Sony CX-LEM200 User manual

CX-LEM200
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
MICRO HI-FI COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-164-02
2003F16-1
© 2003.06
CX-LEM200 is the Amplifier, CD player, Tape
Deck and Tuner section in XR-EM200.
SPECIFICATIONS
Ver 1.1 2003.06
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type KSM-213EDP
Section Base Unit Name BU-K7BD44B
Optical Pick-up Name KSS-213E/C2N
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CMAL5Z220A
TUNER
FM tuning range 87.5 MHz to 108 MHz
FM usable sensitivity (IHF) 16.8 dBf
FM antenna terminal 75 ohms (unbalanced)
MW tuning range 531 kHz to 1602 kHz
AM tuning range 530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1710 kHz (9 kHz step)
US and CND models:
AEP, UK, E and AUS models:
AM usable sensitivity 350 µV/m
AM antenna Loop antenna
AMPLIFIER
Power output
(AEP and UK models)
Rated: 8 W + 8 W(6 Ω, T.H.D. 1 %,
1 kHz/DIN 45500)
Reference: 10 W + 10 W(6 Ω, T.H.D.
10 %, 1 kHz/DIN 45324)
MUSIC POWER
20 W + 20 W
Input AUX IN: 800 mV
Outputs SPEAKERS: 6 Ωor more
PHONES: 32 Ωor more
CASSETTE DECK
Track format 4 tracks, 2 channels stereo
Frequency response 50 Hz – 10000 Hz
Recording system AC bias
Heads Recording/playback ×1, erase ×1
CD PLAYER
Laser Semiconductor laser (λ= 780 nm)
Emission duration: continuous
D/A converter 1 bit dual
Signal-to-noise ratio 95 dB (1 kHz, 0 dB)
Wow and flutter Unmeasurable
GENERAL
230 V AC, 50/60 Hz (AEP, UK)
Power requirements 120 V AC, 60 Hz (US, CND, MX, TW)
Power consumption 40 W
Power consumption in standby mode
with ECO mode on: 0.3 W
with ECO mode off: 6 W
Dimensions (w/h/d) Approx. 163 ×230.5 ×243 mm
Mass Approx. 3.0 kg
Supplied accessories: FM antenna (1)
AM antenna (1)
Remote commander (1)
Batteries (2)
Specifications and external appearance are subject to change
without notice.
AUDIO POWER SPECIFICATIONS:
(U.S.A. model only)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 6-ohm loads, both channels driven, from 100 - 10,000 Hz;
rated 10 W per channel minimum RMS power, with no more than
10% total harmonic distortion from 250 mW to rated output.
220-240V AC, 50/60Hz (E15)
220V AC, 60Hz (KR)
220-240V AC,50/60Hz (SP, MY)
220-240V AC, 50/60Hz (AUS)
Voltage Selector models: 110-120V or 220-240V AC 50/60Hz
Adjustable with voltage selector
•Abbreviation
AUS : Australian model.
CND : Canadian model.
SP : Singapore model.
MY : Malaysia model.
TW : Taiwan model.
KR : Korean model.
E51 : Chilean and Peruvian models.
MX : Mexican model.
