Sony CDX-S2270EE User manual

SERVICE MANUAL
Sony Corporation
eVehicle Division
Published by Sony Techno Create Corporation
East European Model
FM/AM COMPACT DISC PLAYER
9-879-912-01
2006A04-1
© 2006.01
Ver. 1.0 2006.01
SPECIFICATIONS
CDX-S2270EE
CD player section
Signal-to-noise ratio 120 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Tuner section
FM
Tuning range FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz step)
FM3: 65 – 74 MHz (at 30 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 67 dB (stereo),
69 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo),
0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range 531 – 1,602 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 50 W ×4 (at 4 ohms)
General
Outputs Audio outputs terminal (sub/rear switchable)
Power aerial relay control terminal
Power amplifier control terminal
Input Aerial input terminal
Tone controls Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 ×50 ×178 mm (w/h/d)
Mounting dimensions Approx. 182 ×53 ×161 mm (w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and connections (1 set)
Front panel case (1)
Design and specifications are subject to change without
notice.
• The tuner and CD sections have no adjustments. Model Name Using Similar Mechanism CDX-R3350EE
CD Drive Mechanism Type MG-611TA-186//Q
Optical Pick-up Name KSS1000E
•CDX-S2270EE is FM/AM compact disc player
in CXS-S2213GF.

2
CDX-S2270EE
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH 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.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be damaged
by heat.
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:
CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)
CD-RW test disc TCD-W082L (Part No. J-2502-063-2)
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
optical pick-up
semi-fixed resistor
SERVICE NOTES
This label is located on the bottom of the chassis.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

3
CDX-S2270EE
•UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SERVO BOAR
D
CN2
MAIN BOARD
CNP301 J-2502-076-1
•CD Playback:
You can play CD-DA (also containing CD TEXT*1), CD-R/CD-
RW (MP3 files also containing Multi Session and ATRAC CD
(ATRAC3 and ATRAC3plus format).
Type of discs Label on the disc
CD-DA
MP3
ATRAC CD
*1 A CD TEXT disc is a CD-DA that includes information such as
disc, artist and track name.
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
•Connect the MAIN board (CNP301) and the SERVO board (CN2)
with the extension cable (Part No. J-2502-076-1).

4
CDX-S2270EE
TABLE OF CONTENTS
1. GENERAL
Location of Controls ........................................................ 5
Connections ..................................................................... 5
2. DISASSEMBLY
2-1. Sub Panel (Hex) Assy ...................................................... 8
2-2. CD Mechanism Block ..................................................... 8
2-3. Main Board ...................................................................... 9
2-4. Chassis (T) Sub Assy ....................................................... 9
2-5. Roller Arm Assy .............................................................. 10
2-6. Chassis (OP) Assy ........................................................... 10
2-7. Optical Pick-up ................................................................ 11
2-8. SL Motor Assy (M902) ................................................... 11
2-9. LE Motor Assy (M903) ................................................... 12
2-10. Servo Board ..................................................................... 12
3. DIAGRAMS
3-1. Block Diagram –CD Section– ......................................... 13
3-2. Block Diagram –Main Section– ...................................... 14
3-3. Block Diagram –Key Section– ........................................ 15
3-4. Circuit Boards Location .................................................. 15
3-5. Printed Wiring Boards –CD Mechanism Section– .......... 17
3-6. Schematic Diagram –CD Mechanism Section (1/2)– ..... 18
3-7. Schematic Diagram –CD Mechanism Section (2/2)– ..... 19
3-8. Schematic Diagram –Main Section (1/3)– ...................... 20
3-9. Schematic Diagram –Main Section (2/3)– ...................... 21
3-10. Schematic Diagram –Main Section (3/3)– ...................... 22
3-11. Printed Wiring Board –Main Section– ............................ 23
3-12. Printed Wiring Board –Key Section– .............................. 24
3-13. Schematic Diagram –Key Section– ................................. 25
4. EXPLODED VIEWS
4-1. Main Section .................................................................... 33
4-2. Front Panel Section ......................................................... 34
4-3. CD Mechanism Section (1) ............................................. 35
4-4. CD Mechanism Section (2) ............................................. 36
4-5. CD Mechanism Section (3) ............................................. 37
4-6. CD Mechanism Section (4) ............................................. 38
5. ELECTRICAL PARTS LIST .................................. 39

