Sony MEX-1HD Service Manual ▷ View online
MEX-1HD
29
29
6-3.
BLOCK DIAGRAM – AUDIO, SYSTEM Section –
PGND
6
OVER LOAD
DETECT
IC412
C
R-CH
Q306
R-CH
(L)
(R)
AUX-L
CDL
4
40
MPIN
14
MPX1
12
INPUT SELECT,
ELECTRICAL VOLUME
IC301
27
OUTLR
24
OUTSW
28
38
OUTLF
ACOUTL
33
ACINL
XMS_DET0
XMS_DET1
SYSTEM CONTROLLER
IC501 (2/3)
30 XMS_DET0
36 XMS_DET1
36 XMS_DET1
CNJ302
AUDIO OUT
FRONT
L
L
MUTING
Q305
R
R
15
11
RL-IN
14
55
15
9
4
22
RR-IN
AMP_ON
BEEP
5
LINE_MUTING
XAMP_MUTING
STBY
XMUTING
FL-IN
12 FR-IN
POWER AMP
IC304
9
7
5
3
FL+
FL–
FR+
FR–
19
RL+
RL–
21
23
RR+
RR–
CNJ201
(1/2)
2
1
FL+
FL–
FR+
FR–
RL+
RL–
RR+
RR–
3
10
4
9
11
12
ACC
ILL
D206
14
ATT
7
15
17
LEVEL SHIFT
Q201
BUZZER DRIVE
Q361
AUDIO OUT
REAR
SUB OUT
R-CH
BZ361
R-CH
(FRONT)
R-CH
(FRONT)
R-CH
(REAR)
R-CH
(REAR)
25
RTC_SI
26
RTC_SO
27
RTC_CLK
28
RTC_CS
76
XRTC_INT
74
X0A
31
XS_MUTING
MUTING
Q303
MUTING
Q301
TELATT
• SIGNAL PATH
: AM
: FM
: CD PLAY
: BUS AUDIO IN
MUTING
CONTROL
Q351, 352
16
•
R-ch is omitted due to same as L-ch.
(Page 27)
K
(Page 28)
AM/MPX2
9
D
(Page 27)
R-CH
LOW-PASS
FILTER
IC372
LOW-PASS
FILTER
IC302
7
15
2 DIN
VOUTL
8
VOUTR
XCS
14
CLK
13
DATA
D/A CONVERTER
IC371
16 SCK
3 LRCK
1 BCK
2
SCLK
7
CE
6
XINTR
4
SI
3
SO
REAL TIME CLOCK
IC502
1 32KOUT
BCLK
LRCK
MCLK
SDO
DAC_CS
DAC_CLK
DAC_SO
XDAC_CS
DAC_CLK
DAC_SO
DAC_CS
DAC_CLK
DAC_SO
21
22
29
21
SACLK
23
SAOUT
SA_CLK
SA_DATA
D_MUTING
17
XSM
20
SCL
19
SDA
ICK
IDA
1
2
FM-ANT
AM-ANT
VM
I2CSIO
I2CCKO
E2CKO
E2SIO
14
S-METER
10
MPX
8
AM-DET
FM/AM
TUNER PACK
TUX101
17
EEPROMSDA
(FM/AM ANTENNA IN)
5
VCC-8.5V
TUN8V
16
TUNER 5V
TUN5V
11
B/U 5V
BU5V
18
EEPROMSCL
SDA
SCL
IDA
ICK
12
13
53
10
11
70
71
MUTING
Q374
DIMMER DETECT
Q203
ACCESSORY CHECK
Q202
XILL_IN
TRAY_M+
TRAY_M–
TRAY_M–
TR_I_DET
FP_M+
FP_M–
FP_M–
FP_I_DET
95
XACC_IN 81
OUT1
FIN
OUT2
RIN
TRAY OPEN/CLOSE
MOTOR DRIVE
IC411
M103
XCLOSE_END
M
9
7
3
4
61
62
51
TRAY
OPEN/CLOSE
S1
D6
S2
TRAY CLOSE-END
DETECT
TRAY OPEN-END
DETECT
XTR_CLOSE_END 59
XTR_OPEN_END 58
OUT1
FIN
OUT2
RIN
FRONT PANEL
OPEN/CLOSE MOTOR DRIVE
IC411
M601
M
9
7
3
4
98
97
49
PGND
6
FRONT PANEL
OPEN/CLOSE
OVER LOAD
DETECT
IC402
PANEL CLOSE-END
DETECT
PANEL OPEN-END
DETECT
XFPCLOSE_END 99
XFPOPEN_END
A
(Page 27)
REMOTE CONTROL
RECEIVER
D904, IC902
72
80
24
LSW901, S3,
S901 – 910
3
4
X900
4MHz
17
9
KEY ACTIVE
SWITCH
Q521
BU5V
D505
XIN
XOUT
SIRCS
IN
IN
RESET SIGNAL
GENERATOR
IC904
6
RESET
SIRCS
OUT
SIRCS
CONTROLLER
IC903
KEYACK
XADON
46 KEYIN0
SIRCS
SA_DATA, SA_CLK,
D_MUTING
D_MUTING
SDO, MCLK,
LRCK, BCLK
LRCK, BCLK
XMS_DET0,
XMS_DET1
XMS_DET1
100
D311
X502
32.768kHz
X501
3.68MHz
9
92
93
8
OSCIN
OSCOUT
X1
X0
AUX IN
D907
ILL10V
MEX-1HD
30
30
6-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
6
7
4
AMP+B
8 ANT+B
9 COM8V
11 FM8V
5 BU+B
VCC
90
XRST
86
HSTX
85
RAMBU
TUNON
83
PWON
STB
2
MODE2
3
MODE1
REGULATOR
IC201
CNJ201
(2/2)
COM8V
AMP REM
ANT REM
16
5
6
B+
ANT-R
D222
D221
AMP-R
ANT REM
AMP REM
D522
THP501
D521
D210
D852-1
D851-2
D851-1
D852-2
47
TEMP
BU5V
BU5.6V
TUN8V
TUN5V
+5V
REGULATOR
Q206
+5V
REGULATOR