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2
CX-LEM200
1. SERVICING NOTES······················································· 3
2. GENERAL ·········································································· 5
3. DISASSEMBLY
3-1. Rear Cabinet ··································································· 7
3-2. CD Cabinet Section, Front Panel Section ·······················8
3-3. CD Mechanism Deck ······················································ 8
3-4. CONTROL Board ··························································· 9
3-5. Tape Mechanism Deck ···················································· 9
3-6. Cassette Door Assy ······················································· 10
3-7. POWER Board, MAIN Board ······································ 10
3-8. Optical Pick-up (KSS-213E/C2N) ································ 11
4. MECHANICAL ADJUSTMENTS ····························· 12
5. ELECTRICAL ADJUSTMENTS ······························· 12
6. DIAGRAMS······································································ 15
6-1. Block Diagram – CD Section – ··································· 17
6-2. Block Diagram – Main Section – ································ 18
6-3. Printed Wiring Board – CD Section – ························· 19
6-4. Schematic Diagram – CD Section – ···························· 20
6-5. Printed Wiring Boards – Main Section – ····················· 21
6-6. Schematic Diagram – Main Section – ························· 22
6-7. Printed Wiring Board – Control Section – ··················· 23
6-8. Schematic Diagram – Control Section –······················ 24
6-9. Printed Wiring Board – Power Section – ····················· 25
6-10. Schematic Diagram – Power Section –······················ 26
6-11. IC Pin Function Description ······································· 28
7. EXPLODEDVIEWS
7-1. Cabinet Section ····························································· 30
7-2. Front Panel Section ······················································· 31
7-3. CD Cabinet Section ······················································ 32
7-4. KSM-213EDP ······························································· 33
8. ELECTRICAL PARTS LIST······································· 34
TABLE OF CONTENTS
Ver 1.1 2003.06
MODEL IDENTIFICATION
— REAR PANEL —
•Abbreviation
AUS : Australian model.
CND : Canadian model.
SP : Singapore model.
MY : Malaysia model.
TW : Taiwan model.
KR : Korean model.
E51 : Chilean and Peruvian models.
MX : Mexican model.
Parts No.
Parts No.
4-245-014-1s
4-245-014-3s
4-245-014-4s
Model Destination
US, CND, AEP, UK
E51, AUS, MX, TW, KR
SP, MY
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CX-LEM200
SECTION 1
SERVICING NOTES
SAFETY-RELATED COMPONENTWARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µ FAC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Checkthe antennaterminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts forAC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuringthe voltagedrop acrossa resistorby means of aVOM
or battery-operatedAC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passiveVOM that is suitable. Nearly all battery operated digital
multimeters that have a 2VAC range are suitable. (See Fig.A)
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
This label is located on the exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “Scurve check” in “CD section adjustment”and check
that the S curve waveforms is output three times.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C during
repairing.
•Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering or
unsoldering.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
Ver 1.1 2003.06
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CX-LEM200
Service Position of the CD Mechanism Deck
Service Position of theTape Cassette Mechanism Deck
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CX-LEM200
SECTION 2
GENERAL This section is extracted
from instruction manual.
5
En
PARTS AND CONTROLS
Main unit: front
Refer to the pages indicated in parentheses for details.
1
26
5
4
7
3
8
1POWER 6STANDBY/ON (7)
Switches the unit on and off (standby).
2ECO (7)
Sets the ECO mode on or off.
SYNCHRO REC (13)
Starts recording and CD play simultaneously.
REC START/PAUSE (13)
Starts and pauses recording.
DISPLAY (8)
Changes the display in CD playback mode.
3PHONES jack
Plug in optional headphones set with a stereo mini plug
(ø3.5 mm). Speaker output is cancelled.
4OPEN (8)
Opens or closes the disc compartment.
5ECD (7-9)
Starts and pauses CD play.
TUNER/BAND (7, 10)
Selects tuner function and the tuner band.
cTAPE (REC MUTING) (7, 12, 13)
Starts playback.
Also used to enter 4-second blank spaces during
recording.
AUX (7)
Selects the function of external equipment connected to
AUX IN jacks.
6VOLUME (11, 14)
Adjusts the volume.
7f/r-,+t/g(8, 10-12, 14, 15)
CD: skips to a previous or a succeeding track when
pressed, searches a track in fast forward or reverse
playback when held down.
Tape: rewinds or fast forwards the tape.
Tuner: manually tunes up or down within the band.
sSTOP (8, 9, 12, 13)
CD and tape: stops playback.
Tuner: clears a preset station.
TONE (11)
Adjusts the bass or treble level.
8zPUSH EJECT (12, 13)
Opens or closes the cassette holder.
Main unit: rear
Refer to the pages indicated in parentheses for details.
3
4
5
2
1
1AM jack and FM 75 Ωterminal (4)
Plug in the supplied AM and FM antennas.
2AUX IN jacks
Accept analogue sound signals from external equipment.
