Fighting Back SHARP GF-9696 Boombox Restoration
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- Опубліковано 19 сер 2024
- The restoration of GF-9696 round 2. I spent many days just thinking about how to fix the unstopping motor issue. While I was working with another boombox project, I had a sudden insight. "Maybe I can add an additional switch to control the unstopping motor".
Once I restarted the restoration, one after another the new issue came up to block my way. For the cassette deck restoration, I needed to fix the following problems one by one.
1) Unstopping motor issue
2) Not spinning take-up reel issue
3) The motor spinning in opposite way issue
4) Way too fast and unstable motor speed issue
The unstopping motor issue was resolved by adding an additional leaf switch to control the power to the motor. Not spinning take-up reel issue was caused by the worn out drive tire. The tire size was IT-17 and there was no place to purchase it. So I needed to create a new way to fix it. What I did was using 2 tiny round drive belts on the pulley, then place the o-ring on top of them. Also thin tube bought from the auto-shop on the capstan rod. With these substitute parts combination, the take-up reel started spin again. The motor spinning in opposite way issue was caused from my previous work. I replaced inside broken blushes from another used motor. This replaced blushes weren't exact the same type. The current on the blushes was opposite way setting. So I needed to set the positive and negative wires exchange. When I tested the tape speed, I found that the motor speed was way too fast.I reduce the voltage to the motor by adding a step-down module, however it wasn't a perfect solution. In this way when the volume goes up, motor speed reduced accordingly. The main problem was the circuit board inside of the motor. The damaged capacitor on the motor circuit board could not hold the voltage to stabilize its speed. So I replaced damaged circuit board from another motor. At this point I did not need a step-down module, so I removed it.
Then my next challenge was adding the Bluetooth system on this machine. The GF-9696 does not have the AUX input, and very difficult to locate the radio signal input, or power line to the tuner. So I tested with PHONO input as well as MIC input for the Bluetooth jump in, however (and I knew it wouldn't work for this mod) it failed. The only way to put the Bluetooth signal was from the volume control. In this way, the LED meter lighting will not work. Even though I used volume control as the Bluetooth input, still it shows heavy distortion due to the strong amp on this machine. This SHARP boombox requires super sensitive tuning up in order to get the nice Bluetooth sound. I added an additional volume controller inside to reduce the Bluetooth signal. With a delicate output volume tuning up, this GF-9696 will play the great sound through the Bluetooth as you can see in this video. However, I do not install Bluetooth into the SHARP again. It is the best to keep it as original as possible.
Anyway, this time I won the fight. Thank you for the encouragement. It helped me a lot.
By the way, maybe someone wants to know how much does it cost for the restoration like this. Well, I spent more than 60 hours from the beginning (ep-01 Defeat in the restoration) to the end. And my research time, going out to find the substitute parts at various shops, waking up midnight from a haunted GF-9696 nightmare in my dream, all adding up to over 100 hours. So if I charge $10/per hour that will make my fees $1,000.00. But I did not charge such a gigantic fees. (LOL) But in case if I need to do the same type of crazy work with super filthy and completely broken boombox restoration again, I will charge $1,000.00 for sure.
Enjoy!!
Demonstration tape (Hitachi original)
1) Racing sound dynamics
2) Battle of Jerico
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Credit: The owner of this boombox is Pedro the greatest boombox collector!
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If you have a question regarding the boombox restoration work and fees, contact me at teddy.hashee@gmail.com
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Donation welcome!
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You make this work look far easier than it truly is. You're an electronics guru when it comes to vintage radios and boomboxes. Always a pleasure to watch you work and your trials along the way.
Thank you for your compliment on my work!
Had a GF 9595 as a kid and keep hoping to run across one again. None here in Aus so far but hoping... Love old boomboxes.
Satisfying to know these machines are all given a new lease on life. This is the tech that defined the 80's and a big part of what made that era the most awesome time to grow up in.
Thank you for your comment. As you said back in 80's they really made a great music gear. I see them in this 21 century and still they are amazing creature!
Well, Mr. Pedro should give you an entire bank for the time and energy you put behind repairing this retro boombox... LOL!
Great video, and I'm so grateful to see that you didn't give up!!!
