NEC LT20 Support Question

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Question posted by awlittle on July 3rd, 2014

Lamp Error

I'm replacing the lamp in a LT20 projector. Both new lamps and the old one are all getting a lamp red light indicator after the fan cycles on and off several times. Any thoughts on what might be inhibiting operation?

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Answer #1: Posted by waelsaidani1 on July 4th, 2014 12:05 AM

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waelsaidani1

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According to a quick search, you may have run out of hours on the lamp. Now that doesn't necessarily mean the lamp is dead, it could mean you just got to the number of hours the lamp is rated for.

From what I found, you may be able to reset the lamp timer, with one of the following methods. You may still want to replace the lamp, or at least get a backup one.

Press and hold the help button on the remote for 10 seconds.

Press and hold the exit button on the remote for 10 seconds.

Press and hold Power and Exit on the remote for 10 seconds.

Related NEC LT20 Manual Pages

NP115 : RS232 codes- Projectors - Page 1

... or another device. Projector Control NEC projectors make use of control commands that control the functions of Commands 5. Control Commands for NEC Projector (Basic) Rev 02.03.11a Copyright (C) NEC Display Solutions, Ltd. 2002-2010 Updated on February 3, 2011 This file contains information about NEC projector control commands. Connection Method 3. Table of Response Error Codes 1.

NP115 : RS232 codes- Projectors - Page 10

...LAMP INFORMATION REQUEST 2 037-4. LAMP MODE SET 046. REMOTE KEY CODE 060. GAIN PARAMETER REQUEST 2 077. RUNNING STATUS REQUEST 078-3. MIRROR COVER STATUS REQUEST 079. PIP/SIDE BY SIDE REQUEST 098-196. PROJECTOR... MUTE STATUS REQUEST 078-5. POWER ON 016. LAMP INFORMATION REQUEST 4 038. PICTURE MUTE OFF 022. ERROR STATUS REQUEST 015. IMAGE MODE ADJUST 037....

NP115 : RS232 codes- Projectors - Page 12

.../NP500WS/NP600/NP600S, Data portion of the data up to the projector. (*2) Model code: "xxH" inscription This will differ depending on the projector. LT30 : NP4000: NP4001: NP62 : firmware version 1.03 or...See "NAK" of an error. Example: 20H 81H 01H 60H 01H 00H 03H CKS (*4) Response error number This is the value when forwarding a factory. This reflects the "Projector ID" that has been ...

NP115 : RS232 codes- Projectors - Page 13

... 00H 00H 00H C0H Response: At the time of the projector. RUNNING SENSE Function: This command acquires the operation mode of a success Command: 00H 81H 00H 00H 00H 81H Response: At the time of a success 20H 81H 01H xxH 01H DATA01 CKS (*1) (*2) (*3) Data Portion Contents DATA01 Status of operation Bit 7: Power On/Off processing 0 = No...

NP115 : RS232 codes- Projectors - Page 16

... : ON DATA67 On-screen display 00H : No display 01H : Displaying DATA68 Selecting signal processing 00H : No execution (Normal condition) 01H : During execution DATA69 Status of operation 00H : Idling 04H : Power On 05H : Cooling 06H : Idling (Error occurrence) Other than above: (nondisclosure) Internal use of code during a state transition period DATA70 .. 71...

NP115 : RS232 codes- Projectors - Page 19

...command acquires the error information occurring with the projector. DATA12 CKS (*1) (*2) (*3) Data Portion Contents The various bits are normal is "0" and error is "1". * "None" is "0" fixation. DATA01 Error Status (1) bit0 : Lamp cover error bit1 : Temperature error(Bimetal) bit2 : None bit3 : None bit4 : Fan error bit5 : Power error bit6 : Lamp(or Lamp1) error bit7 : Lamp(or Lamp1) has...

NP115 : RS232 codes- Projectors - Page 20

... switches on processing. 016. Command: 02H 01H 00H 00H 00H 03H Response: At the time of a success 22H 01H 01H xxH 00H CKS (*1) (*2) (*3) Response: At the time of a failure A2H 01H 01H xxH 02H DATA01 DATA02 CKS (*1) (*2) (*4) (*3) Supplement: The projector doesn't accept the other command during power off the main power of the...

NP115 : RS232 codes- Projectors - Page 27

... Meter (second) (!) DATA87 .. 90 : Filter Usage (second) DATA91 .. 94 : Panel Usage (second) DATA95 .. 98 : Projector Usage (second) Response: At the time of projector. Lamp Timer Acquisition Examples DATA83 DATA84 DATA85 DATA86 : Lamp Timer 00H 00H 00H 00H : Total 0 seconds C0H 65H 52H 00H : Total 5400000 seconds/3600 = 1500 hours 00H E4H 57H 00H : Total 5760000...

