Group 11

910

510

Criticality Failure Effect Max Probability

High Injury to user may occur.

Low Loss of some or all functions of the device. Customer dissatisfaction may occur

Criticality Levels

Block Component

A Power Supply

B Microcontroller

C LCD and optical encoder

D Infrared sensors

E Infrared transmitters

Functional Blocks

Title

Size Document Number Rev

Date: Sheet of

1 0

Team 11 Schematic

C

1 1Wednesday, March 08, 2006

PB1

PG0

PG4PG3

PG1PG2

Vcc

PB2

GND

PB3

PC0

PC4PC3

PC1PC2

PC7PC6PC5

COMP1

FB2 GND

3

SW4

V IN5

Z1

UC2577ADJ/TOC3

2200uF

L1

47uH

R53.09 kohm

R7

1.5 kohm

R41 kohm

GND

Vcc

GNDR30

10 ohm

PB3PB2

PB5PB4

PB7PB6

PB1PB0

12345678910111213141516

J2

LCD Header

PA7PA6

PC1PC0

PC2

GND

GND

PA1PA0

PA3PA2

PA4PA5

PH2

123456

J1

RPG

PH4PH3

PD2

PH6PH5

PD4Vcc

PH0

PH7

GND

PD5

PH1

Vcc

R33.3kohm

R23.3kohm

GNDR31

10 ohm

12 IR 1

GNDPB4

PB512 IR 2

GND

12 IR 3PB6

GND

PD3PD2

PD5PD4

PD7PD6

PD1PD0

PA0

Vcc

GNDR32

10 ohm

12 J4

LED 1

GNDR25

10 ohm

PG1 PC5

C7

1 uF

12345

Sensor 4

GNDGND

Vcc

PC4

C8

1 uF

12345

Sensor 5

GNDGND

Vcc

Vcc

PE1

12345

Sensor 6

GNDGND

C9

1 uF

Vcc

PF1

Vcc

C10

1 uF

12345

Sensor 7

GNDGND

Vcc

PC6

C11

1 uF

12345

Sensor 8

C130.1 uF

GNDGND

Vcc

PF0

12345

Sensor 9

GNDGND

12

J19SWITCH

C12

1 uF

PG5

Vcc

PA3

Vcc

12345

Sensor 1

C4

1 uF

GNDGND

Vcc

PG0

12345

Sensor 2

C5

1 uF

12 J12

LED 9

C140.1 uF

GND

Vcc

GND

PA4

PE0

12345

Sensor 3

GND

C6

1 uF123

J13

PROGRAMMING HEADER

Vcc

GND

GNDR26

10 ohm

PA2

2468

1012141618

1357911131517

J17

mcright

GND

C150.1 uF

C10.1uF

R20150 ohms

PA1

C160.1 uF

GND

PC558

XTAL2(TOSC2)33

XTAL1(TOSC1)34

PC668

(MOSI/PCINT10)PB221

(MISO/PCINT11)PB322

(OC0A/PCINT12)PB423

(OC1A/PCINT13)PB524

GND32 VCC

10

PC053

PC154

PC255

PA474

PA573

PA672

PA771

(ADC0)PF097

PA375

PC769

PC457 PC356

PG5(RESET)30

(SS/PCINT8)PB019

(SCK/PCINT9)PB120

(OC1B/PCINT14)PB625

(OC2A/PCINT15)PB726

PA078

PA177

PA276

(TCK/ADC4)PF493

(TMS/ADC5)PF592

PE7(CLKO/PCINT7)9 PE6(DO/PCINT6)8 PE5(DI/SDA/PCINT5)7 PE4(USCK/SCL/PCINT4)6 PE3(AIN1/PCINT3)5 PE2(XCK/AIN0/PCINT2)4 PE1(TXD/PCINT1)3 PE0(RXD/PCINT0)2

