Sharp CDK-475-W Service manual
CD-K475W
SHARP
O
ffiJo
DIGITAL
DOl
Manuf"ctured under license from Dolby Laboratories
ing
DOLBY, the double-D symbol
trademarks of Dolby Laboratories Licensing Corporation.
§@
AUDIO
DOLBY SURROUND I
PRO·
Corporation.'
LOGIC
'.
DO
and "PRO LOGIC" are
SERVICE
licens-
I
MANUAL
NO.S9878CDK475WI
CD-K475W
CD-K475W mini component system consisting of
CD-K475W
(GBOXS0015AWM2) and surround (GBOXS0016AWM2)
speaker system.
• In the
original
used.
mini
component
interestsofuser-safety
condition
andonly
parts
system,
the set
shouldberestored
identical
CP.K475,
to those
centre
speclfied
to its
be
The machine CD-K475W is a modification of CD-K477W by
providing the Sub Woofer circuit. Its performance and operation
are identical with those of CD-K477W. For details refex fo the
service manual (No. S8869CDK477WI) for CD-K477W.
CD-K477W
TEST MODE 16
EXPLANATION OF DOLBY SURROUND PRO LOGIC AND
EVALUATION METHOD 17
TROUBLESHOOTING 50
FUNCTION TABLE OF IC 54
Page
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL 2
VOLTAGE SELECTION 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR 2
SPECIFICATIONS 3
NAMES OF PARTS 4
OPERATION MANUAL 7
DISASSEMBLY 8
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT 11
NOTES ON SCHEMATIC DIAGRAM 12
TYPES OF TRANSISTOR AND LED 12
BLOCK DIAGRAM 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.w.BOARD 16
WAVEFORMS OF CD CIRCUIT 40
FUNCTIONTABLE OF IC 41
FL DISPLAY 42
PARTS GUIDE/EXPLODED VIEW
~
10
SHARP CORPORATION
---Thi-s·'doc£ume-nfhas
foraftersales
The
contents
been
publishedtcbe'used
service
only.
are
SUbjecttochange
Without
notice.
CDFK475.W
['
.",.TRE
'" SAFETY PRECAUTION
FOR
SERVICE MANUAL "
) WARNINGS)
AEL (ACCESSIBLE EMISSION
LEVELjOFTHELASER
POWEROUTPOTIS LESS THAN CLASS 1 BOT THECASER
""~p~~~~~~~1,9f::~~~L~~~N~~~~~A~~~6~~~~E~~~~~~NE~~~~1~~~TE~el~I~Z:;~p~6~:;gg~~~~~~
AGAINST EXPOSURE TO THE LASER BEAM,
1·WHEN THE CABINETIS REMOVED, THE POWER ISTURNED ON WITDOUT A COMPACTDISCIN POSITION AND THE
PICK·UPIS ON THE OUTER EDGE THE LASER
LOOK
INTO THE PICK-UP LENS.
2·
THE LASER POWER OUTPUT OF THE PICK·UP UNIT AND REPLACEMENT SERVICE PARTS ARE
" PRE·SET BEFORE SHIPMENT"
Dq
N01
ATTEMPTTORiO-ADJUSTTHE LASER PICK·UP UNIT DURING REPLACEMENT OR SERVICING. ,
"\
WILL
LIGHTFOR SEVERAL SECONDS TO DETECT A DISC. DO
ALL
3;UNDER NO CIRCUMSTANCES STARE INTO THE PICK·UP LENS AT ANY TIME. J
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE,
SPECIFIED HEREIN
CAurIO~,
,
oJ,,,,,;.,,
•
This
Mini
1
LASER
•
The
CLASS1LASER
the
rear
.•
U~,e
.ofdontrOI~;;.a#lG,~~~~~\S)ir
dures.
0lh~r, ttia;gtnO~~'§ljlei:ifi~~
hazardous
MAY
RESULT IN HAZARDOUS RADIATION EXPOSURE. j
...
CLASSl
APPAREILALASERDECLASiEl
PRDDUCTO.
Component
product.
cover.
f,!jqj<',t\ol')e?'P()s,y
LASER
'PRoDuct"··
tASERDECLASq
Systemisclassified'
PRODUCT
label is
p~~orrDi1nc~Pf
,~l?fei~
fEH,[.: ;;
Laser
Diode
Material:
Wavelength:
Emission Duration: continuous.'
Laser
as a
CLASS
located
I
on.
proce-
m<:iii~~ult
Le
i
in
Properties
GaAIAs
780
nm "
Output: max, O.6.I11W
'\,
NOll,
FACTORY!
-------"
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i
j
i
"i
"
j'
)
As
the
laser
beam
harmfultothe
cabinet.
Refer
usedinthis
eyes,donot
servicingtoqualified
compact
attemptto
disc
dlsasseinble
personnel,
o
.'.
:~•
player
only.
i;
is
the
,
VARO ! Avattasssa ja suojalukitus onltettaessaolst alttiina nakj/matlOmalle lasersateilyIle.AI;ikatso sateeseen.
VARNING! Osynlig laserstralning nar denna del
al
oppnad ochsparren ar urkopplad, Betralda ej stralen,
•
""'
.. ,;
.1"')'.'
,j",
,
•.•
JC':
VOLTAGESELECTION
The
voltage selector is located
selector in either
direction until the correct voiiaQeiigure is displayed in the window nexi, to
011
the AC voltage selectorbox.
Ifadjustmenlis
necessary,
: I
useascrewdfryerinorper\oturr
the
adjustmeritscr!!w.:./ '.
/'!
I"
QACCA0001AWOO.
(cJ~
.,
QACCE0008AWOO
'",
the
'
..
