3 - 15
5
.
TROUBLESHOOTING OF AUTOFOCUS
This troubleshooting corresponds to "4. Error Messages”. If an error message appears during autofocus adjustment, use this
troubleshooting after referring to “4. Error Messages”.
Can zoom be operated
from the remote control
Check the remote control
and IR receiver section
(1) NO ZOOM AND FOCUS OPERATION
Yes
Yes
Yes
No
No
No
OK
OK
OK
OK
NG
NG
NG
NG
Note: Check the items marked by pressing the manual
focus FAR and NEAR switches alternately.
Is manual focus
provided
Can switching be done
between manual focus
and autofocus
IC1104-92: PULSE
TL1322: 5V
• Check the 5 V line
IC1104-93: PULSE
• Focus switches faulty
• R1178 faulty
• R1185 faulty
• C1117 faulty
• Focus swiches faulty
• R1179 faulty
• R1186 faulty
• C1118 faulty
Check the focus
switches.
Focus switches faulty
Check the zoom switch unit.
1
2
1
OK
NG
NG
OK
Note: Check the items marked by turned power ON.
TL1306: PULSE
TL1301-TL1304:
PULSES
Lens block faulty
OK
OK
NG
NG
IC1301-3: 3V
IC1301-4, 11, 23: 5V
• C1302 faulty
• C1303 faulty
• C1304 faulty
Check the 3V line.
Check the 5V line.
OK
OK
NG
NG
TL1325: 12V
IC1301-16, 18: PULSES
IC1104 faulty
Check IC1104 and EEPROM.
2
3
4