Read Sony DVP-CX850D Service Manual online
— 6 —
SELF-DIAGNOSIS FUNCTION
1. FRONT BOARD TEST MODE
The test mode can check the following functions.
1.
Button function
2.
Remote commander signal reception function
3.
System controller ´ IF controller serial communication function
4.
Direct search dial function
5.
Click shuttle function
6.
FL display tube illumination check
Grid check
Anode check
Anode check
7.
LED control function
8.
Key board control function
2. HOW TO ENTER THE TEST MODE
While pressing the [RETURN] and [STOP] or the [TIME/TEXT] and [EDIT] buttons of the DVP-CX850D at the same time in the standby
mode, press the [SET UP] button of the remote commander to enter the test mode.
mode, press the [SET UP] button of the remote commander to enter the test mode.
When the DVP-CX850D enters the test mode, the automatic display sequence of the FL display tubes starts as follows.
1.
All segments of the LED and the FL display tube turn on for about five seconds.
Note:
The [DIRECT SEARCH] LED and the [DISC CHANGE] LED turn on alternatingly while all FL display tubes turn on.
2.
Prototype model name is displayed.
As to the display indication of the FL display tubes, refer to “9. FLD AUTO TEST OPERATION”.
3.
Date of the last update of the program is displayed.
Example: 990604
4.
The message [GRID TEST] appears. Then the odd number grids and the even number grids flash alternately. (Three times)
5.
The message [ANODE TEST] appears. Then the odd number anodes and the even number anodes flash alternately. (Three times)
6.
Returns to step 1 “All segments of the LED and the FL display tube turn on for about five seconds.”
Steps 1 through 6 are repeated.
3. HOW TO EXIT THE TEST MODE
Press the [POWER] button of the DVP-CX850D and the remote commander. The FL display tube turns off and the red POWER-LED only
turns on to return to the standby mode as long the serial communication between the system controller and the IF controller works correctly.
While pressing the [STOP] button, press the [POWER] button to return forcibly to the standby mode.
turns on to return to the standby mode as long the serial communication between the system controller and the IF controller works correctly.
While pressing the [STOP] button, press the [POWER] button to return forcibly to the standby mode.
Mass production model name
DVP-CX850D
Type
200 DISK-DD
Name on display
DPX-1180
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