Connect external equipment using an optional connecting
cable with RCA phono plugs (red plug to R jack, white
plug to L jack). Refer also to the operating instructions
for your equipment.
To switch function to external input, press AUX.
To change a source name in the display of the
AUX function.
Hold down AUX and press POWER while the power is
on.
AUX VIDEO TV
3SUB WOOFER jack
Connect optional powered sub woofer with a built-in
amplifier to the jack.
4SPEAKER terminals (4)
Connect the speaker cords of the supplied speakers.
5AC power cord (4)
6
En
Remote commander
Refer to the pages indicated in parentheses for details.
1
4
5
6
7
9
8
!
@
#
0
2
3
Buttons with the same or similar names on the main unit
basically have the same function.
1POWER (7)
21–10/0, >10 (8-10)
CD: selects a track of the specified number.
Tuner: tunes in the station with the specified preset
number.
The numbered buttons take on these functions when pressed with
SHIFT held down
:
CLOCK (7)
Selects clock mode.
TIMER (14)
Selects timer mode.
TUNER MODE (10)
Switches between stereo or monaural FM reception.
3SHUFFLE/PROGRAM (8, 9)
Selects shuffle or programmed CD playback mode.
REPEAT (8)
Selects repeat CD playback mode.
4PRESETN,M(10)
f/r,t/g(8, 10-12, 14, 15)
ENTER (7, 10, 14, 15)
Determines the mode.
Stores the received station to preset.
5ECD (7-9)
TUNER/BAND (7, 10)
dTAPE (7, 12)
Starts playback but cannot change the playback side.
AUX (7)
6DISPLAY (8)
Changes the display in CD playback mode.
DIMMER (7)
Adjusts the display window brightness.
SLEEP (14)
Selects sleep-timer mode.
7SHIFT
Hold down when pressing a numbered button to change
its function to that printed above the number.
8MUTING (11)
To turn off the sound temporarily.
9CLEAR (9, 10, 15)
CD: Clears a CD program.
Tuner: Clears a preset station.
0TREBLE (11)
Adjusts the treble level.
BASS (11)
Adjusts the bass level.
!s(8, 9, 12, 13)
@FUNCTION (13)
Switches the active function among TAPE, TUNER, AUX
(VIDEO or TV) and CD.
#VOLUME +,-(11)
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CX-LEM200
7
En
ADJUSTMENTS BEFORE OPERATION
ECO CLOCK
POWER
DIMMER
SHIFT
ECD,
TUNER/
BAND,
dTA PE,
AUX
f,g
POWER
6STANDBY/ON
ECD,
TUNER/
BAND,
cTAPE,
AUX
ENTER
f,g
ECO mode
Reduces power consumption in standby mode with the following
operations.
Press ECO.
Each press of the button changes the mode as follows;
ECO ON: Power economizing mode is activated.
When the unit turns off, everything in the display disappears
and only the red indicator above POWER lights to show that
the power is being supplied.
ECO OFF: Power economizing mode is cancelled.
When the unit turns off, the clock display appears.
Initial mode is ECO OFF.
Standby power consumption
ECO ON: 0.3 W
ECO OFF: 6 W
Setting the clock
1 In stop mode, hold down SHIFT and press CLOCK
on the remote.
Go to step 3 when the hour of the clock display flashes.
2 Within 6 seconds, press ENTER.
The hour flashes in the display.
3 Press for gto set the hour, then press
ENTER.
4 Press for gto set the minute.
Each press changes the time in 1-minute steps.
5 Press ENTER.
The time display stops flashing and the clock starts from
00 seconds.
To display the time while the power is on
Hold down SHIFT and press CLOCK on the remote.
The time will be displayed for 6 seconds.
If "- -:- -" appears when the unit is turned off
There has been a power interruption. Reset the clock.
Power
Turning the unit on
Press POWER 6STANDBY/ON (POWER on the remote ).
Alternatively, press cTAPE, TUNER/BAND, AUX or ECD.
Playback will start automatically if a disc or tape is loaded.
Turning the unit off
Press POWER 6STANDBY/ON again.
The unit goes into standby.
