Sony CDX-M8800 / CDX-M8805X Service Manual ▷ View online
21
21
CDX-M8800/M8805X
46
ASYO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC3
41
RFACO
24
FEO
22
TEO
42 RFACI
23 FEI
21 TEI
13 FFDR
PD1
PD2
E
F
I-V AMP
PD
LD
DETECTOR
45 ASYI
27
26
29
28
19
20
E
C
D
A
B
F
36 LD
37
PD
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Siganal Path
: CD PLAY
LASER DIODE
M
M
M
13
12
VO1–
VO1+
6
7
VO4+
VO4–
8
9
VO3–
VO3+
5
4
VOL+
VOL–
FWD
REV
1
2
VIN2+ 22
14 FRDR
VIN2– 21
11 TFDR
VIN1+B 19
12 TRDR
VIN1–B 18
9 SFDR
VIN4+ 31
10 SRDR
VIN4– 32
6 MDP
VIN3+ 25
MUTE 34
11
10
VO2–
VO2+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
3
FOK
96
SQSO
97
SQCK
100
XRST
102
DATA
104
XLAT
105
CLOK
107
SENS
CD-L
MAIN
SECTION
A
81
AOUT1
86
AOUT2
CD-R
18 CD SQCK
15 CD XRST
15 CD XRST
14 CD DATA
13 CD XLAT
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD CLOK
11 CD SENS
108
SCLK
10 CD SCLK
113
GFS
8
CD GFS
114
C2POT
7
CD C2PO
115
SCOR
52 CD SCORT
81 X1
80 X0
MEC LOAD
43
MEC EJECT
44
CD
SYSTEM CONTROL
IC4
AUDIO INTERFACE
IC8
+1.5V REG
IC7
SYSTEM CONTROL
IC303 (1/3)
5V 3.3V LEVEL
CONVERTER
IC273
19 CD FOK
16 CD SQSO
DRON
41
SD1O
14
LRCK1B
19
LRCK1A
16
SD0O
11
BCK1B
18
BCK1A
15
CLCK
22
SRMSTB
41
RESET
2
STANDBY
3
BUCK
36
I2C SCL
7
I2C SDA
6
BUSO
28
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
89
LMUTE
22 CD LMUT
90
RMUTE
23 CD RMUT
20
LINK OFF
57
UNISO
26
TXD
56
UNISI
58
UNICLK
50
BUS_ON
51
BU_IN
75
RSTX
61
EJECT OK
67
MECON CHK
69
EMPH
32
DEC SDA
31
DEC SCL
30
DEC INT
29
DEC STBY
28
DEC XRST
27
DEC SSTBY
37
DEC XMUTE
65
DECON
62
OPEN REQ
63
MECON
64
CDON
66
ZMUT
60
A_ATT
25
7
1
2
6
5
3
RXD
PD1
E
F
LD
PD
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q1
+1.5V
CONTROL
Q2,3
+3.3V
CONTROL
Q5,6
77
78
X1
16.934MHz
X2
18.43MHz
XTAI
XTAO
66
BCK
60
BCKI
61
PCMDI
63
LRCK
62
LRCKI
65
PCMD
MAIN
SECTION
B
OPEN_REQ
78
EJECT OK
LINK_OFF
UNI_SO
UNI_SI
5V 3.3V LEVEL
CONVERTER
IC272
2
8
6
14
12
17
3
A_ATT
UNI_CLK
BUS_ON
BU_CHK
SYS_RST
77
CD_ON
VOUT
59
CDM_ON
71
Z_ATT
DR_6V
76
68
CDON CHK
1
5
VDD
3
CE
D_3.3V
+1.5V
+3.3V
BU_3.3V
8