NP115 : RS232 codes- Projectors - Page 29

... terms of Eco mode values) 10H : Remaining time until inhibition of lamp usage (in terms of specified values) 11H : Remaining time until inhibition of lamp usage (in terms of Normal mode values) 12H : Remaining time until inhibition of a success 23H 96H 01H xxH 06H DATA01 .. LAMP INFORMATION REQUEST 3 Function: This command acquires the information on the projector lamp in Eco mode.

NP115 : RS232 codes- Projectors - Page 30

... to appear (in terms of Eco mode values) 10H : Remaining time until inhibition of lamp usage (in terms of specified values) 11H : Remaining time until inhibition of lamp usage (in terms of Normal mode values) 12H : Remaining time until inhibition of Eco mode values) It is displayed in the projector's menu. (!!!) NP4000/4001, NP4100/4100W : This function is the...

NP115 : RS232 codes- Projectors - Page 32

... 07H fixed DATA02 Setting Value 00H : Normal 01H : Eco Response: At the time of a success 23H B1H 01H xxH 02H DATA01 DATA02 CKS (*1) (*2) (*3) Data Portion Contents DATA01 07H fixed DATA02 Results 00H : Normal 01H : Error Response: At the time of projector. WXGA MODE SETTING REQUEST Function: This command acquires the setting of the WXGA...

NP115 : RS232 codes- Projectors - Page 52

PROJECTOR INFORMATION REQUEST Function: This command acquires basic operation states of code during a state transition period DATA03 Indicate ...Projector Processing Status 00H : Idle 04H : Power On 05H : Cooling 06H : Idle(Error Standby) Other : Not Support Other than above : (nondisclosure) Internal use of projector. Command: 00H BFH 00H 00H 01H 02H C2H Response: At the time...

LT20 spec sheet - Page 1

Vertical keystone correction enables a square image every time. ° Perfect package. Compact carrying case supplied. NEC LT Series Projectors Footprint of a DVD case 2.2 lbs up to 3000 hour lamp life High resolution XGA images High contrast at 2000:1 1,500 ANSI Lumens NEC reliability LT20 A projector at home on . ° Lightweight. At 2.2lbs you to be ready in...

LT20 spec sheet - Page 2

...projector and computer. The lamp when used under normal operating conditions is a registered trademark of their respective owners. Product/Accessories Order Code LT20E LT20LP LEATHERROLLER LEATHERCASE LT50ROLLLER LTBPK Shipping case Description 2.2 pound, 1500 ANSI, XGA Projector Replacement lamp...NEC LT20 7.8" (200 mm) 2.9" (56 mm) lamp Optical Panel Resolution Light Output Lamp Lamp Life...

LT20 UM - Page 2

...DONE BY QUALIFIED NEC SERVICE PERSONNEL. Record it is located on the bottom of your NEC LT20 Projector and keep the manual handy for Canada only) This Class B digital apparatus meets all ...of this unit has been provided. This symbol warns the user that important information concerning the operation and maintenance of California to avoid problems. WARNING: TO PREVENT FIRE OR SHOCK, DO NOT...

LT20 UM - Page 4

... can cause unpredictable outcome such as magnifying glass out of the light path of space between your projector, disconnect it immediately and have the object removed by a qualified NEC service personnel. 3. The projector is extensive, therefore any objects that vents are unobstructed to operate on . iii Important Information Fire and Shock Precautions 1. Do not...

LT20 UM - Page 16

... ™ When the "STATUS" indicator lights solid red, it has cooled down . Installation Powering Off the Projector 1. When the light stops flashing and turns orange, the projector has entered standby mode. English ... 12 Warning Indicator ™ When the "LAMP" indicator lights solid red, the projector will disappear after it indicates the projector has been overheated. Press...

LT20 UM - Page 31

... you will be shown when the system tempera- Steady light => No light => Appendices Problem: The image is too high. " The cooling fan has stopped." To replace the lamp, follow the procedures in the on your DVD player, please select 4:3 aspect ratio in the "Replacing the Lamp". Please replace the lamp." The projector automatically detects 16:9 DVD and adjusts the aspect...

LT20 UM - Page 39

...REPLACEMENT PRODUCTS MAY BE NEW OR RECONDITIONED PRODUCTS, AND REPLACEMENT PARTS MAY BE NEW OR SERVICEABLE USED PARTS. Damage, deterioration or malfunction resulting from: a. Removal or installation of the product beyond normal operating conditions. Use of the product. Normal operating...CAN GET ...lamp light output over time. 4. LIMITED WARRANTY (USA and Canada only) NEC SOLUTIONS' PROJECTOR...

LT20 UM - Page 40

... two conditions. (1) This device may cause undesired operation. No.: NEC Solutions (America), Inc. 1250 N. Arlington Heights Road Itasca, Illinois 60143 (630) 467-5000 Type of FCC Rules. DECLARATION OF CONFORMITY This device complies with Part 15 of Product: Projector Equipment Classification: Class B Peripheral Model: LT20 We hereby declare that may not cause harmful...