Sony DAV-DX155 / DAV-DX255 / HCD-DX155 / HCD-DX255 Service Manual ▷ View online
29
29
HCD-DX155/DX255
HCD-DX155/DX255
• Circuit Boards Location
SECTION 6
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
•
A
: B+ Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
no mark : DVD STOP
tolerances.
no mark : DVD STOP
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω
).
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
J
: CD PLAY
c
: DVD PLAY
I
: SACD PLAY
d
: TUNER
L
: VIDEO
E
: Y
a
: CHROMA
r
: COMPONENT VIDEO
q
: R, G, B
f
: AUDIO IN
• Abbreviation
AUS
: Australian model
CND
: Canadian model
E3
: 240V AC area in E model
MX
: Mexican model
SP
: Singapore model
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE B) the parts face are indicated.
Pattern face side: Parts on the pattern face side seen from
(SIDE A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE B) the parts face are indicated.
✩
New part of EEP ROM (IC1103) on the MAIN board
cannot be used. Therefore, if the mounted MAIN board
(A-1151-985-A, etc.) is replaced, exchange new EEP
ROM (IC1103) with that used before the replacement.
cannot be used. Therefore, if the mounted MAIN board
(A-1151-985-A, etc.) is replaced, exchange new EEP
ROM (IC1103) with that used before the replacement.
C
B
These are omitted.
E
Q
C E
B
These are omitted
Note:
The components identi-
fied by mark
fied by mark
0
or dot-
ted line with mark
0
are
critical for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque
par une marque
0
sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
FL board
JACK board
LED board
SW board
I/O board
SPEAKER board
MAIN board
HEATSINK (A) board
HEATSINK (B) board
POWER board
TUNER UNIT
30
30
HCD-DX155/DX255
HCD-DX155/DX255
6-1. BLOCK DIAGRAM – RF SECTION –
: CD PLAY
: DVD PLAY
: SACD PLAY
• Signal Path
DETECTOR
6
2
3
4
5
11
10
19
18
252
253
DVDRFIP
DVDA
DVDB
DVDC
DVDD
TPI
TNI
MD
MC
MC
29 V2O
D
C
LD01
MD12
LD02
MSW
IOP
MD11
OSP
OSN
IC1101 (1/3)
CD/DVD RF AMP,
FOCUS/TRACKING ERROR AMP
DVD SYSTEM PROCESSOR
DIGITAL SERVO PROCESSOR
OPTICAL PICK-UP
BLOCK
(KHM-310CAB)
2AXIS
DEVICE
FOCUS/
FOCUS/
TRACKING
COIL
23
20
LI M SW
176
22
21
36
48
43
15
37
1
Q1102 (2/2)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q1101, Q1103
VOLUME CONTROL
Q1102 (1/2)
AUTOMATIC POWER
CONTROL (FOR CD)
LASER
DIODE
(FOR CD)
LASER
DIODE
(FOR DVD)
FOCUS COIL
DRIVE
42
41
BUFFER
35
3
34
4
TRACKING COIL
DRIVE
32
31
38
42
39
37
41
30
47
SLED MOTOR
DRIVE
IC1201
FOCUS/TRACKING COIL DRIVER,
SPINDLE, SLED MOTOR DRIVER
27
28
SPINDLE MOTOR
DRIVE
M
M
(SPINDLE MOTOR)
47
46
FMO
TROPENPWN
FOO
DND
TRO
V REFO
SPFG
40 IOPMON
FOO
RF
A
B
C
D
F
E
VC
LIMIT
CD LD
PD
VR650
VR780
MSW
DVD LD
FCS+
FCS–
TRK+
+3.6V
+2.5V
TRK–
SP+
SP–
SL+
SL–
D
C
B
A
VREFO
