Sony NV-U74, Service Manual

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NV-U74
13
2. moviNAND
When “moviNAND” on the screen is selected, and the “EXEC”
button is touched, NAND
fl ash memory (IC2001) is diagnosed.
When “OK” is displayed in the last, NAND fl ash memory (IC2001)
is normal.
When “NG!” is displayed in the last, NAND
fl ash memory
(IC2001) is abnormal.
But when software is updated, it always show “NG”.
Please ignore “NG” message.
3. KEY
When “KEY” on the screen is selected, and the “EXEC” button is
touched, the [
?
/
1
] switch of the main unit is diagnosed.
The check box of Power key reacts when the [
?
/
1
] switch of the
main unit is slide. (The check box of Voice key doesn’t react)
4. RDS
When “RDS” on the screen is selected, and the “EXEC” button is
touched, device ID of RDS IC is read.
When “ID is OK” is displayed, it is shown to be able to read de-
vice ID of RDS IC. It is displayed at the error as “Fail to Get RDS
Chip ID”.
5. GPS
When “GPS” on the screen is selected, and the “EXEC” button is
touched, GPS communication circuit is diagnosed.
When “GPS test ...... OK” is displayed, GPS communication cir-
cuit is normal. It is displayed at the error as “GPS test......Fail to
open GPS device” or “GPS test......Fail to get GPS version”.
10-3-2. HW Con fi g
When the “INFO” button is touched, the system will popup one
dialog to display information in detail.
10-3-3. TP LED
This mode is not used in this set.
10-3-4. Battery
The voltage of the lithium battery of the main unit is displayed
usually. It is displayed at the error as “---”.
XDISCHG is not used in this set.
10-3-5. CDO
1. ACC
The check box of ACC reacts when external power supply is sup-
plied.
2. HeadPhone
This mode is not used in servicing.
10-4. LCD/Touch Panel Test (LCD)
10-4-1. LCD color setting
1. Red
When “Red” on the screen is selected, and the “EXEC” button is
touched, red of the brightness max is displayed on full screen. To
release from this mode, touch the screen.
2. Green
When “Green” on the screen is selected, and the “EXEC” button
is touched, green of the brightness max is displayed on full screen.
To release from this mode, touch the screen.
3. Blue
When “Blue” on the screen is selected, and the “EXEC” button is
touched, blue of the brightness max is displayed on full screen. To
release from this mode, touch the screen.
4. White 100%
When “White 100%” on the screen is selected, and the “EXEC”
button is touched, white is displayed on full screen. To release
from this mode, touch the screen.