There are two methods in finding exact size of the belt. First the he trial and error and second the string technique.

Sure thanks for the comment

I have a video how to open a screwless Walkman. Check this link kzfaq.info/get/bejne/hq6JprCSkp-unJs.html👈

Yes but mostly it's only the belt if the item is sealed or brand new old stock.

Hello buddy check this link kzfaq.info/get/bejne/greZoqxeytPKmps.html

Sometimes if it is slow their must be a problem with the belt. Here's my guide about belt Thinner belt (Decrease Speed) Thicker Belt (Increase Speed). Or if the belt is too slack it can cause to decrease the speed.

Agree

You will know if it is mono when you plug your stereo headphone one channel has a sound. Or if you plug a stereo headphone two channels has a sound but no separation in sound.

@Woody's Hobbies its coming out mono but wasn't sure if it was suppose to be stereo?

Please check video I measure the belt in ruler and in caliper. Anyway buy 6cm x 1mm belt.

Check this link maybe it can help you kzfaq.info/get/bejne/hb57kst_3sWUhqc.html

Check the belt if your belt is new then check the idler gear/ rubber gear.

@@Woodys_Hobbies Thanks for the response! I removed the internals from the shell but it looks like the Sanyo MG16 doesn't expose the gears and belt, it's inside between the board and the tape receiver side. I don't see a way to separate them :(

@@juliovasquez2894 Yeah it's difficult but you can use cotton buds to clean the rubber gear. Use Isopropyl alcohol.

@@Woodys_Hobbies I'll try that thank you!

@@juliovasquez2894 welcome

Check the speaker and headphone jack. Check record switch or clean record switch. Record switch is located inside the circuit connected to record button.

@@Woodys_Hobbies Do you know how I would get into it? It’s pretty tricky.

@@DjCrispyFingers Yes its tricky. If you're not familiar then you can do is just press the record lock or place a cassette tape with a tab then press record and stop button. Do this at least 10 times and do not put a battery when doing this. After that place a battery and check if their is a sound. This method it helps clean the loss contact switch inside.

@@Woodys_Hobbies Sorry for the late reply, so I tried your method and I get the sound but only for a second then it cuts off.

@@DjCrispyFingers if you heard a sound then it means the record switch is the problem. Try to do it again and again until it sounds. Second is try to resolder the record switch.

If it has a power won't spin then check the belt.

Thanks! i fixed it.

@@teddyiichan Welcome

What is the issue? Not Spinning or No sound?

That's Good Luck!!!

Yes check the TAB of your cassette tape. Record button cannot be push if no cassette tape inside and the cassette tape must have a TAB. The tab is the square hole on each side of the cassette tape it must be sealed so you can press the record button.

@@Woodys_Hobbies thank you so much

@@Apollo_guy Welcome

SPECIFICATION: Power Source: x2 AA Size Battery DC: 3Volts Center Pin Negative Mic: 3.5mm Mono Headphone: 3.5mm Mono If you plug the unit in 5 volts then its already damage the IC that's why no sound.

@@Woodys_Hobbies can i still fix it as someone who doesn't have enough knowledge at electronics? 😭

@@minaslemonpose1144 I will ask you the time you only use a battery the unit is working with sound?

@@Woodys_Hobbies yes, it was working perfectly before. but after using the one i bought, no sound was coming from the walkman anymore but there is still power.

@@minaslemonpose1144 In this case it needs troubleshooting with an experience tech. In my experience this kind of issue is the audio IC or Transistor that drives the output stage going to the headset or speaker. Just a guide next time you buy an adapter make sure to use correct polarity and Voltage requirement of your unit.

Yes

In opening a cassette deck you only need to memorize the part you detach. The best way to do it is to take pictures of each part or connections you detached. About the screws there are many screws you need to check it because some screws are long others are short and screw threads are not the same.

Hello buddy I will give you a tip in turntables. First before you detach all the parts especially the tonearm make sure to take a measurement of the tonearm's "effective length". To get the effective length of the tonearm. Measure from the most center of the "spindle" going to the most center of the neck of the tonearm or the hole were we mount the tonearm. If you know the effective length of your tonearms salvaged from other turntables then you can mount that in any turntables. Effective Length of the tonearm is very important. About other parts it's very simple to assemble I know you know that too. Hope it helps.

@@Woodys_Hobbies thanks. The part im having trouble with is the tonearm wires I'm not sure if I am sodering them down correctly the sound keeps going out. Do u know a site where I can buy extra tonearm wires and the connector clips that go from the wires to cartridge? I'm not sure what they are called

@@Woodys_Hobbies also I wondering what are the most salvageable parts inside any random turntable and what could be tossed and or replaced w a better part

@@trapvisionjp3026 you can solder the connectors. Red positive for right channel green negative for right channel. White positive for left channel and blue negative for left channel.

Please check battery connection. Clean the battery spring connector.

By the way check and clean the switch it is located at the back of the cassette tape mechanism.

Thanks

Check the battery connector if it has a B+ out. Check the tiny switch it is connected to Play, Rewind and Forward button. If you press this buttons that switch will close. If this switch is open then your cassette player won't spin.

Well not all on tapes, Belts and electronic parts has its own wear and tear you need to replace and repair.

And the only thing turning is the metal post of the pulley wheel...

Check B+, Check the small switch located in the gear. When you push play button Rew. or FF button that switch will close.

@@Woodys_Hobbies First, thanks for replying! Not sure what you mean by the switch being located 'IN the gear'. I see a mechanical switch NEAR the gear/pulley that is being activated by the buttons. This switch actually goes from closed to open when activated. Is this the switch you are talking about? There is a big + label next to it. The motor and gear turn, but the speed never changes between Play, FF, REV and the direction doesn't change either! The speed control does work! The unit eats tapes like it's starving. 1) This is a Sony TCM-20DV. 2) I don't have the circuit board fully out because I'm not sure how to remove the cassette 'door', which I will research. (I have a technical background, so I'm confident to may progress with your help.) Thanks again!

@@Woodys_Hobbies OK, after my last reply, I discovered how to remove the PCB enough to find there is another belt below and it was off the pulley for the spindle! I got the belt back on and the unit pretty much works, except it won't fast forward (cue) very well while the play button is on and it won't reverse at all when the play button is on. Does this mean one of the belts is worn out and too loose? Thanks once again!

@@lonestarguy00 If the speed never change check the gearing.

There are many suspected parts when troubleshooting not just belts.

Thanks for your idea