-65-
Troubleshooting
No Sound
Check following steps.
Check IC5001 and peripheral circuit.
Check S-7V and S5V power supply.
check if the audio signal
is observed at pins 1 and
7 of Ic5001.
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 267 of IC 01<Scaler>. The OUT_DET signal is sent from Audio Out
terminal.
Mute-On: H at pin 267 of IC01, 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 IC01.
check if the audio signal
is observed at pins 36
and 42 of Ic001.
Yes
No
Check IC5002 and peripheral circuit.
Check the Pins 7 and 2 of IC5002, the voltage is respectively .V and
1.8V.
check if the audio signal
is observed at pins 19
and 23 of Ic5002.
Yes
No
Содержание LC-XBM21
Страница 68: ...68 IC Block Diagrams MAX232ECPWRP RS 232C Driver IC3801 L3E06200P0A D A S H LCD Driver IC501 IC531 IC561...
Страница 69: ...69 IC Block Diagrams PW190 Scaler IC301 MR4010 Power OSC IC631...
Страница 71: ...71 IC Block Diagrams TB6608FNG IRIS Control IC601 TLV320AIC3105 Audio Control IC5002...
Страница 101: ...Key No Part No Description Key No Part No Description 101 Electrical Parts List KR8 XBM2100 KS8 XBM2600...
Страница 102: ...KR8BE KS8BE December 2010 Japan 2010 Eiki Internatinal Inc A key to better communications...