Hi, James I finally was able to finish the restoration. Thank you for the encouragement, that helped me a lot!
You deserved to win. Beautiful peace of technology. I can´t even imagine the number of hours that was put into this. Once again, thanks for the video. Peter, Denmark. :-)
Hi, Peter. Thank you for your compliment on my work!
最初に壊れていた駆動モーターは私の地元のメーカーの製品です。
私の少年時代もラジカセ世代で裏蓋開けてはいじってました。非常に興味深い画像で楽しいですね。
コメントありがとうございます。なるほど、地元のメーカーさんが作っていたモーターなんですね。何十年も前に作られた製品が今もこうやって稼動していることにいつも驚くとともに、技術の高さに感銘しています！
A true Master, the Master of all Masters! Whis you'd live close to me I have a long list of radio's that need attention, no corner shop will put that much time and effort that's to say the one's that are still around, and they still want your money on top off that. Great work appreciate your vids vey much.
Thank you for your compliment on my work! Because of viewer like you helped me a lot!
VIKING5464 NAH HE IS GOOD BUT HE AIN'T NO MASTER I CAN DO BETTER AND MANY OTHER WAY BETTER THAN ME!
1 8
いろいろを勉強する上進心と謙遜心は、基本的に大人になってからどんどん減っているけど、こんな映像を見ると、まだ子供っぽい。
そうそう、私はとっても子どもっぽいです。当たり！
Awesome job teddy on the restoration comeback and once again I applaud your masterful skill set on display with the modification.
Thank you Larry for your compliment on my work!
Well done man...Appreciate your don't give up attitude!!! Expecting more from you hereafter.
Thank you for your compliment on my work!
Hi Teddy, Great work going on in your restorations. I resolved this capstan sleeve issue on an Aiwa AD6300 by using food grade silicon tubing that I found on eBay. I couldn't get anything else that did not produce high amounts of flutter when I did wow and flutter tests.
I think the sight/smell of the roaches alone would have put me off restoring something like this but you persevered - cleaned it up and got it all working.
The extra leaf-switch was a neat idea.
Fantastic job, Teddy. Another piece of vintage technology saved from potential landfill. :)
It was a really tough job, but I am glad I was able to finish it. Thank you for your comment!
The additional LED's on the speakers made it even cooler.
bravo mestere esti. un adevarat maestru
Thank you for your compliment!
The flywheel should be removed with the white plastic pulley still attached to avoid damage - it slides right off the shaft when the flywheel is withdrawn.
The tubing should have a 5mm OD and importantly, a 2mm ID (not 3mm as it will slip).
The ‘worn out tyre’ you removed very rarely needs to be replaced - it’ll need a clean up, yes but not replaced.
I’ve serviced around 25 of these decks and I’d have to say they’re super easy to work on and rarely give any issues after a proper service.🙂
This time it was a success..great job,i knew u get it back to work..you sure are a master.love ur work.
Thank you for your compliment on my work!
Teddy Hashee ..any time, you are a boss..
TEDDY IS TOP!
DISCO LIGHTS, THIS GUY ROCKS THE HOUSE!
LITERALLY LOL!
Thank you for your compliments on my worK!
From bio-hazard boombox (from the roaches) to complete restoration! It's amazing!
Thank you for your compliment on my work!
Teddy Hashee your welcome Teddy
Impressive commitment and patience.
You’ll still lose sleep over why that motor kept running.
It wasn’t a pure victory.
Heheh. :)
Thank you for the comment. As you said it wasn't a pure victory, but I am satisfied.
@@teddyhashee Me too. You did a good job.
Отличная работа, браво. I love Sharp.
Thank you for your compliment!
Why don't you have more followers??? This is what the internet is all about
Some day I may have more subs. Thanks for the comment.
That music being played on the cassette reminds me of "Speed Racer"😊. As always, great video, please keep the coming👍.
Thank you for your compliment on my work! I saw original Speed Racer in Japan when I was a kid!
Good job man! You save a classic from when I was a kid, cool to see it live on.....good stuff just subscribed after seeing this restoration...
Hi, Sunny. Thank you for the subscription. I will upload more videos so come back and check sometime!
