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Old 07-28-2011, 11:25 PM
 
Join Date: Feb 2008
Location: USA
Posts: 44
MetalicGlow is on a distinguished road
TC-22 with DX32 Went down big time.

My machine sat for 3 months. The last time I ran it, there were no issues.

I turn on the machine and it boots normally, loads the BMDC, press 7 to turn on drives, press 8 to home everything - no problems until I start pushing buttons:

The Tool Release Button is lit up green, but is non-responsive when pressed. There is no air line noise and can't feel anything mechanical moving. Dead as a door nail.

The + and - Buttons on the control are non-responsive when attempting to jog. However, the jog turn knob works.

The Run and Hold Buttons are non-responsive.

Speed and Feed Turn Knobs are non-responsive.

The spindle will start and run normally after entering the commands manually.

Current Status:

Here are the state of the LEDs on circuit boards (Which are all normal):

BMDC: Blinking Green/ Steady RED on D2 LED at the very corner of board

AUF: Blinking Red LED (D12)/ Steady Red LED (D11)

TLAUF: Blinking Red LED (D5)/ Steady Red LED (D4)

X, Y, Z Axis Boards: All 3 are Steady Green

I pulled the BMDC board and cleaned the contacts and reinstalled.

Checked continuity of all fuses.

I don't even know where to begin. Any suggestions would be greatly appreciated.
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Old 07-30-2011, 10:16 AM
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Is power going to these switches? Do not have print in front of me but on a V2XT these run on 12 VDC from the logic power supply and if the CMOS battery leaks it takes out the 12VDC. I would imagine the TC-22 uses the AUF and 24 VDC. There are 2 airplane type pop out breakers behind the AUF. I have had these develop a high resistance and some things stopped working. I have to find a print to see what is common to these switches.

George
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Old 07-31-2011, 08:53 PM
 
Join Date: Feb 2008
Location: USA
Posts: 44
MetalicGlow is on a distinguished road

Machintek,

I replaced the CMOS battery a while back and it still looks brand new.

I could not find any breakers behind the AUF card, but there were two fuses underneath the card that I overlooked when frantically checking the ones across the top of the cabinet a few days ago. Sure enough one of them was blown. I replaced the blown fuse and the monster has risen.

Once again, you help proves once again to be invaluable. Thanks!
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