Sony HCD-GN100D Service Manual page 20

HCD-GN90D/GN100D
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[DVD PROGRESSIVE]
• This mode let you change the video signal format from PRO-
GRESSIVE format to INTERLACE format if you accidentally
change the COMPONENT OUT settings in DVD SETUP
MENU to "PROGRESSIVE" and your TV cannot accept Pro-
gressive signal.
Procedure:
1. During DVD function, press
button simultaneously.
[DVD SERVICE MODE]
• This mode let you make diagnosis and adjustment easily by us-
ing the remote commander and TV. The instructions, diagnostic
results, etc. are given on the on-screen display (OSD).
Procedure to enter to DVD Service Mode:
1. Press button to turn the set ON.
?/1
2. Select DVD function.
button and [OPEN/CLOSE] button
3. Press down
x
simultaneously and then turn the [VOLUME] knob clockwise.
4. The message "SERVICE IN" will be displayed on the
fluorescent indicator tube and the Test Mode Menu is displayed
on the on-screen display on the TV. The model name and revision
number is displayed at the bottom of the on-screen display.
Test Mode Menu
0. Syscon Diagnosis
1. Drive Auto Adjustment
TE 2. Drive Manual Operation
L 13942296513
3. Mecha Aging
4. Emergency History
5. Mecha Error History
6. Version Information
7. Video Level Adjustment
Model :MHC-GNxxx xx
Revision :x.xx
5. To execute each function, press its number by using numeric
button on the remote commander.
6. To release from this mode, press
OFF.
0. Syscon Diagnosis
The same contents as board detail check by serial interface can be
checked from the remote commander operation. On the Test Mode
Menu screen, press [10/0] button on the remote commander and the
following Check Menu will be displayed.
### Syscon Diagnosis ###
Check Menu
0. Quit
1. All
2. Version
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3. EEPROM
4. GPIO
5. SD Bus
6. Video
.
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button and [DOLBY PL II]
x
Exit: POWER Key
button to turn the set
?/1
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0-0 Quit
Quit the Syscon Diagnosis and return to the Test Mode Menu.
0-1 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.
### 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 the
next item, or press the
. PREV
Q Q again.
3 6 7 1 3 1 5
To quit the diagnosis and return to Check Menu screen, press the
[RETURN] button on the remote commander to display Check Menu.
• Error occurred
If an error occurred, the diagnosis is suspended and the error is
displayed. Press the [RETURN] button to quit the diagnosis, or press
the . button to repeat the same check where an error
PREV
occurred, or press the
NEXT >
the item next to faulty item.
• General Description of Checking Method
Selecting 2 and subsequent items call the submenu screen of each
item. And selecting 2 and subsequent items execute respective menus
and outputs the results.
For the contents of each submenu, see "Check Items List" as
below.
Check Items List:
0-2. Version
0-2-1. All
0-2-2. Revision
0-2-3. ROM Check Sum
0-2-4. Model Type
0-2-5. Region
0-3. EEPROM Check
0-3-1. Sampling Check
0-3-2. Detail Check
0-4. GP I/O Check
0-5. SD Bus Check
0-6. Video Check
co
0-2. Version
.
0-2-2. Revision
The revision number of ROM (IC206) that the program for the
DVD system processor (IC207) is stored.
9 4 2 8
button to go to the
NEXT >
button to repeat the same operation
0 5 8 2 9 9 4 2 8
button to continue the check from
m
9 9
9 9