Sony CFD-E55L Service Manual ▷ View online
– 13 –
TUNER SECTION
0 dB=1
µ
V
[MW/LW]
Setting:
Function : RADIO
BAND button : MW or LW
Function : RADIO
BAND button : MW or LW
[FM]
Setting:
Function : RADIO
BAND button: FM
Function : RADIO
BAND button: FM
• Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca-
pacitors.
pacitors.
• Remove FM antenna in FM adjustment.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level: as low as possible
modulation by
400 Hz signal
Output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
3.2
Ω
MAIN board
CNP311 pin
CNP311 pin
3
MAIN board
CNP311 pin
CNP311 pin
4
FM RF signal
generator
22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible
deviation by 400 Hz
signal
Output level: as low as possible
+
–
–
level meter
MAIN board
CNP311 pin
CNP311 pin
3
MAIN board
CNP311 pin
CNP311 pin
4
set
3.2
Ω
0.01
µ
F
MAIN board
TP (GND)
TP (GND)
MAIN board
TP (ANT)
TP (ANT)
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
MAIN board
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
MW VCO VOLTAGE CONFIRMATION
Frequency Display
Reading on Digital Voltmeter
531 kHz
1.0 ± 0.3 V
1,611 kHz
5.0 ± 0.4 V
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3-1
621 kHz
CT2
1,404 kHz
LW VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
153 kHz
0.6
Confirmation
279 kHz
4.7 ± 0.5 V
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L3-2
162 kHz
CT3
261 kHz
FM VCO VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
108 MHz
4.0 ± 0.1 V
Confirmation
87.5 MHz
1.6 ± 0.2 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment Location: MAIN board (See page 14)
+ 0.1 V
– 0.05 V
– 0.05 V
– 14 –
Adjustment Location:
– MAIN BOARD (Component Side) –
T1
AM IF Adjustment
L1
CT1
CT1
FM Tracking
Adjustment
Adjustment
LW Tracking
Adjustment
Adjustment
MW Tracking
Adjustment
Adjustment
L2
FM VCO Voltage
Adjustment
L4
LW VCO Voltage
Adjustment
CT2
L3-1
L3-2
CT3
CNP311
1
4
TP (GND)
TP (VT)
TP (ANT)
– MAIN BOARD (Conductor Side) –
– 15 –
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 (RFO) 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
[ ]
(CD) 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
1.2
±
0.1 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:
TP (RFO)
IC701
TP (GND)
– CD BOARD (Conductor Side) –
u
CFD-E55L
– 17 –
– 18 –
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – CD Section –
A
B
D
4
7
6
4
7
6
F
E
C
I-V AMP
DETECTOR
39
38
17
18
26
27
2
SL+
SL–
SLO
F–
F+
T+
T–
SPINDLE
MOTOR DRIVE
M701
(SPINDLE)
S701
(LIMIT)
SLED
MOTOR DRIVE
1
M702
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP+
SPO
MUTE
SP–
9
15
14
3
19
25
FIN
TIN
SLIN
SPIN
SPI
SLP
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
16
14
SLED
AMP
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSS-213C)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
33
32
27
35
18
22
20
21
19
23
RF AMP,
FOCUS/TRACKING
SERVO
IC701 (1/2)
FOCUS OK
COMPARATOR
MIRR
AMP
DEFECT
AMP
FOCUS OK
AMP
IIL DATA REGISTER
31
29
FILTER
33
30
FILO
PCO
CLTV
FILI
XPCK
DIGITAL PLL
ASYMMETRY
CORRECTION
CORRECTION
EFM
DEMODULATOR
DIGITAL
OUT
ERROR
CORRECTOR
16K
RAM
INTERNAL BUS
SUB-CODE
PROCESSOR
OSC
CLOCK
GENERATOR
SERVO AUTO SEQUENCER
DIGITAL
CLV
14
12
41
43
39
13
79
5
4
6
7
9
8
57 58 59
62
70
11
10
41
42
36
37
1
40
45
2
47
12
11
6
25
24
13
PD1
PD1 I-V AMP
RFO
RF
37
ASYI
38
48
ASYO
FOK
DATO
CLKO
XLTO
SEIN
CNIN
MDP
SQSO
SQCK
SENS
DATA
CLOK
XLAT
XLON
SPOA
SCOR
SBSO
EXCK
XUGF
WFCK
EMPH
EMPHI
SYSM
XTAI
71
XTAO
RFI
FOK
DATA
CLK
SENS1
26
SENS2
C.OUT
XLT
LOCK
PD2 I-V AMP
PD2
TTL
IIL
FEO
TEO
PD
FEI
FEO
TAO
TEI
TTL
IIL
TTL
IIL
XRST
FOCUS
ERROR
AMP
RF
SUMMING
AMP
TRACKING
ERROR
AMP
TRACKING PHASE
COMPENSATION
FOCUS PHASE
COMPENSATION
AUTOMATIC
POWER CONTROL
Q701
I-V
AMP
LD
AMP
PD
AMP
FE BIAS
F
E
LD
PCMD
53
DOUT
BCK
LRCK
PCMDI
BCKI
LRCKI
42
44
40
50
C2PO
SLED SERVO
IC701 (2/2)
05
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC703
SYSTEM CONTROLLER
IC501 (1/3)
• SIGNAL PATH
: CD PLAY
21
CPU INTERFACE
D/A INTERFACE
SERIAL
INPUT
INTERFACE
PWM
PWM
OVER
SAMPLING
DIGITAL
FILTER
NOISE
SHAPER
56
54
55
AOUT2
65
XTSL
51
C4M
52
AOUT1
AIN2
AIN1
LOUT2
LOUT1
76
75
66
74
67
GFS
X701
16.9344MHz
49
47
8
3
8
3
10
12
10
12
14
15
14
15
13
16
13
16
5
5
CNP701
3
3
4
4
CNP702
CNP707
+
CD BOARD (1/2)
CD MOTOR BOARD
M
1
1
2
2
5
5
6
6
M
XRST
C-SCOR
C-DOOR
1
78
C-LA
TCH
11
C-CLOCK
10
C-DA
TA
12
C-SENS
5
C-SQCK
7
C-SQSO
8
9
C-SENS2
6
C-RST
C-SCOR
C-XLA
T
C-CLOK
C-DA
TA
C-SENS
C-SQCK
C-SQSO
C-SENS2
C-XRST
17 15
7
S701
(CD LID OPEN/CLOSE DET)
BH505
BH701 (1/2)
2
4
3
1
1
CNP703
7
4
5
6
8
1
3
2
9
BH503
7
4
5
6
8
1
3
2
9
R-CH
L-CH
B
TO MAIN
SECTION
SECTION
(Page 21)
FROM MAIN
SECTION
(Page 21)
C-MUTE
A
LCD BOARD (1/3)
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