Sony CMT-DH50R / CMT-DH70SWR / HCD-DH50R / HCD-DH70SWR Service Manual ▷ View online
HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
25
25
SECTION 4
ELECTRICAL CHECK
FM TUNE LEVEL CHECK
signal
generator
set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C signals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
“TUNED” is displayed.
HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
26
26
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - DVD SERVO Section -
OPTICAL
TRANSMITTER
IC651
DIGITAL OUT
OPTICAL
DOUT
9
ADIN 206
ASDATA0 226
AUTOMATIC POWER
CONTROL (FOR CD)
Q2003 – 1
RF
OPTICAL PICK-UP
BLOCK
(KHM-313CAB)
VOA/A
VOB/B
VOB/B
VOC/C
VOD/D
VOD/D
VOF/F+H
VOE/E+G
VC
LIMIT
PD
LD (780)
VR (650)
VR (780)
MSW
VCC
LD (650)
FCS+
FCS-
TRK+
TRK-
REGO1
REGO2
SP-
SP+
SL-
SL+
DVD ON
SWITCH
SWITCH
Q2001 – 2
CD ON
SWITCH
Q2001 – 1
Q2002
DVDRF IP
10
DVDA
6
DVDB
7
DVDC
8
DVDD
9
MA
11
MDI2
20
MB
12
MC
13
MD
14
LIMITSW
53
V2O
28
MDI1
19
LDO1
22
42
41
41
AUTOMATIC POWER
CONTROL (FOR DVD)
Q2003 – 2
A/D CONVERTER
IC1003
LDO2
21
MSW
54
IOPMON
39
FOO
41
TRO
40
TPI
18
TNI
17
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED/LOADING MOTOR DRIVE
IC3001
RF AMP, SERVO DSP,
MPEG DECODER,
AUDIO PROCESSOR
IC2006 (1/2)
BUFFER
32
31
BUFFER
36
37
37
1
FOCUS COIL
DRIVE
40
30
29
29
10
6
7
7
SLED MOTOR
DRIVE
27
28
28
13
SPINDLE MOTOR
DRIVE
35
34
34
4
TRACKING COIL
DRIVE
TROPENPWM
38
FMO
37
DMO
36
OP_INP
35
FWD
94
REV
95
46
47
47
BUFFER
LOADING
MOTOR DRIVE
M001
(LOADING)
45
15
25
24
24
16
17
17
MUTE123
157
MUTE
158
19
20
20
TSD_M
MUTE123
21
PS
MUTE4
TSD_M
TSD_M
130
22
V REFO
VREF
29
RFRAPC
252
43
M
M
I-MTK_KRMOD
28
KMOD 213
SYSTEM CONTROLLER
IC401 (1/3)
S001
(DISC IN/OUT)
S002
(CHUCKING)
O-MTK_MICR
29
MIC 208
I-MTK-DATA
45
IFSDO 97
O-MTK-DATA
44
IFSDI 100
I-MTK-CLK
46
IFCK 98
I-MTK_XIFCS
27
xIFCS 99
I-COM_OPEN
32
OCSW 104
CKSW 103
O-MTK_IFBSY
31
xIFBSY 110
BCK
8
ABCK 204
VINL 13
VINR
R-CH
14
LRCK
7
ALRCK 205
SCKI
6
ACLK 203
SPDIF 215
XVOICE 214
SDTI
3
D/A CONVERTER
IC1002
BICK
2
L OUT 11
AC/DC
CONVERTER
IC7003 (2/2)
AC/DC
CONVERTER
IC7003 (1/2)
R OUT
R-CH
A +9V
L_IN
LOUT
10
LRCK
4
MCLK
1
RSTN
5
DAC_XRST 221
B
A
MIC_SCORE
C
: AUDIO
: CD/DVD PLAY
COMPARATOR
IC7001
SCORE 198
Lt 231
Rt 230
COMPARATOR
IC7002
VID_MUTE2 14
VID_MUTE1 13
I-CEC_RX_IN 40
O-CEC_TX_OUT 69
SDA
SCL
SDA,
SCL
SCL
E
V_MUTE2
V_MUTE1
V_MUTE1,
V_MUTE2
V_MUTE2
D
(DH50R: RU, SP, TW, KR, TH/DH70SWR: RU)
: Singapore model
Abbreviation
SP
: Thai model
TH
: Taiwan model
TW
: Korean model
KR
: Russian model
RU
SIGNAL PATH
R-ch is omitted due to same as L-ch.
