Test Mode; General Description; Starting Test Mode; Syscon Diagnosis - Sony DVP-F25 Service Manual

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 [TOP MENU], [CLEAR], [POWER] keys on the remote
commander in this order with the power of main unit in OFF sta-
tus, and the Test Mode starts, then "DIAG START" will be dis-
played 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 concern-
ing 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. Emargency History
5. Version Information
6. Video Level Adjustment
Exit: Power Key
_
Model : DPX-16xxxx
Revision : x.xxx 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
SYSTEM 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
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SECTION 6

TEST MODE

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 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 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 = 2005
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 > key to go to the next item, or
. key to repeat the same check again.
DVP-F25