Sanyo PLC-EF31 Service Manual

Also see for PLC-EF31: Owner's manual Service manual

-25-ASS'Y MOTOR&AUDIOSP-OFFAUDIO-MUTE253710IC001AUDIO_AMP.K16ASLOT - SELECTIC9002ASS'Y CGMOTHERK90KTerminal board- ComponentTerminal board- DVIIC801IC1801K8F K8EI/O EXPANDERCPUK16BK16FAudio systemASS'Y_MAINTerminal board- AV133Terminal board-DSUB151910972IC185114AUDIO_CONTROLSDASCLIC1871135 7K90CSLOT_1AUDIO INPUTLR33122K90DSLOT_2AUDIO INPUTLR33122K90ESLOT_3AUDIO INPUTLR33122K90FSLOT_4AUDIO INPUTLR33122LRMONITOR OUTK38EASS'Y_RS232CK38FL-OUTR-OUTLRLRLRLRLRThe terminal D-SUB15 and the SLOT-4 K90F do not existin some particular models.K80HK10HK3101K71HNo sound Troubleshooting Terminal board DVI, Component, AV and D-SUB15.1. Check that the R and L signals are correct.Pins122(R) and 33(L).K80H, K10H, K3101 and K71H.Terminal board DSUB15 does not equip in some particularmodels. Assembly CG-Mother1. Check that the R and L signals are correct.Pins 3(R) and 13(L) of IC9002. Assembly Main1. Check that the Vcc-voltages are correct.2. Check that the R and L input signals are correct.Pins 2 and 19 of IC18513. Check that the IC1851 output signals are correct.Pins 7(L) and 14(R).4. Check that the audio output signals are correct.Pins 7(L) and 1(R) of IC1871.5. Check that the AUDIO MUTE signal is correct.6. Check that the SP-OFF signal is correct.7. Check that the SDA-signal is correct. Pin 9 of IC1851.8. Check that the SCL-signal is correct. Pin10 of IC1851. Assembly Motor audio1. Check that the Vcc-voltages are correct.2. Check that the R and L input signals are correct.Pins 2(R) and 5(L) of IC0013. Check that the AUDIO MUTE signal is correct.4. Check that the SP-OFF signal is correct.5. Check that the IC001 output signals are correct.Pins 10(L) and 7(R).