When Remote Controller Does Not Operate - Daewoo DLP-20J1 Service Manual

Trouble Shooting

7-8. When Remote Controller does not operate.

Output of 2 nd pin of P501A (IR) : PCB for Remote Control EX) Push "PR DOWN" button.
Check start
Y
Does input of key operate?
Y
Does remote
Controller operate?
Y
Whenever push the button of
Remote controller, does the 2 nd pin
Of P501A output normal?
Y
Check IR cable and I501
N
Check the I501
N
Check the battery of
remote controller
N
Exchange the Key PCB
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