Sony dvpnc 650 v service manual

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6-1 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 [0] key on the remote com- mander, 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 judg- ment through a visual check to the result, the following screen is displayed for the key entry. ### Syscon Diagnosis ### Diag All Check No. 2 Version 2-3. ROM Check Sum Check Sum = xxxx Press NEXT Key to Continue Press PREV Key to Repeat _ For the ROM Check, the check sum calculated by the Syscon is output, and therefore you must compare it with the specified value for confirmation. Following the message, press [NEXT] key to go to the next item, or [PREV] key to repeat the same check again. To quit the diagno- sis 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. 6-1. GENERAL DESCRIPTION The Test Mode allows you to make diagnosis and adjustment eas- ily 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 the [TITLE] , [CLEAR] , [POWER] keys on the remote com- mander in this order with the power of main unit in OFF status, and the Test Mode starts, then DIAG START will be displayed on the fluorescent display tube and 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. Last Off at the lower right of screen indicates the information code concerning the last power off. 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] key. 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 _ Model : DPX-145xxx Revision : 1.xxxx Last Off: xx Power Off Information Code List 00 : Primary Power Off 01 : Power Off Request from SYSTEM CONTROL 02 : Power Off by Emergency Power Off Command from SYS- TEM CONTROL (if information is sent from SYSTEM CONTROL) 03 : IF CON Judged that SYSTEM CONTROL is Faulty 04 : Power Off from Diagnosis Mode of IF CON 05 : Forced Power Off by the User 06 : Power Off by Power Supply Voltage Monitor SECTION 6 TEST MODEDVP-NC650V