Peavey DARK MATTER DM112 · powered speaker
58 components · 11 parts identified · 1 photo. Tap a marked part to see what it is.
This board (original) fills the same place as No relay input board (factory revision: no rl7) - a unit has one of them, not both.
83 traced nets on this board are available to technicians. See plans
| Designator | Part (number or value) | Marking | Description | Package |
|---|---|---|---|---|
| C131 | 1uf 50v smd | |||
| C133 | 47uf 25v smd | |||
| CN1 | - | 36vac in connector for ac detect muting/unmuting, center tapped to gnd. | ||
| CN5 | - | lcd connector | ||
| D13, D14 | - | diode | ||
| IC4, IC8 | N5532A | |||
| IC7 | AT9555PW | i2c bus expander | ||
| IC9 | TL072C | |||
| J5 | - | input combo jack connector | ||
| J7 | - | power connector | ||
| J11 | - | audio out connector | ||
| L7, L8 | - | 0 | ||
| Q7 | J3Y | the ac turns on q7 which turns off q8 allowing c133 to charge up through r194 and then turn on relay switches q9 and q10 | ||
| Q8 | J3Y | |||
| Q9 | J3Y | darlington with q10 | SOT-23 | |
| Q10 | J3Y | darlington with q9 | SOT-23 | |
| R4 | - | 2.2k | ||
| R7 | - | 4.7k | ||
| R177 | - | r1 of potential divider 22k | ||
| R185 | - | r2 of potential divider 100k | ||
| R194 | - | 220k | ||
| R196 | - | 103 | SMD Resistor 10kΩ | 0603 |
| RL7 | A5W-K | mute relay | dip-10 | |
| SW1 | - | mic/line switch | ||
| U2 | 74HC02D | quad 2in nor gate | ||
| U3 | 74HC14D | hex schmitt inverter | ||
| U4 | 74HC86D | quad 2in xor gate | ||
| VR1 | - | volume control | ||
| - | encoder | |||
| - | pin1 | |||
| - | front led connector | |||
| - | pin 1 | |||
| NJM4580 | output opamp |
Marked, not identified yet: C2, C9, C13, C14, C16, C39, C56, J6, J10, L6, L13, R10, R38, R39, R51, R53, R55, R56, R187, VR2, ZD1, ZD2