Sony CMT-L1 / HCD-L1 Service Manual ▷ View online
21
HCD-L1
Reset of No Disc Error History
1.
1.
Select the operation in the menu by pressing the . or >
button to display “dvt ECONT0 BU”.
button to display “dvt ECONT0 BU”.
2.
Press the CD PLAY button. No disc error history is reset.
Reset of Error History
1.
1.
Select the operation in the menu by pressing the . or >
button to display “dvt ECONT0 ALL”.
button to display “dvt ECONT0 ALL”.
2.
Press the CD PLAY button. Error history is reset.
[Servo Test Mode]
*Error Rate Display
Procedure:
Setting Method of Test Mode
1.
Procedure:
Setting Method of Test Mode
1.
Press the ?/1 button to turn the set ON.
2.
Insert the disc.
3.
Select the FUNCTION to CD.
4.
Press the NX button to play the CD.
5.
To enter the test mode, press three buttons DISPLAY , VOL+
and FUNCTION simultaneously.
and FUNCTION simultaneously.
6.
Press the . or > button to display “dvt ERR RATE”.
7.
Press the Z OPEN button.
Description of Error Rate
Releasing Method of Test Mode
1.
1.
Press the x button to display “dvt ERR RATE”.
2.
Press three buttons DISPLAY , VOL+ and FUNCTION
simultaneously.
simultaneously.
" ****####%%@@&& "
C1
C2
TNO MIN SEC
22
HCD-L1
SECTION 5
ELECTRICAL ADJUSTMENTS
CD SECTION
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10M
3. Use an oscilloscope with more than 10M
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.
following checks.
RF Level Check
Procedure :
1. Connect oscilloscope to TP (RFAC).
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RF signal
1. Connect oscilloscope to TP (RFAC).
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
Note:
Clear RF signal waveform means that the shape “
◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
E-F Balance (1 Track jump) Check
Procedure:
1.
1.
Connect oscilloscope to TP (TE) and TP (DVC) board.
2.
Turned Power switch on.
3.
Load a disc (YEDS-18) and playback the number five track.
4.
Press the u button. (Becomes the 1track jump mode.)
5.
Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
waveform.
1 track jump waveform
TP(RFAC)
TP(DVC)
TP(DVC)
BD board
oscilloscope
oscilloscope
BD board
TP (TE)
TP (DVC)
TP (DVC)
+
–
–
VOLT/DIV : 200mV
TIME/DIV : 500ns
TIME/DIV : 500ns
level : 1.1
±
0.3Vp-p
A
B
0V
Center of
waveform
waveform
B
Symmetry
A (DC voltage)
level=1.3
±
0.6Vp-p
Adjustment Location :
[ BD (CD) BOARD ] — SIDE A —
IC103
TP
(RFAC)
TP(TE)
TP(DVC)
IC101
Specification level:
x
100=less than
±22%
23
23
HCD-L1
SECTION 6
DIAGRAMS
6-1. Block Diagrams CD Section
• Signal Path
: CD (DIGITAL)
: CD (ANALOG)
• R-CH is omitted due to same as L-CH.
