Apple-II-R0
reifsnyderb
Schematic for Apple II System Board Revision 0
Components (75)
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | 2N4258 | |
| Q3 | 2N3904 | TRANS NPN 40V TO-92 |
| Q4 | MPSA13 | |
| A2 | 74LS00 | |
| A3 | 74LS166 | |
| A5 | 2513 Char ROM | |
| A7 | Keyboard_Connector | |
| A8,B6,B7,C12,J1 | 74LS257 | |
| A9 | 74LS151 | |
| A10,B4,B9 | 74LS194 | |
| B1 | 74LS175 | |
| B2 | 74LS86 | |
| B3 | 555 | IC OSC SINGLE TIMER 100KHZ 8-DIP |
| B5,B8 | 74LS174 | |
| B10,J13 | 74LS74 | |
| B11,H1 | 74LS08 | |
| B12 | 74LS11 | |
| B13 | 74LS02 | |
| C1,E11-E13 | 74LS153 | |
| C2 | 74LS195 | |
| C3-C10,D3-D10,E3-E10 | 4116 | |
| C11 | 74LS04 | |
| C13 | 74LS51 | |
| C14 | 74LS32 | |
| Cap1,Cap3,Cap4,Cap16-Cap49 | 0.1uF | |
| Cap2 | 47pf | |
| Cap5-Cap8 | .022uF | |
| Cap9-Cap12 | .1uF | |
| Cap13-Cap15 | 0.1uf | |
| CP0 | Power Connector | |
| CR1 | 1N914 | |
| CT3 | 5-50pF | |
| D1,E1,F1 | Memory Type Sel | |
| D2 | 74LS20 | |
| D11-D14 | 74LS161 | |
| E2,F2 | 74LS139 | |
| E14 | 74LS283 | |
| F12,F13,H2,H12 | 74LS138 | |
| F14 | 74LS259 | |
| H3-H5 | 8T97 | |
| H7 | 6502 | |
| H10,H11 | 8T28 | |
| H13 | NE558 | |
| H14 | 74LS251 | |
| J0 | Cassette Data In | |
| J2 | Cassette Data Out | |
| J3 | Conn_01x16 | |
| J14 | GAME_IO_Conn | |
| J18 | Aux Video | |
| JP-User1 | Jumper | |
| K13 | MA741 | |
| K14 | RCA Connector | |
| L1 | 27uH | |
| MH1-MH7 | MountingHole | |
| R1 | 330R | |
| R2,R4 | 47R | |
| R3 | 150R | |
| R5,RA02,RA03 | 1K | |
| R6 | 2K7 | |
| R7 | 1K5 | |
| R8 | 2K | |
| R9 | 10R | |
| R10,R25 | 27R | |
| R11 | 200R | |
| R12,R16,R17,R19,R29 | 12K | |
| R13 | 3M3 | |
| R15 | 220k | |
| R18,R20-R23 | 100R | |
| R24 | 47K | |
| RA01 | 1k | |
| ROM-D0,ROM-D8,ROM-E0,ROM-E8,ROM-F0,ROM-F8 | ROM_Chip | |
| SLOT0-SLOT7 | 50 pin slot | |
| SPKR1 | Speaker Connector | CONN HEADER VERT 2POS 2.54MM |
| TP1,TP2 | TestPoint | |
| Y1 | XT0001 |