Sony ICF-CD825RM Service Manual ▷ View online
– 36 –
•
MICON BOARD IC651
µ
PD754302-081-T1 (KEY DECODER)
Pin No.
Pin Name
I/O
Function
1
VSS
—
Ground terminal
2
X1
I
Main system clock input terminal (4 MHz)
3
X2
O
Main system clock output terminal (4 MHz)
4
RESET
I
System reset signal input from the reset signal generator (IC652) “L”: reset
“L” is input for several 100 msec after power on, then it changes to “H”
“L” is input for several 100 msec after power on, then it changes to “H”
5 to 8
P33 to P30
I
Not used (fixed at “L”)
9, 10
PB1, PB0
I
Not used (fixed at “L”)
11 to 13
P23 to P21
O
Not used (open)
14
P20
I
Not used (fixed at “L”)
15
P03
I
Not used (fixed at “L”)
16
P02
O
Serial data output terminal Not used (open)
17
P01
O
Serial data transfer clock signal output terminal Not used (open)
18
P00
I
Not used (fixed at “L”)
19
IC
I
Connected to power supply (+5V)
20
VDD
—
Power supply terminal (+5V)
21
DATA
I
Remote control data input from the CXA1019M (IC601) on RX board
22 to 24
P11 to P13
I
Not used (fixed at “L”)
25
P73
I
Not used (fixed at “L”)
26
P72
O
OK out terminal Not used (open)
27, 28
P71, P70
I
Not used (fixed at “L”)
29 to 32
P63 to P60
I
Not used (fixed at “L”)
33
CD
O
Key control signal output of the remote control unit (RM-RW1) CD
( P key out
34
SNZ
O
Key control signal output of the remote control unit (RM-RW1) SNOOZE/SLEEP OFF key out
35
OFF
O
Key control signal output of the remote control unit (RM-RW1) OFF ALARM RESET key out
36
RAD
O
Key control signal output of the remote control unit (RM-RW1) RADIO SLEEP key out
– 37 –
•
TX BOARD IC701
µ
PD63GS-G02-T1 (KEY DATA TRANSMIT CONTROLLER)
Pin No.
Pin Name
I/O
Function
1
TX OUT
O
Transmit control signal output terminal Used for the TX system power supply control
2
KI/O7
O
Setting terminal for the test mode
3
SO
I
Setting terminal for the test mode Connected to 2 and 3 pins: test mode
4
SI/LED
I
Remote control data output terminal
5
REM
O
Not used (open)
6
VDD
—
Power supply terminal (+3V)
7
X OUT
O
Main system clock output terminal (4 MHz)
8
X IN
I
Main system clock input terminal (4 MHz)
9
GND
—
Ground terminal
10
RESET
I
System reset signal input terminal “L”: reset
11
CD
I
Key input terminal CD
( P key input (S701)
12
RADIO
I
Key input terminal RADIO SLEEP key input (S702)
13
OFF
I
Key input terminal OFF ALARM RESET key input (S703)
14
SNOOZE
I
Key input terminal SNOOZE/SLEEP OFF key input (S704)
15
COM
O
Key send signal output terminal
16 to 20
KI/O1 to KI/O5
O
Not used (open)
– 38 –
SECTION 6
EXPLODED VIEWS
Les composants identifiés par une
marque
marque
! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark
mark
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
(1) CABINET SECTION
1
3-021-532-41 WINDOW (LCD)
2
3-021-528-21 PANEL, FRONT
3
3-910-112-01 PLATE, CHUCKING
4
1-452-732-11 MAGNET
5
3-021-529-21 LID, CD
6
3-021-535-01 WINDOW (CD)
7
3-026-560-01 CUSHION (D)
8
3-021-821-01 SPRING (CD LID)
9
3-351-377-11 DAMPER
10
3-021-526-01 CABINET (UPPER)
11
2-532-810-00 CUSHION, 15X5X0.3
12
3-831-441-99 SHEET (1)
13
3-021-531-01 BUTTON
* 14
1-668-915-12 KEY BOARD
* 15
3-026-564-01 SPACER (A)
16
3-368-852-01 FOOT
* 17
3-026-565-01 SPACER (B)
* 18
3-026-566-01 SPACER (C)
19
1-775-826-11 CORD, CONNECTION
SP101
1-504-460-11 SPEAKER (7.7CM) (L-CH)
SP201
1-504-460-11 SPEAKER (7.7CM) (R-CH)
6
7
5
4
3
2
1
17
15
15
18
11
12
19
14
13
12
11
10
9
8
17
#2
#1
#1
#1
#1
#1
#2
#1
#1
16
SP101, 201
not supplied
not
supplied
supplied
A
A
– 39 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
(2) MAIN BOARD SECTION
51
3-021-534-01 POINTER
* 52
1-670-256-12 MICON BOARD
* 53
1-668-917-12 POWER BOARD
! 54
1-769-339-22 CORD, POWER
55
1-769-824-11 WIRE (FLAT TYPE) (16 CORE)
* 56
3-021-530-01 CHASSIS
* 57
1-668-916-12 SWITCH BOARD
58
3-910-116-01 COVER, CD
59
3-910-095-11 RUBBER, VIBRATION PROOF (GREEN)
60
3-910-095-01 RUBBER, VIBRATION PROOF (RED)
61
3-910-096-01 SCREW (2.6X10), +PWH TAPPING
* 62
1-668-918-12 MOTOR BOARD
* 63
A-3679-987-A MAIN BOARD, COMPLETE (Canadian)
* 63
A-3683-001-A MAIN BOARD, COMPLETE (US)
64
3-928-285-01 KNOB (VOL)
65
3-928-284-01 KNOB (TUN)
* 66
3-027-532-01 SHEET (UPPER), INSULATING
67
X-3376-135-1 SPRING (RX) SUB ASSY
* 68
3-027-583-01 SHEET (LOWER), INSULATING
* 69
A-3679-993-A RX BOARD, COMPLETE
70
3-021-527-01 CABINET (LOWER) (Canadian)
70
3-021-527-81 CABINET (LOWER) (US)
* 71
3-026-565-01 SPACER (B)
* 72
3-026-566-01 SPACER (C)
! T901
1-423-904-21 TRANSFORMER, POWER
The components identified by
mark
mark
! or dotted line with
mark
! are critical for safety.
Replace only with part num-
ber specified.
ber specified.
Les composants identifiés par une
marque
marque
! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Ne les remplacer que par une pièce
portant le numéro spécifié.
54
55
52
51
70
71
65
63
64
72
56
57
58
60
61
62
61
59
69
68
67
66
not supplied
not
supplied
supplied
not
supplied
supplied
KSM-213BAN
#4
#3
#1
#3
#4
#1
#3
#1
T901
A
A
53
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