PZ-50HV2E (serv.man34) - Sharp TV Service Manual (repair manual). Page 12

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Remove the Rear Case (P).(Screws 

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 19)

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Remove the IF Earth Metal.(Screws 

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 2)

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Remove four screws.

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Remove the SW Power Supply Module.

SW Power Supply
Module

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This unit adopt the "Rear Case opened ! detection" system.
Please work in service as follows by all means.

Perform video transmission from the AVC System to the 
plasma display with digital signal in the PZ-50HV2 series. 
Therefore adopt contents protection by HDCP for copyright 
protection.
Moreover establish the detect switch which is never turned 
on the power when "a rear case of plasma display was 
opened carelessly".
Detect switch does not detect at the power supply OFF and 
the remote control unit wait state. Please stick this detect 
switch with tape before turning on the power in inside 
diagnoses of the plasma display. And please remove it not 
to forget the tape which stuck after the repair.

When detect switch works, LED of red blinks in succession 
by a 300msec period.
Press keys in order of "MENU" key, "ENTER" key and 
"POWER" key with the remote control unit after sticking the 
detect switch with tape or close the rear case beforehand.
This unit activates and it becomes the service factory mode 
screen. Afterwards, turn off the power with the remote 
control unit.
Perform the normal operation afterward.

Detect Switch (S2)

Rear View

IF Earth
Metal

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