Samsung RCD-1230 User manual

SERVICE
MANUAL
RCD -1230
SPECIFICATION
GENERAL
Frequency response
Speaker
Maximum output
Power source
Power consumption
Dimension
Weight
Headphone jack
RADIO
Frequency range
LF
Antenna
: 20~20000Hz
: Woofer :@ 100mm x 2(4 W)
: 2W(DC)/CH
: AC : See label rating
DC : 9V (Dx 6)
: 14W
: 560(W)X213(D)X180(H)mm
: 3.4Kg (Without batteries)
: g 3.5mm
FM : 88~108MHz
AM : 530~1705KHz(OPTION)
530~1605KHz
LW : 150~285KHz(OPTION)
SW : 6~18MHz(OPTION)
FM : 10.7MHz
FM : Telescopic rod antenna
AM : Ferrite bar antenna
TAPE
Track system
Recording system
Erasing system
Monitor system
Frequency response
Tape speed
Tape drive system
Tape loading system
Motor system
Signal to Noise Ratio
Separation
Total Harmonic Distortion
COMPACT DISC PLAYER
Frequency range
Signal to Noise ratio
THD
D/A Conversion
Design and specifications are subject to change upon improvement without prior notice.
4 track 2 channel
AC bias (DECK A)
Magnetic erasing (DECK A)
Variable monitor
Normal 50~10000Hz
CrO2/METAL (PB)
4.75cm/sec (Normal speed)
9.5cm/sec (High speed)
Capstan belt driven
Front loading
DC synchronous
2 speed motor (DC 9V)
40 dB
35 dB
2%
20 ~ 20,000Hz
82 dB (at 1KHz) with filter
0.1%
(at 1KHz with 30KHz L.P.F)
16 bits

CONTENTS
etal
MR
SSAPE
EY
PRECAUTION
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Seals
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9
MM
S
SERVICING
NOTE
i
osackencnsciassaseioses
cea
zenastus
adap
cuas
tas
chal
uusavhad
es
dadscak
oot
cat
aceaa
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acca
ea
Stan
ein
ea
Neceed
3
ME”
SOGATION-OF
CON
TROUG
x
ssocssesstosesntsinaso
sux
aases
ates
csceencns
td
ots
cues
cacausotut
ugceaauseeasencs
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dec
sax
ated
vtaaduasa
aK
oases
4
MI
DISASSEMBLY
INSTRUCTION
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6
M
DESCRIPTION
OF
LCD
SEGMENTS
.......0....ccscsscsssssssseecssessssssssssesssecsussssessuesssesasecsesasesasessesuassussussucsssssasessstessesessesescesecesees
8
HM
TROUBLE
SHOOTING
CHART
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9
MB
DIES
VME
D
vec
censtce
basco
viva
encen
ens
Breck
Dens
tpdyotlvau
sane
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tabs
bcasursoa
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asda
esed
nc
eats
to
susdts
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vaw
anes
decd
e
ancbeeestegcttee
17
1. MAIN & TUNER ADJUSTMENT
2. CD ADJUSTMENT
EC,
NBT
DAY
QUI
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24
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ede
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26
PCB
PATTERN
AND
MARKING
DIAGRAM
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28
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30
CB:DECK
EXPLODED:
VIEW
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32
EXPLODED:
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33

