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NEC NL3224BC35-20 Replacement Manual

Tft color lcd module, lamp holder set.
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LAMP HOLDER SET REPLACEMENT MANUAL
This manual applies replacement of lamp holder set.
Precautions to be observed by the customers
NEC LCD Technologies, Ltd.(hereinafter called "NEC") recommends that the customer returns the LCD
module through the original purchase path to NEC, when replacement of the lamp holder is required.
Customer should consider the followings before replacing the lamp holder.
(1) This work can cause a lowering of the quality (performance). Even if the replacement work is performed
in accordance with this manual, NEC is unable to guarantee the lowering of the quality, which is caused
by customer's replacement work.
(2) Replacement of the lamp holder involves the handling of high voltage circuits. If replacement was done
incorrectly, the LCD module could present a shock, fire or other hazard, both during and after the
replacement work.
Customer's replacing the lamp holder do so at their own risk. NEC will not assume any liability for the LCD
module, and will not warrant any LCD module, which have been modified by the customer, including
replacement of the lamp holder, even when the attached procedure is used. If it is necessary to return the
LCD module to NEC after an attempted repair, NEC will charge the cost of the repairs to the customer.
Document Number: DOD-PD-1261 (2nd edition)
Published data: December 2005 CP (N)
TFT COLOR LCD MODULE
NL3224BC35-20/22
(2nd edition)
1. PRECAUTIONS.....................................................2
1.1 MEANING OF CAUTION SIGNS .................2
1.2 CAUTIONS......................................................2
1.3 ATTENTIONS .................................................3
2. REPLACEMENT PROCEDURE ..........................4
2.1 PREPARATION ..............................................4
2.3 REPLACEMENT.............................................5
1
Contents
©
NEC LCD Technologies, Ltd.
2005 All rights reserved.

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Table of Contents

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   Summary of Contents for NEC NL3224BC35-20

  • Page 1: Table Of Contents

    LCD module could present a shock, fire or other hazard, both during and after the replacement work. Customer's replacing the lamp holder do so at their own risk. NEC will not assume any liability for the LCD module, and will not warrant any LCD module, which have been modified by the customer, including replacement of the lamp holder, even when the attached procedure is used.
  • Page 2: Precautions

    (6) The fluorescent lamp in the LCD module may be damaged in some cases. Take care not to injure yourself while treating the lamp. If the lamp is damaged inside, quality problems may occur, such as un-even brightness by pieces of broken glass left inside. In this case return it to NEC for repair. DOD-PD-1261 (2nd edition)
  • Page 3: Attentions

    1.3 ATTENTIONS (1) Do not press or rub on the sensitive display surface. If customers clean on the panel surface, NEC recommends using the cloth with ethanolic liquid such as screen cleaner for LCD. (2) When handling the LCD module, take the measures of electrostatic discharge with such as earth band, ionic shower and so on, because the LCD module may be damaged by electrostatic.
  • Page 4: Replacement Procedure

    (3) Workbench which is covered with conductive mat (workbench equipped to be prevent static charges can be used) (4) Radio pliers, tweezers (5) Replacing parts LCD Module Lamp holder set NL3224BC35-20/22 55LHS11 2.2 REGARDING THE LAMP HOLDER SET (1) One set consists of two holders. DOD-PD-1261 (2nd edition)
  • Page 5: Replacement

    2.3 REPLACEMENT Refer to the Fig.1 and Fig.2. (1) Put on the fingerstalls and attach the grounding band. (2) Turn the ionizer switch on. (3) The LCD module should be kept turned off, and wait for a while until the backlight get cool down enough.
  • Page 6 LCD module Holder insert area Holder insert area Lamp Cable Lamp Cable Lamp Connector Lamp Connector Fig.1 LCD module Lamp Holder Fig.2 Around the Lamp Holder DOD-PD-1261 (2nd edition)

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Nl3224bc35-22

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