Figure 2 AC POWER SUPPL
YCORD
-2-
AND AC PLUG ADAPTOR
SPECIFICATIONS
CD-K475W
General
•
Power source:
Power consumption:
Dimensions:
Weight:
Amplifier
•
Output power:
Output terminals:
Input terminals:
•
Tuner
Frequency range: FM; 88 - 108 MHz
•
Cassette
Frequency response: 50-14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB
Wow and flutter:
section
section
deck
AC 110/127/220/230-240 V,
50/60 Hz
160 W
Width; 270 mm (10-5/8")
Height; 316 mm (12-1/2")
Depth; 343 mm (13-1/2")
10.2 kg (22.5 Ibs.)
PMPO; 1200 W
(Front)
MPO; 200 W (100 W
% T.H.D)
(10
RMS; 100 W (50 W
% T.H.D)
(Centre)
MPO; 50 W (10 % T.HD)
RMS; 25 W (10
(Surround)
MPO; 50 W (total) (10 % T.H.D)
RMS; 25 W (total) (10
Front speakers; 8 ohms
Centre speaker; 8 ohms
Surroundspeakers; 16 ohms
Pre out (Sub woofer); 280 mV/47
kohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Video/Auxiliary (audio signal) x 2;
500 mV/47 kohms
Microphone 1/2; 1 mV/4.7 kohms
SW2; 9.5 - 21.85 MHz
SW1; 3.2 - 7.3 MHz
531
MW;
section
50 dB
0.15
- 1,602 kHz
(TAPE
(TAPE
playback)
%
(WRMS)
1, playback)
2, recording/
+ 100 W)
+ 50 W) (10
% T.H.D)
%
TJiQ)
CD-K475W
•
Compact
Type: 3-disc multi-play compact disc
Signal readout:
D/A converter:
Frequency response:
Dynamic range:
CP-K475
•
Front
Type: 3-way type [130 mm (5-1/8")
Maximum input power: 100 W
input
Rated
Impedance: 8 ohms
Dimensions: Width; 190 mm (7-1/2")
Weight: 3.0 kg (6.6 Ibs.)/each
GBOXS0015AWM2
Centre
•
Type: 100 mm (4") fUll-range speaker
Maximum input power: 50 W
Rated input power: 25 W
Impedance: 8 ohms
Dimensions: Width; 262 mm (10-5/16")
Weight: 1.4 kg
GBOXS0016AWM2
•
Surround
Type: 100 mm (4") fuli-ranqe speaker
Maximum input power: 25 W
Rated
Impedance: 16 ohms
Weight: 0.7 kg (1.5 Ibs.)/each
input
Dimensions: Width; 170 mm (6-3/4")
disc
player
speaker
power: 50 W
speaker
power: 12.5 W
section
section
speaker
section
player
Non-contact, 3-beam semiconductor laser pickup
1-bit D/A converter
20 - 20,000 Hz
(1
90 dB
woofer, 50 mm (2") tweeter and
super tweeter]
Height; 316 mm (12-1/2")
Depth; 264 mm (10-7/16")
Height; 145 mm (5-3/4")
Depth;
section
Height; 123 mm (4-7/8")
Depth; 176 mm (6-15/16")
kHz)
201
mm (7-15/16")
(3.1
Ibs.)
Specifications for this model are subject to change without prior
notice.
-3-
CD'~K475W
CD-K475W
•
Front
panel
1.
(CD) Disc Tray
2.
(CD) Disc
3.{CpjDisc
4.
(co)
""1."-','\
5.
DblbyproLdgi~ltl~ic,!W'
6. (CD)
7. (TAPE2)
8.
(TAPE 2) Reve,rSll,I'IIQl!,e'.lndicator J(j',;:,J2'i
9. (CD) Play Indicator
10.
(CD) Repeat Indicator
11.
(CD) Pause Indicator :'::)i:,nel
12i'(TAPE;
i1i3'~1Tirh~t:',lFi'~'8bt-dj'16aibat~r~:-)W
14. Timer Play
15.
4-Speaker Indicator
16.
Sleep Indicator :eerlu
17.
Extrtr:Sass
18.
R~;;lIClI1;;~I'ayJIr\:di~ai~W;:
19.
(crjiTR~~~jMI'&e~Xr~'i~ator
20.
(TUNER)
21.
(TUNER)
22.
Karaoke Maker Indicator],,l»)
23:::Spectrllml AnalYzeD'iI
24. Function Selector
25.
Surround Mode
26.
Extra,B<!ss
27.
Voliime<qontron,
28.
diliStand-by: Bullon
29.
HeadphoneSockEitJ " ,
30.
Karaoke Maker Switch
31.
Microphone
~?,
I'IIlcrqp,t1.0r'l~
33.
Digita;' Echo Control
34.
Equalizer Selector/DemcI'Mode:BIlltbl)
35.
Clo!'~'E14"ql1'J:
36.
Sleep Bu,tqn
37.
(TAPE2)i Reverse ModeJButton
38.
(CD)
39.
Jog
~4:Q::~)~~Q[~~,~,"~~!C)~}~~~9n!):,
,41. (TAPE) Record Pause Blltton
'42; Balance Control Buttons
43.
Timer Button
44.
Memory Button
45.
(CD) Clear Button
46.
(CD) Track DownlReview Button
(TAPE 2) Fast Wind Button
(TUNER)
47.
(TAPE 2) Reverse Play Button
48.
(CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
49.
(CD) Track Up/Cue Button
(TAPE 2) Fast Wind
(TUNER)Tuning Up Button
50.
Editing Speed Selector Buttons
Num~'lr'§~I~c";El~,!!?n§iiJ
Skip
Button":,,
op~;Yciose:
O_':
..
~
_,,,:>,
Butio~':::;
\·_,-,·-,.".-':'-;_',,-,'
..:1
DiscNumbe;:lndicai~rs
Di~ecti~rj
2)J
Reci:l:rd,
Indicator-,V
,lndicator;i\::')i'ioJ
FM Stereo Indicator,.",.....
