Performance Tests
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
4-75
H Press Close.
c. Set the vertical scale:
H Set the vertical SCAL E to one of the settings listed in Table 4--6 that
is not yet checked. (Start with the first setting listed).
H From the tool bar touch VERT and touch Position.
H Use the keypad to set vertical position to --3 divisions (press CLR,
3, -- ,andthenENTER, on the keypad).
H Set the Coupling to DC.
H Touch Offset.
H Use the keypad to set vertical offset to 0 V.
H Press Close.
Table 4- 6: Maximum input voltage limit
Scale
setting
Position setting
(Divs)
Offset
setting
Generator
setting
Readout
with 10X
attenuator
Limits
(without 10X attenuator)
CSA7404B, TDS7404B, TDS7254B, & TDS7154B
50 mV -- 3 0V +1 V +100 mV Coupling in CH readout
stays Ω
+3 V +300 mV Coupling changes to ground
1V -- 3 0V +5 V +500 mV Coupling in CH readout
stays Ω
+10 V +1.0 V Coupling changes to ground
TDS7704B
50 mV -- 3 0V +1 V +100 mV Coupling in CH readout
stays Ω
+3 V +300 mV Coupling changes to ground
1V -- 3 0V +6.5 V +650 mV Coupling in CH readout
stays Ω
+10 V +1.0 V Coupling changes to ground
d. Display the test signal: Set the generator to the level and polarity
indicated in the table for the vertical scale, position, and offset settings
you have made, or set the generator for the readout indicated in the table
for the vertical scale, position, and offset s ettings you have made. See
Figure 4--14.
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