of November 5, 1996 (the "Amendment
No. 1 Effective Date") by and between Wyle Electronics, a California corporation
("WYLE") and Marshall Industries, Inc., a California corporation ("MARSHALL").

     WHEREAS, WYLE AND MARSHALL wish to amend the terms of the Agreement.

     NOW THEREFORE, the parties agree as follows:

     1. WYLE and MARSHALL hereby agree that the definition of the term
"Associated Agreement Negotiation Period" (as defined in Section 2.5 of the
Agreement is hereby amended to be defined as that period from August 8, 1996
until December 31, 1996.

     2. Except as expressly set forth in this Amendment No. 1 all other terms of
the Agreement shall remain in full force and effect.

     3. This Amendment No. 1 may be executed in any number of counterparts, each
of which shall be an original and all of which together shall constitute one and
the same instrument.

     4. This Amendment No. 1 may be executed and delivered by facsimile and,
upon such execution and delivery, shall have the same force and effect as an
originally executed instrument.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 1 to
be executed and delivered by their duly authorized representatives as of the
date first above written.

MARSHALL INDUSTRIES, INC.,        WYLE ELECTRONICS,
a California corporation          a California corporation



By: /s/ HENRY W. CHIN             By:  /s/ R. VAN NESS HOLLAND, JR.
    ------------------------           -----------------------------
    Henry W. Chin                       R. Van Ness Holland, Jr.
    Vice President and                  Executive Vice President and
    Chief Financial Officer             Chief Financial Officer


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                                AMENDMENT NO. 2

     This Amendment No. 2 ("Amendment No. 2") to the Limited Liability Company
Agreement of Accord Contract Services LLC dated August 8, 1996 (the "Agreement")
is made and entered into and effective as of December 24, 1996 (the "Amendment
No. 2 Effective Date") by and between Wyle Electronics, a California corporation
("WYLE") and Marshall Industries, Inc., a California corporation ("MARSHALL").

     WHEREAS, WYLE AND MARSHALL wish to amend the terms of the Agreement.

     NOW THEREFORE, the parties agree as follows:

     1.  WYLE and MARSHALL hereby agree that the definition of the term
"Associated Agreement Negotiation Period" (as defined in Section 2.5 of the
Agreement) is hereby amended to be defined as that period from August 8, 1996
until February 28, 1997.

     2.  Except as expressly set forth in Amendment No. 2 all other terms of the
Agreement shall remain in full force and effect.

     3.  This Amendment No. 2 may be executed in any number of counterparts,
each of which shall be an original and all of which together shall constitute
one and the same instrument.

     4.  This Amendment No. 2 may be executed and delivered by facsimile and,
upon such execution and delivery, shall have the same force and effect as an
originally executed instrument.

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 2 to
be executed and delivered by their duly authorized representatives as of the
date first above written.

MARSHALL INDUSTRIES, INC.,      WYLE ELECTRONICS,
a California corporation        a California corporation



By:/s/ HENRY W. CHIN           By:  /s/ R. VAN NESS HOLLAND, JR.
   -----------------------          ----------------------------
   Henry W. Chin                    R. Van Ness Holland, Jr.
   Vice President and               Executive Vice President and
   Chief Financial Officer          Chief Financial Officer




<PAGE>

            AMENDMENT NO. 3 TO LIMITED LIABILITY COMPANY AGREEMENT
                        OF ACCORD CONTRACT SERVICES LLC

          This Amendment No. 3 (the "Amendment") to the Limited Liability
Company Agreement of Accord Contract Services LLC dated as of August 8, 1996
(the "Agreement") is hereby entered into as of February 28, 1997 by and between
Wyle Electronics, a California corporation ("Wyle") and Marshall Industries, a
California corporation ("Marshall").  Capitalized terms used but not otherwise
defined herein shall have the meanings ascribed thereto in the Agreement.

                                R E C I T A L S
                                ---------------

          A.  Wyle and Marshall (together, the "Members") formed Accord Contract
Services LLC, a Delaware limited liability company (the "LLC"), to provide
certain materials management services for each of the Members, including,
without limitation. the acquisition of components and products and the provision
of kitting, turnkey and autoreplenishment services to customers and related
administrative and other related services in connection therewith.

          B.  The Agreement sets forth certain understandings and agreements of
the Members with respect to the LLC.

          C.  Pursuant to the Agreement, the Members have agreed upon the
"Termination Formula" (as defined in the Agreement).

          D.  The Members now desire to enter into this Amendment in order to
incorporate the Termination Formula into, and to make certain amendments to, the
Agreement, as mutually agreed upon by the Members and as set forth below.

