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Phone: +86 16626708626Description
Key Technical Specifications
- Model: E 169.1
- Brand: C. Wilh. Stein Sohn
- Product Type: PCB card / power supply card
- Variants: E 169.1 A, E 169.1 B, E 169.1(1), E 169.1(2)
- Supply Rails: +5 V, ±12 V, ±15 V, ±22 V
- Weight: 350 g
- Condition: Used
- Application: Marine and industrial control systems
- Compatibility Note: Verify revision and suffix before ordering
- Replacement Note: Match connector layout and site wiring exactly
Product Introduction
C. Wilh. Stein Sohn E 169.1 is a PCB card used in marine and industrial control equipment, with multiple revision markings including E 169.1 A and E 169.1 B. The available listing data shows supply rails of +5 V, ±12 V, ±15 V, and ±22 V, so this is a board that must be matched carefully to the existing cabinet.
This model is usually purchased as a replacement for legacy systems where original stock is limited. Before swapping it in, confirm the exact suffix, connector style, and power rails, because a close-looking board can still fail at the backplane or power stage.
- E 169.1
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No power-up or dead board | Missing supply rail or blown fuse | High | Measure each rail at the card edge or terminal points with a multimeter | Check cabinet power and fusing before replacing the card |
| Wrong output or unstable behavior | Revision mismatch or board incompatibility | High | Verify the suffix on the old board and compare it to the replacement | Match the exact revision before installation |
| Board runs hot | Power rail issue or internal failure | High | Measure rail voltages and check board temperature after startup | Inspect supply quality and ventilation, then retest |
| Intermittent faults | Loose connector or backplane contact | High | Reseat the board and inspect edge connectors for corrosion or bent pins | Clean, reseat, and verify mechanical fit |
| System alarm after swap | Configuration mismatch | Medium | Compare the old board markings, jumpers, and any logged settings | Copy the original configuration before power-up |
| Unit works on bench but not in machine | Host system or wiring mismatch | Medium | Test the board in the original rack with known-good wiring | Check the machine-side wiring and compatibility first |
If you are stuck, send technical support photos of the nameplate, connector side, board revision, and any fault logs.
Frequently Asked Questions
Q: Is Stein Sohn E 169.1 the same as E 169.1 A or B?
A: Not always. The suffix matters. Treat E 169.1, E 169.1 A, and E 169.1 B as separate versions until you confirm the board markings match your original unit.
Q: What power rails does this card use?
A: The listing data shows +5 V, ±12 V, ±15 V, and ±22 V. Verify the exact rail requirements in your cabinet before installing it.
Q: Is this part new or used?
A: The available listing data identifies it as used. That usually means surplus pricing, but you should still ask for test status and cosmetic condition.
Q: Can I hot-swap it?
A: Do not assume so. Unless the OEM documentation says it is hot-swappable, power down first. Legacy PCB cards can be damaged by live insertion.
Q: Why is this cheaper than factory-new stock?
A: It is usually cheaper because it is used or surplus, not sealed OEM inventory. That is normal for older industrial parts, but you should confirm test results and warranty before buying.
Q: What should I check before ordering?
A: Check the exact suffix, connector layout, supply rails, and cabinet wiring. Those are the items that usually cause a bad fit, not the front label.
Q: What if the replacement still faults after installation?
A: Recheck power, wiring, and revision first. In these older systems, the “new” board is often fine and the problem is a mismatch upstream.
