Sony CMT-DH30 / HCD-DH30 Service Manual ▷ View online
HCD-DH30
17
SECTION 5
ELECTRICAL CHECKS
TUNER SECTION
FM TUNE LEVEL CHECK
signal
generator
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
: 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 sig-
nals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
DVD SECTION
TEST DISC LIST
Be sure to use the DVD disc that matches the signal standards of
your region.
• CD
Be sure to use the DVD disc that matches the signal standards of
your region.
• CD
YEDS-18
(Part No. 3-702-101-01)
PATD-012
(Part No. 4-225-203-01)
• DVD SL (Single Layer)
HLX-503 (NTSC) (Part No. J-6090-069-A)
HLX-504 (NTSC) (Part No. J-6090-088-A)
HLX-506 (PAL)
(Part No. J-6090-077-A)
• DVD DL (Dual Layer)
HLX-501 (NTSC) (Part No. J-6090-071-A)
HLX-505 (NTSC) (Part No. J-6090-089-A)
HLX-507 (PAL)
(Part No. J-6090-078-A)
RFMON LEVEL CHECK
Connection :
Connection :
+
–
DMB15 board
CN105 pin (RFMON)
CN105 pin (GND)
CN105 pin (GND)
oscilloscope
Procedure :
1. Connect an oscilloscope to CN105 pin 6 (RFMON) and
1. Connect an oscilloscope to CN105 pin 6 (RFMON) and
CN105 pin 3 (GND) on the DMB15 board.
2. Press
the
[
?/1
]
button to turn on the system.
3. Insert the test disc (refer to “TEST DISC LIST”) and press the
[DVD
N
]
button to playback.
4. Confi rm that oscilloscope waveform is clear and check RF-
MON signal level is correct or not.
Note: A clear RFMON signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
TIME/DIV: 500 ns
level:
0.58 ± 1.23 Vp-p
(DVD-SL)
0.57 ± 1.1 Vp-p
(CD)
0.58 ± 1.23 Vp-p
(DVD-SL)
0.57 ± 1.1 Vp-p
(CD)
Connecting Location:
IC102
– DMB15 Board (Side A) –
IC201
CN105
1
6
VIDEO SECTION
VIDEO LEVEL CHECK
Purpose:
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
Purpose:
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
VIDEO board
VIDEO OUT jack (J502)
VIDEO OUT jack (J502)
75
Ω
Oscilloscope
set
Procedure:
1. Connect an oscilloscope to VIDOE OUT jack (J502) on the
1. Connect an oscilloscope to VIDOE OUT jack (J502) on the
VIDEO board.
2. Press
the
[
?/1
]
button to turn on the system.
3. Insert the test disc (refer to “TEST DISC LIST”) and press the
[DVD
N
]
button to playback.
4. Confi rm the video signal level is 1.00 ± 0.07 Vp-p.
1.00
± 0.07 Vp-p
(WHITE 100%)
HCD-DH30
18
MEMO
HCD-DH30
HCD-DH30
19
19
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM - DVD, VIDEO Section -
DQ0 – DQ7
AD0 – AD7
A-1, A0 – A20
IOA0 – IOA21
D/A CONVERTER
IC301
OPTICAL PICK-UP
BLOCK
(KHM-313CAB)
RF AMP, SERVO DSP,
MPEG DECODER