          NOW, THEREFORE, in consideration of the mutual covenants and promises
contained herein and for other good and valuable consideration the receipt and
adequacy of which are hereby acknowledged, the parties hereto agree as follows:

                               A G R E E M E N T
                               -----------------

1.   Additional Definitions.  The following definitions shall be, and hereby
     ----------------------
are, added to the Agreement:

     a.   ACQUISITION MULTIPLE:  Upon the occurrence of an Exercise Event, the
          quotient of (i) the Acquisition Value of the Event Member, divided by
                                                                     ------- --
          (ii) the net sales from all sources for the Event Member for the
          twelve full calendar months immediately preceding the month in which
          the Exercise Event occurred.

     b.   ACQUISITION VALUE: Upon the occurrence of an Exercise Event, the value
          of the Event Member in its entirety, as determined in the usual and
          customary manner with reference to the particular event resulting in
          the Exercise Event. In the event

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          that the Exercise Event does not entail the acquisition of the common
          stock or substantially all of the assets of the Event Member for cash
          or securities that are traded on a national securities exchange,
          reported through the National Association of Securities Dealers
          Automated Quotation System or traded over-the-counter, then the
          Acquisition Value shall be determined by agreement of the Members or,
          if the Members are unable to so agree, then by a Neutral Party
          selected in accordance with Section 12.17(c) of this Agreement.

     c.   AGGREGATE BASELINE SALES:  Means the aggregate net sales by both
          Members from the provision of Value Added Services for the twelve full
          calendar months immediately preceding the effective date of the
          Agreement.

     d.   EXERCISE EVENT:  For purposes of the Agreement, the term "Exercise
          Event" shall mean the occurrence of any of the following events with
          respect to a Member:

                    (1) The approval by the shareholders of any Member of the
          dissolution or liquidation of the Member;

                    (2) The consummation by any person (other than a Member) of
          a tender offer or exchange offer to purchase any shares of a Member's
          common stock such that, upon the consummation of such offer, such
          person owns or controls 20% or more of the then outstanding common
          stock of such Member;

                    (3) The execution by a Member or any subsidiary thereof of
          an agreement with any person (other than the other Member) to (i)
          merge, consolidate or otherwise reorganize with or into one or more
          entities that are not subsidiaries of such Member, as a result of
          which less than 50% of the outstanding voting securities of the
          surviving or resulting entity immediately after the consummation of
          such transaction are, or will be, owned by shareholders of such Member
          immediately before such reorganization (assuming for purposes of such
          determination that there is no change in the record ownership of the
          Member's securities from the record date for such approval until such
          transaction is consummated and that such record holders hold no
          securities of the other party or parties to such a transaction), (ii)
          sell, lease or otherwise dispose of assets of such Member or its
          subsidiaries representing 50% or more of the consolidated assets of
          the Member and its subsidiaries or (iii) issue, sell or otherwise
          dispose of (including by way of merger, consolidation, share exchange
          or any similar transaction) securities representing 50% or more of the
          voting power of such Member;

                    (4) The acquisition by any person (other than a Member) of
          beneficial ownership (as such term is defined in Rule 13d-3 under the
          Securities Exchange Act of 1934, as amended (the "Exchange Act")) or
          the right to acquire beneficial ownership of, or any "group" (as such
          term is defined under the Exchange Act) shall have been formed which
          beneficially owns or has the right to

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          acquire beneficial ownership of, 20% or more of the then outstanding
          common stock of a Member; or

                    (5) The failure at any time, during any period of two
          consecutive years, of individuals who at the beginning of such period
          constituted the Board of Directors of a Member, for any reason, to
          constitute at least a majority thereof, unless the election, or the
          nomination for election by such Member's shareholders, of each new
          Board member was approved by a vote of at least three-fourths of the
          Board members then still in office who were Board members at the
          beginning of such period (including for these purposes, new members
          whose election or nomination was so approved).

     e.   GROWTH MULTIPLE:  Means, upon the occurrence of an Exercise Event, the
          growth, stated as a percentage, of the aggregate sales generated by
          the United States electronic components distribution industry from
          August 8, 1996 through the date of such Exercise Event, as determined
          by agreement of the Members or, if the Members are unable to so agree,
          then by a Neutral Party selected in accordance with Section 12.17(c).

     f.   INCREMENTAL SALES:  Means, upon the occurrence of an Exercise Event,
          the difference between (i) the aggregate net sales by both Members
          from the provision of Value Added Services for the twelve full
          calendar months immediately preceding the month in which the Exercise
          Event occurred, minus (ii) the product of the Aggregate Baseline
                          -----
          Sales, multiplied by the Growth Multiple.

     g.   VALUE ADDED SERVICES:  Means those types of materials management
          services that are intended to be provided to the Members by the LLC,
          including, without limitation, kitting, turnkey, autoreplenishment and
          related services.

