MSI MS-9541 8J160a04

A B C

SAF-TE

BOARD

1

DEBUG PORTS

I2C0
PORT

JTAG
PORT

2

FLASH

ROM

256KX8

SMVU
PORT

DATA BUS

ADDRESS BUS

20MHZ

OSC.

MICROCONTROLLER INTERFACE

CLK

I2C1
PORT

FRU

IPMB (I2C0)

VARIOUS SIGNALS

I2C1

Dell Controlled Print

PLANAR

CONNECTOR

PWR

LM81

LM75

DS2401

REV

X01 02/08/02
A00
A01 131711
A02

135871
141219

A04

142994

LVD SCSI

CONNECTOR

SCSI SLOT N

SCSI SLOT N+1

SCSI SLOT N+X

125755

REVISIONS

DESCRIPTIONECO DATE

Revision 2 (Product Test)
Production Level

Added Reset Delay Circuit
Updated GEM PN
Changed Flash ~WE Circuit
Pulled Unused LM81 Inputs Down

DISCOVERY 1X6 W/ GEM ON BOARD

TABLE OF CONTENTS

PAGE

1 BLOCK DIAGRAM
2

MAIN CONNECTORS

3

SAF-TE BOARD CONNECTORS

4

LEDS & IMPEDANCE COUPONS

5

SPARES, THERMAL MON. & RESET DELAY

6

LVD SCSI SLOTS 0 AND 5

7

LVD SCSI SLOTS 1 AND 2

8

LVD SCSI SLOTS 3 AND 4

9

QUICKSWITCHES AND BYPASS CAPS

10

QUICKSWITCHES AND GROUND CLIPS

11

GEM359 (SAF-TE AGENT)

12

FLASH, CPLD

13

LVD TERMINATION & ID

DESCRIPTION

D

APPROVED

04/17/02 A. Vowell
07/24/02
11/1/02

01/30/03A03
03/25/03

J. Metevier
J. Metevier

J. Metevier
J. Metevier

1

2

QLOGIC GEM359

SCSI ID6

OUTPUT PORT

DRIVE PRESENCE 0-7

SCHEMATIC IS CONFIGURED TO USE
THE XLBOM UTILITY:

BUILD0 IS PRODUCTION BUILD
BUILD1 IS THE PROTOTYPE BUILD

JTAG

LVD SCSI BUS

LVD SCSI

3

CPLD

LOGIC

CONTROL

DRIVE POWER 0-7

LVD SCSI

TERMINATION

POWER

CONNECTOR

Schematic_Projects\PowerEdge\
Discovery\Backplane\A04\8J160_A04_1X6_Backplane

3

FAULT

LEDS

ACTIVITY

LEDS

ONLINE

LEDS

4

THIS ITEM IS THE PROPERTY OF DELL COMPUTER CORP. AUSTIN, TEXAS
AND CONTAINS CONFIDENTIAL AND TRADE SECRET INFORMATION. THIS
ITEM MAY NOT BE TRANSFERRED FROM THE CUSTODY OF DELL COMPUTER
CORP., EXCEPT AS AUTHORIZED BY DELL COMPUTER CORP., AND THEN
ONLY BY WAY OF LOAN FOR LIMITED PURPOSES. IT MUST NOT BE
REPRODUCED IN WHOLE OR IN PART AND MUST BE RETURNED TO DELL

EXPORT RESTRICTION:

THE EXPORT OF THE INFORMATION, SCHEMATICS AND OTHER TECHNICAL DATA CONTAINED IN THIS DOCUMENT
IS CONTROLLED BY THE U.S. GOVERNMENT. THE EXPORT, DEEMED EXPORT OR OTHER TRANSFER OF THIS DATA
TO CERTAIN COUNTRIES AND INDIVIDUALS IS RESTRICTED. ANY TRANSFER, EXPORT OR REEXPORT, MUST BE
IN COMPLIANCE WITH THE U.S. EXPORT ADMINISTRATION REGULATIONS.

