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The adjustment values are set to the optimum conditions at the factory before shipping.  If a value should become
improper or an adjustment is required due to part replacement, make an adjustment according to the following
procedure.

1. Preparation

Note that the unit should be replaced when the receiver IC (IC2206), HDCP KEY ROM (IC2208) CONFIG
ROM (IC2202) or microprocessor (IC2004) is replaced.
Applicable unit: DKEYHC094FE50

2. Adjusting procedure

•

VLS BIAS (15V) voltage adjustment

•

Entering the adjustment process mode 

→

 COM BIAS adjustment 

→

 Background adjustment

3. How to enter the adjustment process mode

(1) When the AVC System is not connected

•

Turn OFF the monitor main power.  Turning ON the monitor main power while pressing the "INPUT" key
and "VOL (–)" key on the top face of the monitor main body together will establish the "Monitor Process"
mode.

(2) When the AVC System is connected

•

Turn OFF the monitor main power.  Turning ON the monitor main power while pressing the "CH (

Ù

)" key

and "VOL (+)" key on the top face of the monitor main body together will establish "Monitor Process"
mode.

In each case of (1) and (2), "<K>" is displayed in the upper left portion of the screen.
Then, pressing any key will bring you to the first page of the "Monitor Adjustment" mode.

~

 To exit the adjustment process mode, turn OFF the main power.

4. Adjustment process mode key operation table

Key
Cursor UP

Cursor DOWN

Cursor RIGHT

Cursor LEFT

ENTER

INPUT
CH (

ù

)

CH (

Ù

)

VOL (+)

VOL (–)

Function 1 (when on the left side of a page)
Moving up by one item or moving to the
previous page (when at the top)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)
Test pattern off

Moving to the next page
Moving down by one item or moving to the next
page (when at the bottom)
Moving down by one item or moving to the next
page (when at the bottom)
Moving to the right by one item or moving to
another page (in the case of the initial page)
Moving to the left by one item or moving to
another page (in the case of the initial page)

Function 2 (when changing a numeric value)
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item

Moving to the left by one item

Executing the item (in the case of W or R
items)
Moving to the next page
Incrementing the adjustment value by one or
executing the item (in the case of W or R items)
Decrementing the adjustment value by one or
executing the item (in the case of W or R items)
Moving to the right by one item

Moving to the left by one item

5. Adjustment

5-1.VLS BIAS (13V) voltage adjustment (R4231)

Connect a digital volt meter to TL4122 (or C4180+) on the LCD Control PWB and make a adjustment with
the R4231 so that the voltage becomes 13.00±0.05V.

5-2.COM BIAS adjustment

Shift to the "COM BIAS" item with the cursor UP/DOWN key and select a numeric value with the cursor
RIGHT/LEFT key.
Changing the numeric value with the cursor UP/DOWN key will make appear the test pattern.  Make an
adjustment so that the flicker near the center of the screen is minimized.

5-3.Background adjustment

Start up the set with the AVC System connected and adjust the background of the monitor.

•

 Procedure

-1) Display the adjustment screen (200-level gray scale on High side, 48-level gray scale on Low side).
-2) Adjust "R OFFSET", "G OFFSET" and "B OFFSET" so that the 200-level gray scale pattern becomes

normative.
Adjust the chromaticity of the High pattern (in the left portion of the screen) so that x = 0.275 and y =
0.273.

-3) Adjust "R GAMMA", "G GAMMA" and "B GAMMA" so that the 48-level gray scale pattern becomes

normative.
Adjust the chromaticity of the Low pattern (in the right portion of the screen) so that x = 0.269 and y
= 0.252.

The above-mentioned adjustments can be made according to the following procedure.

RS232C command table

Command
MSET1001
MOFR

~~~~

MOFG

~~~~

MOFB

~~~~

MGAR

~~~~

MGAG

~~~~

MGAB

~~~~

MINF0000
MINF0001
MINF0002

Function
Used to start the background adjustment.
Used to adjust the value of R OFFSET.
Used to adjust the value of G OFFSET.
Used to adjust the value of B OFFSET.
Used to adjust the value of R GAMMA.
Used to adjust the value of G GAMMA.
Used to adjust the value of B GAMMA.
Used to display the R GAMMA table.
Used to display the B GAMMA table.
Used to display the G GAMMA table.

Remarks
The adjustment ends with a numeric value other than 1001.
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0512 (Initial value: 0255)
Range: 0000 to 0255 (Initial value: 0100)
Range: 0000 to 0255 (Initial value: 0100)
Range: 0000 to 0255 (Initial value: 0100)

(1) Adjusting method using RS-232C

•

Get a personal computer with a COM port (RS-232C) equipped with WINDOWS 95/98/me/2000/xp and
a RS-232C crossing cable

•

Start up the set with the RS-232C cable connected.

•

Start up the terminal software.
(Freeware products available on the Internet can be used.)

•

Make setting as shown below.

Baud rate

: 9600

Data

: 8 bits

Parity

: None

Stop

: 1 bit

Flow control : None

•

If the above setting is made correctly, pressing the "ENTER" key on the PC will make "ERR" appear on
the terminal software.

•

In this state, entering a command shown in the table bellow and pressing the "SET/ENTER" key will allow
you to make an adjustment.

If "OK" is displayed on the terminal software after the "ENTER" key is pressed, the command has been
entered successfully.
If "ERR" is displayed, enter the command again.

Lamp error detection

1. Feature description

This liquid-crystal color TV incorporates a lamp error detection feature (lamp error detection) that automatically
turns OFF the power for safety under abnormal lamp or lamp circuit conditions.
If anything is wrong with the lamp or lamp circuit or the lamp error detection feature is activated for some
reason, the following will result.

1

The power of TV main body is turned OFF about 13 seconds after it is turned ON.  (The power LED on
the front of the TV turns red from green and keeps blinking in red (ON for 250ms and OFF for 1sec).)

2

If 

1

 occurs five times consecutively, it becomes impossible to turn ON the power.  (The power LED

keeps blinking in red (ON for 250ms and OFF for 1sec).)

2. Measures

2-1.Checking with lamp error detection OFF

Disconnect the cable connected to the AVC System  Turn OFF the monitor main power.  Turning ON the
monitor main power while pressing the "INPUT" key and "VOL (–)" key together will establish the "Monitor
Process" mode ("<K>" is displayed).
Then, pressing any key will bring you to the first page of the "Monitor Process" mode.
This allow you to check the lamp and lamp circuit for abnormal conditions.
Check that "L ERR RESET" on the fourth line of the first page of the "Monitor Process" mode is 1 or more.
If it is 1 or more, a lamp error has been detected.

2-2.Reset of lamp error count

After checking the lamp and lamp circuit for abnormal conditions, reset the lamp error count.  Move the
arrow to "L ERR RESET" on the fourth line of the first page of the "Monitor Process" mode with the cursor
UP/DOWN key and select the numeric value of "L ERR RESET" with the cursor RIGHT/LEFT key.  In this
state, press the cursor UP/DOWN key to reset it to "0".

Then perform operation checking and check that the lamp error detection feature is not activated.

First page of monitor process mode

Values specific to each monitor

Resetting to "0"

SERVICE
   GRAYLEVEL
   COMBIAS
   VLSBIAS

→

L ERR RESET

   LCD
   PATTERN
   SOUND AND FAN
   OTHER
     VER M1.

~~  

CEEP4

30AD1E

076
077
064
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