Fluke 900 - Manual (Page 30)

Seiftest FLUKE 900 SERVICE MANUAL
3.2 Running and Reading Individual Selftests
The individual selftest results indicate which specific lines or channels are failing. A full printout
of all failing individual results may be printed out as explained in Section 1.2. Altemativdy, a
single individual result may be viewed on the display by pressing the following keys after the
general poweron seUtest fails: ED(debug) ©(display) "test #"
ien ^ j . The individual result then
appears as £ 010 * bytes with a 1 indicating a problem.
BYTEO BYTEl
I
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
BIT: 76543210 76543210
BYTE2 BYTE3
I I
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
76543210 76543210
BYTEO
b7:X
b6:X
b5:X
b4: EXT LEAD
b3: PIN 1
b2: PIN 28
bl: PIN 2
bO: PIN 27
BYTEl
b7: PIN 3
b6: PIN 26
b5: PIN 4
b4: PIN 25
b3: PEST 5
b2: PEST 24
bl:PESr 6
bO: PIN 23
BYTE2
b7: PEST 7
b6: PEST 22
b5: PESf 8
b4: PIN 21
b3: PEST 9
b2:
PTN 20
bl: PEST 10
bO: PIN 19
BYTE3
b7:PIN
11
b6: PIN 18
b5: PIN 12
b4: PB4 17
b3: PEST 13
b2: PEST 16
bl: PIN 14
bO:
Pm 15
Refer to the individual descriptions of Section 3.3 for any bit assignments that may differ fixm
those generaEy used above. In particular, bits 5,6,7 of BYTE 0, which are not used for most tests,
may have a meaning which is noted for a specific test
3.3 Individual Selftest Descriptions
TEST 0
SLFT_CLIP
The SLFT_CLIP routine is used for verifying test clips. The test clip in question is inserted
into the Interface Buffer and the other end is inserted into the ZEF RD socket via the Test
Oip Verification Module. When the test is running, die size of the current test clip is
displayed. The failure information is displayed as follows (Only special bits are shown, all
others refer to tegular pin number):
BYTE 0 - B7 - Not used
B6- Not used
B5- Clip size code invalid
B4- Frequency reading invalid
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