DOWNLOAD Sony ICF-CD825RM Service Manual ↓ Size: 870.09 KB | Pages: 39 in PDF or view online for FREE

Model
ICF-CD825RM
Pages
39
Size
870.09 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-cd825rm.pdf
Date

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”
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 
! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark 
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
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.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
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
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 
! or dotted line with
mark 
! are critical for safety.
Replace only with part num-
ber specified.
Les composants identifiés par une
marque 
!  sont critiques pour la
sécurité.
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
not
supplied
KSM-213BAN
#4
#3
#1
#3
#4
#1
#3
#1
T901
A
A
53
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