Read Sony MDS-JB980 Service Manual online
MDS-JB980
40
40
6-3. BLOCK DIAGRAM — MAIN SECTION —
X509
11.2896MHz
–1
–2
LED DRIVE
Q755
ROTARY
ENCODER
FL DRIVE
Q781, 782
D756
(STANDBY)
A/D, D/A CONVERTER
IC500
SDTO
ADDT
DADT, BCK,
LRCK
LRCK
SDTI
A
B
LINE AMP
IC101
MUTING
Q121,221
MUTING
CONTROL SWITCH
Q151
OSC
J101
-1
-2
-3
-4
RV801
PHONE
LEVEL
RV760
REC
LEVEL
D152
D151
J802
PHONES
R
L
ANALOG IN
ANALOG OUT
ADA,LATCH
DA
P2
P1
COM24
COM23
MUTE
UVBUS 3.3
ADA,RESET
CP
CS
AC IN
RELAY
+5V
AC
(TO FL781)
TR901
POWER
TRANSFORMER
UNREG +12V
RECT
D451
D451
NET MD_CLK
NET MD_SO
UNIT
RECT
D421,422
RECT
D443,444
RECT
D441, 442
79, 80, 1,2
39 – 60
3 – 37
AD1 – AD4
97,95-93
KEY0 – KEY3
COM01 – COM22
SEG01 – SEG35
S01 – S35
S36 – S39
G23
G24
G01 – G22
FLUORESCENT INDICATOR TUBE
FL781
FL/LED DRIVER
IC771
HIGH-PASS FILTER,
DIGITAL
ATTENUATOR
DIGITAL
ATTENUATOR,
SOFT MUTE
A/D
CONVERTER
BLOCK
SUB-
TRACKTION
D/A
CONVERTER
BLOCK
AUDIO
INTERFACE
CONTROLLER
CLOCK
GENERATOR,
CLOCK DIVIDER
CONTROL
REGISTER
INTERFACE
BICK
LRCK
MUTING
Q801,802
DADT
BCK
LRCK
AINL
AINR
XTI
XTO
CLKO
FLDT
SIRCS
FLCK
FLCS
JOG0
GND
SW
JOG1
TIMER
P DOWN
KB.DATA
KB.CLK
KB.CLK-CTL
l
AMS L
S713
S701 – 706, 711, 712,
S714,716.717,721-725,
S731-733
A
B
SWDT
SCLK
CDTI
CCLK
CS
PD
OSCI
OSCO
MIX AMP
IC111
(1/2)
MIX AMP
IC111
(2/2)
LOW-PASS
FILTER
IC112
(1/2)
LOW-PASS
FILTER
IC112
(2/2)
HEADPHONE
AMP
IC802
INV.
IC202
UNICORN
NET MD USB I/F
IC201
D
C
E
SWDT, SCLK
DIN1, LRCKI,
DATAI, XBCKI
DATAI, XBCKI
S751
TIMER
•
SIGNAL PATH
RESET
XIN
XOUT
X15
10MHz
REC
OFF
+3.3V
PLAY
SYSTEM CONTROLLER
IC1 (2/2)
S.RST
13
14
12
11
15
16
17
19
21
3
2
AOUTL+
AOUTL–
26
25
AOUTR+
AOUTR–
28
27
9
8
39
D.VOL 0(A)
85
D.VOL 1(B)
86
40
15
13
68
69
92
67
62
61
73
LED DRIVE
Q758
D758
(SF EDIT)
LED DRIVE
Q759
D759
(MD LP)
P4
75
72
66
65
70
38
79
STB
XTAL
EXTAL
81
7
5
75
NET MD_SI
UCS
URESET
IUPLLSW
RESET
PLLSW
CPUINT
CPUXCS
CPUSI
CPUSO
CPUCK
DSPIF0
DSPIF1
DSPIF2
DSPIF2
DSPIF3
DSPCLK
DIN1
2
4
LRCKI
XBCKI
XBCKI
DATAI
6
76
77
78
5
4
88
87
1
3
ROTARY
ENCODER
A
B
B
1
2
1 2 84
19 12
–32V
REGULATOR
IC451
–39V
(FL DRIVER (IC771) B–)
+6V
REGULATOR
IC141
–6V
REGULATOR
IC241
+3.3V
REGULATOR
IC401
RELAY
+5V
RECT
D431,432
RECT
D401,402
RECT
D411-414
RELAY +5V
REGULATOR
Q411
TR950
POWER
TRANSFORMER
RELAY
DRIVE
Q911
6
IC681
WAVE
SHAPER
9
IC406
RESET
RESET
VCC
3
5
D404
+3.3V
(SYS)
(SYS)
+3.3V
(BACKUP)
D406
D405
BT404
LITHIUM
BATTERY
CN404
OUT
VD +5V
+5V
+6V
-6V
VIN
3
1
+3.3V
REGULATOR
Q471
IC421
+5V
REGULATOR
VT +3.3V
REMOTE CINTROL
RECEIVER
IC761
4
22
21
34
7
51
52
53
56
57
58
3
PLL
OSC
X201
12MHz
47
46
CONTROL
AUDIO
8
10
11
5
USB
USB EN
USBSW
D201
CN203
DP
USB
DM
RAM
MGR
KEY
39
1
2
3
4
35
40
42
L
R
P3
LED DRIVE
Q757
D757
(FILTER)
74
KEYBOARD
OFF SWITCH
Q805
J801
KEYBOARD
+5V
DATA
CLK
6
4
3
2
1
5
BUFFER
Q803,804
BUFFER
Q801,802
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
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