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Pin Assignments for I/O Connectors

Dell™ Inspiron™ 300m Service Manual

  Pin Assignments for the Computer

  Pin Assignments for the Media Base

Pin Assignments for the Computer

USB Connector 2.0

Pin	Signal
1	VCC
2	Data–
3	Data+
4	GND

Video Connector

Pin	Signal	Pin	Signal
1	RED	9	CRT_VCC
2	GREEN	10	GND
3	BLUE	11	NC
4	NC	12	DAT_DDC2
5	GND	13	HSYNC
6	GND	14	VSYNC
7	GND	15	CLK_DDC2
8	GND

IEEE 1394 Connector

1	TPB–
2	TPB+
3	TPA–
4	TPA+

Pin Assignments for the Media Base

Docking Connector

Pin	Signal	Pin	Signal
1	DCK3_DOCK_IN2*	2	USB3_P2+
3	SYS_DCIN*	4	USB3_P2–
5	VDC	6	GND
7	VDC	8	VGA3_RED
9	VDC	10	VGA3_GREEN
11	KBC3_ADID_CLK	12	VGA3_BLUE
13	GND	14	VGA5_DDCD
15	PIO3_SLCT	16	VGA5_DDCC
17	PIO3_AUTOFD*	18	VGA5_HSYNC
19	PIO3_ERROR*	20	VGA5_VSYNC
21	PIO3_INIT*	22	GND
23	PIO3_SLCTIN*	24	KBC3_EJECT*
25	GND	26	DCK3_RST*
27	PIO3_PD0	28	BATTB_PRES*
29	PIO3_PD1	30	BAT3_VOLTB
31	PIO3_PD2	32	KBC3_CHGENB
33	PIO3_PD3	34	KBC3_DCHGENB
35	PIO3_PD4	36	DCHGOUTB
37	PIO3_PD5	38	DBAT3_SMDATA
39	PIO3_PD6	40	DBAT3_SMCLK
41	PIO3_PD7	42	KBC3_DCKPWRON
43	PIO3_STROBE*	44	GND
45	PIO3_ACT*	46	PS25_KCLK
47	PIO3_BUSY	48	PS25_KDATA
49	PIO3_PE	50	PS25_MCLK
51	GND	52	PS25_MDATA
53	SIO3_DTR1*	54	P2.5V_LAN
55	SIO3_TXD1*	56	KBC3_
57	SIO3_RTS1*	58	GND
59	SIO3_CTS1*	60	AUD3_SPDIF
61	SIO3_R11*	62	DCK3_PWRSW*
63	SIO3_DSR1*	64	D_HP_IN
65	SIO3_DSR1*	66	CHP3_USBIDE_RST*
67	SIO3_DCD1*	68	DCK_VOLUP*
69	DCK_NICOMVDC	70	KBC3_
71	GND	72	GND*
73	LAN3_DCK_TRD2N	74	LAN3_DCK_TRD3N
75	LAN3_DCK_TRD2P	76	LAN3_DCK_TRD3P
77	LAN3_DCK_TRD0N	78	LAN3_DCK_TRD1N
79	LAN3_DCK_TRD0P	80	LAN3_DCK_TRD1P
81	GND	82	GND
83	PWRON_CHG	84	DCK3_LANACT*
85	DCK_VOLDN*	86	100M_LED*
87	GND	88	10M_LED*
89	USB3_P6–	90	USB3_P4+
91	USB3_P6+	92	USB3_P4–
93	GND	94	MOD_PRES*
95	1394_TPB–	96	1394_TPA–
97	1394_TPB+	98	1394_TPA+
99	DCK_DETECT*	100	DCK3_DOCK_IN1*

PS/2 Connector

Pin	Signal
1	DAT_KBD
2	DAT_SM1
3	GND
4	PS2VCC
5	CLK_KBD
6	CLK_SM1

Parallel Connector

Pin	Signal	Pin	Signal
1	STRB*/5V	10	ACK*/DRV*
2	PD0/INDEX*	11	BUSY/MTR*
3	PD1/TRK0*	12	PE/WDATA*
4	PD2/WP*	13	SLCT/WGATE*
5	PD3/RDATA*	14	AUTOFD*
6	PD4/DSKCHG*	15	ERROR*/HDSEL*
7	PD5F	16	INIT*/DIR*
8	PD6F	17	SLCT_IN/*STEP*
9	PD7F	18–25	GND

Video Connector

Pin	Signal	Pin	Signal
1	RED	9	CRT_VCC
2	GREEN	10	GND
3	BLUE	11	NC
4	NC	12	DAT_DDC2
5	GND	13	HSYNC
6	GND	14	VSYNC
7	GND	15	CLK_DDC2
8	GND

Serial Connector

Pin	Signal	Pin	Signal
1	DCD*	6	DSR*
2	RXDA	7	RTS*
3	TXDA	8	CTS*
4	DTR*	9	RI*
5	GND

IEEE 1394 Connector

1	TPB–
2	TPB+
3	TPA–
4	TPA+

USB Connector 2.0 (2)

Pin	Signal
1	VCC
2	Data–
3	Data+
4	GND

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