Panasonic PT-LW330 / PT-LW280 / PT-LB360 / PT-LB330 / PT-LB300 / PT-LB280 (serv.man5) Service Manual ▷ View online
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Safety Instructions
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice"
in this service manual.
Caution
Precaution
If using of this projector at an altitude of lower than 1,400m, set HIGHT ALTITUDE MODE to "OFF".
Failure to observe this may cause malfunctions.
If using of this projector at an altitude of higher than 1,400m and lower than 2,700m, set HIGHT ALTITUDE MODE to
"ON".
Failure to observe this may cause malfunctions.
Never use this projector at an altitude of 2,700m or higher.
Failure to observe this may cause malfunctions.
(Refer to "PROJECTOR SETUP" menu in Operating Instructions.)
Using this projector at high altitude, consult your dealer or Authorized Service Center about preparations.
About lead free solder (PbF)
This project is using the P.C. Board which applies lead free solder.
Use lead free solder in servicing from the standpoint of antipollution for the global environment.
Lead free solder: Sn-Ag-Cu (tin, silver and copper) has a higher melting point (approx. 217°C) than standard solder. Typically the
melting point is 30-40°C higher. When servicing, use a high temperature soldering iron with temperature limitation function and set it to
370°C±10°C.
Be precautious about lead free solder. Sn-Ag-Cu (tin, silver and copper) will tend to splash when heated too high (approx. 600°C or
higher).
Use lead free solder for the P.C. Board (specified on it as "PbFree") which uses lead free solder. (When you unavoidably use lead
solder, use lead solder after removing lead free solder. Or be sure to heat the lead free solder until it melts completely, before applying
lead solder.)
After soldering to double layered P.C. Boards, check the component side for excess solder which may flow onto the opposite side.
About the identification of the lead free solder P.C. Board.
For the P.C. Board which applies lead free solder, the symbol as shown in the figure below is printed or stamped on the
surface or the back of the P.C. Board.
WARNING:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy. If not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is recommended to try to correct the interference by one or more of the following
measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio or TV technician for help.
CAUTION: Any unauthorized changes or modifications to this equipment will void the users authority to operate.
Warning
This service manual is designed for experienced repair technicians only and is not designed for use by
the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in
attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt with in this service
information by anyone else could result in serious injury or death.
WARNING: Use UV Radiation eye and skin protection during servicing
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Safety Instructions
Safety precautions
1.1. General Guidelines
- For continued safety, no modification of any circuit must be attempted.
- Unplug the power cord from the power outlet before disassembling this projector.
- Use correctly the supplied power cord and must ground it.
- It is advisable to use an isolation transformer in the AC power line before the service.
- Be careful not to touch the rotation part (cooling fan, etc.) of this projector when you service with the upper case
removed and the power supply turned ON.
- Observe the original lead dress during the service. If a short circuit is found, replace all the parts overheated or
damaged by the short circuit.
- After the service, all the protective devices such as insulation barriers, insulation papers, shields and isolation
R-C combinations must be properly installed.
- After the service, check the leakage current to prevent the customer from getting an electric shock.
1.2. Leakage Current Check
1. Prepare the measuring circuit as shown in Fig. 1.
Be sure to use a voltmeter having the performance described in Table 1.
2. Assemble the circuit as shown in Fig. 2. Plug the power cord in a power outlet.
3. Connect M1 to T1 according to Fig. 2 and measure the voltage.
4. Change the connection of M1 from T1 to T2 and measure the voltage again.
5. The voltmeter must read 0.375 V or lower in both of step 3 and 4. This means that the current must be 0.75mA
or less.
6. If the reading is out of the above standard, the projector must be repaired and rechecked before returning to the
customer because of a possibility of an electric shock.
1.3. UV Precaution and UHP Lamp Precautions
- Be sure to unplug the power cord from the power outlet when replacing the lamp.
- Because the lamp reaches a very high temperature during its operation, wait until it cools completely when
replacing the Lamp Unit.
- The lamp emits small amounts of UV-radiation, avoid direct-eye contact with the light.
