Philips PM32671 Service Manual page 198

Measuring osci I loscope :
0.1
20
DC input coupling
Oscilloscope under test:
20
Adjust the DTB t o
Select A L T TB mode
S22
Depress A of
Measuring oscilloscope:
0.2
0.2 msldiv.
DC input coupling.
Oscilloscope under test:
Adjust the DTB t o 20 psldiv.
Select DTB mode (S2).
Measuring oscilloscope:
0.1 Vldiv.
0.5 rnsldiv.
DC input coupling.
Oscilloscope under test:
20
Adjust the DTB t o
Select DTB mode
9-1 1