Siemens SXG 75 Service Repair Documentation page 19

6.2.2 MSM6250 power supplies
The supplies used by the MSM6250 are generated by the PM6650 (Section 5).
They are as follows:
Supply Name
VREG_MSMC
VREG_MSME
VREG_MSMA
VREG_MSMP
MSM6250 power supplies
Each supply has a zero-ohm series resistor (R804, R805, R806, R808) before the MSM6250
decoupling capacitors. The supplies become active while the phone is in the reset state during
"Phone On" operation (PON_RST_N from the PM6650 is low). They remain active until the phone is
turned off.
Technical Documentation
TD_Repair_L3_SXG75_R1.0.pdf
Value Power Domain
1.375 V (±3%) Digital Core only.
1.850 V (±3%)
SDRAM interface (EBI1 bus), NAND FLASH
and LCD interface (EBI2 bus), supply voltage
for IO Pad group 2
2.600 V (±3%) Analog circuits
2.600 V (±3%) Supply voltage for IO pad group 3
Company Confidential
2006©BenQ
Release 1.0
01/2006
Page 19 of 73