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Yes, my mistake, I meant relays. I honestly do not know if they are DPDT or not....

Alright, so you are saying to replace all the opamps on all 8 of the cards?

Wow! Thanks for the responses. I have been having this issue for sometime now but I honestly haven't made time to work on it....I like the idea of the relays. I had been getting some electronic advice from someone else and he was recommending possibly the power supply?? That is exactly the...

Thank you Alfredo! My cables were plugged in incorrectly. Unfortunately my recording issue is still occurring.....It was working alright with the cables reversed, but now the slapback issue is back again, now occurring in NORM mode while recording.

I need to know the proper wiring for the channel card amplifiers on the Teac 80 8 deck. They were incorrectly plugged in after a calibration and sat for sometime. The current way they're plugged in is (from top to bottom, looking at card from outside of deck) RED, ORANGE, BROWN. I am having a...

I have noticed over the past few uses that my Teac pops really loudly when I stop, RW/FW. It pops loudly in my speakers and when I arm/disarm the tracks for recording. Anyone come across this issue before?

Good information! Thanks for the responses. I forgot to check the posting over the past few days. I'll be looking into the links posted> I know for sure I'll have some more questions I'll need answering.

I have somewhat of a simple question. When following a basic schematic when it shows an op amp, must that component be powered? Or can you use the signal from a preamp going into it as the power? I'm trying to build a simple mixer (above) with stereo outs. (2 mono ins with pan-pots) I'm...

That must be the large screw in the middle of the head. Yes, the scope on the monitor head was almost perfect but the norm head is off slightly. The deck got hit pretty hard a while ago and I feared their might be an azimuth error. Thankfully it wasn't a big error. When I popped on an older...

Nope, page 10 of my manual has a diagram noting the azimuth screw adj. Their is a large screw adj. in between the record and monitor heads but I did not touch them. I only tried adjusting one screw on the monitor head to see if an adjustment would be made. Nothing happened.

Just had a quick question: I went to adjust my azimuth on my deck. I followed the manual directions adjusting the two small screws behind the head, BUT nothing changed, the head didn't move up or down and my oscilloscope didn't change. Has the head sat so long that it will not move? Or am I...

Fair enough for me.

The only issue is, those instructions don't match my B2-HD model. I don't have as many adjustment pots. The only adjustments that I have, which I adjusted with the MRL were VR 102 and VR 202 15 & 7.5 REP EQ. That's what my model has. SW 101 and 201 are the source/tape switches on my deck. I...

LF Compensation Adjustment.

Ok, so hopefully to put this thread to rest soon here, apparently I had not been checking my output level from my oscillator to my tape deck, which was why I could not get the hi freq up to 4dbm. So after thoroughly checking everything, I can say that everything has matched to the +4dbm called...

Checking the actual output, using my multimeter. I have my multi., scope, oscillator all set up so I can switch between them. Unless it's an azimuth error, I would have to guess that their is a loss of high frequency on the heads, as earlier stated, due to age....

But I'm curious again. When playing back the MRL tape at 10khz, channel 1 will go to -1.3db VM and channel 2 will go to 4dbVM, while in SEL. REP mode channel 1 will go into -3dbVM and channel 2 will only go to -6dbVM. Does this signify an azimuth error? I am getting a straight 45 degree line...

Alright, so having checked the forum a week ago we re-soldered and I spent the day working on the tape deck. It seems to have fixed the issue. The phase is working correctly. I couldn't tell you why we assumed the outputs didn't need to be re-wired, but we switched pin 3 to pin 2 and 2 to 3.

I will have to check that out...We re-soldered the XLR inputs but not the outs. You are probably right miroslav it is something that I most likely either partially or fully messed up myself. Once I understood the process better, their seemed to be more issues I found. I live in Michigan, about...

I know what I'm trying to achieve. My point was that I haven't been able to get the line close to being "in-phase". Every time I get close to a 45 degree line, the azimuth line jumps to the 2nd photo I posted (around 180 degrees out of phase). The adjustment screws literally didn't let me go to...