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Model
PT-LX271U PT-LX271E PT-LX271EA PT-LX321U PT-LX321E PT-LX321EA PT-LX351U PT-LX351E PT-LX351EA PT-LW321U PT-LW321E PT-LW321EA PT-LW271U PT-LW271E PT-LW271EA
Pages
92
Size
36.95 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / DLP BASED PROJECTOR
File
pt-lx271u-pt-lx271e-pt-lx271ea-pt-lx321u-pt-lx321e.pdf
Date

Panasonic PT-LX271U / PT-LX271E / PT-LX271EA / PT-LX321U / PT-LX321E / PT-LX321EA / PT-LX351U / PT-LX351E / PT-LX351EA / PT-LW321U / PT-LW321E / PT-LW321EA / PT-LW271U / PT-LW271E / PT-LW271EA Service Manual ▷ View online

PT-LX271/PT-LX321/PT- LX351/PT-LW321/PT-LW271 series
1-1
Chapter 1
Introduction
1-1 Specifications
Specifications
66
 - ENGLISH
Appendix
Specifications
Model No.
PT-LX351
PT-LX321
PT-LX271
PT-LW271
PT-LW321
Power supply
100−240 V AC, 50/60 Hz
Power consumption
100 V - 240 V, 3.2 A-1.3 A, 320 W
100 V - 240 V, 2.6 A-1.05 A, 260 W
Standby power consumption
0.5 W  When [LAN (Standby)]/[VGA Out (Standby)]/[In Standby Mode (Audio)] are all set 
 
l
to [Off].
6.0 W  When one or more among [LAN (Standby)]/[VGA Out (Standby)]/[In Standby Mode 
 
l
(Audio)] is/are set to [On].
DLP panel
Panel  
size
14.0 mm (0.55")
(Aspect ratio 4:3)
16.5 mm (0.65")
(Aspect ratio 16:10)
Display 
method
DLP™ chip × 1, DLP™ system
Pixels
786 432 pixels
(1 024 x 768 dots)
1 024 000 pixels
(1 280 x 800 dots)
Lens
Manual zoom 1.1× (1.95 – 2.15:1 throw ratio), manual 
focus,
F 2.41–2.53,  f=21.8 - 24mm
Manual zoom 1.1× (1.55 – 1.7:1 
throw ratio), manual focus,
F 2.5–2.67,  f=21.8 - 24mm
Luminous lamp
240 W UHM lamp
190 W UHM lamp
Light output *
1
3 500 lm
3 200 lm
2 700 lm
2 700 lm
3 200 lm
Contrast ratio*
1
4 000 : 1 (all white / all black)
For RGB signal input, set [Color Mode] to [Dynamic] and [Lamp Power Mode] to [Normal]
Applicable 
scanning 
frequency *
2
for Video 
signal 
Horizontal 15.75 kHz / 15.63 kHz, Vertical 60 Hz / 50 Hz
for RGB 
signal
Horizontal 15 kHz to 100 kHz, Vertical 24 Hz to 120 Hz
Dot clock frequency: 165 MHz or less
for YP
B
P
R
 
signal
[525i(480i)] 
 
Horizontal 15.75 kHz, Vertical 60 Hz
[625i(576i)] 
 
Horizontal 15.63 kHz, Vertical 50 Hz
[525p(480p)] 
 
Horizontal 31.50 kHz, Vertical 60 Hz
[625p(576p)] 
 
Horizontal 31.25 kHz, Vertical 50 Hz
[750(720)/60p] 
 
Horizontal 45.00 kHz, Vertical 60 Hz
[750(720)/50p] 
 
Horizontal 37.50 kHz, Vertical 50 Hz
[1125(1080)/60i]   
Horizontal 33.75 kHz, Vertical 60 Hz
[1125(1080)/50i]   
Horizontal 28.13 kHz, Vertical 50 Hz
[1125(1080)/24p]   
Horizontal 27.00 kHz, Vertical 24 Hz
[1125(1080)/60p]   
Horizontal 67.50 kHz, Vertical 60 Hz
[1125(1080)/50p]   
Horizontal 56.25 kHz, Vertical 50 Hz
for HDMI 
signal
525i(480i), 625i(576i), 525p(480p), 625p(576p), 750(720)/60p, 750(720)/50p, 
1125(1080)/60i, 1125(1080)/50i, 1125(1080)/24p, 1125(1080)/60p, 1125(1080)/50p
Displayable resolution: VGA to UXGA (non-interlace)
 