FM Stereo Mode
Button:'1'ib;'W
I ...
Sockll'liL:u:
,L\lvel qq!'trq!s
Pause:
Dial
Bdttbn'
Tuning Down Button
IPfliclltors:
!nif/cator,
iLji,;,';:/.f,I:-J!·"ll:;
,.'1,..
,;
,,'I'
lioi
::"','JOtJ
ti}:n
;),,:L
1n<lic.iit(jr
1)<)
Bu«~8~
Sel!',9~ClI
)"".0)1
",
OJ,
rill')
~l:Y,/I.,:::,'L,._"",IIL:
'1., ..,,:, •
Eluttons
:;.
n'
j
>-
].J.,T:
'if
':
,;'1)',')
'j;
,ih'W
»)
,I
I)),:,';
Button
j);JD'Ui]
:Oli?J:J"J':]
'~J
Yj'J
')1'1
,~iini:i~
N'AMES'OFPARTS
1
-,
,
t·):".,
. ,
;!JNlb
;
-."
)'JD
liT/':;D:\',':
,
,..J
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\
,rJ.1
"
i:~j_\:
,.,
'p'.
j "
,.~:
2829
35
363738394041
43 44 45 46 47 48 49 50
.,''')
,
~,>:
J
"
iW~:
3130
2
'3
.-
I
:~'i't
;
j
:,,.,
~,IJ·;~'j.,
P;\l
ro'''''.-I- 18
32
..
,)J
,:r
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L.j",,'
33
42
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" ;'.J
,,'
19
--,-r;
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,
34
f)
)
:i')IDll
J'.'IDLi
")
-4-
CD-K475W
1. (TAPE 1) Casselle Compartment
2. (TAPE
•
Rear
1. CD Digital Output Socket
2. Video/Auxiliary (Audio Signal) Input Sockets
3. Span Selector SWitch
4. Sub Woofer Output Socket
5. FM 75 Ohms Aerial Terminal
6. Aerial Earth Terminal
7. SW1/SW2IMW Aerial Terminal
8, AC Voltage Selector
9. AC Power Lead
10. Front Speaker Terminals
2) Casselle Compartment
panel
11. Surround Speaker Terminals
12. Centre Speaker Terminals
...
~
1
1
1
2
3
2
e::::
JF'
0 0
4
5
6
~-7
8
9
FRONT
SPEAKERS
..L.....
CP-K475
•
Front
1.
Super
speaker
Tweeter
2. Tweeter
3. Woofer
4.
Bass
Reflex Ducts
5. Speaker Terminals
GBOXS0015AWM2
•
Centre
1.
speaker
Woofer
2. Speaker Wire
3
4
1
2
.
10
1
"'.
11
'11---2
12
rCMl1---ll1- 5
GBOXS0016AWM2
I
•
Surround
1.
Woofer
--2~.
Speaker-Wire-
speaker
1
------
---------
-5-
CDFK415W
,~~
• Remote control
.i
1. Remote Control
2.
$~rrouhd
3.
T~si'To':'eB~tton
4.
Centre Level
Mode Selector BtlftOhS
Transmitte~
Butto/1S
LED
.
5. 8IJrround Level Buttons
• Tuner control section
6. Preset
• CD control section
7. Track Up/Cue Buftdn,
8. Track DowlJii:leview Blltton
9. Memory
10. Disc Skip 'Buttqn
11. Stop Butt6n i
12.
P/ay/Repe~t
13l'PauseBunQii~'
14]
Clear
15~
Random Buttbni
I ,
Lr~OW~
-,
,
-.1
"'.
"
".
":
B:utton,
,
Button
Butt!>"'
,. I I
;'
,
;"
Buttons
...•.
"-
'j
:'1
,:i,
2
3-H=:=.
21
====
.........
~
=
~
===
...
14'15'
161'718;19'
'"
ro ,J
j,
j1i
i
~
•
Tape
16; (TAPE
17;.(TAPE 2) Reverse
contro~'
2)ReCOr~
se~tio~
Pause Button
PlayButt~n
18. (TAPE 1/2) Stop Button
19. fIIAPE1) Play Button
(1iAPE
20. crAPE 2) Fast Wind
• COmmon section
2) For¥tard Plat: Button
B~ttons
21. El(tra Bass Button
22. Equalizer Mode Button
23. Function Selector Buttons
24. Balance Control Buttons
25. On/Stand-by Button .
26. Volume Up/Down Buttohs
27. Dimmer Button
,
22-Hl:~~~
23
====
24
25
...
-
==
4.
'--1'-/
20
·.26,
'21>,
-6-
,
J
, i
'I
I
SETTING THE CLOCK
In this example, the clock is set for the 24-hour
,(0:00)system.
CLOCK
L
o
STAND'BY
MEM0RY
2
3
4
r
....
I
0:00
5
6 1
71
8
91
Jog dial
TUNING
('V
-")
" \ r I ,..
rl
nru
LLULJ\
/ I I \ -,
,
, ,
,,
rtri
1
1
_AM
t t
'
I '"
12:00_AM
U'UU
, ,
-, ,
nnn
u·uu
, ,
rtrt
U'UU
, ,,
ri
' -,
!
,
,,
, ,
,
ri
,, ,
lnnn
tU'UU
I ! \
Innn
'"
IU'UU
.L!
\
\ , r
I:
1n3n
IU'
I 1 \
,"
1n'3
IU'
U
n
U
'"
0:00
1 Press the ON/STAND-BY button to enter the stand-by mode.
2 Press the CLOCK button.
3 Within 5 seconds, press the MEMORY button.
4 Tum the jog dial to select the time display mode.
"0:00" -+ The 24-hour display will appear.
