Sony CFD-C1000 Service Manual ▷ View online
– 13 –
FM FREQUENCY COVERAGE
CHECK
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
2.0 ± 0.2 V
7.3 ± 0.1 V
Adjustment Part
<confirmation> <confirmation>
FM TRACKING CHECK
Adjust for a maximum reading on level meter.
<confirmation>
<confirmation>
87.5 MHz
108 MHz
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
530 kHz
1,710 kHz
Reading on Digital voltmeter
1.2 ± 0.1 V
7.5 ± 0.2 V
Adjustment Part
L5
<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4
TC2
620 kHz
1,400 kHz
Adjustment Location: See page 14.
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
BAND switch: FM
BAND switch: FM
22.5 kHz frequency
deviation by 1 kHz signal
Output level : as low as possible
deviation by 1 kHz signal
Output level : as low as possible
• AM Section
Setting:
BAND switch: AM
BAND switch: AM
30% amplitude
modulation by 400 Hz signal
Output level : as low as possible
modulation by 400 Hz signal
Output level : as low as possible
• Connecting Level Meter (FM and AM)
antenna terminal
FM RF signal
generator
generator
0.01
µ
F
set
digital
voltmeter
voltmeter
100 k
Ω
TP1 (VT)
PHONES jack (JK302)
set
32
Ω
level meter
(range: 0.5-5 V ac)
(range: 0.5-5 V ac)
Put the lead-wire
antenna close to
the AM loop
antenna.
antenna close to
the AM loop
antenna.
AM RF signal
generator
generator
• Connecting Digital Voltmeter (FM and AM)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
– 14 –
C733
C701
R738
C752
R
726
R777
C702
C705
R721
R701
C757
C718A
C706
C703
C704
C736
C707
R728
C731
R
R778
R707
Q701
R705
R706
R716
R714
R717
R715
S301
RESET
R713
R718
R704
R736
TP (RFO)
IC701
1
14
26
27
39
40
55
56
B
C
E
TP (RFO)
– main board (conductor side) –
Adjustment Location: main board
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 between IC701 pin #£ (TP RFO) and
GND on Main 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 ( ) in the
center of the waveform can be clearly distinguished.
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)
π
Test Point:
RF level :
1.3
1.3
±
0.5 Vp-p
VOLT/DIV : 200 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
and raise vertical sensitivity.
IC2
IC3
FE1
L5
AM
FREQUENCY
COVERAGE
ADJUSTMENT
AM
FREQUENCY
COVERAGE
ADJUSTMENT
AM
TRACKING
ADJUSTMENT
TRACKING
ADJUSTMENT
T2
AM
IF
ADJUSTMENT
AM
IF
ADJUSTMENT
TC2
L4
TP1
(VT)
(VT)
– main board (component side) –
5-1. IC PIN DESCRIPTION
• IC801 CXP83232A-013Q (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
AC CHK
I
AC power detect (L: AC power on)
2
SCOR
I
CD SCOR input
3
RMC
I
Sircs receiver input
4
SCL
O
Volume serial chip enable output
5
NC
—
Not used
6
SENS2
I
CD SENSE2 input
7
XLAT
O
CD serial latch output
8
CLOK
O
CD serial clock output
9
NC
—
Not used
10
DATA
O