l
Dot clock frequency: 25 MHz ~ 162 MHz
 
l
Color system
7 (NTSC, NTSC4.43, PAL, PAL-N, PAL-M, SECAM, PAL60)
Projection size
30"-300" *
3
Screen aspect ratio
4:3
16:10
Projection scheme
Front / Rear / Mount on Ceiling / Floor (Menu setting system)
Speaker
1 (7.1 cm x 4.1 cm)
Maximum usable 
volume output
8 W
Measurement, measuring conditions and method of notation all comply with ISO21118 international 
*1 : 
standards.
For details of video signals that can be projected using this projector, refer to “List of compatible signals”. 
*2 : 
(
pages 64-65)
The value of native aspect ratio (4:3 for PT-LX351, PT-LX321 and PT-LX271; 16:10 for PT-LW321 and 
*3 : 
PT-LW271).
PT-LX271/PT-LX321/PT- LX351/PT-LW321/PT-LW271 series
1-2
Specifications
ENGLISH - 
67
Appendix
Model No.
PT-LX351
PT-LX321
PT-LX271
PT-LW271
PT-LW321
Terminals
COMPUTER 1 
IN /
COMPUTER 2 
IN
2 sets, high-density D-Sub 15p (female) 
[RGB signal] 
     0.7 V [p-p] 75 Ω (When G-SYNC: 1.0 V [p-p] 75 Ω)
     HD/SYNC TTL high impedance, automatic positive/negative polarity compatible
     VD TTL high impedance, automatic positive/negative polarity compatible
     SYNC/HD and VD are not compliant with 3 value composite SYNC
[YP
B
P
R
 signal]   
     Y: 1.0 V [p-p] including synchronization signal, P
B
P
R
: 0.7 V [p-p] 75 Ω
MONITOR OUT
1 set, high-density D-Sub 15p (female)
[RGB signal] 
     0.7 V [p-p] 75 Ω (When G-SYNC: 1.0 V [p-p] 75 Ω)
     HD/SYNC TTL high impedance
     VD TTL high impedance
[YP
B
P
R
 signal]   
     Y: 1.0 V [p-p] including synchronization signal, P
B
P
R
: 0.7 V [p-p] 75 Ω
VIDEO 
1 (Pin jack  1.0 V [p-p] 75 Ω)
HDMI 
1 (HDMI 19 pin, HDCP and Deep color compatible)
AUDIO 1 IN 
2 (M3 stereo mini jack, 0.5 V [rms], input impedance 22 kΩ and more)
AUDIO 2 IN 
VARIABLE
AUDIO OUT
1 (M3 stereo mini jack, stereo monitor output compatible,
0 V [rms] to 2.0 V [rms] valuable, output impedance 2.2 kΩ and less)
SERIAL IN
1 (D-sub 9 pin, RS-232C compliant, for computer control use)
LAN
1 (For RJ-45 network connection: PJLink (class 1) compatible)
Power cable length
1.8 m (70.9 ")
Cabinet
Molded plastic
Dimensions
Width: 288 mm (11.34")
Height: 99.8 mm (3.93") (when adjustable feet shortened)
Depth: 220 mm (8.66")
Weight
Approx.2.5 k
g (5.5 lbs.) *
4
Noise level *
5
When set to 
[Normal] in 
[Lamp power 
mode]: 37 dB
When set to 
[ECO2] in 
[Lamp power 
mode]: 29 dB
When set to 
[Normal] in 
[Lamp power 
mode]: 35 dB
When set to 
[ECO] in [Lamp 
power mode]: 
29 dB
When set to [Normal] in [Lamp power mode]: 34 dB
When set to [ECO] in [Lamp power mode]: 29 dB
Operating environment
Operating environment temperature:
5 °C to 40 °C (For 0 - 2 500 ft), (Elevation: below approx. 750 m); 
5 °C to 35 °C (For 2 500 - 5 000 ft), (Elevation: approx. 750 m - approx.1 500 m); 
5 °C to 30 °C (For 5 000 - 10 000 ft), (Elevation: approx. 1 500 m - approx.3 000 m); 
Operating environment humidity: 20 % to 80 % (no condensation)
Remote 
control
Power supply
DC 3 V (Lithium coin battery) 
Operating 
range
Approx. 8 m (26.25 ft) (when operated directly in front of signal receiver)
Weight
23 ]  (0.81 ozs.) (including battery)
Dimensions
Width : 40.6 mm (1.60"), Length : 86.5 mm (3.41"), Height : 7.2 mm (0.28")
This is an average value. It may differ depending on individual product.
*4 : 
Measurement, measuring conditions and method of notation all comply with ISO21118 international 
*5 : 
standards.
The part numbers of accessories and separately sold components are subject to change without notice.
 
l
PT-LX271/PT-LX321/PT- LX351/PT-LW321/PT-LW271 series
1-3
Appendices
64
 - ENGLISH
Appendix
List of compatible signals
The following table specifies the types of signals compatible with the projectors.
Format :   V = VIDEO, R = RGB, Y = YP
B
P
R
, H = HDMI
Mode
Display 
resolution *
1
 
