Table of Contents
Advertisement
- Set the TIME/DIV switch S15 t o 0 . 1 ~ .
- Using C1206, R1217 and C544 (fig. 5.2.) adjust the square-wave response as straight as possible (fig. 5.6.).
- Set the AMPL/DIV switch S9 to 50mV.
- Apply to X2 (A) a square-wave signal of 300mV, frequency 1 MHz and with a rise-time
- Using C536 (fig. 5.2.) adjust the square-wave response as straight as possible (see fig. 5.6.).
-
Set the AMPL/DIV switch S9 to 2mV.
- Apply (via a 20dB attenuator, if generator output voltage is too high) t o X2 ( A ) a square-wave signal of
- Using C546 (fig. 5.2.) adjust the square-wave response as straight as possible (fig. 5.6.)
-
Check the bandwidth according t o paragraph 5.5.5.8.
5.5.5.4, HF
square-wave response channel
- Set the controls as indicated in fig. 4.1.
- Set the AMPL/DIV switch S11 t o 20mV.
- Apply to X4 (B) a square-wave signal of 120mV, frequency 1 MHz and with a rise-time
Set the TIME/DIV switch S15 to 0 . 1 ~ .
-
-
Using C744 (fig. 5.2.) adjust the square-wave response
- Set the AMPL/DIV switch S11 to 50mV.
- Apply t o X4 (B) a square-wave signal of 300mV, frequency 1 MHz and with a rise-time
- Using C736 (fig. 5.2.) adjust the square-wave response as straight as possible (see fig. 5.6.).
-
Set the AMPL/DIV switch S11 to 2mV.
- Apply t o X4 (B) a square-wave signal of 12mV. frequency 1 MHz and with a rise-time
attenuator, if generator output voltage is too high).
- Adjust with C746 (fig. 5.2.) the square-wave response as straight as possible (fig. 5.6.).
- Check the bandwidth according t o paragraph 5.5.5.8.
5.5.5.5. Square-wave response channel A (B) invert
- Depress A (B) of S1.
- Depress A (B) of S23.
-
Pull the NORMAL-INVERT switch S4 (S5).
- Apply a square-wave signal, frequency 1 MHz, rise-time
- Check the square-wave response of the inverted signal; if necessary readjust for an optimal result between
NORMAL square-wave and INVERTed square-wave by means of the procedure given in section 5.5.5.3. and
5.5.5.4.
5.5.5.6. Square-wave response trigger view via channelA and B and external trigger input
- DepressTRlGGER VIEW of S1.
- Depress AUTO of S3.
- Put MTB TIME/DIV switch S15 in position 0.05p/div.
- Put the AMPL/DIV switches S9 and S11 in position 10 mV/div.
NOTE: This part o f the procedure describes the square-wave adjustment via channel A and B. The procedure
steps o f channel
channel A must be carried out.
Depress pushbutton A (B) of S23.
-
- Apply a square-wave signal of 1 MHz/rise-time
A (B) input socket X2 (X4).
- Position the signal in the vertical mid
-
Adjust the square-wave response
- Depress
EXT of S23.
- Put MTB TIME/DIV switch S15 in position 0.2ms/div.
- Apply a square-wave signal of 2kHz/l,2 Volt to the external trigger input socket X5.
- Adjust the square-wave response as flat as possible with C1112.
Apply a square-wave signal of 1 MHz/rise-time
-
- Put MTB TIME/DIV switch S15 in position 0.05 p5ldiv.
- Adjust the square-wave response as flat as possible with C1102.
NOTE: Disconnect the contact bridge
rise-time
1 ns.
a
B
as
B
are mentioned between brackets behind those of channel A: first the steps for
1 ns giving a vertical deflection of 6 div. to the channel
of
the screen by means of MTB LEVEL control R6.
as
flat as possible by means of trimming capacitor C895 (C896).
1 ns/l,2 Volt to the external trigger input socket X5.
on unit
straight as possible (fig. 5.6.)
1 ns to input A (B).
9.
5-1 7
1 ns.
1 ns.
1 ns.
Ins (via
a
20dB
Advertisement
Table of Contents