PG270 PG152 PG051

PD750PD649PD548PD447PD346PD245(INT0)PD144(ICP1)PD043

GND81

AGND99

VCC31

AVCC100AREF98

DNC1

PG4(T0)29 PG3(T1)28

(ADC1)PF196

(ADC2)PF295

(ADC3)PF394

(TDO/ADC6)PF691

(TDI/ADC7)PF790

(PCINT16)PH063

(PCINT17)PH164

(PCINT18)PH265

(PCINT19)PH366

(PCINT20)PH484

(PCINT21)PH585

(PCINT22)PH686

(PCINT23)PH787

PJ0(PCINT24)13

PJ1(PCINT25)14

PJ2(PCINT26)37

PJ3(PCINT27)38

PJ4(PCINT28)39

PJ5(PCINT29)40

PJ6(PCINT30)41

GND11

VCC80

DNC12

DNC15

DNC16

DNC17

DNC18

DNC27

DNC35

DNC36

DNC42

DNC59

DNC60

DNC61

DNC62

DNC67

DNC79

DNC82

DNC83

DN

C88

DN

C89

IC2

ATmega3250

PB7

PG5

R33

85 ohm

GND

R18150 ohms

PG4

PJ0GND

GND

12 J5

LED 2

R19150 ohms

12 J 6

LED 3

LCD Header

Power/GND

LEDs

IR Transmitters

Microcontroller IR Sensors/SIP resistor

12

J3

BATTERY

PJ2

12

J8

LED 5

12 J7

LED 4

PJ4

PJ3

PJ0

PJ2

PJ4

12 J9

LED 6

PJ5

PJ1

PD3

PJ6

R81.2 kohms

PD7PD5

PD1

12 J11

LED 8

PJ1GND

R91.2 kohms

PE0

PE4PE3

PE1PE2

PE7PE6PE5

PG0PG1

PG2

PC0

PC4PC3PC1

PC2

PC7 PC6

PJ2

PJ0PC5

GND

R101.2 kohms

PJ1

PE0

PE4 PE3PE1PE2

PE7PE6 PE5

PB3PB2

12 J10

LED 7

PB5PB4PB6

PB1PB0

PH3 PH2

PH5PH4

PH7PH6

PH1 PH0

R24

10 ohm

PF3PF2

PJ3

PF5PF4

PF7PF6

GND

R111.2 kohms

PF1PF0

135791113151719

2468

101214161820

J18

mctop

2468

10121416

13579111315

J16

mcleft

2468

1012141618

1357911131517

J15

mcbottom

PA0

PA4PA3

PA1 PA2

PA7PA6PA5

C20.47uF

PJ4GND

R121.2 kohms

GNDR27

10 ohm

R2310 kohm POT

Vcc

GND

PJ5GND

R13

1.2 kohms

PC3

PJ5PJ3

PD4PD2PD0

PD6

12

J21

RESET HEADER

PJ6

PF2

GND

R141.2 kohms

PF4PF3

PF6PF5

PF0

PF7

PF1

GND

PH0GND

R151.2 kohms

GNDR28

10 ohm

PA7PA6PA5

PH1

PG5PG3

GND

R161.2 kohms

D1

1N5817

GNDR29

10 ohm

PJ6

GND

A B

C

D

E

A Power Supply

COMP1

FB2 GND

3

SW4

V IN5

Z1

UC2577ADJ/TOC3

2200uF

L1

47uH

R53.09 kohm

R7

1.5 kohm

R41 kohm

Vcc12

J19SWITCH

C10.1uF

GND

Power/GND

12

J3

BATTERY

C20.47uF

GND

D1

1N5817

Failure No. Failure Mode Possible Causes Failure Effects Method of Detection

Criticality Remarks

A1 Output = 0V Failure of any component in function block A or an external short

Device will notfunction and may overheat. May cause burns to the user and melt the plastic casing.

Observation High

A2 Output > 5.5V Z1, R5 and R4 Potential damage to IC2, LCD and IR Sensors. May cause loss of some or all functions of the device.

Observation Low

A3 Output out oftolerance

Z1, L1, C1, C2, R7, D1, C3, R5 and R4.

High ripple or out-of-spec operating

voltage

Observation Low

A Power Supply

B Microcontroller

PG0

PG4PG3

PG1PG2

Vcc

PC0

PC4PC3

PC1PC2

PC7PC6PC5

PB3PB2

PB5PB4

PB7PB6

PB1PB0

PH2

PH4PH3

PH6PH5

PH0

PH7

PH1

PD3PD2

PD5PD4

PD7PD6

PD1PD0

PA0

Vcc

Vcc

C130.1 uF

PA3

Vcc

C140.1 uF

PA4

PA2

GND

C150.1 uF

PA1

C160.1 uF

GND

PC558

XTAL2(TOSC2)33

XTAL1(TOSC1)34

PC668

(MOSI/PCINT10)PB221

(MISO/PCINT11)PB322

(OC0A/PCINT12)PB423

(OC1A/PCINT13)PB524

GND32 VCC

10

PC053

PC154

PC255

PA474

PA573

PA672

PA771

(ADC0)PF097

PA375

PC769

PC457 PC356

PG5(RESET)30

(SS/PCINT8)PB019

(SCK/PCINT9)PB120

(OC1B/PCINT14)PB625

(OC2A/PCINT15)PB726

PA078

PA177

PA276

(TCK/ADC4)PF493

(TMS/ADC5)PF592

PE7(CLKO/PCINT7)9 PE6(DO/PCINT6)8 PE5(DI/SDA/PCINT5)7 PE4(USCK/SCL/PCINT4)6 PE3(AIN1/PCINT3)5 PE2(XCK/AIN0/PCINT2)4 PE1(TXD/PCINT1)3 PE0(RXD/PCINT0)2

