STR-GX290/GX390
Tuner
section
TABLE
OF
CONTENTS
FM
tuner
section
AM
tuner
section
Tuning
range
87.5-108
MHz
531-1602
kHz
Section
Titile.
Page
Antenna
External
antenna
terminals
75
ohms,
unbalanced)
j
minal
SECTION
1.
GENERAL
coccecccccceccecceseceeeceeeeeeseeenceenroneeees
3
sea
oso
SB.
ne.
re
4.5
uV(mo
SECTION
2.
IC
PIN
FUNCTION
-vcceeseesessseeseseeseseees
4
Germany
18.3
dBF,
2.25
pV
(mo-
SECTION
3.
ELECTRICAL
ADJUSTMENTS
--------------
6
quieting
no)
:
Germany
38.3
dBE,
45
uV(ster-
SECTION
4.
DIAGRAMS
eo):
AEP
4-1.
Circuit
Boards
Location
ceccssssscereeeseeceeeeeeteceeeenseecenens
8
38.3
dBf,
22.5
pV
(st-
4-2.
Semiconductor
Lead
Layouts
scccssrsscsersessesseeeeeeteeeserees
9
ereo)
:
Germany
Usable
11.2dBf
,
2
wV(IHF):
|
Loop
antenna:
4-3.
Printed
Wiring
Bosrds
—Main
Section—
ssr++rsssrrsrrrreers
11
Sensitivity
AEP
500
yV(at
1000
kHz)
4-4,
Schematic
Diagrams
—Main
Section—
-rrrrrr+rssss+eeesereees
15
11.2
dBf,
1
»V
(IHF):
sacraiy]
teeeeseseceeessecesccaanssccseasseesessssceeees
Germany
IC
Block
Diagram
18
4-5.
Printed
Wiring
Bosrds
—
Display
Section—
+*++++++++++++++"*
19
Signal-to-noise
76
dB(mono)
:
AEP
54
dB(at
50
mV/m)
ratio
70
dB
(mono)
:
Germa-
4-6,
Schematic
Diagram
—
Display
Section
—
we
veeeencencosnareces
23
ny
.
.
70
dB
(stereo)
:
AEP
IC
Block
Diagrams
25
66
dB
(stereo)
:
Germ-
4-7,
Schematic
Diagram
—
Tuner
Section—
srrrrrrrrresserseseeeeee
26
any
IC
Block
Diagrams
«+srcrsssteeeseeserssereeesseeer
econ
senceeeecere
28
Harmonic
0.3%
(mono)
0.5%(at
50
mV/m,
400
Hz
distortion
0.5%
(stereo)
at
1KHz
|
)
SECTION
5.
EXPLODED
VIEWS
Selectivity
60
dB
at
400
kHz
40
dB
at
10
kHz:
AEP
5-1.
Front
Panel
Section
-srrsrccsssserseseeereseceeceeese
te
eescseeesones
29
30
dB
at
9
kHz:
Germany
——————————
5-2.
Chassis
Sectionsrssrrrcrrrrrerersereseeccccssesccccccccescceserecees
30
Separation
45
dB
at
1
kHz
SECTION
6.
ELECTRICAL
PARTS
LIST
------+:----++++
31
Frequency
30
Hz-15
kHz*}°
dB
response
General
System
Tuner
section:
PLL
quartz—locked
digital
synthesizer
system
Preamplifier
section
:
low-noise
NF
type
equalizer
amp
Power
amplifier
section:
pure
complementary
SEPP
Power
requirements
220-230
V,
50/60
Hz
Power
consumption
100
W_
(STR-GX390)
Dimentions
SAFETY-RELATED
COMPONENT
WARNING!!
430
X
135
X
300
mm
(w/h/d)
Weight
|
COMPONENTS
IDENTIFIED
BY
MARK
/\
OR
DOTTED
STR-GX990:65
kg
LINE
WITH
MARK
A\
ON
THE
SCHEMATIC
DIAGRAMS
STR-GX200.60
kg
AND
IN
THE
PARTS
LIST
ARE
CRITICAL
TO
SAFE
OPERATION.
REPLACE
THESE
COMPONENTS
WITH
Accessories
supplied
SONY
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
FM
wire
antenna
(1):
AEP
model
only
SHOWN
IN
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUB-
AM
loop
antenna
(1)
LISHED
BY
SONY.
Remote
commander
(STR—GX390
only)
RM-S103
(1)
Sony
batteries
SUM-3
(NS)
(2)
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