Cassette player will not play. need a belt for the player.

If your Realistic VR632HF cassette player is loading tapes but none of the functions like play or rewind are working, it may be a mechanical or electrical issue. Here are a few troubleshooting steps you can try: Check the belts: The drive belts that operate the cassette mechanism can become worn or stretched over time. Open the cassette player and check the belts for signs of wear or damage. If they are loose or damaged, replace them. Clean the heads: Over time, the tape heads can become dirty or magnetized, which can affect the sound quality or cause the cassette to not play at all. Use a cotton swab and some rubbing alcohol to gently clean the tape heads. Check the electrical connections: Make sure all of the connections inside the cassette player are clean and secure. Over time, dust and debris can accumulate in the connectors, causing poor performance or even complete failure. Check the motor: If the cassette player is not rewinding or fast-forwarding, it may be a problem with the motor. Check to see if the motor is running when you attempt to rewind or fast-forward a cassette. If it is not, it may need to be replaced. If these troubleshooting steps do not solve the issue, it may be a more complex problem that requires professional repair.

It is problem in Take-up Reel section and its not sending signal to processor. How old is this unit?

You may have an issue with the cassette deck on your Sony LBT-D550. The cassette deck uses a belt drive system to operate the cassette mechanism; if belts are broken, it can cause the deck to malfunction.
All the belts may have failed at the same time, but it's also possible that there is another issue causing the problem. Some possible causes of a cassette deck malfunction include:

• A problem with the cassette mechanism itself, such as a jammed cassette or worn-out gears.
• A problem with the cassette deck's motor, which a malfunctioning capacitor or other components could cause.
• A problem with the cassette deck's control board, which a malfunctioning switch or other components could cause.

To determine the cause of the problem, a professional technician should look at the cassette deck.

Yes, they ALL operate with drive belts, which can break, or become stretched. Check that the spool holders move freely, before going into the mechanism.

SOUNDS LIKE YOU NEED A NEW DRIVE BELT YOUR CASSETTE IS NOT SPINNING.

Belt aging, need to be replaced.

Hi.
If you hear a faint whirring sound from the cassette player while performing these functions, the motor is fine, but you require a new drive belt/s that need to be fitted at an electronics shop. If you hear not sound at all, the motor has died (possibly belts too), again it will require and electrinics repair shop visit.
For the sake of repairing it, it maybe cheaper to buy a new one.

Fault with the drive belts, remove rear covers and take sample belt to buy and replace. Might be difficult to get them but in old stocks.

Most likely all that you need is to replace the belts set.

This sounds like a dirty or sticky pinch roller - use a commercial cassette head cleaner - or ear but with a alcohol cleaner -

If the capston is not rolling the cassette forward this my be due to a broken belt - or may have just jumped off - power down the product and disconnet from the mains - then open it up - normaly the front come away undo the mounting screws from around the cassette mechanism normaly around 4 and carefuly look at the back there should normaly be 2 rubber band one to the capston and 1 to the pich roller the belt that may be broken is the smaller of the too. most cassette deck use the same size belt