Realistic trc-448 Service Manual page 14

STEP
CONTROL
SETTING
_
TEST
EQUIPMENT
,
TEST
EQUIPMENT
SETTING
ADJUST
REFER
TO
11
RF
METER
MODE — AM
CH-19
RF Power Meter
502 dummy load
VR-203 for same reading
on built-in meter as
power meter indication
Fig 3
12
MOD
IND
.
MODE — AM
CH-19
RF Power Meter
502 dummy load
AF Generator
Monitor Scope
.
AF Generator
Freq. `. 1 kHz
Set the AF
Generator out-
put to get 30%
mod.
.
VR-208 for modulation
lamp just comes on
Fig. 3
13
HAFT-
MON ICS
MODE — AM
CH-19
RF Power Meter
502 dummy load
54 MHz Monitor
Receiver
(or Spectrum Ana-
lyzer if available)
TC-201 for min. reading
on the receiver
Fig. 3
RECEIVER SECTION ALIGNMENT CHART
CONTROL
SETTING
STEP
EQUIPMENT
TEST
EQUIPMENT
TEST
SETTING
ADJUST
REFER
TO
1
SQ Minimum
MODE — LSB or USB
Sweep Generator
Oscilloscope
Frequency:
7.8 MHz
T209 for max. output
and best wave form
Fig. 2
2
RF
SQ Minimum
MODE — AM
CH-19
RF Signal Generator
Oscilloscope
AC VTVM
8 2 load
Frequency :
27.185 MHz
MOD 30% at
1 kHz
T210, T211, T212
for max. output
Fig. 6
3
S-Meter
RF GAIN Maximum
MODE — AM
VR-206
RF Signal Generator
No signal
for zero
on the S-meter
Fig. 6
4
S-Meter
MODE — AM
RF GAIN Maximum
RF Signal Generator
Output : 100 µV
VR-205 for S9 on
the S-meter
Fig. 6
5
SQ
SQ Maximum
MODE — AM
RF Signal Generator
Oscilloscope
AC VTVM
8 2 Load
Channel 19
Output : 1 mV
MOD. : 30%
at 1 kHz
VR-209 to the point
where wave form
just shows
Fig. 6