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Sharp GF-5757HB line-in?


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#1 LJV

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Posted 22 November 2012 - 01:16 PM

Just a simple question - does this model have any type of stereo line-in connector? (not mono microphone-in, I don't need that)

I'd like to buy it, but i can't read it from the pic in the add, and the owner is clueless.

Posted Image

Thanks in advance.

Posted Image

#2 k2j

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Posted 22 November 2012 - 01:19 PM

Sweeeeet sharp :drool: . Thanks for the post, I don't have that model on my spreadsheet yet. Do you have anymore photos you can post?

#3 LJV

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Posted 22 November 2012 - 01:32 PM

There is a lot of pics of that model on Google image search. Here is the one in different color scheme.

Posted Image

#4 Line Out

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Posted 22 November 2012 - 01:47 PM

The DIN connector on the pack reads "AMP"... I doubt that it has just a line out on it, can't be sure.

#5 LJV

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Posted 22 November 2012 - 01:52 PM

The DIN connector on the pack reads "AMP"... I doubt that it has just a line out on it, can't be sure.


I'm unsure too. It seams like DIN out to Amplifier, and it looks like there are one or two stereo connectors on the right, but I can't read what it written underneath. I mean, it would be strange for it not to have any kind of line-in, right?

#6 baddboybill

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Posted 22 November 2012 - 01:57 PM

No switch for line in usually means no true line in. Probably just through cassette deck which usually s--ks :thumbsdown:

#7 LJV

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Posted 22 November 2012 - 03:16 PM

Found better pic on net finally, the other connector is EXT MIC. :

It sounds unbelievable that it has out to amplifier, out to headphones, internal mic, in for external mic but no line in :hmmm:

#8 Mark GF-575

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Posted 22 November 2012 - 04:15 PM

It's a 5-DIN . There's a diagram showing pins 1 and 4 as audio out, pins 5 and 3 as audio in. Maybe the connection is two-way :hmmm:


http://en.wikipedia....i/DIN_connector

#9 LJV

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Posted 22 November 2012 - 04:28 PM

It's a 5-DIN . There's a diagram showing pins 1 and 4 as audio out, pins 5 and 3 as audio in. Maybe the connection is two-way :hmmm:


http://en.wikipedia....i/DIN_connector


Indeed. My thoughts exactly, but manufacturers frequently build in 5 pin DIN connector just for the sake of wider compatibility with 5 pin DIN cable. That way they can't miss. I've seen it too many times - 5 pins and only 3 used. User manual or schematics would solve the problem, but I couldn't find any.

#10 Mark GF-575

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Posted 22 November 2012 - 04:52 PM

If you're just wanting a line-in to play music from a mp3 player or phone buy a FM transmitter. Check my thread from here then scroll down a bit. :-D

#11 LJV

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Posted 22 November 2012 - 05:15 PM

If you're just wanting a line-in to play music from a mp3 player or phone buy a FM transmitter. Check my thread from here then scroll down a bit. :-D


That never crossed my mind, thanks!

#12 Mark GF-575

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Posted 22 November 2012 - 05:19 PM

If you're just wanting a line-in to play music from a mp3 player or phone buy a FM transmitter. Check my thread from here then scroll down a bit. :-D


That never crossed my mind, thanks!


Happy to help. :-D

#13 acidbob

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Posted 29 August 2015 - 06:05 AM

Schematics are here,

 

Some models have line in, as you can see in the schematic, some do not.

I am not sure if the mic in would work as I think it only goes to tape.

But the DIN socket however has all the pins connected.

Attached Files



#14 acidbob

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Posted 30 August 2015 - 05:47 AM

Here is how to install a true line in on a GF-5757 and GF-600.

 

You need to use a 5 pin stereo 3,5 mm minijack (normalized/Switching) Whatever you call.

Ebay is your friend.

 

Maybe this works on other GF models as well.

 

This taps into the radio line and when the jack is inserted it switches the radio line off and uses the jack instead.

 

It's not the best idea to use tape line because you would need to press the play or record button, this is because the amplfier IC is turned off when the radio is not on "play mode"

 

No caps and no extra resistors needed.

 

You do need to connect the GND from the minijack to somewhere on the PCB where there is a real GND ref.

 

GL :)

Attached Files



#15 trippy1313

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Posted 30 August 2015 - 07:34 PM

Pretty cool. Try to take pics and post up the process as you go.

#16 DemonKDV

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Posted 09 March 2016 - 01:12 PM

Schematics are here,
 
Some models have line in, as you can see in the schematic, some do not.
I am not sure if the mic in would work as I think it only goes to tape.
But the DIN socket however has all the pins connected.


Thanks you!!

#17 Disgraceland

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Posted 02 November 2016 - 07:54 AM

Here is how to install a true line in on a GF-5757 and GF-600.

 

You need to use a 5 pin stereo 3,5 mm minijack (normalized/Switching) Whatever you call.

Ebay is your friend.

 

Maybe this works on other GF models as well.

 

This taps into the radio line and when the jack is inserted it switches the radio line off and uses the jack instead.

 

It's not the best idea to use tape line because you would need to press the play or record button, this is because the amplfier IC is turned off when the radio is not on "play mode"

 

No caps and no extra resistors needed.

 

You do need to connect the GND from the minijack to somewhere on the PCB where there is a real GND ref.

 

GL :)

Thanks for this. I'm going to give it a go tonight.

 

A few additional resources here that people may  find useful.

 

Firstly, the full service manual http://elektrotanya....f/download.html

 

 

Second, if you live in the UK then Maplins sell the minijack suggested - http://www.maplin.co...eo-socket-fk20w

 

And lastly, this is a zoomed in image showing the points where, I believe, you should be tapping into. I'm going to unsolder resistors R47 and R48, solder wires back onto the board and then bring this out to the miniojack.

 

I'll post pictures when i'm done (if it works :-) ).

 

i5nek7.png



#18 Andy Nolan

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Posted 05 December 2016 - 12:12 AM

Hi, I'm new to the forum.

 

I've just bought a GF5757 with the intention of installing a line in so I'd be really interested to see how your upgrade went Disgraceland! I hope it worked as planned...

 

Cheers

 

Andy



#19 Disgraceland

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Posted 25 January 2017 - 07:19 AM

Found some pics on my phone, so craeted a quick gallery for you

 

Hi, I'm new to the forum.

 

I've just bought a GF5757 with the intention of installing a line in so I'd be really interested to see how your upgrade went Disgraceland! I hope it worked as planned...

 

Cheers

 

Andy

Found some pics on my phone so created a gallery for you.

 

 

http://imgur.com/gallery/qtZsh

 

 

Most importantly:

 

Ground connection

 

E1yQB9X.jpg

 

 

Points to access the board:

LCRQAoo.jpg?1



#20 Dancorp

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Posted 17 December 2017 - 01:23 PM

Work like a charm ! 

Thanks a lot guys