PANASONIC REAR PROJECTION TELEVISION PT-43LC14 _ PT-50LC14 _ PT-60LC14 _ ABNORMAL PICTURE _ ABNORMAL SOUND _ ABNORMAL COLOR _ BLOCK LEVEL TROUBLESHOOTING TABLE

ABNORMAL PICTURE [ No color; Black/White picture; Abnormal color; No Synchronization; Dark Picture]

No picture or abnormal picture
Check that there is no picture or abnormal picture on the screen from all input terminals
(All input are NG.)	Does the OSD appear on the screen?	No	Replace the Projection Unit. Still NG, replace the Main C.B.A.
	Yes
	Replace the Main C.B.A.
(Only Video1 OR 2 input is NG.)	Replace the Rear Jack C.B.A.
(Only Video3 input is NG.)	Replace the Front Jack C.B.A. Still NG, replace Rear Jack C.B.A.
(Only tuner input is NG.)	Replace the Tuner C.B.A. Still NG, replace the Rear Jack C.B.A.
(Only RGB 1 input is NG.)	Replace the Main C.B.A.
(Only RGB 2 input is NG.)	Replace the Front Jack C.B.A.  Still NG,replace the Main C.B.A.
(Only Component 1, 2, 3 OR 4 input is NG.)	Replace the Rear Jack C.B.A.
(Component 1, 2, 3 AND 4 input is NG.)	Replace the Main C.B.A. Still NG, replace the Rear Jack C.B.A.
(Only HDMI input is NG.)	Replace the Main C.B.A.
(Tuner, Component AND Video input is NG.)	Replace the Rear Jack C.B.A.
(PC/SD Card input is NG.)	Replace the Main C.B.A. In the case that one or some input is NG, it can be judged that the Projection Unit is OK.		{ NG à Not Good}

NO AUDIO OUTPUT FROM BOTH SPEAKERS

No sound from built-in both L-CH and R-CH Speakers
Check that there is an audio signal to the Audio Out Terminal from all input terminals.	(All input are NG.)  à	Replace the Rear Jack C.B.A.
(Only Audio1, 2, Component 1, 2, 3, OR 4 input is NG.)	Replace the Rear Jack C.B.A.
(Only Audio3 input is NG.)	Replace the Front Jack C.B.A. Still NG, replace the Rear Jack C.B.A.
(Only Tuner input is NG.)	Replace the Tuner C.B.A. Still NG, replace the Rear Jack C.B.A.
(Only RGB 1 input is NG.)	Replace the Main C.B.A.
(Only RGB 2 input is NG.)	Replace the Front Jack C.B.A. Still NG, replace the Main C.B.A.
(Only HDMI input is NG.)	Replace the Main C.B.A.
Replace the Audio Amp C.B.A. Still NG, Replace the Rear Jack C.B.A. Still NG, Replace the Power C.B.A.

No sound from built-in L-CH Speaker only
Press "MENU" button on the remote and select "BALANCE" in MENU screen. Then press "OK."
Does the "BALANCE" becomes center position?	No	Set to the center position.
Yes
Replace the L-CH Speaker
No sound from built-in R-CH Speaker only
Press "MENU" button on the remote and select "BALANCE" in MENU screen. Then press "OK."
Does the "BALANCE" becomes center position?	No	Set to the center position.
Yes
Replace the R-CH Speaker.