Sony MDX-CA790X Service Manual ▷ View online
MDX-CA790X
29
29
5-10. SCHEMATIC DIAGRAM – MAIN Section (2/3) –
•
See page 31 for Waveforms.
R608
R609
R607
R606
C502
R520
R502
C501
D501
C500
C503
R503
C505
C504
R521
R522
CNP500
C507
C506
D500
C616
C615
C640
C614
C613
R629
R628
R
627
C610
C611
C612
R624
R625
R626
D600
R611
C604
R618
C620
X602
R620
R619
C607
C608
C609
C601
C602
IC601
C603
R
612
R613
R
614
R
615
R
616
Q600
R617
C600
S601
C606
X601
JC405
JC504
Q504
Q505
R
528
R
527
R523
R525
R526
R524
JC610
R600
S600
JC611
JC17
IC600
R623
C605
100k
100k
100k
100k
0.47
0
47
1
UDZS-5.6B
1
0.1
100k
100
10V
10V
47
16V
0
0
30P
47
16V
47 16V
MA721WA
0.01
47
16V
0.01
0.001
0.001
100
100
100
0.001
0.001
0.001
10k
10k
10k
MA152WA
47k
12p
100k
470p
32.768KHz
220
220
15p
47
16V
0.01
100
10V
10V
0.1F
5.5V
5.5V
PST3428UL
0.1
100k
100k
100k
100k
150k
DTA114EKA
47k
100p
18p
27.648MHz
0
0
2SD1664-T101
FMC2A-T148
0
100k
0
0
MN101E01KDA1
100k
15p
A1
A2
A3
A4
A5
A6
C1
C2
C3
C4
C5
SERVO3.3V
SERVO3.3V
MECH6.0V
BUS_ON
UNI_SI
BU_IN
UNI_CKO
SYSRST
BUS_SO
QUALITY
VSM
DA
VN
I2C_SCL
I2C_SDA
LCDCKO
LCDCE
LCDSO
EEP_SDA
EEP_SCL
UNI_SO
UNI_SI
UNI_CKO
BUS_ON
TU_ON
VOLATT
DIAG
STB
RCIN0
OPENREQ
BEEP
SIRCS
MUTE_CON
DOORSW
DOORSW
MECH_A
TT
LINK_OFF
ACC_IN
RCIN1
TEST
TELLA
TT
AT
T
TU_MUTE
NS_MASK
DOORIND
MDMON
MDON
OPENREQ
AD_ON
KEY1
KEY0
AD_ON
RESET
BU5.0V
RESET
SYSRST
MDMON
MDON
BU_IN
MD-ON
MECHA-ON
LINK_OFF
A-ATT
EJECT_OK
OPEN_REQ
BUS_ON
B/U_CHECK
UNISO
UNISI
UNICK
SYS_RST
B/U_3.3V
B/U_GND
LCH
AUDIO_GND
RCH
A-GND
A3.3V
DGND
D3.3V
NC
LO_6V
DISC_EXIST
RXD
FLASH_W
TXD
RESET
DAVSS
DAVDD
OSCIN
OSCOUT
XIN
XOUT
ACCIN
TESTIN
RCIN1
TELATT
ATT
NCO
NCO
NCO
NCO
NCO
NCO
NCO
VDD1
VSS1
ADON
VREF+
MOD1
MMOD
VDD2
NCO
U
N
IS
O
UNISI
BU
SO
N
S
YS
R
ST
B
UIN
U
NICK
O
KEY
ACK
N
C
O
N
C
O
N
C
O
N
C
O
N
CO
N
CO
N
CO
N
C
O
N
C
O
N
C
O
N
C
O
OP
E
NR
EQ
M
D
M
O
N
M
D
O
N
TU
A
TTIN
N
C
O
M
D
BO
O
T
E2P_CKO
E2P_SIO
DOORIND
NCO
NCO
AMPATT
DEST1
DEST2
DEST3
VSS2
NSMASK
DIAG
NCO(AUX)
DOORSW
NOSESW
NCO
VOLATT
TUATT
NCO(TUON)
NCO
AMPSTB
NCO
NCO
NCO
NCO
FLS
.S
O/LC
D
SO
FLS
.S
I/LC
D
CE
VSM
KEY
IN
1
KEYIN
0
SIR
CS
BEE
P
RCIN
0
LCD
C
K
O
NC
O
I2C
_SIO
