Nokia NSM-2 Series Disassembly & Troubleshooting Instructions page 14

NSM–2
Disassembly & Troubleshooting Instructions
Vbb
Vcore
Vcobba
Vref
Vbat
VXO
VRX
VTX
Vsyn1
Vsyn2
Power up sequence test:
Cconts digital parts keep MAD in reset by keeping PURX down for a
delay of 62ms.
Here is shown the start up sequence picture.
Ch1 = Vbb
Ch2 = VXO
Ch3 = SleepClk
Ch4 = PURX (see picture B)
Page 14
= 2.7V – 2.87V
= 1.3V – 2.65V
= 2,67V – 2.85V
= 1.48V – 1.523V
= 3.11V – 4.2V
= 2,67V – 2.85V
= 2,67V – 2.85V
= 2,67V – 2.85V
= 2,67V – 2.85V
= 2,67V – 2.85V
E Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Issue 1 12/1999