Agilent-technologies 6613C Uživatelský manuál stáhnout pdf (Strana 35)

Troubleshooting - 3

J307 Voltage Measurements

Cable W9 connects J307 of the A1 Main Board Assembly to J207 of the A2 Interface Assembly. Table 3-4

provides a quick method of determining if the voltages between these assemblies are within the normal

range. If any of these voltages is outside the normal range, refer to the flowcharts to further troubleshoot the

circuit associated with the abnormal voltage.

Table 3-4. Voltage Measurements at J207 (A2 Interface to A1 Main board)

A1J207

Pin #

Signal Name CV Mode

Full Scale Voltage

No Load

CC Mode

Full Scale Voltage

Full Load

1 PM_INHIBIT (Enabled) 0 0

2 OV_SCR* +5 +5

3 OV_PROG +3.9 +3.9

4 FAN_PROG +2.8 +3.8

5 OV_DETECT* +5 +5

6 SW_POS (Norm) +5 +5

7 RANGE_SELECT (High) 0 0

8 OS_TRIM_NEG (COMP) +1.7 +1.7

OS_TRIM_NEG (SCPI) +4.0 +4.0

9+5Vs +5 +5

10 COMMON 0 0

11 COMMON 0 0

12 +15Vs +15 +15

13 -15Vs -15 -15

14 HS_THERM (@25C) +2.5 +2.5

15 FUSE +2.4 +2.6

16 IMON_H 0 +3.5

17 IMON_L

IMON_L (@20mA Out)

+4.8

+14.7

+4.8

18 IMON_P 0 0

19 VMON +4.8 +4.8

20 COMMON 0 0

21 COMMON 0 0

22 COMMON 0 0

23 COMMON 0 0

24 CV_PROG -4.8 -4.8

25 CC_PROG -4.8 -4.8

26 CC_DETECT* +5 0

27 CCN_DETECT* +5 +5

28 CV_DETECT* 0 +5

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 58 59

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