IC102
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC201
AUTOMATIC POWER
CONTROL (FOR CD)
Q102-1
DVDRFIP
6
MA
8
MB
9
MC
10
MD
11
RF
DVDA
2
SDTI1
14
DVDB
3
DVDC
4
DVDD
5
VOA/A
VOB/B
VOC/C
VOD/D
VOD/D
TNI
18
VOE/E+G
TPI
19
VOF/F+H
V2O
29
VC
LDO1
23
LD (780)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102-2
LDO2
22
LD (650)
FOO
42
CD ON
SWITCH
Q101-1
DVD ON
SWITCH
SWITCH
Q101-2
VR (780)
MSW
LIMSW
50
VR (650)
FCS+
MSW
MDI1
20
MDI2
21
PD
176
LIMIT
Q103
IOCS
CE
SD-RAM
IC104
X101
27MHz
B
36
FCS–
37
1
TRO
41
TRK+
35
TRK–
34
4
FMO
38
SL+
29
SL–
30
10
DMO
37
SP+
27
SP–
28
31
32
32
42
46
47
47
13
SPFG
47
45
ASDATA0 217
LOUT1+ 2
LOUT1– 1
LOUT1– 1
ROUT1+ 48
ROUT1– 47
ROUT1– 47
MCLK
10
ACLK 215
BICK
9
ABCK 214
LRCK
17
ALRCK 213
SDA
20
SDA 103
SPDIF 225
SCL
19
SCL 102
PDN
8
XRST 220
XT
ALI
229
VOICE
206
SMSCK
208
XT
ALO
228
TRG-SW
104
EEPROM
IC103
SDA
6
SCL
5
MIX AMP
IC3711
SDTI2
15
ASDATA1 218
SDTI3
16
ASDATA2 219
SDTI4
13
ASDATA4 222
LOUT4+ 38
LOUT4– 37
LOUT4– 37
ROUT4+ 33
32
ROUT4–
MIX AMP
IC3771
DVD-L
C
MUSIC L+R
81 – 84,
86 – 88, 91
29, 31, 33, 35,
38, 40, 42, 44
93, 78, 53 – 59, 75, 74,
72 – 67, 92, 60, 61, 76, 89
45, 25 – 18, 8 – 1,
48, 17, 16, 9, 10
DQ0 – DQ15
RD0 – RD15
A0 – A11
RA0 – RA11
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
125 – 123, 121, 120, 118, 117,
115, 135, 133 – 128, 126
147, 149 – 151, 166 – 164,
162, 160, 159, 146, 158
23 – 26,
29 – 34, 22, 35
77
26
IOOE
OE
79
28
IOWR
WE
66
11
BA0
BA0
143
20
BA1
BA1
145
21
RCLK
CLK
156
38
CKE
CKE
157
37
DQM0
LDQM
113
15
DQM1
UDQM
137
39
RAS
/RAS
140
18
CAS
/CAS
139
17
RCS
/CS
142
19
RW
E
/W
E
138
WIDE
49
16
• SIGNAL PATH
: CD PLAY
: DVD PLAY
: AUDIO
: VIDEO
: Y
: CHROMA
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SLED
MOTOR DRIVE
SPINDLE
MOTOR DRIVE
FWD
174
25
24
24
16
REV
178
17
TROPENPWM
39
15
LOADING
MOTOR DRIVE
REGULATOR
MUTE123
MUTE12
211
19
MUTE
MUTE34
210
20
TSD_M
TSD-M
170
22
IOPMON
40
40
8
MUTE5 21
BUFFER
BUFFER
RF+3.3V
AU+5V
R-CH
REGO2
REGO1
REGO1
I-MTK DI
IFSDO
45
98
I-MTK-XIFCS
IXFCS
27
100
O-MTK MICR
MIC
29
205
I-MTK KRMOD
KRMOD
28
207
O-MTK DA
TA
IFSDI
44
101
I-MTK CLK
IFCK
46
99
O-MTK-IFBSY
IFBSY
31
105
O-MTK RST
PRST
26
O-VID MUTE
9
110
SYSTEM CONTROLLER
IC101 (1/4)
CENTER VOLTAGE
GENERATOR
Q3801
XVOICE
SCORE
196
YUV2
194
YUV1
198
YUV3
202
YUV5
200
YUV4
203
YUV6
VIDEO AMP, 75
Ω DRIVER
IC501
4 CVBS IN
2 C IN
6 Y IN
10 CY IN
12 CB IN
14 CR IN
3
MUTE1
13
MUTE2
25
S1
DSEL
48
9
I/P
I-MTK SL
IN
32
: DIGITAL OUT
: COMPONENT VIDEO
• R-ch is omitted due to same as L-ch.
