Sony MDX-CA680 / MDX-CA680X Service Manual ▷ View online
17
MDX-CA680/CA680X
SECTION 3
ELECTRICAL ADJUSTMENTS
TEST MODE
This set have the test mode function.
<Set the Test Mode>
1. Turn ON the regulated power supply. (The clock is displayed)
1. Turn ON the regulated power supply. (The clock is displayed)
Note:
Press the
[OFF]
button, if the clock is not displayed.
2. Push the preset
[4]
button.
3. Push the preset
[5]
button.
4. Press the preset
[1]
button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the
1. Push the
[OFF]
button.
MD SECTION
MD section adjustments are done automatically in this set.
TUNER SECTION
Tuner section adjustments are done automatically in this set.
18
MDX-CA680/CA680X
IC101
PCM1718E/2K
IC301
CXD2662R
SECTION 4
DIAGRAMS
• IC Block Diagrams
– SERVO Board –
– SERVO Board –
INPUT
INTERFACE
DIGITAL
FILTER
5 LEVEL
DAC
LOWPASS
FILTER
CMOS
AMP
1
XTI
2
DGND
3
VDD
4
LRCIN
5
DIN
6
BCKIN
7
ZERO
8
D/C_R
9
VOUTR
10
AGND
NOISE SHAPER
5 LEVEL
DAC
LOWPASS
FILTER
CMOS
AMP
CLK
CONTROL
MODE
CONTROL
20 XTO
19 CLKO
18 MUTE
17 DM1
16 DM0
15 RSTB
14 FORMAT
13 D/C_L
12 VOUTL
11 VCC
100 99 98 97 96 95
94 93
EFMO
DVSS
TEST3
TEST2
TEST1
FGIN
SPFD
SPRD
92
SFDR
91
SRDR
90
FS4
89
FRDR
88
FFDR
87
DVDD
86
TFDR
85
TRDR
84
LDDR
83
APCREF
82
DTRF
81
CKRF
80
XLRF
79
F0CNT
78
ADFG
77
APC
76
DCHG
75 TE
74 SE
73 AVSS
72 ADRB
71 ADRT
70 AVDD
69 ADIO
62 CLTV
61 FILO
60 FILI
59 PCO
57 RFI
58 AVSS
56 BIAS
55 AVDD
54 ASYI
53 ASYO
52 MVCI
51 D3
68 VC
67 AUX1
66 FE
65 ABCD
64 BOTM
63 PEAK
50
D2
49
D0
48
D1
47
XWE
46
XRAS
45
A09
44
XCAS
43
XOE
42
DVSS
41
A11
40
A08
39
A07
38
A06
37
A05
36
A04
35
A10
34
A00
33
A01
32
A02
31
A03
30
DVDD
28
XBCK
29
FS256
26
DADT
27
LRCK
24
XBCKI
25
ADDT
23
LRCKI
22
DATAI
21
DOUT
20
DIN1
19
DIN0
18
XTSL
17
OSCO
16
OSCI
15
TX
14
XINT
13
RECP
12
DQSY
11
SQSY
10
XRST
9
SENS
8
SRDT
7
XLAT
6
SCLK
5
SWDT
4
MNT3
3
MNT2
2
MNT1
1
MNT0
PWM
GENERATOR
AUTO
SEQUENCER
SERVO
DSP
CPU I/F
MONITOR
CONTROL
CONTROL
SPINDLE
SERVO
EACH
BLOCK
BLOCK
EACH
BLOCK
BLOCK
DIGITAL
AUDIO
I/F
SAMPLING
RATE
CONVERTER
CLOCK
GENERATOR
SUBCODE
PROCESSOR
