Sony MEX-5DI Service Manual ▷ View online
25
25
MEX-5DI
4-4. BLOCK DIAGRAM — TUNER SECTION —
1
2
17 18
98
92
93
73
74
72
80
46
10 11
70 71 53
31 6
97
3
4
9
7
6
49
16
100
99
12 13 14
8
10
9
12
4
43
28
27
24
38
33
40
19 20 14 13
23 21
17
MUTE
CONTROL
Q530
MUTE
CONTROL
Q363,364
MUTE
Q453
MUTE
Q451
MUTE
Q351
L
R
MS-L
MS-R
-1
-2
CN301-1,-2
BUS AUDIO
IN/AUX IN
CN101
(ANTENNA)
R
L
L
R
L
R
CN451-1,-2
FRONT
CN451-3,-4
REAR
CN301-3,-4
SUB OUT
R-CH
R-CH
AM-ANT
FM-ANT
AM DET
MPX
SDA
SCL
SDA
SCL
S-METER
9
RDS DET
EEPROM
AUX-L
ADSO1
ADSO2
MD-L
AC IN L
ELECTRONIC VOLUME
IC301
SDA
SCL
MPIN
LEVEL
SM
SAOUT
SACLK
AM/MPX2
MPX1
CD-L
A OUT L
OUT SW
OUT LF
OUT LR
LCH
ADSO
IC302
IC302
ADSO SW
IC309
-4
-3
-1
-2
-3
-4
R-CH
R-CH
MOTOR+
MOTOR-
MOTOR-
FP IDET
OPEN SW
CLOSE SW
XIA
XOA
KEY ACK
AD ON
KEY INO
TEL ATT
95
ILL IN
81
ACC IN
84
TEST IN
83
POW ON
115
TUN ON
57
DDC-ON
ATT
15
BEEP
E VOL ATT
VSM
I2C-SCL
I2C-SDA
4
ADSO1
T.ROM SCL
T.ROM SDA
XI
XO
56
NS MASK
KEY
S200-208,210
46
FAN
AD ON
Q504
TUNER UNIT
TUX201
X502
3.68MHz
X501
32.768kHz
MOTOR
DRIVE
IC703
M
M601
(OPEN/CLOSE)
S601
(OPEN)
S602
(CLOSE)
L-CH
R-CH
R-CH
A-ATT
EJECT
SYSTEM CONTROL
IC501 (2/3)
CN401
14
15
7
13
6
TEL MUTE
ILL
ACC
TEST
AMP R
5
ANT R
FAN1
16
BATT
BATT
I-DET
IC701(1/2)
AUDIO
OUT
BEEP DRIVE
Q901
BUZZER
CD
SECTION
A
SA CLK
SA OUT
MS MUTE
DISPLAY
SECTION
SECTION
D
DISPLAY
SECTION
SECTION
C
BZ901
5
SDSO2
32
MNI AU
50
QUALITY
75
DAVN
6
NOISE
DET
IC102
7
16 FM DET
4 OSCO
5 OSCI
8
DAVN
9
SDA
10
SCL
BU5V
BATT
FAM MOTOR
POWER CONTROL
Q871-873
Q142
TUNER POWER
CONTROL
Q861,862
POWER
CONTROL
Q866,867
+5V REG
Q101
TEL MUTE
Q406
ILLUMI CHECK
Q404
ACC CHECK
Q405
+5V REG
IC307
MS AMP
IC310
+5V REG
Q851
FM AMP
Q141
REG
Q865
AMP POWER
CONTROL
Q401 (1/2),402
ANT POWER
CONTROL
Q401 (2/2),403
AUDIO POWER
CONTROL
Q863,864
BATT
BATT
TU+8.5V
AUDIO+8.5V
BU+5V
TU+5V
+5V
TU+8.5V
AUDIO+8.5V
8.5V
Q352
RDS DECODER
IC101
BUS-GND SW
X101
4.332MHz
AEP,UK,E MODEL
• Signal path
: CD
: FM
: AM
• R-ch is omitted due to
same as L-ch.