(Page 28)
(Page 28)
(Page 28)
(Page
27)
(Page
27)
Ver. 1.1
HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
27
27
5-2. BLOCK DIAGRAM - VIDEO Section -
RF AMP, SERVO DSP,
MPEG DECODER,
AUDIO PROCESSOR
IC2006 (2/2)
140
, 141
, 143
, 144
,
155
–
150
, 139
, 149
23 – 26,
29 – 34, 22, 35
121
–
119
,
117
–
113
, 129
–
122
2, 4, 5, 7, 8,10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
BA0
137
BA0
DQ0 – DQ15
SD-RAM
IC2009
VIDEO AMP, 75
Ω DRIVER
IC5001
A0 – A9,
A10/AP, A11
RD0 – RD15
RA0 – RA11
20
BA1
138
BA1 21
MUTE2 14
MUTE1 5
CV SAG 29
CV OUT 30
CVBS IN
6
CVBS 187
DRCLK
146
CLK 38
_RCS
136
CS 19
_RWE
133
WE 16
_RAS
135
RAS 18
_CAS
134
CAS 17
DQM0
111
LDQM 15
DQM1
132
UDQM 39
CKE
147
CLKE 37
92, 77, 56 – 62, 74 – 67,
91, 63, 64, 75, 87
45, 25 – 18, 8 – 1,
48, 17, 16, 9, 10
79, 80,
82 – 86, 89
29, 31, 33, 35,
38, 40, 42, 44
XROMCS
76
CE
DQ0 – DQ7
FLASH ROM
IC2001
DQ15/A1,
A0 – A20
A0 – A20
HD0 – HD7
HA0 – HA21
26
XRD
78
OE 28
XWR
66
WE 11
SDA
102
SDA
EEPROM
IC2005
5
SCL
101
SCL 6
EEWP
112
WE 7
xSYSRST
108
RESET 12
Cy IN
11
Y/G 185
Cb IN
13
B/Cb/Pb 183
Cr IN
15
R/Cr/Pr 182
VBUS_OE 196
VBUS_OC
USB_SW
USB_OCD
197
Cy SAG 23
Cy OUT 24
Cy SAG 20
Cy OUT 21
Cy SAG 17
Cy OUT 18
CN2006
J652
CN351
(USB)
J651
COMPONENT
VIDEO OUT
VIDEO
VIDEO OUT
HDMI OUT
Y
Pb/Cb
Pr/Cr
USB_DP 44
USB_DM
D+
D-
D-
VBUS
USB +5V
1
45
TX2P
TMDS DATA2+
180
3
TX2N
TMDS DATA2-
179
4
TX1P
TMDS DATA1+
177
6
TX1N
TMDS DATA1-
176
7
TX0P
TMDS DATA0+
174
9
TX0N
TMDS DATA0-
173
10
TXCP
TMDS CLOCK+
171
12
TXCN
TMDS CLOCK-
170
19
HTPLG
HPD
162
13 CEC
18 +5V POWER
HDMI +5V
LEVEL SHIFT
IC2007
16
DDC_DA 159
LEVEL SHIFT
Q2004
15
DDC_CLK
SDA
SCL
SCL
161
CEC INTERFACE
Q2006 – Q2009
X2001
27MHz
239
238
XTALI
XTALO
V_MUTE2
V_MUTE1
V_MUTE1,
V_MUTE2
V_MUTE2
D
F
SDA
SCL
SCL
SDA,
SCL
SCL
E
XRST
G
: VIDEO
: USB
: AUDIO
3
2
2
1
SIGNAL PATH
R-ch is omitted due to same as L-ch.
