Panasonic JS-170FR Series Service Manual page 100

Front counter register
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6)
Video test
(1) Enter "6-ENTER" through the keyboard.
Select and press ENTER key : 0_
6-1) Display test
(1)
Enter "1-ENTER" through the keyboard.
(2) Confirm that the back-lite is turned ON/OFF three times.
(3) Since an all-white screen is displayed, confirm the freedom from any problem, such as dot missing and error display. If
the result is OK, press the "1" key. In case of NG, press the "2" key.
ENTER 1 (OK) or2 (NG)
(4) Since an all-black screen is displayed, confirm the freedom from any problem, such as dot missing and error display. If
the result is OK, press the "1" key. In case of NG, press the "2" key.
(5) Since a cross hatch screen is displayed, confirm the freedom from any problem, such as distortion, dot missing, and
error display. If the result is OK, press the "1" key. In case of NG, press the "2" key.
LCD DISPLAY
***** TEST # 6 Video Test. ****
0 : Return to MAIN MANU.
1 : Display Test.
2 : VRAM Test.
LCD DISPLAY
***** TEST # 6 Video Test. ****
3-16
0
1
2
ENTER
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