Sanyo DXT 5500L - Page 3

ADJUSTMENTS
AM ADJUSTMENT
Adjusting
Connections
Position
of
V.T.V.M.
AM tst
Near max. capa-
IF Connect sweep gene- | Connect osciJloscope 455 KHz ? city of VC. at 9-20970 (Red)
rator to VC4. (400Hz 30% position with no
7 modulation) unrequired signal.
7)
Connect
standard
600
KHz
{400Hz
AM
ANT
9-21000
Ea
30%
modulation)
speeds
MW
OSC
9-20690
MW
Max.
|
loop antenna to out-
3
Connect
V.T.V.M.
to
1400
KHz.
(400Hz
|
put
terminals
of
SG.
30%
modulation)
r
.
speaker
terminais.
150
KHz
(400Hz
LW
Piace
reciever
2
feet
30%
madulation)
6.4
Repeat
adjustments.
PREPARE 1. Variable capacitor completely closed. 3. Connect sweep generator. SG, V.T.V.M. and oscilloscope.
2. Set the dial pointer to very left line dial scale.
FM ADJUSTMENT
AM ANT 9-21000
LW OSC 9-20720
Connections
Adjusting Position of : V.T.V.M.
| FM 1st
9-20890 (Violet)
9-20900 ‘Green)
Connect oscilios-
Connect sweep Near max. capa-
city of VC. at
10.7 MHz
(none modula-
cope to _—itest
point TP3.
generator to test
point TP1 throu- position with no
gh 0.01F.
tion) ;
unrequired signal.
Connect oscillos- FM DET
2 cope to test po int 9-20850 (Pink)
TP4. 9-20860 (Blue)
90 MHz FM ANT 9-20990
Connect FM SG. | Connect V.T.V.M. | (400Hz, 30% 90 MHz FM OSC 9-20461 Max.
RF Coit 9-20270
TC1
TC2 Max.
TC3
modulation}
106 MHz
(400Hz, 30%
modulation)
to FM ANT.
terminals.
to speaker ter-
minal.
PREPARE
1.
Variable
capacitor
completely
closed.
4.
Selector
switch
to
‘'FM"
2.
Set
the
dial
pointer
to
very
left
tine
of
dial
scale.
5.
Use
a
screwdriver
with
plastic
grip
for
all
adjustments.
3. Connect
sweep
generator,
-M
SG,
V.T.V.M.
and
oscilloscope.
Connections
Position of
Adjusting
tuning dial
circuit
Adjustment
67KHz :
9-20140 (Red) an
19KHz
9-20210 (White) | Max.
Add SUA signal to FM stereo SG.
to FM ANT. terminals. FM stereo
signal OFF.
Connect FM stereo SG. to FM
ANT terminals. 19KHz signal ON.
Connect V.T.V.M. to TP5
Near max. ca-
pacity of VC.
Connect V.T.V.M. to test
point TP6.
19KHz
pilot signal | cca signal OFF. ab pesition
with no
Connect
FM
stereo
SG
to
FM
ANT
|
Connect
V.T.V.M.
to
test
|
unrequired
SBKHz
terminals.
19KHz
signal
ON.
Main
|
Point
TP6.
Signal:
9-20220
(Black)
channel, sub channel signal ON.
Add 1000Hz signal from L Ch.
Connect FM stereo SG to FM ANT
terminals. 19KHz signal ON. Main
channel, sub channel signal ON.
Add 1000Hz signal from R Ch.
~
5.
Set
at
position
with
max.
channel
separation.
38KHz
9-20220 (Black)
38KHz
9-20220 (Black)
Connect V.T.V.M. to R
speaker terminal.
Connect V.T.V.M. to lL
speaker terminal.
FM stereo
signal
separation
PREPARE
1. Variable capacitor completely closed. 3. Selector switch to “FM AUTO”
2.
Connect
FM
stereo
SG.
and
V.T.V.M.
4.
Use
a
screwdriver
with
plastic
grip
for
all
adjusments.