Sharp PC-1261 - 10. CIRCUIT DIAGRAM; CPU, Peripheral, and Memory Circuitry

-
PC - 1260
PC-1261
-10-
H
G
F E
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OPTION I NTERFACE
11 P I N CONNECTO R
A II c hip t ype transisto r is
2SC28 1 2 ( L5 ,L6 )
:1:1 c11 i" - l' L 21:lltll7'1/ll;, . , f(1)h£ • ~
( B $: : ' f ill )
Diode L 2 : F or OT H E R COUN TRY
( Except for JA P AN )
~o t e ) ;t 7- "Y-f ~7 :.-- 0 .A~ 'i:i:T2SC2812
( L 5, L 6 )
. c___ : _ :~ ~
. ACK
D I N
MT o u t 1
: 613256FG53
BUS Y
3 2K RO M
D o ut
I
I
L _
l ()()K n
ter m i na l i S i g n :! na me I
I MTo u t2
G N D
4 . 7Kn
) ()() Kn
' '
L.. - - - - - - - - -- - - - - - - - - __ .J
1 00 PFX 2
MT i n
A O
SC61860A ll
ESR-H
C P U
I A4
0 . lµF ~ -+-+--+-+--+- +,
G ND
Lith i um
batter
-=- C R 203 2
...__. -l-+~ 3 - .3 - µ _ F _ V ~ M xz
v .,
VR
20Kn
~--> - -~~---------
Vue
! B l
L2 22 .n