Tektronix 1L40, Instruction Manual

Page: 118 / 145

SECTION 8
DIAGRAMS
The following symbols are used on the diagrams:
Screwdriver adjustment
Front panel control or connector
Clockwise control rotation in direction
of arrow
<§>
>>
Refer to indicated diagram
Connection to circuit board made with
pin connector at indicated pin
Blue line encloses components located
on circuit board
IMPORTANT
VOLTAGE A N D WAVEFORM CONDITIONS
Circuit voltages were measured with a 20,000 S2/V DC VOM. All
readings are in volts and are measured with respect to ground.
Waveforms shown are actual waveform photographs taken with a
Tektronix Oscilloscope Camera, equipped with a projected graticule.
Each major division represents one cm.
Voltages and waveforms on the schematics (shown in blue) are not
absolute and may vary between instruments. Any apparent differences
between voltage levels measured and those shown on the waveforms
may be due to circuit loading of the measuring device.
The waveforms were obtained using a Type 545B Oscilloscope,
1 0
X
probe and a Type 1A 1. The system characteristics are as follows: Mini­
mum vertical deflection of
0.1
V/cm with the
1 0 x
probe attenuation
factor included. Frequency response - DC to at least 33 MHz.
Controls whose setting will affect a voltage or waveform are listed
on the individual diagrams where the effect would be noticed.
Input Signals
Voltages and Waveforms 200 MHz signal to the RF INPUT
connector. Second harmonic of
10 ns time markers was actually
used.
(Cont on next diagram)