Keithley 199 Instruction Manual page 143

MAINTENANCE
Table 6-11. Model 199 Troubleshooting Mode (Cont.)
3OOK
3M
30M
REF HI
REF LO 00:
SENSES HI 04
SENSE LO
REF HI
REFJ.D
SENSE HI
SENSE LO
REF HI
REF LO
SENSE HI
SENSE LO
REF HI
SENSE HI
No Test
01
02
03
04
01
02
El
01
02
03
04
300M
SENSE-LO 01
XI
REF HI
02
xl E
SENSES HI 03 Xl K2
No Test 04
- -
3OmA DC
3ADC
3Ord.4 AC
SIG ZERO
CAL ZERO
CALM
SIG
SIG ZERO
CAL ZERO
CAL
SIG
01
02
03
04
::
03
04
ZERO 01
CAL
SIG ::
No Test
04
3A AC
ZERO
01
CAL
SIG ii
No Test 04
Xl K2, K3
2 ix
Xl K2: IQ
Xl K2, K3
Xl K2, K3
Xl K2, K3
x1 Ia,K3
Qll, U22C, U24C
Qll, U22C, U24C
Qll, U22.C U24C
Qll, U22C, U24C
Ql2, 43, U27yC, U24C
Ql2, Q3, U22C, U24C
Ql2, Q3, U22C; U24C
QIZ, Q3, UUC, U24C
;:
K2, K3
Ql2, QI3, U22C, U24C
K2,~ K3
Ql2, QI3, U22C, U24C
Xi
a K3
412, QJ.3, U22C, U24C
Xl K2, K3
Ql2, 413 U22C, U24C
K2
;: K2
xl K2
412, UUC, U24C U24B, Q32
QI2, U22C, U24C
435
QLZ, U22C, U24C
430
-1-l -
xl0 -
Xl -
Xl -
x10 -
x10 -
;; 1
x10 -
Xl
Xl
Xl
-
ii
Xl
-
-
-
-
-
-
Q26,Q36Q37,U23C,IJ23D,U23B
-
Q26,Q36,Q37,U23C,U23D,U23B
- Q26,Q36,Q37;v23C,UUD,U23B
-
-
QQ U22C, U24C U24B, Q32
412, LJ22C, U24C
435
Ql.2, U22C, U24C
Q3B
-
u23c
U25D, Q32
u23c
UUD, Q32
u23c
UUC, Q32
U23C
U22.B Q32
Q26, 436, 437
UUD, Q32
426, Q36, 437 U25D, 432
Q26, Q36, Q.37 U25C. 432
426, Q36,
QY
U228, 432
U23D, U23B, U23C
U23D, U23B, U23C
U23D, U23B, U23C
-
Multiplex
Switches Closed
U24B, Q32
Q35, 412
U24A, Q32
43'3
U24B, 432
Q35
:z
U24B, 432
435
$2 ~~
-
-
U25D, Q32
U25C, Q32
UUC, Q32
U25D, 432
U25C, Q32
U22C. Q32
6-20