Explanations - Ericsson A2618s Troubleshooting Manual

1 Explanations

1.1 Component Placement Reference
For component placement see doc.1078-2/FEA 209 544/25
1.2 Service Test Menu
Code to enter Service Test Menu, > * < < * < *
1.3 External connectors
External units are connected to the transceiver by means of an 11-pin connector on the bottom
of the phone.
The pin numbering is starting from the right when looking on the system connector with the
front up.
4/00021-2/FEA 209 544/25 A
Pin Signal
1 DCIO
2 GND
3 VPPFLASH
4 GND
5 CFMS_PHFS
6 CTMS
7 DFMS
8 DTMS
9 CTS_ON
10 AFMS/RTS
11 ATMS
Function
DC+ pole for charging phone battery and external
accessory powering.
Digital GND and DC return.
Flash memory Vpp /Service.
Audio signal GND, 0 V reference.
Accessory Control From Mobile Station serial (ACB)
communication/ Portable Hands Free Sense.
Accessory Control To Mobile Station serial (ACB)
communication.
Data From Mobile Station, serial bus communication.
Data To Mobile Station, serial bus communication/
External accessory Power on
Mobile station Clear To Send/ ON REQuest
Audio from Mobile station/ Ready To Send
Audio to Mobile station
Trouble Shooting Guide, Standard
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