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8 7 6 5 4 3 2 1
CK
1. ALL RESISTANCE VALUES ARE IN OHMS, 0.1 WATT +/- 5%. APPD
REV ECN DESCRIPTION OF REVISION
2. ALL CAPACITANCE VALUES ARE IN MICROFARADS. DATE
3. ALL CRYSTALS & OSCILLATOR VALUES ARE IN HERTZ.
2011-04-08

K78 MLB SCHEMATIC
04/08/11
D (.csa) Date (.csa) Date D
Page Contents Sync Page Contents Sync
TABLE_TABLEOFCONTENTS_HEAD TABLE_TABLEOFCONTENTS_HEAD

1 MASTER 55 12/13/2010
1 Table of Contents MASTER 46 Thermal Sensors K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

2 12/11/2009 56 12/13/2010
2 System Block Diagram K6_MLB 47 Fan K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

3 19/01/2011 57 12/13/2010
3 Power Block Diagram 48 IPD / KBD Backlight K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

4 11/16/2010 61 12/13/2010
4 K78 BOM Variants K21_MLB 49 SPI ROM K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

5 11/16/2010 62 12/13/2010
5 BOM Configuration K21_MLB 50 AUDI0: SPEAKER AMP K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

7 (02/16/2010) 69 11/11/2010
6 Functional Test / No Test (K99_MLB) 51 DC-In & Battery Connectors K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

8 05/15/2010 70 11/30/2010
7 Power Aliases K91_MLB 52 PBus Supply & Battery Charger K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

9 05/15/2010 71 12/13/2010
8 Signal Aliases K91_MLB 53 System Agent Supply K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

10 12/13/2010 72 11/30/2010
9 CPU DMI/PEG/FDI/RSVD K21_MLB 54 5V / 3.3V Power Supply K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

11 12/13/2010 73 12/13/2010
10 CPU CLOCK/MISC/JTAG K21_MLB 55 1.5V DDR3 Supply K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

12 12/13/2010 74 12/13/2010
11 CPU DDR3 INTERFACES K21_MLB 56 CPU IMVP7 & AXG VCore Regulator K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

13 12/13/2010 75 12/13/2010
12 CPU POWER K21_MLB 57 CPU IMVP7 & AXG VCore Output K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

14 12/13/2010 76 12/13/2010
13 CPU GROUNDS K21_MLB 58 CPU VCCIO (1.05V) Power Supply K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

16 12/13/2010 77 12/13/2010
14 CPU DECOUPLING-I K21_MLB 59 Misc Power Supplies K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

17 12/13/2010 78 12/13/2010
15 CPU DECOUPLING-II K21_MLB 60 Power FETs K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

18 12/13/2010 79 12/13/2010
16 PCH SATA/PCIE/CLK/LPC/SPI 61 Power Control 1/ENABLE
C TABLE_TABLEOFCONTENTS_ITEM

17
19
PCH DMI/FDI/GRAPHICS
K21_MLB

K21_MLB
12/13/2010
TABLE_TABLEOFCONTENTS_ITEM

62
90
Internal DisplayPort Connector
K21_MLB

K21_MLB
12/13/2010 C
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

20 12/13/2010 93 12/13/2010

18 PCH PCI/FLASHCACHE/USB K21_MLB 63 DisplayPort/T29 A MUXing K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

21 12/13/2010 94 12/13/2010
19 PCH MISC K21_MLB 64 DisplayPort/T29 A Connector K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

22 12/13/2010 97 12/13/2010
20 PCH POWER K21_MLB 65 LCD Backlight Driver K21_MLB
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

23 12/13/2010 100 04/06/2011

21 PCH GROUNDS K21_MLB 66 CPU Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

24 12/13/2010 101 04/06/2011
22 PCH DECOUPLING K21_MLB 67 Memory Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

25 12/13/2010 102 04/06/2011

23 CPU & PCH XDP K21_MLB 68 PCH Constraints 1 CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

26 12/13/2010 103 04/06/2011

24 USB HUBS K21_MLB 69 PCH Constraints 2 CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

27 11/30/2010 104 04/06/2011

25 Clock (CK505) and Chipset Support K21_MLB 70 Ethernet/FW Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

28 12/13/2010 105 04/06/2011

26 CPU Memory S3 Support K21_MLB 71 T29 Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

29 12/13/2010 106 04/06/2011
27 DDR3 DRAM CHANNEL A (0-31) K21_MLB 72 SMC Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

30 12/13/2010 108 04/06/2011
28 DDR3 DRAM CHANNEL A (32-63) K21_MLB 73 Project Specific Constraints CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

31 12/13/2010 109 04/06/2011
29 DDR3 DRAM CHANNEL B (0-31) K21_MLB 74 PCB Rule Definitions CONSTRAINTS
TABLE_TABLEOFCONTENTS_ITEM TABLE_TABLEOFCONTENTS_ITEM

