Logiq E9 Gtx Hv (High Voltage) Failure On Mrx Systems; Image Artifact Dead Channels - GE LOGIQ E9 Service Manual

D 5180483-100, R
IRECTION
7-9-27

LOGIQ E9 GTX HV (High Voltage) Failure on MRX Systems

Use this to troubleshoot GTX Boards P/N 5201044-3, Rev. C or earlier on LOGIQ E9 - 5205000-5, -6
console models.
On MRX systems, some signals (JTAG) in the new Backplane are not terminated correctly, leaving
voltages floating. Depending on tolerances on the GTX Boards, these floating signals may induce
incorrect logic levels causing High Voltage errors; some GTX Boards may be more sensitive to this issue
than others. This problem may be observed running Diagnostics or while scanning and it is very
intermittent.
An artifact may be seen on the 2D image, intermittently and/or an error message will appear reporting
a High Voltage error, and the system needs to be rebooted to continue normal operation.
How to identify:
1.) Image artifact: System appears to have dead channels.
7 - 334
PROPRIETARY TO GE
. 7
EV
Figure 7-200 Image Artifact Dead Channels
Section 7-9 - Troubleshooting Tips
LOGIQ E9 P
ROPRIETARY
S M
ERVICE ANUAL