Operator Panel; No Audio; No Video On Touch Panel Display; Wrong Key Activated On The Touch Panel - GE LOGIQ E9 Service Manual
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Also See for LOGIQ E9:
- Service manual (808 pages) ,
- User manual (256 pages) ,
- Technical publication (127 pages)
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D
5180483-100, R
IRECTION
7-9-10
Operator Panel
7-9-10-1
No Audio
See: 7-5-16-3 "Audio (Sound)" on page 7-129 and I/O Board Audio Test on 7-5-12-11 "I/O Board Tests"
on page 7-83 for audio diagnostic tests.
•
Check volume settings in the application and also in Windows.
•
Use headphones, (the type that you use on a personal CD player or a laptop) to test the audio output
directly from the back of the BEP.
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-
-
7-9-10-2
No Video on Touch Panel Display
See: 7-5-14-6 "Video Card" on page 7-118 and the video status test on 7-5-12-11 "I/O Board Tests" on
page 7-83 for video card diagnostic tests.
•
If the video is too dim, has dimmed areas or there is no video at all, replace the HV LCD inverter.
•
If the HV LCD inverter is burnt, there is a possibility that the Digital Video Card on the PC also got
damaged; in that case you can replace the Video Card.
•
Replace the Back End Processor if the problem continues.
•
Replace upper panel assembly.
7-9-10-3
Wrong Key Activated on the Touch Panel
•
Perform Touch Screen Verification Utility, check first before calibrating. See: 7-5-16-1 "Keyboard"
on page 7-126.
•
Calibrate touch panel.
•
Replace Upper Panel Assembly.
7-9-10-4
Wrong System Date and Time
•
Order CMOS Battery and BIOS Blaster CD, refer to BEP parts Section 9-13 "Back End Processor
(BEP) parts" on page 9-72.
PROPRIETARY TO GE
. 7
EV
If no Audio is present on the BEP, reload software. If the problem persists, replace the BEP.
If Audio is present, follow the audio signal to the Op Panel (the audio amplifier is located in
the upper Op panel). The Audio output from the BEP goes to the Internal I/O and from there
to the Op Assemb ly (use an adapter to plug the headphones to the RCA outputs of the Internal
I/O). If Audio outputs are working, replace Upper Op Assembly. Otherwise replace Internal I/
O board.
Always measure the speakers' impedance; it should measure approximately 7 ohms. If
speakers are bad, it is possible that the amplifier on the Upper Op Assembly might be
defective, too.
Chapter 7 Diagnostics/Troubleshooting
LOGIQ E9 P
ROPRIETARY
S
M
ERVICE
ANUAL
7 - 235
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Table of Contents
Troubleshooting