"AM 12:00" -+ The
"AM
0:00'
• Note that this can only be set when the unit is first installed
or
it has been reset (see page 33).
(O:OO
- 23:59)
tz-tour
(AM or PM 12:00 - 11:59)
-+ The 12·hour display will appear.
(AM or PM 0:00 - 11:59)
display will appear.
5 Press the MEMORY button.
6 Adjust the hour by tuming the jog dial.
• When the jog dial is tumed one click clockwise, the time
increase by 1 hour. When it is turned one click anti-clockwise,
the time Will decrease by 1 hour.
Keep turning the jog dial to change the time continuously.
• When the 12-hour display is selected, "AM" will change automatically to ·PM".
7 Press the MEMORY button.
S Adjust the minutes by turning the jog dial.
• When the jog dial is turned one click clockwise, the time will
increase by 1 minute. When it is turned one click anti-clockwise, the time will decrease by 1 minute.
Keep turning the jog dial to change the time continuously.
• The hour setting Will not advance even if minutes advance
from "59" to "00".
9 Press the MEMORY button.
• The clock starts operating from "0" seconds. (Seconds are
not displayed.)
Note:
• In the event of a power failure or when the AC power lead
is disconnected, the clock display will go out.
When the AC power supply is restored, the clock display win
flash on and off to indicate the time when the power failure
occurred or when the AC power lead was disconnected.
If this happens, follow the procedure below to charge the
clock time.
To change the clock time:
When
the
unit
Is In the stand-by
Q)press
the MEMORY button.
@Perform
When the
Q)Press
@Within
@Perform
To
Press the CLOCK button.
• The time display will appear for about 5 seconds.
To change the time display mode:
Q)Perform
@Pertorm
steps 6 - 9 above.
unit
Is on:
the CLOCK button.
5 seconds, press the MEMORY button.
steps 6 - 9 above.
see
the time display:
steps 1 - 2 in the section "RESETTING THE MICRO-
COMPUTER", on page 33.
steps 1 - 9 above.
mode:
PREPARATION
wl1l
(Continued)
RESETTING
ON/STAND-BY
FOR USE
• FMIMW Interval (span)
The International Telecommunication Union (ITU) has established that
a 9 kHz interval between broadcasting frequencies of any MW
station. The illustration shows the 9 kHz interval zones (regions
1 and 3), and the 10 kHz interval zone (region 2).
Before using the unit, set the SPAN SELECTOR switch (on the
rear panef 10 MW tuning interval (span) of your
~·FF··i·i>n··I'·'·'··I·~··I··I··;-+'
~~~mam~~m.m~mm_~~~~
To change the tuning zone:
1 Press the ON/STAND-BY button to
nmmmmmm
rmmrmmrnm
mnmrrrmnmi
rmmlJlllJllffill
SELECTOR
5019
0.2m-6m
'(8'
THE
MICROCOMPUTER
SPAN
FMlMW
(kHz)
100110
iliiiD
-
- 20')
EQUALIZER
IDEMO
2 Set the SPAN SELECTOR switch to "50/9" for 9 kHz MW
3 Press the ON/STAND-BY button whilst holding down the
caution:
• The operation explained above will erase all
• Remote
Notes concerning use:
• Replace the batteries if the operating distance is reduced or
• Periodically clean the transmitter LED on the remote control
• ExpoSing the sensor on the main unit to strong light may
• Keep the remote control away from moisture, excessive heat,
Reset the microcomputer under the following conditions:
• To erase all of the stored
• If the display is not correct.
• If the operation is not correct.
1 Press the ON/STAND-BY button to
2 Press the ON/STAND-BY button whilst holding down
ttWdJ-
Caution:
• The operation explained above will erase all data stored in
member
countries should maintain ellher a 10 kHz or
enter
the stand-by mode.
interval (50 kHz FM interval), and
interval
(100
kHz FM interval).
bullon and the EQUALIZERIDEMO button.
memory
lncludlng
Clock
presets.
control
if the operation becomes erratic.
and the sensor on the main unit with a soft cloth.
interfere with operation. Change the lighting or the direction
of the unit.
shock, and Vibrations.
settings, and tuner and CD presets).
butlonand
memory
presets.
the EQUALIZERIDEMO butlon.
inclUding clock and timer settings, and
and timer settings, and tuner and CD
memory
'100/10"
contents (clock and
enter
the stand-by mode.
area
for 10 kHz MW
....
e1ata
stored in
timer
lhe"-
tuner
and CD
o
"C
m
::c
!t
s
z
s::
>
z
~
r-
o
9
~
r-c,..",----~~--,--------.,.,__~___.,.___,
di\~tion
Follpw the below-mentioned notes whi9n disassembling
tt{a,unit and
exc~lIent
1.'
2;8e
3JTake off nylon bandsorwireholders where
4,.'
"circuits arid:othere;ircui.ts. when
§TE~'iREI\40VA~
1'"
2 Side
3 CDPlayer
4
5
6
7
8
9
10:
11'
12:
13'
'.
14
15
16
17
18
19 CD
Note
Afterremoving theconnectorforthe optical pickup frornthe
connector wrap the.conductive aluminium foibaround.the
front end of connector so as to protect the optical pickup
from electrostatic damage. _
on
Dlsa~sembIY:,
reassembling)t~
perfprm~nce:
take
cassettetape andcompact disc.out.ot the,unit.
sure tp "amove the ppwer supply plug;from the Ylall
.outlet before starting to dlsassenjble the
beremovedwhendisassemblingtheunit.AfterserV!cing
the unit, be sure torearrange the
before disassembling., ",. "..,.:..'
