Hi I have a technics rs-hd81 tape deck the left direction runs slow or fast the right hand side plays normal any idea thank you.

Red for Right channel (play). White for Left Channel (play). Yellow for right (Record) Black left (record). The leads should run from tape (out) play to amp in play. Same for the left channel.
Record from tape (in) to Amp (out).

Hi Steve - try this:
Connect amp Tape Playback to deck Line Out.
Connect amp Tape Rec Out to deck Line In.
Play your favourite cassettes.

Soft Touch control for cassette decks are servo drive and uses no belts.

Place the tape you want to record into the left deck, Then the blank tape into the right deck. Press play on the left deck and record on the right deck.

It may be opposite depending on which side your recording deck is on.

Which ever deck has record, place blank cassette into that one and the cassette you want to copy into the other deck.

Hope this helps and please rate thanks

More than likely the pre-amp IC has failed! Trace the wires from the VU meters back they should locate the source of the problem. Remember it will be something common to both channels!

A lot of tape chewing problems are caused by the capstan roller being worn. Check for wear or oxide on that first.

Place the speed on X1 mode to make sure it is off the B mode and it should record.

Each unit (the EQ and the Processor) should have left/right in/out rca jacks as well as L/R tape in/outs. The EQ or processor use the receiver's tape loop and then provide a tape loop to replace the one they've used on the receiver.

You plug the first unit (let's say the Sound Processor into your receiver/amp as if it were a tape deck (Processor's outs connect to reciever's tape ins (play) while the Processor's ins connect to the receiver's tape outs (record).

Then you chain the EQ off the Processor in the same way (EQ outs connect to Processor's tape ins (play) and EQ ins connect to the Processor's tape outs (record).

Last you connect the tape deck to the EQ as follows. Tape deck outs connect to EQ's tape ins (play) and the tape deck ins connect to the EQ's outs (record).

This will put both the Sound Processor and the EQ in the receiver's tape loop. In order to have all the receiver's source signals routed through them you may have to engage a Tape Monitor switch or button somwhere on your amp which will route the tape loop to your speakers.

a system remote is the only option for you here. The deck does not have its own remote receiver. Sorry to break the bad news to you.

Oh yes, on the TD-WE375 above the left deck also stops playing sound when the right deck is readied for recording.