Differences

This shows you the differences between two versions of the page.

--- mbhp_genesis [2017/08/18 21:11] – [Parts list] sauraen
+++ mbhp_genesis [2023/09/05 04:19] (current) – [Component stuff chart] sauraen
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-{{http://midibox.org/forums/uploads/monthly_2015_11/large.mbhp_genesis_1e_front.jpg.97a341757653897ba6218555ea690650.jpg?640}}
+{{http://midibox.org/forums/uploads/monthly_2015_11/large.mbhp_genesis_1e_front.jpg.54c08f42d0fd242b1039f5e83a067ddd.jpg?640}}
 ====== Summary ======
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 | 1 | Y2 or Y4 | 3.58 MHz (or 4 MHz) oscillator | 520-TCH357-X | Oscillator (either half-size/8-DIP or 5x7mm SMD) at desired PSG frequency. MIDIbox Genesis firmware will correct frequencies to match original VGM pitch. |
 | 3 | Q1, Q2, Q3 | 2N7000 or BS170 | 821-TSM2N7000KC821-T or 512-BS170 | Any small-signal N-channel MOSFET with the gate as the center pin; the board silkscreen is for 2N7000, if you use BS170 (as I did) mount them backwards to match the source and drain pins. |
-| - | J1, J2, J7, J10 | 0.1" stackable pin socket/headers | 782-A000086 | Pin sockets with long pins (from Arduino shields), for stacking the boards together. Buy in bulk and combine them for the appropriate sizes. Use a regular pin header for the lowest board in the stack; have each header mounted with the socket below the board and the pins sticking out the top. See this photo of the stack. |
+| - | J1, J2, J7, J10 | 0.1" stackable pin socket/headers | 782-A000086 | Pin sockets with long pins (from Arduino shields), for stacking the boards together. Buy in bulk and combine them for the appropriate sizes. Use a regular pin header for the lowest board in the stack; have each header mounted with the socket below the board and the pins sticking out the top. See [[http://midibox.org/forums/uploads/monthly_2017_08/large.finished_inside2.jpg.459682a854f131f34f39a57ba6cdb27a.jpg|this photo]] of the stack. |
 | - | J5, J6, J8 | 0.1" pin headers | Buy in bulk | Headers; J5 and J6 are individual on each board if used, and J8 is only on the final board. |
-| - | J10 | 0.1" dual row pin headers | Buy in bulk | Headers; J10 connects all boards together, so put sockets on one side of the boards and have the pins sticking through on the other sides. |
 | 1 | L1 | 10 uH inductor | 434-SMCCN-100K-02 | For LC filter for analog power rail |
 | 2 | C12, C13 | 100 uF electrolytic | Buy in bulk | Power rail filter caps |
@@ Line 198: / Line 197: @@
 ^ Parts ^ A ^ B ^ C ^ D ^ E ^ F ^ G ^ H ^ I ^ J ^ K ^ L ^ M ^ N ^ O ^ P ^
-| U1, C1, C14, C15, Y1 or Y3, C20, C21, R11, R12, R15, R16, C23, C24, R18, R19, R21, R22 | X |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
+| U1, C1, C14, C15, Y1 or Y3, C20, C21, R11, R12  | X |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
 | R8, R9 |   | X |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
 | R33, R34 |   |   | X |   |   |   |   |   |   |   |   |   |   |   |   |   |
-| U2, C2, Y2 or Y4, U10, C10, Q2, Q3, R4:6, R10, C22, R13, R17, C25, R20, R23, R24 |   |   |   | X |   |   |   |   |   |   |   |   |   |   |   |   |
+| U2, C2, Y2 or Y4, U10, C10, Q2, Q3, R4:6, R10, C22, R13 |   |   |   | X |   |   |   |   |   |   |   |   |   |   |   |   |
-| J1, C12, L1, C13, C11, U4, C4, C16, R31, R32, C18, C19, U5, C5, C17, R25, R26, C29, C30, C31, C32, R27:30, J8 | X |   |   | X |   |   |   |   |   |   |   |   |   |   |   |   |
+| J1, C12, L1, C13, C11 | X |   |   | X |   |   |   |   |   |   |   |   |   |   |   |   |
 | J6, R7 |   |   |   |   | X |   |   |   |   |   |   |   |   |   |   |   |
 | U7, C7 |   |   |   |   |   | X | X |   |   |   |   |   |   |   |   |   |
 | U8, C8 |   |   |   |   |   | X | X | X |   |   |   |   |   |   |   |   |
 | U6, C6, Q1, R1 |   |   |   |   |   |   | X |   |   |   |   |   |   |   |   |   |
-| U9, C9, C26:28 |   |   |   |   |   |   |   | X |   |   |   |   |   |   |   |   |
+| U9, C9 |   |   |   |   |   |   |   | X |   |   |   |   |   |   |   |   |
 | J5 |   |   |   |   |   |   |   |   | X |   |   |   |   |   |   |   |
 | Short U3:5 to U3:15 |   |   |   |   |   |   |   |   |   | X |   |   |   |   |   |   |
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 | Short U8:3 to U8:6  |   |   |   |   |   |   |   |   |   |   | X | X |   |   |   |   |
 | U3, C3, J2 |   |   |   |   |   |   |   |   |   |   |   | X | X |   |   |   |
+| U4, C4, U5, C5, C16:19, C23:32, R15:32, J8  |   |   |   |   |   |   |   |   |   | X | X | X | X |   |   |   |
 | Short U3:13 to J3:2, short U3:12 to J3:1 |   |   |   |   |   |   |   |   |   |   |   |   |   | X |   |   |
 | Short U3:11 to J3:2, short U3:10 to J3:1 |   |   |   |   |   |   |   |   |   |   |   |   |   |   | X |   |