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7.Lamp error detection
7-1.Feature description

This liquid-crystal colour 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 when 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 six 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).

7-2.Measures

1). Checking with lamp error detection OFF

Enter the adjustment process mode described in the item 3 and start up the unit. If there is a problem with
a lamp or lamp circuit, the lamp will go out. (The power LED is green.)
Then, you can check the operation to see if the lamp and lamp circuit are abnormal.

2). Resetting the lamp error count

After you have finished checking whether the lamp and lamp circuit are abnormal, reset the lamp error
count. If a lamp error is detected five consecutive times, the power cannot be turned on.

      Therefore, move to the “L ERR RESET” line, the fourth line on the first page of the“Display adjustment
      mode”, using the “Cursor '/"” keys. Then, reset the “L ERR RESET” value using the “Cursor Û / û” keys.
      In this case, press the “OK” key to reset it to "0".

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

              

 

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1st level

Page

Setting range

Initial value

Remarks

Containts

1

VLSBIAS

0 ~ 255

150

GRAYLEVEL

0 ~ 255

200

BTM ADJ

00 ~ FF

00

BTM FINEADJ

FE ~ 02

00

BTM ADJ2

00 ~ FF

00

BTM FINE2

FE ~ 02

00

COMBIAS

0 ~ 255

190

L ERR RESET

Zero Clear

0

Varies depending on the

LCD

1

PWM CTRL

0 ~ 7

7

dimmer settingb value.

PWM FREQ

0~ 4095

0695

PWM DUTY

0~ 4095

0009

PHASE DIF

0 ~ 255

011

OSC FREQ

0 ~ 255

0136

OSC DUTY

0 ~ 255

0068

PWM LOW

0 ~ 255

000

Varies depending on

FORCE

OFF

the AVC connection

REV DISP

OFF

or receiving signal.

2

MODE

50HZ/60HZ/PC

PC

QS SW

Off/ON

OFF

QS D1

0 ~ 255

086

Varies depending on

QS D2

0 ~ 255

102

 the menu setting.

QS D3

0 ~ 255

113

QS D4

0 ~ 255

125

QS D5

0 ~ 255

137

QS D6

0 ~ 255

147

QS D7

0 ~ 255

160

Varies in the step

3

OPC OFF

0 ~ 32

00

mode

STEP MODE

17/33

33

SMOOTH

ON

Varies depending on

OPC04

000 ~ 255

004

the OPC settion

DISPMODE

FULL

condition.

4

CS LEVEL T

0 ~ 255

82

CS LEVEL B

0 ~ 255

82

5

DAC CS

ALL 0

VH0

0 ~ 1023

0519

VH31

0 ~ 1023

0671

VH63

0 ~ 1023

0717

VH95

0 ~ 1023

0761

VH127

0 ~ 1023

0775

VH159

0 ~ 1023

0802

VH191

0 ~ 1023

0834

VH247

0 ~ 1023

0978

6

DAC CS   ALL 0

ALL 0

VL0

0 ~ 1023

0520

VL31

0 ~ 1023

0367

VL63

0 ~ 1023

0318

VL95

0 ~ 1023

0272

VL127

0 ~ 1023

0257

VL159

0 ~ 1023

0231

VL191

0 ~ 1023

0198

VL247

0 ~ 1023

0054

PATTERN

1

PATTERN 1

10 ~ 14

00

PATTERN 2

0 ~ 12

00

PATTERN 3

0 ~ 5

10

PATTERN 4

0 ~ 5

0

PATTERN R

0 ~ 255

255

PATTERN G

0 ~ 255

255

PATTERN B

0 ~ 255

255

PATTERN A

0 ~ 255

000

Process adjustment list (Display Part)