GH688,GA628, Standard Electrical Repairs
4/00021-2/FEA 209 544/1.G 5 (112)
SIMCLK: Clock signal from the processor used for communications with the
SIM.
SIMDAT: Data signal from the processor used for communications with the SIM.
SIMRST: Reset signal from the processor used for communications with the
SIM.
SIMVCC: Feed voltage for the SIM.
SWDC: Switched VBATT.
VANA: DC voltage for the analogue part of the logic (N800).
VBATT: Battery voltage.
VDIG: DC voltage for the processor and memory.
VDSP: DC voltage for the DSP (Digital Signal Processor).
VLCD: DC voltage for the display that controls the contrast.
VRAD: DC voltage for the radio part except the synthesizer.
VRPAD: DC voltage for the radio part in D600 (also used for the top diode and
the buzzer).
VRTC: DC voltage for the real time clock.
VSIMPAD: VDIG voltage that has been switched up to 5V used for SIM.
VVCO: DC voltage for the synthesizer.
I2C: Two line serial communications standard using one clock and one data
line.
LO: Local oscillator.
PWM: Pulse width modulation.
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