ER-ADSR-555-01 Rev 3 Assembly Sheet
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Parts List
- Note R4 silkscreen is wrong, s/b 1M
| Find | Qty | Ref Des | Part Number | Find | Qty | Ref Des | Part Number | |
|---|---|---|---|---|---|---|---|---|
| 1 | 3 | R1, R6, R12, R13* | 10K (NOTE) | 11 | 3 | Q1-Q3 | 2N3904 | |
| 2 | 1 | R2 | 22K | 11 | 1 | DS1 | LED, 5MM | |
| 3 | 4 | R3, R5, R7, R10 | 4.7K | 12 | 3 | RV1, RV2, RV4 | A1M | |
| 4 | 1 | R4 | 1M | 13 | 1 | RV3 | B10K | |
| 5 | 3 | R8, R9, R11 | 100 | 14 | 1 | U1 | TL072 | |
| 6 | 5 | D1-D5 | 1N4148 | 15 | 1 | U2 | LM555N | |
| 7 | 1 | C1 | 10nF | 16 | 1 | J1 | Conn_02x05 | |
| 8 | 1 | C2 | 10uF | 17 | 2 | J2, J3 | PJ-301BM | |
| 9 | 1 | C3 | 1uF | |||||
| 10 | 3 | C4-C6 | 0.1uF |
Notes
Master Timing Cap
- Installed C2 (10uF) in machined contact pins
R13 - Decay Noise Fix
- Decay noise fix details - from Rev 2 card
- Added as R13 on Rev 3 card
- 10K on board silkscreen
- Used 3.3K Resistor on Rev 1, Rev 2 cards
