Operational FlowChart

HT1330

6

August 10, 2000

No t e :

S 1 /S 2 : tw o k e y p r e s s e d s y n c h

S 1 / S 2/ S 3 : t hr ee k e y pr es s ed on t i m e

S 3 > 5 s : S 3 k e y i s p r e s s e d m o r e th a n 5 s

S 1 , S 2 , S 3 : th e k e y i s p r e s s e d

* : R e p r e s e n t s 1 H z fl a s h

#: R epr es ent s 2H z f l as h

Po w e r o n

S3

S3 > 5 s

A f t e r 2 se co n d

YE S

YE S

NO

E n t e r t he c o unt er M o d e

18: 8 8

* 0: 00

0: 01

Al a r m t e s t

C ount _ dow n

ti m e s e t ti n g

YE S

NO

* 12: 59

0: 0 0

YE S

S 1 /S 2 to B

S 1 /S 2 / S 3 t o A

S 1 t o a dj us t hou r - di gi t

S 2 t o a dj us t m i n ut e- di gi t

S 1 t o a d j u s t hou t - di gi t

S 2 t o a d j u s t m i n ut e- di gi t

C ount _ up M ode

C ount _ dow n M ode

OP

YE S

0: 00

NO

R eal t i m e pl ay i ng m ode

A

B

S1 / S 2

NO

S2

NO

#19 : 5 9

C ount _ dow n t i m e p l a y i ng

P i e z o s ounds 2 s ec onds f or a l a r m t es t

A l l s e gm ent on f o r L C D t e s t

R eal t i m e

se t t i n g

S1 / S 2

S3

S3

NO

A l a r m bi bi

YE S

A n y ke y t o

pr es s

B onded

opt i o n

S1 t o d i s p l a y

t he r eal t i m e

S 3 fo r s ta r t /

s t op c ount er

S 2 to s h o w th e

c ount num ber

C ount - u p

pl ay i n g

S1 , S3 ,

S1 / S 2 , S 1 / S 2 /

S3