COMPUTER CORP. UPON REQUEST AND IN ALL EVENTS UPON COMPLETION
OF THE PURPOSE OF THE LOAN. NEITHER THIS ITEM NOR THE
INFORMATION IT CONTAINS MAY BE USED BY OR DISCLOSED TO PERSONS
NOT HAVING A NEED FOR SUCH USE OR DISCLOSURE CONSISTENT WITH
THE PURPOSE OF THE LOAN WITHOUT THE PRIOR WRITTEN CONSENT OF
DELL COMPUTER CORPORATION.

PROPRIETARY NOTE

LVD

SCSI BP

DRAWN
DESIGNED
CHECKED
APPROVED
APPROVED
APPROVED
APPROVED
RELEASED

Joyce Metevier

Joyce Metevier

Aaron Vowell

4/12/02
3/25/03

4/17/02

A CURRENT ISSUE OF THIS DRAWING MUST
INCLUDE A COPY OF THE FOLLOWING
ECO'S:
ECO

ECO
ECO
ECO
ECO
ECO
ECO
ECO

TITLE

SCHEM,BKPLN,1X6,S,P2600

DWG NO.

DATE

8J160

3/25/03 1 OF 13

DATE
DATE
DATE
DATE
DATE
DATE
DATE
DATE

COMPUTER
CORPORATION
AUSTIN,TEXAS

SHEET

REV.

4

A04

DCBA

A B C

D

POWER CONNECTORS

SCSI Chan 1 SCSI Chan 2

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

J11

1
2
3
4
5
6
7
8
9

35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

A_SD-12
A_SD-13
A_SD-14
A_SD-15
A_SDP-1
A_SD-0
A_SD-1
A_SD-2
A_SD-3
A_SD-4
A_SD-5
A_SD-6
A_SD-7
A_SDP-0
CONNA

A_TRMPWR

A_SATN-

A_SBSY­A_SACK­A_SRST­A_SMSG­A_SSEL­A_SCD­A_SREQ­A_SIO­A_SD-8
A_SD-9
A_SD-10
A_SD-11

3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9

2,5

3,6,7,9

3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9

+5V

R4

1 2

F547

8.2K-5%

2,3,11

6,8,10,13
6,8,10,13
6,8,10,13
6,8,10,13

6,8,10,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13

6,8,10,11,13

6,8,10,11,13

6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13

2,5

2,3,9,11

6,8,10,13

6,8,10,13

6,8,10,13

6,8,10,13

B_SD+12
B_SD+13
B_SD+14
B_SD+15
B_SDP+1
B_SD+0
B_SD+1
B_SD+2
B_SD+3
B_SD+4
B_SD+5
B_SD+6
B_SD+7
B_SDP+0

B_DIFFSENSE
B_TRMPWR

B_SATN+
CONNB
B_SBSY+
B_SACK+
B_SRST+
B_SMSG+
B_SSEL+
B_SCD+
B_SREQ+
B_SIO+
B_SD+8
B_SD+9
B_SD+10
B_SD+11

1

3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9

3,6,7,9

3,6,7,9

3,6,7,9
3,6,7,9
3,6,7,9

2

3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9
3,6,7,9

A_SD+12
A_SD+13
A_SD+14
A_SD+15
A_SDP+1
A_SD+0
A_SD+1
A_SD+2
A_SD+3
A_SD+4
A_SD+5
A_SD+6
A_SD+7
A_SDP+0

A_DIFFSENSE
A_TRMPWR

2,5

NC_A_19 NC_A_53
A_SATN+

CONNA

2,3,11

A_SBSY+
A_SACK+
A_SRST+
A_SMSG+
A_SSEL+
A_SCD+
A_SREQ+
A_SIO+
A_SD+8
A_SD+9
A_SD+10
A_SD+11

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

J12

1
2
3
4
5
6
7
8
9

35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68

B_SD-12
B_SD-13
B_SD-14
B_SD-15
B_SDP-1
B_SD-0
B_SD-1
B_SD-2
B_SD-3
B_SD-4
B_SD-5
B_SD-6
B_SD-7
B_SDP-0
CONNB

B_TRMPWR

NC_B_53NC_B_19
B_SATN-

B_SBSY­B_SACK­B_SRST­B_SMSG­B_SSEL­B_SCD­B_SREQ­B_SIO­B_SD-8
B_SD-9
B_SD-10
B_SD-11

6,8,10,13
6,8,10,13
6,8,10,13
6,8,10,13
6,8,10,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13

