(1) Check the liquid level detection of flexible cable is
connected well, check the conductivity
(2) Check the liquid level detection signal line (P042) is in
good connection or not, check conductivity
(3) Check whether the liquid level detector is well
connected or not
(4) measurement of P042 in the 8 (surface), 9 (touch) pin
voltage is normal or not.
When liquid surface is detected, P042-8 surface is high
level
When liquid surface is not detected, P042-8 surface is low
level
When touches, the photo sensor blocks, P042-9touch is
high level,
No touch, the photo sensor is without shelter, P042-9touch
is low level.
(5) Check the P042's 8 (surface), 9 (touch) feet whether 7
(+5 v) is short-circuit, so that potential is pulled up.
(6) Check the liquid level detection board is working
regularly, when the status is not , check the circuit board.
Unplug the surface detection panel J6, J7 on the flexible
cable, measuring J6, J7-level state of the foot, right to left
(J7: 1 empty, 2touch, 3surface) (J6: 1 ground, 2 air, 3 +5
v, 4 blank)
When liquid level is detected, J7-3surface is high, and the
on-board indicator lights;
When liquid is not detected, J7-3surface is low, on-board
light goes out;
When there’s touch, the photo sensor blocks, and
J7-2touch is high;
When there’s no touch, the photo sensor is not blocked,
J7-2touch is low.
8-5
Reagent probe
abnormal
When
Sample&reage
nt probe
changes its
direction to
cup side, and
couldn’f find
reaction disk’s
position.
(Sample&reag
ent probe
swings can not
be set back as
zero)
window, execute "mechanical movement". Observe
sample&reagent probe running status.
Malfunction 1: Sample&reagent probe couldn’t sway.
Solution:
1. Manually sway the mechanism, need mechanical repair
if resistance is big
2. Check both ends of the motor connector are connected
well
3, Check whether the conductivity of the conductor’s lead
are good
4, Check the sample&reagent disc motor drive circuit
board
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