Read Panasonic PT-TW370 / PT-TX430 / PT-TX340 Service Manual online
INF-11
SECTION 1 SERVICE INFORMATION
<TW370/TX430/TX340>
3. 2. Service
3. 2. 1. Supporting Methods
The basic service policy is shown below.
Repair contents
Applied parts
Block replacement
P.C.Board replacement
- Lighting block (* Specified components are replaced)
- Optical block
- P.C.Board [Specified components are replaced except
A board(MAIN board) and P board(power board)]
- Iris unit
Replaced by discrete compo-
nents
Other electrical parts and mechanism parts
3. 2. 2. Repair
1. Since very strong light is leakage from the surroundings of optical block, when checking or adjusting the projector with top
cabinet removal, wear the UV protection glasses to protect the UV light.
2. Before repairing, make sure to turn off the main power and disconnect the power plug from the power outlet.
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or human
body. Please take care in static electricity, use an antistatic wrist strap or wear the anti-static electricity gloves.
3. After repairing, please check the gradation (10 step or the gray scale) test pattern or moving image.
Also, please check that it is normal on a self check screen.
3. 2. 3. Interlock detection
The lamp cover switch detects whether the lamp cover is mounted securely.
When the lamp cover is mounted securely, the interlock switch on the [A]-P.C.Board turns on.
3. 2. 4. Replacement of A-P.C. board
1. When the replacement of [A]-P.C.Board (assembly) is needed, back up the memory information such as adjustment data
from the old board to PC with the service software. Then transfer this data to the new [A]-P.C.Board.
For more information refer to the SECTION 3 "Adjustment".
* Download the service software from Projector service web site.
Ref. No.
Stored Data
IC1013
User setting data, Service adjustment data, Model No. Serial No.
IC1006
Gamma data, Color shading correction data
2. When [A]-P.C.Board is replaced, the MAC address of wired LAN and wireless LAN will be changed. Explain it to the cus-
tomers in advance.
Lamp cover switch
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