Repairtools - Fluke PM3082 Service Manual

CORRECTIVE MAINTENANCE PROCEDURES
8.12.4 Repair tools
8.12.4.1 General
Under the softkey 'REPAIR TOOLS', tests can be selected concerning the exchange of information
in the area around the microprocessor:
- Data exchange between keys/rotaries and microprocessor.
- Data exchange between microprocessor and the devices that control the oscilloscope circuits.
Tests can be selected with a softkey pair. A test can be activated with toggle softkey 'on off'. Data in
connection with the tests is displayed in the viewing area as two lines of information. The last setting
is present in the utmost right position of the lowest of the two lines.
8.12.4.2 Repair tools / ufo
With this test the proper functioning of the keys and rotaries at the front panel (ufo) can be tested.
Each control has its own number. There is also information given concerning the position occupied
by the controls. The tables below indicate the information from controls towards microprocessor. This
is separately listed for rotaries and keys.
Rotaries (L is rotation left to right, R is rotation right to left, X indicates the rotation speed):
ILLUM
POS CH2
POS CH4
FOCUS
POS CH1
POS CH3
Keys (A = autorepeat, M = more than 1 key pressed, X=P is function off, X=U is function on):
CAL
STATUS
TEXT OFF
UTILITY
Softkey 4
AMPL mV CH2
Softkey 2
ON CH1
DTB s
TRIG1
TB MODE
ALT CHOP
AMPL VCH3
TRIGGER MTB
50 ohm CH3
MTB s
CH3 + CH4
MTB ns
AMPL mV CH4
Note: the table with keys is based upon PM3094. In other oscilloscope versions (PM3082, PM3084,
PM3092) some of the keys are not present or have a different function.
L/ROX TEXT INTENSITY
L/R3X LEVEL DTB
L/R6X LEVEL MTB
L/R8X TRACE ROT
L/RBX 'delta'
L/REX X POS
XOO AUTOSET
X02 Softkey 5
X05 CH1 + CH2
X10 SETUPS
X13 AMPL mV CH1
X16
AMPL V CH2
X22
Softkey 3
X25
50 ohm CH2
X32 DTB trig
X35 INV CH2
X41 CURSORS
X44 TRIG2
X47
TRACE SEP down
X53 TRIG4
X56 ON CH3
X63 INV CH4
X66 AC DC GND CH3
X73 AC DC GND CH4
X76 AMPL V CH4
L/R1X TRACE INTENSITY
L/R4X HOLD OFF
L/R7X FOCUS
L/R9X TRACK
L/RCX DELAY
L/RFX
X01 STATUS LOCAL
X03 Softkey 6
X06
AC DC GND CH1 X07
X11
Softkey 1
X14
AMPLVCH1
X17
pin hole
X23 50 ohm CH1
X26 ON CH2
X33 BWL
X36 AC DC GND CH2 X37
X42 DTB ns
X45 AMPL mV CH3
X51 MAGN
X54
TRIG3
X57
TRACE SEP up
X64 50 ohm CH4
X67
RESET
X74
ON CH4
X77
8 - 1 5
L/R2X
L/R5X
L/R8X
L/RAX
L/RDX
X02
X04
X12
X15
X21
X24
X27
X34
X43
X46
X52
X55
X61
X65
X72
X75