Test Mode - Sharp CD-SW250DVD Service Manual

Dvd mini system
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CD-SW250DVD

[5] TEST Mode

1. TEST Mode Functions
1.1. Entering the TEST Mode
While holding down both the
of the main unit from the power-off state, press the ON/STAND-BY
button to enter the Test Menu Mode.
1.2. Test mode processing
When entering the TEST Mode, the ROM version are displayed as
follows.
Version on the FL display: BD***** (****: Version No.)
1.3. TEST Mode button
Press direct designation button during the version display to enter
the specified TEST Mode as shown below.
TEST MODE
No.
TEST Mode
1
SHIPPING TEST
open/close
2
DVD TEST
DVD/CD
3
DVD DISPLAY TEST
disc 2
1.4. Canceling TEST Mode
1. Press the ON/STAND-BY button in each TEST Mode.
2. It is necessary to play-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 E2PROM
in the unit is initialized.
System Microcomputer and DVD changer initializerd
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 Initiation is completed.
Manually play off the A/C cord to get out of the TEST Mode.
When lnitialization is failed, "ERR" remains to be shown on the FL
display until play 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/DEMO button
Direct Designation Button
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, "DV******" (******: dvd version is shown on
the FL display.
(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, "DV******" is continuously displayed.
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