Read Sharp XG-NV2E (serv.man5) Service Manual online
3
XG-NV2U/E/M
SUPPLEMENT
3. Repair procedure
Interconnecting 1:Production lot in December 1997
Fan Control PWB (Display; K9661DE without
√
.)
QCNW-4978CEZZ
QCNW-4979CEZZ
QCNW-4982CEZZ QCNW-4983CEZZ
OUTPUT PWB
√
OUTPUT sub PWB
√
1
1
Trouble spot
Preparations
Procedure
Fan Control PWB
Output sub-PWB
DUNTK9567DE
DUNTK9567DE
Output PWB
DUNTK5926DE
DUNTK5926DE
Fan Control PWB marked "A"
QCNW-4980CEZZ (with UL tape)
QCNW-4981CEZZ
QCNW-4980CEZZ (with UL tape)
QCNW-4981CEZZ
When replace with the Output sub-
PWB
PWB
√
:
Fan PWB marked "A"
QCNW-4980CEZZ (with UL tape)
QCNW-5001CEZZ
QCNW-4980CEZZ (with UL tape)
QCNW-5001CEZZ
Both Output PWB
√
and
√
can be
used.
Disconnect the QCNW-4978CEZZ, -4979CEZZ, -
4982CEZZ and -4983CEZZ cables, and connect the
QCNW-4980CEZZ and -4981CEZZ cables.
4982CEZZ and -4983CEZZ cables, and connect the
QCNW-4980CEZZ and -4981CEZZ cables.
Disconnect the Output sub-PWB, Fan Control PWB,
QCNW-4978CEZZ, -4979CEZZ, -4983CEZZ cable,
and connect a new Output sub-PWB
QCNW-4978CEZZ, -4979CEZZ, -4983CEZZ cable,
and connect a new Output sub-PWB
√
, Fan Control
PWB marked "A", QCNW-4980CEZZ and QCNW-
5001CEZZ cable. Disconnect QCNW-4983CEZZ ca-
ble from Output PWB.
5001CEZZ cable. Disconnect QCNW-4983CEZZ ca-
ble from Output PWB.
Disconnect QCNW-4983CEZZ cable from the defec-
tive PWB , and connect to the new PWB.
tive PWB , and connect to the new PWB.
Interconnecting 2:Production lot in January 1998
Fan Control PWB (Display; S9661CE
√
.)
QCNW-4980CEZZ
QCNW-4981CEZZ
Output sub PWB
√
1
1
Trouble spot
Preparations
Procedure
Fan Control PWB
Output sub-PWB
DUNTK9567DE
DUNTK9567DE
Output PWB
DUNTK5926DE
DUNTK5926DE
Fan Control PWB marked "A"
When replace with the Output sub-
PWB
PWB
√
:
QCNW-5001CEZZ cable
Both Output PWB
√
and
√
can be
used.
Replace Fan Control PWB marked "A".
Connect a new Output sub-PWB
√
and QCNW-
5001CEZZ cable.
Replace the Output PWB as it is.
When replace with the Output sub-PWB
√
, disconnect the defective PWB from QCNW-
4981CEZZ cable, and connect the new PWB.
When replace with the Output sub-PWB
√
, disconnect the defective PWB from QCNW-
4979CEZZ cable, and connect the new PWB..
1
1
2
2
2
2
1
1
2
2
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