I2C
_CK
O
NC
O
NC
O
NC
O
DA
VN
VD
D
3
NC
O
VSS3
QU
A
LITY
NC
O
NCO
NCO
NC
O
SYSTEM CONTROLLER
(2/3)
SWITCH
KEY ACTIVE
RESET SIGNAL
GENERATOR
RESET
(NOSE DETECT)
+5V
REGULATOR
REGULATOR
CONTROL
DRIVER_GND
DRIVER_GND
DRIVER_5V
-1
-2
(Page 25)
(Page 28)
(Page 30)
MDX-CA790X
30
30
R412
D371
D372
D370
CN370
D373
D375
R372
R373
R374
R371
R370
C401
R375
TH400
JW386
R377
R378
C702
D701
R700
D700
C701
C700
R367
C360
R364
R360
R361
R365
Q361
R363
Q360
D401
D402
D403
R403
R404
Q401
Q405
D404
C402
D405
IC400
R406
D407
R405
D406
R408
R407
Q403
Q402
Q404
R411
CN371
CN372
J370
CNJ400
JC404
JC421
JC420
JC407
JC403
JC406
IC700
JC361
R362
JC362
Q370
C400
1k
UDZS-18B
UDZS-18B
DF5A6.8FU
14P
DF5A6.8FU
MA111
1k
1k
1k
1k
1k
470
16V
16V
100
1k
1k
1
MA2YD1500L
100k
MA2YD1500L
10
16V
1
47k
1
50V
4.7k
10k
10k
47k
2SC2412K-T
QR
1k
2SC2412K-T
QR
UDZS-18B
MA2ZD14001SO
UDZS-18B
D360
UDZSTE-1718B
D363
UDZSTE-1718B
100
100
DTA114EKA
DTA114EKA
MA111
0.01
MA721WK
BA8271F-E2
1k
UDZS-18B
1k
UDZS-7.5B
220k
220k
DTC144EKA
DTC114EKA
2SC2412K
-T
1k
3P
3P
8P
0
0
0
0
0
0
NJM2370U36
0
47k
0
FMC2A-T148
0.22
C374
0.22
B1
B2
B3
C1
C2
C3
C4
C5
UNI_SO
BUS_SO
LINK_OFF
BUS_ON
UNI_SI
UNI_CKO
SYSRST
ILL10.0V
LCDSO
LCDCE
LCDCKO
DOORSW
KEY0
KEY1
SIRCS
DOORIND
BU
5.0V
RCIN0
RCIN1
BU_IN
AC
C_IN
TELLA
TT
AU
8.3V
BU5.0V
+B
+B
SIRCS
KEY-IN0
KEY-IN1
DOOR-IND
DOOR SW
LCD-CLK
LCD-CE
LCD-DATA
FLASH-W
GND
GND
GND
DATA
OUT
DATA
IN
OUT
DATA
IN
IN
RST
VCC
GND
DATA
VREF
CLK
BATT
RST
BUS.
BUS.
ON
B/U-C
I/O
CLK-IN
(3/3)
(CHASSIS)
REMOTE IN
BUS CONTROL IN
RESET
GND
BUS ON
BUS DATA
BUS CLK
B+
BATTERY
DETECT
SWITCH
Q401,405
BUS ON
VOLTAGE CHECK
Q402,403
SONY BUS INTERFACE
+3.6V REGULATOR
I
O
G
LEVEL
SHIFT
ACCESSORY
CHECK
LED DRIVE
-1
-2
5-11. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
•
See page 16 for IC Block Diagram.
(Page 29)
(Page 28)
(Page 31)
MDX-CA790X
31
31
CN801
LSW801
LED801
(SIDE A)
SUB BOARD
1-687-862-
11
(11)
A
K
S2
S1
A1
K1
A
K
LED801
(SIDE B)
SUB BOARD
1-687-862-
11
(11)
1
14
C
KEY BOARD
CN900
B
MAIN BOARD
CN370
(DISC SLOT ILLUMINATION)
5-12. PRINTED WIRING BOARD – SUB Section –
•
See page 23 for Circuit Boards Location.
