Nokia NSM-4 Series Disassembly & Troubleshooting Instructions page 23

PAMS Technical Documentation
Headset earpiece doesn't
work and there isn't any
mechanical problem
Check R 257,R256, R270, L284, L283
C284, C283, C 296, C 297, C261and C255
Change the COBBA N250
Headset earphone doesn't
work and there isn't any
mechanical problem
Check R 257,R256, R270, L284, L283
C284, C283, C 296, C 297, C261and C255
Change the COBBA N250
Issue 1 01/2002
Disassembly & Troubleshooting Instructions
OK
OK
E Nokia Corporation
NSM–4
Page 23