DV-620 (serv.man3). - Section 2 - Test mode, Troubleshooting - page 13-19 - Sharp DVD Service Manual (repair manual). Page 7

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DV-620H
DV-620S
19
FLOW CHART NO.21
Set the disc on the disc tray.
Check the main unit.
(IC201, Q209, Q210, Q211 periphery circuit.)
Make sure that the level of pins(9), (10) and (11) 
of IC2002 is "L" level. 
Check the V-MUTE line. (Collector of Q2014)
Check or replace IC2002.
Yes
Are the video signals outputted to the pins of main
unit connector CN802?
CN802 1PIN CVBS
CN802 3PIN S-Y
CN802 5PIN S-C
Are the video signals shown above input into
the pins of IC2002?
IC2002 12PIN CVBS
IC2002   5PIN S-Y
IC2002   2PIN S-C
Are the video signal outputted to each pins of
IC2002?
IC2002 14PIN CVBS
IC2002   4PIN S-Y
IC2002 15PIN S-C
Check the line between the pins of main unit
connector CN802 and the pins of IC2002.
CN802 1PIN 
→ 
IC2002 12PIN CVBS
CN802 3PIN 
→ 
IC2002   5PIN S-Y
CN802 5PIN 
→ 
IC2002   2PIN S-C
Check the peripheral circuit of S-C/V DRIVE circuit
IC2003 from the pin(14) of IC2002.
Check the peripheral circuit of S-Y DRIVE circuit
IC2005 from the pin(4) of IC2002.
Check the peripheral circuit of S-C/V DRIVE circuit
IC2003 from the pin(15) of IC2002.
Are the video signals outputted to the specific
output terminal?
Are the composite video signals outputted to the
VIDEO OUT terminal(J2002)?
Are the luminance signals outputted to the
S-OUT terminal(J2003)?
Are the chroma signals outputted to the S-OUT
terminal(J2003)? 
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Picture do not oper
ate nor
mally
.
FLOW CHART NO.22
Check the main unit.(IC601)
Check or replace IC6001.
Check the main unit.(IC504)
Check or replace IC6001.
Check the peripheral circuit of AUDIO DAC
(IC6001), AUDIO AMP.(IC6004) and AUDIO MUTE
(Q6007-8) circuit.
Set the disc on the disc tray.
Check the line between the pins of main unit
connector CN801 and the pins of IC6001.
CN801 3PIN 
 IC6001  5PIN AMCLK
CN801 4PIN 
 IC6001  3PIN ABCLK
CN801 5PIN 
 IC6001  1PIN ALRCLK
CN801 6PIN 
 IC6001  2PIN AOUT0
Check the line between the pins of main unit
connector CN801 and the pins of IC6001.
CN801 10PIN 
 IC6001 26PIN ADAC DA
CN801 11PIN 
 IC6001 27PIN ADAC CK
CN801 12PIN 
 IC6001 28PIN ADAC L
CN801 16PIN 
 IC6001 22PIN RSTO I
Are the digital audio interface signals outputted 
to the pins of main unit connector CN801?
CN801 3PIN AMCLK
CN801 4PIN ABCLK
CN801 5PIN ALRCLK
CN801 6PIN AOUT0
Are the digital audio interface signals inputted 
to the pins of IC6001?
IC6001 5PIN AMCLK
IC6001 3PIN ABCLK
IC6001 1PIN ALRCLK
IC6001 2PIN AOUT0
to the pins of main unit connector CN801?
CN801 10PIN ADAC DA
CN801 11PIN ADAC CK
CN801 12PIN ADAC L
CN801 16PIN RSTO I
to the pins of IC6001?
IC6001 26PIN ADAC DA
IC6001 27PIN ADAC CK
IC6001 28PIN ADAC L
IC6001 22PIN RSTO I
Are the audio signals output to the specific
outputted terminals?
Are the audio signals outputted to the FRONT
-L/R OUT terminal(J2002)?
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Sound do not oper
ate nor
mally
.
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