Take sUf(e;ientcare,onstatic electrici;itypf irit",g[aied
CD-K475W
.(;;
. J
to keep it'saf., andensure
-"'.j
leadswh~re
servicing.,'
~"""''''·.,-'';:'::P:::R:::Q:::C:::E::D~!I::R=E+'''''''-'''oO:IG:':Of.R:::lE;,
:TopCabinet""'?')
Panel,
(Left/Right) "
CD Tray
Rear Panel'
TunerPWB
MainPWB
JFront,
:Speaker
H~adph"nesPWB
T~pe~Mechanisin
pi5\veiSu~piyPW8
Turntable t-acrew-:...; (01)
DiscTlay
CDServo
(Note
CD Changer
Mechani'sm
2:
Cov~r
,'"
, I
Panel
Amp,PW1.
;J ' 2. Screw
c",
,,::
2) ,
Mechanism
-F.
Scre~
1,
Sere'!'
L))iitt
1.Tum
openttha
---the
'(Note
2. Hook ,.,..; :.:.•
3.
Hoo~
4.§crew.."C"L
5.
Socket
1. $crew i (D1)x12 .
.. 2.
Screw
1.
Sock~t....~.!
2. Screw .......! ;
1.Flatcable.j (F1)X2
2.Flatwire.:,!
3.
Socket
Screw
4.
5.
Screw
1.
Flatwire ,..
Screw
2.
1.
Screw
Screw
2.
Socket
1, Kn09 1 1
Nut, j ,...: ,.(K2) xr
2;
3:
Scr~w
i;
Sbr~w
1~~
dpe-h
,.
21Scre'w
{sCrew
2. Cover (02)
Screw
1.
Guide
2.
PWB
. 1.
screw
;1.
Soc~et:
1_:1.
screw,
1.Scfew
: :.;' (A1) x4·)
, (Bl).x8 _8,_L.
'on
thepower
~jsc
GO
cover,
1),
.,.
..,
-r-
1. (C4)'x3
.."
1....,
:i
L
~!:
..
..{ )..
.;;....j..,:....
the
cas:sette:chbfCler
..i
....
1,
..
.:'~
.......':........
: ,;..L ..
.........
'..
suPpJ~,
tray,
tc;ike'o~t
and
:c_lo~~.
,';
,,.
:,'..
:.. ($2)
". (ril) x1 9-2
f,.
;
..
.I
L(~1)
;c
).(11I11)
:L.;
..
:,.(Ntjx6.
,
;,
..........
DISASSEMBLY-:
.i;
.;
."
::-'.;::
vriit."
theynee~
th",ywere
-:
(C1)~3\
(C2).
X2.
(C3)
xl..
(D2)x3
(5{)
xt
(E2).X2
(F2)
x3_
(F3)
x4
(F4Yx1
(1=5);
x2,.
(Gl)
x1
(H2)~'
(jf1)~:J.,
(J;2):xfl;
x2'
(K3}x12
(P1)
xE)'
x1
xt
(R1)x2 9-5
(R2)
X2
(S1,)
xl
(S?Yl\4
(T1).-x""4
('il1)
x1
'
x2:
x1
-;
.
.,.i
8~f~
~-2
..
\.
8-2,
9-1
9-1
9-2
:
94
9-5
9-,6
,,9-;7:.
9-7
to
. j
i
.:
'
'i
·f
CD-K475W
~)
;,i~
,.-1
,
--1
SidEi
Panel
..1
(l.;e1l)
ee,
.:' --; i
-~
(Bl) x2]
1il3x8rr1m
Front
Panel
,
Main'
"]
." ;
PWB
:
RearPanel
Figuf,e8-2'
LOCK
Li~VE~
.")
"
~
,
Figure 8-3 \
Note
•
1: " ' .'.
Ho;V
to openthe changer manually.
t.Then,
turn fUllythe lock lever in the arrow direction through
the hole on the loading chassis boftom in this
After that, push forward the CD player base.
(Fig.,
8-3)
state, .
-8-
CD-K475W
TunerPWB
Figure 9-1
(F5) x2
03x10mm
Speaker
AMP.PWB
Front Panel
(F4) x1
03xBmm
(E2) x2
03 x10mm
(P1)X4
04x6mm
Power
Supply
PWB
i(P1)X1
03x10mm
.'
Switch-~q~,
CD
PWB
(N1)x6
03x10mm
Tape
Mechanism
(J2)
x1!(G2)
(J1)x1o3xBmm o3xBmm
Figure 9-2
Front
Panel
/'
Headphones-P-JII'I3~------"-------03x8mm----~he-shiftele"erhas-been-set-iniheilighest1>osition,
Figure 9-3 Figure 9-7
x2
Display
PWB
Cassette
Holder
(Left/Right)
~
(M1
)x1
(S2) x2
Figure 9-6
B~~~~~~-:~a:ne~~~~~I~~-lhe
InstalltheCDchangermechanismonthe CDplayerbaseafter
CD Player Unit
Shift Lever
C~~;~~~~~~~~;;01~~
-9-
CD'-K475W
CP-K475
STEP REMOVAL. :
FrontSpeaker
1
,
CP-K475
Front Panel
(A2)x1 Tweeter
Ie
pROCEDURE
1.
NeL
..,..............;:.....
2, Front Panel ....:.'..,...
-3.
¥i<;:'6W•.:.1.•··:··.·;··········
4,E?c,few..;;:
5.,Screw.;;.......•..,.,.....
Screw Driver
........
Woofer
?;;;,;.. (A4)
-, c",
(1\1)
(1\2)
(,o.3)x
,(A5)
')
Driver should be
pried.
S~eaker
.:
,·FiGURE
xt:
xi
I'·i
2
x4
i<2
Speaker
Box
away
'/
'!lO-1
!~}
from
Box.