2,5

6,8,10,11,13

6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,11,13
6,8,10,13
6,8,10,13
6,8,10,13
6,8,10,13

+5V

R2

1 2

8.2K-5%

2,3,9,11

+12V

PLANAR POWER

+5V

J15

8

9
10
11
12
13
14

POWER

HEADER

ADD*_9K349_PWA
ADD*_8J161_PWB
ADD*_8J160_SCHEM
ADD*_8J162_ASSYDRW
ADD*_42753_REV

ADD*_42610_BAR

+3.3V

22uF 10V

1 2

22uF 10V

C5

MEDIA POWER

1

2

+12V

25V-20%

1 2

10uF

+12V

1
2
3
4

DISK DRIVE

PWR HI TEMP

25V-20%

10uF

C6

J13

1 2

C7

+12V
1
2
3
4
5
6
7

+3.3V

+5V

+5V

25V-20%

1 2

C3

22uF 10V

1 2

C2

10uF

1 2

25V-20%

C145

10uF

1 2

C146

22uF 10V

1 2

C4

RCPTRCPT

PLACE CLOSE TO POWER CONNECTOR

PLANAR CONNECTOR

J16

25
26

3

27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

24 POS ZIF

CONNECTOR

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

1

FAN_GRN_LED_DRV_4

2

FAN_AMB_LED_DRV_4

3

FAN_GRN_LED_DRV_3

4

FAN_AMB_LED_DRV_3

5

FAN_RAW_RPM_4

6

FAN_RAW_RPM_3
7
8
9
10
11
12
13
14
15

NC_CABLE_DETECT_1X2BP
16
17
18
19
20
21
22
23
24

FAN_CTRL

IPMB_DATA

IPMB_CLK

ALERT_OUT_3V

PWRGOOD

NC_PLANAR_SP5

NC_PLANAR_SP7

NC_PLANAR_SP16

+3.3V

Align Test Pads for P2 in a dual row formation with 100 mil centers.

4

Test Pads should be 50 mil pads.

+5V

3
3
3
3

R468

3

1 2

3

3,5,11
3,5,11
3,11

8.2K-5%

3

CABLE_DETECT_1X6

R467

+3.3V

21

R465

20K-5%

3,5,12

50V-10%

100pF

C149

1 2

Rise time delay = Reqv * C149

0-5%

1 2

Reqv (worst case) = 20K||330||8.2k = 313 ohm (approx)
Reqv accounts for parallel R's on Planar and Peripheral Bay

= 313ohm * 100pF
= 31.3 nS

1X6

2X3

SCSI A

SCSI A &
SCSI B

DAUGHTERSCSI CABLECONFIGURATION

ON BOARD GEM

ON BOARD GEM &

SECONDARY D.C

3

MAIN CONNECTORS

TITLE

COMPUTER
CORPORATION
AUSTIN,TEXAS

4

SCHEM,BKPLN,1X6,S,P2600

PROPRIETARY NOTE: THIS ITEM IS THE PROPERTY OF DELL COMPUTER CORP. AUSTIN, TEXAS AND CONTAINS CONFIDENTIAL
AND TRADE SECRET INFORMATION. THIS ITEM MAY NOT BE TRANSFERRED FROM THE CUSTODY OF DELL COMPUTER CORP. EXCEPT
AS AUTHORIZED BY DELL COMPUTER CORP., AND THEN ONLY BY WAY OF LOAN FOR LIMITED PURPOSES. IT MUST NOT BE REPRODUCED IN WHOLE
OR IN PART AND MUST BE RETURNED TO DELL COMPUTER CORP. UPON REQUEST AND IN ALL EVENTS UPON COMPLETION OF THE PURPOSE OF THE
LOAN. NEITHER THIS ITEM OR THE INFORMATION IT CONTAINS MAY BE USED BY OR DISCLOSED TO PERSONS NOT HAVING A NEED FOR SUCH
USE OR DISCLOSURE CONSISTENT WITH THE PURPOSE OF THE LOAN WITHOUT THE PRIOR WRITTEN CONSENT OF DELL COMPUTER CORPORATION.

