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ページを印刷するProblem description:
The lower, operational screen of the SQA is blank, but lit OR it displays black lines on a yellow
background.
Procedure
STEP 1:
1. Re‐install the SQA‐V software.
2. If the software is successfully installed and the screen is still blank – go to Step 2
3. If the software was not installed successfully based on:
a.
ACK error: This is a FLASH MEMORY failure. The SQA‐V must be sent back to MES LTD for repair as an RMA.
b. TIME OUT error: This is a communication failure between the SQA and the PC. Verify that the SQA‐V is
connected to the correct COM port on your PC and also that the COM port is defined properly.
If the port is functioning: Press the SERVICE button while sequentially switching the device on and off twice. Try
c.
to install the software again. If the installation fails again –go to Step 2.
STEP 2:
1. Make sure that the SQA‐V is turned off and
dissconnected from any source of electricity.
2. Open the SQA‐V.
3. Verify that the harness that connects the
user screen and the main board is in the
correct position and is properly connected
(see Figure 1).
4. If the problem persists go to Step 3.
STEP 3:
1. Verify that the harness connecting the main
board to the PC is properly connected (RS232
cable).
2. Tighten the harness connector at location J5
on the main board (see Figure 2).
3. If the problem persists go to Step 4.
STEP 4:
1. Verify that the Main board processor is positioned according to the instructions in Appendix 1 of this bulletin.
2. Replace the processor if the problem persists.
3. If the screen is still blank after replacing the processor‐ go to Step 5.
STEP 5:
1. Replace the LCD operational screen according to the instructions in Appendix 2 of this bulletin. The instructions can also
be found on Page 19 in the SERVICE MANUAL.
2. If the problem persists with the new screen – send the SQA back to the manufacturer (MES) for a repair RMA.
File Name: Tech Bulletin_SQA_Blank Screen_12_OCT_10
Technical Bulletin‐ Blank Lower Operational Screen
Applies to the following: ALL SQA‐V (V, Vb, Ve, Vp and Vt)
Issue date: October 12, 2010
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Note the alignment of
the red line on the cable
MB side
Figure 1: Verify the flat cable is properly connected
Figure 2: J5 connector on the main board
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LCD screen side
J5
connector
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