Sony ICF-CD7000 Service Manual ▷ View online
29
ICF-CD7000
– VOL Board –
IC301 R2S15904SP
24
23
22
MCU
I/F
TONE CONTROL
L-CH BASS/TREBLE
SURROUND
21
20
25
26
27
28
INR4
LOUT
ROUT
AGND
VCC
REFIN
DATA
CLK
DGND
TRER
TREL
NC
BASSL2
NC
INR3
INPUT
SELECTOR
INPUT
SELECTOR
INPUT GAIN
CONTROL
INPUT GAIN
CONTROL
MUTE
MUTE
REF
MODE
SELECTOR
VOLUME
VOLUME
INR2
INR1
INL1
INL2
INL3
INL4
IGOUTL
VOLINL
IGOUTR
VOLINR
BASSR1
BASSL1
BASSR2
19
18
17
16
15
1
2
3
5
6
7
8
9
4
10
11
12
13
14
TONE CONTROL
R-CH BASS/TREBLE
1
7
8
9
10
11
12
3
4
+
–
+
–
VCC1
CH-1
CH-2
OUTPUT1
BOOT STRAP1
PRE GND
NF1
INPUT1
VCC2
OUTPUT2
BOOT STRAP2
RIPPLE
NF2
INPUT2
2
5
6
– AMP Board –
IC351 UTC8227 S
30
ICF-CD7000
•
IC Pin Function Description
MAIN BOARD IC801
µ
PD789478GC-A54-8BT-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
NC
-
Not used
3 to 5
VLC2 to VLC0
I
Input terminal for liquid crystal display drive voltage setting
6 to 9
COM0 to COM3
O
Common drive signal output to the liquid crystal display
10 to 37
SEG0 to SEG27
O
Segment drive signal output to the liquid crystal display
38
AVDD
-
Power supply terminal (+3.3V)
39
I-C-OPEN
I
CD lid open/close detect switch input terminal "L": CD lid is closed, "H": CD lid is opened
40
I-C-BUSY
I
Busy signal input from the CD DSP
41
I-VRSN
I
Input terminal for destination discrimination
42 to 45
KEY3 to KEY0
I
Front panel key input terminal (A/D input)
46
I-BTCHK
I
Battery voltage detection input terminal
47
AVSS
-
Ground terminal
48
O-NPNP
O
Buzzer power supply on/off control signal output terminal
49
I-ACIN
I
AC in detect signal input terminal "H": AC in
50
I-OFF/
ALARM RESET
I
Front panel key input terminal (A/D input)
51
I-C-SUBSYQ
I
Subcode Q data (80 bit serial) input from the CD DSP
52
O-BUZ
O
Buzzer drive signal output terminal
53
I-C-DAT
I
Serial data input from the CD DSP
54
O-C-DAT
O
Serial data output to the CD DSP
55
O-C-MCK
O
Serial data transfer clock signal output to the CD DSP
56
O-C-RW
O
Data read/write selection signal output to the CD DSP
57
O-C-RSTX
O
System reset signal output to the CD DSP "L": reset
58
O-C-BTCHK
O
Battery detection signal output terminal
59
O-P-ON
O
Main power on/off control signal output terminal "H": power on
60
O-AMUT
O
Audio muting on/off control signal output terminal "H": muting on
61
O-V-DAT
O
Serial data output to the electrical volume
62
O-V-CLK
O
Serial data transfer clock signal output to the electrical volume
63
O-R-CE
O
Chip enable signal output to the FM/AM PLL "L" active
64
O-R-DAT
O
Serial data output to the FM/AM PLL
65
O-R-CLK
O
Serial data transfer clock signal output to the FM/AM PLL
66
I-R-COUNT
I
Serial data input to the FM/AM PLL
67
ATS1
O
Serial data output terminal for ATS
68
ATS2
O
Serial data transfer clock signal output terminal for ATS
69
IC
-
Not used
70
XT1
I
Sub system clock input terminal (32.768 kHz)
71
XT2
O
Sub system clock output terminal (32.768 kHz)
72
VDDO
-
Power supply terminal (+3.3V)
73
VSSO
-
Ground terminal
74
X1
I
Main system clock input terminal (4.19 MHz)
75
X2
O
Main system clock output terminal (4.19 MHz)
76
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"
77
O-BRGHT-M
O