@@teddyhashee For sure, Thanks!
Just gargae pick an ols solid state all in one Curtis Mathis, going to see if its savable or strip it down and take the cool analog gauges out....
Hi, Mr. Teddy, how are you? This device really worked hard, but the important thing is to insist and achieve. Congratulations, it was excellent. A big hug
Thank you for your compliment on my work!
this kinda work will make you go crazy.
Haha, you are absolutely right!
Buen trabajo!! Y que paciencia!!! Saludos desde Argentina👈!
Thank you for your compliment on my work!
First I wanna say I wish I had your patience, secondly damn u have a mess there! Great work!
Thank you for your compliment.
maestro no te das por vencido felicidades quedo como salida de fabrica
Thank you for your compliment on my work! I finally was able to finish it with success.
Incrível seu trabalho amigo. Um abraço aqui do Brazil. Também sou técnico em eletrônica!
Thank you for your compliments on my work!
oh,my -you are very good &you have a patience,really.
Thank you for your compliment on my work!
This is Beautiful
Thank you!
SUPER!!! Thanks!!!
Wow. I love this channel
Thank you for your compliment!
i also..
Nice! The LED's look great.
Thank you! Red color led is just match for this machine!
Wow, I would have sadly given up, and added it to my growing pile of “ I’ll get around to it” , devices, the engine on the end sounds rather interesting also, 787b perhaps? Anyway, thanks for sharing 👍👍😎😎
Hi,Mike. Thank you for the compliment. Hope your growing pile of items soon to be restored!! Thank you again!
I find your determination and ingenuity impressive and inspiring. But I do think you fight a tough battle though, seeing what $1000 can buy in current audio equipment.
Hi, Albert. Thank you for your compliment on my work! It was a toughest work I have ever than, but I learned a lot from this experience.
SUPER JOB
Thank you for your compliment on my work.
Thank you for clip
You are welcome!
Once again...an Outstanding job! Aloha.
Than you David for your compliment.
Teddy the Boombox Whisperer!!!
I am flattered. Thank you!
Wow im very impressed! Good job :)
Thank you for your compliments on my work!
you sir are AWESOME!!!!
Thank you!
wonderful work !!
Thank you for your compliment!
It's a sample of lot Knowledge..plus ..lot Patience...LOL.
THAT WAS REAL COOL STUFF LIKE THE VIDO COOOL
Thank you for your compliment on my work!
Da,,ghetto blaster doctor
Peace n kindness down under Sydney australia
😁😁😁😁😁😁😁😁😁😁
🍺🍺🍺🍺🍺🍺🍺🍺🍺🍺👍👍👍👍👍👍👍👍👍👍
Lindo trabalho, Parabéns!!!!
Thank you for your compliment on my work!
I've got similar tape recorder and the motor is always spinning because of the inertia of heavy flywheel, if it starts spinning when you hit play you will hear the nasty slow take off. Tacking back the mod will be a wise ideea.
Thank you for the advise!
Great job.
Thank you for your compliment.
nice work!
Thank you for your compliment on my work!
really amazing work :) wish u the best
Thank you for your compliment!
КЛАСС!КРУТО! Я ФАНАТ SHARP ищуGF777 купил бы но у нас дорого стоит.Ты мастер своего дела как говорится СЕНСЕЙ.
Thank you for your compliment on my work! So you know the Japanese word "Sensei" that means teacher.
Sounds like there may be a speed sensing circuit that is down a capacitor or five. Probably a hall effect type thing.
Thank you for the advise!
Hey teddy you rose from the canvas and scored a knockout with this beautiful sharp. Great video. Question how would this model size up against the JVC M70. Great restoration
HI, Fransisco. Thank you for the compliment on my work. The size is almost same, but GF's weight is heavier than M70, I believe.
Yo tengo ese. Modelo y me gusta .......exelente
Thank you for the comment!
Congrates
Thank you.
Hi Teddy....i am a new fan of yours and i must say you are really a master technician....Maybe i can use you for my Realistic SRC-8 model 14-778A.......i might need you to check it out for me ....Where do you live??
I am at NJ USA. You have a great looking boombox!!