m
SAFETY
PRECAUTION
|
a:
1. CLASS 1 LASER PRODUCT
This
compact
disc
player
is
classified
as
a
CLASS
1
laser
product.
2. LASER WARNING LABEL
The
label
shown
below
may
be
affixed
or
not
according
to
country.
s
(UL)
(CSA)
(EU)
CERTIFIED ONLY TO CANADIAN
This Product Compiles with
ELECTRICAL CODE. CLASS1
DHHS Rules 21CFR, Sub
chapter J.At date of Manu-
CERTIFIE
EN
VERTU
DU
CODE
LASER
PRODUCT
CANADIAN
DE
LELETRICITE
SEULEMENT
facture.
sy
Location : Enclosure back.
(SCAN)
(EU)
UL : Manufactured for U.S.A Market.
CSA: Manufactured for Canadian Market.
EU __: Manufactured for European Market.
SCAN : Manufactured for Scandinavian Market.
ADVARSEL : USYNLIG LASER-
STRALING VED AB8NING,NAR
SIKKERHEDSAFBRYDERE ER
UDE AF FUNKTION UNDGA
UDSAETTELSE FOR STRALING.
Location
:
on
the
disc
clamper
or
inner
side
of
CD
door
or
nearby
CD
chassis.
3. LASER BEAM WARNING
ADVERSEL
—
USYNLIG
LASERSTRALING
VED
ABNING,
NAR
SIKKERHEDSAFBRYDERE
ER
UDE
AF
FUNKTION.
=
UNDGA
UDSAETTELSE
FOR
STRALING.
VARNING
—
OSYNLIG
LASERSTRALNING
NAR
DENNA
DELAR
OPPNAD
OCH
SPARR
AR
URKOPPLAD.
STRALEN
AR
FARLIG.
VARITUS
—
LAITE
SISALTAA
LASERDIODIN,
JOKA
LAHETTAA
NAKYMATONTA
SILMILLE
VAARALLISTA
LASERSATEILYA
CAUTION
—
INVISIBLE
LASER
RADIATION
WHEN
OPEN
AND
INTERLOCKS
DEFEATED.
AVOID
EXPOSURE
TO
BEAM.
4.
LASER
DIODE
SPECIFICATION
(OPTICAL
PICK-UP)
ee
®
Material
:
AlGaAs
=
@
Wavelength
:
760-800nm
®
Emission
duration
:
Continuous
®
Laser
Output
:
0.2mW
@
*
This
output
is
the
value
measured
at
distance
1.6mm
from
the
objective
lens
surface
on
the
optical
pick-up
block.
® Classification : CLASS 1
. WARNING FOR SERVICING
WARNING:
When
servicing,
do
not
approach
the
LASER
exit
with
the
eye
too
closely.
In
case
it
is
necessary
to
confirm
LASER
beam
emission,
be
sure
to
observe
from
a
distance
of
more
than
30cm
from
the
surface
of
the
objective
lens
on
the
optical
pick-up
block.
VARNING
:
Nar
underhaliningsarbeten
utférs,
narma
dig
forsiktigt
och
se
inte
pa
laserutstralningen
pa
f6r
nare
hall.
Ifall
det
ar
néddvandigt
att
betrygga
laserstralens
utstr6mning.
Var
saker
att
kontrollera
detta
fran
ett
avstand
av
mer
An
30cm
(11.81
inch.)
fran
den
objecktiva
linsens
yta
pa
den
optiska
utsandningspunkten.
ADVARSEL
:
Nar
repareringsarbejdet
udfoeres,
naerm
dig
forsigtigt
og
se
ikke
pa
laserudstralingen
pa
for
naer
hand.
It
ilfaeldet
at
det
er
noedvaendigt
at
bestemme
laserstralens
udstraling.
Vaer
sikker
pa
kontrollere
dette
fra
en
afstand
af
mere
end
30cm
(11.81
inch.)
fra
den
objektive
linses
overflade
pa
den
optiske
eS
udsendningspunkt.
VAROITUS
:
Silmia
on
varottava
viemasta
liian
labeiie
Laser-poistokanavaa
huoiion
aikana.
Jos
on
valttamaténta
varmistaa
Laser-Sateen
paastd,
pusyttels
sita
tarkasteltaessa
vahintaan
30cm
etaiyydella
optisen
lukon
objecktiivilinssin
pinnasta.
an

m SERVICING NOTE
Disconnect power supply.cord before separating cabinet for servicing as you may experience an electric shock.
Avoid repairing under direct sunshine and heat which may cause cabinet, transistor and IC to be transformed or misoperate.
Use a soft cotton swab moistened with warm water or neutral cleaner when parts of a unit need to be cleaned.
When replacing parts with safety features built in, be sure to use specified parts with same specifications only.
Avoid repairing the set near a TV or any other magnetic forces.
Disconnect the plug from wall socket during electric storm to reduce the risk of damage.
Be careful of electrostatic damage when replacing the control [C such as p-COM, LSI and pick-up.
Be sure not to separate the pick-up from the unit and not to touch the ALPC (Automatic Laser Power Control) circuit.
BNAARWON >
HANDLING THE OPTICAL PICK-UP
“ The laser diode in the optical pick up may suffer electrostatic breakdown because of potential static electricity from clothing
and your body.
The following method is recommended.
Place a conductive sheet on the workbench. (The black sheet used as wrapping for repair parts.)
Place the set on the conductive sheet so that the chassis is grounded to the sheet.
Place your hands on the conductive sheet. (This gives them the same ground as the sheet.)
Remove the optical pick up block.
Perform work on top of the conductive sheet.
Be careful not to let your clothes or any other static sources touch the unit.
“Pons
»
Be sure to put on a wrist-strap grounded to the sheet.
* Be sure to lay a conductive sheet made of copper etc. which is grounded to the table. :
> @) Wrist-strap
6
|
for
grounding
The unit
@ Conductive sheet

m@ LOCATION OF CONTROLS
1. FRONT PANEL
Peles see
12
15
16 17 14
SHUFFLE || |PROGRAM
12
1
INTRO
3. CD OPERATION LCD
2. REAR PANEL