(dots)
Scanning 
frequency
Dot clock 
frequency 
(MHz)
Format
Plug and play *
3
H (kHz) V (Hz)
COMPUTER 1/ 
COMPUTER 2
HDMI
NTSC/NTSC4.43/ 
PAL-M/PAL60
-
15.75
59.9
-
V
-
-
PAL/PAL-N/ 
SECAM
-
15.63
50.0
-
V
-
-
525i (480i)
720 x 480i
15.73
59.9
13.50
Y
-
-
720(1 440) x 480i 
(*2)
15.73
59.9
27.00
H
-
o
625i (576i)
720 x 576i
15.63
50.0
13.50
Y
-
-
720(1 440) x 576i 
(*2)
15.63
50.0
27.00
H
-
o
525p (480p)
720 x 483
31.47
59.9
27.00
Y/H
-
o
625p (576p)
720 x 576
31.25
50.0
27.00
Y/H
-
o
750 (720)/60p
1 280 x 720
45.00
60.0
74.25
Y/H
-
o
750 (720)/50p
1 280 x 720
37.50
50.0
74.25
Y/H
-
o
1125 (1080)/60i 
1 920 x 1 080i
33.75
60.0
74.25
Y/H
-
o
1125 (1080)/50i
1 920 x 1 080i
28.13
50.0
74.25
Y/H
-
o
1125 (1080)/24p
1 920 x 1 080
27.00 
24.0
74.25
Y/H
-
o
1125 (1080)/60p
1 920 x 1 080
67.50
60.0
148.50
Y/H
-
o
1125 (1080)/50p
1 920 x 1 080
56.25
50.0
148.50
Y/H
-
o
VGA
640 x 480
31.47
59.9
25.18
R/H
o
o
35.00
66.7
30.24
R/H
o
o
37.86
72.8
31.50
R/H
o
o
37.50
75.0
31.50
R/H
o
o
43.27
85.0
36.00
R/H
-
-
SVGA
800 x 600
35.16
56.3
36.00
R/H
o
o
37.88
60.3
40.00
R/H
o
o
48.08
72.2
50.00
R/H
o
o
46.88
75.0
49.50
R/H
o
o
53.67
85.1
56.25
R/H
-
-
MAC16
832 x 624
49.73
74.6
57.28
R/H
o
o
XGA
1 024 x 768
48.36
60.0
65.00
R/H
o
o
56.48
70.1
75.00
R/H
o
o
60.02
75.0
78.75
R/H
o
o
68.68
85.0
94.50
R/H
-
-
MAC21
1 152 x 870
68.68
75.1
100.00
R/H
-
-
WXGA
1 280 x 768
47.78
59.9
79.50
R/H
-
-
60.29
74.9
102.25
R/H
-
-
1 280 x 720
44.77
60.0
74.50
R/H
o
o
1 280 x 800
49.70
59.8
83.50
R/H
o
o
MSXGA
1 280 x 960
60.00
60.0
108.00
R/H
o
o
75.20
75.0
130.00
R/H
-
-
1-2 Compatible Signals
PT-LX271/PT-LX321/PT- LX351/PT-LW321/PT-LW271 series
1-4
Appendices
ENGLISH - 
65
Appendix
Mode
Display 
resolution *
1
 
(dots)
Scanning 
frequency
Dot clock 
frequency 
(MHz)
Format
Plug and play *
3
H (kHz) V (Hz)
COMPUTER 1/ 
COMPUTER 2
HDMI
SXGA
1 280 x 1 024
63.98
60.0
108.00
R/H
o
o
79.98
75.0
135.00
R/H
o
o
91.15
85.0
157.50
R/H
-
-
1366x768
1 366 x 768
47.72
59.8
84.75
R/H
o
o
SXGA+
1 400 x 1 050
65.32
60.0
121.75
R/H
o
o
UXGA
1 600 x 1 200
75.00
60.0
162.00
R/H
o
o
*1: “i” added to the resolution value indicates an interlaced signal.
*2: HDMI signal of 480i and 576i is only supported by 27MHz Dot clock signal.
*3:  Where marked "o" signals indicates in Plug and Play is compatible with EDID of projector. Unmarked signals in Plug and 
Play may also be compliant if input terminals are written in the format list. Where Plug and Play is unmarked and nothing is 
written in the format list, difficulties in projecting image may occur even when computer and projector appear to have same 
resolution.
Note
The number of display dots is 1 024 x 768 for the PT-LX351, PT-LX321, PT-LX271 and 1 280 x 800 for the PT-
 
l
LW321, PT-LW271. 
 
A signal with a different resolution will be projected after converting the resolution to match the projector display.
When interlaced signals are connected, flicker may occur on the projected image.
 
l
Even the above signals exist, some image signals that recorded in special method may not be displayed.
 
l
The <AUTO ADJ.> operation may not optimize the image position or the resolution, depending on the input signal format or 
 
l
the image contents. In this case, switch to a different image and execute <AUTO ADJ.> again.
Page of 92
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