Sony XDR-S20 Service Manual ▷ View online
17
XDR-S20
• IC Pin Function Description
MICRO COMPUTER BOARD IC503 MB90486BPF-G-165E1 (SYSTEM CONTROLLER)
MICRO COMPUTER BOARD IC503 MB90486BPF-G-165E1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
P20/SHIFT_CLK
O
Shift clock control signal output
2
P21/SHIMUKE1
I
Destination selection pin
3
P22/SHIMUKE2
I
Destination selection pin
4 to 8
P23 to 27
O
Not used (Open)
9
P30
O
Not used (Open)
10
P31
O
Not used (Open)
11
VSS
—
Ground
12
P32
O
Not used (Open)
13
LCD_RD/P33
O
Not used (Open)
14
LCD_WR/P34
O
Not used (Open)
15
LCD_A0/P35
O
LCD data/command exchange signal output
16
LCD_RES/P36
O
LCD driver RES control signal output
17
LCD_CS/P37
O
LCD driver CS control signal output
18
P40
O
Not used (Open)
19
P41
O
LCD serial data output
20
P42
O
LCD serial clock output
21
P43
O
Not used (Open)
22
P44
O
Not used (Open)
23
VCC5
—
Power supply (+3.3V)
24 to 26
P45 to 47
O
Not used (Open)
27
RXD/IN0
I
UART serial data input
28
TXD/SOT0
O
UART serial data output
29
CLK/SXK0
O
Not used (Open)
30
P73
O
Not used (Open)
31
P74
O
Mute signal output
32 to 34
P75 to 77
O
Not used (Open)
35
AVCC
—
Power supply (+3.3V) for A/D converter
36
AVRH
I
External reference power supply for A/D converter
37
AVSS
—
Ground for A/D converter
38
AN0
I
Key 0 input
39
AN1
I
Key 1 input
40
AN2
I
Key 2 input
41
AN3
O
Not used (Open)
42
VSS
—
Ground
43
AN4
O
Battery reduced voltage detect output
44 to 46
AN5 to 7
O
Not used (Open)
47
IRQ0/P80
I
Not used (Connected ground)
48
IRQ1/P81
I
Not used (Connected ground)
49
MD0
I
Normally : High, FLASH writing : Low
50
MD1
I
Normally : High, FLASH writing : High
51
IRQ2/MD2
I
Normally : Low, FLASH writing : High
52
BATT_OFF
I
dropout battery detect input
53
IRQ3/VDET1
I
Battery level down signal input
54
IRQ4/AC-CHK
I
AC in signal input
55
IRQ5/KEY INT
I
Key interrupt signal input
56
IRQ6
I
Not used (Open)
57
IRQ7/VDET2
I
VCC power detect signal input
18
XDR-S20
Pin No.
Pin Name
I/O
Description
58
SIN1
I
PLL serial data input
59
SOT1/PLL_DATA
O
PLL serial data output
60
SCKI/PLL_CLK
O
PLL serial clock output
61
P93/PLL CE
O
PLL CE signal output
62
P94
O
Not used (Open)
63
P95/BEEP
O
Beep signal output
64
P96
O
Not used (Open)
65
P97
O
Not used (Open)
66
PA0
O
Not used (Open)
67
PA1/KEY OFF
O
A/D converter power supply on/off signal output
68
P17/LCD_VCC
O
LCD brightness control signal output
69
PA3/RADIO SW
O
Radio power supply on/off signal output
70
P50/DAB SW
O
DAB power supply on/off signal output
71
P51/P-CON
O
Main power supply on/off signal output
72
P52/AMP_SW
O
Not used (Open)
73
P53/LIGHT
O
LCD brightness control signal output
74 to 76
P54 to 56
O
Not used (Open)
77
RST
I
system reset signal input
78
P57
O
Not used (Open)
79
X1A
O
Sub clock crystal oscillator output
80
X0A
I
Sub clock crystal oscillator input
81
VOSS
—
Ground
82
X0
I
Crystal oscillator input
83
X1
O
Crystal oscillator output
84
VCC3
—
Power supply (+3.3V)
85 to 92
P00 to 07
O
Not used (Open)
93 to 100
P10 to 17
O
Not used (Open)
19
XDR-S20
10
2-645-553-01 KNOB (TUNE) (SILVER)...(WHITE)
10
2-645-553-11 KNOB (TUNE) (GUN METALLIC)...(BLACK)
11
3-918-696-11 SCREW (M3X6 LOCK ACE)
12
3-254-140-01 SCREW (B2.6), (+) BV TAPPING
13
2-645-550-01 LID, BATTERY (WHITE)...(WHITE)
13
2-645-550-11 LID, BATTERY (BLACK)...(BLACK)
14
3-252-747-01 SPRING, RING
15
2-666-745-01 SHEET, INSULATING
16
2-664-095-01 SHEET (SPEAKER) (for BLACK)
ANT1
1-501-222-91 ANTENNA, TELESCOPIC (FM) (for BLACK)
ANT1
1-501-362-31 ANTENNA, TELESCOPIC (FM) (for WHITE)
SP301
1-826-283-11 SPEAKER (9.2cm)
SECTION 5
EXPLODED VIEWS
NOTE:
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
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.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
R R
Parts of Color Cabinet’s Color
•
•
Accessories are given in the last of electrical
parts list.