5
CDX-S2270EE
SECTION 1
GENERAL
• LOCATION OF CONTROLS
• CONNECTIONS
5
Location of controls and basic operations
Main unit
Refer to the pages listed for details.
aVolu me +/– button
To adjust volume.
bSEL (select) button 4, 7
To select items.
cSOURCE button
To power on/change the source (Radio/CD).
dMODE button 6
To select the radio band (FM/AM).
eDisc slot
Insert the disc (label side up), playback
starts.
fDisplay window
gATT (attenuate) button
To attenuate the sound. To cancel, press
again.
hEQ3 (equalizer) button 7
To select an equalizer type (XPLOD,
VOCAL, CLUB, JAZZ, NEW AGE, ROCK,
CUSTOM or OFF).
iZ(eject) button
To eject the disc.
jSEEK +/– button
Radio:
To tune in stations automatically (press); find
a station manually (press and hold).
CD:
To skip tracks (press); skip tracks
continuously (press, then press again within
about 1 second and hold); fast-forward/
reverse a track (press and hold).
k(front panel release) button 4
lDSPL (display)/DIM (dimmer) button
4
To change display items (press); change the
display brightness (press and hold).
mSENS button
To improve weak reception: LOCAL/
MONO.
nRESET button (located behind the front
panel) 4
oNumber buttons
Radio:
To receive stored stations (press); store
stations (press and hold).
CD:
(1)/(2):GROUP* –/+
To skip groups (press); skip groups
continuously (press and hold).
(3):REP 6
(4):SHUF 6
pBTM button 6
To start the BTM function (press and hold).
qOFF button
To power off/stop the source.
rReceptor for the card remote
commander 8
* When an MP3/ATRAC CD is played.
SENS BTM OFFDSPL 1 2 3 4 5 6
SEL
DIM SHUFREP
EQ3ATT SOURCE MODE
SEEK
CDX-S2270EE
CDX-S2250EE
–+ GROUP
q
a
1234 5 6 7890
q
s
q
d
q
g
q
h
q
j
q
k
q
f
A UDIO OUT REAR
A
B

6
CDX-S2270EE

7
CDX-S2270EE
SECTION 2
DISASSEMBLY
Note: This set can be disassemble according to the following sequence.
2-1. SUB PANEL (HEX) ASSY
(Page 8)
2-2. CD MECHANISM BLOCK
(Page 8)
SET
2-3. MAIN BOARD
(Page 9)
2-4. CHASSIS (T) SUB ASSY
(Page 9)
2-5. ROLLER ARM ASSY
(Page 10)
2-6. CHASSIS (OP) ASSY
(Page 10)
2-8. SL MOTOR ASSY (M902)
(Page 11)
2-10. SERVO BOARD
(Page 12)
2-7. OPTICAL PICK-UP
(Page 11)
2-9. LE MOTOR ASSY (M903)
(Page 12)

8
CDX-S2270EE
2-2. CD MECHANISM BLOCK
Note: Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL (HEX) ASSY
2 two claw
s
3 two claws
4 sub panel (HEX) assy
1 two screws
(+PTT 2.6
× 6)
6 bracket (CD)
7 CD mechanism block
4 CNP301
3
1 screw
(+PTT 2.6 × 6
)
2 screw
(+PTT 2.6 × 6)
5 two screws
(+PTT 2.6 × 4)

9
CDX-S2270EE
2-4. CHASSIS (T) SUB ASSY
2-3. MAIN BOARD
3 MAIN board
2 two screws
(+PTT 2.6
× 8)
1 three screws
(+BTT 2.6
× 5)
insulating sheet
5 SENSOR board
6 chassis (T) sub assy
4 claw
3 claw
2 two screws
(+P 1.7
× 2.2)
1 two screws
(+P 1.7
× 2.2)

