Sharp XV-Z201E (serv.man29) Service Manual ▷ View online
33
XV-Z200U/E, XV-Z201E
DT-300
DT-300
Lamp does not light up.
Yes
Yes
Is the cooling fan rotating?
Check the socket
Is the pin (22) of P1701 "H" level?
No
Check the power circuit or the fan
circuit of the main circuit.
circuit of the main circuit.
Yes
Is the color wheel rotating sound
heard?
heard?
No
Check around IC9101 motor
driver IC circuit IC9102 and IC9003.
driver IC circuit IC9102 and IC9003.
No
Normal
Abnormal
Is the lamp discharging sound
heard?
heard?
Yes
Yes
Is DC 340V voltage applied across
the ballast power?
the ballast power?
Lamp failure to light up. Go to
"Formatter Unit Troubleshooting".
"Formatter Unit Troubleshooting".
No
Check the control line P-SAVE.
Is the level converted at IC8001,
B5 output, RN4904?
Is the level converted at IC8001,
B5 output, RN4904?
No
Yes
Check the power circuit.
Yes
Check IC8001 and the
peripheral circuit.
peripheral circuit.
No
Replace the color
wheel.
wheel.
Check the
formatter PWB.
formatter PWB.
No
Replace the lamp.
34
XV-Z200U/E, XV-Z201E
DT-300
DT-300
No
Yes
Does POWER LED flicker in red ?
Yes
Turn on the power again.
Yes
Is pin (9) of P1701 (P CON0) H?
Is the FAN voltage supplied?
No
Is it in the stand-by due to
an error?
an error?
No
This is the failure of
IC2002.
IC2002.
Yes
FAN_ERROR is being detected.
Check around Q1701 and around
pin (2) of IC2002.
Check around Q1701 and around
pin (2) of IC2002.
Yes
No
No
No
Is 13 V outputted to pins (17), (18)
and (19) P1701?
and (19) P1701?
Go to "Checking of Power Unit"
Check IC1708, IC1710 and
around these ICs.
around these ICs.
Yes
No
Is BU 5 V outputted from
IC1701?
IC1701?
Yes
Is Bu+6.5V outputted to pins
(12), (13) and (14) of P1701?
(12), (13) and (14) of P1701?
Check IC1701 and its
periphery.
periphery.
Yes
No
Is BU 3.3 V outputted from
IC1702?
IC1702?
Check IC1702 and its
periphery.
periphery.
Check IC1703 and its
periphery.
periphery.
Yes
No
Is BU 2.5 V outputted from
IC1703?
IC1703?
Check IC8001 and the circuit
around the IC.
around the IC.
Check of IC2002 and around I/O
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.
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