Yo. Tengo una igual. Y funciona ok. Efectiva.......
Good for you! Thank you for the comment.
Hello! My name is Alexander. I'm from Russia. In the frame at 38 minutes 44 seconds, You use polish to remove scratches. Please tell her name in english and a link to the online store (if any).
Thank you for the video!
That one is called metal polish made in Japan.
The company name is Soft99
www.soft99.co.jp/en/products/detail/20504/
@@teddyhashee Thanks! And what kind of polish do you use for plexiglass? I want to find an analogue on the Aliexpress website.
А теперь можно отнести его на помойку, откуда Вы его принесли. Жестоко, но по существу.
Thanks for the comment.
Hi Teddy. Awesome video. Just wondering, in the video at 31:15 what polish you are using to polish the radio and LED VU meter window with, please? I often use petroleum jelly to polish it but it doesn't make it shiny. Alex
Nice Good job i was one like this and i fix all the time. I. Stil have love the sounds?
Hi Carlos. Thank you for your compliment on my work!
Very Nice.. Sir.
Thank you for your compliment on my work!
the GF-9696 has a "Tempo" fader on it.
Thank you for the great info!
Hi, wasn't telling you, was just wondering if that affected the Hz? Diff Sub i DLed the tuner you used and got the pro version and my guitar has never been in better tune! Thank You. @@teddyhashee i have a Sharp GF-9696 w/o the grills, i did a painting of it, www.flickr.com/photos/thedjthat/5018471603/in/album-72157624896129973/
You are quite the artist!
GOOD JOB
Thank you for your compliment on my work!
Love your vids as always. So glad you didn’t give up on this one. One question, why do you paint the speakers? Does that effect the sound?
Hi, Max. Thank you for your compliment on my work. What I did to the speakers was not painting, but dye with Japanese calligraphy ink. It won't affect the sound quality.
Teddy Hashee awesome, yeah it really makes them look brand new!
I have the same boom box and it needs repair. Are you located in NYC? How can I contact you?
I'm in NJ 07605. 5 to 7 minutes after crossing GWB email me at teddy.hashee@gmail.com more detail info.
good remember...........
Thank you for the comment!
Teddy I thought the Sharp GF-9696 was 58 watts ? Is it louder than the JVC m-70 which is 40 watts ?
From the radio museum, it stated 40W
www.radiomuseum.org/r/sharp_gf_9696z.html
Nice videos!
I need something fixed.. Can I send over my girlfriends brain? Doesn't seem to be working.
LOL I recommend DIY for the brain! Thank you for the comment!
Hi teddy, I have a Sharp GF-9696 that has some details. Do you want to know if you are interested in buying it? I can post it on EBAY at a price we agree on. Sorry to add this comment here. Thank you
Hector, I sent an email to you.
you are Best electronic engineer.in the world.....which is your Facebook id..
Thank you for your compliment on my work. I do not use facebook, but I just started instagram. instagram.com/teddyhashee/
いい心！！！
ありがとうございます。
Hello. I love you channel. You inspire to restore by myself. I'm working in a sony cassette deck td-199sd. I've been working more than 1 week. Its alive but, the frecuency of sound fluctuates 200hz. What can be the reason? Thanks
Hi, are you talking about the tape speed? If it is around 200 hz, it is very slow. So far what did you do to restore your sony?
23:51 what spray are you use for the potentiometers?
amzn.to/30jqxwz
Contact cleaner
Attmp 3 what?! Through the antenna?
Thank you for the comment.
Hello Teddy,
What rubber parts u used on 7:14 and 7:16 always is very hard to find idler tyres. Thanks
The first one is O-RING, you can find them on ebay, amazon, your local hardware store. Second one is from AUTO-SHOP. They have many type and size of the rubber tube that are parts for the car repair. Thank you for asking!
How did u fix the motor speed issue???
The motor speed controller wasn't fixed. But I adjusted motor speed with variable resistor circuit inside of the motor.
fuckkkkkkkkkkkkkk this is hard
Thank you for the comment!
The part you're having a hard time finding their's a solution. Ever heard of 3D printing.
Most of the 3D printing does not have a good surface condition as well as strength for the parts use.