Sony DAV-C770 / HCD-C770 / HCD-C990 Service Manual ▷ View online
HCD-C770/C990
33
33
7-2.
BLOCK DIAGRAM – AUDIO (DSP) Section –
DIGITAL AUDIO
INTERFACE
IC606
16
DATA
13
CKOUT
14
BCK
15
LRCK
36
DI
35
DO
38
CL
37
CE
17
XSTATE
48
XMODE
DIGDI
DO
DIGCLK
DIGDI
DIGCLK
DIGCLK
CSDIR
XST
RSTDIR
34
ERROR
24
AUDIO
B
CDDOUT
(Page 32)
R
NSMUTE
(Page 34)
O
SPDIF
WARFI
WCK
(Page 35)
P
AV0 – AV2
(Page 35)
S
RSTAD
(Page 34)
20 XMCK
168 SDEF
165 XSHD
166 SDCK
167 XSAK
6 MSDATO
4 MSDATI
3 MSCK
2 XMSLAT
7 MSREADY
10 SMUTE
MSDATO
MSDATI
MSCK
XMSLAT
SHRRDY
SHRMUT
29 TDO
27 TDI
26 TCK
30 TMS
31 TRST
SDEF
SDEF, XSHD,
XDCK, XSAK
XDCK, XSAK
XSHD
XDCK
XSAK
64
DSAL
63 DSIFL
58 EXID1
57 EXID2
29 BCK2
28 LRCK2
28 LRCK2
EXID2
BCK2
LRCK2
EXID2
BCK2
LRCK2
59 EXIMCK
55 EXIBCK
56 EXILRCK
55 EXIBCK
56 EXILRCK
EXID1
EXIMCK
EXIBCK
EXILRCK
EXID1
PLOCK
DIGDI
DO
DIGCLK
CSDIR
XST
RSTDIR
PLOCK
EXIMCK
EXIBCK
EXILRCK
9 XRST
XRST_DSD
5
DIN2
3
DIN0
127 WAVRB
123 WCK
126 WARFI
4
DIN1
54 TUN-DO
55 TUN-CLK
53 TUN-CE
51 TUNED
55 TUN-CLK
53 TUN-CE
51 TUNED
52 TUN-DI
32 HACN
68 GP9
68 GP9
35 HDOUT
34 HCLK
33 HDIN
DSD DECODER
IC801
16Mbit
SD-RAM
IC808
DIGITAL AUDIO
PROCESSOR
IC612
SYSTEM CONTROLLER
IC901 (1/3)
DIGITAL AUDIO
SIGNAL PROCESSOR
IC607
D5V
X600
12.288MHz
Q205
J205 (1/4)
J206 (1/3)
Q206
22
21
XIN
XOUT
OPTICAL RECEIVER
IC204
LEVEL SHIFT
IC900
LEVEL SHIFT
IC812
LEVEL SHIFT
IC813
OPTICAL
DIGITAL IN
VIDEO 2
SD0 – SD7
169 – 176
REFERENCE VOLTAGE
GENERATOR
IC402 (2/2)
143
XWE
15 WE
145
XRAS
17 RAS
144
XCAS
16 CAS
142
DCKE
34 CKE
35 CLK
35 CLK
DQ0 – DQ7
DQ0 – DQ7
A0 – A11
2, 3, 5, 6, 8,
9, 11, 12
139-136,
134-131
162-159, 157-154,
152, 151, 149, 148
A0 – A11
141
DCLK
S-RAM
IC604
44
CS0
41 OE
45
WE0
17 WE
D0 – D15
D0 – D15
A0 – A15
7-10, 13-16,
29-32, 35-38
108, 107, 105-102, 99
98, 80-77, 75-72
112, 110, 109,
97-92, 82-85, 66-64
A0 – A15
5-1, 44-42,
27-24, 21-18
66
DSAR
