76232103 datasheet(11/34 Pages) TOSHIBA

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LIGHT ENGINE REPLACEMENT

Cautions when replacing LIGHT ENGINE

LIGHT ENGINE UNIT:

A271 : LV-672 TB 0B ; 52HM85, LV-672 TB 0D ; 62HM85

and SK09.)

LIGHT ENGINE is a heart of the TV and emits high heat.

Make sure to replace it after turning off the TV and wait

for sufficient cool down. (More than one hour is recom-

mended.)

Do not impact during replacement; otherwise, some

parts may be damaged.

Do not touch optical lens. Adhesion of dirt may deterio-

rate its performance.

Do not loosen any screw other than those to be removed

for adjustment or replacement.

LIGHT ENGINE emits ultraviolet rays when the TV is

ON. Make sure to be careful.

Read DMD bias value described in alphabet from the

data bar code. In service mode, DMDB value is con-

verted and fixed by the following table.

Refer to Service Mode for adjusting the service mode.

DMDB

B00

C01

D02

E03

F04

DMD value in bar

code

Adjusted

value

(Hex)

1-2. Adjustment is made from service mode. The adjusting

items consist of CWDL, CWDH and DMDB.

When CW delay number of the data bar code is 0450:

Double 45.0 to form hexadecimal number (HEX).

The adjusted value becomes “5A” for CWDL and “00”

for CWDH.

If hexadecimal number forms 3 or 4 digits, the latter 2

digits indicate CWDL while the first 2 digits indicate

CWDH.

(For 3 digits, CWDH=0*)

Note:

For converting decimal number to hexadecimal num-

ber, see the conversion table on the next page.

CWDL

CWDH

0450 indicates

450

45.0

45.0 x 2=90

5A (hexadecimal)

Replacement of Light Engine Unit

1-1. When Light Engine Unit is replaced with a new one,

adjustment is required. Adjusted values are described

in bar code, and the values of bar code must be con-

ve r ted to the adjusted values for the setup.

There are 2 types of bar code.

Serial bar code

Ex.

52A000A111111

Data bar code (CW: color wheel)

Ex.

A000000B1111

CWdelay number: 4digits

Inch size

Substrate serial numbers

Serial numbers

DMD bias value

(Including with E998Z, SK01 to SK04, SK06, SK08

Data bar code

Serial bar code

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