103

7. CIRCUIT DIAGRMA

104

105

106

107

108

109

110

111

114

9. PCB LAYOUT

U401 Memory

No Booting

U101 PAM

(SKY77518)

No TX & No RX

U301 BB chipset (PMB7880)

No power on

No service etc

X302

32.768KHz Crystal

No Booting

X301

26MHz Crystal

No TX & No RX

J601 Up board connector

LCM no display

Keypad not working

U901

FM radio

No FM

U803 Charging IC

No Charging

115

J801

Battery Connector

No Charging

J702

SIM connector

No SIM

J701

I/O Connector

No Charging etc

J802

Vibrator connector

No Vibrator

U501 Speaker AMP

No Speaker

J603

Keypad connector

Keypad not working