Pioneer CRT3452 Service Manual page 78

1
-
Outline
[Stage 2] sets and selects a disc type and test mode.
A
-
Operation Flow of [Stage 2]
Stage 2 Disc Type Decision Mode
Return to EJECT
Stage 1.
20020000 20030000
B
Test Mode
10940000
To Stage 1
After the [20030000] magazine has
been ejected, the test mode cannot be
continued.Turn off/on ACC once and restart
the test mode from [Test Mode IN].
-
Example of Test Execution
•
Go to [ Stage 3]: Execute [20211000], [20211000] and [2006000] in this order.
•
Go to [ Stage 7]: Execute [20240000].
C
When the mechanical unit test mode is executed, the [20070000] Execution is unnecessary
because there is no disc in the magazine.
-
Contents of Test
Command Test name
number
20020000 Return to Stage 1
20030000 EJECT
D
20040000 Replayed Status
Display
20060000 Servo Initialization Initializes a servo system.
20070000 Disc Type Decision Decides a disc type to set a servo
E
20211000 Tray Selection
↓
20240000 Automatic
Adjustment Value
Display
20400000 Mechanical-Unit
F
Controller Test
Mode
78
1
2
Stage 2
From
Stage 3,
Stage 4 and
Stage 5 From Stage 1
Return to
Stage 2
X0050000
Replayed Servo
Status Display Initialization
20040000 20060000
LD ON
30130000
To Stage 3
When the test enters
If it is not executed, the test mode does not function normally.
A disc type selected for
Similarly, a type of an LD (laser diode) selected for
match a disc type selected for
Test contents
Execute test contents: Press the DISC key. Selection switching: Pressing the
Return to command number display:
Re-press the DISC key
Returns to Stage 1.
Ejects the magazine
Displays a replayed status.
gain in accordance with the disc type [20070000] CD setting
used for test.
Clamps an optional disc
Toggle-selects an adjustment value
to be displayed.
Moves to the mechanical-unit
controller test mode.
XDV-M8357ZT/UC
2
3
∗∗ When executing [20400000] and
performing the mechanical-unit controller test
mode of [Stage 7], be sure to remove all the
trays from the magazine and use a magazine
in which no tray is inserted. (A mechanical
unit may be damaged.)
Only the tray in which a
Test Start disc is inserted can be selected
for the [10211000] tray
selection.
10940000
Disc Type Tray Automatic Adjustment
Decision Selection
20070000 20211000
∗∗ For the [20070000] Disk Type
~ [20070000] = [20211000] = [30130000] ~
[ ]
Stage 2 , be sure to execute [20070000].
[ ]
20070000 must match that selected for
[
30130000
[ ]
20070000 .(If it does not match,
the test mode does not function normally.)
Test contents selection item setting Return value
TRACK UP/DOWN key
Whether carriage returns to the home
position is selected at ejection.
[2003000] With home carriage
[2031000] Without carriage home
Whether a servo system automatic
adjustment is performed or
not is selected at servo initialization.
[20610000] With offset adjustment
(Usually set to offset adjustment)
[20060000] Without offset adjustment a selection result)
A disc type is decided.
[20071000] DVD1 layer setting
[20072000] DVD2 layer setting
[20073000] Reserved
A tray number is selected.
Executes [2021X000] "X"
matching an optional tray number
Toggle-selects an adjustment value
to be displayed.Display at selection
"0" [20240XXX]
"1" [20241XXX]
"2" [20242XXX]
3
4
From Stage 7
Mechanical-Unit
Controller Test End
70450000
Mechanical Unit
Value Display Test Mode
20400000
20240000
ELV/Tray
Selection
70410000
To Stage 7
[ ]
20211000 .
] [ ]
of Stage 3 needs to
00000000
00000000 (With carriage home)
00000001 (Without carriage home)
00000000 (at servo OFF)
01010101(Servo initialization state)
02020202(at focus servo ON)
ID number (at DVD replay)
MSF number (at CD replay)
00000000(Irrespective of
00000000(at CD selection)
00000001(at DVD1 layer selection)
00000002(at DVD2 layer selection)
00000003(Reserved)
0000000X("X" is a tray number.)
Refer to the appended table.
00000000
4