OPTICAL PICK-UP
BLOCK
PD1
5
PD2
I5-10
I1-6
LD+
VC
VCC
BD+5V
GND
PD
VR
SW
LD
DRIVE
Q101
IC103
RF AMP
VC
27
VFC
25
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
IC102
MOTOR/COIL DRIVER
VO1+
47
VO1-
52
55
56
M
5
10
2
1
M
F-
FOCUS
COIL
TRACKING
COIL
F+
TR-
TR+
35
IN1+
34
IN1-
32
31
27
26
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
IC101
DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
D OUT
RFAC
50
28
RFDCO
15
RFAC
16
FE
17
FEI
18
TE
12
SW
29
RFDCI
RFDC
43
FE
39
TE
41
SE
BD+5V
RV101
40
4
DATA
6
CLOK
5
XLAT
76
SQSO
7
SENS
26 SSTP
19 TE_BAL
2
XRST
69
XTSL
IC600
CD CONTROL
DATA
8
SCLK
77
SQCK
15
SCOR
CLK
XLT
SUBQ
SENSE
SQCLK
SCOR
CTRL1
24
BDPWR
31
7
8
13
15
18
17
91
32
LDON
14
BDRST
PWM1
12
PWM2
19
PWM3
20
ENC1
43
ENC2
44
ENC3
45
ENC4
46
SW(L.MTR)
49
SW(C.MTR)
48
L.SENS
77
3
D.SENS
78
VO2+
VO2-
VO3+
VO3-
VO4-
VO4+
IN2+
IN2-
IN3+
IN3-
IN4R
8
24
STBY
8
4
10
8
6
11
7
2
M102
SLED
MOTOR
M101
SPINDLE
MOTOR
64
S1
LIMIT IN
SWITCH
39
X1
38
X2
X600
20MHz
3
IICDATA
5
IICCLK
89
IICHELP
90
IICHELP
93
AC-CUT
34
RESET
RESET
GEN
Q600
I2C-DATA, I2C-CLK, I2C-HELP, ACCUT
I2C-DATA
I2C-CLK
I2C-HELP
ACCUT
B
MAIN
SECTION
D+5V
+3.3V
REG
Q103,D101
SWITCH
Q601
BD+3.3V
BD+5V
Q602
XTAI 71
3
IC791
OPT OUT
D OUT
IC711
LO MOTOR DRIVER
IC721
L SENSOR
3
IC731
D SENSOR
M711
(LO)
M
7
9
4
2
IC701
CK MOTOR DRIVER
RIN
FIN
OUT1
OUT2
S741
M
7
9
4
2
RIN
FIN
OUT1
OUT2
M701
(CK)
LO-MTR(POS)
LO-MTR(NEG)
54
55
54
55
CK-MTR(POS)
CK-MTR(NEG)
ROTARY
ENCODER
S731
L MOTOR
C MOTOR
C MOTOR
6
7
8
IC1410
384Fs OSC
LRCK
DATA
BCK
R-CH
3
2
1
LAT
CLK
DATA
15
14
13
MCLK
VCOM
ROUT
LOUT
DAOUT-L
16
10
8
7
LRCK 65
PCMD 66
BCLK 67
+
–
6
IC1431
LPF
5
7
X1410
16.9344MHz
DACLAT
100
DACCLK
2
DACDAT
1
IC1400
DA CONV
A
MAIN
SECTION
D+3.3V
SWITCH
Q1411
24
24
HCD-L1
MAIN Section
: FM
: CD (DIGITAL)
: MD/TAPE(PB)
: MD/TAPE(REC)
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD (ANALOG)
TUNER PACK
INA1
DAOUT-L
3
INC1
5
IC711
SOUND PROCESSOR
INEX1
OUT1
L-CH
R-CH
CLK
DO
DI
CE
STEREO
MUTE
TUNED
R-CH
IC500
MASTER CONTROL
IC1201
FL DRIVER
IC301
S-MASTER
FL1201
FLUORESCENT
INDICATOR TUBE
25
27
HP-MUTE
24
HP-IN
23
SM OPC
22
SM DRV RST(EN)
41
SM INIT
19
SM NSP MUTE
16
SM DATA
17
SM CLK
15
SM CS
SM INIT
NSP MUTE
SM DATA
SM CLK
SM CS
SM INIT
NSP MUTE
SM DATA
SM CLK
SM CS
ACCUT IN
RESET 34
INB1
4
CLK
DATA
22 21
