LG GoldStar GSA-5300 User manual

GoldStar
COMPONENT
SYSTEM
SERVICE
MANUAL
CAUTION
SERVICING THE CHASSIS, READ THE ‘‘SAFETY
TIONS", IN THIS MANUAL
MODEL: GSA-5300
GST -5300
GSW-5300

CONTENTS
GSA-5300
SPECIFICATIONS . .
BLOCK DIAGRAM. .
SCHEMATIC DIAGRAM .
PCBLAYOUT......
WIRING DIAGRAM ...
IC INTERNAL DIAGRAM ..
EXPLODED VIEW
REPLACEMENT PARTS LIST
¢ ELECTRICAL..
© CABINET ...
GST-5300
SPECIFICATIONS
ADJUSTMENT .....
BLOCK DIAGRAM. .
SCHEMATIC DIAGRAM .
PCB LAYOUT
WIRING DIAGRAM ...
IC INTERNAL DIAGRAN ...
EXPLODED VIEW
REPLACEMENT PARTS LIST
¢ ELECTRICAL...
© CABINET
GSW-5300
SPECIFICATIONS
..
26
ADJUSTMENT
...
27
STANDARD
MAINTENANCE
.
Hie
BO.
BLOCK
DIAGRAM.............
.
3
4
35
36
37
SCHEMATIC DIAGRAM .
PCBLAYOUT........
WIRING DIAGRAM .....
IC INTERNAL DIAGRAM .
EXPLODED VIEW
* CABINET
© DECK MECHANISM...
REPLACEMENT PARTS LIST
¢ ELECTRICAL..
© CABINET....
* DECK MECHANISM...
SAFETY PRECAUTION
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
characteristics
are
often
passed
unnoticed
by
a
visual
inspection
and
the
protection
affored
by
them
cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
Replacement parts which have these special safety characteristics are identified in this manual, electrical
components
having
such
features
are
identified
by
a
ZX
in
the
schematic
diagram
and
the
parts
list.
Before
replacing
any
of
these
components,
read
the
parts
list
in
this
manual
carefully.
The
use
of
sub-
stitute replacement parts which do not have the same safety characteristics as specified in the parts
list may create shock, fire or other hazards.

INTEGRATED AMPLIFIER
GSA-5300
SPECIFICATIONS
Out
Power...
..50W
RMS
TD
ies
ahetecsse
0.3%
Frequency Response .. . -20—30KHz
Signal/Noise Ratio IHF/A Curve
Phono... .. 70dB
Others. . . . 88dB
Graphic Equalizer
100/350/1K/3.5K/10KHz
...
.
+10dB
Power
Source
.
AC
220V,
50Hz
Power
Consumption
...
175W
Dimensions
(W
x
H
x
D)
.
345
x
107
x
280(mm)
Weight
..6.0Kg
* Minimum continuous RMS output power per channel, both channels driven into 8 ohms fron 201 to
20,000Hz with no more than rated THD.

BLOCK
DIAGRAM
OuLNoD
L0WaE
sis—
NOOK
aTrun
SIAW
4GNO3]
s
fer
ee
g
ix
ix
ixk
coco
|S
_
:
[pune
a8
uanod|
|
32
L
b
5
3
4
NS
77
OUND
NOILONNS
“SouLNOD WA
uandans
ayia
(03
DIHdvuD
°
any
"31N
agave
any
ONOHS
OL
uaruans
[>
o
030
saraans
[>
0
waNNL
{!
1
AS
uai3aM 73A7
SNVUL U3)
wanvads
WHO 8
47
28a
[]
toro
wa
arua
HOLIMS
‘Ot
aana-uA
‘aNIZO3H
NODONSY
"300030
NOSOWSH
801
‘2010
wana
JOULNOD NOLLONNS
|
gazrwroa
o1Hd
wyO
A
vw
10291
JOULNOD
NOILONNS
HOLIMS
OOTVNY
rorot
O
on
ONOHA
wanna
xn
na
—O
avd
woAvoIGN!
NOTIONS
PET
TaNNYHO
MOT3@
SY
aNVS

SCHEMATIC DIAGRAM
402
RiREae
~
a
a
=
:
as
be
:
z
aint
aad
Sf Spay phe af agaga zag ett

PCB LAYOUT
=
3 a
"|
i
aL
fee
C
Vick oe MC, 8
ee
=
CW
a
a
5 azO@e
Quik
%
Wo
eles
we ah) SEV |.
ern, Se | (|
—
¥
‘te
*
?
ine
piers
|
ee
RRs
ne
Eee
BS,
we
ta,
Sila
Se
=
ome
a
Pt
Pine
ee an OE
a”
Moe
|
ir
Sil Z
wel URS
moe)
fiw
Se
"
% &
:
=
os
iHess
age
es
ae
SE
aS
Mod
iJ
2
F501_125V
3A
ox.
:
An
os
:
20
=
;
&|
d
:
bs
|
eae
"WL
ys
ea
>)
Se
Bin
BS
“E
Es
=
/
[E
Set
Seowe|
|
(ecto
:
Siew
oe
bea
oe
Boa
Ud)
;
j
4
r™
ala
Se:
Oe
i
wie
i
|
|
Bg)
|
i
me
mies
|
ie!
GG
Ee
i
ae
Ei
ve:
Sh
ce
eee
eee
gl
|
ee
#
%
=
ic
eno
au
4
i
pele
es
if
i
OP
:
Cae
oo
=
te
oo
8
R207
ae
Salle
=
©
all
cam
Se
ea
|

WIRING
DIAGRAM
sbi:
ay
greg,
(MM

IC INTERNAL DIAGRAM
1C101, 104, 201, 308 KA4558
1C103 TC9153AP
IC105 TC9149P cx
1C202 TC9148P
I
i]
i

1C301, 302 KA2223
Gy
BIAS vec OUTPUT NF INPUT NFS BASES
1C401 STK4191
Rin

EXPLODED VIEW