Sharp XV-Z7000U Anleitung Seite 37

Checking the output line
Are there video input signals at
TP1401, TP1402 and TP1403?
YES
Are there video output signals at
pins (14), (16) and (18) of IC1405?
YES
Are there video input signals at pins
(47) of IC1102, IC1202 and
IC1302?
YES
Are there clock input signals (MCLK) at
pins (54) and (55) of IC1102, IC1202
and IC1302?
YES
Are there output signals at pins (17),
(19), (21), (28), (30) and (32) of IC1102,
IC1202 and IC1302?
YES
Are signals going to the control signal
lines at pins (3) thru (21) of IC1103,
IC1203 and IC1303?
YES
Are signals coming from the control signal
lines at pins (22) thru (43) of IC1103
IC1203 and IC1303
YES
Are there input signals at SC1101,
SC1201 and SC1301?
YES
Check the R, G and B panels.
NO
Check P8001 and SC1701 for solder
cracks.
Are there video output signals at pins
(42), (44) and (46) of IC8024?
Are there digital input signals at pins
(1) thru (33) of IC8024?
IC8023 defective. Replace the PC
interface.
NO
Check IC1405, IC1403 and their
peripheral circuits.
Check IC1405, IC1403 and their
NO
peripheral circuits.
Check P8001 and SC1701 for solder
NO
cracks, and go to "Checking the
digital signal processing circuit".
Check IC1102, IC1202, IC1302,
NO
IC1401, IC1403, IC1405 and their
peripheral circuits.
Check P8001 and SC1701 for solder
NO
cracks, and go to "Checking the
digital signal processing circuit".
NO
Check IC1103, IC1203 IC1303
and their peripheral circuits.
NO
Check SC1102, SC1202, SC1302
and their peripheral circuits.
37
YES Check Q8013, Q8014,
Q8015 and their
peripheral circuits.
NO
YES
NO
XV-Z7000U/E
AN-Z7T
Check IC8024 and
IC8025.
IC8023 defective.
Replace the PC
interface.
IC8023 defective.
Replace the PC
interface.