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-31
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 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
INF-32
SECTION 1 SERVICE INFORMATION
■ No sound
A/J
[ANALOG]
Check the connections K50A (AUDIO IN), K30B (AUDIO IN1)
[DIGITAL]
Check the connections K8001 (HDMI1), K8002 (HDMI2)
NG
Check the cable connection securely
J
[ANALOG]
Check the waveform at pins 1 and 3 of connector [K50A]
Check the waveform at pins 2 and 3 of connector [K30B]
NG
J
Check K50A, K30A and peripheral circuits
A [ANALOG]
Check the cable connection between connectors [J1] - [KA1]
NG
Replace the cable
J
[Common]
Check the waveform at pins 5,14,1,12,9 and 10 of IC5002.
NG
J
Check IC5002 and peripheral circuits
J
[Common]
Check the waveform at pins 12 and 13 of IC5001.
NG
J
Check IC5001 and peripheral circuits
OK
NG
OK
OK
OK
OK
Check each cable connection
No sound with built-in speaker
NG
Follow the section "Built-in speaker check"
No sound with external speakers
NG
Follow the section "AUDIO OUT check"
No sound with built-in and external speakers
J
[Common]
Check the waveform at pins 3, 5, 1 and 7 of IC5003.
NG
J
Check IC5003 and peripheral circuits
J
[Common]
Check the waveform at pins 12 of IC001.
NG
J
Check IC001 and peripheral circuits
A Replace [A]-P.C.Board
OK
OK
INF-33
SECTION 1 SERVICE INFORMATION
■ Built-in speaker check
■ AUDIO OUT check
A Check the waveform at pins 1 and 3 of connector [J2]
NG
J
Check IC001 and peripheral circuits
Replace speaker
A Replace [A]-P.C.Board
OK
NG
A
[ANALOG]
Check the connection cable between connectors [KA1] and
[J1]
NG
Replace the cable
J
Replace [J]-P.C.Board
A Replace [A]-P.C.Board
NG
OK
INF-34
SECTION 1 SERVICE INFORMATION
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