-55-
Troubleshooting
No Sound
Check IC5001 and peripheral circuit.
Check 5V_AUDIO, 9V power supply.
check if the audio sig-
nal is observed at pins
10 and 21 of Ic5001.
Check audio output circuit.
Check speaker, connection of the terminal “K8F”
Yes
No
Check following steps.
Check IC5031, 5V_AUDIO and peripheral circuit.
Check the Mute signal at pin 1 of IC5031. The Mute signal is output from
pin 9 of IC 301<Scaler>. The OUT_DET signal is sent from Audio Out
terminal.
Mute-On: H at pin 347 of IC301, L at pin1 of IC5031
check if the audio sig-
nal is observed at pins 5
and 8 of Ic5031.
Yes
No
Summary of Contents for PLC-XU101
Page 59: ... 59 IC Block Diagrams BA7078 Sync Separator IC5301 AN5870 Signal Switch IC5201 ...
Page 60: ... 60 IC Block Diagrams FA5502 P F Control IC601 FA7711 DC DC Converter IC5801 ...
Page 63: ... 63 IC Block Diagrams LM4889 Audio Output IC5031 M62334 DAC IC3501 ...
Page 64: ... 64 IC Block Diagrams NJW1141 Audio Control IC5001 PW190 Scaler IC301 ...
Page 65: ... 65 IC Block Diagrams STR Z2156 Power OSC IC651 ...
Page 94: ... KL6AC Jun 2007 DC 350 Printed in Japan SANYO Electric Co Ltd ...