Agilent Technologies Serial Numbers Change Model 6680A Model 6683A, Model 6681A Model 6684A

A

Backdating

Manual backdating describes changes that must be made to this manual for power supplies whose serial numbers are lower than those listed in the title page to this manual.

Look in the following table and locate your Agilent model. Then look at each serial number listed for this group. If the serial number of your power supply is prior to any of the serial number(s) listed, perform the change indicated in the Change column. Note that, several changes can apply to your supply.

Serial Numbers			Change	Serial Numbers		Change
		Model 6680A			Model 6683A
3318A	00111		1, 2, 4, 5, 6	3349A	00104	6
3318A	00116		3	3349A	00108	3
3502A	00126		7	3514A	00123	7
3619A	00167		9	3514A	00178	8
				3619A	00203	9
		Model 6681A			Model 6684A
3319A	00154		4	3339A	00103	5
3336A	00164		1	3405A	00108	3
3350A	00172		2, 6	3405A	00109	6
3350A	00183		5	3514A	00118	7
3350A	00193		3	3514A	00188	8
3506A	00218		7	3514A	00257	9
3619A	00383		9
		Model 6682A
3349A	00104		6
3349A	00108		3
3514A	00123		7
3514A	00168		8
3624A	00193		9

In Table 5-14 A10 Control Board		CHANGE 1
DELETE	C548, 0.1uF 50V, Agilent P/N 0160-4835 in parallel with RT500.
In Table 5-7 A3 FET Board		CHANGE 2
	C228 & 231, 2000pF 100V P/N 0160-2301.
DELETE
ADD	C228, 6800pF 100V P/N 0160-4904.
CHANGE	R247, from 75K P/N 0757-0462, to 42.2K 1% 1/8W P/N 0698-3450.
	R249, from 13.1K	P/N 0757-0444, to 7.5K 1% 1/8W P/N 0757-0440
	R250, from 60.4K	P/N 0698-3572 to 40.2K 1% 1/8W P/N 0698-3499.
	R253, from 12.5K	P/N 0698-6533 to 17.8K 1% 1/8W P/N 0698-3136.

C229, from 0.022uF P/N 0160-4918 to 0.01uF 100V Ceramic P/N 0160-4832.

Backdating 149