Sony ICF-CDK70 Service Manual ▷ View online
ICF-CDK70
33
• IC Pin Function Description
MAIN BOARD IC801 MB90802PF-G-124E1 (SYSTEM CONTROLLER)
MAIN BOARD IC801 MB90802PF-G-124E1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-TU-DO
O
Serial data output to the FM/AM PLL
2
O-TU-CE
O
Chip enable signal output to the FM/AM PLL "L": active
3
I-CD-LIMSW
I
Detection input from the sled limit-in detect switch
The optical pick-up is inner position when "L"
The optical pick-up is inner position when "L"
4
I-CD-BUSY
I
Busy signal input from the CD DSP
5
O-CD-DIN
O
Serial data output to the CD DSP
6
O-CD-MCK
O
Serial data transfer clock signal output to the CD DSP
7
I-CD-DOUT
I
Serial data input terminal
8
O-CD-RW
O
Data read/write selection signal output to the CD DSP
9
I-RMC
I
Remote control signal input from the remote control receiver
10
O-POWER CD
O
CD power on/off control signal output terminal "H": CD power on
11
O-AMP STANDBY
O
Output control signal output to the power amplifi er
12
O-4.5V CE
O
Not used
13
X0A
I
Sub system clock input terminal (32.768 kHz)
14
X1A
O
Sub system clock output terminal (32.768 kHz)
15
VCC
-
Power supply terminal (+3.3V)
16
VSS
-
Ground terminal
17
O-CD-XRST
O
System reset signal output to the CD DSP "L": reset
18
O-MO2-
O
Motor drive signal (-) output terminal for CAM rotation
19
O-MO2+
O
Motor drive signal (+) output terminal for CAM rotation
20
O-MO1-
O
Motor drive signal (-) output terminal for drawer movable
21
O-MO1+
O
Motor drive signal (+) output terminal for drawer movable
22
O-A MUTE
O
Audio muting on/off control signal output terminal "H": muting on
23
O-BUZZER
O
Buzzer drive signal output terminal
24
O-BASS BOOST OFF
O
Not used
25
I-TRSW3
I
CD switch (SW3) input terminal
26
I-TRSW1
I
CD switch (SW1) input terminal
27
I-TRSW7
I
CD chuck switch (SW7) input terminal
28
I-TRSW2
I
CD switch (SW2) input terminal
29
I-TRSW6
I
CD close switch (SW6) input terminal
30
I-TRSW5
I
CD stock switch (SW5) input terminal
31
I-TRSW8
I
CD open switch (SW8) input terminal
32
AVCC
-
Power supply terminal (+3.3V) (for A/D converter)
33
O-VOL-DATA
O
Serial data output to the electrical volume
34
O-VOL-CLK
O
Serial data transfer clock signal output to the electrical volume
35
AVSS
-
Ground terminal (for A/D converter)
36
I-REG6.0V-CHK
I
Input terminal for +6V power supply voltage detection
37
I-REG4.5V-CHK
I
Input terminal for +4.5V power supply voltage detection
38 to 40
I-KEY0 to I-KEY2
I
Front panel key input terminal (A/D input)
41
I-REG3.3V-CHK
I
Input terminal for CD +3.3V power supply voltage detection
42
I-AC IN
I
Not used
43
I-CD-SUBSYQ
I
Subcode Q data (80 bit serial) input from the CD DSP
44
VSS
-
Ground terminal
45 to 47
I-SUFFIX 0 to
I-SUFFIX 2
I
Input terminal for destination discrimination
48
I-BASS BOOST ON/
OFF
I
MEGA BASS switch input terminal "L": MEGA BASS on, "H": MEGA BASS off
49, 50
I-ENCODER +,
I-ENCODER -
I
Jog dial pulse input from the rotary encoder (VOLUME)
51 to 53
MD2 to MD0
I
Input terminal for fl ash writing mode setting
54
I-RESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
55 to 57
O-DISC1KEY LED to
O-DISC3KEY LED
O
LED drive signal output terminal
58
VLCD
I
Input terminal for liquid crystal display drive voltage setting
59 to 62
COM4 to COM1
O
Common drive signal output to the liquid crystal display
ICF-CDK70
34
Pin No.
