SW2-303

SW2-303 (SysCon)

First to be seen on PS3 Slim CECH-25xx with motherboards: JSD-00x/JTP-00x

Photo of a Syscon 'SW2-303' (QFP Packaging)

QFP Package : 128 pins
pin 1 left bottom at mark, counter clockwise from south (pins 1-38) to east (pins 39-64), north (pins 65-102), west (103-128))

Pinout

Pin #	Name	Port	Description
1
2			~1V @ standby (0 V?)
3			3V @ standby (3.15V)
4
5	POW_LED
6	STBY_LED		3v @ standby (3.3V)
7
8
9
10
11			Connected to Backlit LEDs @PWR/EJT Board
12			Connected to CONTOUR LEDs @PWR/EJT Board
13			Connected to Pogo pin @PWR/EJT Board, seems its a service pin.
14
15
16	BUZZER
17
18			3v @ standby
19
20
21	BACKUP_MODE?		3v @ standby
22			(Connected to Pin 7 @ Service Connector) (0V?)
23
24			3v @ standby (3.15)
25			3v @ standby (3.15)
26			CLK -> 1-2V Amplitude (32.768Khz?)
27
28			3v @ standby
29			1v @ standby (Connected to pin 8 at Service Connector)
30			0.8v @ standby
31			2.2v @ standby
32
33	GROUND
34	GROUND
35			3v @ standby (3.3)
36			3v @ standby (3.3)
37			0.2v @ standby
38			0.2v @ standby
39
40
41	AC IN?		3v @ standby (3.3)
42
43	DIAG_MODE?		3v @ standby
44
45
46
47			3v @ standby (3.15)
48			3v @ standby (3.15)
49
50			(Connected to pin 3 @ Service Connector)
51
52
53
54
55
56	GROUND
57	BUZZER?		3v @ standby (3.3)
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76			3v @ standby (3.15)
77			3v @ standby (3.3)
78	SC_RxD
79	SC_TxD		3v @ standby (3.3)
80
81			1v @ standby
82
83			2v @ standby
84			3v @ standby
85
86
87
88
89
90
91
92
93
94
95
96
97			3v @ standby (3.3)
98
99
100			3v @ standby (3.3)
101	GROUND
102
103
104
105
106
107
108
109			3v @ standby
110	/POW_SW		3v @ standby (3.3)
111	/EJECT_SW		3v @ standby (3.3)
112
113
114
115
116
117			(0V?)
118	ACDC_STBY
119
120
121
122
123
124
125
126	FAN_PWM		PWM Control for the Fan.
127
128