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Discussion Starter #1
I changed the battery, did the resest and the watch is running well. The stopwatch work, i can set the time etc. But it starts to act weird when i press the light button, the screen will go blank but no light. The screen comes back after a few seconds. The same happens with the sound fuction which also doesnt ring properly. Did i do something wrong when changing the battery? Or does anyone know how to fix it?

An image showing what i thought was the AC to short circuit with after a battery replacement.

453016
 

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Either a high resistance fault (bad connection), or just try a different battery, it could be faulty.
 
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Discussion Starter #3
Either a high resistance fault (bad connection), or just try a different battery, it could be faulty.
I tried another good quality sony battery but the issue persists. Not sure if i did something wrong but it could other well be a faulty connection somewhere in the movement.

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I have to say a lot of these g757 movements are fragile and do feel a bit cheap......but on the plus side they look super cool.
 

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Discussion Starter #5
I have to say a lot of these g757 movements are fragile and do feel a bit cheap......
Thats what i have read too unfortunately. However, these days they are anything but cheap and one of the moest expensive vintage seiko LCD's.
 

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There are a lot of contact points on this movement, four on the battery clamp- with two of these touching pcb pads.
There are also the spring contacts from module to case, and the button to pcb contact points.
I'd suggest you have a look at the tech pdf, which shows all contact points, give the whole lot a clean, and see if it cures it.
 

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Discussion Starter #7
There are also the spring contacts from module to case, and the button to pcb contact points.
I'd suggest you have a look at the tech pdf, which shows all contact points, give the whole lot a clean, and see if it cures it.
Thanks for the sugestions. Worth giving a try.
 
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