(Page 26)
(Page 24)
(Page 26)
26
26
MEX-5DI
4-5. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 24)
(Page 25)
(Page 25)
35
13
10
14
61
62
101
51
60
17
19
14
77
86
90
85
7
18
47
24
9
2
13
11
9
12
3
2
8
11
3
4
5
6
4
2
3
1
7
8
17
9
3
4
IR
RECEIVE
IC206
RESET
IC502
RESET
BATT
CHECK
LED
DRIVE
Q201
+9V REG
IC704
I-DET
IC701(2/2)
BU+5v
X901
4MHz
3
4
9
7
6
BATT
CHECK
Q602
CD ON IN
T-CLOSE
T-OPEN
T-OPEN
MOTOR ON
TR-DET
LED ON
BATT
MOTOR +9V
UNISI
UNICKO
BUSON
BUIN
HSTX
RSTX
RSTX
UNISO
RAM BU
SYS RST
TEMP
SIRCS
37 FSW SFT
57 DDC ON
53 BOOST
RT
VCC
SH3 SO
TH501
OUT2
INA2
7
OUT1
71
33
Q506
MOTOR
DRIVE
IC702
CD ON
M3
(LOADING)
UNISI
LINK OFF
UNI CLK
BUS ON
BU IN
SYS RESET
UNISO
6
BUFFER
IC201
SIRCS
CONTROL
IC901
SYSTEM CONTROL
IC501 (3/3)
D218
Q604
BUS INTERFACE
IC601
BCLK
B DATA
BUS ON
BUS ON
B+ (BATT)
CN601
(BUS CONTROL IN)
RESET
S209
12
SH3 SI
2
MS CHK
3
MS SET
117
DP SW
118
DP RST
116
MSTPW
SA CLK
SA OUT
MS MUTE
Q912
48
TEMP
36
MS LED
D2,4-7
D201-204,208
M
CD
SECTION
B
TUNER
SECTION
D
TUNER
SECTION
C
10
9
2 RT
VCC
OUT2
7
OUT1
1
2
4
5
12
13
9
10
8
6
BUS
CONTROL
Q603
POWER
CONTROL
Q809,811
DC-AC CONV.
CONTROL
Q201,206,207
POWER
CONTROL
LED
DRIVE
ON/OFF
DRIVE
Q813,814
ON/OFF
DRIVE
Q801,802
ON/OFF
DRIVE
Q810,812
+9V
+3.5V
SH+3.3V
SCARLET
+3.3V
+3.3V
ON/OFF
DRIVE
Q805,806
POWER
CONTROL
Q803,804
SHIFT
Q808
SHIFT
Q807
BUS
ON
34
35
36
37
72
1
HSYNC
VSYNC
DCLK
RXD
TXD
MS SW
30
31
9
13
14
12
1
4
TEMP DET
Q501-503
+6.5V REG
Q204
+5V REG
IC201
D/A
CONV.
DSP
5
1
1
4
4-8
12-16
19-23
19-23
R.G.B
R.G.B
RGB DECODER,
RGB CONTROL
IC913
Q914
Q913
Q911
SPR
MS-L
R-CH
REVI
REVO
LBR
SPL
LP
CLK
1
4
8
3
4
+3.3V REG
IC204
BRIGHT
CONTROL
IC209
BRIGHT
CONTROL
IC208
CONTRAST
CONTROL
IC205
DC-DC CONVERTER
IC802
Q815
DC-DC CONVERTER
IC801
DC-AC
CONVERTER
IC203
ON/OFF
DRIVE
Q202,203
VOLT
CHECK
IC914,915,916,918
DIMMER
CONTROL
IC200,Q200
DIMMER
CONTROL
IC202
-15V
+15V
COM
V10
V3
V0
LCD+5V
LCD+3.3V
6
2
Q205
+6.5V
BATT
BATT
CONTRAST
PWM
RV402
LCD201
VOUT
IC210
IC210
1.8V OK
1.9V OK
2.5V OK
3.3V OK
DIGITAL BOARD
T201
BL201
BACK-LIGHT
RGB DRIVE
IC207
1
10
+9V
INV+9V
27
27
MEX-5DI
SERVO board
MAIN board
DIGITAL board
DISPLAY board
SWITCH board
4-6. CIRCUIT BOARDS LOCATION
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 portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
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 diagram:
• 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.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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.