DWG NO.

DATE

8J160

SHEET

REV.

A04

2 OF 133/25/03

POWER=2

DCBA

A B C

D

SAF-TE BUS SECONDARY CONNECTOR

1

4,12
4,12
4,12

4,12
4,12
4,12

4,12
4,12
4,12

2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9

2

3

R96

2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9

6,11
7,11
7,11

6,12
7,12
7,12

220

1 2

2,11

2,9,11

LEDONLN0
LEDONLN1
LEDONLN2
NC_LEDONLN3
LEDACT0
LEDACT1
LEDACT2
NC_LEDACT3
LEDFALT0
LEDFALT1
LEDFALT2
NC_LEDFALT3

NC_SRAM_VCC
A_SD+12
A_SD+13
A_SD+14
A_SD+15
A_SDP+1
A_SD+0
A_SD+1
A_SD+2
A_SD+3
A_SD+4
A_SD+5
A_SD+6
A_SD+7
A_SDP+0
A_SATN+
A_SBSY+
A_SACK+
A_SRST+
A_SMSG+
A_SSEL+
A_SCD+
A_SREQ+
A_SIO+
A_SD+8
A_SD+9
A_SD+10
A_SD+11
A_DIFFSENSE
HD_PRES0
HD_PRES1
HD_PRES2
NC_HD_PRES3
HD_POWER0
HD_POWER1
HD_POWER2
NC_HD_POWER3