5-13. SCHEMATIC DIAGRAM – SUB Section –
1.1 Vp-p
300 mVp-p
• Waveforms
– SERVO Board –
– SERVO Board –
1
IC1
1
,
2
(I, J)
2
IC1
ek
(RF)
3
IC1
ef
(FE)
4
IC1
wh
(TE)
5
IC4
wa
(OSCO)
6
IC7
i;
(X0)
– MAIN Board –
qa
IC90
4
(OSCO)
qs
IC600
qs
(OSCOUT)
qd
IC600
qh
(XOUT)
– KEY Board –
qf
IC901
uf
(OSC)
Approx.
150 mVp-p
150 mVp-p
Approx.
1.1 Vp-p
1.1 Vp-p
3.9 Vp-p
44 ns
1.2 Vp-p
54 ns
5 Vp-p
230 ns
2.6 Vp-p
36 ns
3.5 Vp-p
31
µ
s
2.6 Vp-p
22
µ
s
(Page 32)
(Page 27)
CN801
LED801
LSW801
14P
CL-270SR
+B
+B
+B
SIR
K1
D-SW
LCK
LCE
LDA
D-SW
LDA
NC
K1
+B
SIR
FL_W
LCE
LCK
NC
FL_W
SIRCS
+B
KEY-0
GND
GND
LCD-DATA
+B
DOOR-SW
NC
KEY-1
LCD-CLK
LCD-CE
FLASH_W
NC
DOOR-SW
+B
LCD-CLK
LCD-CE
LCD-DATA
GND
KEY-0
+B
SIRCS
DOOR-IND
KEY-1
GND
GND
FLASH_W
14
1
DISC SLOT
ILLUMINATION
(Page 33)
(Page 30)
MDX-CA790X
32
32
S903
LSW904
LSW905
LSW906
LSW907
LSW908
LSW909
LSW910
S911
LSW912
LSW915
LSW916
LSW917
LSW918
LSW919
LSW922
LSW901
R911
R904
R912
R913
LSW913
LED953
LED903
LSW914
LED911
LED952
IC971
LED933
R950
R951
R966
R967
R936
R935
S902
LED954
LSW921
LSW920
LED951
LED934
R986
R988
C982
C984
R987
C983
C981
C985
C986
R981
R982
R983
R985
R989
R990
D901
R975
R976
R977
R979
R978
R980
R971
R972
R901
R902
R903
R905
R906
R907
R908
R909
R910
R914
R915
R916
R917
R918
R919
R920
R921
D981
R941
R942
R946
R947
D983
D902
C971
R970
CN901
R927
R928
R960
R961
R962
R934
R931
R930
IC901
R929
(SIDE A)
KEY BOARD
1-686-744-
12
(12)
A
K
A
K
A
K
K
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
S2
S1
A1
K1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
S2
S1
K1
A1
2
1
4
3
4
3
2
1
1
2
3
4
A
K
A
K
A
K
4
3
2
1
4
3
2
1
37
72
36
1
LCD901
LIQUID CRYSTAL DISPLAY
SOURCE
SEL
ATT
+
−
(VOLUME)
MODE
LSW908
DSO
LED903, 911,
LED951 − 954
K
A
BTM
SENS
LSW910
DISC −
1
LSW922
DISC +
2
LSW921
REP
3
LSW920
SHUF
4
LSW919
GP/ALBM −
5
LSW918
GP/ALBM +
6
LSW917
TA
LSW915
AF
LSW909
LIST
PTY
LSW916
LCD
BACK
LIGHT
LCD
BACK
LIGHT
SEEK +
OFF
DSPL
EQ3
LED911, 951, 952
(KEY ILLUMINATION)
1
20
60
41
61
80
40
21
KEY BOARD
(SIDE B)
1-686-744-
12
(12)
C
SUB BOARD
CN801
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
SEEK −
LED903, 953, 954
(KEY ILLUMINATION)
5-14. PRINTED WIRING BOARD – KEY Section –
•
See page 23 for Circuit Boards Location.
LED903
C-1
LED911
C-13
LED933
C-11
LED934
C-3
LED951
C-13
LED952
C-12
LED953
C-1
LED954
A-2
Ref. No.
Location
Ref. No.
Location
D901
G-10
D902
G-10
D981
G-6
D983
G-5
IC901
G-7
IC971
C-13
• Semiconductor Location
(Page 31)
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