Read Panasonic PT-CW240U / PT-CW240E / PT-CW240EA / PT-CW330U / PT-CW330E / PT-CW330EA / PT-CX300U / PT-CX300E / PT-CX300EA / PT-CW241RU / PT-CW241RE / PT-CW241REA / PT-CW331RU / PT-CW331RE / PT-CW331REA / PT-CX301RU / PT-CX301RE / PT-CX301REA (serv.man2) Service Manual online
It dose not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a prod-
uct. 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.
pletely, before applying lead solder.)
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 and, if not installed and used in accordance with the instruc-
tions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment dose cause harmful interference to radio or television reception, which can be determined by turning the equipment
off and on, The user is encouraged to try to correct the interference by one or more of the following measures.
device.
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 steps 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.
- 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.
- 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.
Comparison List ................................................................................V
2-2 Disassemble Lamp Module and Mesh Inlet ............................. 2-2
2-3 Disassemble Top Cover Module ..............................................2-3
2-4 Disassemble Keypad Board .....................................................2-8
2-5 Disassemble Main Board ....................................................... 2-10
2-6 Disassemble Shielding and IO Cover Module ....................... 2-14
2-7 Disassemble LAMP DRIVER and and POWER board .......... 2-15
2-8 Disassemble Speaker and AC Inlet Bracket .......................... 2-18
2-9 Disassemble ENGINE Module ............................................... 2-19
2-10 Disassemble DMD FAN and SYS FAN and Blower FAN ..... 2-21
2-11 Disassemble Bottom Module ................................................ 2-24
2-12 Repair Action ........................................................................ 2-26
3-2 Main Procedure ........................................................................3-2
3-3 NO Power troubleshooting .......................................................3-3
3-7 Network troubleshooting ........................................................ 3-10
3-8 IR Camera troubleshooting .................................................... 3-11
3-9 Electronic Function Block Diagram ........................................ 3-12
3-10 Pin Assignment .................................................................... 3-13
4-5 Fan rotation check ...................................................................4-5
4-6 Color wheel index adjustment ..................................................4-6
5-2: MCU Firmware Upgrade Procedure .......................................5-7
5-3: Network Firmware Upgrade Procedure ................................ 5-13