Ericsson A1018S - Abbreviations

A1018s/A1018sc Standard Electrical Repair
4/00021-2/FEA 209 544/16.B 4 (42)
1.2 Abbreviations
B: Crystal.
C: Capacitor.
D: Digital circuit.
F: Over voltage protection.
H: Buzzer, LED, pads for display.
J: Connector.
L: Coil.
N: Analogue circuit.
P: Test point.
R: Resistor.
V: Transistor or diode.
W: Antenna connection.
X: Contact surface at the circuit board.
Z: Filter
AGND: Ground for analogue signal.
AFMS: Audio From Mobile Station
ATMS: Audio To Mobile Station
DCIO: DC voltage used for charging the battery through the system connector.
GND: Ground.
LED3K: Logical signal used to activate the background illumination.
RTC: Real time clock. The clock that keeps track of time and date.
VBATT: Battery voltage (~4.8 V).
VDIG: DC voltage for the processor and memory (3.2 V).
VCORE: DC voltage for the processor and DSP (2.5 V).
VRAD: DC voltage for the radio part (3.8 V).