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Troubleshooting
No Sound
Check following steps.
check if the audio sig-
nal is observed at pins 1
and 7 of Ic5003.
Check audio output circuit.
Check speaker, connection of the terminal “K8F”.
Yes
No
Check IC001 and peripheral circuit.
Check the Mute signal at pin 1 of IC001. The Mute signal is output from
pin 344of IC 301<Scaler>. The OUT_DET signal is sent from Audio Out
terminal.
Mute-On: H at pin 344 of IC301, L at pin 1 of IC001
Check the AMP-STBY signal at pin 2 of IC001. The AMP-STBY signal is
output from pin 182 of IC301.
AMP-STBY signal : H at normal
check if the audio sig-
nal is observed at pins
36 and 42 of Ic001.
Yes
No
check if the audio sig-
nal is observed at pins
19 and 23 of Ic5001.
Yes
No
Check IC5003<Amp> and peripheral circuit.
Check S-7V and S5V power supply.
Check IC5001 and peripheral circuit.
Check pins 7 and 32 of IC5001, the voltage is respectively S3.3V
and S1.8V.
Check IC5002<Audio SW> and peripheral circuit.
Video: Pin 9: L, Pin 10: H
PC1: Pin 9: L, Pin 10: L
Содержание PLC-XU4000
Страница 64: ... 64 IC Block Diagrams SP3232ECYP RS 232C Driver IC3801 L3E06200P0A D A S H LCD Driver IC501 IC531 IC561 ...
Страница 65: ... 65 IC Block Diagrams L3E07111 Digital Gamma Correction IC401 TLV320AIC3105 Audio Control IC5001 ...
Страница 66: ... 66 IC Block Diagrams PW190 Scaler IC301 L3E08030F0A Dimmer Control IC9001 ...
Страница 67: ... 67 IC Block Diagrams MR4010 Power OSC IC631 PIC18F67J60 LAN CONTROL IC8801 ...
Страница 68: ... 68 IC Block Diagrams TPS54286 DC DC Converter IC7811 ...
Страница 73: ... 73 Parts Location Diagrams KA2 XU400000 L09 M12 Relay lens Out assembly S06 ...
Страница 96: ... KA2AC March 2011 DC 50 Printed in Japan SANYO Electric Co Ltd ...