Test Mode; General Description; Starting Test Mode; Syscon Diagnosis - Sony DVP-CX850D Service Manual

6-1. GENERAL DESCRIPTION

The Test Mode allows you to make diagnosis and adjustment easily
using the remote commander and monitor TV. The instructions,
diagnostic results, etc. are given on the on-screen display (OSD).

6-2. STARTING TEST MODE

Press TITLE , CLEAR , ?/1 buttons on the remote commander
in this order with the power of main unit in OFF status, and the Test
Mode starts, then the menu shown below will be displayed on the
TV screen. At the bottom of menu screen, the model name and
revision number are displayed.
To execute each function, select the desired menu and press its
number on the remote commander.
To exit from the Test Mode, press the POWER button.
Test Mode Menu

0. Syscon Diagnosis

1. Drive Auto Adjustment
2. Drive Manual Operation
3. Mecha Aging
4. Emergency History
5. Version Information
6. Video Level Adjustment
Exit: Power Key
_
Mode :DPX1180UC
Revision:x.xxx
6-3. SYSCON DIAGNOSIS
The same contents as board detail check by serial interface can be
checked from the remote commander.
On the Test Mode Menu screen, press - key on the remote
commander, and the following check menu will be displayed.
### Syscon Diagnosis ###
@ Check Menu
0. Quit
1. All
2. Version
3. Peripheral
4. Servo
5. Supply
6. AV Decoder
7. Video
8. Audio
_
0. Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu.
1. All
All items continuous check
This menu checks all diagnostic items continuously. Normally, all
items are checked successively one after another automatically
unless an error is found, but at a certain item that requires judgment
through a visual check to the result, the following screen is displayed
for the key entry.
SECTION 6

TEST MODE

### Syscon Diagnosis ###
Diag All Check
No.2 Version
2-2. Revision
ROM Revision = xxxx
Press NEXT Key to Continue
Press PREV Key to Repeat
_
Following the message, press NEXT key to go to the next item, or
PREV key to repeat the same check again. To quit the diagnosis
and return to the Check Menu screen, press STOP or ENTER
key. If an error occurred, the diagnosis is suspended and the error
code is displayed as shown below.
### Syscon Diagnosis ###
3-3. EEPROM Check
Error 03: EEPROM Write/Reed N
Address : 00000001
Write Data : 2492
Read Data : 2490
Press NEXT Key to Continue
Press PREV Key to Repeat
_
Press STOP key to quit the diagnosis, or PREV key to repeat the
same item where an error occurred, or NEXT key to continue the
check from the item next to faulty item.
Selecting 2 and subsequent items calls the submenu screen of each
item.
For example, if "5. Supply" is selected, the following submenu will
be displayed.
### Syscon Diagnosis ###
0. Quit
1. All
2. ARP Register Check
3. ARP to RAM Data Bus
4. ARP to RAM Address Bus
5. ARP RAM Check
_
0. Quit
Quit the submenu and return to the main menu.
1. All
All submenu items continuous check
This menu checks 2 and subsequent items successively. At the item
where visual check is required for judgment or an error occurred,
the checking is suspended and the message is output for key entry.
Normally, all items are checked successively one after another
automatically unless an error is found.
6-1
DVP-CX850D
Check Menu
No.5 Supply