9 NB
B
8 NA
A
30
29
SLED MOTOR
DRIVE
M
M
(SLED MOTOR)
48
BUFFER
19
20
22
21
40
45
IC501 (1/4)
SYSTEM
CONTROLLER
99
IFSCK
DVD_SCO
33
100
XIFCS
DVD_XIFCS
37
110
PRST
MTK_RST
SYSRST
SCO
SCD
SID
98
IFSDO
DVD_SOD
32
101
IFSDI
CDM_OPEN_SW
105
IFBSY
DVD_XIFBUSY
34
DVD_SID
31
TRO
FMO
FOO
DMO
TRO
10
13
16
17
FMO
DMO
178 REV
174 FWD
211 MUTE123
210 MUTE
170 TSDM
210 MUTE
170 TSDM
M
M
M
M
28
V2REFO
106
RXD
107
TXD
5
6
2
1
RFMON
CN1105
TO DIAG JIG
V2REFO
RXD
TXD
REG02
REG01
9
12
85
89
89
86
87
87
88
4
3
3
2
26
13
14
15
25
25
24
23
23
20
19
11
10
6
9
16
26
3
4
4
2
25
5
6
7
8
7
8
9
10
11
12
IO_CE
IO_CLK
IO_RESET
IO_DI
IO_DO
BI2
BI1
BI1
CLK
LATCH
RESETB
BO2
IC505
DAC
S781
ROTARY ENCODER
ROTARY ENCODER
S771
( MD )
LATCH
CLK
CLK
RESET B
BI1
LATCH 0
CLK 0
CLK 0
BO1
BO2
BO2
IC504
DAC
7
9
9
4
2
FIN
RIN
OUT1
OUT2
OUT2
7
9
9
4
2
FIN
RIN
OUT1
OUT2
OUT2
IC701
LD/ST MOTOR
LD/ST MOTOR DRIVE
BU U/D MOTOR DRIVE
BU U/D MOTOR
IC711
M762
M761
LD/ST MTR NEG
LD/ST MTR POS
BU U/D MTR POS
BU U/D MTR NEG
BU U/D MTR NEG
Q751
BUFFER
SW2
SW3
IN
OPEN
S761( SUB TRAY OUT )
S731
SUB TRAY IN
S721
MAIN TRAY
IN/OUT
IC751
D SENSOR
D+3.3V
ST U/D ENCODER
38
27
P0
P1
P4
P5
P9
P10
P11
P14
P15
P14
P13
P13
P12
P11
P10
P9
P8
P8
31
31
HCD-DX155/DX255
HCD-DX155/DX255
6-2. BLOCK DIAGRAM – AMP SECTION –
: AUDIO
• Signal Path
: AUDIO IN
: TUNER
J401
AUDIO IN
IC401
AMP
+
–
6
5
7
+
–
3
2
1
Q470-473,476
MO/ST DETECT
IC402
AMP
+
–
5
6
7
GAIN CONT
ACAL
DC CONT
MO/ST DET
PLUG DET1
Q474,475
GAIN CONT
MUTING
Q360-362
IC352
AUDIO INPUT SELECTOR
4 Y3
2 Y2
5 Y1
13
X
3
Y
1 Y0
A
A SEL1
A SEL0
10
B
9
11 X3
15 X2
L-CH
R-CH
14 X1
12 X0
Q353
Q354
IC353
AMP
+
–
3
2
1
+
–
5
6
7
IC2200
A/D CONVERTER
1 LIN
LIN
12
BOUT
10
LRCK
2 RIN
RIN
11
BCK
15
SCKI
IC1101 (2/3)
DVD SYSTEM PROCESSOR
209 SPDATA
217
SDATA0
AMP D1
AMP MCKO
AMP BCKO
AMP LRCKO
AMP D2
AMP D3
218
SDATA1
224 DWIDE
219
SDATA2
213
ALRCK
214
ABCK
215
ACLK
IC501 (2/4)
SYSTEM CONTROL
82 A-SEL0
83 A-SEL1
69 TUNED
TUNED
70 ST_CLK
PLL CK
PLL DO
PLL CE
PLL DI
71 ST_DO
72 ST_CE
73 ST_DI
91 ACAL MIC LEVEL
26 MIC GAIN
28 DC CONT
90 MONO/ST DET
100 MIC/A CALSW
ACAL
GAIN CONT
MO/ST DET
PLUG DET1
80 V_SEL0
81 V_SEL1
V_SEL0
V_SEL1
J200
TV/VCR
TUNER
UNIT
L-CH
R-CH
L
L
R
R
TUNED
PLL CK
PLL CK
PLL DO
PLL CE
PLL DI
A
AUDIO
SECTION
(Page 32)
B
VIDEO
SECTION
(Page 33)
D433
D470
DC CONT
32
32
HCD-DX155/DX255
HCD-DX155/DX255
6-3. BLOCK DIAGRAM – AUDIO SECTION –
: AUDIO
• Signal Path
IC3250
S-MASTER DIGITAL AMP
TB301
(+)
(–)
IC3030
S-MASTER PROCESSOR
31 DATA
36 XFSIIN
30 BCK
30 BCK
23 SCLATCH
27 INIT
18 NSPMUTE
27 INIT
18 NSPMUTE
SOFTMUTE
21 SCDT
29 LRCK
22 SCSHIFT
25 FLAGL OVF
24 OVF FLAGR
24 OVF FLAGR
LAT3
INIT
NSPMUTE
SCDT
OVF2
SHIFT
9
OUTL2
6
OUTR1
11
OUTL1
4
OUTR2
38
FS0I
Q3401,3402
DC
DETECT
WOOFER
24 FL DATA
21 FL CLK
