Fukuda Denshi VaSera VS-1500, Service Manual

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Chapter 6 Troubleshooting
6-18
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6.12 Other Functions
No. Symptom Check Remedy
Set the time. Set the time in the [Clock Setting]
window in initial
setting/maintenance. 1 Date/time is not indicated
correctly.
Check the voltage of the backup
battery in the [Status] window of
the maintenance menu. If the battery is lower than 2.2V,
replace it.
Check [BP/Pulse Test Condition
Setting] and [ECG Setup]
Æ
[ECG
Common Setup].
Set sound to [On] and voice
guidance to [ON].
Check if the speaker cable is loose
or broken. Connect the cable correctly.
Replace the speaker cable if
broken.
2 The buzzer and key
sound cannot be heard.
Check signal output during sound
output.
(Pin 1 on CN3)(
☞
10.1.1.A1)
If the output fluctuates, the speaker
is defective and should be
replaced.
Check [Energy Save Setup] in the
maintenance menu. Set [Backlight Off When Display
Closed] to [On].
Check if the LCD_SW cable is
loose or broken.
(
☞
8.1.6)
Connect the cable correctly.
Replace the LCD_SW cable if
broken.
3 The backlight does not go
off even when the display
is closed.
Check the signal from pin 5 on
CN8 when the screen is closed. (
☞
10.1.1.A1)
If the signal is "L", the LCD_SW is
defective and should be replaced.