Calibration passed but no readings


#1

So I soldered the kit yesterday but when I try to get some reading from a 1.5v batter or the VCO of my synth the oscilloscope just shows me background noise. The calibration runs fine however.

Readings:

IC1
1 0
2 0
3 0
4 0
5 0
6 0
7 -5.19
8 0
9 3.34
10 0
11 0
12 0
13 0
14 0
15 0
16 0

IC2
1 1.66
2 0
3 0
4 -5.19
5 0
6 0
7 -1.67
8 4.99

Readings according to this picture:

A 1.66
B 0.43
C 4.35
D 3.04
E -2.6
F -5.2

Calibration log:
Calibration results:

CH1 offset at 2V/div : 132 OK
Rounds : 5
CH1 offset at 1V/div : -1 OK
Rounds : 7
CH1 Y-position low, CH1_DAC1 32 37
Rounds : 6
CH1 Y-position mid, CH1_DAC0 128 132
Rounds : 5
CH1 Y-position high, CH1_DAC2 224 226
Rounds : 3

Plz help


#2

All the voltages are OK.
Also the calibration results are OK.

The problem may be in the input section of the scope.
The test lead may be broken or short circuited to GND.
Please use ohmmeter to check the test lead connection.
Check there is no short to GND.
Then check the connection between the test clip and C24.
Check also the ground lead is in connection to the GND of the board.

If all these OK, then check resistor R28 is properly connected.
Check also that no traces on the PCB are broken or short-circuited to GND.