Dimmer
The display window brightness can be selected.
Press DIMMER on the remote repeatedly.
Each press of the button changes the following three levels:
"DIMMER 1", "DIMMER 2" and "DIMMER 0".
"DIMMER 0" is the brightest.
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CX-LEM200
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
• This set can be disassembled in the order shown below.
3-1. Rear Cabinet
REAR CABINET
CD MECHANISM DECK
(KSM-213EDP)
OPTICAL PICK-UP
(KSS-213E/C2N)
CONTROL BOARD POWER BOARD , MAIN BOARD
TAPE MECHANISM DECK
(CMAL5Z220A)
CASSETTE DOOR ASSY
SET
CD CABINET SECTION,
FRONT PANEL SECTION
1 two screws
(+BVTP3 × 10)
3 two screws
(+BVTP3 × 10)
4 two screws
(+BVTP3 × 10
)
2 five screws
(+BVTP3
× 10)
5 two screws
(+K3 × 5)
6 two screws
(+K3 × 5)
7 rear cabinet
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CX-LEM200
3-2. CD Cabinet Section, Front Panel Section
3-3. CD Mechanism Deck
8 connector
(CN301)
9 screw
(+BVTP3 × 10)
q; two screws
(+BVTP3 × 10
)
1 connector
(S800)
qd front panel section
5 CD cabinet section
4 claw
3 claw
qa claw
qs claw
2 w ire (flat type)
21p (CN101)
6 w ire (flat type)
21p (CN303)
7 w ire (flat type)
19p (CN302)
1 two screws
(+PSW2.6
× 10)
4 two vibration proof rubbers (GRN)
5 CD mechanism deck
3 two vibration proof rubbers (PNK
)
2 two screws
(+PSW2.6 × 10)
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CX-LEM200
3-4. CONTROL Board
3-5.Tape Mechanism Deck
3 three screws
(+BTP3
× 10)
1 knob volume
4 CONTROL board
2 four screws
(+BVTP3
× 10
)
1 w ire (flat type) 7p (CN101)
2 three screws
(+BVTP3
× 10
)
3 tape mechanism deck
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CX-LEM200
3-6. Cassette Door Assy
3-7. POWER Board, MAIN Board
1 Open the cassette door assy.
3 cassette door assy
cla
w
2
1 connector
(AC IN)
2 connector
(CN901)
5 two screws
(+BVTP3
× 10)
3 four screws
(+BVTP4
× 12)
6 MAIN board
4 POWER boar
d
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11
CX-LEM200
3-8. Optical Pick-up (KSS-213E/C2N)
2 gear (A)
1 claw
5 sled shaft
6 KSS-213E/C2N
4
3
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12
CX-LEM200 SECTION 4
MECHANICAL ADJUSTMENTS
•TAPE MECHANISM DECK SECTION
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
2.94 mN • m to 7.84 mN • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.14 mN • m to 0.59 mN • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.86 mN • m to 17.64 mN • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
more than 0.98 N • m
100 g or more
(3.53 oz or more)
Mode Torque meter
CQ-102C
CQ-102C
CQ-201B
CQ-403A
Meter reading
FWD
FWD
back tension
FF/REW
FWD tension
SECTION 5
ELECTRICAL ADJUSTMENTS
Precaution
1. Demagnetize the record/playback head with a head demagne-
tizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuit ad-
justment should be completed before performing recording
circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless other-
wise specified.
•Test Tape
Tape Signal Used for
P-4-A100 10 kHz, – 10 dB Azimuth Adjustment
WS-48B 3 kHz, 0 dB Tape Speed Check
0 dB = 0.775 V
DECK SECTION
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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13
