Operating instructions

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Figure 36.
Power
SuTtplg PP-908/UnR,bottom
Symptom Probable
trouble
vtoe
;*Ì
Rr8?
Ft*i
ftr*$
Li*?
L
rn6
cil*'
61f 3
ftr*s
n,rús
î
t*9.
slú3
$r*1
ft1!*
T:*r
,
ì:{t1l
Jxtlg
6r**
ftt*4
*r*t
*1*3
Tt*S
at*t
,
**1*;
*ilt.'
No
signal output
in
receiver after
pre-
vious
checks have been
made.
With
r-f
signal
from
signal
generator
connected
throug}r
a
|Il-ppf
capaci-
tor to terminal
A,
and the
ground
of the signal
generator
connected to
terminal
G, there
is no
output in
loudspeaker
after
previous
checks
have been
made,
iì.eceiver
output
satisfactory with sig-
nal
generator
connector
to antenna
terminals,
but output weak on re-
ceived signals when using antenna.
Defective
h-f oscillator
stage.
Defective
tube
V1, Y2, ot: V3.
Defec-
tive
antenna
transformer,
r-f
ampli-
fiels. or mixer.
vt0
q
TM
A95
-37
oíew of chassìs,
with
couer retnoaed.
Correction
Check tube and replace
if
defective.
Use signal substitution
method
(par.
82) to locate
defective
part;
replace,
Check tubes.
Use signal substitrrtion
method
(par.
82) to localize
the
defective
part.
Repair antenna Ìead.
Checli and le-
pair
connections to antenna.
Frú4
cf
!ú
J
tOl
clot
rGO
3134
Open or
loose
antenna
leacl.
6l