64 DSIFR
69
DSAC
65 DSICT
71
DSALFE
66 DSISW
74
DSALS
67 DSISL
76
DSARS
68 DSISR
62
PHREFO
62 DSBCKF
13
EXCKO1
52 MCK
47
F2FLREX1
18 SDI1
46
F2CSWEX2
30 SDI2
45
F2SLR
114 SDI3
49
CKOUT
22 KFSIO
43
F2BCK
17 BCKI1
44
F2LRCK
77 SELEXT
78 SYNC
15 LRCKI1
59
EXLOCK
69
GP8
33 AD-RST
7
DIG-DI
97
DF-SW
98
DF-SYNC
25
DI
8
DIG-CLK
20
DIR-CE
DSP-PM
DSP-CS
DSP-BST
DSP-RST
24
DIR-XMODE
22
DIR-XST
18
DIR-ZERO
6
DSP-DO
15
DSP-HACN
17
DSP-GP9
19
DIR-ERR
23
DIR-AD
28
DAMP-MUTEN
67
GP10
23
SDO1
24
SDO2
26
SDO4
D4
D1
D2
D3
SCK
BCKO
LRCKO
25
SDO3
14
SCKOUT
20
BCKO
19
LRCKO
LOW-PASS
FILTER
IC603
FM/AM TUNER PACK
AUDIO INPUT
SELECTOR
IC202
A/D CONVERTER
IC602
AMP
Q221
1 Y0
2 Y2
3
10 9
Y
A B
15
16 6
DOUT
14
BCK
13
LRCK
SYSCLK
RSTB
5 Y1
1 LIN
5 RIN
R-CH
DO
CK
CE
TUNED
FM-DET
FM ANT
GND
AM ANT
GND
L-CH
R-CH
DI
TUDO
TUCLK
TCE
TUN
TUDI
RDSC
RDSD
R-CH
R-CH
R-CH
TUDO
TUCLK
TCE
TUN
TUDI
COAXIAL
FM
75Ω
AM
AV DATA BUS
SD0 – SD7
C
(Page 32)
E
(Page 32)
J
(Page 32)
164 XSRQ
XSRQ
K
(Page 32)
11 MCKI
768FS
H
(Page 32)
M
(Page 32)
TDOSA, TDISA,
TCK, TMS, TRST
TCK, TMS, TRST
N
(Page 35)
G
(Page 32)
A
(Page 32)
TDOSA
TDISA
TCK
TMS
TRST
19-24, 27-32
96 AV-SEL1
48 AV-SEL2
48 AV-SEL2
95 AV-SEL0
94 RDS-CLK
88 RDS-DATA
AV1
AV2
AV0
RDSC
RDSD
AV2
AV0
65
DFIL RST2
PM
HCS
BST
RSTDSP
13 14 16 12
113
PM
36
HCS
56
BST
2
XRST
PM
Q903
D903
D490
12V
HCS
BST
RSTDSP
T
DIGDI, DIGCLK
(Page 34)
Q
D1 – D4, SCK,
BCKO, LRCKO
BCKO, LRCKO
(Page 34)
ENABLE
SWITCH
Q908 – 910
POWER ON
MUTING
Q490, 492
79 INIT
12
9
X601
13.5MHz
MCLK2
MCLK1
• SIGNAL PATH
: CD PLAY
: AUDIO
: DVD PLAY
: OPTICAL
DIGITAL IN
: AUX IN
: TUNER
: SACD PLAY
VIDEO 1
AUDIO IN
VIDEO 2
AUDIO IN
L
R
L
R
MSDATO, MSDATI, MSCK,
XMSLAT, SHRRDY, SHRMUT
XMSLAT, SHRRDY, SHRMUT
• R-ch is omitted due
to same as L-ch.
4
13
14
2
DET AMP
Q201
16
X201
4.332MHz
RDS DECODER
IC201
(AEP)
(AEP)
MUX
X1
X0
RDATA
RCLK
HCD-C770/C990
34
34
7-3.