parts list.
Ref. No.
Part No.
Description
Remark
1
2-645-548-01 FRONT, CABINET (SILVER)...(WHITE)
1
2-645-548-11 FRONT, CABINET (BLACK)...(BLACK)
2
3-227-728-01 CUSHION (PC BOARD) (for WHITE)
3
2-645-560-01 NET, SPEAKER (SILVER)...(WHITE)
3
2-645-560-11 NET, SPEAKER (BLACK)...(BLACK)
4
4-925-334-41 EMBLEM (5-A), SONY
5
2-645-557-01 WINDOW (for WHITE)
5
2-645-557-11 WINDOW (for BLACK)
6
3-254-151-01 SCREW (B2.6), (+) P TAPPING
7
3-228-709-01 PLATE, ANTENNA CONTACT
8
2-645-552-01 KNOB (VOL) (SILVER)...(WHITE)
8
2-645-552-11 KNOB (VOL) (GUN METALLIC)...(BLACK)
9
2-645-554-01 KNOB (TUNE MODE) (SILVER)...(WHITE)
9
2-645-554-11 KNOB (TUNE MODE)
(GUN METALLIC)...(BLACK)
5-1.
FRONT CABINET SECTION
Ref. No.
Part No.
Description
Remark
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.
A
A
1
2
ANT1
SP301
3
4
5
6
7
8
9
10
11
12
12
12
13
14
15
16
20
XDR-S20
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
2-645-549-01 REAR, CABINET (WHITE)...(WHITE)
51
2-645-549-11 REAR, CABINET (BLACK)...(BLACK)
52
3-014-055-01 FOOT, RUBBER
53
A-1138-920-A POWER BOARD, COMPLETE
54
3-254-151-01 SCREW (B2.6), (+) P TAPPING
55
2-645-551-01 BUTTON (WHITE)...(WHITE)
55
2-645-551-11 BUTTON (BLACK)...(BLACK)
56
3-254-070-01 SCREW (for WHITE)
56
3-254-070-11 SCREW (for BLACK)
57
2-645-580-01 SHAFT (HANDLE)
58
A-1161-476-A AC INLET BOARD, COMPLETE
59
A-1138-928-A HEADPHONE JACK BOARD, COMPLETE
60
2-645-559-01 COVER, HANDLE (WHITE)...(WHITE)
60
2-645-559-11 COVER, HANDLE (BLACK)...(BLACK)
61
2-645-558-01 HANDLE (WHITE)...(WHITE)
61
2-645-558-11 HANDLE (BLACK)...(BLACK)
62
2-645-581-01 TERMINAL (–), BATTERY
63
2-645-582-01 TERMINAL (+.–), BATTERY
64
3-255-248-01 TERMINAL (+.–) (B), BATTERY
65
3-238-792-02 TERMINAL (+), BATTERY
66
3-255-247-01 TERMINAL (+.–) (A), BATTERY
67
3-265-394-01 CUSHION (SNOOZE)
0 F901
1-532-503-33 FUSE (T1.6AL/250V)
0 T901
1-443-847-11 TRANSFORMER, POWER
5-2.
REAR CABINET SECTION
F901
T901
not supplied
not supplied
not supplied
51
52
53
54
55
57
57
54
54
54
58
59
54
60
61
56
62
63
64
65
66
67
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