Hughes JVC Projector G1500m Unstructions Manual

49
ENGLISH
2Loosen the lamp-unit screws, raise
the handle, and pull out the lamp
unit.
Loosen the two screws with a flat-end screwdriver.
Screw
Lamp unit
Handle
Lamp unit
Handle
Screw
Lamp-replacement
opening cover
Be careful not to
damage the claw.
3Insert the new lamp unit fully
inside and fasten the screws.
Fasten the two screws with a flat-end screwdriver.
CAUTION
¥ Do not touch the glass surface of the light-source lamp
directly with your hand as well as staining it. If you touch
with a bare hand,...

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Replacing the Light-source Lamp (Cont.)
Resetting the Lamp Use Time
After replacing with a new light-source lamp, reset the counter inside the projector. This works to reset the life calculation of the
light-source lamp, allowing the used time of the new light-source lamp to be accumulated.
1Turn on the MAIN POWER switch
to go into stand-by mode.
¥ON [ y ]:The main power turns ON and the STAND BY
indicator lights.
2Press and hold down the ÒVIDEOÓ,
ÒSETTINGÓ and ÒQUICK ALIGN. +
3Ó at the same time for...

51
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Cleaning and Replacing the Filter
Clean the filter periodically. If the filter is heavily stained and does not get clean, or if it is damag ed, replace the filter
with a new filter (part No.: LC30208). Otherwise, dirt may get inside and appear on the screen, possibly preventing you
from enjoying the video image fully. If dirt gets inside or if you need information about the filter, consult a authorized
dealer where you have purchased the projector or Service center.
1Turn off the MAIN POWER...

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Troubleshooting
Solutions to common problems related to your projector are described here. If none of the solutions presented here solves the
problem, unplug the projector and consult a authorized dealer or service center.
Symptom Probable cause Corrective action Page
Power is not supplied.
Light is not emitted,
or light level is low.
With power on,
operation starts but
stops in a few minutes.
Video image does not
appear, or audio
sound does not occur.
Video image dims.
Color is poor or
unstable.
¥ Is...

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ENGLISH
* This projector is equipped with a microcomputer that may operate abnormally due to interference from external components.
If this happens, turn off the main power and disconnect the power cord from the wall AC outlet. Then reconnect the power cord
to AC outlet and turn on the main power again.
(For the turning on and off the power, see pages 25 to 26.)
Symptom Probable cause Corrective action Page
The upper part of the
video image bows or
distorts.
Video imag e and
audio sound suddenly
go...

54
Specifications
Optical mechanism system
¥ Projection method 3D-ILA device, 1 lens, 3 primary color optical shutter method
¥ D-ILA device 0.9 measured diagonally (1365 ´1024 pixels) ´ 3  (Total number of pixels : 4,193,280)
¥ Projecting lens 1.5 :1, short focal-distance lens (with a manual shift function)
¥ Screen size 60 to 150 [recommended] measured diagonally (*with aspect ratio : 4 : 3)
¥ Light-source lamp 420 W xenon lamp
Electrical system
¥ Color system NTSC, NTSC4.43, PAL, SECAM  (* Automatic...

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Horizontal sync/composite sync signal (H/Cs)
H : 1 to 5V(p-p), high impedance (positive/negative polarity)
Cs : 1 to 5V(p-p), high impedance (positive/negative polarity)
Vertical sync signal (V)
V : 1 to 5V(p-p), high impedance (positive/negative polarity)
* Some connected devices may not correspond to composite sync (Cs) or G on sync signal.
¥ AUDIO 1-line, stereo mini-jack ´ 1
(For COMPUTER IN-2) 0.5Vrms, high impedance
[COMPUTER OUT  (COMPUTER OUTPUT)]
¥ COMPUTER OUT 1-line, D-sub 3-row...

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Specifications (Cont.)
Outside dimensions
nTo p
nFrontnSide
STAND BY
LAMP
TEMP
EMERGENCY
VIDEO
COMPUTER
SETTING
QUICK
ALIGN
-+
16-3/4 (425)*1
5-1/4 (133)*1
(f107)
13-
3/8 (339)
16-
5/8 (421)
8-1/8 (205)*1
6-5/8 (168)16-
3/4 (425)*1
14-1/4 (361)16-
5/8 (421)
9-
1/8 (231)
2-
1/4 (55.5)
7-3/8 (187)
7-
5/8 (193) 1-
5/8
(41)10 (253)
Unit: Inch (mm)
*1: Protrusion excluded
f4-1/4
DTV-format signals
* The following are DTV-format signals that can be input.
DTV-Formats 480i 480p 720p 1080i
Signal Standard...

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ENGLISH
nRS-232C terminal
nCOMPUTER IN-1 (PC) / COMPUTER OUT Terminal
Pin number Signal name
1 N/C
2RD
3TD
4 N/C
5 GND
Pin number Signal name
6 N/C
7 N/C
8 N/C
9 N/C
Pin number Signal name
1Red
2 Green
3 Blue
4 N/C
5 N/C
6 GND (Red)
7 GND (Green)
8 GND (Blue)
Pin number Signal name
9 N/C
10 GND (SYNC)
11 GND
12 N/C
13 H.SYNC
14 V.SYNC
15 N/C
Specifications (Cont.)
2
3
4
5 6
71
8
9
1
23 4 5
6 78 9 10
11 12 13 14 15
Pin assignment (Specifications for terminals)
nY/C terminal
Pin number Signal name
1 GND...

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G1500M  p.46-5999.8.25, 1:13 PM 58