Baseband Section; Power Section; Power Block Diagram; Figure 3-1 Power Block Diagram - RCA RDR9000 Service Manual

Service Manual

3. Baseband Section

3.1 Power Section

3.1.1 Power Block Diagram

Power
13.6V
AC-DC
Control
Converter
Board
13.6VDC
Bettery
220VAC
Q1003\Q1004\U1007
9V3A
5VD
DCDC: 5V 3A
Active Regulator 5V
VRTC_3V 1V2_RTC
LDO: 3.3V LDO: 1.2V
300mA 300mA
Q1003\Q1004\U1007
9V3A
5VD
DCDC: 5V 3A
Active Regulator 5V
VRTC_3V 1V2_RTC
LDO: 3.3V LDO: 1.2V
300mA 300mA

Figure 3-1 Power Block Diagram

Switch
LDO: 3.3V
LDO: 5V 300mA
300mA
Switch
LDO: 5V 300mA
LDO: 3.3V
300mA
LDO: 5V 300mA
LDO: 3.3V
300mA
LDO: 3.3V
3V3E
300mA
LDO: 1.8V 1V8D
300mA
DCDC: 1.2V 1V2D
above 800mA
LDO: 3.3V 3V3D
300mA
Switch
LDO: 5V 300mA
LDO: 3.3V
300mA
Switch
LDO: 5V 300mA
LDO: 3.3V
300mA
LDO: 5V 300mA
LDO: 1.8V 1V8D
300mA
DCDC: 1.2V 1V2D
above 800mA
LDO: 3.3V 3V3D
300mA
5
3. Baseband Section
V+
EXT_VCC
V+
9V3A
TX
5VA_RX
9V3A
5VFGU
FGU
3V3DRF
3V3ARF
5VA
DAC
3V3DRF
3V3A
1V8D
Audio
3V3D
5VD
Level Converter
5VD
Front Panel
VDDCR 1.2V internal
PHY
3V3E
VDD/VDDIO
1V8D
Memory
3V3D
1V2D
CVDD
1V2D
RVDD
3V3D
DVDD3318
OMAP
1V8D
-L138
DDR_DVDD18
1V8D
DVDD18
1V2_RTC
RTC_CVDD
3V3D
SN74AHCT594PWR
IO Expand
9V1_RX
5VA_RX
5VFGU
RX
3V3ARF
3V3DRF
9V3A
5VFGU
FGU
3V3DRF
3V3ARF
5VA
DAC
3V3DRF
5VD
Level Converter
1V8D
Memory
3V3D
1V2D
CVDD
1V2D
RVDD
3V3D
DVDD3318
OMAP
1V8D
-L138
DDR_DVDD18
1V8D
DVDD18
1V2_RTC
RTC_CVDD
3V3D
SN74AHCT594PWR
IO Expand