Q204
+10V
REGULATOR
Q851
+3.3V
REGULATOR
IC3005
REGULATOR
CONTROL
Q852
SWITCHING
REGULATOR
IC800
RESET SIGNAL
GENERATOR
IC503
LED10V
D2, 3
ILL10V
DAC5V
DA5V
+9V
REGULATOR
IC401
114
MS_LED
57
DOOR_IND
60
TRAY_LED
77
BU_IN
B+ SWITCH
Q855
LED DRIVE
Q531
ILL_ON
B+ SWITCH
Q801, 802
BATTERY CHECK
Q231 – 233
FL_ON
TRAY
ILLUMINATION
D4203, 4204
LED DRIVE
Q529
MEMORY STICK SLOT
ILLUMINATION
D5
(TRAY)
LED DRIVE
Q530
FRONT
ILLUMINATION
D1
OPEN/CLOSE
Z
111
MOTOR_ON 101
+5V
REGULATOR
IC391
B+ SWITCH
Q372, 373
MOTOR+9V, DRV+9V
D3.3V (A3.3V)
TO FL900
FL+48V
INVERTER
TRANSFORMER
T800
SYSTEM CONTROLLER
IC501 (3/3)
D806
D231, 232
D804, 805
F (–) 1.0V
F (+) 4.3V
1
15
24
3 2
13 14
RUN/SS1
5 FREQ
RUN/SS2
SNS1–
SNS1+
SNS2–
SNS2+
BG1
BG2
SW1
SW2
TG1
TG2
5
6
7
8
4
1
23
26 27
2
19
17 16
SWITCHING
REGULATOR
IC701
D2
D2
D2
D1
D1
G1
S1
G2
5
6
7
8
4
1 2
D2
D2
D2
D1
D1
G1
S1
G2
LEVEL SHIFT
Q704, 707
LEVEL SHIFT
Q705
VOLTAGE DETECT
IC707
B+ SWITCH
Q710, 717
B+ SWITCH
Q853, 854
REGULATOR
ON/OFF
Q708
D1.9V
+1.9V
REGULATOR
IC702
REGULATOR
ON/OFF
Q3000
DSP1.8V
+1.8V
REGULATOR
IC3001
FL_3.3V
FLD_ON
FL_ON, ILL_ON,
FLD_ON
VOLTAGE DETECT
IC713
VOLTAGE DETECT
IC708
MS1.8V
+1.8V
REGULATOR
IC703
BATT
VOLTAGE DETECT
IC709
SWITCHING
IC712
LEVEL SHIFT
Q706, 713
D5V (A5V, S5V)
M501
(FAN)
(FAN)
SYS3.3V
VIN
DRIVER
IC705
DRIVER
IC704
D514
D511
D513
D512
SWITCHING
IC711
J
(Page 28)
FSW_IN
XPDOWN
MAIN_PON
FSW_SFT
120
MAIN_PON
FSW_IN
FSW_SFT
78
65
37
XPDOWN
MAIN_PON
FSW_IN
FSW_SFT
XPDOWN
M
RESET
MEX-1HD
31
31
6-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• Lead Layouts
surface
Lead layout of conventional IC
CSP (chip size package)
• SERVO board, MAIN board, SUB board and POWER board
are multi-layer printed boards.
However, the patterns of intermediate-layer have not been in-
cluded in these diagrams.
However, the patterns of intermediate-layer have not been in-
cluded in these diagrams.
*
Replacement of IC3003 and IC4001 used in this set
requires a special tool.
requires a special tool.
• Circuit Boards Location
SERVO board
SWITCH board
POWER board
MAIN board
DISPLAY board
SUB board
•
A
: B+ Line.
•
B
: B– Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
(
no mark : CD PLAY
(
) : HD
〈〈
〉〉
: FM
[
] : AM
∗
: 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.
F
: FM
f
: AM
E
: MEMORY STICK PLAY
j
: USB IN
J
: CD
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
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
MEX-1HD
32
32
6-6.
PRINTED WIRING BOARD – SERVO Board (Side A) –
•
See page 31 for Circuit Boards Location.
SERVO BOARD
(SIDE A)
OPEN/CLOSE
FRONT
ILLUMINATION
(TRAY)
OPTICAL
PICK-UP BLOCK
(DAX-21EG)
NC
MOTOR
FLEXIBLE
BOARD
FLEXIBLE
BOARD
M103
TRAY
TRAY
OPEN/CLOSE
BLK
RED
M
IC6
IC5
IC3
IC8
1
2
3
4
5
6
7
8
9
10
A
B
C
D
E
F
G
H
I
J
K
1-683-442-
12
(12)
• Semiconductor
Location
Ref. No.
Location
D1
K-9
D5
K-2
D7
K-4
D8
K-4
D10
K-3
D11
K-3
D12
H-3
D13
H-3
IC3
J-4
IC5
I-2
IC6
H-2
IC8
H-9
Q1
I-3
Q10
J-6
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