Philips PM32671 Service Manual page 63

STEP
OBJECTIVE INPUT VOLTAGE
Sine-wave signal 1 kHz to
4.4.2. Sensitivity EXT
EXT input X5
Ampl. 1.2V
4.4.3. Pulse aberrations Square-wave signal 1 MHz,
Ampl. 120mV, rise time
1 ns, to input A (B)
Square-wave signal 1 MHz,
ampl. 1.2V, rise-time
to input EXT X5.
4.4.4. Trigger threshold Sine-wave signal IOkHz,
ampl. 200mV to input A
Time delay between
4.4.5. Square-wave signal 1 MHz,
vertical input dis- ampl. 1.2V, rise-time Ins to
played via A or B A (B) input and to EXT
and external input input
displayed via trigger
view.
4.4.6. Sine-wave signal 500kHz,
ampl. 120mV to input A
Sine-wave signal 500kHz
input A
to
Bandwidth EXT Sine-wave signal 500kHz,
ampl. 3V to EXT input X5
Sine-wave signal 500kHz
input X5
SETTINGS
-
Depress EXT of S23
-
Depress TRIG VIEW of
-
AMPLIDIV to 20mV
-
Depress TRIG VIEW S1
-
Depress A (B) of S23.
- Depress TRIG VIEW S1
- Depress EXT of S23
-
Depress TRIG VIEW S1
- Set AMPLIDIV to 0.2V
- Continuous control R7
-
AMPLIDIV to 0.2VlDIV
-
Depress ALTand TRIG VIEW of S1
-
-
S7
- Depress EXT of S23
- Depress TRIG VIEW S1
- AMPLIDIV to 20mV
-
Adjust the generator to arnpl. of the
...
input signal to 6 div. trace height
- Depress TRIG VIEW
- Depress EXT of S23
- Adjust the generator to ampl. of the
input signal to trace height 6 div.
...
Trace height 6 div. 3% 0.18 div.)
Trace height 6 div.
Pulse aberrations 10% p-p
Trace height 6 div.
Pulse aberrations 6%
Minimum triggered trace height
0.3 div. from screen centre
- Time delay between A
EXT (via TRIG VIEW) signal must be
6ns approx.
Trace height must be 4.2 div.
Trace height must be 4.2 div.
I
I
MEASURING RESULTS