My First boombox project is a GF-9000

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Obuffalo

Obuffalo

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Hi all about to embark on my first resto. It needs a few bits first, apparently the transformer is gone, needs a battery cover, a couple buttons and some tlc and it'll be fine (I hope). I'm gonna replace some wiring to neaten up inside but any other advice will be greatfully received.IMG_20200114_171901.jpgIMG_20200114_183520.jpgIMG_20200114_183750.jpgIMG_20200114_191952.jpg
 
Timecop1987

Timecop1987

Member (SA)
great first project! I also enjoyed workin on my GF-9000 - i changed the speakers for a pair of Lasonic TRC-931 woofers. Pretty easy to work on for the start.


As for the missing parts such as battery-cover and sliders - you could ask member nikonfoo..best source for parts :-D :yes:
 
Obuffalo

Obuffalo

Member (SA)
Timecop1987 said:
great first project! I also enjoyed workin on my GF-9000 - i changed the speakers for a pair of Lasonic TRC-931 woofers. Pretty easy to work on for the start.


As for the missing parts such as battery-cover and sliders - you could ask member nikonfoo..best source for parts :-D :yes:
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Cheers for that, are they much better speakers?

Northerner said:
Nice I like the 9000. I spent a ridiculous number of hours rebuilding one that got smashed. By the way a GF575 transformer works but you have to adjust the casing internally to fit it. 575’s are far more common so it might be an option

http://boomboxery.com/forum/index.php/topic/16282-smashing-sharp-gf9000/
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I'll look into it, I saw that post, doesn't look too difficult to caress into place. Thanks
 
Timecop1987

Timecop1987

Member (SA)
Obuffalo said:
great first project! I also enjoyed workin on my GF-9000 - i changed the speakers for a pair of Lasonic TRC-931 woofers. Pretty easy to work on for the start.


As for the missing parts such as battery-cover and sliders - you could ask member nikonfoo..best source for parts :-D :yes:
Click to expand...
Cheers for that, are they much better speakers?
Click to expand...
it really depends on what you like - as for originality the factory speakers do the thing. and IMHO they also sound quite good! Mine were dirty and had rotten surrounds (beyond repair for me) so i had to replace 'em. In my books they look and sound better than the originals.

good luck!!
 
Obuffalo

Obuffalo

Member (SA)
Hi again, does anyone have any photos of how there wiring looks on the inside as I'm pretty sure this is wired wrongIMG_20200117_201417.jpgIMG_20200117_201425.jpg

I didn't do it.

Ok rewired it, now I'm getting a buzzing which I presume is the transformer issue and a mild burning smell.
 
Obuffalo

Obuffalo

Member (SA)
Yeah it was weird, all the speakers were wired up backwards so the cable was too short. Also weird thing happening, it's getting a buzzing sometimes, then sometimes the tape motor runs when I press the FF RR play ect (needs belts) but no lights come on anywhere. Any ideas
 
Obuffalo

Obuffalo

Member (SA)
Hi all, I'm kinda stuck, I was told the transformer was gone initially so I've tested the output and via mains it's 17.63v approx and with the battery it's 16.35v does this seem like it's not a transformer issue and something like caps. I've checked the caps on the board the power supply goes to and they are fine. Is this gonna be a case of complete strip and check everything because I'm not feeling qualified enough for that, 😨
IMG_20200119_101651.jpg


Also when I press play the motor turns even when the power button is off.
 
docs

docs

Member (SA)
There might be a cabling diagram in the service manual. I would try and check this to ensure all is well. I would disconnect as I went along to determine whether I get the exact same symptoms. Though it is not entirely clear what the problem is exactly?

There are a number of units which will play the cassette without being powered on. I think so you can listen to a tape and when it gets to the end the unit is off, meaning you don't need to get up and turn it off.
 
caution

caution

Member (SA)
Obuffalo said:
Also when I press play the motor turns even when the power button is off.
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Yes. There's an internal power switch ahead of the main power button, activated when the deck is used, so the entire box shuts down after the tape's finished. It's known as the sleep function. Tons of boxes have this feature.

What docs said :lol: didn't see your response! LOL
 
Obuffalo

Obuffalo

Member (SA)
caution said:
Yes they are ok.
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thanks, didn't want to start without having that bit right, the other components are easy to find, that not so much.

Can someone confirm the belt sizes frx11.5 scq6.0 scx5.1 thanks
 
Northerner

Northerner

Boomus Fidelis
No idea. I’ve never checked belt sizes ever, I just put on what fits from my stock. I was lucky enough to blag the remaining belt stock from a closing repair shop which makes it a lot easier!
 
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