Cobba

COBBA GJP ASIC provides an interface between the baseband and the RF-circuitry. COBBA performs analogue to digital conversion of the receive signal. For transmit path COBBA performs digital to analogue conversion of the transmit amplifier power control ramp and the in-phase and quadrature signals. A slow speed digital to analogue converter will provide automatic frequency control (AFC). COBBA is at any time connected to MAD asic with two interfaces, one for transferring TX and RX data between...

Disassembly Instructions

To open the unit the A-Shell has to be removed first. Press the grip markings on both sides of the B-Shell and pull the A-Shell apart from the B-Shell. To open the unit the A-Shell has to be removed first. Press the grip markings on both sides of the B-Shell and pull the A-Shell apart from the B-Shell. Now, press the release springs near the display and pull the unit out of the B-Shell. Now, press the release springs near the display and pull the unit out of the B-Shell. Remove the six screws...

Exchange

For phones which are already repaired from DEFECTIVE one. When Warranty State is USE user can edit repair date. Otherwise field is read only. Format is MMYY, where MM stands for month digits and YY stands for year digits. When state is DEFECTIVE user can edit warranty date. When warranty date is saved warranty state will be EXCHANGE. Format is MMYY, where MM stands for month digits and YY stands for year digits. Closes the dialog box and saves the edited date to the phone. This button is...

Product and Accessory List

BLB-2 Standard Battery Li-ion 750 mAh ACP-7E Standard Charger (EUR) 207-253 Vac ACP-7U Standard Charger (US) 108-132 Vac ACP-7C Standard Charger (US) 198-242 Vac ACP-7X Standard Charger (UK) 207-253 Vac ACP-7H Standard Charger (UK) 180-220 Vac ACP-7A Standard Charger (AUS) 216-264 Vac ACP-8E Travel Charger (EUR) 90-264 Vac ACP-8K Travel Charger (Korea) 90-264 Vac ACP-8X Travel Charger (UK) 90-264 Vac ACP-8U Travel Charger (US) 90-264 Vac ACP-8C Travel Charger (China) 90-264 Vac ACP-8A Travel...

Info

1 Power switch pressed > Digital voltages on in CCONT (VBB) 2 CCONT digital reset released. VCXO turned on 3 62 ms delay to see if power switch is still pressed. RTC (internal in CCONT) can power the phone up by changing RTCPwr to logical 1. IBI can power CCONT up by giving a short pulse (10ms) through the BTEMP line. After powerup BTEMP will act as any other input channel for ADC. When the PURX reset is released, the MAD releases the system reset ExtSysResetX and the internal MCUResetX...

Vpp

The phone doesn't take current at all when the power switch is pressed or when the watchdog disable pin (X001 pin 11) is grounded. Make sure that the battery voltage you use is within the specification, i.e. 3.11 4.2 V. If the voltage is lower, hardware of CCONT (N100) prevents power on. IF battery voltage is inside the specification Change the CCONT. The flash programming can be done via panel connector X001 or via dedicated PCB pads. In production, the first programming is done via panel...