Pin Name
I/O
Description
63, 64
SEG0, SEG1
O
Segment drive signal output to the liquid crystal display
65
VCC
-
Power supply terminal (+3.3V)
66
VSS
-
Ground terminal
67 to 81
SEG2 to SEG16
O
Segment drive signal output to the liquid crystal display
82 to 84
NC
O
Not used
85
O-TIMER LED
O
LED drive signal output terminal
86, 87
I-ENCODER-TIMER+,
I-ENCODER-TIMER-
I
Jog dial pulse input from the rotary encoder (TIMER)
88, 89
NC
O
Not used
90
VCC
-
Power supply terminal (+3.3V)
91
VSS
-
Ground terminal
92
X1
O
Main system clock output terminal (4.19 MHz)
93
X0
I
Main system clock input terminal (4.19 MHz)
94
O-CLK-SHIFT AM
O
Oscillation frequency selection on/off control signal output terminal for AM "H": selection on
95
O-CLK-SHIFT FM
O
Oscillation frequency selection on/off control signal output terminal for FM "H": selection on
96
O-POWER AUDIO IN
O
Not used
97
O-POWER TUNER
O
Tuner power on/off control signal output terminal "H": power on
98
O-TU-MUTE
O
Tuner muting on/off control signal output to the FM/AM PLL "H": muting on
99
I-TU-DI
I
Serial data input to the FM/AM PLL
100
O-TU-CLK
O
Serial data transfer clock signal output to the FM/AM PLL
35
ICF-CDK70
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice.
vice.
Some delay should be anticipated when
ordering these items.
• Accessories are given in the last of the
electircal parts list.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
R
R
Parts of Color Cabinet’s Color
• Abbreviation
CND: Canadian model
CND: Canadian model
7-1. CABINET (UPPER) SECTION
1
2-893-517-01 COVER
(TRAY)
2
3-254-151-01 SCREW (B2.6), (+) P TAPPING
3
3-254-140-01 SCREW (B2.6), (+) BV TAPPING
4
3-252-831-01 SCREW (M2.6), (+) P
5
2-893-513-01 CABINET (UPPER) (US)
5
2-893-513-11 CABINET (UPPER) (CND)
6
2-893-490-01 KNOB
(MEGA
BASS)
7
A-1224-512-A JACK BOARD, COMPLETE
8
3-254-081-01 SCREW
9
2-893-521-01 HOLDER
(AUDIO
IN)
10
A-1224-514-A MEGA BASS BOARD, COMPLETE
11
3-254-070-01 SCREW
12
3-208-071-01 CUSHION (SP BOX)
13
3-208-071-11 CUSHION (SP BOX)
The components identifi ed by mark
0
or dotted line with mark
0 are critical for
safety.
Replace only with part number specifi ed.
Replace only with part number specifi ed.
Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifi é.
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifi é.
1
cabinet (front) section
cabinet (lower) section
CD mechanism deck section
(DLM3A23-11)
(DLM3A23-11)
2
2
2
2
3
3
3
3
3
3
3
4
13
5
6
7
8
8
9
10
11
11
13
13
13
12
36
ICF-CDK70
51
X-2177-115-1 CABINET (FRONT) SUB ASSY
52
2-896-916-01 CUSHION
(A)
53
2-893-489-01 KNOB
(ALARM)
54
3-254-070-01 SCREW
55
2-893-488-01 KNOB
(VOL)
56
2-637-764-01 CUSHION
(TRAY)
57
A-1224-496-A LCD BOARD, COMPLETE
58
2-893-506-01 CASE (LCD), SHIELD
59
2-896-914-01 SHEET,
DIFFUSION
60
2-893-495-01 PLATE (LCD), LIGHT GUIDE
61
2-893-522-01 HOLDER
(LCD)
62
1-833-883-21 CABLE, FLEXIBLE FLAT (14 CORE)
63
1-833-882-21 CABLE, FLEXIBLE FLAT (12 CORE)
64
3-254-081-01 SCREW
65
A-1224-501-A TIMER BOARD, COMPLETE
66
1-833-902-21 CABLE, FLEXIBLE FLAT (4 CORE)
67
2-893-520-01 HOLDER
(ALARM)
68
2-893-519-01 HOLDER
(VOL)
69
A-1224-506-A VOL BOARD, COMPLETE
70
1-831-772-21 CABLE, FLEXIBLE FLAT (9 CORE)
71
A-1224-508-A KEY BOARD, COMPLETE
72
3-885-228-01 CUSHION
(B)
73
3-577-414-01 SPACER
74
3-097-771-01 SHEET (B), LIGHT INTERCEPTION
75
3-208-071-01 SHEET
(LCD)
76
A-1224-499-A REMOTE CONTROL BOARD, COMPLETE
LCD401 1-802-382-11 DISPLAY PANEL, LIQUID CRYSTAL
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
7-2. CABINET (FRONT) SECTION
51
not supplied
not supplied
not supplied
not supplied
LCD board
TIMER board
LCD401
52
53
54
54
76
54
54
73
73
73
73
55
56
57
58
59 60
61
62
63
64
64
64
64
64
64
64
65
66
67
68
69
70
75
74
71
72
72
72
72
72
72
Ver. 1.1
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