1. FRONT PANEL 2. REAR PANEL
1. HEADPHONE JACK 18. BATTERY COMPARTMENT
2. VOLUME CONTROL 19. AC IN ~ SOCKET (MOUNTED ON SIDE)
3. TONE CONTROL
4. TAPE SEL BUTTON (CrO2 PB/NORMAL)/
MODE (FM-MONO/FM-STEREO)/ 3. CD OPERATION LCD
BEAT CUT BUTTON 1. INTRO INDICATOR
5. FUNCTION SELECTOR 2. SHUFFLE INDICATOR
(TAPE,RADIO OFF/CD/RADIO) 3. PROGRAM INDICATOR
DUBBING SPEED (NOR/HIGH) 4. REPEAT,ALL INDICATOR
6. TELESCOPIC ANTENNA 5. SYNC INDICATOR
7. HANDLE 6. PAUSE INDICATOR
8. CD DOOR 7. PLAY INDICATOR
9. PUSH OPEN BUTTON (CD) 8. TRACK NUMBER INDICATOR
10. BAND SELECTOR (FM/AM) 9. TIME INDICATOR
11. TUNING KNOB
12. SPEAKER (L,R)
13. CD OPERATION LCD
14. DECK OPERATION BUTTONS
RECORD BUTTON (DECK A ONLY)
PLAY BUTTON
REW BUTTON
F.FWD BUTTON
STOP/EJECT BUTTON
PAUSE BUTTON
15. CD OPERATION BUTTONS
SKIP & SEARCH ( I<, »bI ) BUTTON
PROGRAM BUTTON
MODE BUTTON
STOP BUTTON
PLAY/PAUSE BUTTON )
16. POWER INDICATOR
17. FM STEREO INDICATOR

Mi
DISASSEMBLY
INSTRUCTION
e
Be
sure
to
unplug
power
cord
and
remove
batteries
before
disassembling
the
unit.
CABINET
REAR CABINET
FRONT CABINET
POWER PCB TUNING ASS'Y
MAIN PCB
TAPE-DECK ASS'Y
CD PACK ASS'Y
1. CABINET (FRONT/REAR)
1) Release 7 screws (1)
@ 2) Split Front and Back cabinet
2. TUNING ASSEMBLY
1) Release 2 screws (2)
2) Remove tuning assembly

3. CASSETTE DECK ASSEMBLY
1) Retease 6 screws © from the Front Cabinet.
2) Remove cassette deck assembly.
Front Cabinet
4.
CD
PACK
ASSEMBLY
&
MAIN
PCB
1)
Release
2
screws
:
2)
Remove
CD
pack
assembly
from
the
Back
cabine
3)
Release
9
screws
4)
Remove
main
PCB.
5. TUNER PCB
1) Release 4 screws © .
2) Remove Tuner PCB.
fom

m
DESCRIPTION
OF
LCD
SEGMENTS
If
one
or
all
of
the
LCD
Segments
(see
segment
diagram
below)
don't
work,
check
if
IC7530
and
LCD
pins
are
properly
connected refering to the chart below.
iInTRo | [ SHUFELE ] [PRoeRAN] [RaPEar] Laut ]
()
(] »
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J

m@ TROUBLE SHOOTING CHART
1. RADIO CASSETTE SECTION
1) AC POWER INSENSIBLE
Xx
Check AC Cord Connection Replace AC Cord
O
Check setting of voltage
selector Switch
O
Check Fuse(OPTION)
Check DIODE RD701
RD704 (Power PCB)
Check Voltage of CW5
(Main PCB)
Check if LED lights
(Radio)
X
Replace Fuse
Replace DIODE Rectifier.
Check connection of CW5
and soldering
Check LED defect &
Soldering
2) BATTERY POWER INSENSIBLE
Check
Proper
Polarity
Install
battery
Properly
oO
X
Check if AC cord is plugged in set Unplug
O
Check Voltage of CW1
(Power PCB)
1. Check if Battery Spring Wire is cut.
2. Check battery contacts.
3. Check proper polarity positioning.
wt
A a ie te a it ac ie ies