BLOCK DIAGRAM – AUDIO OUT, PANEL Section –
• SIGNAL PATH
: AUDIO
ENA
ENB
DIAGA
DIAGB
HP-MUTE
P-MUTE
HP-SW
7 17 8 18
POWER AMP
IC301
6 INA
16 INB
D105
J900
J401
(+)
(–)
9
OUTA
19
OUTB
STREAM PROCESSOR
IC305
HADPHONE
AMP
IC401
43 DATA
64 XFSIIN
44 BCK
44 BCK
36 SCLATCH
41 INIT
41 INIT
39 NSPMUTE
40 PGMUTE
38 SCDT
45 LRCK
37 SCSHIFT
LATCH1
INIT
PGMUTE
SCDT
SHIFT
15
OUTL2+
10
OUTR1+
24
OUTL1+
1
OUTR2+
18
OUTL2–
7
OUTR1–
21
OUTL1–
4
OUTR2–
28
XFSOIN
74
FSOI
OVER LOAD
DETECT
Q109, 110
MUTING
CONTROL
Q902
POWER ON
MUTING
Q192
D180
D181
D192
32V
FRONT
L
ENA
ENB
DIAGA
DIAGB
7 17 8 18
POWER AMP
IC304
6 INA
4 AD1
3 AD2
3 AD2
60 FL-DATA
57 FL-CLK
61 FL-CS
56 FL-MUTE
57 FL-CLK
61 FL-CS
56 FL-MUTE
62 LED-CS
63 LED-CLR
63 LED-CLR
16 INB
D102
(+)
(–)
9
OUTA
19
OUTB
OVER LOAD
DETECT
Q103, 104
FRONT
R
ENA
ENB
DIAGA
DIAGB
7 17 8 18
POWER AMP
IC307
6 INA
16 INB
D103
(+)
(–)
9
OUTA
19
OUTB
STREAM PROCESSOR
IC308
SYSTEM CONTROLLER
IC901 (2/3)
FL DRIVER
IC802
43 DATA
64 XFSIIN
44 BCK
44 BCK
36 SCLATCH
41 INIT
41 INIT
39 NSPMUTE
40 PGMUTE
38 SCDT
45 LRCK
37 SCSHIFT
15
OUTL2+
10
OUTR1+
24
OUTL1+
64
HPSW
1
OUTR2+
28
XFSOIN
74
FSOI
63
DAT
62
CLK
61
CS
60
RST
58
OSC0
59
OSC1
OVER LOAD
DETECT
Q105, 106
ENA
ENB
DIAGA
DIAGB
7 17 8 18
POWER AMP
IC306
6 INA
16 INB
D106
(+)
(–)
9
OUTA
19
OUTB
OVER LOAD
DETECT
Q111, 112
ENA
ENB
DIAGA
DIAGB
7 17 8 18
POWER AMP
IC309
6 INA
16 INB
D104
(+)
(–)
9
OUTA
19
OUTB
STREAM PROCESSOR
IC310
43 DATA
64 XFSIIN
44 BCK
44 BCK
36 SCLATCH
41 INIT
41 INIT
39 NSPMUTE
40 PGMUTE
SCDT
45 LRCK
37
38
SCSHIFT
15
OUTL2+
10
OUTR1+
24
OUTL1+
1
OUTR2+
73
FSOCKO
74
FSOI
28
XFSOIN
77
XFSOUT
77
XFSOUT
OVER LOAD
DETECT
Q107, 108
REAR
L
ENA
ENB
DIAGA
DIAGB
7 17 8 18
POWER AMP
IC311
6 INA
16 INB
D101
(+)
(–)
9
OUTA
19
OUTB
OVER LOAD
DETECT
Q101, 102
43
DIP-RST
44
DIP-OCP
REAR
R
CENTER
SPEAKER
WOOFER
PHONES
D1
SCK
AU-MUTE
DAS-CS
BCKO
LRCKO
LRCKO
LATCH2
INIT
PGMUTE
INIT
PGMUTE
SCDT
SHIFT
LATCH1
