Hameg HM1004, Service Manual

Page: 41 / 60

Subject to change without notice
40
Name, Meaning and Type of signal
Name Type of signal Board Meaning
62 START-A digital MB start timebase generator A
63 START-B digital MB start timebase generator B
64 START-HO digital MB start holdoff time
65 SWEEP-A analog MB timebase generator A output
66 SWEEP-B analog MB timebase generator B output
67 SYS-REF 2.5V MB, AT system reference
68 TBA ADJ analog 8 bits MB calibrating voltage for timebase A
69 TBA-ON MB timebase A
→
X final amplifier
70 TBA-VAR 10 bit MB timebsae A variable
71 TBB ADJ analog 8 bits MB calibration voltage for timebase B
72 TBB-ON digital MB timebase B
→
X final amplifier
73 TBB-VAR analog 10 bits MB timebase B variable
74 TBS digital MB signals the sawtooth maximum (0.5V) in AUTOSET condition
75 TR EN digital MB prepared for digital board
76 TRACE-DA analog 8 bits MB Y position of the separated Y-Signal
77 TR-A-IN MB trigger signal A
78 TRA-LEV analog 10 bits MB trigger level A
79 TR-B-IN MB trigger signal B
80 TRB-LEV analog 10 bits MB trigger level B
81 TRCOUNT digital MB Autoset: trigger counter: normal mode: trigger interrupt
82 ADJ analog 8 bits MB DC-AP at trigger amplifier output
83 TRGMP analog MB trigger amplifier operating point
84 TV-FIELD digital MB frame sync. pulse for TV triggering
85 TV-LINE digital MB line sync. pulse for TV triggering
86 TV-SLOP digital MB polarity TV signal
87 X/Y Signal MB X signal in X/Y mode, originates from channel 2
88 X/Y-ON digital MB control signal for X/Y mode
89 X-POS analog 10 bits MB X position voltage
90 Y1 digital MB channel switch
91 V1-INV digital MB control signal for Invert switch CH1
92 Y1-POS analog 10 bits MB Y2 position voltage
93 Y2 digital MB channel switch
94 Y2-INV digital MB control signal for Invert CH2
95 Y2-POS analog 10 bits MB Y2 position voltage