Μsd Card Interface; User Interface; Display Module - Nokia 6267 RM-210 Service Manual

RM-210
System Module
Figure 20 SIM interface
The EM ASIC handles the detection of the SIM card. The detection method is based in the BSI line. Because of
the location of the SIM card, removing the battery causes a quick power down of the SIM IF.
The SIM interface supports both 1.8 V and 3.0 V SIM cards. The SIM interface voltage is first 1.8 V when the
SIM card is inserted, and if the card does not response to the ATR a 3 V interface voltage is used.
µSD card interface
The µSD card is connected to the engine by an external level shifter and ESD protection filter. Supplied
voltages:
• VMMC: 2.85 V (from level shifter)
• VIO: 1.8 V (from AVILMA)
The card removal is detected by a push detect switch.
Hot swap is supported, which means that the card may be plugged in/out at any time, without removing the
battery.

User interface

Display module

This phone has two displays; one main display and one small display. They are both included in the same
module and cannot be replaced separately. It does not require any tuning in service.
The interconnection between the LCD module and the engine is implemented with a 24-pin board-to-board
connector.
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