PG270 PG152 PG051

PD750PD649PD548PD447PD346PD245(INT0)PD144(ICP1)PD043

GND81

AGND99

VCC31

AVCC100AREF98

DNC1

PG4(T0)29 PG3(T1)28

(ADC1)PF196

(ADC2)PF295

(ADC3)PF394

(TDO/ADC6)PF691

(TDI/ADC7)PF790

(PCINT16)PH063

(PCINT17)PH164

(PCINT18)PH265

(PCINT19)PH366

(PCINT20)PH484

(PCINT21)PH585

(PCINT22)PH686

(PCINT23)PH787

PJ0(PCINT24)13

PJ1(PCINT25)14

PJ2(PCINT26)37

PJ3(PCINT27)38

PJ4(PCINT28)39

PJ5(PCINT29)40

PJ6(PCINT30)41

GND11

VCC80

DNC12

DNC15

DNC16

DNC17

DNC18

DNC27

DNC35

DNC36

DNC42

DNC59

DNC60

DNC61

DNC62

DNC67

DNC79

DNC82

DNC83

DNC88 DNC89

IC2

ATmega3250

PG5

GND

PJ3

PJ0

PJ2

PJ4PJ5

PJ1

PE0

PE4PE3

PE1PE2

PE7PE6PE5

PF2

PF4PF3

PF6PF5

PF0

PF7

PF1

PA7PA6PA5

PJ6

GND

Failure No. Failure Mode Possible Causes Failure Effects Method of Detection

Criticality Remarks

B1 Output continuously 1

IC2, software Unreadable display and loss of control of IR transmitters

Observation Low

B2 Output continuously 0

IC2, software Loss of control of display and IR transmitters

Observation Low

B Microcontroller

C LCD and Optical encoder

12345678910111213141516

J2

LCD Header

PA7PA6

PC1PC0

PC2

GND

GND

PA1PA0

PA3PA2

PA4PA5

Vcc

R33

85 ohm

R2310 kohm POT

Vcc

GND

PC3

123456

J1

RPG

PD2

PD4Vcc

GND

PD5

Vcc

R33.3kohm

R23.3kohm

Failure No. Failure Mode Possible Causes Failure Effects Method of Detection

Criticality Remarks

C1 LCD fails to output correct display.

J2, IC2, software Unable to program additional hand gestures or view current command recognized

Observation Low

C2 Optical encoder not working

J1, R2, R3, software

Loss of input control; unable to access user menu to program additional hand gestures

Observation Low

C LCD and Optical encoder

D Infrared Sensors

GND

GNDR30

10 ohm

GNDR31

10 ohm

GNDR32

10 ohm

GNDR25

10 ohm

PG1 PC5

C7

1 uF

12345

Sensor 4

GNDGND

Vcc

PC4

C8

1 uF

12345

Sensor 5

GNDGND

Vcc

PE1

12345

Sensor 6

GNDGND

C9

1 uF

Vcc

PF1

C10

1 uF

12345

Sensor 7

GNDGND

Vcc

PC6

C11

1 uF

12345

Sensor 8

GNDGND

Vcc

PF0

12345

Sensor 9

GNDGND

C12

1 uF

Vcc

12345

Sensor 1

C4

1 uF

GNDGND

Vcc

PG0

12345

Sensor 2

C5

1 uF

GND

Vcc

GNDPE0

12345

Sensor 3

GND

C6

1 uF

Vcc

GND

GNDR26

10 ohm

IR Sensors/SIP resistor

R24

10 ohmGND

R27

10 ohm

GNDR28

10 ohmGND

R29

10 ohm

Failure No. Failure Mode Possible Causes Failure Effects Method of Detection

Criticality Remarks

D1 Output of IR sensor continuously 1

Damaged sensor, R24 – R32, software

Recognition of hand gesture function impaired partially or totally

Observation of LEDs tied to each sensor and input plausibility check by Microcontrollerobservation

Low

D2 Output of IR sensor continuously 0

Damaged sensor, bad connection with header, software

Recognition of hand gesture function impaired partially or totally

Observation of LEDs tied to each sensor and input plausibility check by Microcontrollerobservation

Low

D Infrared Sensors

E Infrared transmitters

12 IR 1

GNDPB4

PB512 IR 2

GND

12 IR 3PB6

GND

R20150 ohms

R18150 ohms

R19150 ohms

IR Transmitters

Failure No. Failure Mode Possible Causes Failure Effects Method of Detection

Criticality Remarks

C1 No output from IR transmitters

IC2, R18, R19, R20, software

Unable to control external sound system

Observation Low Also can be caused by failure of IR LED itself

C2 Output not at the right frequency

IC2, software Unable to control external sound system

Observation Low

E Infrared transmitters