Sony CFD-E95L Service Manual ▷ View online
17
CFD-E95L
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
In case of operation check, confirm that focus bias.
Focus Bias Check
1. Connect the oscilloscope to TP (RF) and TP (GND) on the CD
board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the
3. Press the
[ ]
button.
4. Confirm that the 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.
• RF signal reference waveform (eye pattern)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
0.85
±
0.2 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
Adjustment Location:
u
IC701
TP (GND)
TP
(RF)
– CD BOARD (Conductor Side) –
CFD-E95L
19
19
A
B
D
E
F
C
I-V AMP
DETECTOR
12
11
17
18
26
SL+
SL–
F–
F+
T+
T–
SPINDLE
MOTOR DRIVE
M701
(SPINDLE)
S701
(LIMIT)
SLED
MOTOR DRIVE
27
M702
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP+
SP–
3
25
9
19
FIN
TIN
SLIN
SPIN
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC701
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSS-213R)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
2
1
M
M
7
MUTE
AUTOMATIC
POWER
CONTROL
Q701
53 C-DOUT
52 C-WRQ
55 C-CLK
62 C-CE
54 C-DIN
64 C-XRT
63 C-FRQ
61 C-DRF
40
CD DOOR
S901
(Page 21)
A
SYSTEM CONTROLLER
IC801 (1/3)
R-CH
: CD PLAY (ANALOG OUT)
CD L-OUT
R-ch is omitted due to same as L-ch.
SIGNAL PATH
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
RF
10
9
80
7
79
4
8
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1
FSEQ
CONT4
DRF
RES
DI
CE
CL
WRQ
DO
XOUT
XIN
LCHO
RCHO
3
67
TDD
TD
FD
SP
SL
31
72 25
66
63 61 62
49
48
65 64
42
45
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC701
X701
16.9344MHz
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
D/A
CONVERTER
PH/BH
20
FDD
SPDO
SLDO
21 22 23
+
+
+
: CD PLAY (DIGITAL OUT)
DOUT
39
OPTICAL
DIGITAL OUT (CD)
OPTICAL
TRANSCEIVER
IC303
CD LID OPEN/CLOSE
DETECT
(
)
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD Section –
CFD-E95L
20
20
6-2.
BLOCK DIAGRAM – TUNER Section –
2
24
4
7
20
21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MPX
MUTE
STEREO/
MONO,
FM/AM
FM/AM
AM IF
AMP
FM
DET
AM
DET
DET
6
FM RF-
IN
IN
22
AM
RF AMP
MW BAND
SELECT SWITCH
Q14
AM
MIX
AM RF-
IN
IN
MIX-OUT
OSC-
OUT
CF2
FM/AM PLL
IC2
CF4
FM
RF-OUT
RF-OUT
10
QUAD
FM
IF-IN
IF-IN
12
15
11
L-OUT
MPX-
IN
IN
R-OUT
13
AM
IF-IN
IF-IN
LPF1/BAND
AM OSC
FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
L2
FM VCO VOLTAGE
L4
LW VCO VOLTAGE
CT1, L1
FM TRACKING
T1
AM IFT
LOW-PASS
FILTER
LOW-PASS
FILTER
: FM
: MW/LW
X1
75kHz
CT3
L1
FM RF
XOUT
XIN
AM IN
IF IN
ST
-IND
LP-OUT
LP-IN
FM IN
20
19
11
12
18
MW/L
W
6
CT1
D1
L4
MW/LW OSC
L2
FM OSC
LEVEL
DET
ST
IND
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
DET-
OUT
ANT1
FM TELESCOPIC
ANTENNA
PD
IF-OUT
ST
-IND
2
3
1
4
10
9
BAND
7
MO/ST
13
8
17
16
17
18
16
19
CT5
D2
D3
(1/2)
D3
(2/2)
AM HIGH
CUT
SWITCH
Q12
T1
AM IF
Q43
Q42
Q41
B+
Q41, 42
MW SWITCH
L3-1
MW
L3-2
LW
L3
MW/LW FERRITE-ROD
ANTENNA
MW
TRACKING
CT3, L3-1
LW
TRACKING
CT5, L3-2
Q44
LW
SWITCH
Q43
LW SWITCH
R-DATA
R-CLOCK
R-CE
R-COUNT
R-CH
(Page 21)
R-MUTE
TU L-OUT
(Page 21)
B
T2
FM IFT
T2
FM IF
D10
D11
D
(Page 21)
C
R-DATA, R-CLOCK,
R-CE, R-COUNT
+9V
D930
CONSTANT
CURRENT
Q61
R-ch is omitted due to same as L-ch.
SIGNAL PATH
CFD-E95L
21
21
REC/PB PRE AMP
IC301
POWER
AMP
IC304
: CD PLAY
: TUNER (FM/MW/LW)
: TAPE PLAY
: REC
: LINE IN
X802
4.19MHz
R-CH
L IN
L OUT
VREF
L.LO
MIC IN
L.CD
L.RAD
VREF
VREF
TC 6V
L.IN
L-CH
R-CH
LINE
TAPE
REC
45
44
R-DATA
R-CLK
R-LAT
R-COUNT
59
57
58
56
17 15 21
6
20
11
5
L.RO
4
22
24
13
TU L-OUT
R-CH
R-CH
R-CH
MUTE
MUTE
HRP301
(REC/PB)
HE301
(ERASE)
TAPE
36
REC
29
B
(Page 20)
(Page 19)
(Page 20)
C
PB
EQ AMP
MONITOR
AMP
5
POWER
AMP
STANDBY
SWITCH
MIC
AMP
REC
EQ AMP
BIAS OSC
Q301
WAKEUP
SWITCH
Q805
MODE CHECK
SWITCH
Q813
CD/LINE
SELECT
SWITCH
Q160, 161
REFERENCE VOLTAGE
GENERATOR
LOGIC CIRCUIT
DET
ALC
BUFFER
BUFFER
T301
BIAS OSC
SP2
(L-CH)
SP1
(R-CH)
J321
(PHONES)
X801
32.768kHz
XT2
XT1
71
70
X2
X1
75
WP/INI
50
MODE CHK
46
74
SYSTEM CONTROLLER
IC801 (2/3)
S301 (2/2)
(REC/PB)
ST
-BY
V-
D
ATA
V-
CLK
A-MUTE
8
78
77
66
REC
PB
S301 (1/2)
(REC/PB)
REC
PB
B-MUTE
60
(Page 20)
D
R-MUTE
(Page 22)
E
CD, LINE
CD
LINE
CD L-OUT
A
AF AMP
Q125
8
R-CH
LOGIC
CONTROL
4
5
7
ELECTRICAL VOLUME
IC302
Q122
MUTING
R-CH
M-BASS
68
51
JOG-A
67
JOG-B
ENCODER
RE401
S401 – 406,
408, 416
S407, 409 – 415
MEGA BASS
CONTROL
Q122
D323
D322
+9V
R-ch is omitted due to same as L-ch.
SIGNAL PATH
KEY1
KEY2
L-IN
L-OUT
DATA
CLK
Q303
Q302
Q302, 303
ISS SWITCHING
ISS2
37
ISS1
80
R-DATA
R-CLOCK
R-CE
R-COUNT
IF REQUEST
Q806
D802
– . > +
D801
J301
LINE IN
6-3.
BLOCK DIAGRAM – MAIN Section –
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