Test Mode - Sharp XL-DV484W Service Manual

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[2] TEST MODE

1. TEST Mode Functions
1.1. Entering the TEST Mode
While holding down both the
main unit from the power-off state, press the ON/STAND-BY button
toenter the Test Menu Mode.
1.2. Test mode processing
When entering the TEST Mode, the ROM version are displayed as fol-
lows
Version on the FL display: "UD. ****" (****: Version No.)
1.3. TEST Mode Button
Press direct designation button during the version display to enter the
specified TEST Modes as shown below.
No.
TEST Mode
1
SHIPPING TEST
2
DVD TEST
3
DVD DISPLAY TEST
1.4. Canceling TEST Mode
1. Press the ON/STAND-BY button in each TEST Mode to display
"CLEAR AL" except SHIPPING TEST. Then reset and start. (Clear
RAM.)
2. It is neccessary to plug,off the A/C cord after "FINISHED" is dis-
played on the FL for SHIPPING TEST.
2. Shipping TEST Mode
2.1. Outline
ID command for initialization is sent to the DVD unit and EEPROM
in the unit is initialized.
System micro computrer and DVD changer is initialized.
2.2. TEST Mode Operation
When entering the Shipping TEST Mode:
1. "WAIT" is displayed on the FL display .
2. "FINISHED" shall be kept displaying after initialization is com-
pleted.
Manually plug off the A/C cord to get out of the TEST Mode.
When initialization is failed, "NIT ERR" remains to be shown on the
FL display until plug off the A/C cord.
2.3. Supplementary Note
1. When entering this TEST Mode, it is prohibited to press any key
until the above processing is completed.
button and the X-Bass button ofthe
Direct Designation Button
OPEN/CLOSE
DVD/CD
DISC2
3. DVD TEST Mode
3.1. Outline
To send key codes of the TEST Mode 1 to the DVD unit to start the
TEST Mode.
Thereafter the system's microcomputer only sends key codes to
the DVD unit.
The main unit operation is started in the same way as the normal
startup of the DVD/CD Function.
Only monitor (video) output is normally controlled. "MUTE ON"
remained.
During this TEST Mode, "DVD TEST" is shown on the FL display
and change to "DVD****". (****:DVD Version)
(Display is shown by OSD. Main unit display not available.)
3.2. TEST Mode Operation
1. The TEST Mode is started in the same way as the normal startup of
the DVD/CD Function. Then the DVD unit is normally started. Dur-
ing the TEST Mode, "DVD****" is continuously displayed.
2 – 3
XL-DV484W

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