CX-LEM200
Tape Speed Check
Mode: Playback
1. Insert the WS-48B into the deck.
2. Press the Nbutton on the deck.
3. Confirm that the frequency counter reads 3,000 ± 90 Hz.
Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS)
(WS-48B)
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
set
test tape
P-4-A100
(10 kHz, – 10 dB)
R-CH
oscilloscope
L-CH
R-CH
VH
waveform of oscilloscope
in phase 45 ° 90 ° 135 ° 180 °
good wrong
MAIN board
SPEAKER terminal (J302)
L-CH
+
–
set
test tape
WS-48B
(3 kHz, 0 dB)
MAIN board
SPEAKER terminal (J302)
L-CH, R-CH
frequency counter
Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: Playback
Adjustment Location:Record/Playback/Erase Head
set
MAIN board
SPEAKER terminal (J302
)
L-CH, R-CH
+
–
level meter
test tape
P-4-A100
(10 kHz, – 10 dB)
Note: Refer to “3-6. Cassette Door Assy” (see page 10)
adjustment screw
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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14
CX-LEM200
RFDC signal waveform
Checking Location: CD board (Conductor side)
RFAC Level Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP (RFAC) andTP (VC)
on the CD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RFAC
signal level is correct or not.
Note: A clear RFAC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RFAC signal waveform
Checking Location: CD board (Conductor side)
CD SECTION
Note:
1. CD Block is basically designed to operate without adjustment. There-
fore, check each item in order given.
2. UseYEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-curve Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP (FE) and TP (DVC)
on the CD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in and turned power switch on again
and actuate the focus search. (actuate the focus search when
disc table is moving in and out)
4. Check the oscilloscope waveform (S-curve) is symmetrical
betweenA and B.And confirm peak to peak level within 2 ± 1
Vp-p.
S-curve waveform
Note: •Try to measure several times to make sure than the ratio of A : B
or B : A is more than 10 : 7.
•Take sweep time as long as possible and light up the
brightness to obtain best waveform.
Checking Location: CD board (Conductor side)
RFDC Level Check
Connection:
Procedure:
1. Connectan oscilloscope to test point TP (RFDC) andTP(DVC)
on the CD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RFDC
signal level is correct or not.
Note: A clear RFDC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
+
–
CD board
TP (FE)
TP (DVC)
oscilloscope
A
B
symmetry
within 2
± 1 Vp-p
+
–
CD board
TP (RFDC)
TP (DVC)
oscilloscope
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 0.7
± 0.2 Vp-p
+
–
CD board
TP (RFAC)
TP (VC)
oscilloscope
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 0.9
± 0.4 Vp-p
Checking Location:
– CD BOARD (Conductor Side) –
TP (VC)
TP (FE)
TP (TE) TP
(RFDC)
TP
(DVC)
TP
(RFAC)
IC103
IC101
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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15
CX-LEM200
SECTION 6
DIAGRAMS
• Circuit Boards Location
THIS NOTE IS COMMON FOR PRINTEDWIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this,the necessary note is printed
in each block.)
For schematic diagrams.
Note:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•2: nonflammable resistor.
•1: fusible resistor.
•C: panel designation.
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•f: internal component.
•: Pattern from the side which enables seeing.
•A: B+ Line.
•B: B– Line.
•Voltagesare takenwithaVOM(Input impedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: TUNER
J: CD
d: AUX
E: PB (TAPE)
a: REC (TAPE)
CD board
MAIN board
POWER board
CONTROL board
REGULATOR board
Ver 1.1 2003.06
•Abbreviation
AUS : Australian model.
CND : Canadian model.
SP : Singapore model.
MY : Malaysia model.
TW : Taiwan model.
KR : Korean model.
E51 : Chilean and Peruvian models.
MX : Mexican model.
