Sony CMT-HP7 / HCD-HP7 Service Manual ▷ View online
25
HCD-HP7
CD SECTION
Note:
1.
CD Block is basically constructed to operate without
adjustment.
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.
when the signal level is low than specified value with the
following checks.
5.
Check the focus bias check when optical block is replaced.
Focus Bias Check
Procedure :
1.
1.
Connect oscilloscope to TP (RF) and TP (VC) on the BD board.
2.
Press the
?/1
button to turn the power on.
3.
Put disc (YEDS-18) in and press the
N
(CD) button to play-
back.
4.
Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (
below. (eye pattern)
A good eye pattern means that the diamond shape (
) in the
center of the waveform can be clearly distinguished.
+
–
–
BD board
TP (RF)
TP (VC)
TP (VC)
oscilloscope
(DC range)
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
TIME/DIV: 500 ns
level:
1.0
1.0
±
0.2 Vp-p
s
Checking Location:
– BD BOARD (Conductor Side) –
1
14
28
15
60
61
80
40
21
1
20
41
IC721
IC803
IC722
CN710
TP(RF)
TP(VC)
26
HCD-HP7
MODE MOTOR board
ROLLER MOTOR board
STOCKER MOTOR board
PANEL board
MAIN board
PWR AMP board
SENSOR (FAN) board
PWR TRANS board
SUB TRANS board
SW (1) board
CONNECTOR board
ST ENCODER board
BD board
SW (2) board
SW (3) board
SW (4) board
SENSOR board
• Circuit Boards Location
SECTION 8
DIAGRAMS
27
27
HCD-HP7
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
•
A
: B+ Line.
•
B
: B– Line.
• V oltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
∗
: Impossible to measure
• V oltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• W aveforms are taken with a oscilloscope.
• W aveforms are taken with a oscilloscope.
• W aveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
J
: CD
L
: MD
E
: PB (TAPE)
a
: REC (TAPE)
c
: DIGITAL OUT
• A bbreviation
AUS
: Australian model.
CND : Canadian model.
E2
E2
: 120 V AC area in E model.
E3
: 220-240 V AC area in E model.
KR
: Korean model.
MX
: Mexican model.
RU
: Russian model.
TH
: Thai model.
TW
: Taiwan model.
• Indication of transistor
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
• Waveforms
– BD Board –
– BD Board –
1
IC721
4
(RF)
(CD Play Mode)
1.3 Vp-p
2
IC721
qd
(FE)
(CD Play Mode)
3
IC721
qg
(TE)
(CD Play Mode)
4
IC721
rk
(XOUT)
(CD Play Mode)
180 mVp-p
150 mVp-p
4 Vp-p
200 mV/DIV, 400 ns/DIV
100 mV/DIV, 1 ms/DIV
100 mV/DIV, 1 ms/DIV
1 V/DIV, 20 ns/DIV
59 ns
5
IC601
qd
(XT2)
3.4Vp-p
30.5
µ
s
1V/DIV,
10
µ
s/DIV
1V/DIV,
40 ns/DIV
3Vp-p
6
IC601
qh
(CF2)
125 ns
– PANEL Board –
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
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.
B
These are omitted.
C
E
Q
– MAIN Board –
12 Vp-p
13
µ
s
5V/DIV, 4
µ
s/DIV
7
Q207 collector(REC Mode)
B
C
E
These are omitted.
28
28
HCD-HP7
8-1. Block Diagram
: PB (TAPE)
: REC (TAPE)
: TUNER
: CD
• Signal Path
• RCH is omitted due
to same as L-ch.
to same as L-ch.