(Page 29)
(Page 29)
(Page 26)
(Page 26)
HCD-DH50R/DH70SWR
HCD-DH50R/DH70SWR
28
28
5-3. BLOCK DIAGRAM - AUDIO Section -
O-ST_CE
I-ST_TUNED
MIC_ECHO CS
MIC DETECT
TUNED
DO/STEREO
O-MIC_ECHO_CS
TUNER (FM/AM)
J651 (1/2)
VIDEO
AUDIO IN
MIC AMP
IC252
Q263
MIX AMP
IC501
DIGITAL ECHO
IC251
INPUT SELECTOR,
ELECTRICAL VOLUME
IC500
J251
AIN_L
1
DVD/USB_L
3
MC1P
R-CH
LOUT
15
L-OUT
SEL_L 10
OUT_L 23
SB_L 22
SR 21
POOUT 29
MCO 21
SCL 6
CS1 5
SDA
MIC ECHO CLK
MIC EHCO DATA
L_IN
MIC SCORE
7
A/D CONVERTER
IC701
STREAM PROCESSOR
IC705
SYSTEM CONTROLLER
IC401 (2/3)
DIGITAL POWER AMP
IC707
DIGITAL POWER AMP
IC708
IN-L
13
D-OUT 9
BCK 8
LRCK 7
IN-R
14
DATA
31
BCK
30
LRCK
29
OUTL1 11
BP
2
OUTL2 9
OUT_B 30
OUT_B 29
OUT_A 25
OUT_A 26
OUT_A 26
AP
17
O-SM_DATA 38
SCDT
21
O-SM_SHIFT 39
SCSHIFT
22
O-SM_LATCH 41
SCLATCH
23
O-SM_PG_MUTE 34
PGMUTE
20
O-SM_SOFT_MUTE 35
SOFTMUTE
19
O-SM_NSP_MUTE 48
NSPMUTE
18
O-SM_INIT 49
O-SM RST 36
I-SM SD 37
O-SUBWOOFER_MUTE 43
O-SUBWOOFER_ON 76
INIT
27
OUTR1 6
BP
2
OUTR2 4
AP
17
XFSIIN
36
XFSOIN
48
SCK-I
6
MIC_ECHO CS
MIC ECHO CLK
MIC DETECT
MIC EHCO DATA
R-CH
R-CH
R-CH
SDA
26
SCL
25
R-CH
R-CH
TV_L
7
TUNER_L
5
VOL_L
11
MIC
J252
AUDIO IN
L
R
TB666
L
R
R-CH
J253
PHONES
R-OUT
DI
CLK
CE
TUNED
DO/STEREO
RDS DATA
RDS CLK
DI
CLK
CE
RDS DATA
RDS CLK
(DH50R: AEP/DH70SWR: AEP)
(DH50R: AEP/DH70SWR: AEP)
(DH50R: RU, SP, TW, KR, TH/DH70SWR: RU)
(DH70SWR)
A
C
B
HEADPHONE
AMP
IC253
MUTING
CONTROL
Q255, Q256
MUTING
Q251
MUTING
Q259
CLOCK SHIFT
IC703
CLOCK BUFFER
IC709
R-CH
OVER LOAD
DETECT
Q702, Q703
MUTING
CONTROL
Q668, Q669
SUBWOOFER
POWER ON/OFF
SWITCH
Q540, Q580
MUTING
Q666, Q667
Q543
MUTING
Q573
R-CH
R-CH
MUTING
CONTROL
Q571, Q572
BASS CUT
FILTER
Q541
X703
49.152MHz
L.P.F.
L.P.F.
OVER LOAD
DETECT
Q752, Q753
PROTECT
DETECT
Q701
LOW-PASS
FILTER
IC666
OUT_B 30
OUT_B 29
OUT_A 25
OUT_A 26
OUT_A 26
L.P.F.
L.P.F.
FAN +11V
/RST
4
/SD
13
/RST
4
/SD
13
J666
SUBWOOFER
SPEAKER
O-ST_DATA
87
O-ST_CLK
88 85 82
I-ST_DI
18
O-MIC_ECHO_DATA
4
O-MIC_ECHO_CLK
3
O-FUNC_DATA
17
O-FUNC_CLK
16
O-HP_MUTE
22
I-HP_DET
HEADPHONE_MUTE
HEADPHONE_DETECT
HEADPHONE_MUTE
HEADPHONE_DETECT
HEADPHONE_DETECT
62
O-LOWCUT
24
O-LINE MUTE
21
23
I-MIC_DET
64
I-RDS_DI
6
I-RDS_CLK
5
DI
CLK
CE
TUNED
DO/STEREO
RDS DATA
RDS CLK
: AUDIO
: TUNER
: AUDIO IN
: MIC
(DH70SWR)
AM
FM ANT
AM ANT
FM75
:
COAXIAL
ANTENNA
: Singapore model
Abbreviation
SP
: Thai model
TH
: Taiwan model
TW
: Korean model
KR
: Russian model
RU
SIGNAL PATH
R-ch is omitted due to same as L-ch.
(Page 26)
(Page 26)
(Page 26)
Ver. 1.1
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