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Ok, I finally got the cards out--they really took some muscle. I swapped the CH. 6/8 card and the CH. 5/7 card. After doing this, I first expected to find the problem in channel 5, but I found no audible problem. I checked 6 through 8, leaving each channel on for a while but heard no...

OK, after looking in the service manual, I'm pretty sure that I know the rec/play card is one of two on the right side, but I don't know how to pull it. Just force it? there's no way to really get a good grip on it. THANKS.

OK, I think I'm understanding. I'll say this, I think I heard some quieter pops on channel 6 when in Line mode, but it didn't persist or come back, so I can't say for sure. I'll swap the cards BUT...I'm not really sure how to do this. These are the cards directly behind the channel VU's, yes...

Sweetbeats, I ran the test. Now, this being an intermittent problem, I'm hesitant to say I found the only source, but I can say I found one problem. All channels were fairly consistent running your test--the mic mode was noisier, the line and RMX were quieter (this was with m monitor cranked...

Sweetbeats, I may need you're guidance in isolating the problem. So, working backwards from the record amp, would I first test signal sent to the PGM INs? These go to the pgm faders, then to the recorder, yes? Is there a more direct path to the recorder?

I'll try that---could be the problem, though I'd imagine that the sound would be just one pop, but this wil be a few little pops and a fizz (best I can describe it). I rent an old farmhouse, and while the wiring is up to date, I wouldn't be surprised if the house's electrical played into it.

i'm using RMGI lpr35

They don't seem to be the result of switching. I think they might be present at all time. I get the impression that they're just inconsequential pops, except if they happen while recording, the get printed.

I recently opened up my tascam 388 and reseated a bunch of the cards. I highly recommend this to 388 owners experiencing hard-to-solve problems with the machine. That said, I think that there's still some occasional pops and crackles when the DBX is on (perhaps when it's off too, though i...

ok, I ran recorded material out of the TAPE OUTS and into a mixer for a while, so I think i can safely say that the TAPE OUTS worked--all channels came through clearly with no problems. So, if I understand the signal path of the board, signal comes off the tape playback head and goes to the...

further development I ran some recorded material out of the PGM OUTS and into a seperate mixer to listen to the mix and see if that worked. Intermittent problems are a pain in the ass! seemed great, but then various tracks would crackle and fade out, even tracks on odd (left panned) channels...

one year later That's right, i've been limping the 388 along for a YEAR, but i'm ready (forced to) revisit this problem in search of a solution. -I have run the tape outs to other channel line ins--this works great -Tape outs to stereo bus mix in--works great -PGM bus IN and OUT seem to...

That's right, normal sound, no crackling. It's hard to diagnose this problem with it going in and out.

the stereo bus in worked just fine. and there was no difference between pgm and cue.

oh, i see the logic in trying the tape out. cool. so the repro head is working fine, does that narrow it down much? Can I assume that the capacitor (or whatever the problem is) is in a particular part of the mixer near the stereo bus out? any suggestions on locating bad capacitors? thanks.

well, all above mentioned jacks seem to be working fine. Any other ideas? I guess it's pretty hard to get to the bottom of an intermittent problem like this. Thanks a lot for helping.

I haven't tried the unbalanced stereo outs, but all the others lack the R track when intermittent. Actually, to be more specific: When lacking the R track, it's still actually there, just extremely quiet and crackly (you can only hear it when you pan to the right). But, as mentioned before...

Hi there Sweetbeats. I've followed your 388 overhaul, and it seems like you're the person to ask about my little problem. It's in a new post-- "new 388 problem." If you even had just an idea of where I should start it would be much appreciated. Thanks, Will.

I've followed the 388 enthusiasts on here for a while (bought a 388 years ago not knowing what it was). Usually you 388 fans answer questions without me having to ask, but now i've got a specific one: When i turn on the 388 (which has worked great for a long time), about half the time the...