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 22)
(Page 22)
22
22
CDX-M8800/M8805X
3-3. BLOCK DIAGRAM — MAIN SECTION —
3
2
PJ501
(ANTENNA)
1
4
L
CD-R
3
R
SDA
SCL
SDA
SA CLK
SCL
14
TU_SDA
13
TU_SCL
9
RDS
TUNER UNIT
TUX501
7
SYSTEM CONTROL
IC303 (2/3)
16
8
6
27 I2C_SCO
28 I2C_SIO
X
73
80
PDR+
40 AML
41 AMR
14 SA IN
SA CLK
SDA
SCL
SDA
SCL
12 SDA
13 SCL
16 SAOUT
15 MUTE
13 SCL
16 SAOUT
15 MUTE
4 PDL+
AMP
BIAS
BIAS
5
MUTE-CONDITION
19 NS_MASK
RDS DECODER
IC550
MPX
OSCD
OSCI
4
5
X550
4.3MHz
9
SDA
SCL
17 DAVN
18 BU_IN
30 UNI_SI
30 UNI_SI
10
DAVN 8
43 MDR
ELECTRONIC VOLUME
IC401
38
CREF
22
OUT RF
24
OUT LR
21
OUT RR
66
BUS/AUX
83
SA_IN
A
26
VOLATT
12
5
3
2
4
34
16
22
25
37
29
27
6
20
35
POWER AMP/MULTIPLE VOLTAGE
REGULATOR
IC201
SW1
LCD_10V
U-CON5V
A_3.3V
SW2
VP2
VP1
VP
SDA
SCL
SDA
SCL
REG5
ACGND
STB
DIAG
REG2
CN700
FL+
FL–
RL-
FR+
FR–
FR–
RR+
RR–
AMP-R
ANT-R
ATT
+B
ILL
ACC
TEST
5
6
4
10
2
9
1
12
3
11
19
17
18
13
16
14
7
15
R-CH
R-CH
BATT
BU_3.3V
U-CON 5V
CNVSS
RESET
LINK_OFF
SYS_RST
UNI_SO
UNI_SO
UNI_SO
UNI_CLK
BUS_ON
BU_CHK
A_ATT
LINK ON/OFF
SWITCH
Q112
BUS ON SWITCH
Q110,111
BATTERY CHECK
Q101
AU +8V
B ATT
PJ401 (2/2)
(CN401)
10 VCC
11 TU_VDD
R
L
R
L
SUB OUT (MONO)
BUS AUDIO IN
AUX IN
R
L
FRONT
REAR
AUDIO OUT
5
LINE AMP
IC431
7
LINE AMP
IC451
11
9
7
RL+
F901
• Signal path
: FM
: AM/MW
: CD
• R-ch is omitted due to same as L-ch.
CD-L
42 MDL
69
ILL _N
24
TEL ATT
68
ACC_IN
82
7
TU MUTE
S_METER
TUNER ATT
32
TUNER-IN
VSM
17
E2P_SDA
QUALITY
EESIO
33
16
E2P_SCL
EECKO
34
63
TEST IN
Q113
33
DR_6V
REG4
30
AU 8V
REG1
31 REG3
D_3.3V
DETECT
Q102
ILLUM CHECK
Q102
ATT
Q103
+5V REG.
Q501
MUTE
Q281,181
MUTE
Q450
MUTE
Q453
MUTE DRIVER
Q401,402
MUTE
Q271,171
AEP,UK,E MODEL
3
BUS INTERFACE
IC110
BATT
6 DATA I/O
4 CLK
4 CLK
1 BUSON
2 RST
10
B/U_C
DATA OUT 8
29 UNI_SO
DATA IN 9
31 UNI_CKO
CLK-IN 11
64 BUS_ON
BUSON 12
65
5
6
4
2
3
8
7
1
SYSRST
RST
25 ATT
13
AEP,UK,E MODEL
Q380
JR301
JR302
US,CND MODEL
Q408
JP401 (1/2)
CD
SECTION
B
CD
SECTION
C
DISPLAY
SECTION
SECTION
3
1
25
OUT LF
17
OUT SW
MUTE
Q470
2
SUB OUT AMP
IC470 (1/2)
1
8
LINE AMP
IC402
14
2
24
11
13
5
23
+3.3V REG.
