Realistic TM-1001 - MPX ALIGNMENT

rus
MPX ALIGNMENT
FM ANTENNA
l"EFIM INAL
(300f1)
TUNER
OUTPUT
TP
#41PIN
Fí9.3
RF,
lF
At\lÞ
MPX ALTGNMENT
CONNECTION
Note:
8e sure
to disconnecl FM
Line
Corcl
Antenna
ancl NARBoW
B/wlDTH
button
shoulcj
be
in
the
,,out,,position
during
alignmenl.
ry
FM SIGNAL
GENERATOR
FM
DUMN4Y
ANTE'!NA
300ç¿
FM
IF
T201
VR201
vn202
MPX
tc301
VR3O1
VR302
TUNER
FRONT
END
1103,1101
L102.
TC101
TC102,
TC103
L1 04
S:TEREO
MOÞULATOB
AUDIO
.GENFR.ATOR
F
requ
ency
Counter
AC,
Voltmeter
Tune lo
center 0f band,
Signal
ûcnerator
ouTpuf ievel;
1000¡.rV, Deviation:
toünÊct
Siçnal Generaror
tn
Ft\4
Antenna
Tsrminal
76!<Hz,
at 100
7o
modulat'ion
of composite
sígnal
through
FM Oummy
Antenna
(300O).
S*t SËLËTTOfr
Switch to FM.
P
I9 kl'lz
{P}LtT
SrûNÁ,1}
ù{ûDUL,ATIGT*
LeNel
OUTPUT
INDICATOR
Connected
to
ADJUST
Refer
Fig,
4
ADJUST
FOR
NOTË
t
Garrier
cllly
Frequency
Counter
Connect
to
TP
i#41
pin]
of PCB
û063
and
grounrl
VR3O1
10 kHz
¿
'T
kl-.rz
Ccrnpo:it*
*
eha*n*l
,qC
Voltrn€þr
to
ûUTFUT
iack
of
ft
channel
Adjust
input for
audio output
of
about 0,75
V
Cornpos̀
1 kþ{z L
rhan*el
,4C
Voitmet¿r
to
0LjTPUT
jack
ol R
channel
VB3T?
Minímum
AC
Vsltmeter
reading
shor-rlci
be
ät
leasr
32
dB below
reading
in
step
2.
4
tcrnposit*
1 kþlz
R
chsnnel
AC
VolTmeTsr"to
OUTPUT
jack
of L
channel
v4302
Minimunl
Same
as
Step
2,
tri
you
did
n*tobt¿in-t2d8-r*edings;n
rlaps 3
and 4
{compared
wíth
step Z}, rearljust
VR302
uniil
you
obtain
-32d8
rcading i*r h¡r*h
*teps 3 *nd 6.
I