MDX-C7890R (serv.man2) - Sony Car Audio Service Manual (repair manual)

mdx-c7890r (serv.man2) service manual
Model
MDX-C7890R (serv.man2)
Pages
5 Few pages! See other manuals at the bottom of the first or last page.
Size
112.99 KB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio / SUPPLEMENT-1
File
mdx-c7890r-sm2.pdf
Date

Read Sony MDX-C7890R (serv.man2) Service Manual online

SERVICE MANUAL
MDX-C7890R
SUPPLEMENT-1
File this supplement with the service manual.
AEP Model
Subject: Block Diagrams
Sony Corporation
Personal & Mobile Communication Company
9-925-788-81
98C0541-1
Printed in Japan  © 1998. 3
Published by Quality Assurance Dept.
MDX-C7890R
– 3 –
– 4 –
BLOCK  DIAGRAMS  – SERVO Section –
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
1
2
J
I
4
5
6
7
A
B
C
D
8
9
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP
(KMS-241A/J2N)
AUTOMATIC
POWER
CONTROL
Q302
11
10
APC
PD
LD/PD
AMP
12
APCREF
I-V
AMP
I-V
AMP
AT
AMP
B.P.F.
29
30
WBL
ADFM
ADIN
32
ADFG
ABCD
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
35
34
26
28
ABCD
FE
TE
SE
V-I
CONVERTER
20
F0CNT
WBL
3T
EQ
+3.3V
SERIAL/
PARALLEL
CONVERTER,
DECODER
COMMAND
17
16
18
SWDT
SCLK
XLAT
RF AMP
B.P.F.
46
RFO
40
RF AGC
& EQ
AGCI
EQ
38
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC302
TEMP
48 47
MORFO
MORFI
3T
PEAK &
BOTTOM
WBL
33
AUX
73 62
37
PEAK
36
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC303
6
8
OUT4F
OUT4R
M
M901
(SPINDLE)
27
25
OUT2F
OUT2R
M
M902
(SLED)
21
23
OUT1F
OUT1R
12
10
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
3
4
IN4R
IN4F
29
30
IN2F
IN2R
19
18
IN1F
IN1R
14
15
IN3F
IN3R
SPFD
SPRD
IC306
92
91
88
89
86
85
83
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
16
PSB
PWM GENERATOR
AUTOMATIC
POWER
CONTROL
DIGITAL
SERVO
SIGNAL
PROCESS
74
65
64
75
66
63
ANALOG MUX
A/D CONVERTER
AUTO
SEQUENCER
13
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC301 (2/2)
RECP
PEAK HOLD
Q301
+3.3V
ABCD
AUX1
AUX2
ABCD
FE
TE
SE
PEAK
BOTM
81
80
82
XLRF
CKRF
DTRF
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
PLL
FILTER
59
58
61
60
FILI
PCO
CLTV
FILO
100
EFMO
23
ADDT
IC301 (1/2)
15
TX
COMPA-
RATOR
51
52
55
ASYO
ASYI
RFI
ADIP
DEMODULATOR/
DECODER
78
ADFG
SPINDLE
SERVO
79
F0CNT
94 93
SPFD
SPRD
SUBCODE
PROCESSOR
24
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
22
21
DIN
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M BIT D-RAM
IC301 (1/2)
DADT
INTERNAL BUS
D-RAM
CLOCK
GENERATOR
25
26
27
512FS OSC
IC304
XBCK
LRCK
FS256
BCK
LRCK
FS256
X301
22.5792MHz
16
OSCI
17
OSCO
CPU
INTERFACE
MONITOR
CONTROL
10
XRST
12
DQSY
11
SQSY
14
XINT
9 8
5 6 7
SENS
SRDT
SWDT
SCLK
XLAT
LEVEL SHIFT
IC502
5
13
3 1
6
12
4 2
LEVEL SHIFT
IC503
1
2
3
4
MNT0
MNT1
MNT2
MNT3
13
1
3
5
12
2
4
6
FOK
SHOCK
XBUSY
SLOCK
SWDT
SCLK
XLAT
59
62
55
54 52
45 51 64
26 27 28 29
MNT0
MNT1
MNT2
MNT3
21
LOCK
39
TEMP
MD-RST
SQSY
CC-XINT
SENS
MD-SI
MD-SO
MD-CKO
MD-LAT
7
6
EJECT
LOAD
5
4
05
1
7
M
RIN
FIN
OUT1 OUT2
LOADING
MOTOR DRIVE
IC305
M903
(LOADING)
63
C-SW
LOADING START/
EJECT END
E-SW
LOADING
END
LIMIT-IN
(LIMIT)
ON: When the disc loading start 
and the disc eject completion.
