atsmini:index
Differences
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| atsmini:index [2026/07/09 06:37] – natalie | atsmini:index [2026/07/13 19:05] (current) – natalie | ||
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| *TODO: Need to verify this on V4b since it has a headphone amp which is not present on the original. The mechanism by which the speaker is disabled may be different. Regardless it is still not usable when headphones are plugged in on V4b | *TODO: Need to verify this on V4b since it has a headphone amp which is not present on the original. The mechanism by which the speaker is disabled may be different. Regardless it is still not usable when headphones are plugged in on V4b | ||
| + | |||
| + | ===== Headphone Amp ===== | ||
| + | LM4809 | ||
| + | |||
| + | ===== FM Stereo ===== | ||
| + | Why is the sound mono despite having a strong signal with the stereo indicator lit? | ||
| + | |||
| + | Not a hardware fault, the two discrete paths from tuner -> HPA -> headphone jack are fine. | ||
| + | |||
| + | Seems default FM stereo blend settings on tuner are much too conservative. Needs further experimentation. | ||
| ===== Files ===== | ===== Files ===== | ||
| {{ : | {{ : | ||
atsmini/index.txt · Last modified: 2026/07/13 19:05 by natalie