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TECHNICAL GUIDE
tRoUBlEshootiNG
Symptom
Movement
The watch stops operat-
ing.
The current consump-
t i o n f o r t h e w h o l e
movement exceeds the
standard value.
The current consump-
t i o n f o r t h e c i r c u i t
blo c k alone exc e ed s
the standard value.
Exterior
The crown falls off.
parts
The current consumption
exc e ed s the s t andard
value.
Small amount of water/
blur inside of the glass
persists.
Possible causes
The battery has been depleted.
The hour wheel and the pinion
of the minute wheel are not
properly engaged. (Or the teeth
of the hour wheel and/or minute
wheel have been broken.)
The hooking portions of the
circuit block cover are not
properly engaged, resulting
in poor conductivity.
The coil is broken.
One or more w he els have
been contaminated with dirt,
dust or other particles.
An excessive amount of oil in
the movement has caused ad-
hesive forces among the parts.
(wringing)
Dirt, dust or foreign particles
are adhered to the movement.
The driving pulse is generated
in order to compensate the
excessive load applied to the
wheels. (The oil has deterio-
rated, leaked or run out.)
The light from outside the
movement is af fec ting the
measurement.
T here is a defe c t in the IC
( integrated cir cuit ) .
The winding stem is not se-
curely installed. (The setting
lever an d yo ke ar e dis e n -
gaged.)
A n e x c e s s i v e l o a d i s b e -
ing applied due to fric tion
a m o n g t h e h o u r, m i n u t e
and second hands.
Water resistance is deterio-
rated. The watch has been
subjected to water pressure
that exceeds the guaranteed
degree.
18/18
Copyright©2012 by
Cal. 6N76A
Solutions
Measure the battery voltage.
Replace the battery with a
new one.
Check the relevant parts, and
replace the damaged parts
with new ones.
Securely attach the hooks of
the circuit block cover to the
main plate.
Measure the coil block resist-
ance. Replace the coil with a
new one.
Remove dirt or dust and clean
the contaminated wheels. Be
careful so as not to damage
the teeth of the plastic parts
while cleaning.
Remove dir t, dus t or for-
e i g n p a r t i c l e s a n d c l e a n
the movement.
If the current consumption for
the circuit block alone is with-
in the standard value range,
overhaul and clean the move-
ment par t s, and then make
the measurement again.
Shut out the light, and make
the measurement again.
Replace the circuit block with
a new one.
Check the main plate, wind-
ing stem, setting lever and
yoke. Replace the defective
parts with new ones.
Adjust or remount the rel-
evant hands.
Investigate the causes to take
necessar y measures, while
cleaning inside of the watch.
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