Read Sharp DV-700 (serv.man9) Service Manual online
DV-700S
DV-760S/H
DV-760S/H
10-4
No
No
Are the video signals outputted to the pins of
main unit connector CN801 and CN803?
CN803 5Pin Cb
CN803 7Pin Y
CN803 9Pin Cr
CN801 25Pin CVBS
CN801 27Pin C
CN801 29Pin Y
Yes
Check the line between the pins of main unit connector
CN801 and the pins of IC2007.
CN801 25Pin
→
IC2007 5Pin CVBS
CN801 27Pin
→
IC2007 2Pin C
CN801 29Pin
→
IC2007 12Pin Y
No
FLOW CHART NO.19 (For DV-760S/H)
Picture do not oper
ate nor
mally
.
Check the main unit. (Make sure that the IC201,
Q208-13 and IC205 peripheral circuit and control signal
V-MUTE and RGB CTL lines are on "L" level.)
Check the main unit.
(IC201, Q202-7 peripheral circuit.)
No
Check the peripheral circuit of Cb/V DRIVE circuit
IC2003 from the pin(4) of IC2007.
No
No
No
No
No
Set the disc on the disc tray.
Yes
Are the video signals shown above input into the
pins of IC2007?
IC2007 5Pin CVBS
IC2007 2Pin C
IC2007 29Pin Y
Yes
Are the video signals outputted to the specific
output terminal?
Are the composite video signals outputted to
the VIDEO OUT terminal (J2001)?
Are the luminance signals outputted to the
S–OUT terminal (J2002)?
Are the chroma signals outputted to the
S–OUT terminal (J2002)?
Are the Cb signals outputted to the Cb OUT
terminal (J2001)?
Are the Y signals outputted to the Y–OUT
terminal (J2001)?
Are the Cr signals outputted to the Cr OUT
terminal (J2001)?
Check the peripheral circuit of S–YC DRIVE circuit
IC2002 from the pin(14) of IC2007.
Check the peripheral circuit of S–YC DRIVE circuit
IC2002 from the pin(15) of IC2007.
Check the peripheral circuit of Cb/V DRIVE circuit
IC2003 from the pin(5) of CN803.
Check the peripheral circuit of Cr/Y DRIVE circuit
IC2004 from the pin(7) of CN803.
Check the peripheral circuit of Cr/Y DRIVE circuit
IC2004 from the pin(9) of CN803.
No
Yes
Are the video signal outputted to each pins of
IC2007?
IC2007 4Pin CVBS
IC2007 15Pin S–C
IC2007 14Pin S–Y
Make sure that the level of pins(9), (10) and (11) of
IC2007 is "L" level.
Check or replace IC2007.
Check the V-MUTE line.
Yes
No
Yes
Check the main unit.(IC801-3)
Are the audio signals outputted to the pins of main unit connector CN801?
CN801 1Pin FRONT-L
CN801 3Pin FRONT-R
CN801 5Pin REAR-L
Yes
Are the audio signals output to the specific
outputted terminals?
No
Are the audio signals outputted to the FRONT–L/R
OUT terminal (J2001)?
Are the audio signals outputted to the REAR–L/R
OUT terminal (J2001)?
Are the audio signals outputted to the CENTER/
SUB WOOFER OUT terminal (J2001)?
No
Check the peripheral circuit of AUDIO AMP. circuit
IC6001 from the pins(1) and (3) of CN801.
Check the peripheral circuit of AUDIO AMP. circuit
IC6002 from the pins(5) and (6) of CN801.
Check the peripheral circuit of AUDIO AMP. circuit
IC6002 from the pins(7) and (8) of CN801.
No
No
FLOW CHART NO.20 (For DV-760S/H)
Sound do not oper
ate nor
mally
.
Set the disc on the disc tray.
Yes
CN801 6Pin REAR-R
CN801 7Pin CENTER
CN801 8Pin SUB WOOFER
FLOW CHART NO.21
No
No
Are the video signals output to the pins of main unit
connector CN803?
