Sony CMT-HPR95 / HCD-HPR95 Service Manual ▷ View online
HCD-HPR95
13
13
HCD-HPR95
Checking Location:
+
–
–
CD board
TP (RFACI)
TP (VC)
TP (VC)
oscilloscope
(DC range)
Procedure :
1. Connect oscilloscope to TP (RFACI) and TP (VC) on the CD
board.
2. Press the
I/1
button to turn the power on, and press
the
Z
button to open the CD disc table.
3. Set disc (YEDS-18) on the tray and press the
CD u
button
to playback.
4. Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (
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
TIME/DIV: 500 ns
level:
0.9
0.9
±
0.4 Vp-p
TP
(VC)
TP
(RFACI)
IC201
– CD Board (Conductor Side) –
CD SECTION
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 M
Ω impedance.
4.
Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
signal level is low than specified value with the following checks.
5.
Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
SECTION 5
ELECTRICAL CHECK
TUNER SECTION
FM TUNE LEVEL CHECK
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
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.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confirm “TUNED” is lit on the display for A, B and C signals.
4. Confirm “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.
signal
generator
set
HCD-HPR95
14
14
HCD-HPR95
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD SERVO Section –
CD DSP
IC201
CH2RIN
MUTE
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
57
64
A
3.3V
(CD)
(CD)
DETECTOR
A
AC_
SUM
58 B
65
EG_
IN
IN
70
RFACO
71 RFACI
3
PCMD
112
AOUT1
117
AOUT2
4 PCMDI
5
BCK
55
FEO
53
TEO
52
TEI
54
FEI
6 BCKI
R-CH
1
LRCK
2 LRCKI
59 C
60 D
50 E
51 F
66 LD
67 PD
16 CH4OUTF
15 CH4OUTR
27 OPOUT
38 MDP
AUTOMATIC
POWER CONTROL
Q321
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSM-213D)
B
C
D
E
F
41 SFDR
42 SRDR
43 TFDR
44 TRDR
45 FFDR
46 FRDR
DATA
I-V AMP
M401
(SPINDLE)
M402
(SLED)
17 CH3OUTF
18 CH3OUTR
14 CH1OUTF
13 CH1OUTR
12 CH2OUTF
11
7
20
89
SSTP
39
CH2FIN 6
CH1RIN 5
CH1FIN 4
CH3RIN 22
CH3FIN 23
CH4IN 24
OPIN+ 2
CH2OUTR
M
M
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC402
S201
(LIMIT)
3.3V
(CD)
(CD)
108
XTAO
109
XTAI
X201
16.9344MHz
CLOK 11
XLAT 16
SENS 20
SCOR 26
DATA2 12
CLK2 90
XLAT-MP3 13
REQ-MP3 14
IREQ-MP3 10
ACK-MP3 15
XTACN 7
XRST 8
35 CD DATA
37 CD CLK
43 CD XLT
19 CD SCOR
6 MP3 DATA IN
5 MP3 DATA OUT
7 MP3 CLK
46 MP3 XLAT
45 MP3 REQ
47 MP3 IREQ
44 MP3 ACK
49 CD XTACN
48 CD XRST
50 CD DRIVER MUTE
36 CD SENS
LOADING MOTOR
DRIVE
Q1610 – 1613
M1+ 41
M1– 42
M
CAM GEAR MOTOR
DRIVE
Q1614 – 1617
M2+ 39
M2–
DLM5B E0,
E1/SW2,
E2/SW1,
E3/SW3,
E2/SW1,
E3/SW3,
SW5 – SW8
E0, E1/SW2,
E2/SW1,
E3/SW3,
SW5 – SW8
E2/SW1,
E3/SW3,
SW5 – SW8
40
A
CD-L
STANDBY LED
SYSTEM CONTROLLER
IC1301 (1/3)
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
27, 34, 33,
28, 26 – 23
M1+
M1+
M
M2+
M2+
DLM5B DISC SENS 22
COLLECTOR
ANODE
CD MECHANISM
DECK BLOCK
B+ SWITCH
Q1618
CDM +3.3V
D
(Page 15)
(Page 16)
HCD-HPR95
15
15
HCD-HPR95
6-2. BLOCK DIAGRAM – AUDIO Section –
AUDIO IN
R-CH
J981
CD-L
A
TUNER (FM/AM)
AM
FM ANT
AM ANT
L-OUT
R-OUT
DO/STEREO
R-CH
ST DIN
ST CLK
ST CE
FM 75
Ω
COAXIAL
ANTENNA
56 ST DIN/STEREO
9
4
5
7
54 ST DOUT
55 ST CLK
53 ST CE
14
SI
13
SC
AMP SI
61
AMP SC
63
LINE MUTE
60
HP MUTE
58
AUDIO IN DETECT
100
B
HP
OUT1
INPUT SELECTOR, ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC1501
SYSTEM CONTROLLER
IC1301 (2/3)
: TUNER (FM/AM)
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
PHONES
R-CH
J982
C1
SEL1
VIN1
B1
A1
1
MUTING
IC1503
R-CH
17
MUTING
CONTROL SWITCH
Q1501, 1502
MUTING
IC1504
R-CH
MUTING
CONTROL SWITCH
Q1508, 1509
HEADPHONE
AMP
IC1502
1
A/D CONVERTER
IC701
STREAM PROCESSOR
IC705
LIN
31 DATA
15 SCKI
DOUT 12
30 BCK
BCK 11
29 LRCK
36 XFSIIN
48 XFSOIN
LRCK 12
S-MASTER DATA 70
OUTL1 11
OUTL2 9
OUTR1 6
OUTR2 4
X702
49.152MHz
21 SCDT
S-MASTER SHIFT 71
22 SCSHIFT
S-MASTER LATCH 72
23 SCLATCH
S-MASTER PG MUTE 66
20 PGMUTE
S-MASTER SOFT MUTE 67
19 SOFTMUTE
S-MASTER NSP MUTE 73
18 NSPMUTE
S-MASTER INIT 75
27 INIT
S-MASTER RST 68
S-MASTER SD 69
CLOCK SHIFT
IC703
CLOCK BUFFER
IC709
DIGITAL POWER AMP
IC707
2 BP
17 AP
3
/SD
OUT_B 29
OVER LOAD
DETECT
Q702, 703
OVER LOAD
DETECT
Q752, 753
OUT_A 25
OUT_B 30
OUT_A 26
4
/RST
DIGITAL POWER AMP
IC708
2 DP
17 CP
3
/SD
OUT_D 29
OUT_C 25
OUT_D 30
OUT_C 26
4
/RST
L.P.F.