10
CDX-S2270EE
2-6. CHASSIS (OP) ASSY
2-5. ROLLER ARM ASSY
3 washer
4 gear (RA1)
5 roller arm assy
1 spring (RAL)
2 spring (RAR)
4 washer
qa chassis (OP) assy
5 gear (LE1)
1 CN1
lever (D)
slider (R)
6
7
8
2 Remove the six solders.
3 tension spring (KF60)
0 coil spring (damper)
9 two coil springs (damper)

11
CDX-S2270EE
2-8. SL MOTOR ASSY (M902)
2-7. OPTICAL PICK-UP
1 tension coil spring (CHKG)
2 chucking arm sub assy
4 rack (SL)
5 claw
6 main shaft
7 optical pick-up
3 screw
(+B 1.4 × 5)
2 SL motor assy (M902)
1 screw
(+P 1.4 × 1.8
)

12
CDX-S2270EE
2-10. SERVO BOARD
2-9. LE MOTOR ASSY (M903)
2 washer
4
qd
3 gear (LE1)
7 leaf spring (LE)
5
lever (D)
bracket (LEM-N)
slider (R)
qf two toothed lock screws
(+M 1.4
)
9 bearing (LEB-N)
0 woam (LEB) assy
qg LE motor assy
(M903)
1 Remove the two solders.
6 screw
(+P 1.7
× 2.2)
8 screw
(+M 1.7
× 2.5)
qa screw
(+M 1.7
× 2.5)
qs screw
(+M 1.7
× 2.5)
3 CN1
5 claw
6 SERVO board
1 Remove the eight solders.
2 Remove the three solders.
4 screw

13 13
CDX-S2270EE
CDX-S2270EE
79
RFO
DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
87 RFEQO
3
RFRP
6
TEI
85 RFI
86 RFRPI
1RFZI
7TEZI
9F0O
PD1
PD2
E
F
I-V AMP
PD LD
DETECTOR
77
AGCI
78
RFDCI
94
96
95
97
99
98
TNI
FPI1
FNI1
FPI2
FNI2
TPI
91 LDO 92
MDI
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Signal Path
: CD PLAY
LASER DIODE
M
M
M
18
17
VO3–
VO3+
14
13
VO1+
VO1–
12
11 VO2–
VO2+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN4– 26
OPOUT4 25
10 TRO
OPIN3– 23
46 IO0(/HSO)
OPOUT3 22
12 FMO
OPOUT1 4
13 DMO
OPIN2 7
47 IO1(/UHSO)
MUTE 21
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
56
MUTE
53
REQ
43
STBY
18
ZDET
42
/RST
41
/CCE
40
BUCK
39
BUS3
CD-L MAIN
SECTION
A
30
LO
27
RO R-CH
27 DEC_SSTBY
15 CD_ZDET
14 CD_XRST
13 CD_XCCE
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD_BUCK
11 CD_BUS3
38
BUS2 10 CD_BUS2
37
BUS1 8CD_BUS1
36
BUS0 7CD_BUS0
14
SBSY 52 CD_SBSY
81 X1
80 X0
MEC_LOAD
43
MEC_EJECT
44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROL
IC501 (1/3)
37 DEC_XMUTE
30 DEC_INT
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
56
UNISI
25
RXD
57
UNISO
58
UNICKI
50
BUS_ON
51
BU_IN
75
RSTX
61
XFLASH&EJECT_OK
67
MECON_CHK
1
NC 1.5V_ON
64
CDON
66
ZMUTE
60
A_ATT
26
TXD
PD1
E
F
LD+
MON OUT
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q1
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.934MHz
X1
12MHz
XI
XO
DISPLAY
SECTION
C
MAIN
SECTION
B
EJECT_OK_SW
UNI SI
75
RST SYS RST
UNI SO
ATT
UNI CLK
BUS ON
B/U CHECK
BU+3.3V
89
CD_ON
VOUT
98
62
OPEN_REQ OPEN REQ
54
CD_MUTE-R
MECHA+6V
93
68
CDON_CHK
15 VDD
3
CE
SERVO+3.3V
+1.5V
+1.5V
BU+3.3V
3-1. BLOCK DIAGRAM — CD SECTION —
(Page 14)
(Page 14)
SECTION 3
DIAGRAMS
(Page 15)

