- Joined
- Jan 5, 2022
- Messages
- 14
- Karma
- 1
- Gear owned
- Tascam 38, 32
I recently had some issues with various channels on my 38. After sorting out most of the issues via card swaps, etc I blew a fuse to the PSU, specifically Fuses F503 and F504. After replacing diodes D814 and D815, the fuses stopped blowing.
Everything seemed to be functional, but upon testing repro I noticed no erasing or recording on channel3 . Input and Sync both work on the channel. It's almost as though the function switch isn't arming properly, although it's LED does light up correctly.
I'm having a difficult time tracing this to components that could be an issue. I've also read other posts about similar issues that point to the oscillator or PSU (may something else got damaged besides the diodes, but I was unable to identify any additional damage). I've reflowed all the solder on channel 3 and cleaned the boards with alcohol. I also reseated the pins that plug in above the erase head. I also tested flipping the tape and playing it backwards, confirming no recording/erasing on channel 3 (channel 6 playback when tape reversed)
(The issue doesn't move with swapped cards, and the card installed works fine in other channels.)
Everything seemed to be functional, but upon testing repro I noticed no erasing or recording on channel3 . Input and Sync both work on the channel. It's almost as though the function switch isn't arming properly, although it's LED does light up correctly.
I'm having a difficult time tracing this to components that could be an issue. I've also read other posts about similar issues that point to the oscillator or PSU (may something else got damaged besides the diodes, but I was unable to identify any additional damage). I've reflowed all the solder on channel 3 and cleaned the boards with alcohol. I also reseated the pins that plug in above the erase head. I also tested flipping the tape and playing it backwards, confirming no recording/erasing on channel 3 (channel 6 playback when tape reversed)
(The issue doesn't move with swapped cards, and the card installed works fine in other channels.)