Sharp XV-Z201E (serv.man12) Service Manual ▷ View online
35
XV-Z200U/E, XV-Z201E
DT-300
DT-300
Checking of SOG Circuit
Measure the pin (7) of IC5012
with an oscilloscope.
with an oscilloscope.
This is the failure of the SOG
synchronization separator circuit.
synchronization separator circuit.
Is there the Y signal including sync
signal?
signal?
Measure the pin (7) of IC5010
with an oscilloscope.
with an oscilloscope.
Is the composite synchronized
signal regenerated at proper timing?
signal regenerated at proper timing?
No
Is there output of the pin (25)
of IC3102?
of IC3102?
No
The SOG circuit is normal.
End.
Yes
Yes
Yes
Check around Q5002.
No
Input the S terminal (Y, C) signal to
INPUT 3. Select INPUT 3 with the
keys on the main body or the
remote controller.
INPUT 3. Select INPUT 3 with the
keys on the main body or the
remote controller.
Is the signal N358?
Does the picture appear?
Is the picture disturbed?
End.
Is the picture signal inputted to the
pins (5) and (7) of connector TC?
pins (5) and (7) of connector TC?
Yes
No
No
No
No
Yes
No
In the picture signal inputted to
pins (43) and (44) of IC3105?
pins (43) and (44) of IC3105?
Yes
Check the input side PWB .
Check IC3505 and the
peripheral circuits of the IC.
peripheral circuits of the IC.
Yes
Yes
Check of the S terminal input.
Check the Y, C signal
lines.
lines.
Check IC3105 and the
peripheral circuits of the
IC.
peripheral circuits of the
IC.
1
Memo
Only in case of N358, the noise reduction
function of IC3505 is used and the noise is
reduced, so it is inputted to pins (5) and (7)
of IC3105.
Only in case of N358, the noise reduction
function of IC3505 is used and the noise is
reduced, so it is inputted to pins (5) and (7)
of IC3105.
36
XV-Z200U/E, XV-Z201E
DT-300
DT-300
Feed the composite video signal to
INPUT 4. Select INPUT 4 using the
set's key or the remote controller.
INPUT 4. Select INPUT 4 using the
set's key or the remote controller.
Does the picture appear?
Is the picture disturbed?
End.
Is the picture signal inputted to the
connector TC (9) pin?
connector TC (9) pin?
Yes
Yes
No
No
Yes
Check the TERMINAL2 PWB.
No
Is the picture signal inputted to the
pin (1) of IC3105?
pin (1) of IC3105?
Yes
Check the VIDEO-IN signal
line of IC3503.
line of IC3503.
No
Is input coming to pins (1), (3) and (5) of IC3104?
Yes
Check IC3102 peripheral circuits.
No
Is output coming from pins (16), (18) and (20) of IC3104?
Yes
Check IC3104 peripheral circuits.
No
Is the picture signal inputted to pins (43), (48) and (54) of
IC6004 and the synchronized signal inputted to pins (30)
and (31)?
IC6004 and the synchronized signal inputted to pins (30)
and (31)?
Yes
Check around IC3104, IC6001 and IC6002.
No
Is each digital output coming on pins (64), (65), (66) and
(67) of IC6004?
(67) of IC6004?
Yes
Check IC6004 peripheral circuits.
No
Is output coming from IC8001, DPORT?
Check the formatter PWB.
Yes
Check IC8001 peripheral circuits.
No
Is it N358 signal?
No
Check around IC3501, 3505.
Yes
Is it PAL?
No
Check around IC3504, 3506.
Yes
Is it SECAM?
Check the color system, around IC3105. Others.
No
Check around IC 3105.
Malfunction of the color
system is thinkable.
Malfunction of the color
system is thinkable.
Yes
Checking of Video Input
Check IC3102 peripheral
circuits.
circuits.
1
3
No
Yes
Is synchronized signal
coming to pins (28) and
(29) of IC3102?
coming to pins (28) and
(29) of IC3102?
2
Memo
In case of N358, Y/C separates at IC3505 3 DY/C and inputted
to IC3105 (5) (7) pins.
In case of PAL system, Y/C separates at IC3506 3 Line COM
and inputted to (39) (41) of IC3105.
The video is outputted from (21) (22) (23) at color difference
from IC3105.
In case of N358, Y/C separates at IC3505 3 DY/C and inputted
to IC3105 (5) (7) pins.
In case of PAL system, Y/C separates at IC3506 3 Line COM
and inputted to (39) (41) of IC3105.
The video is outputted from (21) (22) (23) at color difference
from IC3105.
37
XV-Z200U/E, XV-Z201E
DT-300
DT-300
Input the DTV signal from INPUT 1.
Select INPUT 1 with the keys on the main body or the
remote control.
Select INPUT 1 with the keys on the main body or the
remote control.
Check IC3102 and around it.
Are pins (76), (77) and (78) of
IC3102 outputting and the signals
inputted to pins (73), (74) and (75)?
IC3102 outputting and the signals
inputted to pins (73), (74) and (75)?
Is the picture disturbed?
Is picture outputted?
Is the signal coming to the
P6001?
P6001?
Yes
No
Check of the DVI-TAN1 PWB.
No
No
Yes
No
Yes
Is the picture signal coming to
pins (3), (4) and (5) of IC3102?
pins (3), (4) and (5) of IC3102?
Check between the P6001 and
IC3102.
IC3102.
No
Yes
Yes
Check of component DTV input
End.
1
3
38
XV-Z200U/E, XV-Z201E
DT-300
DT-300
Checking of Sync Signal
Is the horizontal synchronized
signal on pin (6) of IC5001?
signal on pin (6) of IC5001?
Is the vertical synchronized signal
on pin (6) of IC5002?
on pin (6) of IC5002?
Is the synchronized signal is
outputted from IC5009, IC5005,
IC5006, IC5007 and IC5008?
outputted from IC5009, IC5005,
IC5006, IC5007 and IC5008?
Are the timing of both vertical and
horizontal synchronized signals
correct?
horizontal synchronized signals
correct?
Is the horizontal synchronized
signal on pin (30) of IC6004?
signal on pin (30) of IC6004?
Is the vertical synchronized signal
on pin (31) of IC6004?
on pin (31) of IC6004?
The sync signal is normal.
End of checking.
End of checking.
Yes
No
Check the PWB of the signal input
part.
part.
No
Yes
Yes
Yes
Yes
No
Yes
Check each IC and the peripheral
circuit of IC.
circuit of IC.
No
Check IC6001, IC6002 and IC
peripheral circuits.
peripheral circuits.
No
Set the signal source appropriately.
No
2
Is the signal generator (input
source) correct?
source) correct?
Yes
IC8001 and its periphery is
defective.
defective.
No
Is the horizontal synchronized
signal on pin (66) of IC6004?
signal on pin (66) of IC6004?
Is the vertical synchronized signal
on pin (64) of IC6004?
on pin (64) of IC6004?
Yes
Yes
No
Failure of IC6004 and IC
peripheral circuit.
peripheral circuit.
No
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