: DIGITAL OUT
: MD
SYSTEM CONTROLLER
IC601 (1/2)
L
R
MD
IN
TUNER PACK
L-CH
R-CH
R-CH
D OUT
D IN
CLK
CE
TUNED
R-CH
+10V
VM+10V
STEREO
MUTE
OPTICAL PICK-UP BLOCK
(KSM-213D)
LD
DRIVER
Q701
+5V
LD
GND
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
SLED/SPINDLE
MOTOR DRIVE,
MOTOR DRIVE,
FOCUS/TRACKING
COIL DRIVE
IC722
RF AMP,
FOCUS/TRACKING ERROR AMP
IC721
12
20
11
18
17
VR
PD
26
27
2
1
10
FOIN
25
3
7
MUTE
VO2(-)
M
M
M701
(SLED)
M702
(SPINDLE)
S701
(LIMIT)
39
DOUT
VREF
11
VCC
VC
A
B
C
D
E
F
DETECTOR
FIN 2
FIN 1
TIN 1
9
TIN 2
10
LDD
80
LDS
79
FDO
21
TDO
20
SLDO
23
SPDO
22
63
DI
62
CL
61
CE
65
WRQ
42
LCHO
67
DRF
8
7
VO2(+)
VO3(+)
VO3(-)
VO4(+)
VO4(-)
VO1(+)
VO1(-)
TIN
SLIN
SPIN
CD
DIGITAL
OUT
(OPTICAL)
PH301
JK301
FM
AM
+3.3V
RDATA
RCLK
+4V
AEP/UK
MODEL
MODEL
CONT4
25
LIMIT SW
70
64
DO
66
RES
57
ASDFIN
56
ASDACK
55
ASLRCK
58
LRSY
52
C2F
50
FSX/16MIN
54
16MOUT
26
MP3RES
49
XIN
48
XOUT
X701
16.9344MHz
MP3 DECODER
IC801
ADDATA
2
COMDOUT
73
ADBCK
3
60
DATA
59
DATACK
DATAIN
79
DATACK
80
ADLRCK
4
LRSY
1
C2FIN
5
CKOUT
9
CKIN
7
RESB
78
76
CE
66
F SYNC
IO1-16
A0-8
CE
LCAS
UCAS
WE
RAS
SRAM
IC802
IC803
+1.8V
REG
DVDD2,5
+3.3V
DVDD1,3,4,6
AVDD
75
COMDIN 74
R-CH
BIAS
OSC
Q207
VM+10V
ERASE
HEAD
REC/PB
HEAD
DECK
Q208
PB/REC EQ AMP
IC201
PB IN(L)
34
REC OUT(L)
21
26
PB OUT(L)
24
REC IN(L)
L201
BIAS
BIAS
R-CH
Q201
Q203
Q203
BIAS
Q212
Q205
SWITCH
Q206
P5
19
P4
20
15
REC MUTE ON/OFF
14
MUTE ON/OFF
13
A/B
I/O EXPANDER
IC302
5
P15
P3
21
P2
22
23
ALC(L)
Q211
MECHA BLOCK
PLAY
T SOL
DRIVE
DRIVE
Q406,407
MOTOR
DRIVE
Q408,409
R REC
F REC
PACK
END
DECK
SOL
MOTOR
M
SW401
TAPE
OPEN/CLOSE
P0
24
P1
23
26
DI1
3
CLK
4
LATCH
MUTE
Q209
P9
11
P8
12
6
P14
7
P13
8
P12
9
P11
10
P10
18
P6
17
P7
INA2
40
IND2
37
SOUND PROCESSOR
IC301
POWER AMP
IC501
10
11
12
3
4
PROTECT
DETECT
Q507,508
D505
MUTE
Q304
JK601
PHONES
R CH
R CH
L
RY501
R
JK501
SPEAKER
OVER LOAD
DETECTOR
Q503
RELAY
DRIVE
Q512
P1
P22
G1
G12
FLOURESCENT
INDICATOR TUBE
SYSTEM CONTROLLER
IC601 (1/2)
FIL2
FIL1
FUNCTION
KEY
VOLUME
ENCODER
X601
32.768kHz
FLD601
41
30
12 XT1
13
FUNCTION
KEY
S601-610
FUNCTION
KEY
S614-622
REMOTE
CONTROL
RECEIVER
RECEIVER
RM601
T901
MAIN TRANS
FIL1
FIL2
S627-636
LED607-611
LED614
+VCC
-VCC
POWER
AMP
D901-904
+4V
REG
1
5
IC602
T902
SUB TRANS
42
45
47
.
