Sony PRS-505/SC Service Manual - Page 26

PRS-505 6-14. SCHEMATIC DIAGRAM - MAIN Board (9/10) - • See page 29 for IC Block Diagram. (9/10) (Page 25) A(24-0) V2 GND D(31-0) L1101 22μH C1101 10 C1103 0.1 D0 D1 D2 D3 D4 D5 D6 D7 C1104 0.1 BUFFER #CS0 CS1 BR/W (Page 22) TP1543 (Page 23) R/#W #OE EB2 #CS0 CS1 CS3 CS4 CS5 HRESET CS4 D8 D9 D10 D11 D12 D13 D14 D15 C1108 0.1 R/W OE EB2 TP1542 BUFFER AND GATE, INVERTER IC1101 TC7MP245FK(EL) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 IC1102 TC7MP245FK(EL) DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 IC1107 TC7MP01FK VCC GND (Page 22) (Page 22) HRESET CS3 BHRESET BUFFER IC1116 TC7SZ125FU VCC GND (Page 18) PRS-505 C1112 0.1 TP1546 TP1547 TP1548 TP1549 TP1550 TP1551 TP1552 TP1553 BD0 BD1 BD2 BD3 BD4 BD5 BD6 BD7 BUFFER IC1117 TC7SZ125FU VCC A1 GND C1109 0.1 TP1554 TP1555 TP1556 TP1557 TP1558 TP1559 TP1560 TP1561 BD8 BD9 BD10 BD11 BD12 BD13 BD14 BD15 R/W R1103 0 C1114 0.01 C1115 0.01 OE A2 BA3 TP1564 A4 BA5 TP1566 A6 BA7 TP1568 EB2 R/W C1110 0.1 BA9 TP1570 BA11 TP1572 BA13 TP1574 BA15 TP1576 A8 A10 A12 A14 BA17 TP1578 BA19 TP1580 BA21 TP1582 BA23 A16 A18 A20 A22 TP1584 BUFFER IC1112 SN74LVC244APWR 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 IC1113 SN74LVC244APWR 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 26 26 BA1 TP1562 BA2 A3 TP1563 BA4 A5 TP1565 BA6 A7 TP1567 BUFFER A9 A11 A13 A15 BA8 TP1569 BA10 TP1571 BA12 TP1573 BA14 TP1575 A17 A19 A21 A23 BA16 TP1577 BA18 TP1579 BA20 TP1581 BA22 TP1583 BD(31-0) BA(24-0) (Page 22) BOE BEB2 (Page 22)