Panasonic PT-VZ570 Service Manual page 34

SECTION 1 SERVICE INFORMATION
■ VIDEO input check
One of the inputs (HDMI1, HDMI2, RGB1, RGB2) can be dis-
played
J Check the waveform at pin 2 of [J1]
Check the cable between [KA1] and [J1]
A Check IC301 and peripheral circuits
■ RGB1 input check
One of the inputs (HDMI1,HDMI2, VIDEO) can be displayed
One of the inputs (HDMI1,HDMI2) can be displayed
Input (RGB2) can be displayed
Check the output waveform at L1002, L1012,
A
L1022,Q1001,Q1004,Q1006
Check the video input waveform at IC301
A
C331(G/Y), C332(R/Pr), C333(B/Pb)
Check the sync input waveform at IC4701
A
IC5301
A Check IC301 and peripheral circuits
OK
OK
OK
OK
OK
OK
OK
OK
OK
NG
(3)
NG
J Replace [J] P.C.Board
NG
Replace cable
NG
(3)
NG
A Check IC301 and peripheral circuits
NG
A Check IC4001,IC5301 and IC4701 and peripheral circuit
NG
Check L1002, L1012, L1022,Q1001,Q1004,Q1006 and
A
peripheral circuit
NG
Check C331(G/Y), C332(R/Pr), C333(B/Pb) and peripheral
A
circuit
NG
A Check IC4701, IC5301 and peripheral circuits
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