CD serial data output
11
SQCK
O
CD Sub-Q read clock output
12
SQSO
I
CD Sub-Q data input
13
SENS
I
CD SENSE1 input
14
CLOK
O
CD motor clock output
15
CE OUT
O
Tuner PLL chip enable output
16
DO IN
I
Tuner PLL data input
17
DATA OUT
O
CD motor data output
18
STB OUT
O
CD motor standby signal output
19
NC
—
Not used
20
REC BEAT CONTROL
O
ISS control signal output (H: 1, L: 2)
21
MEGA BASS
O
Mega bass control signal output (L: Mega bass on)
22
SDA
O
Volume serial data output
23
LED VDD
O
LED power control signal output (L: LED power on)
24
TURN TABLE SW IN
I
Turn table switch input
25
DISC NO. SW IN
I
Disc No. switch input
26
TRAY OPEN SW IN
I
CD tray open switch input
27
TRAY CLOSE SW IN
I
CD tray close switch input
28
TRAVERSE UP SW IN
I
CD mechanism up switch input
29
TRAVERSE DOWN SW IN
I
CD mechanism down switch input
30 – 33
KEY1 – 4
I
key input
34
REC
I
Tape record signal input
35
MODE SW
O
Mode set pin
36
SFC
O
Shift clock on/off output
37
FM STEREO IN
I
Tuner stereo signal input
38
RESET
I
System reset input (L: Reset)
39
EXTAL1
I
Oscillation input (4.19 MHz)
40
XTAL1
O
Oscillation output (4.19 MHz)
41
VSS
—
GND
42
NC
—
Not used
43
VSS
—
GND
44
AVREF
—
Reference voltage input
45
AVSS
—
GND
46
VL
—
LCD drive bias VDD
47 – 49
VLC3 – 1
I
LCD drive bias 3 – 1
50 – 53
COM0 – 3
O
LCD drive common output
54 – 80
SEG0 – 26
O
LCD drive segment output
81
NC
—
Not used
82
POWER SW OUT
O
Power AMP control signal output (H: Power amp on)
83
SYSTEM MUTE
O
Audio signal mute output (H: Mute)
84
TUNER MUTE
O
Tuner signal mute output (H: Mute)
85
CD MUTE
O
CD signal mute output (H: Mute)
SECTION 5
DIAGRAMS
5-2. CIRCUIT BOARDS LOCATION
– 15 –
– 16 –
Pin No.
Pin Name
I/O
Pin Description
86
CD LED
O
LED (CD) drive signal/CD function signal output (H: CD)
87
TAPE LED
O
LED (TAPE) drive signal output (H: LED on)
88
RADIO LED
O
LED (RADIO) drive signal/Radio function signal output (H: Radio)
89
VDD
—
Power supply pin (+5 V)
90
VDD NC
—
Power supply pin (+5 V)
91
VSS
—
GND
92
TX
O
Oscillation output (32.768 kHz)
93
TEX
I
Oscillation input (32.768 kHz)
94 – 96
LED1 – 3
O
LED (DISC1 – 3) drive signal output (H: LED on)
97
LCD BACK LIGHT
O
LCD back light control signal output (H: Lamp on)
98
MOTOR CONT OUT
O
Motor control signal output (H: Motor on)
99
TC A
I
Tape play switch input (L: Deck A on)
100
TC B
I
Tape play switch input (L: Deck B on)
MOTOR board
AC board
SWITCH (A) board
SWITCH (B) board
SWITCH (C) board
SWITCH (D) board
POWER board
MAIN board
REMOCON board
DISPLAY board
MD board
HEADPHONE board
LCD board
DISC board
LAMP board
CD MOTOR board
CD LAMP board
CFD-C1000
– 17 –
– 18 –
5-3. BLOCK DIAGRAM — CD SECTION —
M
38
33
35
18
11
10
12
13
14
79
23
20
21
22
26
25
24
• Signal path
• R-ch : same as L-ch.
