The cassette deck looks about like new. I have the paperwork for it. It works but the sound is all muffled like the heads might be bad.
John
Maybe try cleaning and possibly demagnetizing the heads!!
This site had good info on cleaning tape heads;
Cleaning Tape Heads
CLEANING STATIONARY TAPE HEADS
Extend the life span of cassette decks and reel-to-reel machines: Clean and demagnetize the tape heads regularly. As the tape passes over the heads, little pieces come off of the tape and are left on the head itself. The junk that gets on the tape head makes it more rough, which grabs even more junk. Since these flecks are designed to hold a magnetic charge, they can add a little charge to the tape head, interfering with recording or playback.
The general rule in a studio is to clean the heads before each session's use and to demagnetize them once a month. Any installation with a regular technician should try to stick to that. However, for typical contractor installs, a bi-monthly cleaning and a 6-month demagnetizing will make a dramatic difference. This practice can be added to normal visits with the client, and it can put you back in touch with clients you haven't seen in a while.
When cleaning tape heads, the most common mistake is using rubbing alcohol. Rubbing alcohol usually contains negatively charged ions, which transfer a negative charge to the tape head. Instead, use tape-head cleaner. It breaks up the junk on the head without leaving a charge. It also evaporates fast without leaving calcium deposits on the head, enabling the machine to be used right away.
When demagnetizing a tape head, turn the demagnetizer on at least 6 feet from the machine, and move in slowly. Put the tip of the demagnetizer just over the tape head. Once the tip gets within about a half-inch or quarter-inch from the head, the demagnetizer will pull hard toward the tape head. Don't let the demagnetizer touch the head! Rather, slowly wave it around over the head. Then slowly move away and turn the demagnetizer off at least 6 feet from the machine.
Cleaning and demagnetizing should take about five minutes. A regular schedule will keep the machine sounding noticeably closer to the factory specs over time.