SLAVE
SEC_DRIVEID0_LTCH

12

SEC_DRIVEID1_DATA

12

SEC_DRIVEID2_CLK

12

CONNA
CONNB

+5V

J10

1
3
5
7

9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
97
99

101
103
105
107
109
111
113
115
117
119

VERT RCPT

KEL 8901

SUB*_6N172

+3.3V

+12V

2
4
6

NC_LEDONLN4

8

NC_LEDONLN5

10

NC_LEDONLN6

12

NC_LEDONLN7

14

NC_LEDACT4

16

NC_LEDACT5

18

NC_LEDACT6

20

NC_LEDACT7

22

NC_LEDFALT4

24

NC_LEDFALT5

26

NC_LEDFALT6

28

NC_LEDFALT7
30
32
34

A_SD-12
36

A_SD-13
38

A_SD-14
40

A_SD-15
42

A_SDP-1
44

A_SD-0
46

A_SD-1
48

A_SD-2
50

A_SD-3
52

A_SD-4
54

A_SD-5
56

A_SD-6
58

A_SD-7
60

A_SDP-0
62

A_SATN­64

A_SBSY­66

A_SACK­68

A_SRST­70

A_SMSG­72

A_SSEL­74

A_SCD­76

A_SREQ­78

A_SIO­80

A_SD-8
82

A_SD-9
84

A_SD-10
86

A_SD-11
88

PWRGOOD_AND
90

NC_HD_PRES4
92

NC_HD_PRES5
94

NC_HD_PRES6
96

NC_HD_PRES7
98

NC_HD_POWER4
100

NC_HD_POWER5
102

NC_HD_POWER6
104

BANK_SWITCH
106

ALERT_OUT_3V
108

IPMB_CLK
110

IPMB_DATA
112

NC_DAUGHTER_PRES_1
114

NC_I2C_CLK
116

NC_I2C_D
118
120

GND;121
GND;122

2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
2,6,7,9
3

12
2,11
2,5,11
2,5,11

+3.3V

R419

1 2

8.2K-5%

DAUGHTER_PRES_0

9,11

1 2

C147

+3.3V

1 2

C148

0.1uF 16V

0.1uF 16V

FAN CONNECTOR

+12V

P1

1
2
3
4
5
6
7
8

FAN_RAW_RPM_4

FAN_CTRL

FAN_RAW_RPM_3

POCKET SHR

ROOM=FAN

FAN LEDs

FAN_AMB_LED_DRV_4

2

FAN_GRN_LED_DRV_4

2

FAN_AMB_LED_DRV_3

2

FAN_GRN_LED_DRV_3

2

2

YELLOW

3

GREEN

BICOLOR LED

YELLOW/GREEN

YELLOW

GREEN

BICOLOR LED

YELLOW/GREEN

FAN_4

2

3

FAN_3

2
2

2

1

ANODE

ANODE

+3.3V

1

1

2

+3.3V

3

U38

2

4

74VHC1G08

+3_3V;5

PWRGOOD_AND

31

9,10

PWRGOOD
BUS_SPLIT

4

2,5,12

SAF-TE BOARD CONNECTORS

COMPUTER
CORPORATION
AUSTIN,TEXAS

4

TITLE

SCHEM,BKPLN,1X6,S,P2600

PROPRIETARY NOTE: THIS ITEM IS THE PROPERTY OF DELL COMPUTER CORP. AUSTIN, TEXAS AND CONTAINS CONFIDENTIAL
AND TRADE SECRET INFORMATION. THIS ITEM MAY NOT BE TRANSFERRED FROM THE CUSTODY OF DELL COMPUTER CORP. EXCEPT
AS AUTHORIZED BY DELL COMPUTER CORP., AND THEN ONLY BY WAY OF LOAN FOR LIMITED PURPOSES. IT MUST NOT BE REPRODUCED IN WHOLE
OR IN PART AND MUST BE RETURNED TO DELL COMPUTER CORP. UPON REQUEST AND IN ALL EVENTS UPON COMPLETION OF THE PURPOSE OF THE
LOAN. NEITHER THIS ITEM OR THE INFORMATION IT CONTAINS MAY BE USED BY OR DISCLOSED TO PERSONS NOT HAVING A NEED FOR SUCH
USE OR DISCLOSURE CONSISTENT WITH THE PURPOSE OF THE LOAN WITHOUT THE PRIOR WRITTEN CONSENT OF DELL COMPUTER CORPORATION.

DWG NO.

DATE

8J160

SHEET

REV.

A04

3 OF 133/25/03

DCBA

A B C

D

+5V

U11

3,12

LEDACT2

1 2

7407

BLEDACT2

4,7

LEDACT4

12

1

3,12

3,12

LEDACT3

12

LEDACT0

LEDACT1

U11

7407

U11

5 6

7407

U11

7407

43

89

BLEDACT3

BLEDACT0

BLEDACT1

4,8

4,6

4,7

LEDACT5

12

2

IMPEDANCE TESTING

DRAW SILKSCREEN BOX AROUND VIAS ONLY ON "A" SIDE.
LABEL VIAS WITH THE NET NAME BY THE "A" COUPONS.

