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7 Disassembly and Assembly Instructions
7.1.
Cabinet Section
DISASSEMBLY METHOD OF CABINET SECTION
Cabinet section contains following removal procedures:
HOW TO REPLACE THE LAMP UNIT
a.
Removal of Rear Cover
b.
Removal of OPT/TV Unit
c.
Removal of Lamp Shield Case Ass'y with Fans
d.
Removal of Lamp Unit
e.
Removal of Lamp Fan
REMOVAL OF THE OPT/TV UNIT
REMOVAL OF THE RF AMP POWER SUPPLY P.C.B.
REMOVAL OF THE FRONT FAN AND THE REAR FAN
REMOVAL OF THE TUNER P.C.B., THE REAR JACK P.C.B. AND THE POWER P.C.B.
REMOVAL OF THE FRONT COVER UNIT AND THE DISPLAY
REMOVAL OF THE SCREEN UNIT FROM THE DISPLAY
DISASSEMBLY FLOWCHART
This flow chart indicates the disassembly steps of the cabinet parts and the P.C.Boards in order to gain access to item (s) to be
serviced. When reassembling, perform the step (s) in the reverse order. Bend, route and dress the wires as they were originally.
FRONT COVER UNIT
(DISPLAY)
SCREEN UNIT
MIRROR
BACK COVER
Note:
The optical parts will be exposed to the dust in the air when the Top Duct Unit is removed. Therefore, it is strongly recommend
to remove the Top Duct Unit only in a clean room.
Note :
a. Place a cloth or some other soft material under the P.C. Boards or Unit to prevent damage.
b. When reinstalling, ensure that the connectors are connected firmly and electrical components have not been damaged.
c. Do not supply power to the unit during disassembly and reassembly.
REAR COVER UNIT
OPT/TV UNIT
TUNER P.C.B.
RF AMP POWER
SUPPLY P.C.B.
REAR JACK P.C.B.
LAMP UNIT
POWER P.C.B.
SD/HDMI P.C.B.
POWER SWITCH/OPERATION P.C.B.
FRONT JACK/OPERATION P.C.B.
33
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7
TOP DUCT UNIT
DRIVE P.C.B.
MAIN P.C.B.
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