Note:
The components identi-
fied by mark 0or dotted
linewith mark0are criti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposants identifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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16
CX-LEM200
•Waveforms
– CD Board –
1.1Vp-p
1IC103 qg (RFAC)
(CD Play Mode)
2IC101 el (FE)
(CD Play Mode)
200mV/DIV, 1 µ s /DIV
50mV/DIV,
200 µ s /DIV
100mV/DIV, 200 µ s /DIV
1V/DIV, 20ns /DIV
200mVp-p
250mVp-p
3IC101 ra (TE)
(CD Play Mode)
4IC101 yj (XTAO)
5.4Vp-p
59ns
6 IC801 qh (8.6MHz-EXTAL)
1V/DIV, 40ns /DIV
1V/DIV,
10 µ s /DIV
5 IC801 qd (32.768kHz)
5.4Vp-p
30.5
µ s
4.0Vp-p
116ns
7 Q307 collector (Rec mode)
5V/DIV, 4 µ s /DIV
14.1Vp-p
10.7
µ s
– CONTROL Board – – MAIN Board –
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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1717
CX-LEM200
6-1. Block Diagram – CD Section –
: CD
• Signal Path
SQSO SQCK
A/D
CONVERTER
CH1OUTF
CH1OUTR
6
7
8
9
16
18
11
10
12
2
1
51
49
48
43
24
41
40 39
64 15
28
29
30
31
32
33
24
25
23
5
6
2
3
17
18
15
16
E
B
C
D
A
CD +5V
F
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RFAC
FE
IC103
RF AMP,
FOCUS/TRACKING ERROR AMP
TE
E
FF I-V AMP
E I-V AMP
Q101
AUTOMATIC
POWER
CONTROL
APC LD
AMP
LD
LD
PD
LASER DIODE
RFAC
ASYO
ASYI
ASYMMETRY
CORRECTION
DIGITAL
PLL
IC101 (1/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
DATA
XLAT
CLOK
14 56
MDP
26 7 8
XLON
3
XRST
DIGITAL
CLV
D/A
INTERFACE
SE
TE
FE
RFDC
FOCUS/TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4SIN
CH3RIN
CH3OUTF
CH3OUTR
CH2FIN
CH2RIN
CH1FIN
CH1RIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
S101
(LIMIT)
EMPH
WFCK GFS
MIRR/DFCT/
FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
18
63
62
61
19
SENS
20
86
97
87
94 3
SCOR
C-SQSO
C-SQCK
C-XLT
C-CLK
C-DATA
C-SENS
S-SCOR
1 2
96 88
SCLK
COUT
921
SSTP
27
FOK
22
23
MIRR
DFCT
TO SERVO INTERFACE
CH4OUTF
CH4OUTR
(SPINDLE) MOTOR
DRIVE
MOTOR
DRIVE
CH2OUTF
CH2OUTR
M
M
(SLED)
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IC101 (2/2)
DIGITAL SERVO
PROCESSOR
OPTICAL PICK-UP
BLOCK
KSM-213EDP
SW
PD
I-V AMP
12
11
13
14
54 56 53 55
FILTER
FILO
PCO
CLTV
FILI
EFM
DEMODULATOR
SERIAL
IN
INTERFACE
DIGITAL
FILTER,
NOISE SHAPER
PWM
&
INTEGRATOR
BUFFER
CLOCK
GENERATOR
TIMING
LOGIC
DIGITAL
OUT
INTERNAL BUS
16K
RAM
ERROR
CORRECTOR
SUBCODE
PROCESSOR
60
85 C-XRST
XTAI
X101
16.9344MHz
AIN1
AIN2
AOUT1
AOUT2
TO MIRR/DFCT/
FOK DETECTOR
PCMD
BCK
LRCK
C2PO
DOUT
66
XTAO 67
70
77
LOUT1
LOUT2 R-CH
72
75
71
76
A
MAIN SECTION
EQ
IN 15
3
4EQ
AC
SUM
17
FEI
RF DC
AMP 28
RFDCO
29
RFDCI
COIL
DRIVE
COIL
DRIVE
2
1
C-PWM2
C-PWM1
PWM3
PWM2
PWM3
PWM2
95 C-LDOM
IC801 (1/2)
CD
L-CH
RFAC
VCA
+7V
+7V
+5V
SYSTEM CONTROLLER
+3.3V
REG
Q102
CD +5V
REG
Q317
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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1818
CX-LEM200
6-2. Block Diagram – Main Section –
• R-CH is omitted due to same as L-CH.
