Sony PRS-505/SC Service Manual - Page 20

PRS-505 6-8. SCHEMATIC DIAGRAM - MAIN Board (3/10) - • See page 29 for IC Block Diagram. UNREG (Page 21) UNREG (Page 27) 8PWR_NEG 8PWR_POS GND (Page 21) GND (Page 24) (3/10) R1802 0 C1816 0.47 R1884 10k TP1814 R1907 100k C1808 10 16V L1811 10μH IC1805 LT1931ES5#TR SHDN NFB GND SW VIN DC/DC CONVERTER C1804 D1801 10 BAT760-115 L1804 R1824 82k R1823 24k C1806 10 R1835 15k C1801 0.0022 R1883 10k R1836 27k D1803 BAT760-115 R1837 240 R1895 27k Q1809 2SA1832F-GR REGULATOR D1805 1SS362-TE85L C1843 0.1 R1894 24k R1893 100k C1834 1 C1845 0.1 C1818 1 3 4 R1881 100k R1882 10k 2 1 5 6 Q1814 HN1B04FE-Y/GR B− SWITCH R1880 10k D1813 1SS362-TE85L V+ - V- V+ V- R1898 1k TP1815 R1807 10k L1812 10μH D1810 1SS388(TPL3) R1908 100k C1809 10 16V C1835 0.47 R1899 100 R1910 0 Q1804 SSM6J07FU B+ SWITCH D1804 BAT760-115 SWITCHING REGULATOR IC1802 LT3467ES6#TR SHDN FB SS GND VIN SW C1805 10 R1832 1k C1821 0.1 R1861 100k R1860 100k C1812 0.22 R1821 100k R1863 10k R1829 1k CURRENT DETECT IC1803 NJM2904V(TE2) - + + - D1807 1SS362-TE85L C1822 0.1 L1803 C1879 0.01 R1827 91k R1876 10k R1828 30k R1826 11k D1808 1SS387-TPL3 R1890 22k Q1806 2SC4738F-Y/GR REGULATOR C1855 0.1 C1842 0.1 R1891 33k R1892 100k D1802 1SS362-TE85L C1810 1 C1814 1 TP1813 R1889 10k R1886 56k R1887 56k Q1805 2SC4738F-Y/GR S Q1822 2SJ305(TE85L) Q1805,1822 B+ SWITCH R1888 100k R1885 100k R1844 30k Q1802 2SC4738F-Y/GR REGULATOR C1844 0.1 R1845 15k R1846 1k R1847 1M R1842 47k R1841 4.7k RV1801 10k R1840 3.3k C1885 0.1 TP1816 COMPARATOR, VCOM AMP IC1807 NJM2904V(TE2) - + + - TP354 C1866 100 6.3V C1823 0.1 VCOM SWITCH COM VCC INH CH0 VEE CH1 GND A IC1806 TC7W53FK C1819 0.1 R1816 100k C1884 0.1 R1864 680k D1809 1SS387-TPL3 R1849 1k R1814 1k R1848 100k R1815 680k R1843 10k 8-15V 8+15V 8-V3 (Page 21) 8-ROW_VCC 8--20V 8-25V 8-5V 8-COMMON 8-BORDER (Page 21) 8COM_CTRL 8PWR_GATE 8BORDER0 8BORDER1 (Page 21) PRS-505 20 20