F
: FM
f
: AM/MW/LW
J
: CD
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
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)
(Side A)
parts face are indicated.
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
IC2
qg
(RFAC)
0.7Vp-p
2
Approx. 200mVp-p
IC2
qh
(FE)
0V
3
Approx. 600mVp-p
IC2
qk
(TE)
0V
5
6
7
IC1
o;
(BCK)
3Vp-p
8
12.288MHz
IC11
yg
(XTXAL)
2.2Vp-p
3.5Vp-p
16.9344MHz
IC1
of
(XTAO)
3.8Vp-p
474msec
4
IC1
rd
(MDP)
3.3Vp-p
IC1
ih
(LRCK)
7.6µsec
22.7µsec
—
Main Board
—
1
2
32.768kHz
IC501
uf
(X0A)
4.332MHz
IC101
4
(OSCO)
2.8Vp-p
3
3.68MHz
IC501
os
(X0)
4
4MHz
IC901
4
(XOUT)
2.2Vp-p
2.8Vp-p
3.5Vp-p
28
28
MEX-5DI
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
TP4
TP2
C53
R132
R102
IC14
C79
C59
L2
TP80
TP78
TP75
TP74
TP73
TP59
TP58
R105
R104
IC13
C39
D6
TP72
X2
TP40
TP39
R134
R137
R135
C75
R92
IC11
R69
C54
IC4
R140
C51
R81
L6
D4
C83
L4
C56
C57
IC10
L1
C48
L3
R116
C66
C72
C36
R113
R111
R115
R109
R90
R88
R91
R85
R89
R83
R70
R142
R86
R72
R25
R97
CN4
TP102
D22
TP101
TP56
C60
C29
C28
C45
R99
TP71
TP70
TP69
R77
R41
C25
C34
C47
C38
R59
C21
R34
R27
R26
C50
L5
L7
X1
C67
D3
TP1
TP5
C27
TP7
C73
R21
R71
C35
R28
R100
C62
TP35
TP37
TP42
C26
R60
R55
R61
C77
TP50
TP49
Q6
R74
C68
C76
TP17
R43
R44
R46
R51
C74
R48
Q5
TP67
TP18
TP30
TP36
TP38
TP43
TP44
TP45
TP46
TP48
TP51
TP84
TP85
TP86
D5
FB2
R156
R133
Q3
D19
D18
C96
L11
C91
C31
R50
C32
4-7. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 27 for Circuit Boards Location.
Ref. No.
Location
(D2)
F-10
D3
G-2
D4
J-6
D5
J-9
D6
J-2
(D7)
F-2
(D8)
H-5
(D9)
E-3
(D14)
D-4
(D15)
D-4
(D16)
E-4
(D17)
E-4
D18
I-3
D19
I-3
D22
I-3
(D25)
A-6
(D26)
A-6
(IC1)
H-3
(IC2)
E-3
(IC3)
C-3
IC4
H-9
(IC5)
H-9
(IC6)
I-5
(IC7)
B-5
(IC8)
D-4
(IC9)
G-2
IC10
H-8
IC11
I-6
(IC12)
I-10
IC13
H-8
IC14
I-6
(IC15)
H-9
(Q1)
B-5
(Q2)
F-3
Q3
G-2
Q5
G-3
Q6
G-2
• Semiconductor
Location
( ): SIDE B
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