Nokia 5110 Manuale Di Servizio

Pagina di 14
PAMS
Technical Documentation
NSE–1
Tuning Instructions
Page  4
Original  03/98
Required Equipment
 – PC/AT computer with service software; see separate section for
instructions on installation and use.
 – Service accessories; see equipment setup pictures.
 – Multimeter or DVM.
 – GSM radio telephone test station or separate measuring equipment as
follows:
 – RF generator
 – pulse power meter
 – spectrum analyzer
 – attenuator and branching unit
Equipment Setup
Caution:
Make sure that you have switched off the PC and the printer
 before making connections !
Caution:
Do not connect the PKD–1 key to the serial port. You may
damage your PKD–1 !
Attach the protection key PKD–1 to parallel port one (25–pin female
D–connector) of the PC. When connecting the PKD–1 to the parallel port
be sure that you insert the PC end of the PKD–1 to the PC (male side). If
you use a printer on parallel port one, place the PKD–1 between the PC
and your printer cable.
Next connect the M2BUS service cable, DAU–9P, to the serial port
(RS–232) of the computer. Attach one end of the service cable to the PC
serial port and the other end to the service box, JBA–4. For servicing the
phone with the covers in place the service box should always be used.
When the phone covers are removed the jigs should be used.
For audio measurements connect the audio cable, ADS–1, as follows:
– EAR line to AF INPUT of test equipment
– MIC line to MOD GEN OUTPUT of test equipment