Panasonic PT-VZ570 / PT-VZ570D / PT-VZ570T / PT-VW530 / PT-VW530D / PT-VW530T / PT-VX600 / PT-VX600D / PT-VX600T / PT-VX60 Service Manual ▷ View online
INF-27
SECTION 1 SERVICE INFORMATION
■ No picture or abnormal picture is output
Confirm each cable connection
Connect the cables securely
Confirm the below with a signal other than all black pattern.
No picture with VIDEO input
Follow the section "VIDEO input check"
No picture with RGB1 input
Follow the section "RGB1 input check"
No picture with RGB2 input
Follow the section "RGB2 input check"
No picture with HDMI1 input
Follow the section "HDMI1 input check"
No picture with HDMI2 input
Follow the section "HDMI2 input check"
No picture with all of inputs
(3)
OK
A
Check each power supply voltage of microprocessor &
Scale IC(IC301), FPGA(IC401),
Only for WUXGA series: Gamma IC (IC510), panel driver
IC(IC521,IC531,IC561)
Only for WXGA /XGA series: Gamma IC (IC501), panel driver
IC(IC561)
NG
A
Only for WUXGA series: Check IC7831, IC8351, IC8371,
IC5831, IC5861, IC5851, IC513 - IC515 and peripheral
circuits
Only for WXGA /XGA series: Check IC5831,IC5861,IC585
1,IC414,IC431,IC421,IC582,IC401 and peripheral circuits
A Check the waveform (Input clock) at R2371 of IC2301
(Only for WUXGA series)
NG
A Check IC2301 and peripheral circuit
A
Only for WUXGA series:
Check the waveform
at IC521, IC531, IC561(SH IC)
R5264, R5226, R5227 (R)
R5629, R5622, R5645 (G)
R5320, R5304, R5300 (B)
NG
A
Only for WUXGA series:
Check IC521, IC531, IC561 (SH IC) and peripheral circuit
Only for WXGA /XGA series:
Check IC561 (SH IC) and peripheral circuit
A Check the waveform (Display output clock) at R2459 of
IC301(Resize&Micon)
NG
A Check IC538,IC528,IC529,IC533,IC562,IC522,IC2306,
IC2304,IC2305,IC301 and peripheral circuit
A
Only for WUXGA series: Check the input clock at R5161 of
IC510(Gamma IC)
Only for WXGA /XGA series: Check the input clock at R413 of
IC501(Gamma IC)
NG
A
Only for WUXGA series: Check IC510 and peripheral
circuit
Only for WXGA /XGA series:Check IC501 and peripheral
circuit
A Check the connection of connectors [K5R], [K5G], [K5B]
NG
A Connect the connectors securely
A Replace [A] P.C.Board
OK
OK
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)
INF-28
SECTION 1 SERVICE INFORMATION
■ VIDEO input check
■ RGB1 input check
Check the cable between [KA1] and [J1]
NG
Replace cable
A Check the sync input waveform at IC4701
IC5301
NG
A Check IC4701, IC5301 and peripheral circuits
Input (RGB2) can be displayed
NG
A Check IC4001,IC5301 and IC4701 and peripheral circuit
A Check the video input waveform at IC301
C331(G/Y), C332(R/Pr), C333(B/Pb)
NG
A Check C331(G/Y), C332(R/Pr), C333(B/Pb) and peripheral
circuit
J
Check the waveform at pin 2 of [J1]
NG
J
Replace [J] P.C.Board
One of the inputs (HDMI1,HDMI2) can be displayed
NG
A Check IC301 and peripheral circuits
A Check the output waveform at L1002, L1012,
L1022,Q1001,Q1004,Q1006
NG
A Check L1002, L1012, L1022,Q1001,Q1004,Q1006 and
peripheral circuit
A Check IC301 and peripheral circuits
A Check IC301 and peripheral circuits
One of the inputs (HDMI1, HDMI2, RGB1, RGB2) can be dis-
played
NG
One of the inputs (HDMI1,HDMI2, VIDEO) can be displayed
NG
(3)
(3)
OK
OK
OK
OK
OK
OK
OK
OK
OK
INF-29
SECTION 1 SERVICE INFORMATION
■ RGB2 input check
Input (RGB1) can be displayed
NG
A Check IC4701 and IC5301 and peripheral circuit
A Check the video input waveform at IC301,C362,C363,C361.
NG
A Check C362,C363,C361 and peripheral circuit
One of the inputs (HDMI1,HDMI2) can be displayed
NG
A Check IC301 and peripheral circuits
A Check the output waveform at L1051, L1061,
L1071,Q1003,Q1002,Q1005
NG
A Check L1051, L1061, L1071,Q1003,Q1002,Q1005 and
peripheral circuit
A Check IC301 and peripheral circuits
One of the inputs (HDMI1,HDMI2, VIDEO) can be displayed
NG
(3)
OK
OK
OK
OK
OK
■ HDMI1 HDMI2 input check
Check IC8001 and peripheral circuits
NG
A Check IC301 and peripheral circuits
A Check K8001,K8002 and peripheral circuits
One of the inputs (RGB1,RGB2, VIDEO) can be displayed
NG
(3)
OK
OK
■ Remote control does not respond
R The signal waveform can be detected at pin 1 of A2901 when the
remote control button is pressed.
NG
J
Check A2901 and peripheral circuits
R Check the cable connection between [R1] - [K8D]
NG
Replace the cable
A Check the waveform at L2892 when the remote control button is
pressed.
NG
R Replace [RC]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
INF-30
SECTION 1 SERVICE INFORMATION
■ [A] P.C.Board operation check
■ Main microprocessor check
A Check the clock waveform around IC301
X301 : 24MHz
NG
A Check IC301, X301 and peripheral circuits
A Check the clock waveform around IC401
X402 : 24MHz
NG
A Check IC404, X402 and peripheral circuits
A When no input,check the waveform around IC301:
A13, D12, E12, C1, E4, G2, H2
NG
A Check IC301 and peripheral circuits
OK
OK
A Check the voltage (DC 6.0V) at pins 6, 7 of connector [K8R]
NG
A Replace the cable between [P03] - [K8R]
Replace [P] P.C.Board
A Check the voltage (DC 1.8V) at L5856
NG
A Check IC5851 and peripheral circuits
A Check the clock signal (24MHz} at X301
NG
A Check X301 and peripheral circuits
A Check the voltage (DC 3.3V) at L5838
NG
A Check IC5831 and peripheral circuits
A Check the voltages (DC 3.3V) at pins 6 of IC9885(SUB CPU)
NG
A Check IC9885, IC3802, IC3803, IC3804 and peripheral
circuits
A Check the voltage (DC 1V) at L5861
NG
A Check IC5861 and peripheral circuits
A Check the voltage (DC 3.3V) at pin 2 of IC304 (RESET)
NG
A Check IC304 and peripheral circuits
A Check IC1301 (FLASH ROM) and peripheral circuit.
NG
A Check IC1301 and peripheral circuits
OK
OK
OK
OK
OK
OK
OK
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