ON: When the optical pick-up is
inner position.
(ON: When completion of the disc loading.)
31
32
EXTAL
XTAL
X501
10MHz
TH501
47, 46, 48, 49
1, 2, 24, 25
D0 – D3
32 – 29, 34 – 38, 43
9 – 12, 14 – 18, 5
A0 – A9
D0 – D3
A00 – A09
41
22
45
3
44
4
42
23
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC307
A
DADT
(Page 5)
(Page 5)
B
BCK, LRCK, FS256
(Page 5)
C
LOCK
MD MECHANISM CONTROLLER
IC501 (1/2)
• SIGNAL PATH
: MD PLAY
11
56
– 5 –
– 6 –
MDX-C7890R
– MAIN Section –
MUTING
Q991
B+ SWITCH
Q51
MUTING
CONTROL SWITCH
Q903
LOW-PASS
FILTER
IC203
35
36
37
L3 (MD-L)
L4 (AUX-L)
L2 (FM-L)
38
L1 (AM-L)
1
4
2 FM-ANT
AM-ANT
6
VCO
FM +B
AM +B
+B
21
FM-IF
11
AM-IF
5
8
10
9
9 16
11
13
6
1
5
20
4 2
9 10 11 85
18
VT
DOUT
DIN
CLK
XI
XO
CE
PLL SI
58 LOCK IN
PLL SO
PLL CKO
PLL CE
65
AF SEEK
82
53
S METER (VSM)
83
SD IN
81
ST IN/MONO
62
TU ATT
26
VOL SO
27
VOL CKO
41
VOL CE
31
DBMOD1
16
DBMOD2
59
EMPH O
52
MPDH (MTP)
FM OSC
15
AM OSC
SEEK
IF
PD
13
SEEK
70
RDS SI
71
RDS CKI
67
DAVN
19
S-METER
20
SD
22
18
16
12
ST/MONO
23
FM-DET
FM-L-CH
FM-R-CH
AM
DET
VOLUME
CONTROL
INPUT
SELECTOR
TONE
CONTROL
33
27
28
LVR
IN
LS
IN
LT
OUT
COMMAND
34
LSELO
22
23
LT
IN
FL-IN
FRONT L (+)
FRONT L (–)
FRONT R (+)
FRONT R (–)
REAR L (+)
REAR L (–)
REAR R (+)
REAR R (–)
FL+
1
9
4
12
2
10
3
11
FL–
FR+
FR–
RL+
RL–
RR+
RR–
FR-IN
RL-IN
RR-IN
LS
OUT
FADER
CONTROL
CONTROL
SHIFT
REGISTER
& LATCH
DECODER
21
LF
OUT
20
17 16 18
LR
OUT
DI
CL
CE
MUTE
ST-BY
DATA
CLK
CE
DATA
CLK
CE
LOW-PASS
FILTER
Q4
AF SEEK
SWITCHING
Q5
X1
7.2MHz  
FM/AM PLL
IC100
05
B
(Page 4)
(L)
(R)
R-CH
BCK, LRCK, FS256
BCK, LRCK
FS256
• SIGNAL PATH
: MD PLAY
: FM
: AM (MW)
NOISE
SHAPER
INPUT
INTERFACE
D/A
CONVERTER
MODE
CONTROL
CLK
CONTROL
DIGITAL FILTER, 
D/A CONVERTER
IC202
12
9
12
5
3
11
VOUTL
VOUTR
R-CH
R-CH
14
R-CH
15
MUTING
Q101
MUTING
Q100
MUTING
CONTROL SWITCH
Q103
R-CH
60
AU ATT
55
AMP ATT
56
80
AMP ON
32 57
ILL IN
MUTING
Q302
MUTING
CONTROL SWITCH
Q700
R-CH
R-CH
POWER AMP
IC500
R-CH
MUTING
Q303
LEVEL
SHIFT
Q500
R-CH
MUTING
Q301
R-CH
R-CH
6
5
4
1
7
18
17
DATA
BCK
LRCK
ZERO
XTI
MUTE
DM2
OUTPUT
INTERFACE
CIRCUIT
DIGITAL
SIGNAL
PROCESSOR
INPUT
INTERFACE
CIRCUIT
LEVEL
SHIFT
IC204
SYSTEM
CLOCK
SELECTOR
& VCO
PHASE
COMPARATOR
COUNTER
SEQUENTIAL
CONTROL
MODE
CONTROL
DIGITAL D-BASS CONTROL
