52
DV-NC70/W
DV-NC70X/RU
Is the E-E signal applied to the pin(4) of IC2003?
No
No
No
No
No
No
No
Check the DVD-H line.
No
Yes
Yes
Yes
Are the video signals shown above outputted into
the pins of output terminal?
Are the composite video signals outputted to the
VIDEO OUT terminal (J1202)?
Are the luminance signals outputted to the
S-OUT terminal (J1201)?
Are the chroma signals outputted to the
S-OUT terminal (J1201)?
Are the luminance signal outputted to the
COMPONENT Jack (J1204)?
Are the colour difference (CB) signal outputted to the
COMPONENT Jack (J1204)?
Are the colour difference (CR) signal outputted to the
COMPONENT Jack (J1204)?
Check the VIDEO OUT terminal (J1202) and the
line between the pin(2) of IC2003 and the VIDEO
OUT terminal (J1202).
Check the S-OUT terminal (J1201) and the line
between the pin(28) of IC2001 and the S-OUT
terminal (J1201).
Check the S-OUT terminal (J1201) and the line
between the pin(33) of IC2001 and the S-OUT
terminal (J1201).
Check COMPONENT Jack (J1204) and the line between
pin(28) of IC2001 and COMPONENT Jack (J1204).
Check COMPONENT Jack (J1204) and the line between
pin(22) of IC2001 and COMPONENT Jack (J1204).
Check COMPONENT Jack (J1204) and the line between
pin(19) of IC2001 and COMPONENT Jack (J1204).
Check line between pin(31) of IC2001 and pin(4) of
IC2003.
Is 5V applied to the pin(3) of IC2003?
Are the DVD-H at the pin(1) of IC2003 on "H" level?
*1
*2
FLOW CHART NO.10
Set the disc on the disc tray.
Are the digital audio interface signals outputted
to the pins of main unit connector CN3202?
CN3202 pin(9) L OUT
CN3202 pin(11) R OUT
Check the main unit. (IC3801, IC3601)
Check the line between the pins of main unit
connector CN202 and the pins of IC6004.
CN202 pin(3)
→
IC6004 pin(3) L OUT
CN202 pin(1)
→
IC6004 pin(5) R OUT
No
No
Yes
Yes
Yes
Yes
Sound do not oper
ate nor
mally
.
Are the digital audio interface signals inputted
to the pins of IC6004?
IC6004 pin(3) L OUT
IC6004 pin(5) R OUT
Yes
No
Are the audio interface signals outputted to the
pins of IC6004?
IC6004 pin(1) L OUT
IC6004 pin(7) R OUT
Check the PC 9V line.
Check or replace IC6004.
Is 9V applied to the pin(8) of IC6004?
No
No audio from Hifi E-E (VCR). Check this item.
Are the audio signals outputted to the specific
output terminals?
Is the DVD audio signal outputted to the
AUDIO OUT terminal (J1202)?
No
No
No
Check the line between the pins of IC6004 and the
pins of IC651, audio mute (Q6007~6008).
IC6004 pin(1)
→
IC651 pin(3) L OUT
IC6004 pin(4)
→
IC651 pin(1) R OUT
No
Yes
Are the audio signals outputted to the specific
output terminals?
Is the DVD audio signal (L) outputted to the DVD
AUDIO OUT (L) terminal (J1205)?
Is the DVD audio signal (R) outputted to the DVD
AUDIO OUT (R) terminal (J1205)?
Check the DVD AUDIO OUT (L) terminal (J1205)
and the line between the pin(1) of IC6004 and the
DVD AUDIO OUT (L) terminal (J1205).
Check the DVD AUDIO OUT (R) terminal (J1205)
and the line between the pin(7) of IC6004 and the
DVD AUDIO OUT (R) terminal (J1205).
Are the audio interface signals inputted to the
pins of IC651?
IC651 pin(3) L OUT
IC651 pin(1) R OUT