LATCH2
LATCH3
SCDT
SHIFT
D2
SCK
BCKO
LRCKO
LRCKO
LATCH3
INIT
PGMUTE
SCDT
SHIFT
D3
SCK
BCKO
LRCKO
LRCKO
D4
SCK
BCKO
LRCKO
LRCKO
D/A CONVERTER
IC608
12
6
5
AOUTL+
11
AOUTL–
CSN
PDN
8
7
CDTI
CCLK
CCLK
DIGDI
DIGCLK
3 SDTI
1 MCLK
2 BICK
4 LRCK
2 BICK
4 LRCK
LOW-PASS
FILTER
IC610
C818, R840
10
AOUTR+
9
AOUTR–
MUTING
Q207, 208
FLUORESCENT
INDICATOR TUBE
FL801
MUTING CONTROL
Q900
MUTING
Q900, 901
SIRCS DETECT
Q906, 907
PROTECT DETECT
Q113, 114
BUFFER
IC300
J205 (2/4)
VIDEO 1
AUDIO OUT
L
R
P-MUTE
DIGDI, DIGCLK
T
(Page 33)
RSTAD
NSMUTE
S
(Page 33)
D1 – D4, SCK,
BCKO, LRCKO
BCKO, LRCKO
Q
(Page 33)
R
(Page 33)
DISC IN
X
(Page 36)
X300
49.152MHz
46
HP-MUTE
47
AU-MUTE
32
DAS-CS
HP-SW
HP-MUTE
AU-MUTE
DAS-CS
1
DAMP-DATA
2
DAMP-CLK
S1 – S35
29
CS1
30
CS2
31
CS3
26
DAMP-RST
27
DAMP-MUTING
5 – 39
G1 – G12
P1 – P10
40 – 51
14-17, 1-4, 6, 7
OSC
LED DRIVER
IC801
D801 – 805
10
DATA
11
CLK
12
STB
13
CLR
93 WAKE
I2CDATA,
I2CCLK, I2HLP
I2CCLK, I2HLP
W
(Page 35)
ZIVARESET
V
(Page 35)
92 SIRCS
DISC1 – DISC5
ROTARY
ENCODER
S800
KEY INPUT
DETECT
IC903, 904
DISC INSERT
DETECT
Q914
REMOTE CONTROL
RECEIVER
IC101
VOLUME
SCAN SELECT
82 – 84
KEY0 – KEY2
KEY0, KEY2
S801 – 805,
S811 – 825
S811 – 825
86 EN-B
S201
85 EN-A
100 I2HLP
4 CQ-RST
49 PROG SW
5 I2C-CLK
3 I2C-DATA
I2HLP
I2CCLK
I2CDATA
INTERLACE
SELECTABLE
38
39
X901
20MHz
X2
X1
FAN
Y
(Page 36)
HCD-C770/C990
35
35
7-4.
BLOCK DIAGRAM – VIDEO Section –
• SIGNAL PATH
: VIDEO
: Y
: CHROMA
: COMPONENT VIDEO
DVD SYSTEM PROCESSOR
IC206
125
VDAC_2
131
VDAC_0
WIDE SWITCH
Q210, 214
183 SDCLK
179 SDEN
182 SDERROR
XDCK, XSAK,
SDEF
SDEF
SDEF
XDCK
XSAK
178 SDREQ
XSRQ_ZIAV
SDDATA0 – SDDATA7
177-174, 171-168
AV DATA BUS
SD0 – SD7
D
(Page 32)
F
(Page 32)
L
(Page 32)
139 XIN
27M
I
(Page 32)
156 IEC958
SPDIF
202 RESET
ZIVARESET
V
(Page 34)
106 I2C_CTRL
I2HLP,
I2CDATA, I2CCLK
I2CDATA, I2CCLK
W
(Page 34)
O
(Page 33)
198 TDO
199 TDI
201 TCK
TDOSA, TDISA,
TCK, TMS, TRST
TCK, TMS, TRST
