Sony CMT-SPZ90DB / HCD-SPZ90DAB Service Manual ▷ View online
13
HCD-SPZ90DAB
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 (
◊
) 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.
5.
Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
Adjustment Location: Record/Playback/Erase Head
14
HCD-SPZ90DAB
MEMO
HCD-SPZ90DAB
15
15
HCD-SPZ90DAB
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-213DCP)
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–
SW1 – SW3,
SW5 – SW8
SW1 – SW3,
SW5 – SW8
SW5 – SW8
40
A
CD-L
SYSTEM CONTROLLER
IC1301 (1/4)
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
34, 33, 28,
26 – 23
M1+
M1+
M
M2+
M2+
CD MECHANISM
DECK BLOCK
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD SERVO Section –
(Page 16)
HCD-SPZ90DAB
16
16
HCD-SPZ90DAB
AUDIO IN
R-CH
J981
CD-L
A
L451
BIAS OSC
MUTING
Q305
HRPE1
(REC/PB/ERASE)
L-CH
R-CH
R-CH
R-CH
MUTING
Q307
MUTING CONTROL
SWITCH
Q305, 306
MUTING
Q401
R-CH
MUTING
CONTROL SWITCH
Q400, 407
REC CONTROL
SWITCH
Q409, 410
R-CH
REC AMP
IC401
PB AMP
IC301
ERASE
BIAS OSC
Q453
REC SWITCH
Q403
REC BIAS
SWITCH
Q451, 452
+9V
REC/PB
SELECT SWITCH
Q405, 406, 408
DAB TUNER MODULE
DAB/FM ANT
AUDIO_LEFT_OUT
AUDIO_RIGHT_OUT
S1_DOUT
R-CH
S1_DIN
ANTENNA
DAB/FM
32 DAB RXD
9
4
5
7
10
A
9
B
TC BIAS ON/OFF
31 DAB TXD
78
TC RELAY
76
TC REC MUTE
77
SEL A
51
SEL B
59
14
SI
13
SC
AMP SI
61
AMP SC
63
LINE MUTE
60
HP MUTE
58
AUDIO IN DETECT
100
C
L-CH
B
HP
X
OUT1
TC HALF/REC SW
INPUT SELECTOR, ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC1501
+MTR
M
TAPE MECHANISM
DECK BLOCK
HALF SW
REC SW
PHOTO OUT
CAPSTAN/REEL
MOTOR DRIVE
Q1602, 1603
90
+SOL
TRIGGER PLUNGER
DRIVE
Q1604, 1605
TC TRG 80
TC CAPM CNT1 79
TC PHOTO OUT 89
SYSTEM CONTROLLER
IC1301 (2/4)
: TUNER (DAB/FM)
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: TAPE PLAY
: REC
: AUDIO IN
PHONES
R-CH
J982
14
12
6
INH
SEL INH
65
Q1503
Q1504
Q1505
TUNER/TAPE
SELECT SWITCH
IC1505
13
X0
X1
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
LOW-PASS
FILTER
IC500, 501
CNP890
7-2. BLOCK DIAGRAM – MAIN Section –
(Page 15)
(Page 18)
(Page 17)
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