M A r N C T R C U TAT S S E M B L (yO 3 4 9 0 - 6 6 5 0 t )

-

T U R N O N C L E A R

C I R C U I T

W J

+5V FROM< ,"\ ö - +5V TO LOGTCCRCUtTS poweä - su . pplV

Q U A L I F I E RM U L T IP L E X E R

H M O E

H M Q C I H M Q A

I NS T R U M EN T

 

 

- O N

 

T U R N

T U R N .O N

I

T

O

I

I

A I J T ( N )

l.-i3Bl,"J-r

 

 

A I J 5

( F )

L__J

 

 

(LSCK)STATECLOCK s FROMU4 (8) --:

l-rua--'I xma--!

F R O M - J H M Cus RoMl Hr4e_-1

I nne--rLHur---

8, r r , r{e F U N C T I O N A H F U N C T I O N B H

a x

l'naHcr

FROM U2I1 R A N G E8 H

L R A N G EC H

FROMI,J6ENO OF READING(LEOR) F R O M U II M A I NT I M E8 I T B H ( H M T B )

r

I M E C O U N I ( L T C I)

T t M EC O U N 2T ( H T C z )

I

r l M E c o u N r 4 ( H r c 4 )

6 1

T r M EC O U N T8 ( H T C 8 )

I

I r r u e c o u N r 6 ( H T c r 6 )

I

L T I M E C O U N T3 2 ( H T C 3 2 }

( H I F A ) - ( H t F E ) -

tH I R A ) - (H t R 8 ) - (H r R C )-

HMGFROM- u9 il3) ROM

(LSCK}STATECLOCK_

5

FRoM ua (8)

 

L M Q D

R 5 0

6 . 8 K

l 4 e x r E N c o DLE ( L E X E )

l l , l 4 x o r - o L ( L H L o )

i l , l 6 a u r o R A N GHE( H A U r )

Z E R OD E T E CHT( H Z D T )

M A I N T I M E 8 I T C H ( H M T C )

+ 5 V

H M O B

HMOCI HMoA

 

 

[ -

M A N N O R M o P E N L ( L M N O )

 

 

S A M P L E R A I E C H { H S S C )

 

 

I

l l

<

I

s a M P L E R A T L B H ( H S s B l

 

 

S A M P L E R A T E A H ( H S S A )

R 5 t

 

I

6.8K

 

l,rltt ronu cLosED (LMNc)

 

L

 

 

 

D A T A F L A G H ( H O F L )

H M O E

H M O O

HMOE

( H S C K )

. 4 .

STATECLOCK

F R O MU 4 ( 9 ) +5V

6

NOTES.

I . IF INSTRUMENTREFUSESTO UPRANGEOR

DOWNRANGEIN AUTO MODE.CHECKFOR

DEF € CTIVEU2I .

2 . IF INSTRUMENTCOUNTSBY EVEN NUMB IN THE TWO LEASTSIGNIFICANTDIGITS I

THE 0c OR OHMSAUTOMODE,CtO SHOU 8E REMOVEOOR REPLACEDWITH A VALU

L

NOT TO EXCEEDlOOOpF .

C O P Y R I G H T1 9 7 ? 8 Y H E W L E T T . P A C K A R D

C O M P A N Y