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Velleman
HPS40 Technical Doc
Press RIGHT ARROW KEY,
STEP 2, High level transient
Connect the (x1) probe to the
scope probe test output,
If necessary adjust CV2 until
pass is displayed
See trimmer location
Press RIGHT ARROW KEY,
STEP 3, AD/DC Test
Signal should jump up and
down.
No adjustment, if fail, check cir-
cuit around relay RY1
Press RIGHT ARROW KEY,
STEP 4, 1V/div calibration
Connect the (x1) probe with a
3.4Vdc supply
If necessary adjust RV2 until
pass is displayed
Press RIGHT ARROW KEY,
STEP 5, 0.2V/div calibration
Connect the (x1) probe with a
0.7Vdc supply
If necessary adjust RV1 until
pass is displayed