50
52
.
65
CD DRF
76
15 CF1
16
RES601
8MHz
XT2
CF2
D401-404
+10V
REG
REG
3
1
IC401
VM+10V
+10V
REG
3
1
IC403
VCC+10V
D405-408
EVER+10V
EVER+3.3V
INC2
38
25
OUT2
DBFB
Q301
Q301
D417
D509
FAN
FAN
DRIVE
Q514,515
+VCC
TH501
FAN
SWITCH
Q505
19
SA OUT
VR601
80
RELAY
DRIVE
Q410
RY901
S902
VOLTAGE
SELECTOR
RECB2
35
1
REF
INB2
39
21
DATA
22
CLOCK
MUTE
CONT
CONT
Q306,307
MUTE
Q501
PROTECT
CONT
Q509
OVER HEAT
DETECTOR
Q504,506
PROTECT
SWITCH
Q513
PROTECT
SWITCH
Q511
PROTECT
SWITCH
Q510
D507
VACS
Q609,610
VACS
23
MCLK
7
1
SYS MUTE
DI
96
DO
95
CLK
97
TUNED
74
STEREO
75
DATA
2
CLK
29
CE
9
DI
99
DO
98
CLK
100
CE
5
CD WRQ
77
CE
6
SYNC
10
RESET
4
75
CL 75
CE
8
81
CDM D SENSOR
71
CDM SW1-A
70
CDM SW2-A
69
CDM SW2-B
73
CDM SW3
68
CDM SW4
67
CDM SW5-A
66
CDM SW5-B
22
CDM SLDE1
21
CDM SLDE
20
CDM ELVE
TCM
18
TCM1
19
TAPE END
83
82
PROTECTOR
11
RESET
94
POWER RELAY
26
KEY0
25
KEY1
24
KEY2
79 VR ENC A
VR ENC B
92
DISC1 LED
91
DISC2 LED
88
93
DISC3 LED
87
DISC4 LED
86
DISC5 LED
28 REMCON IN
RESET
1
3
IC603
D620
D624
RESET
SWITCH
Q601
27
PWR LED
PWR DOWN
POWER
CONTROL
Q411
D413
D414
D907
VM+10V
AC
IN
E2, E3, TW
-VFL
REG
REG
Q412
-VFL
FAN+B
D501
D412
D410
D622
+4V
REG
REG
3
1
IC402
+4V
OUT1
FIN
OUT2
RIN
IC721
STOCKER MOTOR DRIVE
M761
(STOCKER)
M
7
9
4
2
OUT1
FIN
OUT2
RIN
IC711
ROLLER MOTOR DRIVE
M781
(ROLLER)
M
7
9
4
2
OUT1
FIN
OUT2
RIN
IC701
MODE MOTOR DRIVE
S771
ROTARY ENCODER (MODE)
M771
(MODE)
M
7
9
4
2
S713 (DISC IN (8/12cm))
S714 (DISC IN (8cm))
S715 (DISC OUT)
S716 (STOCKER IN/OUT)
S711 (DISC INSERT(8/12cm))
S717 (DISC POSITION)
S718 (STOCKING)
1
G
2
3
4
S702
ROTARY ENCODER
(STOCKER POSITION)
1
2
3
4
(ON : When disc insert)
S711
S713
S714
S715
S717
S718
(ON : When disc out from play position)
In the midst disc is moving
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
OFF: In the Midst disc is moving
between play position and
stocker
stocker
(ON : Play position)
(8cm disc only)
ON : Play position
S716
from stocker
ON : The moment disc in/out
LEVEL
SHIFT
Q731
DISC INSERT
DETECT SENSOR
IC751
G
SYSTEM CONTROLLER
IC601 (2/2)
• Abbreviation
E2:120V AC area in E model.
E3:220-240V AC area in E model.
TW:Taiwan model.
Ver 1.1 2003.11
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