Fluke PM6681 - Page 60

a
ENTER
V
(K*X+L)/M
X MAX
CK/X+LVM
X
MIN
DISPL
HOLD
MEAN
SINGLE
ST
DEV
MEMORY
AUX
FREQ
A FREQC
PER A RATIO
A/B RATIO C/B
P
WIDTH
A
TIMEA-B
PHASE A-B ARM
ARM
TOT A-B
MAN
TOT A FiSl B
TOT
A
J1 B DUTY FA
RISE/FALL
A
VOLT A MAX/MIN
STA+
STO+
REMOTE
EXT
REF
FILTER 150Ma
150M£i COMA
CHECK
HOLD
SRQ
LOBAT
10X
DCAC
BURST AUTO
PRF
DCAC
10X
OFF
Figure
5-16
Display readout, test
12.
Internal Control Signals
and
Display
(Functional Level
5b)
NOTE: If is not possible to run this test
before you have run
Keyboard test, Level 6.
-
Run DISPLAY test. Test 12.
-
Check the validity of the display
readout according to
Figure
5-16.
Keyboard
(Functional
Level
6)
”
Run
the Keyboard test,
Test 5.
“
Press a
pushbutton on the front
panel and check that the
I
displayed code are as in
the Figure
5-17.
NOTE: The
STAND
BY/ON and
LOCAUPRESET
pushbut-
tons
cannot
be tested with this
tool.
If you find any
fault, continue
with
traditional troubleshoo-
ting
techniques
and replace
defective circuits. See
also
Chapter
4,
Circuit
Descriptions,
Front Unit,
and
Keyboard
Scanning.
PM 6681
HIGH
RESOLUTION
PROGRAMMABLE
TIMER/COUNTER/ANALYZERI
50ps/300MHz
MENU
MENU
1 1
SINGLE RESTART STOP
ARM
II
STAT
LOCAL EXT
INPUT
A
liswApi
INPUTS HOLD OFF
PRESET
REF
FILTER
SOQ/IMfl
_T/X
A2^B
J"/T,
SOfl/IMO
COMA
CHECK
ON
m
29
2A
2B 2C IM
I
i32 03 34
3.5
36j
STANDBY ON
1X/1DX ACfDC
^
AC/DC
1X/10X
ST/STOP
SET
^
(37
'138
1
2F
2E
3B 3C ZD
3E
m
muM
S5 :jAil s ai)
m
oa
13
ffi ®
OB
oc-
A
DC-225MHI
B C
0.07.2.7GH2
DATA ENTRY
e g
Xn-1
i
TIME
HOLD STARTARM MATH
7
8 9
Xn-1
^
22 !23
m J
2
'
:ra m
o.e os
® a®
OE
BE
OD^
M=
I
CLEAR EE
I
ENTER
:15
ii'E
^Ve' recall
^
NOTE:
Switches the
counter
off.
Figure
5-17
Codes for each
key,
Test 5.
5-12
Troubleshooting