1414
CDX-S2270EE
CDX-S2270EE
1ANT 7TU-LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
POWER AMP,
POWER SUPPLY
IC750
SYSTEM CONTROL
IC501 (2/3)
CN601
6TU-RCH
R-CH (FRONT)
R-CH (REAR)
BATT
9CD LCH
8CD RCH
R-CH
4
3
10
VCC
11
TU-VDD(TU5V)
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU-MUTE
16
E2P-SCL
17
E2P-SDA
39 VSM
AUDIO+8.3V
15
E2P-VDD BU+3.3V
12 TUATT
25 EEP CKO
24 EEP SIO
L-CH
R-CH
CD-L
R-CH 17
18
OUT SUB-L
OUT SUB-R R-CH
L
R
5
3
OUT-FL+
OUT-FL-
9
7
OUT-RL+
OUT-RL-
29
27
AMP-REM
R-CH
ANT-REM
BATT
30
37
AUDIO8.3V
B.UP+B
31
33
SERVO3.3V
MECHA6V
34
PANEL+B
BATT
25
24
OUT-FR
OUT-RR
29
MUTE
2SDA
AUDIO+8.3V
BU+3.3V
SERVO+3.3V
MECHA+6V
PANEL+B
4SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
35 VP
15
7
10
12
11
16
1
9
2
4
3
5
6
30
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
33
I2C CKO
34
I2C SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMPSTB
8
DIAG
54
BU IN
73
UNI SI
58
UNI SO
59
UNI SCK
60
BUS ON
87
UNI SI
UNI SO
UNI CLK
BUS ON
B/U CHECK
ATT
TEST IN
12 IN-FL FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
AMPREM
ANTREM
ACC
TEST
23
OUT-FL
11 IN-RL
22
OUT-RL
MUTE
Q441
MUTE
Q481
AUDIO OUT
J330
MUTE DRIVE
Q478,479
BATT
72
74
ACC_IN
TEL ATT
BATTERY CHECK
Q580-582
TUNER +5V REG.
Q1
ACCESSORY CHECK
Q631
MUTE
Q461
13 TEL-MUTE
D479
D511
D580
D581
D512
F901
CD
SECTION
A
CD
SECTION
B
ATTENUATION
Q651
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: MW/LW
3-2. BLOCK DIAGRAM — MAIN SECTION —
(Page 13)
(Page 13)

15 15
CDX-S2270EE
CDX-S2270EE
3-3. BLOCK DIAGRAM — KEY SECTION — 3-4. CIRCUIT BOARDS LOCATION
MAIN board
KEY board
SENSOR board
SERVO board
tuner uni
t
(TU1)
(Page 13)
KEY ACKNOWLEDGE
SWITCH
Q664
X502
32.678kHz
79
80
82
83
41
28
29
27
40
52
76
77
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVE
IC901
KEYIN0
CLK
CE
LCD_SO
LCD_CKO
LCD_CE
DIMMER
KEYIN1
KEYACK
XKEYON
7NOSE_DET
88 SYS RST
RESET
2 1
XIN
XOUT
OSCOUT
OSCIN
X501
18.432MHz
S702
RESET
63
64
62
1
COM4
COM1
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
D503
D510
4
|
50
•
55
51
|
54
|
S1
S48
|
CL
DI
CE
64
SIRCS IR
LED901-905,
LED907-909,
LED913-921,
LED941,942,
LED951,952,
LSW904,906,
LSW910,911
Q921
LED
CONTROL
LED932
PANEL+B
IR RECEIVER
IC971
2OUT
BU+3.3V
SYS RST
()
KEY MATRIX
RESET
IC602
LSW904,906,910,911,
S901-903,905,
907-909,
S913-921
VDD VOUT
LCD BACK
LIGHT
CD
SECTION C