THE LABEL SHOULD BE BY THE PIN ON THE COUPON

L1

L1+A

1

TP_1

2

L3

3

GND1_COUPON

4

GND1_COUPON

1
2
3
4

L1-A

L3+A
L3-A

12V_COUPON
GND1_COUPON

TP_2
TP_3
TP_4

IMPEDENCE

TEST POINT

TP_1
TP_2
TP_3

3

TP_4

IMPEDENCE

TEST POINT

L1B

1

TP_1

2

TP_2

3

TP_3

4

TP_4

IMPEDENCE

TEST POINT

L3B

1

TP_1

2

TP_2

3

TP_3

4

TP_4

IMPEDENCE

TEST POINT

U11

11 10

7407

U11

7407

1213

BLEDACT4

BLEDACT5

4,8

4,6

4,7

3,12

3,12

4,8

4,6

3,12

3,12

4,7

3,12

3,12

BLEDACT2

LEDONLN2

LEDFALT2

BLEDACT3

12

12

LEDONLN3

LEDFALT3

BLEDACT0

LEDONLN0

LEDFALT0

BLEDACT1

LEDONLN1

LEDFALT1

R424

110-5% 110-5%

R426

110-5% 110-5%

R422

110-5% 110-5%

R430

110-5% 110-5%

R432

110-5% 110-5%

R428

110-5% 110-5%

R436

110-5% 110-5%

R438

110-5% 110-5%

R434

110-5% 110-5%

R442

110-5% 110-5%

R444

110-5% 110-5%

R440

110-5% 110-5%

R425

R427

R423

R431

R433

R429

R437

R439

R435

R443

R445

R441

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

2_A

1 2

GRN LED

GRN LED

2_O_F

1

G
Y

GRN / YEL LEDS

3_A

21

GRN LED

3_O_F

1

G

Y

GRN / YEL LEDS

0_A

1 2

0_O_F

1

G
Y

GRN / YEL LEDS

1_A

21

GRN LED

1_O_F

1

G
Y

GRN / YEL LEDS

BLEDACT4

4,8

LEDONLN4

2
43

2

43

2

43

2
43

12

12

4,6

12

12

LEDFALT4

BLEDACT5

LEDONLN5

LEDFALT5

R454

110-5% 110-5%

R452

110-5% 110-5%

R456

110-5%

R448

110-5% 110-5%

R446

110-5% 110-5%

R450

110-5% 110-5%

21

21

21

21

21

21

R455

R453

R457

110-5%

R449

R447

R451

21

21

21

21

21

21

4_A

21

GRN LED

GRN LED

4_O_F

1

GRN / YEL LEDS

5_A

1 2

5_O_F

1

GRN / YEL LEDS

G

Y

G

Y

+5V

1

2

43

2

43

2

3

L7

TP_1
TP_2
TP_3
TP_4

IMPEDENCE

TEST POINT

L8

TP_1
TP_2
TP_3
TP_4

IMPEDENCE

TEST POINT

1
2
3
4

1
2
3
4

L7+A
L7-A

GND2_COUPON
GND3_COUPON

L8+A
L8-A

GND2_COUPON

GND3_COUPON

L7B

1

TP_1

2

TP_2

3

TP_3

4

TP_4

IMPEDENCE

TEST POINT

L8B

1

TP_1

2

TP_2

3

TP_3

4

TP_4

IMPEDENCE

TEST POINT

LEDS & IMPEDANCE COUPONS

4

TITLE

SCHEM,BKPLN,1X6,S,P2600

PROPRIETARY NOTE: THIS ITEM IS THE PROPERTY OF DELL COMPUTER CORP. AUSTIN, TEXAS AND CONTAINS CONFIDENTIAL
AND TRADE SECRET INFORMATION. THIS ITEM MAY NOT BE TRANSFERRED FROM THE CUSTODY OF DELL COMPUTER CORP. EXCEPT
AS AUTHORIZED BY DELL COMPUTER CORP., AND THEN ONLY BY WAY OF LOAN FOR LIMITED PURPOSES. IT MUST NOT BE REPRODUCED IN WHOLE
OR IN PART AND MUST BE RETURNED TO DELL COMPUTER CORP. UPON REQUEST AND IN ALL EVENTS UPON COMPLETION OF THE PURPOSE OF THE
LOAN. NEITHER THIS ITEM OR THE INFORMATION IT CONTAINS MAY BE USED BY OR DISCLOSED TO PERSONS NOT HAVING A NEED FOR SUCH
USE OR DISCLOSURE CONSISTENT WITH THE PURPOSE OF THE LOAN WITHOUT THE PRIOR WRITTEN CONSENT OF DELL COMPUTER CORPORATION.

DWG NO.

DATE

8J160

3/25/03 4 OF 13

DCBA

COMPUTER
CORPORATION
AUSTIN,TEXAS

REV.

SHEET

A04

4