Panasonic PT-VZ575N / PT-VZ575ND / PT-VZ575NT / PT-VW535N / PT-VW535ND / PT-VW535NT / PT-VX605N / PT-VX605ND / PT-VX605NT Service Manual ▷ View online
INF-29
SECTION 1 SERVICE INFORMATION
■ RGB2 input check
■ Miracast 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, ,DIGITAL LINK) can be
displayed
NG
A Check IC301 and peripheral circuits
Miracast input can be displayed
NG
NT Check IC8501 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
NT Check [IC8501,K8802] and peripheral circuits
One of the inputs (HDMI1,HDMI2, VIDEO) can be displayed
NG
One of the inputs (HDMI1,HDMI2, RGB1, RGB2, DIGITAL LINK,
VIDEO) can be displayed
NG
(3)
(3)
OK
OK
OK
OK
OK
OK
OK
INF-30
SECTION 1 SERVICE INFORMATION
■ HDMI1 HDMI2 input check
■ DIGITAL LINK input check
One of the inputs (Miracast, DIGITAL LINK) can be displayed
NG
A Check IC8001,IC8050,IC8040 and peripheral circuits
One of the inputs (RGB1, RGB2, HDMI, HDMI2) can be
displayed
NG
A Check IC301 and peripheral circuits
A Check K8001,K8002 and peripheral circuits
A Check IC8201,IC8206,IC8351,IC8371 and peripheral circuits
One of the inputs (RGB1,RGB2, VIDEO) can be displayed
NG
Inputs VIDEO can be displayed
NG
(3)
(3)
OK
OK
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-31
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
A Check the clock waveform around IC305
X305: 25MHz
NG
A Check IC305,X305 and peripheral circuits
OK
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
INF-32
SECTION 1 SERVICE INFORMATION
■ SERIAL IN does not respond
A Check the cable connection of K20A (SERIAL IN)
NG
A Connect the connector securely
A The signal waveform can be detected at pins 10, 12 of IC3801
when the serial command is transmitted.
NG
A Check IC3801 and peripheral circuits
A The signal waveform can be detected at pins 5, 6 of KA1 when
the serial command is transmitted.
NG
J
Replace [J]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
■ Controls of side panel does not respond
A Check the voltage (DC 3.3V) at pin 13 of connector [S1] when the
power is turned on.
NG
A Check the [3.3V] power line on the [A]-P.C.Board
A Check the connection cable between [A32] - [S1]
NG
Replace the cable
A Check the voltage [DC 3V] at pins 9 - 12 of connector [S1]
NG
S Check the [3.3V] power line on the [S]-P.C.Board
A Check that the voltage changes at L1177 - L1180 when some of
the control button are pressed
NG
S Replace [S]-P.C.Board
A Replace [A]-P.C.Board
OK
OK
OK
OK
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