| Author | Message | ||
     Sevo Tinkerer Username: Sevo Post Number: 74 Registered: 09-2008 Rating: N/A |
Another snag might be that almost all carbon print resistors I have come across were factory trimmed. That is, they were deposited with some uniform value (or two or three, if they needed more range), and ground down to specific values for calibration. As a consequence they often have odd values that are critical to the function of the board - if such a trimmed resistor is gone to the degree that you cannot meter its working value, you need the original service docs or must reverse engineer the PCB pretty thoroughly to find the proper replacement value. |