Sony DSLR-A500 Service Manual page 11

4-9. POWER BLOCK DIAGRAM (5/6)
AM-019 BOARD (5/5)
IS_6.0V
IS_2.0V/2.5V
IS_-2.2V
G
A_3.15V_2
POWER (1/6)
(PAGE 4-5)
CIS_3.3V
D_1.8V_CIS
U
PG_1.8V_SLVDS
POWER (4/6)
(PAGE 4-8)
IS_PWR_ON1
IS_PWR_ON2
IS_PWR_ON3
IS_PWR_ON4
IS_PWR_ON5
IS_PWR_ON6
V
POWER (4/6)
(PAGE 4-8)
IS_PWR_ON7
IS_PWR_ON8
05
DSLR-A500/A550_L3
( ) : Number in parenthesis ( ) indicates the division number of schematic diagram where the component is located.
A550
IC1703 , Q1702, Q1724
4.5V REG
(19/21)
IC1702 , Q1701, Q1731
4.5V REG
(19/21)
4 VIN
3
VOUT
1 CONT
IC1701
2.5V REG
(19/21)
A500
A500
A500
A550
R1711
Q1703, Q1732
R1709
B+ SWITCH
A550 R1795
Q1704, Q1708,
Q1713, Q1733
B+ SWITCH
A550
R1713
R1705
A550
A500
R1714
A500
R1708
CN1701
A500
A500
Q1734, Q1735 R1710
B+ SWITCH
R1787,
A550
R1724
Q1709, Q1716,
Q1719, Q1725
B+ SWITCH
A500
L1702
A500 Q1723, Q1729
DISCHARGE
A550
R1733
Q1722, Q1726
B+ SWITCH
A550
R1727
Q1711, Q1718,
Q1721, Q1728
B+ SWITCH
A550
R1703
Q1715, Q1730
B+ SWITCH
L1701
A500
A500
R1706
A500
R1779
A500
R1704
A550
R1778
A550
R1707
4-9
A500
VDDSV/CM (A4.5V) : A500 VDDSV/CM (A4.5V)
VDDREF (A4.5V) : A550
VDDSUB (A4.5V)
VDDSC (D2.5V)
VDDCB (A2.0V)
VDDCN (D2.0V)
VSSVRL (A-2.2V)
VDDDA (A2.5V)
VDDSN (D2.5V)
VDDPL (2.5V) : A500
VDDCP/SV/CM (4.5V) : A550 VDDIO (D3.15V)
VDDVRH (A3.3V)
VDDLV (D1.8V)
VDDSUB (A4.5V)
26
VDDSUB (A4.5V)
A550
VDDSC (D2.5V) : A500
VDDSC/PL (D2.5V) : A550 VDDREF (A4.5V)
VDDCP/SV/CM (4.5V)
VDDCB (A2.0V) : A500
VDDSUB (A4.5V)
VDDCB (A2.5V) : A550
VDDSC/PL (D2.5V)
VDDCN (D2.0V) : A500
VDDCB (A2.5V)
VDDCN (D2.5V) : A550
VDDCN (D2.5V)
VSSVRL (A-2.2V)
22 VSSVRL (A-2.2V)
VSSVRL (A-2.2V)
VDDDA (A2.5V)
VDDSN (D2.5V)
VDDDA (A2.5V)
VDDDA (A2.5V) VDDVRH (A3.3V)
VDDLV (D1.8V)
PVLM (A2.5V)
20
PVLM (A2.5V)
VDDSN (D2.5V)
VDDSN (D2.5V)
VDDIO (D3.15V) : A500
VDDIO (D1.8V) : A550
VDDVRH (A3.3V)
24
VDDVRH (A3.3V)
VDDLV (D1.8V)
VDDLV (D1.8V)
VDDCM_ON : A500
50
VREF_ON : A550
VDDDA_ON
49
VDDDA_ON
VDDSV_ON
51
VDDSV_ON
VDDPL (2.5V)
X
PVLM (A2.5V)
POWER (6/6)
(PAGE 4-10)
VDDCM_ON
VDDDA_ON
VDDSV_ON
Y
PVLM (A2.5V)
POWER (6/6)
(PAGE 4-10)
VDDIO (D1.8V)
VREF_ON
VDDDA_ON
VDDSV_ON