M490D
| Type | module |
| Category | INPUT-PRE-AMPS |
| Try it | simulator & front panel · download package (zip) |
| Earliest dated evidence | 1978|11 — title-block date |
| Evidence | "APP 2/78" in PUBLIC/Manuals + tech DOCUMENTS/Modules/M490D - schem-490-02-005.pdf |
| Confidence | high |
| All years found | 1978|11 |
| Used in jobs | R1400-R2400-sales |
| Variants | M490, M490A, M490B, M490C, M490E, M490F, M490G, M490H, M490J, M490K, M490L, M490M, M490N, M490T |
| Folder | Modules/INPUT-PRE-AMPS/M490D |
Connections and circuit (ideal SPICE model)
Drawn live from its RTO-144 connections: run the generator, turn the gain, watch the VU. Open the netlist to see how the model is built.
Pinout & connections
Each contact as its own documents name it: 38 named (38 high confidence). An empty slot is a contact no page names. Hover a contact for its source; the table under the drawing lists them.
pinout (SVG) · connections (SVG) · pins (JSON)
Pin evidence — 45 contacts
| Pin | Signal | Kind | Confidence | Read from | Source |
|---|---|---|---|---|---|
| 1 | PGM 1 OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 2 | PGM 1 OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 3 | PGM 1 OUT, RIGHT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 4 | PGM 1 OUT, RIGHT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 5 | PGM 2 OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 6 | PGM 2 OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 7 | PGM 2 OUT, RIGHT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 8 | PGM 2 OUT, RIGHT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 9 | SHIELO | named, kind not clear | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 10 | NC | not / internally connected | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 11 | AUX OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 12 | AUX OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 13 | AUX OUT, RIGHT also: AUX (table) | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 14 | AUX OUT, RIGHT also: AUX OUT, RIGHT (table) | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 15 | CUE OUT, LEFT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 16 | CUE OUT, LEFT also: CUE OUT , LEFT (table) | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 17 | CUE OUT, RIGHT also: CUE OUT , RIGHT (table) | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 18 | CUE OUT, RIGHT | audio out | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 19 | NC also: NC (table) | not / internally connected | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 20 | NC | not / internally connected | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 21 | NC | not / internally connected | high | table | 1978 - M490D - pinout-490-04-005 (2).pdf, p. 1 |
| 22 | CHASSIS | ground / common | high | table | 1978 - M490D - pinout-490-04-005.pdf, p. 1 |
| 25 | V COM | ground / common | high | table | 1978 - M490D - pinout-490-04-005.pdf, p. 1 |
| P1-1 | LEFT PGRM 1 | audio bus / pair | high | rto-144 | M490D.rto144.json, p. 1 |
| P1-2 | LEFT PGRM 1 | audio bus / pair | high | rto-144 | M490D.rto144.json, p. 1 |
| P1-3 | RIGHT PGRM 1 | audio bus / pair | high | rto-144 | M490D.rto144.json, p. 1 |
| P1-4 | RIGHT PGRM 1 | audio bus / pair | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-A | MIC IN A | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-1 | MIC IN A | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-C | MIC IN B | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-3 | MIC IN B | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-F | INSERT SEND | audio out | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-6 | INSERT SEND | audio out | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-H | INSERT RETURN | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-7 | INSERT RETURN | audio in | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-L | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “Pz-L <” |
| P2-N | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “EXt Ch P2-N on” |
| P2-12 | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “EXt ch Pz - 12 OfF” |
| P2-R | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “Pz - R” |
| P2-15 | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “25v P2-15,W” |
| P2-U | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “P2-U” |
| P2-17 | — | used on a schematic, signal not read | low | schematic | 1978 - M490D - schem-490-02-005.pdf, p. 1 “P2-17” |
| P2-19 | -25 V | power rail | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-20 | COMMON also: COMMON (rto-144) | ground / common | high | rto-144 | M490D.rto144.json, p. 1 |
| P2-21 | +25 V | power rail | high | rto-144 | M490D.rto144.json, p. 1 |
Pictures
1978 - M490D - 001.jpg
1978 - M490D - 002.jpg
1978 - M490D - 490-04-012 - LINE INPUT MODULE FRONT PANEL.jpg
1990 - R1400 - R2400 - 010.jpgDates found in the documents
| Year | Kind | Text | File |
|---|---|---|---|
| 1978|11 | title-block date | APP 2/78 |
1978 - M490D - schem-490-02-005.pdf |
Physical manual inventory
| Item | Location | Status | Scanned |
|---|---|---|---|
| M490D - schem-490-02-005 | DUPLICATE | PDF - Already scanned | |
| M490D - Input - User Guide | DUPLICATE | SCANNED BUT NEEDS STICHING | |
| M490D - pinout-490-04-005 | PDF - Already scanned | ||
| M490D - Input - User Guide | Recently scanned and stiched by WB |
Documents (4)
| Year | File | |
|---|---|---|
| 1978|11 | 1978 - M490D - pinout-490-04-005 (2).pdf | note |
| 1978|11 | 1978 - M490D - pinout-490-04-005.pdf | note |
| 1978|11 | 1978 - M490D - schem-490-02-005 (2).pdf | note |
| 1978|11 | 1978 - M490D - schem-490-02-005.pdf | note |
Photos & scans (3)
| Year | File | |
|---|---|---|
| 1978|11 | 1978 - M490D - 001.jpg | note |
| 1978|11 | 1978 - M490D - 002.jpg | note |
| 1978|11 | 1978 - M490D - 490-04-012 - LINE INPUT MODULE FRONT PANEL.jpg | note |
Consoles & jobs it is connected to (1)
Their own drawings name this module.
| Job | Year | Drawing | Page |
|---|---|---|---|
| R1400-R2400-sales | 1990 - R1400 - R2400 - 010.jpg | 1 |
Named in other drawings & documents (1)
| File | Page |
|---|---|
| 19xx - RTO-144 - Module RTO-144 Jumper calculator.xlsx | 1 |
Drawings (4)
Each scan with its trace laid over it: the slider runs from the scan to the vector drawing. Click one to see it large and save it as SVG, DXF, KiCad, PDF or PowerPoint.
Line Input Module Front Panelviewer
Read from the drawing title blocks.
| Drawing | Title | Date | Drawn by | Checked by | Iss. | Source |
|---|---|---|---|---|---|---|
| 490-02-005 | Crzo Adced | GEB (Gerry E. Bell) | file | |||
| 490-04-005 | Internally Connected Connector Rear View | file | ||||
| 490-04-005 | Line Nput Module Connector Rear View Isshe | file | ||||
| 490-04-012 | Line Input Module Front Panel | file |