Service Mode - Sony CDP-CX300 Service Manual

SPECIAL FUNCTION
This unit is provided with several service modes.
Details are shown in the following table.
Mode name
ALL ERASE
AGING MODE
LOARDING AGING MODE
TABLE AGING MODE
DOOR POP UP AGING MODE
TABLE LOTATION MODE
TITLE MEMO SHIFT MODE
MODEL NAME DISPLAY
MICROPROCESSOR VERSION DISPLAY
ALL LIT MODE
MECHANISM ADJUSTMENT MODE
SHIPMENT MODE
TITLE MEMO RECORDING CHECK MODE
Note 1
Do not execute unless with a proper reason, otherwise the memory of the title memo recorded by the customer will be erased.
The title memo recording check mode is not required for servicing. Do not execute.
ALL ERASE
This mode is used for clearing information such as the title memo.
Do not execute if information such as the title memo is not to be
erased.
Procedure:
While pressing the CLEAR button with the power OFF, press the
1/u button and turn on the power.
The fluorescent display tube displays "ALL ERASE" and all memo-
ries will be cleared.
AGING MODE
• Mode which repeatedly changes and plays back discs automati-
cally in the unit.
• It will repeat aging as long as no errors occur.
• If an error occurs during aging, it will stop all servos, motors, etc.
instantaneously, display the error number, and stop operations.
However, the stopping conditions differ according to whether the
unit is equipped with the "self-protection function during errors"
described later.
The function serves to maintain the state of the unit when errors
occur.
SECTION 4

SERVICE MODE

Power supply state
OFF CLEAR +
ON
GROUP 1 +
ON GROUP 2 +
ON GROUP 3 +
ON
GROUP 4 +
ON GROUP 5 +
ON GROUP 7 +
ON
GROUP 1 +
ON GROUP 2 +
ON GROUP 3 +
ON
GROUP 4 +
ON GROUP 5 +
ON
GROUP 6 +
Sequence of Aging Mode
– 10 –
Button operation
1
OPEN/CLOSE + +100
§
OPEN/CLOSE + +100
§
OPEN/CLOSE + +100
§
OPEN/CLOSE + +100
§
OPEN/CLOSE + +100
§
OPEN/CLOSE + +100
§
+ +100
·
+ +100
·
+ +100
·
+ +100
·
+ +100
·
· + +100
Order of Disc Change
$
1. Disc change
$
2. Load in
$
3. TOC read
$
4. Access of last track
$
5. 3 second playback
$
6. Access of first track
$
7. 3 second playback
$
8. Load out
$
9. FRONT COVER open
$
10. FRONT COVER close
$
Remarks
Note 1
Used in adjustment
Note 1
Note 1
(1 cycle takes 3 minutes)
$
1. No. 60
$
2. No. 240
$
3. No. 180
$
4. No. 300
$
5. No. 120
$