VIDEO
OUT
J502
DIGITAL OUT
OPTICAL
S VIDEO
OUT
J501
J503
COMPONENT
VIDEO OUT
Y
P
B
/C
B
P
R
/C
R
23
CVBS OUT
26
C OUT
21
Y OUT
20
CY OUT
18
CB OUT
16
CR OUT
27
S-DC OUT
C
Y
FLASH ROM
IC101
A
XVOICE, SCORE
M001
(LOADING)
M
S103
(TRIGGER)
CKSW
179
S102
(CHUCKING)
OCSW
177
S101
(DISC IN/OUT)
DIGITAL OPTICAL
TRANSCEIVER
IC208
+
(EXCEPT AEP)
(EXCEPT AEP)
(Page 21)
(Page 20)
(Page 21)
HCD-DH30
HCD-DH30
20
20
6-2. BLOCK DIAGRAM - TUNER, USB Section -
: AUDIO
SIGNAL PATH
: AUDIO IN
: TUNER (FM/AM)
: USB
: MIC
AUDIO IN
R-CH
J702
DVD-L
B
7
8
5
6
22
DA
TA
21
CLK
O-FUNC DA
TA
17
O-FUNC CLK
16
O-LINE MUTE
33
O-HP
MUTE
22
I-HP
DET
23
I-AUDIO DET
24
K
L-CH
LOUT
INPUT SELECTOR, ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC401
SYSTEM CONTROLLER
IC101 (2/4)
R-ch is omitted due to same as L-ch.
PHONES
R-CH
J703
INL4
4
INL1
VOLOUTL
VOLINL
INL2
INL3
9
MUTING
Q303
R-CH
27
MUTING
CONTROL SWITCH
Q305, 306
MUTING
Q307
R-CH
MUTING
Q315
R-CH
MUTING
CONTROL SWITCH
Q309, 310
HEADPHONE
AMP
IC303
MIC
J
+
LB
I/O0 – I/O15
D0 – D15
S-RAM
IC921
39
UB 40
OE 41
WE 17
CE 6
79 D+
80 D–
77 USBOC
USB CONTROLLER
IC901
65 AIN (PI4)
MP3 PROCESSOR
IC951
76 O-XM TXD/O-USB TXD
CN902
(USB)
3
2
1
D+
66 BCKi (PI5)
67 LRCKi (PI6)
51 PIO3
67 LRCKi (PI6)
51 PIO3
40 BUS2 (SO)
39 BUS1
38 BUS0
41 BUS3 (SI)
42 BUCK (CLK)
43 XCCE
48 PIO0
37 XRST
42 BUCK (CLK)
43 XCCE
48 PIO0
37 XRST
46 AoUT3 (PO4)
D–
78 USBPON
70 CS2
64 RD
65 WR
66 SRLLB
67 SRLUB
64 RD
65 WR
66 SRLLB
67 SRLUB
VBUS
VBUS POWER
ON/OFF SWITCH
IC915
5
1
4
OUT
EN
3
FLG
IN
VBUS
+5V
93
DATA
30
LO
27
RO
92
BCK
71
LRCK
94
GATE
97
ST-REQ
55
BUS0
56
BUS1
88
RXD1
77 I-XM RXD/I-USB RXD
79 I-USB RXD
87
TXD1
60 O-USB SO
2
DI
61 I-USB SI
84
DO
8 O-USB RST
1
/RESET
57
BUS2
58
BUS3
59
/BUCK
60
/CCE
61
/RST
96
REQ
7 – 10, 13 – 16,
29 – 32, 35 – 38
18 – 25, 28 – 35
A0 –
A15
A1 –
A16
44 – 42, 27 – 24,
21 – 18, 5 – 1
37 – 43, 46 – 54
73
X2
75
X1
XO
XI
X901
9MHz
24
23
X951
16.9344MHz
TUNER (FM/AM)
AM
FM ANT
AM ANT
TUNER-L
TUNER-R
PLL DO/STEREO
R-CH
R-CH
PLL DIN
PLL CLK
PLL CE
FM75
Ω
COAXIAL
ANTENNA
7 I-ST DI
87 O-ST DATA
88 O-ST CLK
85 O-ST CE
88 O-ST CLK
85 O-ST CE
RDS DATA
RDS CLK
6 I-RDS DI
5 I-RDS CLK
5 I-RDS CLK
(AEP)
(EXCEPT AEP)
(Page 21)
(Page 19)
(Page 21)
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