IC201
DIGITAL AUDIO PLL
IC200
10
9
11
DOUT
BCKO
LRCO
2
3
1
DI
5
3
1
BCK
LRCK
6
4
2
BCKI
LRCI
CLK
4
AMPI
PD
4
REF
1
C
(Page 4)
LOCK
A
(Page 4)
DADT
2
CKO
10
14
MOD1
15
MOD2
MODE1
EMPH
MODE2
MODE1
EMPH
MODE2
16
DB/DS
CNP300 (1/2)
J1
(FM/AM ANTENNA)
FM/AM TUNER UNIT
TU1
AM B+
D3
FM B+
BUS AUDIO IN
(L)
(R)
R-CH
CNP300 (2/2)
CNP500 (1/2)
LINE OUT
FRONT
RDS DECODER
IC102
MASTER CONTROLLER
IC700 (1/3)
ELECTRICAL VOLUME
IC300
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X2
4.332MHz
4
8
5
OSCI
OSCO
10
9
14
SDA
VDDA
7
VDDD
SCL
DAVN
RDS SIGNAL
BUFFER
Q50
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16
18
19
MPX
CIN
4
FM B+
BACKUP +5V
5
SC
OUT
MULTI
PATH
DETECTOR
20
2
LVIN
MPTH
RV1
RV1
SIGNAL
METER
IC103
LOW-PASS FILTER
SWITCHING
AM B+
+
LO/DX
LO/DX
DIGITAL
FILTER
SIGNAL
METER BUFFER
Q1
SEEKOUT
TEL ATT
TESTIN
21
23
9
7
17
19
4
22
TEL ATT
TEST
13
15
ILL IN
14
– 7 –
– 8 –
MDX-C7890R
– DISPLAY/KEY CONTROL Section –
Q802
D811 – 817,
LSW802, 807, 812
LSW801, 804, 806,
LSW808, 809 – 811,
LSW813 – 821
05
37
REIN1
D-BASS IN
KEYACK
AMBER
79
NOSE SW
12
BEEP
15
LCDANG
40
2
DATA
18
CLK
17
21
20
STB
OSC OUT
OSC IN
19
50
KEY IN1
REIN0
106 107
KEY IN0
X1
X0
X1A
X0A
RC IN0
RC IN1
46
47
49 72
93
92
73
LCD SO
13
LCD CKO
14
LCD CE
104
74
KEY ACTIVE
SWITCH
Q905
BUZZER
DRIVE
Q701
OSC
B+ SWITCH
Q806
D912
VOL+
VOL–
D900
J900
(REMOTE IN)
Q801
VLC0 – VLC5
GREEN
POWER ON
1
DIMMER
3
4
LED DRIVE
Q803
CONTRAST
SWITCHING
Q901, 902
AD ON
D
(Page 10)
DIMMER
LSW801 – 804,
LSW806 – 821
ROTARY
ENCODER
EN801
BACKUP +5V
CNP801
FRONT PANEL SIDE
BZ1
(BUZZER)
CN900
MAIN BODY SIDE
LCD +10V
LCD +10V
BATT
12
12
LSW805
D-BASS
LED DRIVE
Q804
11 – 6
22 – 25
X700
3.68MHz
X701
32kHz
KEY IN1 – KEY IN4
R845
LIQUID CRYSTAL DISPLAY DRIVER
IC801
MASTER CONTROLLER
IC700 (2/3)
LCD801
LIQUID CRYSTAL DISPLAY
26 – 90
SEG1 – SEG65
100 – 93
COM0 – COM7
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
EN801
Page of 5
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Download Sony MDX-C7890R (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sony MDX-C7890R (serv.man2) Service Manual in PDF. MDX-C7890R (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony MDX-C7890R (serv.man2) Car Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.