1616
CDX-S2270EE
CDX-S2270EE
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
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. (p: pF)
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.
•C: panel designation.
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•a: Through hole.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•A: B+ Line.
•B: B– Line.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
•CD mechanism section (1/2), (2/2)
no mark : CD PLAY
•Main (1/3), (2/3), (3/3) and Key sections
no mark : FM
():AM
<>:CD PLAY
∗: Impossible to measure
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
•Circled numbers refer to waveforms.
•Signal path.
J: CD PLAY
F: FM
f: AM
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
Q
C
These are omitted
EB
E
These are omitted
CB
C
These are omitted
BE
• Waveforms
1 IC2 4(FEI)
Approx.
1Vp-p
0 V
0.6 Vp-p
16.9344 MHz
Approx. 100 mVp-p
50 mV/DIV, 5 msec/DIV 0.5 V/DIV, 0.5
µ sec/DIV
2 IC2 6(TEI)
200 mV/DIV, 5 msec/DIV
6 IC2 oh (FPI2),
0.5 V/DIV, 0.5 µ sec/DIV
Approx. 400 mVp-p
3 IC2 wd (XI)
0.2 V/DIV, 0.2 µ sec/DIV
7 IC3 ia (X1)
0.5 V/DIV, 0.2 µ sec/DIV
1.1 Vp-p
12 MHz
4 IC2 uj (RFI)
0.5 V/DIV, 0.5 µ sec/DIV
5 IC2 of (FNI2), og (FNI1)
1.5 Vp-p
oj (FPI1)
1.5 Vp-p
0 V
— SERVO Board —
(CD PLAY) — MAIN Board —
0.8 Vp-p
32.768 kHz
1 IC501 i; (XOUT)
0.2 V/DIV, 20 µ sec/DIV
4 Vp-p
18.432 MHz
2 IC501 is (OSCOUT)
0.5 V/DIV, 0.1 µ sec/DIV
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.

17 17
CDX-S2270EE
CDX-S2270EE
1
A
B
C
D
E
F
G
H
234567891011 12 13 14
SW3
SW2
MAIN BOARD CNP301
TP24
TP40
TP17
TP14
TP18
TP37
TP38
TP39
TP30
FMA4
FMA6
FMA3
TP48
TP49
TP51
TP53
FMA5
C37
C9
C38
C39
C40
C41
C43
C48
C67
C72
R132
R6
R7
R48
R50
R16
R17
R40
R41
R8
R26
R84
R86
R131
Q1
IC6
SW1
(DOWN)
C106
C65
C64
C19
C20
C61
Q3
FB4
C29
C22
R65
C32
C51
C35
C45
C62
R11
R9
C57
R10
IC3
R12
C6
R112
R58
R42
R113
R43
R47
R54
R56
R57
R66
R68
R69
R70
R73 R100
R101
R13
R21
R71
Q2
C7
C101
C102
C80
C103
IC1
TP4
TP3
TP5
TP33
TP34
TP35
TP36
TP41
TP42
TP47
TP46
TP25
TP26
TP27
TP21
TP22
TP68
TP93
TP15
TP64
FMB3
FMB4
TP11
TP86
TP87
TP10
TP1
TP6
TP7
TP8
TP9
TP12
TP13
TP16
TP20
TP32
TP31
TP66
TP67
TP74
TP75
TP76
TP77
TP78
TP79
TP80
TP81
TP82
TP83
TP84
TP85
TP90
TP89
TP88
TP91
TP92
TP95
TP97
TP98
TP99
TP2
TP63
TP44
TP43
TP65
TP62
TP101
TP23
TP29
CN1
R4
R24
R5
CN2
R61
C5
R49
R51
R45
R46
R2
R3
X1
X1
IC2
C10
C4
R119
C18
C47
C34
R118
C17
C23
C42
C16
C60
R125
C36
R62
R117
C21
R116
X2
C24
C31
C28
R126
C52
R127
C49
R128
C53
R63
R64
C13
R28
R1
C27
R53
R55
R67
R60
R74
R77
R78
R80
R81
R82
R83
R90
R91
C33
R19
R23
R44
R52
R72
R59
C59
C105
C58
1-866-807-
11
11 1-866-807-
11
11
A
1-689-230-
3-5. PRINTED WIRING BOARDS — CD MECHANISM SECTION — •Refer to page 15 for Circuit Boards Location. : Uses unleaded solder.
(Page 23)
IC1 G-2
IC2 B-11
IC3 D-2
IC6 D-1
Q1 B-4
Q2 C-1
Q3 C-1
• Semiconductor
Location
Ref. No. Location

