Sony PRS-505/SC - Portable Reader System Service Manual page 20

PRS-505
6-8. SCHEMATIC DIAGRAM - MAIN Board (3/10) -
(3/10)
UNREG
(Page 21)
R1802
0
UNREG
C1816
0.47
TP1814
(Page 27)
R1884
10k
8PWR_NEG
8PWR_POS
R1907
100k
GND
(Page 21)
GND
(Page 24)
TP1815
R1898 R1807
1k 10k
D1810
1SS388(TPL3)
R1908
100k
R1832
1k
C1821
0.1
CURRENT
DETECT
IC1803
NJM2904V(TE2)
PRS-505
• See page 29 for IC Block Diagram.
L1811 C1804 D1801
10μH 10 BAT760-115 L1804
R1824 C1801
82k 0.0022
IC1805
LT1931ES5#TR
R1823 R1883
24k 10k
SHDN
NFB
GND R1835 R1836
15k 27k
SW
VIN C1806
10
C1808
10
DC/DC
16V
CONVERTER
R1837
240
D1803
BAT760-115
R1899
100
Q1804
SSM6J07FU
B+ SWITCH
R1910
0
L1812
D1804
10μH
BAT760-115
SWITCHING
REGULATOR
IC1802 C1805
LT3467ES6#TR 10
SHDN FB
SS GND
VIN SW
C1809
10 C1835
16V 0.47
R1861
100k
R1860
100k
C1812 R1863 R1829
0.22 10k 1k
R1821
100k
–
D1807
+
1SS362-TE85L
+
–
C1822
0.1
R1895
27k
Q1809
2SA1832F-GR
REGULATOR
D1805
1SS362-TE85L
R1894 R1893 C1834 C1845
24k 100k 1 0.1
C1843
0.1
Q1806
2SC4738F-Y/GR
L1803
REGULATOR
R1890
22k
C1879
0.01 R1827
91k
C1855
0.1
R1876
10k
R1828
30k
R1826 C1842 R1891
11k 0.1 33k
D1802
1SS362-TE85L
C1810
R1892
1
100k
R1842
47k
R1841 TP1816
4.7k
RV1801 COMPARATOR,
10k
NJM2904V(TE2)
–
+
+
–
C1885
0.1
R1840
3.3k
D1808 C1884
R1816
1SS387-TPL3
100k
D1809
1SS387-TPL3
R1849 R1814 R1848 R1815
1k 1k 100k 680k
20 20
R1882
10k
3 2 1
Q1814
HN1B04FE-Y/GR
B− SWITCH
4 5 6
R1880
R1881
10k
100k
D1813
1SS362-TE85L
C1818
1
R1844
30k
R1886
S
56k
Q1822
2SJ305(TE85L)
R1887
TP1813 56k
Q1805
2SC4738F-Y/GR
R1889
10k
Q1805,1822
B+ SWITCH
R1885
R1888 C1844
C1814 100k
100k 0.1
1
VCOM AMP
IC1807
VCOM SWITCH
TP354
COM VCC
INH CH0
VEE CH1
C1866
100
GND A
6.3V
C1819
IC1806 0.1
TC7W53FK
C1823
0.1
0.1
R1843
10k
8-15V
8+15V
8-V3
(Page 21)
8-ROW_VCC
8--20V
(Page 21)
8-25V
8-5V
8-COMMON
8-BORDER
Q1802
2SC4738F-Y/GR
REGULATOR
R1845
15k
R1846 R1847
1k 1M
8COM_CTRL
8PWR_GATE
8BORDER0
8BORDER1
(Page 21)