Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Ericsson Mobile Phones ERICSSON A2618S ERICSSON A2618S 1
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Trouble Shooting Guide, Standard
Trouble Shooting Guide, Standard
Applicable for A2618s and A2618sc
Contents
1 Explanations ....................................................................................................................2
2 Network Problems...........................................................................................................5
3 On/Off Problems .............................................................................................................8
4 Audio Problems .............................................................................................................10
5 Display/Illumination Problems ....................................................................................13
6 Capacity/Charging Problems.......................................................................................17
7 SIM Problems................................................................................................................18
8 Key Problems.................................................................................................................20
9 Alert Problems...............................................................................................................21
10 Data Communication Problems...................................................................................22
11 Software Problems ........................................................................................................22
12 Other Problems .............................................................................................................23
13 Revision History ............................................................................................................24
4/00021-2/FEA 209 544/25 A Approved according to 1776-2/FEA 209 544
Trouble Shooting Guide, Standard
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.
Pin Signal Function
1 DCIO DC+ pole for charging phone battery and external
accessory powering.
2 GND Digital GND and DC return.
3 VPPFLASH Flash memory Vpp /Service.
4 GND Audio signal GND, 0 V reference.
5 CFMS_PHFS Accessory Control From Mobile Station serial (ACB)
communication/ Portable Hands Free Sense.
6 CTMS Accessory Control To Mobile Station serial (ACB)
communication.
7 DFMS Data From Mobile Station, serial bus communication.
8 DTMS Data To Mobile Station, serial bus communication/
External accessory Power on
9 CTS_ON Mobile station Clear To Send/ ON REQuest
10 AFMS/RTS Audio from Mobile station/ Ready To Send
11 ATMS Audio to Mobile station
4/00021-2/FEA 209 544/25 A 2(24)
Trouble Shooting Guide, Standard
1.4 Abbreviations
B: Crystal.
C: Capacitor.
D: Digital circuit.
H: Buzzer, LED, and pads for display.
J: Connector.
L: Coil.
N: Analogue circuit, power amplifier at some units.
R: Resistor.
S: Keyboard pads.
V: Transistor, diode.
X: Contact surface on the circuit board.
Z: Filter.
DCIO: DC voltage through the system connector for charging.
GND: Ground.
RTC: Real Time Clock, the clock that keeps track of time.
SIMCONCLK: Signal from the processor used for communication to SIM, clock-signal.
SIMDCONAT: Signal from the processor used for communication to SIM, data-signal.
SIMCONRST: Signal from the processor used for communication to SIM, reset-signal.
SIM VCC: Feed voltage for SIM, 5.0 ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo