Detector Daughter Board Troubleshooting - GE Medical Systems PRODIGY Service Manual

Diagnostic LED's in figure 4-6

4.22 Detector Daughter Board Troubleshooting

DPX-NT Service Manual (Rev A- 1999)
• A - (Green) Power +12 VDC Present
• B - (Green) Power - 12 VDC Present
• If the 12 VDC power LED's are not illuminated power down the
scanner, wait 30 seconds and power back up (see section Chapter
2.1.2)
• Check +5, +/-12 VDC Power Supply 1
• C - (Green) DMB PLD Programmed and ready
• If the DMB PLD LED is not lit verify FIRMWARE version with the
Service Software (Tools/Set Download Parameters / Query), if
necessary download to the DMB.
• D - (Green) DDB 1 PLD Programmed
• Verify the DDB card is seated in its socket
• E - (Green) DDB 2 PLD Programmed
• F - (Green) DDB 3 PLD Programmed
• G - (Green) DDB 4 PLD Programmed
• H - (Red) Data Sent to SBC (should flash when acquiring data)
• I - (Red) Data Sent to SBC (should flash when acquiring data)
• J - (Green) Detector Reset
• Verify Communications with the SBC
• Verify All DC voltages are Present on the DMB
• K - (Green) +5 VDC present
• Check +5, +/-12 VDC Power Supply 1
• L - Detector Mother Board Reset Button
Troubleshooting 4-149