: TUNER
: CD
• Signal Path
: AUX
: PB (TAPE)
: REC (TAPE)
BIAS
OSC
Q307
+10V
ERASE
HEAD
REC/PB
HEAD
DECK
TU COUNT
99
TU CLK
100
TU CE
84
SYSTEM CONTROL
IC801 (2/2)
TU DATA
98
L
R
AUX IN
J303(1/2)
SUB
WOOFER
J303(2/2)
J301
HEADPHONES
R-CH
L
R
FUCTION
KEY
REMOTE
CONTROL
RECEIVER
IC802
S801-806
D811
ECO
TUNER PACK
L-CH
R-CH R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
TU TUNED
93
REC/PB
SWITCH
Q326-332
T301
BIAS OSC
Q308
MECHANISM BLOCK
PLAY
T SOL
DRIVE
Q321,322
MOTOR
DRIVE
Q323,325
TA REC/PB
77
TA BIAS
74
TA SW
24
32.768kHz
12
32.768kHz
13
X801
32.768kHz
8.64MHz
15
8.64MHz-EXTAL
16
X802
8.64MHz
9
AMP MUTE
29RMC
FUCTION
KEY
S807-813
19KEY2
VOL
ENCODER
RV801
22
VOL.ENC
75ECO.LED
31
RESET
SWITCH
Q815
11
RST RESET
IC803
13
20
I POWER DOWN
D907-910
RELAY
DRIVE
AC
IN
CD POWER
CONTROL
Q320
Q311 RY801
18KEY1
82
CD
+5V
PB/REC EQ AMP
IC302
AUX L
19 18
OUT L
TU L
23
TAPE L
2
CD L
21
16
OUT R R-CH
13
CONT
28
REC OUT
TU MUTE
80
RDS-SIG
23
RDS-DATA
91
TU STEREO
92
STEREO
MUTE
FM SOUT
R DATA
R INT RDS-CLK
27
R-CHR-CH
L-CH
R REC
T END
M
M1
DECK
MOTOR
R-CH
F-DATA
10
TA PLAY.SW
79
TA MOTOR
6
TA END
5
TA SOL
4
CD OPEN/CLOSE
76 C-DOOR
POWER
AMP
R-CH
J302
SPEAKER
45
47
50
.
52
66
.
SEG1
SEG20
37
44
GRID1
GRID8
FLUORESCENT
DISPLAY
FL801
F1 F2
POWER
CONTROL
D810
µCON +B
+5.6V (SUB)
D813
26
I POWER MONITOR
Q315
VOLTAGE
SELECTOR
S901
+7V
REG
Q319
+7V
IC302
+5V
+5V
Q309
12
6 5
2
IC303
78
AMP-STNBY
11
FL -26V
D809
µCON +B
+10V
REG
IC305
13
T902
POWER
D916-919
D911-914
F1(AC 3.5V)
F2(AC 3.5V)
D922-925
+5V
REG
Q305
(MAIN)
+5V +5V
REG
Q339
TU +5V +5V
REG
Q310
+10V
D319-321
POWER AMP
VCC
AC
DET
Q333
IC302
-5V
-5V
REG
Q306
FL -26V
REG
Q334-337
FL -26V
POWER
MONITER
Q338
+5.6V
REG
Q312-314
+10V
D317
8
POWER ON
+5.6V( SUB)
L OUT2
L OUT1
A
CD SECTION
S800
(OPEN)
(MAIN)
TRANSFORMER
T901
POWER
(SUB)
TRANSFORMER
E51,SP,MY
Ver 1.1 2003.06
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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http://www.xiaoyu163.com

1919
CX-LEM200
6-3. Printed Wiring Board – CD Section –
IC102
IC101
IC103
TP (VC)
TP (RFAC)
TP (DVC)
CN803
23
1-680-849-
CONTROL
12
A
B
C
D
E
F
G
345678
Ref. No. Location
D101 F-5
IC101 E-4
IC102 C-5
IC103 D-2
Q101 C-2
Q102 G-5
• Semiconductor
Location
• See page 15 for Circuit Boards Location.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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2020
CX-LEM200
6-4. Schematic Diagram – CD Section –
KSM-213EDP
CN803
0uH
0uH
CONTROL
24
• See page 16 for Waveforms. • See page 26 for IC Block Diagrams.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com