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Document Number: DOD-PD-1261

 

(2nd edition) 

Published data: December 2005 CP (N) 
 

©

 

NEC LCD Technologies, Ltd. 

2005 All rights reserved. 

 

 

 

 

 

 

 

 
 

 
 

 

TFT COLOR LCD MODULE 

NL3224BC35-20/22 

 

 
 

LAMP HOLDER SET REPLACEMENT MANUAL 

(2nd edition) 

 

This manual applies replacement of lamp holder set. 

 
 

 

Contents 

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

 

2.2 REGARDING THE LAMP HOLDER SET ....4

 

2.3 REPLACEMENT.............................................5

 

3. DISPOSAL OF THE LAMP HOLDER .................5

 

 

 
 
 
 
 
 

 

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. 

Summary of Contents for NL3224BC35-20

Page 1: ...r 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 ...

Page 2: ...lacement work that the power is turned OFF 2 Be sure to wait some time after turning power OFF before starting replacement work There is a danger of an electric shock because the inverter is charged at a high voltage after working 3 Be sure to wait some time after turning power OFF before starting replacement work There is a danger of burn injury because the lamp holder and high voltage section of...

Page 3: ...ng rubber to avoid the damage for high voltage side of the lamp 5 Properly connect the adaptable plug backlight side to socket inverter side without incomplete connection After connecting be careful not to hook the lamp cables because incomplete connection may occur by hooking the lamp cables This incomplete connection may cause abnormal operation of high voltage circuit 6 Do not hook nor pull cab...

Page 4: ...Finger stalls glove 2 Grounding band earth band 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 ...

Page 5: ...owly gently and in a straight line pull out the lamp holder in the direction of the arrow B in figure 2 If the lamp was broken inside of backlight lamp carefully pull out the lamp holder If pieces of glass remain inside the enclosure carefully remove them 8 Slowly gently and in a straight line push in the lamp holder in the direction of the arrow C and lock portion A in figure 2 9 Replace the lamp...

Page 6: ...DOD PD 1261 2nd edition 6 B C Lamp Holder A Fig 2 Around the Lamp Holder Lamp Connector Fig 1 LCD module Lamp Connector Lamp Cable Lamp Cable Holder insert area Holder insert area LCD module ...

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