TCK
TDOSA
TDISA
200 TMS
197 TRST
TRST
TNS
N
(Page 33)
I2CCLK
I2CDATA
I2HLP
119
VDAC_4
128
190
VDAC_1
122
VDAC_3
J205 (3/4)
J206 (2/3)
VIDEO INPUT
SELECTOR
IC207
3 IN2
1 IN1
7
2 4
OUT
SW1
SW2
5 IN3
EEPROM
IC203
MECHANISM CONTROLLER
IC301 (2/2)
Q302
5 DI
6 DO
1 8
R/B
WC
3
CS
4 SK
VIDEO SELECTOR
IC209
1 1B
9 3B
3
12 7
OUT1
CT2
CT3
14 2B
6
OUT3
5
OUT2
2
CT1
VIDEO AMP, 75
Ω DRIVER
IC208
J205 (4/4)
J202
J206 (3/3)
14 CBIN
12 CYIN
4 VIN
22
3
CBOUT
MUTE1
16 CRIN
25
CYOUT
31
VOUT
2 CIN
6 YIN
33
COUT
28
YOUT
19
CROUT
AV1
AV0
AV2
15
MUTE2
VIDEO 1
VIDEO IN
VIDEO 2
VIDEO IN
1
2
3
4
75Ω DRIVER
IC206
FLIP-FLOP
IC803
SWITCHING
IC802
CE
WE
OE
56 29
1LE
2LE
ALE
BUS INTERFACE
IC215
16Mbit PROGRAMMABLE ROM
IC204
1D1 – 1D10, 2D1 – 2D6
55, 54, 52, 51,
49-47, 45-40, 38-36
57-60, 64-71, 75-78,
81-84, 88-95, 99-102
21, 24-27,
60-66
2,4,5,7,8,10,11,13,74,76,77,79,82,83,85,31,
33,34,36,37,39,40,42,45,47,48,50,51,53,54,56
1Q1 – 1Q10, 2Q1 – 2Q8
HA1 – HA3
HAD0 – HAD15
2, 3, 5, 6, 8-10, 12-17,
19-21, 23, 24
ADDRESS BUS
DATA & ADDRESS BUS
DATA & ADDRESS BUS
22, 19-14, 11-3
2, 207, 206
2D7 – 2D9
HAD0 – HAD15
HA1 – HA3
HAD0 – HAD15
HA1 – HA3
HAD0 – HAD15
HA1 –
HA3
HA4 –HA21
34, 33, 31
12
CE
WE
14
OE
1
A3 – A20
195
HCS0
WEN.UDS
27
HREAD
25
A0 – A2
11-9
DQ0 – DQ15
15-22, 24-31
2-8, 34-44
56
MCLK
CE
WE
OE
128Mbit SD-RAM
IC202
68
CLK
DQ0 – DQ31
A0 – A11
MA0 – MA12
MD0 – MD31
42-33, 45, 46
49
MCS0
20
CS
53
MWE
17
WE
51
MRAS
19
RAS
52
MCAS
18
CAS
62
MDQM0
16
DQM0
73
MDQM1
71
DQM1
86
MDQM2
28
DQM2
97
MDQM3
59
DQM3
161
I2C_DA
78
I2C SIO
160
I2C_CL
79
I2C-CLK
186
DRVTX
34
SOZIVA
187
DRVRX
33
SIZIVA
185
DRVCLK
35
SCKZIVA
184
HIRQ1
188
DRVRDY
36
DRVIRQ
37
DRVRDY
32
CS ZIVA
191
RST_SPC
38
RST
146
HIRQ2
158
WC_EEPROM
157
CS_EEPROM
48
BA0
22
BS0
47
BA1
23
BS1
107
VS/WIDE
XTAL
EXTAL
41
40
X301
20MHz
VIDEO 1
VIDEO OUT
COMPONENT
VIDEO OUT
S VIDEO
MONITOR OUT
VIDEO
Y
PB/CB
PR/CR
AV0 – AV2
P
(Page 33)
HCD-C770/C990
36
36
7-5.