CN803 11Pin B-OUT, CN803 13Pin G-OUT
CN803 15Pin R-OUT
Yes
Check the line between the pin (11) of CN803 and the pin
(5) of CN2303.
Check the line between the pin (13) of CN803 and the pin
(3) of CN2303.
Check the line between the pin (15) of CN803 and the pin
(1) of CN2303.
Check the line between the pin (14) of IC2007 and the pin
(7) of CN2303.
Check the line between the pin (15) of IC2007 and the pin
(9) of CN2303.
Check the line between the pin (4) of IC2007 and the pin
(11) of CN2303.
Although line output is possib
le
, 21PIN SCAR
T signal does not appear
. (The line output is possib
le)
Check the main unit.
(Make sure that the IC201, Q208-13 and IC205
peripheral circuit and control signal V-MUTE line is "L"
level and RGB CTL line is "H" level.)
No
No
Is specific signal input into the following terminals?
Are the B-OUT signal is input to the pin (5) of
CN2303?
Are the G-OUT signal is input to the pin (3) of
CN2303?
Are the R-OUT signal is input to the pin (1) of
CN2303?
Are the 21P-Y signal is input to the pin (7) of
CN2303?
Are the 21P-C signal is input to the pin (9) of
CN2303?
Are the 21P-CVBS signal is input to the pin (11) of
CN2303?
Yes
When "RGB" is selected with the signal selection
switch (S2001).
(1) Is the B-OUT signal output to the pin (7) of
21PIN SCART terminal (SC2201)?
(2) Is the G-OUT signal output to the pin (11) of
21PIN SCART terminal (SC2201)?
(3) Is the R-OUT signal output to the pin (15) of
21PIN SCART terminal (SC2201)?
(4) Is the VIDEO-OUT signal output to the
pin (19) of 21PIN SCART terminal (SC2201)?
Yes
Yes
When "S-VIDEO" is selected with the signal
selection switch (S2001).
(1) Is the C-OUT signal output to the pin (15) of
21PIN SCART terminal (SC2201)?
(2) Is the Y-OUT signal output to the pin (19) of
21PIN SCART terminal (SC2201)?
Yes
Is the VIDEO-OUT signal output to the pin (19) of
21PIN SCART terminal (SC2201) when the
"VIDEO" is selected with the signal selection
switch (S2001)?
Are the pins (7) and
(12) of IC2302 on "L"
level?
Check the peripheral circuit of B/G DRIVE circuit IC2303,
Q2306 to from the pin (5) of CN2303.
Check the peripheral circuit of B/G DRIVE circuit IC2303,
Q2304 to from the pin (3) of CN2303.
Is the R-OUT signal output to the pin (5) of SCART R/V
DRIVE circuit IC2304?
Yes
Yes
Is the C-OUT signal output to Q2301 and Q2303 of emitter?
Yes
Is the VIDEO-OUT signal output to the pin (4) of SCART
R/V DRIVE circuit IC2304?
Yes
Is the Y-OUT signal output to the pin (4) of SCART R/V
DRIVE circuit IC2304?
Yes
Is the VIDEO OUT signal output to the pin (4) of SCART
R/V DRIVE circuit IC2304?
Yes
No
Check the periphery of Q2305, Q2307, and Q2308.
Check the periphery of Q2301, Q2302, and Q2303.
Check the periphery of SCART R/V DRIVE circuit IC2304.
No
Check the periphery of SCART R/V DRIVE circuit IC2304.
No
Check the periphery of SCART R/V DRIVE circuit IC2304.
No
No
No
No
Is the R-OUTsignal output to the pin (6) of IC2302?
Is the CVBS signal output to the pin (5) of IC2302?
No
No
Is the C-OUT signal output to the pin (6) of IC2302?
Is the 21P-Y signal output to the pin (5) of IC2302?
No
Is the 21P VIDEO-OUT signal output to the pin (5) of
IC2302?
Are the pins (7) and
(12) of IC2302 on "H"
level?
No
Are the pins (7) and (12) of IC2302 on "L level?
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