Teledyne 300 10.6.4Checking the DC power supply board, User Set Switches, 100 mV, Full Scale

V/F BOARD SWITCH SETTINGS - RANGES FOR ANALOG OUTPUT

User Set Switches

Switch	100 mV	1 V	5 V	10 V
	Full Scale	Full Scale	Full Scale	Full Scale
S1 (Recorder Output)	1, 6	1, 5	1, 4	1, 3
S2 (DAS Output)	1, 6	1, 5	1, 4	1, 3
S3 (Test Output	1, 6, 7	1, 5, 7	1, 4, 7	1, 3, 7
S4 (Spare)	1, 6, 7	1, 5, 7	1, 4, 7	1, 3, 7

TABLE 10.4

3.If Voltages and Jumper settings are correct, the V/F card is faulty and should be replaced.

10.6.4Checking the DC power supply board

A schematic and physical diagram of the DC Power Supply Board are shown on Drawings 015 and 016 in Appendix C.

The overall performance of the DC Power Supply Board can be checked by observing the value of the DCPS test functions. If this value, a composite of five regulator value recorded in Table 1-1 of this manual under Test Values, the outputs of the individual regulators should be checked by measuring for the following voltages:

1.Remove Plugs J8, J6, and J13 from the front of the Power Supply Module. Verify that the following voltages are present:

•+24VDC between J8 pins 2 and 4

•+24VDC between J6 pins 12 and 13

•25VAC between J13 pins 4 and 5

•15VAC between J13 pins 3 and 2

•38VAC between J13 pins 6 and 7

If any of these voltages is not present, the Power Supply Module is defective and should be replaced.

2.Confirm that the following voltages are present on the V/F Board:

•+5V between V/F TP 4 and V/F TP 5

•+15V between V/F TP 1 and V/F TP 3

•-15V between V/F TP 2 and V/F TP 3

•+12V between Mother Board Pad J13,6 and J13,7

If any of these voltages is incorrect, it is probable that the DC Power Supply Board is faulty and should be replaced.

Four Temperature linearization circuits are contained on the DC Power Supply board.The outputs of these circuits can be checked by measuring the voltages at test pointson the board as follows:

P/N 02163G1 Teledyne API Model 300 CO Analyzer Instruction Manual - Page 95