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SV-SD350VGC, SV-SD350VGH, SV-SD350VGK, SV-SD350VGT, SV-SD350VSG, SV-SD300EB, SV-SD300EG, SV-SD300GC, SV-SD300GN, SV-SD300SG - Panasonic Audio Service Manual (repair manual). Page 9

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9
6.3.
SERVICE 1
LCD Display Mode Switching
[ Content ]
Because the display content must be checked during service
mode execution, the LCD backlight is always ON at this menu.
[ Operating procedure ]
1. Select [ SERVICE 1 ] on the service mode menu and then
press the [PLAY/STOP] button, then displayed the LCD
display mode switching screen.
2. Use the [+] and [-] buttons to select "ON", and then press
the [PLAY/STOP] button to execute display mode switch-
ing.
It returns to the audio mode after executes it.
NOTE:
Another SERVICE mode should be executed within 1
minute after switching is performed. If the auto power OFF
function is activated, the system returns to the "display ON/
OFF control enabled" mode.
6.4.
SERVICE 2
Device Key Serial Number
Display
[ Content ]
This display is used to verify that the device key is written to the
main PCB's IC4 (Flash ROM) without error.
[ Operating procedure ]
1. Select [ SERVICE 2 ] on the service mode menu and then
press the [PLAY/STOP] button, then displayed the device
key serial number information.
Judgment:
If the device key serial number fails to display, there is
a problem with the IC4 (Flash ROM).
2. Turn the power OFF to complete the procedure.
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