Sony CMT-HX30R / HCD-HX30R Service Manual ▷ View online
HCD-HX30R
13
SECTION 5
ELECTRICAL CHECKS
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 sig-
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.
“TUNED” is displayed.
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MW impedance.
4. Clean the object lens by an applicator with neutral detergent when the
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MW impedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
+
–
–
CD board
TP121 (RFI)
TP124 (VC)
oscilloscope
(DC range)
Procedure:
1. Connect oscilloscope to TP121 (RFI) and TP124 (VC) on the
1. Connect oscilloscope to TP121 (RFI) and TP124 (VC) on the
CD board.
2. Press the [
?
/
1
] button to turn the power on, and press [
Z
] the
button to open the disc tray.
3. Set disc (YEDS-18) on the disc tray and press the [CD
u
]
button to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below. (eye pattern)
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
0.9 ± 0.4 Vp-p
Checking Location:
TUNER SECTION
CD SECTION
TP124
(VC)
– CD Board (Conductor Side) –
TP121
(RFI)
IC101
HCD-HX30R
14
MEMO
HCD-HX30R
HCD-HX30R
15
15
SECTION 6
DIAGRAMS
SYSTEM CONTROLLER
IC301 (1/4)
CD-MP3 PROCESSOR
IC101
MUTE
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
95
89
A
AVDD
+3.3V
+3.3V
DETECTOR
FNi1 (A)
RFo
97 FPi1 (B)
88
2
AGCi
3
RFRP
RFZI
7
6
TEi
TEZi
83
RFEQo
81 RFi
82 RFRPi
82 RFRPi
30
LO
27
RO
65
AIN (PI4)
66
BCKi (PI5)
BCK
A-IN
CLOCK
DATA
BUS1
BUS0
BUS2
BUS3
BUCK
67
LRCKi (PI6)
LRCK
51
PIO3
GATE
46
AoUT3 (PO4)
ST-REQ
38
BUS0
R-CH
94 FNi2 (C)
96 FPi2 (D)
100 TNi (E)
98 TPi (F)
91 LDo
92
MDi
2 VO1+
1 VO1–
13 DMo
AUTOMATIC
POWER CONTROL
Q301
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
B
C
D
E
F
12 FMo
10 TRo
9 FOo
20 IO0 (/HSO)
I-V AMP
M401
(SPINDLE)
M402
(SLED)
12 VO2–
11 VO2+
18 VO3+
17 VO3–
26 VO4+
27
7
IN4’ 24
IN3’ 20
IN2’ 9
IN1 3
BIAS 23
84 VRo
VO4–
M
M
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC401
S201
(LIMIT)
DVDD
+3.3V
24
XO
23
XI
X102
16.9344MHz
22 CD DRIVE MUTE
LOADING
MOTOR DRIVE
IC320
CDM LOAD IN 49
CDM LOAD OUT
CDM OPEN SW
CDM CLOSE SW
48
50
51
M
A
CD-L
47
AoUT3 (PO5)
63
BCK (PO8)
B
DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ
C
BUS0 – BUS3,
BUCK, CCE, REQ
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: USB
VCC
A
B
C
D
E
F
LD
PD
SP+
VC
SP–
SL+
SL–
T+
T–
F+
F–
1
2
3 CD BUS0
13
39
BUS1
4
3
2 CD BUS1
5
40
BUS2 (SO)
8
9
1 CD BUS2
23 CD CLK
6
41
BUS3 (SI)
11
10
100 CD BUS3
12
DATA BUS SWITCH
IC311
1
2
13
4
3
5
5
8
9
6
6
11
10
12
12
DATA BUS SWITCH
IC312
SIGNAL SELECTOR
IC313
A/B
Q321
42
BUCK (CLK)
4
2
3
CCE
24 CD CCE
43
XCCE
54
SBSY
48
PIO0
7
26 MP3 IREQ
6 DEC BUS SEL1
19 SBSY
37
XRST
25 CD XRST
5
REQ
6
12
14
13
9
10
11
1
S001
DISC TRAY
OPEN/CLOSE DETECT
OPEN
CLOSE
M001
(LOADING)
6-1. BLOCK DIAGRAM - CD SERVO Section -
(Page 16)
(Page 16)
(Page 16)
HCD-HX30R
HCD-HX30R
16
16
AUDIO IN
R-CH
J981
CD-L
A
8
5
4
22
DA
TA
21
CLK
D
L-CH
LOUT
INPUT SELECTOR, ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC304
: AUDIO
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
: TUNER (FM/AM)
PHONES
R-CH
J982
INL3
IGOUTL
VOLINL
INL2
INL1
9
MUTING
IC315
R-CH
27
MUTING
CONTROL SWITCH
Q303, 304
MUTING
IC316
R-CH
MUTING
CONTROL SWITCH
Q306, 307
HEADPHONE
AMP
IC317
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
35 USB TXD/SAT TXD
SYSTEM CONTROLLER
IC301 (2/4)
CN902
(USB)
3
2
1
D+
D–
78 USBPON
70 CS2
64 RD
65 WR
66 SRLLB
67 SRLUB
64 RD
65 WR
66 SRLLB
67 SRLUB
VBUS
B
DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ
C
BUS0 – BUS3,
BUCK, CCE, REQ
VBUS POWER
ON/OFF SWITCH
IC915
5
1
4
OUT
EN
3
FLG
IN
VBUS
+5V
93
DATA
92
BCK
BCK
A-IN
85
DATA
86
CLOCK
CLOCK
DATA
LRCK
GATE
GATE
ST-REQ
71
LRCK
94
GATE
97
ST-REQ
55
BUS0
56
BUS1
BUS1
BUS0
88
RXD1
36 USB RXD/SAT RXD
87
TXD1
38 USB_RTS
2
DI
37 USB_CTS
84
DO
27 USB RESET
1
/RESET
BUS2
BUS3
BUS3
BUCK
57
BUS2
58
BUS3
59
/BUCK
CCE
REQ
60
/CCE
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
X901
9MHz
TUNER (FM/AM)
AM
FM ANT
AM ANT
L OUT
R OUT
DO/STEREO
R-CH
ST DIN
ST CLK
ST CE
FM75
Ω
COAXIAL
ANTENNA
88 ST DATA IN/STEREO
90 ST DATA OUT
89 ST CLK
87 ST CE
90 ST DATA OUT
89 ST CLK
87 ST CE
: USB
6
AUDIO IN DET 69
55
56
56
AMP DATA
AMP CLOCK
54
TA LINE-MUTE
52
HP MUTE
68
HP DET
6-2. BLOCK DIAGRAM - MAIN Section -
(Page 17)
(Page 15)
(Page 15)
(Page 15)
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