Panasonic PT-DZ13KU, Service Manual, Page: 40 / 121

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* CPU : Central Processing Unit
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No picture appears in every input mode.
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P
Check voltage on A3 connector 40 pin is approx 3.3 V.
Check the IC3501 (main CPU), IC3515 (AND gate)
and the peripheral circuits.
Replace the P-P.C.Board.
Check the connector of the RW-P.C.Board.
RW1-A3, RW2
WF1
Replace the RW-P.C.Board. RW
Follow the section "DVI-D input checks".
Follow the section "HDMI input checks".
Follow the section "SDI1 input checks".
(DZ13K/DS12K/DZ10K only)
Follow the section "PinP of RGB1/RGB2 input checks".
Follow the section "Main CPU operation checks".
No picture appears during DVI-D input.
No picture appears during HDMI input.
RW
Check signal waveform on A3 connector 58 pin.
Check voltage on A3 connector 39 pin is approx 3.3 V.
Follow the section "SDI2 input checks".
(DZ13K/DS12K only)
Follow the section "A-P.C.Board operation checks".
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No picture appears during SDI1 input.
(DZ13K/DS12K/DZ10K only)
Check the input signal. (other than all black picture)
No picture appears during VIDEO input.
No picture appears during Y/C input.
At "P in P", RGB1/RGB2 input does not appear
No picture appears during SDI2 input.
(DZ13K/DS12K only)
Follow the section "VIDEO input checks".
Follow the section "Y/C input checks".
Follow the section "RGB1 input checks".
Follow the section "RGB2 input checks". No picture appears during RGB2 input.
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No image appears (picture is abnormal)
No picture appears during RGB1 input.
Check that all the cables are connected properly. Connect the cables properly.
FG/FR-P.C.Board checks and replace.
WF-P.C.Board checks and replace.