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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 13G/A

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO RULE 13d-2(b).
(Amendment No. 2)*

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[ ] Rule 13d-1(b)

[ ] Rule 13d-1(c)

[x] Rule 13d-1(d)

Note: Six copies of this statement, including all exhibits, should be filed with the Commission. See Rule 13d-1(a) for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

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CUSIP No.  87305R109				SCHEDULE 13G	Page 2 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Circuit Holdings, L.L.C.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 3,403,254
			6	SHARED VOTING POWER 0
			7	SOLE DISPOSITIVE POWER 3,403,254
			8	SHARED DISPOSITIVE POWER 0
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,403,254
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 8.5 %
	12	TYPE OF REPORTING PERSON* 00

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CUSIP No.  87305R109				SCHEDULE 13G	Page 3 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Thayer Equity Investors III, L.P.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 1,356,663
			6	SHARED VOTING POWER 3,403,254
			7	SOLE DISPOSITIVE POWER 1,356,663
			8	SHARED DISPOSITIVE POWER 3,403,254
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,759,917
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.9 %
	12	TYPE OF REPORTING PERSON* PN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 4 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Thayer Equity Investors IV, L.P.
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 1,202,470
			6	SHARED VOTING POWER 3,403,254
			7	SOLE DISPOSITIVE POWER 1,202,470
			8	SHARED DISPOSITIVE POWER 3,403,254
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,605,724
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.5%
	12	TYPE OF REPORTING PERSON* PN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 5 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) TC Circuits, LLC
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 43,861
			6	SHARED VOTING POWER 3,403,254
			7	SOLE DISPOSITIVE POWER 43,861
			8	SHARED DISPOSITIVE POWER 3,403,254
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,447,115
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 8.6 %
	12	TYPE OF REPORTING PERSON* OO

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CUSIP No.  87305R109				SCHEDULE 13G	Page 6 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Frederic V. Malek
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 0
			6	SHARED VOTING POWER 6,006,248
			7	SOLE DISPOSITIVE POWER 0
			8	SHARED DISPOSITIVE POWER 6,006,248
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 6,006,248
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 15 %
	12	TYPE OF REPORTING PERSON* IN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 7 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Carl J. Rickertsen
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 0
			6	SHARED VOTING POWER 4,803,778
			7	SOLE DISPOSITIVE POWER 0
			8	SHARED DISPOSITIVE POWER 4,803,778
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,803,778
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 12.0 %
	12	TYPE OF REPORTING PERSON* IN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 8 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Paul G. Stern
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 0
			6	SHARED VOTING POWER 4,803,778
			7	SOLE DISPOSITIVE POWER 0
			8	SHARED DISPOSITIVE POWER 4,803,778
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,803,778
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 12.0%
	12	TYPE OF REPORTING PERSON* IN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 9 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Jeffrey W. Goettman
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 0
			6	SHARED VOTING POWER 4,605,724
			7	SOLE DISPOSITIVE POWER 0
			8	SHARED DISPOSITIVE POWER 4,605,724
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,605,724
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.5%
	12	TYPE OF REPORTING PERSON* IN

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CUSIP No.  87305R109				SCHEDULE 13G	Page 10 of 17 Pages
	1	NAME OF REPORTING PERSONS: I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) Daniel M. Dickinson
	2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
				(a)[  ]
				(b)[  ]
	3	SEC USE ONLY
	4	CITIZENSHIP OR PLACE OF ORGANIZATION United States of America
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
			5	SOLE VOTING POWER 0
			6	SHARED VOTING POWER 4,605,724
			7	SOLE DISPOSITIVE POWER 0
			8	SHARED DISPOSITIVE POWER 4,605,724
	9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 4,605,724
	10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
		[ ]
	11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 11.5%
	12	TYPE OF REPORTING PERSON* IN

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Item 1.

Item 2.

                    This Statement is being filed on behalf of each of the persons named in paragraphs (i) through (ix) below (collectively, the “Reporting Persons”), pursuant to their written agreement to the joint filing of this Statement. Except as stated otherwise, the following information is furnished with respect to each of the Reporting Persons:

Thayer Equity Investors III, L.P. (“Thayer III”) is the managing member of Circuit Holdings, L.L.C. Thayer Equity Investors IV, L.P. (“Thayer IV”), and TC Circuits, L.L.C. are members of Circuit Holdings, L.L.C. TC Equity Partners, L.L.C. and TC Equity Partners IV, L.L.C. are the general partners of Thayer III and Thayer IV, respectively. TC Co-Investors, LLC is the managing member of TC Circuits, L.L.C. TC Management Partners, L.L.C. is the managing member of TC Co-Investors, LLC. Messrs. Rickertsen, Malek and Stern are managing members of TC Equity Partners, L.L.C. and TC Management Partners, L.L.C. Messrs. Malek, Goettman and Dickinson are managing members of TC Equity Partners IV, L.L.C.

                    Each of Thayer Equity Investors III, L.P. and Thayer Equity Partners IV, L.P. is a Delaware limited partnership. Circuit Holdings, L.L.C. and TC Circuits, L.L.C. are Delaware limited liability companies. Each of Messrs. Malek, Rickertsen, Stern, Dickinson and Goettman is a United States citizen.

 

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CUSIP No. 87305R109		SCHEDULE 13G		Page 12 of 17 Pages

     The information in items 1 and 5 through 11 on the cover page(s) on this Schedule 13G is hereby incorporated by reference.

     Not applicable.

     Not applicable.

     Not applicable.

     Not applicable.

     Not applicable.

 

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CUSIP No. 87305R109		SCHEDULE 13G		Page 13 of 17 Pages

SIGNATURES

     After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

 

 

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CUSIP No. 87305R109		SCHEDULE 13G		Page 14 of 17 Pages

 

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CUSIP No. 87305R109		SCHEDULE 13G		Page 15 of 17 Pages

EXHIBIT LIST

*

Incorporated by reference to Exhibit A to the Schedule 13G/A of the Thayer Entities with respect to the Common Stock of the Company, filed on March 8, 2002.

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CUSIP No. 87305R109		SCHEDULE 13G		Page 16 of 17 Pages

EXHIBIT B

     Each of the undersigned hereby agree to file this schedule jointly pursuant to Rule 13-d-1(k)(l).

 

 

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CUSIP No. 87305R109		SCHEDULE 13G		Page 17 of 17 Pages