EACH
BLOCK
BLOCK
A/D
CONVERTER
ANALOG
MUX
EFM/ACIRC
ENCODER/
DECODER
PLL
SHOCK RESISTANT
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
ADIP
DECODER
COMP
ADDRESS/DATA BUS A00 - A11, D0 - D3
19
MDX-CA680/CA680X
IC302
CXA2523AR
–1
–2
+
–
IVR
BB
+
–
IVR
AA
+
–
IVR
CC
+
–
IVR
DD
+
–
IVR
+
–
EE
EE'
EFB
TESW
PTGR
48
MORFO
47
MORFI
46
RFO
45
OPN
44
OPO
43
ADDC
42
COMPP
41
COMPO
40
AGCI
39
RF AGC
38
RF
37
PEAK
36 BOTM
35 ABCD
34 FE
33 AUX
32 ADFG
31 ADAGC
30 ADIN
29 ADFM
28 SE
27 CSLED
26 TE
25 WBLADJ
24
VCC
23
3TADJ
22
EQADJ
21
VREF
20
F0CNT
19
XSTBY
18
XLAT
17
SCLK
16
SWDT
15
TEMPR
14
TEMPI
13
GND
12
APCREF
11
APC
10
PD
9
F
8
E
7
D
6
C
5
B
4
A
3
VC
VI CONV
BGR
VREF
SCRI - PARA
DECODE
+ –
–
+
AUXSW
COMMAND
+
–
IVR
GSW
+
–
FF
FBAL
FF'
TG
SEA
–
+
–
+
–1
–2
TG
TEA
WBL
3T
EQ
–
–
+
+
+
+
–
–
–
–
–
–
DET
ADIP
AGC
WBL
BPF22
BPFC
ABCDA
FEA
WBL
ATA
–
+
CVB
+
–
RFA1
–
–
–
–
1
2
–
–
–
–
–
1
2
2
GRVA
OFST
RFA2
GRV
HLPT
PTGR
–2
–1
–1
–2
BOTTOM
PEAK
RF AGC
EQ
EQ
DET
P-P
WBL
3T
WBL
TEMP
PBH
–
+
USROP
+
–
USRC
3T
BPF3T
PEAK3T
1
I
2
J
RFA3
PBSW
AUX
SW
IV
ESW
EBAL
20
MDX-CA680/CA680X
IC303
BH6518FS-E2
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GND
VG
IN4R
IN4F
VM4
OUT4F
PGND4
OUT4R
VM34
OUT3R
PGND3
OUT3F
VM3
IN3F
IN3R
PSB
CAPA
–
CAPA+
IN2R
IN2F
VM2
OUT2F
PGND2
OUT2R
VM12
OUT1R
PGND1
OUT1F
VM1
IN1F
IN1R
V
DD
CHARGE
PUMP.
OSC
INTERFACE
AMP
INTERFACE
AMP
AMP
INTERFACE
PREDRIVE
PREDRIVE
PREDRIVE
PREDRIVE
AMP
INTERFACE
AMP
AMP
AMP
V
DD
PSB
AMP
IC305
BA6287F
1
2
3
4
OUT1
VM
VCC
FIN
8
7
6
5
GND
OUT2
VREF
RIN
CONTROL LOGIC
TSD
POWER
SAVE
DRIVER
DRIVER
IC307
MSM51V4400E-70TS-K
DATA BUS
DQ3
DQ4
VSS
3
DQ2
2
A9
5
A0
9
A1
10
A2 11
A3 12
A3 12
VCC 13
NC
6
NC
7
NC
8
DQ1
1
26
23
24
25
A8
NC
NC
NC
NC
19
20
21
A6
A7
17
18
A4
A5
15
14
16
ROW
DECODERS
WORD
DRIVERS
MEMORY
CELLS
INTERNAL
ADDRESS
COUNTER
COUNTER
TIMING
GENERATOR
TIMING
GENERATOR
SENSE
AMPLIFIERS
COLUMN
DECODERS
I/O
SELECTOR
WRITE
CLOCK
CLOCK
GENERATOR
INPUT
BUFFERS
ADDRESS BUFFERS
ROW
COLUMN
22
OUTPUT
BUFFERS
OE
CAS
REFRESH
CONTROL
CLOCK
WE
4
RAS
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