Tektronix 442 Service Manual page 5

Fig.
No.
1-1
2-1
2-3
2-4
2-5
2-6
2-7
2-8
2-10
2-11
2-12
2-13
2-14
2-15
2-16
2-17
2-18
3-14
Page
442 Oscilloscope ..............08. viil
442 Oscilloscope dimensions......... 1-6
Commonly used power plugs ........ 2-2
Power switch locations on bottom of the
442 Le es 2-2
Power input fuse location on the 442 back
panel... ce ee ee ees 2-3
Crt Display and Power front panel controls
and connectors ..............-+-- 2-3
External Z AXIS INPUT connector on the
back panel of the 442 .............. 2-4
Controls and switches accessible through
the bottom of the 442 cabinet ........ 2-5
Vertical system controls ............ 2-5
Horizontal system controls .......... 2-6
Triggering system controls .......... 2-7
Probe Compensation ...........05. 2-9
Display of 0.5 V PROBE ADJ output signal 2-10
Measuring peak-to-peak voltage of a
wavefOrm . occ ee ee ene 2-11
Measuring instantaneous dc voltage with
respect to a reference voltage ........ 2-11
Measuring the time duration between
points on a waveform ......... 0006, 2-14
Measuring rise time ............08, 2-15
Measuring time difference between two
PUISES Po ee es 2-15
Measuring phase difference.......... 2-16
Phase difference measurement with an X-Y
display ... ee ee ee es 2-17
Sweep generator and sweep gate timing
diagram... . es 3-9
Foldback circuit action ..........004 3-10
Vertical deflection accuracy test setup .. 4-5
Bandwidth check test setup.......... 4-7
Triggering and Z-Axis input.check test
SQCtUD. 2 eee 4-9
Timing accuracy check test setup ..... 4-114
442 cabinet removal ............0-. 4-13
Moving Interface board to adjustment
access position .........0 0 eee nee 4-15
Low-voltage power supply adjustment
location. oe ee ees 4-17
Fig.
No.
4-8
4-9
4-10
4-11
4-12
4-13
5-9
Page
Interface board adjustment locations
(board shown in access position)...... 4-18
Vertical attenuator, preamplifier, delay line
driver, and CH 2 dc trigger level adjustment
locations .. 2.2... ee ees 4-21
Display of correct (idealized) attenuator
compensation
........-.-.0.0008-
4-21
Horizontal adjustment locations on A14
Horizontal Output board ............ 4-23
Horizontal adjustment locations on A12
Horizontal board and A114 Trigger Switch
on the A1i Trigger Switch board ...... 4-26
Cabinet removal...............0485.
5-1
Moving Interface board to access position 5-3
Color codes ...................-. 5-5
Semiconductor lead configuration ..... 5-6
Multi-pin connector holder indexing. ... 5-7
Pin connector re-installation in multi-pin
Holders . 6. ce eee 5-15
Shaft-knob assembly removal ........ 5-17
Attenuators, Attenuator Shift, Horizontal
Output, and Power Supply assembly
rEMOVAl 2. ee ee es 5-17
Interface, Trigger Switch, Horizontal, and
Timing (SEC/DIV switch) assemblies
rEMOVAl ww ee ee 5-19
The following illustrations are located on foldout
pages in Section 7 Diagrams and Circuit Board
Hlustrations.
A6—CH 1 Attenuator circuit board
component locations
A7—CH 2 Attenuator circuit board
component locations
Attenuator circuit board locations
442 Oscilloscope block diagram
A8—Vertical circuit board component
locations
Vertical circuit board location