Nokia 3390, 3390b, 3395 服务手册

NPB-1NB

Baseband Troubleshooting

PAMS Technical Documentation

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"Insert SIM card"

Voltage < 1,5 V on

R220 towards C236
when BSI resistor is

connected

Check X203, R221, R220

and C236.

Vsim, DATA, RST

and CLK lines rises to

5V after power ON

Check X400, R213, C221,

C222, C222, C224, C225.

SIMIF(4:0) lines :

J202, J204, J205, J206 rises to 2,8V

after power ON

Defective CCONT

(N201) or PCB

Yes

Yes

Yes

No

No

No

Defective MAD2 (D300)