Nokia 9110 Service Manual
PAMS
Technical Documentation
RAE–2
Troubleshooting
Page 7 – 34
Original 02/99
BS1 PDA Components
The following components of the BS1 have an dramatic effect to the
functionality of the module, a fault in any of these may cause the module
to appear totally ‘dead’:
functionality of the module, a fault in any of these may cause the module
to appear totally ‘dead’:
– PDA power unit
– CPU
– PLL clock generation circuit
– UCS Flash chip
– CPU
– PLL clock generation circuit
– UCS Flash chip
If the device has some functionality, then the following components, along
with the ones above, can be tested:
with the ones above, can be tested:
– DRAM chip
– CS1 and CS0 Flash chips
– Handsfree speaker circuitry
– Earpice circuitry
– IR transceiver
– keyboard
– LCD module
– Memory Card interface
– Serial connections (FBUS and system bus)