L.P.F.
L.P.F.
L.P.F.
PROTECT
DETECT
Q701
R
L
+
–
+
–
SPEAKER
J860
(Page 16)
(Page 16)
HCD-HPR95
16
16
HCD-HPR95
6-3. BLOCK DIAGRAM – PANEL, POWER SUPPLY Section –
REMOTE CONTROL
RECEIVER
IC951
FL901
FLUORESCENT
INDICATOR
TUBE
1 LED1
FLUORESCENT INDICATOR
TUBE DRIVER
IC901
SYSTEM CONTROLLER
IC1301 (3/3)
57
POWER ON/OFF
20
AC CUT
RESET SIGNAL
GENERATOR
IC1302
RESET SWITCH
Q1301
B+ SWITCH
Q952
38
CDM SD
84
AC DET
12
RESET
94 VOLUME
SEG1 – SEG16
31 – 42
14 – 29
GR1 – GR12
KEY1 – KEY3
93 – 91
D952
DSGX
88 STANDBY LED
4 SIRCS
D951
STANDBY
LED DRIVE
Q951
ROTARY
ENCODER
VOLUME
PUSH ENTER
RV952
95 JOG
ROTARY
ENCODER
RV951
(JOG)
13
XOUT
15
XIN
X1302
5MHz
11
XCOUT
10
XCIN
X1301
32.768kHz
DIN
FL SD
7
1
CLK
FL SCK
8
2
STB
FL STB
9
3
74 WAKE UP KEY
S951 – 957,
S961 – 966,
S961 – 966,
S971 – 975
(AC IN)
T603
SUB POWER
TRANSFORMER
T31
MAIN POWER
TRANSFORMER
F1
LINE FILTER
T1
RECT
D1
+
+
S1
VOLTAGE
SELECTOR
120 – 127V
220 – 240V
(E)
D603
D14
4
POWER CONTROL
IC601
VCC
5 DRAIN
2 FB
POWER CONTROL
IC11
1 VENSE
2 F/B
9 OCP
16 VG (H)
ISOLATOR
PH601
ISOLATOR
PH11
ISOLATOR
PH602
SHUNT
REGULATOR
IC650
D1206
D1208 – 1210,1213
D1212
18
VD
SWITCHING
Q12
12 VG (L)
SWITCHING
Q11
15 VS
8 VC1
Q601
RECT
D32
RECT
D31
D1211
D652
D33
+28V
+4V
+3.3V
(CD)
+1.8V
(CD)
MOTOR
B+
D1204
+3.3V
(AMP)
+1.8V
(AMP)
D1203 (1/2)
D1201
+3.3V
(FL)
D1203 (2/2)
CDM
+3.3V
+3.3V
(LED)
(LED)
EVER
+3.3V
+7V
+9V
+7V
REGULATOR
IC1205
+9V
REGULATOR
IC1202
+12V
REGULATOR
IC1201
+4V
REGULATOR
IC1203
REGULATOR
Q1607 – 1609
PROTECT
DETECT
Q1606
+5V
+12V
+5V
REGULATOR
IC1204
+9V
(HP AMP)
+3.3V
(ADC )
RIPPLE
FILTER
Q1510
+3.3V REGULATOR
IC702
+1.8V REGULATOR
IC704
+1.8V
REGULATOR
IC203
D1202
DC DETECT
Q651, 652
POWER ON/OFF
RELAY DRIVE
Q650
VEE
FLUORESCENT
INDICATOR TUBE
(FL901)
RECT
D912, 922
OSC
Q921, 922
F1
F2
T921
INVERTER
TRANSFORMER
HP
B
STANDBY LED
D
(Page 15)
(Page 14)
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