25 FL CS/STB
21 FL CLK
25 FL CS/STB
VFL
(+)
(–)
Q3301,3302
DC
DETECT
CENTER
(+)
(–)
IC3010
S-MASTER PROCESSOR
IC501 (3/4)
SYSTEM CONTROLLER
IC802
FL DRIVER
31 DATA
36 XFSIIN
30 BCK
30 BCK
23 SCLATCH
27 INIT
18 NSPMUTE
27 INIT
18 NSPMUTE
21 SCDT
29 LRCK
22 SCSHIFT
9
OUTL2
6
OUTR1
11
OUTL1
4
OUTR2
38
FS0I
7
DIN
8
CLK
9
42
STB
30
F1
F2
F2
Q3101,3102
DC
DETECT
(+)
(–)
Q3151,3152
DC
DETECT
(+)
(–)
IC3020
S-MASTER PROCESSOR
31 DATA
20 PGMUTE
36 XFSIIN
30 BCK
30 BCK
23 SCLATCH
27 INIT
18
27 INIT
18
19
NSPMUTE
SOFTMUTE
SOFTMUTE
SCDT
29 LRCK
22
21
SCSHIFT
4
OUTR2
11
OUTL1
6
OUTR1
9
OUTL2
38
FS0I
48
XFS0IN
48
XFS0IN
48
XFS0IN
Q3201,3202
DC
DETECT
FRONT
R
SD
4
6 PWMBP
14
5
PWMAP
RESET
(+)
(–)
OUTA
OUTB
IC3200
S-MASTER DIGITAL AMP
SD
4
4
14 PWMB
6
5
PWMA
RESET
OUTA
OUTB
IC3150
S-MASTER DIGITAL AMP
SD
6 PWMA
14
5
PWMB
RESET
OUTB
OUTA
4
IC3100
S-MASTER DIGITAL AMP
SD
14 PWMB
6
5
PWMA
RESET
OUTB
OUTA
4
IC3300
S-MASTER DIGITAL AMP
SD
6 PWMA
14
5
PWMB
RESET
OUTA
OUTB
4
IC3400
S-MASTER DIGITAL AMP
IC3500
S-MASTER DIGITAL AMP
IC3001
COMPARATOR
SD
14
PWMA
6
5
PWMB
RESET
OUTB
DX255
25
28
OUTA
Q3251,3252
DC
DETECT
43
DRIVE OCP
FRONT
L
SUR R
SPEAKER
J402
SUR L
AMP_D3
WF
WF
C
C
MCK0
BCK0
LRCK0
LRCK0
LAT1
INIT
NSPMUTE
SOFTMUTE
INIT
SOFTMUTE
SCDT
SHIFT
LAT1
LAT2
LAT3
SCDT
SHIFT
AMP_D1
MCK0
BCK0
LRCK0
LRCK0
LAT2
INIT
NSPMUTE
SCDT
SHIFT
AMP_D2
MCK0
BCK0
LRCK0
LRCK0
24 OVF FLAGR
FLAGL OVF
25
19 SOFTMUTE
19
20
FL801
FLUORESCENT
INDICATOR TUBE
Q3551
PROTECT DETECT
AMP_D1-D3
AMP_BCK0,LRCK0,MCK0
AMP_BCK0,LRCK0,MCK0
A
AMP
SECTION
(Page 31)
1
DAMP SCDT
2
DAMP SHIFT
SG1 – SG16
HPMUTE
PLUG_DET2
53
HP_MUTE
MST
52
HP_SW
47
DAMP LAT1
48
DAMP LAT2
49
DAMP LAT3
50
DAMP INIT
51
DAMP SOFT MUTE
42
DRIVE RST
RESET
DIAG
OVF
44
OVERFLOW1
OVF2
45
OVERFLOW2
14 – 29
GR2 – GR12
GR1
G1
41 – 31
74 KEY INT
4 SIRCS–IN
IC801
REMOTE CONTROL
RECEIVER
97,95,94
KEY0 – KEY2
KEY0
S801 – S813
(FUNCTION KEY)
4
10 ENA
S800
VOLUME
ENCODER
11 ENB
15
13
X502
5MHz
IC3003
SELECTER
Xin
Xout
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
LPF
Q802
FL DRIVER
+3.3V
FAN
FAN
DRIVE
Q3000-3002
+12V
SOFTMUTE
SOFTMUTE
FR
HP
HP
HP
HP
FR
FL
FL
SR
SR
SL
SL
VOLUME
25 FLAGL OVF
24 OVF FLAGR
24 OVF FLAGR
OVF
TB302
E3.3V
19
DIPCSFLAG
AMP_D0-D3
D3071-D3073
2
1
5
6
68
20 PGMUTE
41
HPOUTR1
43
HPOUTL2
39
HPOUTR2
45
HPOUTL1
PGMUTE
14
XFS0OUT
14
XFS0OUT
37
FSOCKOUT
IC3051
OSC
X450
49.152MHz
30
25
28
30
30
25
28
30
30
25
28
30
30
25
28
30
30
4
SD
14 PWMB
6
5
PWMA
RESET
OUTB
OUTA
25
28
30
30
25
28
30
30
+
–
3
2
1
+
–
5
6
7
Q450,451
Q460,461
Q460,461
MUTE
Q3081
MUTE SW
HPMUTE
PLUG DET2
L
R
PHONES
27
3
6
5
15
-
DATA
CLK
LCK
Q0
|
Q9
22 LED LAT
IC803
LED DRIVER
Q811-Q820
LED SWITCH
D813-D815
( INDICATOR )
27
27
27
27
27
27
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