1818
CDX-S2270EE
CDX-S2270EE
IC B/D
IC B/D
CN1
R6 R7
TP34
Q2 R86
R84
TP41
TP36
TP27
TP26
TP46
TP30
TP47
R71
R72
R64
R62
R63
R61
R60
R59
R26
R40
R44
C61
R41
TP42
TP21 TP22
TP25
R125
R126
R127
R128
TP29
R23
R21
R24
TP93
TP101
C58
C59
R131
R113
C5
C27
C23
C20
C19
C17
C18
C21
C29
C35C32
C34
C72 C80
Q3
C102
C53
C51
C49 C57
C48
C42
C67
C60
R52
C52
C47
C41
C40
C39
C38
C16
C13
C31 R19
R46
R45
FB4
TP35
TP33
C36
R132
R5
R4
R51
R112
Q1
C9
TP37
TP38
TP39
TP40
IC6
R13
IC2
R1
C10
X2
C28
C24
C22
C4
C7
C62
C101
C33
C45
R49
TP12
TP13
TP20
TP18
TP17
TP16
TP15
TP14
3-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) —
•Refer to page 16 for Waveforms.
•Refer to page 26 for IC Block Diagrams.
(Page 19)

19 19
CDX-S2270EE
CDX-S2270EE
3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (2/2) —
• Refer to page 16 for Waveform.
• Refer to page 26 for IC Block Diagram.
• Refer to page 29 for IC Pin Descriptions.
IC B/D
R81
R82
R83
R55
TP62
TP53
TP51
TP49
TP48
TP44
TP65
TP64
TP63
R47
R73
R58
R48
R50
R54
R56
R66
R68
R69
R67
R65
R57
R53
R11
R10
R8
R9
R70
TP32
TP31
TP1
TP2
TP3
TP4
TP5
TP10
TP11
TP43
TP67
TP66
TP23
TP24
R116
R118
R119
TP88
TP89
TP90
TP91
TP92
TP97
TP98
TP99
C106
C37
R78
R77
R91
R90
R80
R117
R42 R43
R74
R17
R16
C6
R100
R101
IC1
CN2
R12
TP7
TP6
TP9
TP8
SW4
SW1
SW3
SW2
M903
M901
M902
R2
R3 C105
R28
X1
C43
C64
C65
C103
IC3
TP74
TP75
TP76
TP77
TP78
TP79
TP80
TP81
TP82
TP83
TP84
TP85
TP86
TP87
(Page 22)
(Page 18)

2020
CDX-S2270EE
CDX-S2270EE
3-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — •Refer to page 27 for IC Block Diagram.
IC B/D
L1
C406
JC445
JC401
FB1
JC446
JC12
JC1
R405
R406
R407
R408
R409
C431
C451
C441
C461
R431
R451
R441
R461
R432
R452
R442
R462
R433
R453
R443
R463
D1
C5
R1
R410
R411
C471
C481
R471
R481
R472
R482
R4
R12
R13
R401
C13
C12
C6
C404
C405
Q481
Q471
Q461
Q441
Q451
C413
C484 C474
C432
C452
C442
C462
C7
C4 R5
C407
C401
C412
Q479
Q478
TU1
Q1
J1
IC401
J330
C11
Q431
R2
R3
C479
(Page 22)
(Page 21)