Q470,471
MUTING
MUTING
SWITCH
SWITCH
Q525-527
RESET
SWITCH
Q500
GEQ CLK
GEQ DATA
29
30
PLL-CLK
PLL-DI(ST UCOM)
PLL-DO(UCOM ST)
PLL-CE
STEREO
ST-MUTE
TUNED
43
44
45
46
47
48
49
+
–
3
IC401
HEADPHONE AMP
IC745
CLOCK DRIVER
2
1
1
12
IC731
ADC
J1321
PWR-RELAY
PHONES
L-IN
7
PDWN
15
SCKI
DOUT
11
BCK
10
43
44
1
10
45
LRCK
DATA
BCK
OUTR2+
OUTR1+
IC370
POWER AMP
4
7
OUTR2-
OUTR1-
6
16
9
19
INA
INB
7
ENA
17
ENB
OUTA
OUTB
18
DIAGB
8
DIAGA
LRCK
64
XFSIIN
AD RESET
91
-30V
REG
D+5V
DC
DETECT
Q393,394
Q396
D1281-1284
A+10V
+19V
+9V
STANDBY+5.6V
POWER RELAY
AC DETECT
T1281
DC CONVERTER
TRANSFORMER
TRANSFORMER
+10V
REG
IC800
3
1
R-CH
J701
J700
4
5
IC580
RESET
A
B
+6.2V
REG
IC804
4
2
SMASTER+6.2V
SMASTER+3.3V
SMASTER+5V
A+5V
+7V
REG
IC801
3
1
M+7V
FL -30V
F1
F2
64
DEVICE VDD 65
D1285
SWITCHING
Q1281,1282
+5V
REG
IC803
3
1
+3.3V
REG
IC333
4
5
Q711
D771
17
7
BB B1
16
18
BB A1
DBFB
SWITCH
Q1201
BUFFER
+5V
REG
IC802
3
1
D+5V(CD)
35
36
39
38
5
1
4
89
2
16
14
13
15
3
X501
32.768kHz
32.768kHz
X500
20MHz
20MHz
SCL
55
ACCUT OUT
SDA
100
HELP
XT1
XT2
6
7
X745
12.288MHz
IC300
CLOCK DRIVER
28
XFSOIN
36
SCLATCH
37
SCSHIFT
38
SCDT
39
NSPMUTE
41
INIT
2
4
X300
49.152MHz
X1
X2
FL-DATA
FL-CLK
FL-CE
12
DIG0
1G
DIG1
ı
DIG14
15G
ı
02G
SEG0
ı
SEG34
P01
ı
P35
FL-RST
SDATA
SCK
SCK
CS
RST
RST
I2C-CLK
I2C-DATA
I2C-DATA, I2C-CLK, I2C-HELP, ACCUT
CD
SECTION
77
FUNCTION
KEY
KEY1
78
FUNCTION
KEY
S1316-1319
KEY2
79
FUNCTION
KEY
KEY3
94
1
IC1351
REMOTE
SENSOR
SENSOR
SIRCS
93
RM INIT
I2C-BUSY
ACCUT
ACCUT
SIRCS
DETECT
90
KEY INIT
D593
SWITCH
Q1361
TOUCH
SWITCH
TS1361
SWITCH
Q571,572
IC1361
8
12
11
TOUCH
DETECT
IC1362
4
OSC
IC1361
71
D1311
(STANDBY)
D1381,1382
(LED L)
D1391,1392
(LED R)
LED1 ILM BLIGHT
68
ON/STANDBY
72
LED2 ILM DARK
SWITCH
Q802-804
13
FAN-ON
14
FAN LOW
11
ı
1
64
ı
62
•
6
ı
19
20
ı
54
59
ı
33
31
ı
24
•
5
1
58
ANTENA
FM75
Ω
/FM300
Ω
AM
ı
`/1
Q701
MUTING
MD/TAPE
MD/TAPE
IN
OUT
J301
SPEAKER
LCH
RCH
R-CH
R-CH
R-CH
R-CH
R-CH
SWITCH
R-CH
R-CH
12
13
IC1361
8
9
OPEN/CLOSE
Q800,801
SWITCH
Q400,401
REG
+5V
REG
IC305
4
5
1
SWITCHING
REGULATOR
UNIT
AC IN
+19V
HP AMP REF V
HP AMP B+
SMASTER+6.2V
A+3.3V
(D.C. FAN)
FAN101
S1311,1313-1315
S1320-1322
+3.3V
REG
Q789
CD
SECTION
RDS DATA
RDS INT
5V
RDS-DATA
50
RDS-CLK
96
AM
53
Q709,D709
CE ONLY
+5V
REG
+10V
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