- The lamp unit has high internal pressure. If improperly handled, explosion might result.
- Because the high pressure lamp involves a risk of failure, never touch the lamp wire lead during the service.
Fig. 1
Fig. 2
Table. 2
Weighted leak = Vb/500A
Accuracy:
Input resistance:
Input capacity:
Frequency scope:
Input capacity:
Frequency scope:
To power outlet
Insulation transformer
Connect
Projector
Measure
circuit
(Fig. 1)
Fig. 2
Table. 2
To T1
or T2
in Fig. 2
15HZ to 1MHZ
Voltmeter
(rms reading)
Performance
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Specifications
Specifications
Power supply
AC 100 V - 240 V, 50 Hz/60 Hz
Power consumption
100 V - 240 V, ~3.5A, 300 W
When [Standby mode] of [Setting] is set to [Eco]: 0.5W
When [Standby mode] of [Setting] is set to [Eco]: 0.5W
When [Standby mode] of [Setting] is set to [Normal]: 6W
Optical
block
Panel size
PT-LW330, PT-LW280
1.5 cm (0.59") (aspect ratio 16: 10)
PT-LB360, PT-LB330, PT-LB300,
PTLB280
1.6 cm (0.63") (aspect ratio 4: 3)
Display method
3 transparent Optical blocks (RGB)
Drive method
Passive matrix method
Pixels
PT-LW330, PT-LW280
1 024 000 pixels (1 280 x 800 dots) x 3 panels
PT-LB360, PT-LB330, PT-LB300,
PT-LB280
786,432 pixels (1,024 x 768 dots) x 3 panels
Lens
Zoom
1.2 x
Focus
PT-LW330, PT-LB330, PT-LB360, F 1.6 ~ 1.76, f 19.16 mm ~ 23.02 mm
PT-LW280, PT-LB300, PT-LB280
PT-LW280, PT-LB300, PT-LB280
F 2.1 ~ 2.25, f 19.11 mm ~ 22.94 mm
Luminous lamp
230 W UHM lamp
Light output
*1
PT-LB360
3 700 lm
PT-LW330, PT-LB330
3 300 lm
PT-LW280, PT-LB280
2 800 lm
PT-LB300
3 100 lm
Contrast ratio
*1
10 000 : 1 (When [Lamp control] is set to [ Normal], [Image mode] is set to [Dynamic]
and [Iris] is set to [On].)
Applicable
scanning
frequency
for Video signal
(including S-video)
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
Dot clock frequency: 162 MHz or less
for YPBPR signal
[525i(480i)]
Horizontal 15.75 kHz, Vertical 59.94 Hz
625i(576i)
Horizontal 15.63 kHz, Vertical 50 Hz
[525i(480i)]
Horizontal 31.50 kHz, Vertical 59.94 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)60p]
Horizontal 67.50 kHz, Vertical 60 Hz
[1125(1080)50p]
Horizontal 56.25 kHz, Vertical 50 Hz
[1125(1080)24p]
Horizontal 27.00 kHz, Vertical 24 Hz
[1125(1080)24sF] Horizontal 27.00 kHz, Vertical 48 Hz
[1125(1080)25p]
Horizontal 28.13 kHz, Vertical 25 Hz
[1125(1080)30p]
Horizontal 33.75 kHz, Vertical 30 Hz
HD/SYNC and V terminal are not compliant with 3 value composite SYNC.
for HDMI signal
525i(480i), 625i(576i), 525p(480p), 625p(576p), 750(720)/60p, 750(720)/50p,
1125(1080)/24p, 1125(1080)/24sF, 1125(1080)/24p, 1125(1080)/30p, 1125(1080)/60p,
1125(1080)/50p, 1125(1080)/60i, 1125(1080)/50i
Displayable resolution: VGA to WUXGA (non-interlace)
Dot clock frequency: 162 MHz or less
*1 : Measurement, measuring conditions and method of notation all comply with ISO21118 international standards.
*2 : For details of video signals that can be projected using this projector, refer to “List of compatible signals”.
