Enclosure not stated · 3 knobs
Digitech PDS2020
Based on the DigiTech PDS2020· 1 other board clones it
- Category
- Delay· Delay Echo and Samplers
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- Delay Echo and Samplers
Schematic
The schematic is the archived file. Open it at Experimentalists Anonymous, or browse its folder.
Parts list 86 rows
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ocr read from an image · sch paired from the schematic · fixed corrected by hand. Check marked values against the build document.
Check before you build · 1 value the reader of this schematic was not sure of
- C48: drawn '15 NP' with no unit; 15uF non-polar assumed
| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 23 | ||||
| R32 | 3.3K | 3.3k | read from the schematic by eye | |
| R60 | 47Kfixed | 47k | ||
| R77 | 200 | 200 | read from the schematic by eye | |
| R78 | 4.7K | 4.7k | read from the schematic by eye | |
| R79 | 2K | 2k | read from the schematic by eye | |
| R80 | 47K | 47k | read from the schematic by eye | |
| R81 | 15K | 15k | read from the schematic by eye | |
| R82 | 10K | 10k | read from the schematic by eye | |
| R83 | 220K | 220k | read from the schematic by eye | |
| R84 | 47K | 47k | read from the schematic by eye | |
| R85 | 100K | 100k | read from the schematic by eye | |
| R86 | 2K | 2k | read from the schematic by eye | |
| R87 | 4.7K | 4.7k | read from the schematic by eye | |
| R88 | 75K | 75k | read from the schematic by eye | |
| R89 | 75K | 75k | read from the schematic by eye | |
| R90 | 22K | 22k | read from the schematic by eye | |
| R91 | 2M | 2M | read from the schematic by eye | |
| R92 | 10K | 10k | read from the schematic by eye | |
| R93 | 10K | 10k | read from the schematic by eye | |
| R94 | 1K | 1k | read from the schematic by eye | |
| R95 | 51 | 51 | read from the schematic by eye | |
| R96 | 22K | 22k | read from the schematic by eye | |
| R97 | 22K | 22k | read from the schematic by eye | |
| Capacitors 35 | ||||
| C38 | .01uF | 10n | read from the schematic by eye | |
| C47 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| C48 | 15uF | 15u | drawn '15 NP': non-polar; unit not drawn; read from the schematic by eye | |
| C49 | 33uF | 33u | drawn '33 LL': low-leakage electrolytic; read from the schematic by eye | |
| C50 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| C51 | 10uF | 10u | electrolytic; read from the schematic by eye | |
| C52 | .1uF | 100n | read from the schematic by eye | |
| C53 | 120pF | 120p | read from the schematic by eye | |
| BP1 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP2 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP3 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP4 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP5 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP6 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP7 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP8 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP9 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP10 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP11 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP12 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP13 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP14 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP15 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP16 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP17 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP18 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP19 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP20 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP21 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP22 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP23 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP24 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP25 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP26 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| BP27 | ? | ? | supply bypass capacitor, drawn 'BP' with no value; read from the schematic by eye | |
| Diodes 6 | ||||
| D12 | 1N4148 | 1N4148 | read from the schematic by eye | |
| D13 | 1N4148 | 1N4148 | read from the schematic by eye | |
| D14 | 1N4148 | 1N4148 | read from the schematic by eye | |
| D15 | 1N4148 | 1N4148 | read from the schematic by eye | |
| D16 | 1N4148 | 1N4148 | read from the schematic by eye | |
| D17 | 1N4148 | 1N4148 | read from the schematic by eye | |
| Transistors 1 | ||||
| Q12 | PN100 | PN100 | read from the schematic by eye | |
| ICs 16 | ||||
| U6 | 74HC195 | 74HC195 | read from the schematic by eye | |
| U7 | 74HC195 | 74HC195 | read from the schematic by eye | |
| U8 | 74HC00 | 74HC00 | read from the schematic by eye | |
| U9 | TL062 | TL062 | read from the schematic by eye | |
| U10 | TL062 | TL062 | read from the schematic by eye | |
| U11 | TL062 | TL062 | only U11B on this sheet; read from the schematic by eye | |
| U12 | 74HC374 | 74HC374 | read from the schematic by eye | |
| U13 | 4464 | 4464 | 64K x 4 DRAM; read from the schematic by eye | |
| U14 | 74HC157 | 74HC157 | read from the schematic by eye | |
| U15 | 4024 | 4024 | read from the schematic by eye | |
| U16 | 74AC04 | 74AC04 | read from the schematic by eye | |
| U18 | ADC0820 | ADC0820 | drawn 'ACD0820'; read from the schematic by eye | |
| U19 | 4464 | 4464 | 64K x 4 DRAM; read from the schematic by eye | |
| U20 | 74HC157 | 74HC157 | read from the schematic by eye | |
| U21 | 74HC4040 | 74HC4040 | read from the schematic by eye | |
| U22 | LM358 | LM358 | only U22B on this sheet; read from the schematic by eye | |
| Potentiometers 3 | ||||
| Del-Time | 100K | 100k | Potentiometer | P4, drawn 'P100K FX'; read from the schematic by eye |
| Speed | 500K | 500k | Potentiometer | P6, drawn 'P500K FX'; read from the schematic by eye |
| Width | 100K | 100k | Potentiometer | P7, drawn 'P100K FX'; read from the schematic by eye |
| Trimmers 1 | ||||
| P3 | 50K | 50k | drawn 'TP50K V'; read from the schematic by eye | |
| Other 1 | ||||
| RN1 | LA10502 | LA10502 | resistor ladder network used as the DAC; read from the schematic by eye | |
Other boards based on the DigiTech PDS2020
- Digitech PDS2020 (PDF) Experimentalists Anonymous