.",:
II"
"
Front Panel
n..: ':1
'
: Speaker Box
Woofer
~
Direction of handle
REMOVING'AND REINSTALLlNGTHE MAIN PARTS
CD MECHANISM SECTION
Perform
to remove
Howtoremove the
(See Fig. 10-2)
1. Remove the,screws(A1) x 2 pcs., to remove the TIT upl
Howtoremove,the optlcal
(See Fig. 10-3) ,
1. Remove the screws (B1) x 2 pcs.,to remove the shaft (B2)
2.
3. Remove the optical pickup.
steps
1;,
2;,3 and
the
CD mechanism.
down loading motor.
x 1 pc,
RemoVe
(B4)
,)(:1
the
stop washer (B3):X 1 pc., to remove the gear
pc,'
15-19
of the disassembly method
Trr
up/down IOllding
pickup
motor
fl'
,,'
I:,.
-I.
" ,
Figure 10·1
;TIT
LIP
IDownLoading Moior
. ' Stop WaSher
i .(B1) x2 (B3)x1
~~.6
x~mm
,
Figure
.e!
o
(M)
x2
l1I2.6x5mm
1Q-2 ,"
~
Note:
Afterrerriovin'gthe connector
connector wrap
•
front end·of connector so as toprotect theoptlcal'pickup
from electrostatic damage. . '
, , ' "
the
conductive aillminillm foilaround' the
tcrtheoptlcalplckup
,"
'.
"."
!
fromthe
'<..LA~V
Gear CD Mechanism
,
-10-
(84)x1
Figure
19'3
Optical Pickup
1
~:,
;}1
MECHANISM SECTION
•
Driving
Play:
•
Torque
Play·
Fast
Rewind:
• Tape Speed
Normal
speed
Force
Torque Meter
TW-2412
Check
Torque Meter
TW-2111
torward:
TW-2231
TW-2231
Test
MTT-ll1
Check
Tape
Specified Value
Tape 1:
Over
80 9
Tape2: Over809
Specified Value
Tape1 Tape 2
301080 9
Adjusting Specified Instrument
Point
VRMOl
em
30to 1009 em
50to100
Value Connection
3,000±
30 Hz terminal
TUNER SeCTION
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency
IF
MW
Coverage
SWl
Coverage 2.0±0.1V
SWl
Coverage
SW2
Coverage
SW2
Coverage
MW
Tracking
SWl
Tracking
SWI
Tracking
SW2 11.65MHz 11.65MHz (IL):T304 '1
Tracking
SW2
Tracking
'1.
Input: Antenna, Output: TP302
'2.
Input: Anetnna, Output: TP301
• FM Mute Level
Signal generator: 1kHz, 40 kHz dev., FM modulated
Frequency
98.00MHz 98.00MHz
(25
•
1. A J rsot
450kHz 1,602kHz
-
Band
Band
-
Band
-
Band
-
-
Band
990kHz 990kHz
3.9MHz 3.9 MHz (IL):T303
7.1 MHz 7.1 MHz (IH):TC303 '1
21.45MHz 21.45 MHz (IH):TC302 '1
dB~V)
dius
hat-.
Frequency
Display
531
kHz (IL):T306
3.2MHz (fL):T307
7.3 MHz
9.5MHz (ILl: T308
21.85MHz (IH):TC304
Frequency
Display
-out ut-sl nal-a
n p
g
Settingl
Adjusting
Parts
T351
1.1±0.lV
(IH):TC305
7.7±0.2V
2.1±0.lV
7.7±
T302 '1
Adjusting
Parts Connection
VR351
'1
ears.---
pp
Instrument
Connection
0.2V
Instrument
Jnput:j\n1.9@~
Output:
'1
'2
'2
'2
'2
'2
'I
ADJUSTMENT
I
TUNER
g.em
Speaker
(Load
resistance:
8
ohms)
Speaker
Terminal
I IC303
A3S7 SW2
- ,
f
• FM RF
Signal generator: 1 kHz, 40 kHz dev, FM modulated
Test
Band
Coverage
RF 98 MHz 98 MHz
'1.
'2.
• FM
Signal generator·
Test
IF
'1.
'2.
•
Setting
Keeping the PAUSE button and
on POWER. Then, the Irequency is initially set in the memory
as shown in Table. Call it with the PRESET button to use
adjustment and check of tuner circuit
Preset
No.
1
2 08.00 MHz
3
4
5 98.00 MHz 10 990 kHz 15 5.06 MHz
2l;.;-40-
TAPE
MECHANISM
VRMOI
PWB
©
o
FAS
SWM5
PWB
'"'S""
I
Coverage I
T3S1
m
IAMIFI !FMM<rtel
VR3S1
@]
Level I T308 Te304 reaD3,
"r
P302
IL IH
Ihoverage
FIgure 11-2
Stage
Frequency
-
Input: Antenna, Output: TP301
Input: Anetnna, Output: Speaker Terminal
Detection
Stage
Frequency
10.7MHz
Input: Antenna, Output: TP301
Input: Anetnna, Output: Speaker Terminal
the
Test
Preset
FM
87.50 MHz
90;OO"MHz
06.00
MHz
'
"B'"
Figure
I
W"""'1
8""an"'dl
fL fH
\~~,
I
T307 TC30S TC302 T304 h
~
/~
1
ADJUSTMENT
Frequency
87.5 kHz (IL): LT02 '1
107
MHz
Frequency
98 MHz
Mode
No. No.