32 12/13/2010
30 DDR3 DRAM CHANNEL B (32-63) K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

33 12/13/2010
31 FSB/DDR3/FRAMEBUF Vref Margining K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

34 12/13/2010
32 DDR3 DRAM Channel B (32-63) K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

36 12/13/2010
33 T29 Host (1 of 2) K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

B TABLE_TABLEOFCONTENTS_ITEM
34
37

38
T29 Host (2 of 2) K21_MLB
12/13/2010

12/13/2010
B
35 T29 Power Support K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

40 12/13/2010
36 X21 WIRELESS CONNECTOR K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

45 12/13/2010
37 SATA CONNECTOR K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

46 12/13/2010
38 External USB Connectors K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

47 N/A
39 LIO CONNECTORS N/A
TABLE_TABLEOFCONTENTS_ITEM

49 12/13/2010
40 SMC K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

50 12/13/2010
41 SMC Support K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

51 12/13/2010
42 LPC+SPI Debug Connector K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

52 12/13/2010

43 SMBus Connections K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

53 12/13/2010
44 Voltage & Load Side Current Sensing K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

54 12/13/2010
45 High Side Current Sensing K21_MLB
TABLE_TABLEOFCONTENTS_ITEM

A A
DRAWING TITLE

SCHEM,MLB,K78
DRAWING NUMBER SIZE
Schematic / PCB #'s Apple Inc. 051-8871 D
REVISION
PART NUMBER QTY DESCRIPTION REFERENCE DES CRITICAL BOM OPTION PRODUCT SAFETY REQUIREMENTS: R

PCB, UL RECOGNIZED, MIN. 130-C TEMP. RATING AND V-0 FLAME RATING PER UL 796 & UL 94.
2.5.0
051-8871 1 SCHEM,MLB,K78 SCH CRITICAL NOTICE OF PROPRIETARY PROPERTY: BRANCH
PCB TO BE SILK-SCREENED WITH UL/CUL RECOGNITION MARK, MANUFACTURER'S UL FILE
THE INFORMATION CONTAINED HEREIN IS THE
820-3024 1 PCBF,MLB,K78 PCB CRITICAL NUMBER, UL PCB MATERIAL DESIGNATION, 130-C TEMP. RATING AND V-0 FLAME RATING. PROPRIETARY PROPERTY OF APPLE COMPUTER, INC.
THE POSESSOR AGREES TO THE FOLLOWING: PAGE
DRAWING
TITLE=MLB
I TO MAINTAIN THIS DOCUMENT IN CONFIDENCE
II NOT TO REPRODUCE OR COPY IT
1 OF 109
ABBREV=DRAWING III NOT TO REVEAL OR PUBLISH IT IN WHOLE OR PART SHEET
LAST_MODIFIED=Fri Apr 8 10:21:51 2011 IV ALL RIGHTS RESERVED 1 OF 74
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1

1G/2GB

J2500
CPU JTAG
XDP CONN U2900,U3030
PG 10

U1000 MEMORY
PG 23

D A
DDR3-1066/1333MHZ
64-Bit D
INTEL CPU PG 27,38
J9000 1G/2GB
INTERNAL
DISPLAY EDP
SANDYBRIDGE SFF MEMORY
CONN
PG 62 PG 9 U7000
U3100,3230
1.6 GHZ
MEMORY
DDR3-1066/1333MHZ CHARGER POWER CIRCUITRY
B
64-Bit
PG 52-60
PG 29,30
PCIE FDI PG 52
DMI
PG 9
PG 9 PG 9 PG 11

TEMP SENSOR
PG 46

VOLTAGE/CURRENT SENSOR
RTC FDI DMI GPIO
U2700
PG 45

SYSTEM PG 16 PG 17 PG 17 PG 15 U6100
CLOCK
J5600

CLOCK
SPI BOOTROM
PG 25
BUFFER FAN CONN
PG 16
PG 49
PG16 PG 47

MISC
J4501
U4900
SSD SATA SMB_BSA SMB_B/0 ADC FAN0
PG 19
CONN
C PG 37
PG 16 LPC
J5100
LPC+SPI SERIAL
C
CONN PORT

U1800 PG 16 SMC
PG 42

EDP OUT PWR
INTEL PCH CTRL PM_SLP
S3/S4
HDMI OUT PG 40
SMB_A LID
PG 17
RGB OUT U2600

COUGAR POINT

0
U3600
PCIE DVI OUT USB
HUB-1

1
TMDS OUT

2
LVDS OUT

3
PG 24
T29 ROUTER J6955
HALL

4
1
EFFECT

5
PG 34,35 J5700
U9390 PG 51
J9400
IPD FLEX

6
DISPLAY PORT+ DP DP OUT U2650

T29 USB CONN