Test Equipment Connections:
Refer to Figure
OSCILLOSCOPE . . . . . .
GENERAL
Connect to
through “Video
. . . . . . . . Connect AC power plug through the
Detector Test Block” shown in Figure
isolation transformer to power supply.
SWEEP GENERATOR . . . . . . . . . . . Connect the IF Video
Set Channel selector to the highest unused channel.
put through the Out Put Pad. (Refer to Figure
Preset
control to approximately midposition.
MARKER GENERATOR . . . . . . . . Connect as shown.
Set the Contrast control to maximum. Connect a
SIGNAL GENERATOR . . . . . . . . . . . . Connect as shown Produce
short clip lead between
and
of
signal.
BIAS SUPPLY . . . . . . . . . . . Apply
volts bias to
RF MODULATOR . . . . . . . . . . . . . . . . . . Connect as shown.
OUT PUT PAD . . . . . . . . . . . . . . . . . . . . . . . . . Connect as shown.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check to bias voltage.
STEP
ADJUSTMENT
SWEEP
MARKER
GENERATOR
GENERATOR
COMPONENT
PROCEDURE
1
Set the
control to
of its range.
2
Apply output of Sweep Generator to the RF
Set the
control to the
of it range.
3
Apply
bias to
4
Trans.
Alignment
Summary of Contents for 8C221
Page 28: ...PRINTED WIRING BOARD ASSEMBLIES I Figure 18 PWB A Component Side 28 ...
Page 29: ...Figure 19 PWBA Wiring Side 29 ...
Page 30: ...Figure 20 FWB B Component Side 30 ...
Page 31: ...Figure 21 PWB B Wiring Side 31 ...
Page 32: ... PWBF0491CE ...
Page 33: ...Figure 26 PWB E Component Side Figure 27 PWB E Wiring Side 33 ...
Page 34: ...Figure 28 PWM A Component Side Figure 29 PWM A Wiring Side 34 ...
Page 40: ... I 8 VPP W 1 2 WXJ H I 3 3 4Vpp H 1 4 6 4Vpp U I I 51 WPP t 0 1 ...
Page 46: ...S H A R P 46 ...