BLOCK DIAGRAM – CHANGER, POWER SUPPLY Section –
3
POWER CONTROL
IC901
D
(AC IN)
S901 (2/2)
FAN
S901 (1/2)
TH901
POWER
TRANSFORMER
T901
M301
(FAN)
(FAN)
D919
D920
D933
D912
VCC
D906
12V
D905, 907
RECT
D902
D902
LINE FILTER
LF901, 902
ISOLATOR
PC901
OSC
Q912, 914
BUFFER
IC909
B+ SWITCH
Q001, 002
RESET SWITCH
Q901
VOLTAGE DETECT
IC904
AND GATE
IC905
4 VCC
1 OCP/SYNC
5 FB/OLP
RECT
D911
D911
POWER
SWITCHING
IC902
+20V
REGULATOR
Q905
POWER ON/OFF
CONTROL
Q901, 903
POWER ON/OFF
CONTROL
Q902, 906
FAN MOTOR
CONTROL
Q190, 191
+6.8V
REGULATOR
Q904
+12V
REGULATOR
IC908
+10V
REGULATOR
IC601
+5V
REGULATOR
IC600
VOLTAGE
DETECT
Q992
+6.5V
REGULATOR
IC903
M12V
D202, 203
U5V
S901 (1/2)
10V
D/A, A/D
+5V
LED DRIVE
Q911, 912
POWER ON/OFF
CONTROL
Q910, 911
B+ SWITCH
Q222, 223
TU 10V
+3.3V
REGULATOR
IC906
B+ SWITCH
Q990, 991
M
+6.5V
(AMP +6.5V)
+32V
(AMP +32V)
B+ SWITCH
Q003, 004
LEVEL SHIFT
Q731
+5V
REGULATOR
IC004
+3.3V
REGULATOR
IC005
D5V
DA05V,
VIDEO +5V
DA03V
+5V
REGULATOR
IC003
+2.6V
REGULATOR
IC605
DSP +2.6V
FL
FL1
VFL
+3.3V
REGULATOR
IC001
A3.3V
+5V
REGULATOR
IC002
A5V, RF+5V
+5V
REGULATOR
IC302
+3.3V
REGULATOR
IC303
STREAM PROCESSOR
+5V
STREAM PROCESSOR
+3.3V
TO FLUORESCENT
INDICATOR TUBE
DC-DC
CONVERTER
T801
D3.3V
+1.8V
REGULATOR
IC006
+2.5V
REGULATOR
IC702
+2.5V
+1.8V
+5.6V
REGULATOR
IC905
SYSTEM
CONTROLLER
+5V
D901
D900
D917
RESET SIGNAL
GENERATOR
IC907
U5V
RECT
D806 – 809
OSC
Q803, 804
D900
66
SP RELAY
50
TU-ON
34
RESET
72
PARA-DATA
67
PARA-DO2
90
STOP
91
POWER-SW
89
DVD-POWER
45
ST-POWER
11
P-PWM
S901 (2/2)
SYSTEM CONTROLLER
IC901 (3/3)
POWER
D812
STANDBY
P4
P5
P5
OPT-SEN
OUT1
FIN
OUT2
RIN
STOCKER MOTOR DRIVE
IC721
CHANGER CONTROLLER
(MOTOR, SWITCH)
IC902
CHANGER CONTROLLER
(ROTARY ENCODER)
IC906
M761
(STOCKER)
M
7
9
4
2
2
20
19
79
P2
P3
P3
P15 – P12
OUT1
FIN
OUT2
RIN
ROLLER MOTOR DRIVE
IC711
M781
(ROLLER)
M
7
9
4
2
2
22
21
P0
P1
P1
OUT1
FIN
OUT2
RIN
MODE MOTOR DRIVE
IC701
M771
(MODE)
M
7
9
4
2
2
23
24
DISC INSERT
DETECT SENSOR
IC751
S711 (DISC INSERT (8/12cm))
S713 (DISC IN (8/12cm))
P15
P13
P12
P9
P11
P10
P8
5
(ON: When disc insert)
(MODE)
7
S714 (DISC IN (8cm))
8
S715 (DISC OUT)
11
S716 (STOCKER IN/OUT)
9
S717 (DISC POSITION)
10
S718 (STOCKING)
S711
S713
S714
S715
S716
S717
S718
12
DI1
26
71
PARA-CLK
CLK
3
69
PARA-LT1
LAT
4
68
PARA-RST
RESET
2
RESET
2
25
DO2
25
DO2
DI2
16
14
CLKO
CLK
3
13
LATCHO
LAT
4
15
DO1
DI1
26
OFF: When disc out from
play position
OFF: The moment disc in/out
from stocker
In the midst disc is moving
between play position and stocker,
ON: disc is play position side,
OFF: disc is stocker side
between play position and stocker,
ON: disc is play position side,
OFF: disc is stocker side
OFF: In the midst disc is moving
between play position and
stocker
stocker
(ON: Play position)
(8cm disc only)
ON: Play position
ROTARY
ENCODER
S771
5 – 8
P11 – P8
(STOCKER POSITION)
ROTARY
ENCODER
S702
9 – 12
DISC IN
X
(Page 34)
Y
(Page 34)
Click on the first or last page to see other DAV-C770 / HCD-C770 / HCD-C990 service manuals if exist.