Read Sharp SD-PX15H (serv.man20) Service Manual online
SD-PX15H
2 – 2
4. Data from the DVD unit is checked. Wait until both of the following
conditions are satisfied (under AND condition).
b5 Decoder Power up Complete of Byte No. 28 = 1
Byte No. 31, CD (P.U.) Mechanism Status = 0x0A
5. Check that “COMPLETE” appears on the FL display under the
above conditions.
Turn off the power manually to exit the test mode.
If the conditions are not met after 20 seconds, DVD+B is set to off.
“INIT ERR” is displayed and the main unit is set to the stand-by
mode until the POWER button is pressed.
“INIT ERR” is displayed and the main unit is set to the stand-by
mode until the POWER button is pressed.
2.3. Supplementary Note
1. When entering this TEST Mode, it is prohibited to press any button
until the above processing is completed.
2. When performing the processing shown in step 5 above only the
Power button input is accepted.
3. KEY TEST Mode
3.1. Outline
In the KEY TEST Mode, it is checked that the system’s microcomputer
normally recognizes the main unit’s keys.
normally recognizes the main unit’s keys.
3.2. TEST Mode Operation
In this mode, power is on and the FL display is in the stand-by mode
(nothing is displayed). Then, a corresponding segment (see the follow-
ing table) for the key recognized by the system microcomputer
appears on the 8-digit display section. When the power button is
pressed, the entire display lights up for 2 seconds then the power turns
off, and the test mode is canceled.
(nothing is displayed). Then, a corresponding segment (see the follow-
ing table) for the key recognized by the system microcomputer
appears on the 8-digit display section. When the power button is
pressed, the entire display lights up for 2 seconds then the power turns
off, and the test mode is canceled.
4. AMP TEST Mode
4.1. Outline
In the AMP TEST Mode, the system is controlled in the exact same
way as in the normal power-on except for volume control. Functions
can be switched, DVD played, and multichannel including AC3 and
DTS controlled normally.
way as in the normal power-on except for volume control. Functions
can be switched, DVD played, and multichannel including AC3 and
DTS controlled normally.
Differently from the normal operation, volume is turned up/down only
by 4 steps (0-1-25-40).
by 4 steps (0-1-25-40).
4.2. TEST Mode Operation
1. When entering this TEST Mode, turn on the power normally to start
up from VTR (VTR1).
2. Startup volume level: 25 (-16 dB); Surround Mode: STEREO.
3. Volume level turned up/down only by 4 steps (0-1-25-40).
Press the volume control key to turn up/down the volume.
4. “AMP TEST” is constantly displayed in 8-digit display section of the
FL display (lower 5 x 7 dots). The display changes for 3 seconds
only for the following operations. Other than the 8-digit section is
displayed in the same way as usual.
only for the following operations. Other than the 8-digit section is
displayed in the same way as usual.
On the other FL display sections, normal operation displays are
shown.
shown.
• Volume level displayed when the volume is turned up/down.
• Frequency displayed when the mode is changed to the TUNER
Function.
• DVD PLAY/PAUSE displayed for 3 sec. after this operation
starts.
• When errors occur, the error display continuously shown until
error recovery.
* Elapsed time is not displayed during DVD/CD playback.
5. TUNER TEST Mode
5.1. Outline
Normally turn on the power to start the TUNER TEST Mode from the
TUNER Function. Operation and display after start-up are exactly the
same as in the normal operation except that frequency is already set in
the Tuner Preset from the start as shown in the table below.
TUNER Function. Operation and display after start-up are exactly the
same as in the normal operation except that frequency is already set in
the Tuner Preset from the start as shown in the table below.
5.2. TEST Mode Operation
1. When entering this TEST Mode, normally turn on the power to start
up from the preset station No.1 of the TUNER Function. (Make sure
the following frequencies are preset.)
the following frequencies are preset.)
2. After startup, operate normally.
3. When pressing the Power button, improper data is written on the
data for RAM checking to reset. Thus memory failure is detected
during reset processing and the microcomputer’s setting is initial-
ized.
during reset processing and the microcomputer’s setting is initial-
ized.
6. DVD TEST Mode
6.1. 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.
All other segments light off.
(Display is shown by OSD. Main unit display not available.)
6.2. 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_TEST” is continuously displayed. All
other segments light off.
ing the TEST Mode, “DVD_TEST” is continuously displayed. All
other segments light off.
In this TEST Mode the followings are displayed on the FL display
Upper 5 x 7 dots: TEST_
Lower 5 x 7 dots: DVD_XXXX”
KEY
Segment
KEY
Segment
EJECT
KEY_1A_ _
VOL UP
JOG_UP_ _
TUN
KEY_1B_ _
VOL DOWN
JOG_DOWN
FUNC
KEY_1C_ _
SKIP UP
KEY_1D_ _
SKIP DOWN
KEY_1E_ _
STOP
KEY_1F_ _
PLAY
KEY_1G_ _
M1
76.0M
M2
108.0M
M3
77.0M
M4
106.0M
M5
89.0M
M6
83.0M
M7
522k
M8
1629k
M9
603k
M10
1404k
M11
990k
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