IC271
20
BEEP
41
AMP_STB
AMP_DIAG 40
5
7
IC470 (2/2)
BUFFER
D301
D105
D104
CNP102
BUS
CONTROL
IN
TH100
D303
D906
D904
D307
(Page 21)
(Page 21)
(Page 23)
23
23
CDX-M8800/M8805X
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
LED DRIVER
Q907,908
LCD2
LIQUID
CRYSTAL
DISPLAY
X301
8MHz
X301
32.768MHz
11
13
XOUT
BATT
CNVSS
RESET
FL_DAT1
FL_CLK
XIN
23 GCP2
25 GCP1
27 GCP4
28
5
4
2
1
5
4
7
11
86
GCP3
F1(+)
31
SYS_CLK
30
SYS_SI
29
SYS_SO
1
SYS_CE
LCD_INH
7
CNVSS
U-CON 5V
DISP CKO
97
35
33
FL_CLK_IN
FL_CLK_IN
5
100
LCD_CE
LCD_INH
37
36
DISPLAY
SYSTEM CONTROL
IC2
1
2
DISP SO/TX
99
DISP SI/RX
98
DISP_CE
95
8 XIN
9 XOUT
X302
6MHz
13 OSC IN
11 OSC OUT
100
CNVSS
7
SIRCS 1
RESET 10
RAM_BU 91
MOT- 57
MOT+ 58
MOTOR ON 53
FP-I_DET 81
OPEN_SW 55
CLOSE_SW 54
OPEN_KEY 90
SYSTEM CONTROL
IC303 (3/3)
IC302
D905
RESET
BATT
1
2
3
+9V REG
IC703
IR
RECEIVE
IC62
IR
RECEIVE
IC503
7
7
1
1
KEYIN0 85
KEYIN1 84
RC IN1 70
RC IN0 86
KEY_ACK2 87
KEY_ACK0 88
KEY_ACK1 89
SW501
RESET
DC-DC
CONVERTER
Q623,624
LED DRIVER
Q905
SWITCH
Q621,622
+5V REG.
Q915
SWITCHING
DRIVE
Q620
FLD B+
SWITCH
Q914,916
KEY IN
MATRIX
S911-921
S901-910
S901-910
FL 900
FLUORESCENT
INDICATOR
TUBE
T620
D622
D623,624
FL_VDD
F2(-)
S932
(RESET)
LCD_10V
FL_VDD
(+5V)
LCD_10V
LCD_CE1 98
LCD_CLK 99
LCD_DATA
LED DRIVER
Q906,Q609-915
LED B+
SWITCH
Q903,904
100
85
1
I
59
7
5
MOTOR
CURRENT
DETECT
IC701
MOTOR
DRIVE
IC702
3
1
4
7
9
6
LED DRIVER
Q503,504
S601 (OPEN)
S602 (CLOSE)
S931
(OPEN)
D512
(DISC IN)
CNJ101
(REMOTE IN)
GCP
LED931
(OPEN)
LED943
(IMAGE)
LED955
LCD
BACK
LIGHT
LCD_10V
GCP MIX
IC301
LCD DRIVE
IC10
83
I
76
SEG1
I
SEG59
75
I
68
LED_SW3
I
LED_SW10
COM1
I
COM8
LED_SW1
84 LED_SW2
DIMMER
21 LAT
22 BK
99 FL_DAT2
3 FL_DAT3
M601
(OPEN/CLOSE)
D70
(IR RECEIVER)
D513
(IR RECEIVER)
FL_ON
93
FLW_OUT
22
FLD_ON
92
RING
LICHT
RING
LICHT
BUTTON
LICHT
OUT
CT
SWITCHING
REGULATOR
IC620
V+
MAIN
SECTION
C
(Page 22)
24
24
CDX-M8800/M8805X
3-6. WAVEFORMS
3-7. CIRCUIT BOARDS LOCATION
3-5. 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.)
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
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W 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.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• CD mechanism section
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Key sections
no mark : FM
no mark : CD PLAY
• Main (1/4), (2/4), (3/4), (4/4) and Key sections
no mark : FM
(
) : AM/MW/LW
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: AM/MW/LW
• Abbreviation
CND : Canadian model.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
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.
• Abbreviation
CND : Canadian model.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
MAIN board
DISPLAY board
SENSOR board
SWITCH board
SERVO board
SPEAKER board
tuner unit
(TUX501)
(TUX501)
SUB board
1
—
Display Board
—
(MODE: FM)
5Vp-p
8MHz
IC2
qa
(XOUT)
— Servo Board —
(MODE: CD PLAY)
1
2
Approx. 100mVp-p
IC3
wa
(TEI)
0V
IC3
wh
(A),
wk
(C)
3
4
5
6
16.9344MHz
IC3
uj
(XTAO)
7
0V
Approx. 100mVp-p
IC3
wd
(FEI)
Approx.
150mVp-p
150mVp-p
IC3
wj
(B),
wl
(D)
IC3
ra
(RFACO)
Approx.
150mVp-p
150mVp-p
Approx.
0.8Vp-p
0.8Vp-p
2Vp-p
18.43MHz
IC4
ia
(X1)
1Vp-p
—
Main Board
—
(MODE: FM)
1
5Vp-p
2
32.768kHz
IC303
9
(XOUT)
3
6MHz
IC303
qa
(OSCOUT)
4.3MHz
IC550
4
(OSCD)
2.8Vp-p
2.8Vp-p
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