AL I GN MENT
WA R N I N G
DANGEROUS V OLTAGES A R E P R ESENT. U S E EX T R E M E C A U T I O N W H E N W O R K I N G O N T H E
T R A NSCEIVER W I T H COV E R S R EM O V E D . D I S C H A R G E A L L C A P A C I T O R S BY S H OR T I N G T O
G R OU N D W IT H A N I N SU L A T E D SCR EW D R I V E R . ETC.
CAUTION
N ever operate the transceiver in the
transmit mode without a matched antenna
or adequate dummy load. The power
amplifier tubes and
Pi
network compo
nents can be damaged if the transceiver
is operated without the proper load termi
nation.
G E N E R A L
T h e transceiver h a s been carefu l ly al igned a n d tested
at the factory and. w ith normal u sage. shou l d not re
q u i re other than the u sual attention given to electro n i c
eq u i pm en t . Serv ice or repl acement o f a major com ponent
may req u i re su bseq u en t rea l ign ment. but u nder n o
circu m stance shou ld real ign ment be attem pted u n less
the operation of the transceiver is fu l l y understood.
the m a l fu n ct ion has bern anal ized and defi n itely traced
to m i sal ign ment.
Service work should only be performed by ex perienced
person nel. using the proper test eq u i p m ent.
Capacitors, resistors, inductors, and transformer
adjustments should not be varied more than a few
degrees in either direction from their original
setting. If the adjustments require varying by an
appreciable amount, check for the presence of a
defect other than alignment .
EQU I P M E N T R EQ U I R E D
( 1 )
R F Signal Generator : Hew l ett- Packard Model 6 0 6 A .
o r eq u ivalent w i t h o n e volt output a t an i m pedance
of 50 ohms and a freq u ency coverage to 3 0M I-lz.
( 2 ) Vacu u m T u be Voltmeter ( V TV M ) : Hew l ett- Packard
M odel 4 1 0 8. or eq u ivalent V T V M w it h an R F probe
good to
4
() M Hz .
( 3 ) Du m m y Load : W aters M odel 3 3 4 A or equ ivalent
5 0 o h m s non- reactive l oad rated at · 300 watts
average pow er.
( 4 ) AF S ignal Generator : H ew l ett- Packard Model 2 0 0
A B. or equ ivalent.
( 5 ) A general cm·erage receiver coveri ng t h e frequency
range from 3 to
30
M Hz w i th
a
100
!\ Hz cal ib
rator.
R E G /CA L I B U N I T
( P B - 1 5 4 7 )
B I A S A D .J .
( V R 1 )
T. R Z E R O A D .J .
( V R 3 )
6V A D .J .
( V R , )
T102
T1 0 1 A
U N I T
( P B - 1 1 8 1 )
BM A D .J .
-
•
._
ALC A D .J .
( V R i T C i )
U N I T
F I X / R F P R O C E S S U N I T
(VR2)
( P B - 1 1 8 4 )
( P B - 1 534 )
Alignment Points-Top View
-
2 1 -