531 kHz
6
1,602 kHz
7
'-'603 kHz
9 1,404 kHz 14 7.1 MHz
11-1
FM Band
ICoverageI IFM IFIIFM RFI
~
~ ~
~
!ill
TT01~
TP3011
~
SW2Tr ckin b
I fH fL I
.s:
rt
~
~
~
~OS
~
~~e~:~~
Display
,
FM sweep
Display
MW
T302
~c::r,SOn~NA
~
~
1
~
POINTS
Sellingl
Adjusting
Parts
3.7+0.1 V
LTOl
Sellingl
Adjustln9
Parts
TIOl
(Turnthe
core of trans-
formerTI01
fully counter-
clock wise)
TUNER
Preset
11 3.2 MHz
12 7.3 MHz 17 21.85MHz
=13=
bullon pressed, turn
SWl
""'=3,9,MHz
CD-K475W
---'
I
~
ן-
_~
I b
IH-I
IL I
SW1 I
TrackingI
Preset
~~RMINAL
Instrument
Connection
'2
Instrument
Connection
'1
itlor
SW2
No.
16 9.5 MHz
1-L6S,MHz-
lB
21.45 MHz
19
20 15.1 MHz
-11
-
CD:'K475,W
•
Resistor.
,,/, j
I,"
':>',.\;,,'!:'>
NOTES
,;jj
ON':SCHEMATIC'
-:'\,
i •The
DIAGRAM
indicated
voltage
in
e~6h~X~~ti'6M:fs·th~;;;d~~~J~$G}~d
To differentiatethe uni)§Qfresistors, suchsymbolas K and by DigitalMultimeterbetweensuch asectionaridthe.chasMareused:the symbol K
M means1000kohmandthe
Ohm-type
resistor. Besides,the
type. I
• Capacitor: .
To indicate the unit of capacltor, a,sylribol P is used: this ! 'S'-Inthedecksection;.rtape isbeing
symbol P means mlcro-micro-taradand the unit of the
capacitor without such-a-symbol is microfarad. As to
electrolyticcapacitor,theexpression
voltager is-used. . .. .'.
(CH),
(tH),
(RR),
(UJj:,Terhp'.,'ol.iure compensation : m"intaining
(ML): Mylar type
(P.R.jcjPP!YP(Opy"me
• Schematic diagram andWIYingSide of PW.Board for this .
modelaile
notl~e.i
RE~.N'61
SW~1
),.SW'4\'
SW3 DISC
SW4
SW991
SWD1
SWD2 JOG DIAL
SWD3~'
"SWD,," EQUALIZER/DEMO,
I'·'··.·" .. ·,
',iSWD12<;
! SWD13
SWD14
SWD1S'
SWD16
SWD17
SWD21
SWD BALANCE
.:
$11'/024
,
.:$::.W:;D:::'2~5-,+.:::S:::U~RR~O:::·
>- . SWF02 SPAN
SWD27 SURROUND
SWD28 SURROUND NORMAL
s,~bje,ct
I
19
~.-,
j Ii
qPEN/CLOSE)'
....
MECHAJlp
NL)MBER
I~
"PICKUP'IN',:',"
VOLTAGESELECTOR 230-24dV
\;01.(JMEC0NfR0~,
X'Bi\SS
,-,
TRACK
TUNING
STOP'; ]:" ::, ON-O'FF'':: SWD42 ,
'NORMAL
HIGH'EDIT~"
RECORD/PAUSE.
PLAYIREPEATIPLAV)'".6.N,
'FORWARD'pLAy'
BALANCELEFT ClN'-'l'lFF
, ,
22 SWD5S' CD 'DISC'SKlp'" i
!j@i;lOUND4'SPEAI<ER1""ON-OFFF==--I-';"=''::'
, SWD54
rneanstooq ohmandthesymbol
resist9~\.ithoul
9~~\Vith
.:",
. 2. In the mainsection, a tape is beingplayedlJack'):))uT,
anysymbolis
"Fdsible"is a fuse i
"capaCitancelWithsland
,,',
"iiiswitlj)jo
,1.
In the tuner
()
-<->
:---(
'~-Inthe
11n
'5:
!.
Parts marked with".&."( C . .
,sig~al
indicat.,sAII1;:,.;",
indicatesFMstereo
Ji~dicates
powersection, a tap., isb"ingplayedback, '
the Co section;ifieCO is stopped, :,•
tITe
.'
type";
Changef.o,r.)mp~o
"OESCRI",fI6N
TI
"'Ji'
0p~CUEiFAST
UpSWD41,.'
EDIT..
',1,,' j performanceof the set,
,vein.,h~
__
' --
" ,,'
"""",,,
,j
',I
j .
,;1C
""'"
WIND/ bN--cOFF SWD40
.: ON'-'OFF' , SW043" CP""
_ON";-'OFF
,;';.,
I
wit~o~t
"'1'
'!iPOSI'iION
ON-+ORF
ON----QFF>!
,"
ON-QEE
ON--cOFF
,'j'
"ON-OFF
ON""bFF']
"ONLQtt'"
,-;;,ON-,-,-OFF
'. ,,' ON-QEE" SWD48
,;I
Iii
' ,
prior .i : I I,
i
,;;S\ND39;;)i
.
--cO.'.",
'.F,.,'F.
• SWD50
c
."
J;lIGHT
,,,
:::UN~D=-;
.c:4.:S~p-=E:::AK~E=:R!..'
PHANTOM
=-2
__
'·Oi·
-o
·.F'F'
..' SWD52 CD
~
N'
-l--0:::N~--cO-",=F,=-F~
:~:,
ON-OFF,,:
ON-QEE
,
patlsWithspedfied6nes
",m';)
n'!:;-q::~
RE~.'~91
'SW03h::-
sWb32,' LREVERSEiI10DE
SWD33
I
SWD34
SWD35
SWD36
SWD37
,$WD,38,COCL.E.A,.R
SWD49,'
SWD51
!-,S:.;W;:.:M;::3=-·
SWM4 RECRVS ;
',,:'
")1
I'
CD
REVERSE
CLOCKON"--OFF"
MEMORY
TIMEROJl(---0FF';
.SL,E.FP>
VIDEO/AUX 1
VlbEO/A.UX
TAPE1(~;
;T.~U·'.N··.'F'R,'('B'.'A,ND)
., ON__
ON/STAN
KARAOKE;
'C'D"D"ISC'
.i.
