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Re: Eeprom Initialization Issues / Question
Posted: Mar 14th, '17, 05:21
by AbeLovesSynths
All of my continuity readings check out there (when testing from the IC Pins and resistor legs, not the pads).
Where should I look next?
Re: Eeprom Initialization Issues / Question
Posted: Mar 16th, '17, 15:42
by AbeLovesSynths
Is the next step to swap chips?
Re: Eeprom Initialization Issues / Question
Posted: Mar 16th, '17, 23:49
by lukep_gdansk
there is no other option i think
Re: Eeprom Initialization Issues / Question
Posted: Mar 17th, '17, 03:27
by AbeLovesSynths
I swapped it out with a new IC - still can't get past the Play/Enter prompt to initialize.
I still have continuity between enter and IC105.
What is the next point down the line? Mine is 1.1, I haven't seen any schematics for the new version.
Re: Eeprom Initialization Issues / Question
Posted: Mar 17th, '17, 11:03
by e-licktronic
AbeLovesSynths wrote:I swapped it out with a new IC - still can't get past the Play/Enter prompt to initialize.
I still have continuity between enter and IC105.
What is the next point down the line? Mine is 1.1, I haven't seen any schematics for the new version.
Is Shift, Clear, Last Step, instrument, scale button working ?
If not IC100 is dead, replace it
Best regards,
e-licktronic
Re: Eeprom Initialization Issues / Question
Posted: Mar 17th, '17, 15:44
by AbeLovesSynths
Will those functions work without initializing the eeprom?
I'm not clear as to what should or shouldn't work prior to initializing.
Re: Eeprom Initialization Issues / Question
Posted: Mar 17th, '17, 18:31
by AbeLovesSynths
Swapped out IC100 and now all of those functions seem to work - before the buttons lit up, but the screen didn't change - they do now.
Should the nava work 100% without EEprom initialization?
The manual covers deeper functions, but not simple pattern editing.
I'm assuming that selecting an instrument and hitting buttons 1-16 should create a pattern with that instrument, but currently none of those instrument/step buttons light up.
Does adjusting the 5V after inserting ICs run the risk of burning those ICs? I rarely experience bad ICs in a build.
Re: Eeprom Initialization Issues / Question
Posted: Mar 18th, '17, 18:36
by AbeLovesSynths
What IC controls the LEDs for the step switches and enter? I assumed they would be the same as the ones for the switches, but i'm not sure.
My LEDs should be correct but they don't light, when the unit plays. I can trigger drums out in tap mode, and change instruments, so I know the switches work, but they don't light.
I'm wondering if the EEProm actually is being initialized, but I can't see the progress....
Re: Eeprom Initialization Issues / Question
Posted: Mar 19th, '17, 09:23
by e-licktronic
AbeLovesSynths wrote:What IC controls the LEDs for the step switches and enter? I assumed they would be the same as the ones for the switches, but i'm not sure.
My LEDs should be correct but they don't light, when the unit plays. I can trigger drums out in tap mode, and change instruments, so I know the switches work, but they don't light.
I'm wondering if the EEProm actually is being initialized, but I can't see the progress....
Here is how are leds connected:
[resize=800]
https://scontent-fra3-1.xx.fbcdn.net/v/ ... e=595C0E66[/resize]
Re: Eeprom Initialization Issues / Question
Posted: Mar 19th, '17, 20:28
by italofrans
have you checked the polarity of the led's ? it is unlikely that all led's or drivers ic's are not working.