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Specifications
Color system
7 (NTSC, NTSC4.43, PAL, PAL-N, PAL-M, SECAM, PAL60)
Projection size
0.76 m - 7.62 m (30" - 300")
Screen aspect ratio
PT-LW330, PT-LW280
16 : 10
PT-LB360, PT-LB330,
PT-LB300, PT-LB280
4 : 3
Projection scheme
[Front], [Rear], [Ceiling/Front], [Ceiling/Rear] (Menu setting system)
Built-in speaker
PT-LW330, PT-LW280
PT-LB360, PT-LB330,
10 W (monaural) x 1
PT-LB300, PTLB280
2 W (monaural) x 1
Terminals
<COMPUTER 1 IN>
1 (High-density D-sub 15 pin 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
[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
[Y/C signal] Y: 1.0 V [p-p] C: 0.286 V [p-p] 75 Ω S1 signal compatible
<COMPUTER 2 IN/
1 OUT>
*3
1 (High-density D-sub 15 pin female) (Input /Output switching)
[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
<VIDEO IN>
1 (Pin jack 1.0 V [p-p] 75 Ω)
<HDMI IN>
1 (HDMI 19 pin, HDCP and Deep color compatible)
Audio signals: Linear PCM (Sampling frequency: 48 kHz/44.1 kHz/32 kHz)
<AUDIO IN>
1 (M3 stereo mini jack, 0.5 V [rms], Input impedance 22 kΩ and more)
1 (Pin jack x 2 (L-R), 0.5 V [rms], Input impedance 22 kΩ and more)
<AUDIO OUT>
1 (M3 stereo mini jack, stereo monitor output compatible,
0 V [rms] to 2.0 V [rms] variable, output impedance 2.2 kΩ and less)
<USB A/VIEWER>
*4
USB connector (type A x 1, output DC 5V, 500mA maximum)
<USB B/DISPLAY>
*5
USB connector (type B x 1)
<SERIAL IN>
1 (D-Sub 9 pin, RS-232C compliant, for computer control use)
<LAN>
*4
1 (for RJ-45 network connection, PJLink compatible, 10Base-T/100Base-TX)
Power cable length
1.8 m (70-7/8")
Cabinet
Molded plastic
Dimensions
Width: 335 mm (13-3/16")
Height: 96 mm (3-25/32") (when adjustable foot shortened)
Depth: 252 mm (9-29/32")
Weight
Approx.2.8 kg (6.17 lbs.)
*6
Noise level
*7
When set to [ (Normal)] in [Lamp control] : 37 dB
When set to [ (Eco 1)] in [Lamp control] : 33 dB
When set to [ (Eco 2)] in [Lamp control] : 28 dB
Operating
environment
Operating
environment
temperature
5 °C (41 °F) to 40 °C (104 °F) (Elevation: below 1 400 m (4 593'); [High land]: [Off])
5 °C (41 °F) to 35 °C (95 °F) (Elevation: 1 400 m (4 593') ~ 2 700 m (8 858'); [High
land]: [On])
Operating
environment
humidity
20%-80% (no condensation)
Remote
Controller
Power supply
DC 3 V (AAA/R03/LR03 battery x 2)
Operation range
Approx. 5 m (16'4-13/16") (when operated directly in front of receptor)
Weight
63 g (2.22 ozs.) (including batteries)
Dimensions
Width: 44 mm (1-23/32"), Length: 105 mm (4-1/8"), Height: 20.5 mm (13/16")
*3 The <MONITOR OUT> terminal is only for PT-LB300 and PT-LB280.
*4 This terminal is only for PT-LW330, PT-LW280, PT-LB360 and PT-LB330.
*5 The <USB> terminal is only for PT-LB300 and PT-LB280.
*6 This is an average value. It may differ depending on individual product.
*7 Measurement, measuring conditions and method of notation all comply with ISO21118 international standards.
*8 [Lamp control] will be switched to [ (Eco 1)] automatically when the operating environment temperature is 35 °C to 40 °C.
Note
● The part numbers of accessories and separately sold components are subject to change without notice.