: CD
27
PD1
RF AMP
FE AMP
39
36
37
PD2
LD
PD
E
F
VC
42
41
51
3
4
5
13
LD DRIVE
Q701
LASER
DIODE
CONTROL
SERIAL/
PARALLEL
CONVERTER
DECODER
RF O
FOK
C. OUT
SENS1
SENS2
IIL
TTL
DATA
XLT
CLK
XRST
TTL
IIL
TRACKING
PHASE
FOCUS
PHASE
PHASE
COMMAND
6
16
7
57
4
5
6
15
21
8
9 62
65
67
TAO
FEO
SLO
RF AMP, SERVO CONTROL
IC701
DIGITAL SIGNAL PROCESSOR
IC702
VREF
TRACKING
COIL
DRIVE
2
1
6
10
22
21
28
FOCUS
COIL
DRIVE
18
17
SLED
MOTOR
DRIVE
20
19
SPINDLE
MOTOR
DRIVE
30
31
TRAY
MOTOR
DRIVE
29
13
12
12
13
7
14
6
3
2
1
14
13
TT
MOTOR
DRIVE
CN702
CNP707
CN701
TRACKING
COIL
FOCUS
COIL
A
4
3
3
5
6
1
2
C
B
D
E
F
LD
PD
OPTICAL PICK-UP
BLOCK
(KSS-213C)
M
M702
(SLED)
M703
(TRAY)
M
S04
(MOVE)
S01
(CD UP/DOWN)
S02
(OPEN/CLOSE)
OPEN CLOSE
S03
(DISC COUNTER)
M
M701
(SPINDLE)
RF
FOK
CNIN
SEIN
DATO
XLTO
CLKO
XRST
MDP
SPOA
SENS
SQSO
SQCK
SCOR
DATA
XLAT
CLOK
SYSM
XTAI
XTAO
SERVO
AUT
SEQ.
EFM DEMODULATOR
SERIAL
INTERFACE
D/A
INTERFACE
SUB CODE
PROCESSOR
CPU INTERFACE
DIGITAL
CLV
S701
(LIMIT)
70
•
71
XTL1
16.9344MHz
DIGITAL
FILTER
&
D/A
CONVERTER
AOUT1
LOUT1
76
74
AOUT2
LOUT2
CD L-CH
R-CH
1
MAIN
SECTION
PWM
AMP
PWM
AMP
04
5
7
6
4
12
14
15
13
16
3
8
10
TRAY+
TRAY–
TRAY–
TT+
TT–
TT–
DATAI
CLOCK
XRST
STB
4
5
2
1
5
7
6
4
12
14
15
13
16
3
8
10
4
3
5
6
1
2
2
8
7
7
4
5
2
1
1
2
5
3
CN5
CN707
CN6
CN706
1
2
5
3
28
29
29
26
27
27
6
18
17
14
13
12
11
2
10
7
8
85
24
25
25
X801
4.19MHz
X802
32.768kHz
92
93
3
39
40
97
31
32
30
88
87
86
82
96
95
94
SENS2
CD MUTE
CD MUTE
XLAT
CLOK
DATA
LED1
LED2
LED3
LCD
BACK LIGHT
SQCK
SQSO
SCOR
CD LED
POWER SW
OUT
TAPE LED
RADIO LED
STB OUT
DATA OUT
CLOK
SENS
TURN TABLE SW
IN
DISC ON SW IN
IN
DISC ON SW IN
UP SW IN
DOWN SW IN
OPEN SW IN
CLOSE SW IN
KEY1
KEY2
KEY3
KEY4
REM
TX
TXE
EXTAL1
XTAL1
36
SFC
33
13
15
14
16
5
6
4
3
2
1
12
7
17
+B
LAMP
LAMP
+9.5V
13
4
3
2
7
8
4
3
2
2
7
8
15
14
16
5
6
4
3
2
1
12
7
17
LAMP POWER
CONTROL
Q809,810
+5V
+7.5V
+5V REG
Q703
LED
DRIVE
Q803-805,809
KEY
MATRIX
S801-824
OSC
CONTROL
Q801,802
LED
DRIVE
Q806-808
KEY
MATRIX
S826-830
TURN TABLE
LAMP
LP804
2
RO
RM801
CN803A
CN803B
CN805
CN804
CN804
CN805
2
LP804
CN806
CN806
2
2
TRAVERSE
TRAY
SYSTEM CONTROL
IC801 (1/2)
1
5
IC705
MOTOR CONTROL
IC704
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC703
M704
TABLE
ROTATE
MAIN BOARD (1/2)
CD LAMP BOARD
DISC BOARD
REMOCON BOARD
MOTOR
BOARD
BOARD
CD MOTOR
BOARD
BOARD
DISPLAY
BOARD
BOARD
SWITCH (D)
BOARD
BOARD
DOWN UP
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