Panasonic PT-VZ570 Service Manual page 33

SECTION 1 SERVICE INFORMATION
■ No picture or abnormal picture is output
Confirm each cable connection
Confirm the below with a signal other than all black pattern.
No picture with VIDEO input
No picture with RGB1 input
No picture with RGB2 input
No picture with HDMI1 input
No picture with HDMI2 input
No picture with all of inputs
Check each power supply voltage of microprocessor &
Scale IC(IC301), FPGA(IC401),
Only for WUXGA series: Gamma IC (IC510), panel driver
A
IC(IC521,IC531,IC561)
Only for WXGA /XGA series: Gamma IC (IC501), panel driver
IC(IC561)
Check the waveform (Display output clock) at R2459 of
A
IC301(Resize&Micon)
Check the waveform (Input clock) at R2371 of IC2301
A
(Only for WUXGA series)
Only for WUXGA series: Check the input clock at R5161 of
IC510(Gamma IC)
A
Only for WXGA /XGA series: Check the input clock at R413 of
IC501(Gamma IC)
Only for WUXGA series:
Check the waveform
at IC521, IC531, IC561(SH IC)
A
R5264, R5226, R5227 (R)
R5629, R5622, R5645 (G)
R5320, R5304, R5300 (B)
Check the connection of connectors [K5R], [K5G], [K5B]
A
Replace [A] P.C.Board
A
OK
(3)
OK
OK
OK
OK
Only for WXGA /XGA series:
Check the waveform
at IC561(SH IC)
R574,R586 (R)
R495,R588 (G)
R507,R400 (B)
OK
OK
Connect the cables securely
Follow the section "VIDEO input check"
Follow the section "RGB1 input check"
Follow the section "RGB2 input check"
Follow the section "HDMI1 input check"
Follow the section "HDMI2 input check"
Only for WUXGA series: Check IC7831, IC8351, IC8371,
NG IC5831, IC5861, IC5851, IC513 - IC515 and peripheral
A circuits
Only for WXGA /XGA series: Check IC5831,IC5861,IC585
1,IC414,IC431,IC421,IC582,IC401 and peripheral circuits
NG
Check IC538,IC528,IC529,IC533,IC562,IC522,IC2306,
A
IC2304,IC2305,IC301 and peripheral circuit
NG
A Check IC2301 and peripheral circuit
Only for WUXGA series: Check IC510 and peripheral
NG
circuit
A
Only for WXGA /XGA series:Check IC501 and peripheral
circuit
Only for WUXGA series:
NG
Check IC521, IC531, IC561 (SH IC) and peripheral circuit
A
Only for WXGA /XGA series:
Check IC561 (SH IC) and peripheral circuit
NG
A Connect the connectors securely
INF-27