FG085 issue

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DoruGheorghe1
Posts: 2
Joined: Fri Dec 27, 2013 12:04 am

FG085 issue

Post by DoruGheorghe1 »

I have purchased an FG085 kit recently.
I have assembled all of the components and i have the following problem:
When I power up the device, the device is in sine wave mode and generates 1000 Hz with 5 Volts peak-to-peak.
I can vary the frequency using the adjustment encoder but no other key is generating any kind of reaction.
Please note that i have checked all of the keys - there are no short circuits and the keys make contact properly.
The firmware versions displayed at startup are:
Main: 08501-130
DDS: 08502-050
The board data is:
PN: 109-08500-00G
S.N: 0851328YZ1368
Attachments
fg085front.JPG
fg085front.JPG (470.6 KiB) Viewed 9117 times
jye1
Posts: 1221
Joined: Wed Feb 20, 2013 4:58 pm

Re: FG085 issue

Post by jye1 »

Did you check button orientation? If any button installed reversed the whole keypad will not function.

Did the rotary switch work?
DoruGheorghe1
Posts: 2
Joined: Fri Dec 27, 2013 12:04 am

Re: FG085 issue

Post by DoruGheorghe1 »

Hello:
Here are answers to your questions:
1. All of the switches are properly positioned and close the circuit when pressed. I have checked them both in the released and pressed positions.
2. The rotary switch "ADJ" has two different motions:
a. Rotation - allows me to adjust the frequency.
b. Push - has no effect
Is there anything else I can check?
jye1
Posts: 1221
Joined: Wed Feb 20, 2013 4:58 pm

Re: FG085 issue

Post by jye1 »

When installing the buttons the side with double-vertical must face the end of PCB where DC socket locates.
ButtonOrientation.jpg
ButtonOrientation.jpg (28.41 KiB) Viewed 9109 times
It is suggested to remove the front panel and check if any button was stuck. Even one is stuck the whole keypad would be dead.
danielRosenthal
Posts: 3
Joined: Fri May 30, 2014 9:20 pm

Re: FG085 issue

Post by danielRosenthal »

Did you determine what was causing this? I'm having the same issue. All buttons are pointing in the right direction, and none seem to be short circuited. All look correct in both the open and closed position.
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