Sony CMT-F3MD / HCD-F3MD Service Manual ▷ View online
37
CN110
NOTE
D101
I+3V
IOP
IOP
TEO
RF
VC
RF
VC
GND
IC171
IC121
IC101
IC192
CN101
Note:
It is useful to use the jig for checking BD (MD) board waveform.
(Refer to Servicing Notes on page 9)
(Refer to Servicing Notes on page 9)
– BD (MD) BOARD (Side B) –
Adjustment Location:
– BD (MD) BOARD (Side A) –
5-15-2. MO Auto Gain Control Output Level Adjustment
Adjusting Procedure :
1. Load the test disc (MDW-74/AU-1).
2. Press the
1. Load the test disc (MDW-74/AU-1).
2. Press the
l
m
or
M
L
button to display “AG Set
(MO)”.
3. When the
ENTER/YES “R”
button is pressed, the adjustment
will be performed automatically.
“Complete!!” will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to “AG Set (MO)”.
“Complete!!” will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to “AG Set (MO)”.
4. Press the
A
(MD) button and take out the test disc.
38
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 10 M
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.
S-Curve Check
Procedure :
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Connect between TP (FE1) and TP (GND) by lead wire.
3. Connect between TP (AGCCON) and TP (GND) by lead wire.
4. Press the
1. Connect an oscilloscope to TP (FE) and TP (VC).
2. Connect between TP (FE1) and TP (GND) by lead wire.
3. Connect between TP (AGCCON) and TP (GND) by lead wire.
4. Press the
I/1
button to turn the power on.
5. Load a disc (YEDS-18) and press the
H S
(CD) button to
actuate the focus search. (In consequence of open and close the
disc tray, actuate the focus search)
disc tray, actuate the focus search)
6. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 4 ±1 Vp-p.
within 4 ±1 Vp-p.
7. After check, remove the lead wire connected in step 2 and 3.
Note :
• Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
Procedure :
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Connect between TP (AGCCON) and TP (GND) by lead wire.
3. Press the
1. Connect an oscilloscope to TP (RF) and TP (VC).
2. Connect between TP (AGCCON) and TP (GND) by lead wire.
3. Press the
I/1
button to turn the power on.
4. Load a disc (YEDS-18) and playback the number five track.
5. Confirm that the oscilloscope waveform is clear and check RF
5. Confirm that the oscilloscope waveform is clear and check RF
signal level is correct or not.
6. After check, remove the lead wire connected in step 2.
BD (CD) board
TP(FE)
TP(VC)
TP(VC)
+
–
–
oscilloscope
symmetry
S-curve waveform
within 4
±
1 Vp-p
A
B
BD (CD) board
TP(RF)
TP(VC)
TP(VC)
+
–
–
oscilloscope
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 an oscilloscope to TP (TE) and TP (VC) board.
2.
Press the
I/1
button to turn the power on.
3.
Load a disc (YEDS-18) and playback the number five track.
4.
Press the
H S
(CD) button. (Becomes the 1 track jump
mode.)
5.
Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
waveform.
1 track jump waveform
Specification level:
×
100=less than ±22%
6.
After check, remove the lead wire connected in step 1.
