Repairing mid-'80's Aiwa HS-J09, 9, 600, 10, 36, 360

I think the HS-G08 uses a different mechanism for transport and reversing but that may be an area to look at with the HS-J08 which is the more severe of the two units with this "pulsing" problem.

 

I suspect the same, although don't know how I could make a list unless I go through each service manual individually (some of which are not even available).
If you have any hints of how we could make such a list it would be welcomed.

As far as the G08 goes, logic control mechanisms would expect to have a different code even if they're based on the manual one.

 

My Aiwa HS-J10 has soft touch buttons for forward and reverse, and it has the 2ME-7 mechanism. This makes some sense because the models with mechanical controls, like the J9/09/600 use electrical switches as part of the tape direction switching. Probably they control motor rotation direction and head track switching.

From what I understand of the mechanism, reversing the motor results in the gear assembly A clutch function moving other levers.

So to complicate the matter there are models with a mix. I don't know how to curate accurate mechanism lists, unless Aiwa had such data somewhere.

 

These players keep coming up with faults that I haven't run into before. So I've added a couple to the opening posts.

22. No AM Reception
23. Takeup and Rewind Reel Dislodged

 

Did you resolve the "pulsing" problem? I've found reinstalling the J09 etc. reel caps can cause mechanism gears to be misaligned. But it's more of a ratcheting sound than pulsing.

 

Did you resolve the "pulsing" problem? I've found reinstalling the J09 etc. reel caps can cause mechanism gears to be misaligned. But it's more of a ratcheting sound than pulsing.[/QUOTE]
I've had that ratcheting sound as well but provided I stop any movement from the transport quickly it resolved and then normal Play/FF/REW resumes. My latest attempt to free things up before inserting the cassette and using the little green door activation micro switch to establish it is going to work is spray a minute amount of silicone lubricant on the moving parts that position the tape head assembly in fully extended mode. Initially this did nothing but seems now to have had the desired result. Working well on a G08 at present.