Sharp FO-2600 Service Manual page 109

IC19, 20: VHIHM514800J8 (Control PWB)
VHIHM514800J8
Cy 25] VSS
voo [2 27] vo7
—
voi 26] vos
+
voe [4 25] vos
ones a) woe
ne [6 [23] CAS
WE [7 22] OE
RAS [6] 21] NC
aoe 20} as
Ao [0 [19} a7
at Tay 18} AG
A2 [12 47] AS.
AB [13 16] Ad
vce [14 15] VSS.
PIN DESCRIPTION
V00-1/07 | DATA WO
RRS
LOW ADDRESS STROBE
OUTPUT ENABLE
POWER (+5V)
CONNECTION
BLOCK DIAGRAM
RAS
CONTROL CIRCUIT
VO3 BUFFER
= |
contraencut SonteGrencint
107 106 108 tos
VO0 BUFFER V/O7 BUFFER | | 1/06 BUFFER | | 1/05 BUFFER | |/04 BUFFER
ROW ADDRESS BUFFER
eee ees
.
A A
fe Fa
z=} iS Fy | 1S) lx} let 1S) lz
ale i ' ANNGRGNEIAE
Sse l s i < i s hiey 3 SI<\g IGS leis /<isicis|<1s
<e14i<lo < a\< © < [a] Rate} <
us] O8 fs | fu Ls fra o Fg Fed Pg savy Fv Fv Fe Pn eg FP
Fed ed Pag ead eg io 2/0191 12/9/90 la l¥laiolo
2 isl2|>|2 > |2 Fd ole 2/3/21 >12|> [2 |S i4 > (2
Fd Fogg eg Prd Frog a Ferg Fog fer Rede Fodor Fc Eg Ey Fg
alaieiSle ta 9/2 o BIS sl@IS/2/5|2 18416 1@
& Blais fi a8 g Fede Cod bed ad ded Ce eC Fro
a l=iz|p (lela bans 4 a|=l2/oz|2|c|2/2/o|z|2l0
si by a
EJ
ROW DETECTOR & PERIPHERAL CIRCUIT
TTT
ce =?
lo IS io a o a
z 2 = & z z
has us cs) us au ee -B F BL hd
ta z tH u a [ca
3) |) 2 3 & 3 3
ts fe ts & a tf
a
COLUMN ADDRESS BUFFER
A0~Ag
ADDRESS A0-AS
FO-2600TH/SG
FO-2600GUW/GH