DOWNLOAD Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man3) Service Manual ↓ Size: 20.3 MB | Pages: 70 in PDF or view online for FREE

Model
PT-LW375 PT-LW335 PT-LB425 PT-LB385 PT-LB355 PT-LB305 (serv.man3)
Pages
70
Size
20.3 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / LCD PROJECTOR
File
pt-lw375-pt-lw335-pt-lb425-pt-lb385-pt-lb355-pt-lb.pdf
Date

Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man3) Service Manual ▷ View online

9
PREFACE
<LW375/LW335/LB425/LB385/LB355/LB305>
 
r
Wireless LAN
(Only for PT-LW375, PT-LW335, PT-LB425, PT-LB385 and PT-LB355)
To use the wireless LAN function with the projector, it is necessary to attach the optional Wireless Module (Model No.: 
ET-WML100).
Compliance standards
IEEE802.11b/g/n
Transmission method
DSSS, OFDM
Frequency range
(Channel)
2 412 MHz to 2 462 MHz (1 to 11 ch)
Transmission speed
(Standard value)
IEEE802.11b
Maximum 11 Mbps
IEEE802.11g
Maximum 54 Mbps
IEEE802.11n
Maximum 150 Mbps
Encryption method
WPA2-PSK(AES)
 
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Compatible signals
Refer to “List of compatible signals”of Operating Instructions for the types of video signals that can be used with the projector.
For Video signal 
Horizontal : 15.73 kHz, Vertical : 59.94 Hz
Horizontal : 15.63 kHz, Vertical : 50.00 Hz
For Y/C signal
Horizontal : 15.73 kHz, Vertical : 59.94 Hz
Horizontal : 15.63 kHz, Vertical : 50.00 Hz
For RGB signal
Horizontal 15 kHz - 91 kHz, Vertical 24 Hz - 85 Hz
Dot clock frequency: 162 MHz or less
For YC
B
C
R
/YP
B
P
R
 signal
Displayable resolution: 480i/576i to 1 920 x 1 080
Dot clock frequency: 148.5 MHz or less
For HDMI signal
Displayable resolution for movie-based signals: 480i/576i 
*1
 to 1 920 x 1 080
Displayable resolution for still image signals: 640 x 480 to 1 920 x 1 200 (non-interlaced)
Dot clock frequency: 25 MHz to 162 MHz
*1  Pixel-Repetition signal (dot clock frequency 27.0 MHz) only
10
PREFACE
<LW375/LW335/LB425/LB385/LB355/LB305>
 
r
Dimensions
ENGLISH - 115
Dimensions
Unit : mm (inch)
335 (13-3/16")
87 (3-7/16")
250 (9-27/32")
252 (9-29/32")
61 (2-13/32")
9 (11/32")
96 (3-25/32")
55 (2-5/32")
69 (2-23/32")
168 (6-5/8")
 
Actual dimension may differ by product.
Chapter 7   Appendix - Dimensions
SECTION
1
INF-1
 (2018-12)
SECTION 1 SERVICE INFORMATION
CONTENTS
1. Circuits Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INF-2
1. 1. Thermal switch 
1. 2. Lamp cover switch
1. 3. Fuse (F2003)
2. Maintenance/Replacement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INF-3
2. 1. Maintenance 
2. 2. Replacing the Unit
2. 3. How to check the lamp runtime
2. 4. Cleaning
3. Notes on service  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INF-10
3. 1. Before service operation
3. 2. Service
3. 3. Security functions
3. 4. Standby mode
3. 5. How to change the baud rate of serial communication port
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INF-14
4. 1. LED indicators
4. 2. Shutdown system
4. 3. Error log
4. 4. Troubleshooting chart
4. 5. I/O port functions
INF-2
SECTION 1 SERVICE INFORMATION
<LW375/LW335/LB425/LB385/LB355/LB305>
1. Circuits Protection
This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projector, it will 
automatically turn off by operating one of the following protection circuits. 
1. 1. Thermal switch 
There is a thermal switch inside of the projector to detect the inter-
nal temperature rising abnormally. When the internal temperature 
around lamp reaches near 120°C , the thermal switch will open to 
cut off the power supply to the lamp power circuit.
The thermal switch is not reset to normal automatically even if the 
internal temperature becomes normal. Please reset the thermal 
switch following to the procedure below.
How to reset the thermal switch
1. Remove the cabinet top case.
2. Press the reset button on the thermal switch. 
Caution:
Before press the reset button, disconnect the AC cord from the 
projector.
1. 2. Lamp cover switch
The lamp cover switch cuts off the drive signal to the lamp circuit 
when the lamp cover is removed or not closed completely. After open-
ing the lamp cover for replacing the lamp unit, place the lamp cover 
correctly otherwise the projector cannot turn on. 
1. 3. Fuse (F2003)
A fuse is located inside of the projector. When the <ON (G)/STANDBY (R)> indicator is not lighting, the fuse may be opened. 
Please check the fuse as following steps.
The fuse should be used with the following type;
Fuse Part No.: K5E632YY0007
TYPE VBS UBM 6.3A 250V (PF) FUSE
CONQUER. TYPE VBS UBM
How to replace the fuse
1.  The fuse is placed on the filter board. Remove the cabinet
    top according to the SECTION 2 "Mechanical Disassembly". 
2.  Take the fuse off from the fuse holder, then replace the new
    one with the specified type. 
 
Fuse
(F2003)
Thermal fuse 
Lamp cover switch
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