2.   Amended Definitions.  The following definitions shall be, and hereby are,
     -------------------
amended as follows:

     a.   CHANGE IN CONTROL TERMINATION FEE:  Equals the greater of (i) $25
          million, or (ii) the amount calculated pursuant to the Termination
          Formula, but in no event shall such Change in Control Termination Fee
          exceed $40 million.  Notwithstanding the foregoing, unless otherwise
          agreed to in writing by the Members prior thereto, the Change in
          Control Termination Fee shall equal $0 in connection with any Exercise
          Event that occurs after August 7, 2001.

     b.   TERMINATION FORMULA:  The Termination Formula shall mean, upon an
          Exercise Event, fifty percent (50%) of the product of Incremental
          Sales, multiplied by one hundred thirty percent (130%) of the
                 ----------
          Acquisition Multiple.

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3.   Deleted Definitions.  The following definitions, and any and all references
     -------------------
to the defined terms in the Agreement, shall be, and hereby is, deleted:

     TO WARRANT AGREEMENT
     WARRANT AGREEMENT
     WARRANT VALUE

4.   Termination Notice Upon Exercise Event.  It is the intention of the Members
     --------------------------------------
that either Member be permitted to terminate the LLC upon the occurrence of an
Exercise Event with respect to a Member by providing a Termination Notice to the
other Member, in accordance with, and subject to the terms and conditions
contained in, the Agreement (including, without limitation, the payment of the
Change in Control Termination Fee by the Event Member pursuant to Section
11.1(c) of the Agreement).  In furtherance of the foregoing, the Agreement shall
be, and hereby is, amended as follows:

     a.   The first sentence of Section 11.1(a)(xi) shall be, and hereby is,
          amended by the insertion of the phrase "or by the Event Member"
          immediately following the phrase "by the Member other than the Event
          Member (also a "TO Member")".

     b.   Section 11.1(c)(i) shall be, and hereby is, amended and restated in
          its entirety as follows:

               "(i) Upon the occurrence of an Exercise Event with respect to an
               Event Member and the subsequent delivery of a Termination Notice
               by the TO Member or the Event Member pursuant to Section
               11.1(a)(xi) at any time during the term of the LLC, or if later:
               (i) prior to the first anniversary of a Deadlock, upon
               dissolution of the LLC pursuant to Section 11.1(a)(vi) (other
               than an Improper Deadlock), or (ii) prior to the first
               anniversary of the effective date of this Agreement, upon
               dissolution of the LLC pursuant to Section 11.1(a)(ix), such
               Event Member shall pay to the TO Member in cash an amount equal
               to the Change in Control Termination Fee, which amount shall be
               payable within thirty (30) days following the occurrence of the
               Exercise Event."

5.   Extension of Time.  Wyle and Marshall hereby agree that the "Associated
     -----------------
Agreement Negotiation Period" (as defined in Section 2.5 of the Agreement) has
been extended through (and including) March 31, 1997 with respect to the
agreements previously referred to in the Agreement as: (i) the Systems License;
and (ii) the [Sub] Lease Agreement.


6.   Entire Agreement.  The Agreement, as amended by this Amendment, constitutes
     ----------------
the entire agreement between the parties pertaining to the subject matter hereof
and fully supersedes any and all prior or contemporaneous agreements or
understandings between the parties hereto pertaining to the subject matter
hereof.

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<PAGE>

7.   Full Force and Effect.  Except as expressly amended in Amendment No. 1,
     ---------------------
Amendment No. 2 and this Amendment, the Agreement shall remain in full force and
effect.

8.   Counterparts.  This Amendment may be executed in any number of
     ------------
counterparts, each of which shall be deemed an original, but all of which shall
constitute one and the same instrument.

IN WITNESS WHEREOF, the undersigned have duly executed this Amendment or have
caused this Amendment to be duly executed on their behalf as of the day and year
first set forth above.





                              WYLE ELECTRONICS,
                              a California corporation


                              By:   /s/ R. VAN NESS HOLLAND, JR.
                                    ----------------------------
                              Name:  R. Van Ness Holland, Jr.
                              Title: Executive Vice President and
                                     Chief Financial Officer


                              MARSHALL INDUSTRIES,
                              a California corporation


                              By:    /s/ Henry W. Chin
                                    -----------------
                              Name:  Henry W. Chin
                              Title: Vice President and
                                     Chief Financial Officer

                                       7