Ice Tube Clock Boost Issues

For RTC breakouts, etc., use the Other Products from Adafruit forum

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
pircapadi
 
Posts: 3
Joined: Sat Jun 09, 2012 12:16 am

Ice Tube Clock Boost Issues

Post by pircapadi »

I have started assembling my Ice Tube Clock but I am not getting the mentioned boost voltage at the second measuring step.

I am using a 12VDC 2.5A plug pack and the board beeps when I plug it in.

Some measures I took:
7805 pin 1 11.76V
7805 pin 3 4.93V
IC1 pin 12 0.56V
IC1 pin 7 4.65V
Q2 G 0.56V
Q2 S 0V (continuity to GND)
Q2 output (D) 11.8V

Pictures of the board:
Image
Image

Any suggestions?

User avatar
adafruit_support_bill
 
Posts: 88141
Joined: Sat Feb 07, 2009 10:11 am

Re: Ice Tube Clock Boost Issues

Post by adafruit_support_bill »

Check the battery on your meter. Your 7805 output looks just a little low.

What do you read at the striped end of D3?
How about pin 13 of the processor?

User avatar
pircapadi
 
Posts: 3
Joined: Sat Jun 09, 2012 12:16 am

Re: Ice Tube Clock Boost Issues

Post by pircapadi »

I replaced the battery and still got the same reading on the 7805 (suspect I need to invest in a better meter).

The striped end of D3 measures 55.5V and IC1 pin 13 measures 1.2V

User avatar
pircapadi
 
Posts: 3
Joined: Sat Jun 09, 2012 12:16 am

Re: Ice Tube Clock Boost Issues

Post by pircapadi »

Just re-read the instructions and I was measuring at the wrong place. All is good now. Thanks for the help.

User avatar
adafruit_support_bill
 
Posts: 88141
Joined: Sat Feb 07, 2009 10:11 am

Re: Ice Tube Clock Boost Issues

Post by adafruit_support_bill »

Excellent! Looks like a good build so far.

Locked
Please be positive and constructive with your questions and comments.

Return to “Clock Kits (discontinued)”