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I've just back into tape stuff with the recent Tascam Midistudio 688 purchase and the Tascam 238 which is coming later this month. The 688 needed quite a bit of fixing (and still needs a bit more) but I need to gain some more knowledge in managing to do this. I came across this YouTube channel...

Great find....you'll have to upload some pics...I remember seeing a Tascam ATR80, a 24 track machine...looked lovely. Would a Tascam Midiizer be able to do the job I wonder? It would be much easier just to stripe TR16 with any FSK or SMPTE code and sync Cubase to the ATR60 for midi...

Love it....

Yes, the 238 is the DBX version and was described by the very good professional seller as: 'Tascam 238 8-track Cassette Recorder, has hardly ever been used and is like new. PCB Capstan Motor Replacement has been replaced by a technical Dutch company. Incl original pakking.' The setting of the...

Hey Sweets, I guess I'm just an inquisitive type....I like to understand things. I realise that I've probably jumped in the deep end with the most complicated cassette portastudio that was ever built, but you learn a ton of stuff from doing it. I'd like to get the unit to a point where it can...

Nice....

Had a chance to use the unit today and found it was 'behaving' and some of the problems I had seemed to disappear as I used it....very strange as I have re-capped the power supply PCB and checked the new voltages and apart from the negative rail measuring -11.94V (which I thought was...

Oh.....and I found out that the 'plate' mentioned earlier is an 'rf shield' and is only conductive on one side (the side I checked)...thanks to a YouTube viewer.

Well the unit is back together now. I think I've taken this as far as my limited knowledge will take me. When I got this unit, the cassette didn't work, only track arm buttons 1-3 worked, only routing select buttons 1,4,5 and 8 worked. The transport locators didn't work and other stuff. I now...

I feel like I may be getting somewhere. I don't know what the 'plate' does (maybe rf shielding?'), but I have the all the input cards removed except Input 1, and all the monitor cards attached to the buss PCB, and the cracking noise I was getting when I assembled it the last time has now...

Anybody give me a hand with this next problem? What is the aluminium sheet on this PCB for? In the manual it is called a 'sealed plate'.....but wouldn't it short out the contacts on the back of the PCB? Confused.

So I changed the caps on the power board but I'm still having some issues with things (and they seem to vary which doesn't help). I have a better understanding now of the boards on the machine and what function they serve. I think the only way to solve these now will be to dismantle the top...

WOW....both units look absolutely gorgeous. What a talented bunch reside here.

I measured the voltages on the new 4066 chips and they're quite different from what I initially had at the top of this thread, so something has happened. I'm still getting a pin with -11.14V so I managed to get the power supply board out. There are three large 4700UF 25V caps and these seem slow...

So bit the bullet and did all four 4066 on each board of the P/B PCBs. I think now the switching is working fine, but I have terrible hiss on the 'MONITOR' buss when 'MONITOR CUE' is selected. The chief culprit is TK7 cue volume pot, when nothing is selected above the SHUTTLE control. If...

I replaced the four 4066 on the Monitor PCB. It solved the 'cracking' when the routing operated on TR3 & TR4.......but it's now thrown up a new problem (or it may have been there all the time, but I hadn't discovered it yet). Basically, switching between input monitor modes (called MIX and...

Sorry, misread your post.....you have both desks at the moment, right?

Have you thought of a Soundcraft Spirit 24? I have the AUTO version and it's pretty good for what it is. I just tried the new Tascam Model 24 (analogue mixer with SD recording). If I didn't have anything else, I may have kept it, but my computer setup is a Be Quiet PC (really excellent) with a...

Just waiting for the 4066 chips to come in. The new battery holder is here. When I finally got the monitor PCB free, I still had to remove the Buss PCB from all the cards so I might have been able to achieve all this with the mixer panel still attached to the baseplate. As it is, I've found...

Ignore all that......I'm glad I took my time. You can remove the whole mixer panel by removing the plastic lugs at the back. I put the steel cover back on the P/B PCB beforehand. You still have to unplug quite a few molex and also remove the midi sync board and to get to that you have to remove...