Adjustment Location:
VOLT/DIV : 200 mV
TIME/DIV : 500 ns
TIME/DIV : 500 ns
level : 1.45
±
0.3 Vp-p
BD (CD) board
TP(TE)
TP(VC)
TP(VC)
+
–
–
oscilloscope
0V
Center of
waveform
waveform
B
Symmetry
A (DC voltage)
level=1.3
±
0.6 Vp-p
A
B
TP (VC)
TP (RF)
TP
(AGCCON)
(AGCCON)
TP (FE)
TP (FE1)
TP
(TE)
(TE)
– BD (CD) BOARD (Conductor Side) –
39
39
HCD-F3MD
E
F
A
B
C
D
A
C
RF
FF
TE
D
B
E
F
LD
PD
VCC
VC
RF
SUMMING
AMP
FOCUS
ERROR
AMP
TRACKING
ERROR
AMP
AUTOMATIC
POWER
CONTROL
Q101
VC
BUFFER
RF EQ
AMP
DIGITAL
PLL
SUBCODE
PROCESSOR
SERIAL IN
INTERFACE
SERVO
AUTO
SEQUENCER
SERVO
INTERFACE
OVER SAMPLING
DIGITAL FILTER
D/A
INTERFACE
DIGITAL
OUT
TIMING
LOGIC
ERROR
CORRECTOR
EFM
DEMODULATION
APCLD/PD
AMP
5
7
8
6
16
14
49
51
56
54
55
53
13
LDON
22
21
12
11
10
3
IC103
RF AMP,
FOCUS/TRACKING ERROR AMP
VC
4
VREF
HOLD SW
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
11
12
T+
T–
14
13
F+
F–
TRACKING
COIL
FOCUS
COIL
CH2OUTR
CH2OUTF
5
CH2FIN
6
CH2RIN
2
CH1FIN
3
CH1RIN
23
CH3RIN
24
CH3FIN
25
CH4SIN
20
MUTE
CH1OUTF
CH1OUTR
17
18
SD+
SD–
CH3OUTF
CH3OUTR
M
15
16
SP+
SP–
CH4OUTF
CH4OUTR
M
M102
(SLED)
M101
(SPINDLE)
TFDR
TRDR
FFDR
FRDR
SRDR
SFDR
FD
PD
LASER
DIODE
A
C
D
B
E
F
DETECTOR
OPTICAL PICK-UP BLOCK
(KSS-213BH/Z-NP)
LD
POWER
RF AC
ASY1
48
43
39
41
40
28
26
29
ASY0
ASYMMETRY
CORRECTION
CORRECTION
SFDR
MDP
SRDR
33
32
FRDR
FFDR
31
30
TRDR
TFDR
SE
TE
FE
RFDC
SLED
PWM
PWM
GENERATOR
FOCUS
PWM
GENERATOR
TRACKING
PWM
GENERATOR
PWM
GENERATOR
SLED
SERVO
FOCUS
SERVO
SERVO
TRACKING
SERVO
SERVO DSP
DIGITAL
CLV
OPERATIONAL
AMPLIFIER
ANALOG
SWITCH
A/D
CONVERTER
16K
RAM
DATA BUS
3rd ORDER
NOISE SHAPER
PWM
PWM
CPU
INTERFACE
2
1
3
SQSO
60
D OUT
67
STAO
66
XTA1
8
SENS
20
SCOR
14
XLON
XRST
SQCK
5
DATA
6
XLAT
7
CLOK
32
56
19
59
81
58
82
9
SCLK
33
27
SSTP
70
LMUT
71
AIN1
72
LOUT1
77
LOUT2
76
AIN2
75
LOUT2
CD-L
R-CH
HOLD
SQCK
SCOR
CLOK
XLT
DATA
SENS
SQSO
XRST
DOUT
X101
16.9344MHz
16.9344MHz
MAIN
SECTION
(Page 42)
(Page 42)
05
S101
(LIMIT)
• SIGNAL PATH
: CD PLAY
: MD REC (DIGITAL)
: CD PLAY
: MD REC (DIGITAL)
• R-ch is omitted due to same L-ch.
57
B
BD (MD)
SECTION
(1/2)
A
MAIN
SECTION
C
2 AXIS DEVICE
FILTER
PCO
FILO
FILI
CTLV
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER,
DIGITAL SERVO PROCESSOR
IC101
(Page 40)
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD SERVO Section –
HCD-F3MD
40
40
6-2.
