Pioneer CRT3452 Service Manual page 76

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- Outline
A [Test Mode IN]
• [Test Mode IN] is a procedure for entering the DVD changer in the test mode.
• Once the DVD changer has exited from the test mode, restart the test mode from [Test Mode IN]
[Stage 0]
• This stage displays a version number of the bus microcomputer, checks the contents of detailed errors and
performs a system check.
- Operation Flow of [Test Mode IN] and [Stage 0]
• When performing the test mode of [Stages 1 to 6], be sure to insert a DVD video disc in Tray 1
B
of the magazine. (If DISC1 is not a DVD video disc, the test mode does not function normally.
• When performing the test mode of [Stage 7], be sure to remove all the trays of the magazine and
use a magazine in which no tray is inserted. (If a tray is inserted in the magazine,
Test Mode
Start
Diagnostic
Mode
DVD Changer
Test Mode
C
Bus Microcomputer
Version Display
00800000
If [00800000] is executed when no disc is not inserted
in the magazine and the door opens, return value [00870000] is reached and
no more operation is enabled. At that time, turn off/on ACC once and restart
the test mode from [Test Mode IN] after having inserted the magazine.
- Example of Test Execution
• Check a detailed error code.
D
1) Check the contents of an error
which is currently occurring.
2) Newly obtain error contents.
• Go to the next stage.
- Contents of Test
Command Test name
number
00800000 Bus microcomputer
E
version display
00810000 Detailed
error display
00820000 Power ON and
system check
00830000 Power OFF
00840000 All memory clear
00850000 Debug mode
00860000 System controller -
mechanical-unit
controller test start
F
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1
2
Test Mode IN, Stage 0
!! To prevent a malfunction and damage !!
a mechanical unit may be damaged.
While doubly pressing the [1] and [8] keys,
press the [DISC] key three times.
Doubly press the [AM] key and the
[SEEK/TRACK DOWN] key.
Detailed Error Power ON and
Display
System Check
00810000 00820000
: Execute [00810000].
: Execute [00840000], [00830000], [00820000] and [00810000] in this order.
: Execute [00860000].
Test contents
Execute test contents:
Press the DISC key.
Return to the command number
display: Re-press the DISC key.
Displays a bus microcomputer
version.
Displays a detailed error code.
Turns on the power.
Turns off the power.
Clears error histories recorded in
the system microcomputer.
** Factory Mode **
Displays debug.
Moves to the test mode.
XDV-M8357ZT/UC
2
3
Test Mode IN
Power OFF All Memory Debug Mode
Clear
00830000 00840000 00850000
Test contents selection item setting Return value
Selection switching: Pressing the
TRACK UP/DOWN key
3
4
Stage 0 System Check Mode
System Controller - Mechanical-
Unit Controller Test Start
00860000
Test Start
10940000
To Stage 1
Version number
OOO_XX (XX: error code)
For error contents, refer to the
error code table.
None
None
00800001
00800001
None
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