
PDP-427CMX
35
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Abnormality in audio (no sound from the speaker)
NO
NO
NO
NO
YES
YES
With the speaker cables disconnected,
are audio signals output from the
speaker terminals?
Is the green POWER indicator repeating a
burst of 5 flashes?
Is an audio signal input of the video slot to
the main unit NOT output although an
audio signal input to AUDIO 1 or 2 is
output?
Is either of the audio signals input to
AUDIO INPUT 1 or 2 of the monitor
output when selected?
Failure in the speakers or speaker cables
NO
Is the video slot card properly
installed?
Install the video slot card
properly.
YES
Failure in the MAIN PWB
or the CN3004 (AU connector) cable
Failure in the IC5308 or the poor
connection of the AUDIO input
terminal
Failure in the MAIN PWB
or the CN3004 (AU connector) cable
YES
YES
NO
Are audio signals inputted to
IC5308 pin5?
Failure in the VIDEO SLOT IF board, PCB
connectors, or video slot card. If the audio signal
is output after the video slot card is replaced by a
normally operating one, the removed video slot
card was defective.
YES
Failure in the AUDIO PWB
Failure in the IC3002
Failure in the IC5308
YES
NO
Does the green POWER indicator
repeat a burst of 5 flashes even after
the CN3004 (AU connector) cable is
disconnected?
YES
Is the voltage at Pin 9 of IC3002 4 V or
higher?
YES
NO
NO
Is the voltage at Pin 9 of IC3002 4 V
or higher after the CN3004 (AU
connector) cable is disconnected?
3. Abnormality in audio
Note:
Before performing a failure diagnosis, be sure to check that the settings of the unit are properly made by referring to its
specifications and instruction manual.
If speaker outputs with different polarities or a speaker output and ground are short-circuited, the protection circuit is activated,
and audio will not be output. In this case, turn the power off at the Main Power Switch, make connections properly, then turn the
power back on again. The protection circuit will then be released.
Waveform 41
Waveform 42
A
Содержание PDP-42MXE20
Страница 15: ...PDP 427CMX 15 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 19: ...PDP 427CMX 19 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 80: ...PDP 427CMX 80 1 2 3 4 1 2 3 4 C D F A B E 7 SCHEMATIC DIAGRAM 7 1 MAIN ASSY CPU BLOCK 1 13 ...
Страница 81: ...PDP 427CMX 81 5 6 7 8 5 6 7 8 C D F A B E MAIN ASSY 1 13 CPU BLOCK Lithium Battery ...
Страница 82: ...PDP 427CMX 82 1 2 3 4 1 2 3 4 C D F A B E 7 2 MAIN ASSY Interface BLOCK 2 13 ...
Страница 83: ...PDP 427CMX 83 5 6 7 8 5 6 7 8 C D F A B E MAIN ASSY 2 13 Inerface BLOCK ANALOG RGB OUT ...
Страница 85: ...PDP 427CMX 85 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 87: ...PDP 427CMX 87 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 89: ...PDP 427CMX 89 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 91: ...PDP 427CMX 91 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 92: ...PDP 427CMX 92 1 2 3 4 1 2 3 4 C D F A B E 7 7 MAIN ASSY A D A BLOCK 7 13 CAUTION MAIN ASSY 7 13 A D A BLOCK ...
Страница 93: ...PDP 427CMX 93 5 6 7 8 5 6 7 8 C D F A B E CAUTION ...
Страница 94: ...PDP 427CMX 94 1 2 3 4 1 2 3 4 C D F A B E 7 8 MAIN ASSY A D B BLOCK 8 13 CAUTION MAIN ASSY 8 13 A D B BLOCK ...
Страница 95: ...PDP 427CMX 95 5 6 7 8 5 6 7 8 C D F A B E CAUTION ...
Страница 97: ...PDP 427CMX 97 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 99: ...PDP 427CMX 99 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 100: ...PDP 427CMX 100 1 2 3 4 1 2 3 4 C D F A B E 1 2 2 2 2 2 Large size SCH diagram MAIN ASSY 10 13 Pastel BLOCK ...
Страница 101: ...PDP 427CMX 101 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 102: ...PDP 427CMX 102 1 2 3 4 1 2 3 4 C D F A B E 7 11 MAIN ASSY SDRAM OSD BLOCK 11 13 MAIN ASSY 11 13 SDRAM OSD BLOCK ...
Страница 103: ...PDP 427CMX 103 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 105: ...PDP 427CMX 105 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 107: ...PDP 427CMX 107 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 108: ...PDP 427CMX 108 1 2 3 4 1 2 3 4 C D F A B E 7 14 VSIF ASSY AKM1353 VSIF ASSY ...
Страница 109: ...PDP 427CMX 109 5 6 7 8 5 6 7 8 C D F A B E 1SS302 44 427 AKM1353 AKM1353 VNF1109 VNF1109 ...
Страница 110: ...PDP 427CMX 110 1 2 3 4 1 2 3 4 C D F A B E 7 15 SENB ASSY ...
Страница 111: ...PDP 427CMX 111 5 6 7 8 5 6 7 8 C D F A B E 7 16 SENC ASSY ...
Страница 112: ...PDP 427CMX 112 1 2 3 4 1 2 3 4 C D F A B E 7 17 SEND ASSY ...
Страница 113: ...PDP 427CMX 113 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 114: ...PDP 427CMX 114 1 2 3 4 1 2 3 4 C D F A B E 7 18 COMM SLOT ASSY ...
Страница 115: ...PDP 427CMX 115 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 116: ...PDP 427CMX 116 1 2 3 4 1 2 3 4 C D F A B E 8 PCB CONNECTION DIAGRM 8 1 MAIN ASSY SIDE A MAIN ASSY Lithium Battery ...
Страница 117: ...PDP 427CMX 117 5 6 7 8 5 6 7 8 C D F A B E SIDE A ANP2171 A ...
Страница 118: ...PDP 427CMX 118 1 2 3 4 1 2 3 4 C D F A B E SIDE B MAIN ASSY ...
Страница 119: ...PDP 427CMX 119 5 6 7 8 5 6 7 8 C D F A B E SIDE B ANP2171 A ...
Страница 120: ...PDP 427CMX 120 1 2 3 4 1 2 3 4 C D F A B E ...