BLOCK DIAGRAM – MD SERVO Section (1/2) –
HR901
OVER WRITE
HEAD
OVER WRITE
HEAD DRIVE
Q181,182
3
6
1
2
FILTER
PCO
FILI
FILO
CLTV
PLL
EFM,
ACIRC,
ENCODER/
DECODER
RF AGC & EQ
AGCI
RFO
MORFI
MORFO
RF AMP
1
2
BPF
P-P
AT
AMP
BPF
ADAGC
VC
ANALOG
MUX
27
16
17
18
SERIAL
PARALLEL
DECODER
VICONV
20
25
22 23
4
5
6
7
8
9
IV AMP
IV AMP
E-F
BALANCE
14
15
3
VCC
VC
D101
12
11
10
LASER ON
SW
Q101
PD
AUTOMATIC
POWER
HF
MODULE
HF MODULE
SW
IC103,Q102-104
TRACKING
COIL
FOCUS
COIL
10
12
DRIVER
21
DRIVER
23
27
DRIVER
25
6
8
DRIVER
16
TFDR
PSB
XRST
SLED/SPINDLE MOTOR DRIVE,
FOCUS/TRACKING COIL DRIVE
FOCUS/TRACKING COIL DRIVE
IC152
05
M
M
M902
(SLED)
M901
(SPINDLE)
DETECTOR
F
I
J
C
D
B
A
E
VC
LD
PD
ILCC
15
14
ATRAC
ENCODER/
DECODER
SAMPLING
RATE
CONVERTER
DTRF
CKRF
XLRF
FOCNT
79
82
81
80
93
94
95
10
SPRD
SPFD
FG IN
XRST
SPINDLE
SERVO
ADIP
DEMODULATOR/
DECODER
78
ADFG
A/D
CONVERTER
SERVO
DSP
APC
PWM
GENERATOR
21
26
25
20
SUBCODE
PROCESSOR
11
12
MONITOR
CONTROL
CONTROL
4
3
2
1
3
CPU
I/F
AUTO
SEQUENCER
16
27
28
7
5
6
8
9
512FS
BCK
LRCK
D-RAM
IC124
SQSY
DQSY
MNT3
MNT2
MNT1
MNT1
MNT0
SENS
SRDT
SCLK
SWDT
XLAT
DIN1
19
DIN0
ADDT
DADT
DOUT
91
92
85
86
89
88
83
13
RECP
APCREF
FFDR
FRDR
TFDR
TRDR
SFDR
SRDR
FOCNT
XLAT
SCLK
SWDT
CSLED
SE
TE
26
28
32
30
ADFG
ADIN
ADFM
29
31
34
66
68
75
74
FE
VC
TE
SE
33
67
36
37
35
64
63
65
AUX
BOTM
PEAK
ABCD
FE
AUX1
BOTM
PEAK
ABCD
38
RF
57
RFI
59
60
61
61
62
ABCD
AMP
FOCUS
ERROR
AMP
I
J
A
B
C
D
D
E
F
F
VC
CVB
TEMP
AMP
TEMPR
TEMPI
APC
APCREF
EQADJ
3TADJ
WBLADJ
TRACKING
ERROR
AMP
OPTICAL PICK-UP BLOCK
(KMS-260B/S1NP)
48 47 46 40
RF AMP, FOCUS/TRACKING ERROR AMP
IC101
EFMO
TX
XINIT
CLOCK
GENERATOR
14
15
18
19
29
30
3
4
SPFD
SPRD
SPRD
SFDR
SRDR
TRDR
FRDR
FFDR
OVER WRITE HEAD DRIVE
IC181
OSCI
XBCK
LRCK
VC
VC
PEAK
&
BOTTOM
TRK–
TRK+
FSC+
FSC–
SLED+
SLED–
SPDL+
SPDL–
DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR
EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC121
SCTX
XINT
XINT
ADDT
DADT
SQSY
DQSY
MNT3
MNT2
MNT1
MNT0
MNT1
MNT0
SENS
SRDT
SRDT
SCLK
SWDT
XLATCH
SWDT
XLATCH
LDON
WRPWR
MOD
DIG-RST
100
49 • 48 • 50 • 51
34 31 • 36 40 • 45
D0
D3
A00
A09
47
46
3
4
17
16
1
2
18
19
6
9
11
15
5
XWE
XRAS
XCAS
XCAS
XOE
DQ1
DQ4
•
•
•
•
A0
A9
44
43
20
XWE
XRAS
XCAS
XOE
•
SHOCK
RESISTANT
MEMORY
CONTROLLER
8
•
11
10
•
13
9
•
12
4
5
DIGITAL
AUDIO
I/F
BD (MD)
SECTION (2/2)
(Page 41)
D
• SIGNAL PATH
: MD PLAY
: MD REC (ANALOG)
: MD REC (DIGITAL)
: MD PLAY
: MD REC (ANALOG)
: MD REC (DIGITAL)
CONTROL
Q162, 163
LEVEL SHIFT
IC202 (1/2)
DIVIDER
IC123
BD (CD)
SECTION
A
DOUT
(Page 39)
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