46
BEFORE REQUESTING SERVICE
BEFORE REQUESTING SERVICE
TROUBLESHOOTING
When an error is found, review the Check List below.
If, after following the instructions below, you still have problems or if the problem does not fall
into any of the categories below, contact your dealer or TOPCON (see the back cover).
Check List
WARNING
To avoid electric shock, do not attempt disassembling, rebuilding and/
or repairs on your own. Ask your dealer for repairs.
WARNING
Do not remove the external covers from the main unit, chinrest unit or
power supply unit except for the lamp house cover. You may receive
an electric shock.
Problem
Condition
Check
Page
Periphery of photographed
image is dark.
• Operation distance (alignment) is incor-
rect.
Adjust operation distance (alignment).
29
• Focusing is incorrect.
Adjust focus.
35
• Patient's pupil is not large enough.
Darken room and thoroughly dilate
patient's pupil.
30
Photographed image is
flared all over. (The whole
image is covered by light.)
• Operation distance (alignment) is incor-
rect.
Adjust operation distance (alignment).
29
• Focusing is incorrect.
Adjust focus.
35
• Opacity
in
patient's
eye
Flare caused by opacity cannot be
removed.
---
Photographed image is
whitened.
• Patient blinked the moment the photo-
graph was taken.
Take another picture.
---
Photographed image has
a dim white spot.
• Objective lens is stained.
Clean lens.
60
• Eyelashes were in patient's eye the
moment the photograph was taken.
(Dim light was seen at screen bottom
the moment the alignment was done.)
Let patient open eye wider and take the
picture again. If not wide enough, open
the eyelid (i.e., Take picture holding eye-
lid open).
29
Photographic image is
dark all over.
• Flash level is insufficient.
Adjust the flash level with the flash cor-
rection switch or flash selector switch.
15
• Xenon lamp set screw is loose.
Fix xenon lamp securely.
55
• Xenon lamp has served its life.
Change xenon lamp.
55
Illumination lamp does not
turn on.
• Power save function is on.
("SLEEP" is indicated on the control
panel.)
Press photography switch and cancel
power save function.
22
• Lamp terminal is loose.
Refasten lamp terminal.
54
• Fuse is burnt.
Change fuse.
57
• Lamp is burnt.
Change lamp.
54
• Lamp house cover is not set.
Set Lamp house cover properly.
55
The external fixation tar-
get does not light/blink.
• Fuse is burnt.
Change fuse.
57
Содержание TRC-50DX
Страница 1: ...INSTRUCTION MANUAL RETINAL CAMERA TRC 50DX TRC 50DX ...
Страница 2: ......
