Before Service Operation; Service - Panasonic PT-RZ470 Series Service Manual

5. Notification for service operation

5. 1. Before service operation

5. 1. 1. Light source
1. LD(Laser) unit that is mounted on the inside of the light source unit is classified in Class 4 of the safety standards
Laser light can damage the human eye and skin.
It is dangerous, please do not perform energization in the state where the lighting case was disassembled.
2. When the ambient temperature becomes 35 °C (95 °F) or higher, the output light may be reduced to protect the projector.
3. The light source of the projector uses LED and Laser, luminance of the light source will decrease by duration of usage.
The usage time until when the luminance of the light source decreases by half is approximately 20 000 hours.
20 000 hours is the estimated duration, and it varies depending on individual differences and usage conditions.
4. Static electricity or electrical surges will reduce and degrade the reliability of the light source.
When working with the LDs take countermeasures to avoid the generation of static electricity, Use or wear appropriate
work clothes, gloves, shoes, grounded wrist straps and other tools to avoid static electricity.
5. 1. 2. DMD chips
1. The DMD chips are precision-made. Note that in rare cases, pixels of high precision could be missing or always lit.
Note that such phenomena does not indicate malfunction.
2. This is not a malfunction. Directing a high-power laser beam onto the lens surface can damage the DMD chips.
5. 1. 3. Lithium battery
1. The lithium battery is used for the internal clock in the A-P.C.Board. So when it consumed it must be replaced.
Lithium battery : CR2032
2. After replacing the lithium battery, set the "Date and Time" on the sub-menu which in main menu "projector set up".

5. 2. Service

5. 2. 1. Supporting Methods
The basic service policy is shown below.
Service method
Block replacement
P.C.Board replacement
Replaced by discrete components
5. 2. 2. Jig and Tool
1. Hexalobe (TORX type) driver [2.72 mm]
VESSEL T10H or comparable product
Part No. : TZSH07035
2. One-sided screw removal tool
When disassembling the optical block.
Part No. : TZSH07036
3. Hex wrench/Hex ball-point driver
[2.5mm] : Use for the lighting area adjustment.
[3.0mm] : Use for separate the lighting block and the DMD block.
4. Laser safety glass
Wavelength 440 ~ 455nm adaptation, laser light full absorption type.
Part No. : TZSH07038 (or comparable product)
* Use only specified lithium battery.
* used battery must be scrapped according to the instruction.
・ P-P.C.Board
(* Specified components are replaced)
・ K-P.C.Board
・ D-P.C.Board
・ B-P.C.Board
・ PD-P.C.Board
・ DMD Block (with FM-P.C.Board)
・ Lens unit
・ Other electrical parts / Other mechanical parts
INF - 14
Applied parts
・ M1-P.C.Board (internal)
・ M2-P.C.Board (intake)
・ M3-P.C.Board (airflow)
・ CW-P.C.Board
・ LD unit
・ LED-R unit
・ LED-B unit