Brightness control signal output terminal (middle)
78
O-BRGHT-H
O
Brightness control signal output terminal (high)
79
O-R-ON
O
Tuner power on/off control signal output terminal "L": tuner power on
80
O-C-ON
O
CD power on/off control signal output terminal "L": CD power on
31
ICF-CD7000
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
2-894-743-01 PANEL (UPPER) (for WHITE, BLACK)
1
2-894-743-11 PANEL (UPPER) (for BEIGE)
2
3-262-705-01 SCREW, HEXAGON HOLE TAPPING
3
3-262-705-21 SCREW, HEXAGON HOLE TAPPING
4
3-252-827-01 SCREW (B2.6), (+) BV TAPPING
(for WHITE, BEIGE)
4
3-254-151-01 SCREW (B2.6), (+) P TAPPING (for BLACK)
5
2-894-746-01 BUTTON (SNOOZE) (SNOOZE/BRIGHTNESS)
(for ORIGINAL)
5
2-894-746-11 BUTTON (SNOOZE) (SNOOZE/BRIGHTNESS)
(for HOTEL)
6
3-246-344-11 FOOT, RUBBER
7
2-894-755-01 CASE (BATTERY) (WHITE)
7
2-894-755-11 CASE (BATTERY) (BLACK)
7
2-894-755-21 CASE (BATTERY) (BEIGE)
8
3-254-151-01 SCREW (B2.6), (+) P TAPPING
9
3-197-626-01 SHEET (ILLUMINATION)
10
3-209-535-01 SHEET (SNOOZE)
BT301
1-528-174-51 BATTERY, LITHIUM (CR2032 TYPE)
7-1.
PANEL (UPPER) SECTION
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
•
Abbreviation
CND : Canadian model
IT
CND : Canadian model
IT
: Italian model
RU
: Russian model
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
•
Refer to “COLOR VARIATION” in the
“SERVICING NOTES” (page 3) about color
variation of destination.
“SERVICING NOTES” (page 3) about color
variation of destination.
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 0
sont critiquens pour la sécurité.
Ne les remplacer que par une pièce portant le
numéro spécifié.
sont critiquens pour la sécurité.
Ne les remplacer que par une pièce portant le
numéro spécifié.
1
CD lid section
cabinet (rear) section
BT301
2
3
3
4
9
4
4
5
6
10
10
7
8
8
Ver. 1.2
Note: Please refer to Ser vicing Notes “HOW TO
DISTINGUISH MODEL FOR ORIGINAL AND FOR
HOTEL” (page 3) when exchanging Ref. No. 5.
HOTEL” (page 3) when exchanging Ref. No. 5.
32
ICF-CD7000
7-2.
CD LID SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
2-894-745-01 PANEL (CD LID) (for ORIGINAL)
51
2-894-745-11 PANEL (CD LID) (for HOTEL)
52
2-894-744-01 BASE (CD LID) (for WHITE, BEIGE)
52
2-894-744-11 BASE (CD LID) (for BLACK)
53
3-254-070-01 SCREW
54
A-1234-442-A RELAY BOARD, COMPLETE
55
3-254-151-01 SCREW (B2.6), (+) P TAPPING
56
3-047-468-11 DAMPER
57
3-265-479-01 CUSHION (OP)
58
2-894-753-01 INSULATOR (SPRING)
59
2-899-052-01 SPRING (INSULATOR)
60
2-894-763-01 SCREW, FLOATING
0 61
A-1181-167-A CD MECHANISM DECK BLOCK (CDM-3525)
62
2-894-757-01 HOLDER (CD)
63
2-894-772-01 SPRING (CD)
64
3-252-828-01 SCREW (B2.6), (+) PWH TAPPING
65
1-833-909-21 CABLE, FLEXIBLE FLAT (14 CORE)
66
A-1234-445-A CD BOARD, COMPLETE
67
1-833-907-21 CABLE, FLEXIBLE FLAT (19 CORE)
51
cabinet (upper) section
52
53
53
54
55
55
55
55
56
57
58
59
60
58
59
60
58
59
60
61
62
63
64
65
66
67
Ver. 1.2
Note: Please refer to Servicing Notes “HOW TO
DISTINGUISH MODEL FOR ORIGINAL AND FOR
HOTEL” (page 3) when exchanging Ref. No. 51.
HOTEL” (page 3) when exchanging Ref. No. 51.
Click on the first or last page to see other ICF-CD7000 service manuals if exist.