CtJE5ISCNuMBgF'!'2!'
CD
--'-,+'
!..R:::E.::C",FW"":.:P,,,.
-s-.,
~.,
given: -
-,
,<,j-
section,.---;
i
piayedbaqk,,;'T--'
tre
rec<;>rd
state, , i
,il
.•..
'.
·.:])are
safety of the
sSt.
Be-sure:tQ:replacelhe.sEl,
f6nnaihfaiiling
n'}:!,>:;
"'b~SCRIPTION
PAUSE!
I,L
'i),
'N·U·.MBER
'DISC
NUMBER
.;:.:.:.;:.c':::::"
OPENrGLOSE;
'SELECTOR
'\'/lj-:;\1 I I I
! FiOSlTidN'i
I
PLAY
.. ,. "I):.,
""""'"
",'
" .,.
2,
,,'
"""
., r.: , 0f>l'--pFF.,
DjBY ONT-OFF;', I
MAKER',I
1
3
'.,,-
,,:,"':,::
le:)i:1
...•
.'. I ON':"'OFF,', :
'------+-.::;:."""""""--+-'1
~:
--"--"'''-'-'-"'''----'='-f'-''''''--'--'==''-''',
importahlfo~
t~esafety.ftna
,,'
•.
J
,;
iii
I :'.;1 ,-
qN-OFF
ON-OFF
ON--cOFf'
'''OJ\(''--OFF',::
:,
,ONTOFF",
",,:
,,}D~OFF
'6N~FF
ON=OFF
Of>l:,"OFF"
. ,." ..,
[jN-"+0FF i
.
ON:"'OFF ;
O~OFF
.,
r,
ON---'OFF'I"
0N~OFF~i
·0N--cOFF',
ON---'QfF'
i
"
"~,
'-""i
OFf":l;
, .',
T:'
__
)~,i:
I
n'
"
';
i!
,
:-
::.1
E
CS
(S)(G)(D)
(1)(2)
j;.J
'
.,';
; I
.
(3)
" ,
(D)(G)(S),
(3):(2)(1)
.'
~SD2012.]
Figure 12TYPES
I
E
C'
B
'2SB1375
I
OF TRANSISTORAND LED
I LMKD515B
, SLR325MG:
,
II ''.-,
,·SLR505MC
-12-
FRONT
VIEW
'~:'"
KLO!;2Ut"j
SLR325VRiJ'
SLR525MC
I,
-MI;-- '-'+II-;-
,",.
:'
-'.
KV1436Z23F
.11
":;'..'1
" ,
,:
~,_~
;
'
;-,;'.,;':;r!
;,JI
.l
Yi.
TO MAIN SECTION
CD
DIGITAL
OUTPUT
ICRll
CD-K475W
+4.3V-
1-----...0--
'---{
VOLATEG
REGULATOR
+5V--j--
- XVDD §
>--::;:
>>--
+81
I
052
..
o@
RVDC
LVOO
VOO
WDD
~VCC1
_1$
['""-=
e
z'"
:Eg;
~~
"C?
I
®-~
IC1
LA9241M
SERVO AMP.
+81
ICB1
TA7291S
LORDING
MOTOR
DRIVER
-,""
"
n i ~
~
~}---------'
d
~l<;=~============1+J
O~~
~~
filo
"''''
k-,
Itp1-
- - - - -{f-+t-_t__'
~'"~-----+~H-------'
-
51
+11:
SL+. SL-. OAF
1
+7.3V (81)
052
VOLTAGE
REGULATOR
+4.3V
(
D
-----
LASER
DRIVE
.
.
---------~-------
,
i
PICKUP
,
I
,i
I I
I
..
---
-----
, '
------t.--=-===.;.~:::;:.::_;._;,~-==,,:'_-==.;;;
-------------------
UNIT
------
_t I!lf--
......;..-..
_p
_
_='"-_""-;;;"'_-_-_-_-_;;;._._-_-_-_-_-_-_-_-_.~-_
Figure 13 BLOCK DIAGRAM (1/3)
----------
-13-
-------.--
.•
_._._~
M1
SPINDLE
MOTOR
M
-
,
,
,
,
,
,
,
,
,
,
,
__
.__J
SLED
MOTOR,
M
M2
-
U
PICKUPIN
SW,
sosor
"",_
TeRMINAL
'M
"',
~~~,IIDIf--"-----~--,
MW
QUOl
CDMUTE
JAIl JR12
VIDEOIAUXl
VIDEOIAUX2
IFROMCO UNIT I
~---~--'---------t--------"----""""j+-------"'--:'P--"-++--'!Q:.irI!H
QO"
TAPEMOTOR T2
~
SWITCHING
'-'
"'''
, "."
ru
FM
""~,
MUTE;
LEVEL
..
'"
'n
'"
FR_SPI
""
,
rt
'"
"'
-n
'"
"
"
"
sw..a
SW2 +B
CJO:!
OK15
QK16
,"
AM IN
SPE
-ae
IN
VOLTAGE J
REG~~TERI
ICH11(/2)
'-!-.l....L~-----"c-+-,-,--'--,-('''',,}-----'+-+--
I.:
.~
',-
.~:
i-,j
.,
"
CO:
API;.
TUNE~
uxa
, AUXl L
L
L-
"
L
t,
a
FI1~:::::::::"'-_"':'----{<0l1a)----~""9
,w,,,
Reo FWD
~};LMIlsw
SWM6
FAS.
s
...
AECRVS
~8t~~o,o
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