Heathkit IM-48, Manual

Page: 4 / 25

2;GBi i
6HBi *B;ZHMIZi "^AITi "Q;NdeBXi.TABNi+.i IYi ;i
^QIW^BiIQYZX^OBQZi NTGI@;NNdi @TO>IQIQGiZHBiD^Q@f
ZITQYi TEi ZHXBBi IOVTXZ;QZi ;QAi _YBD^Ni ;_AITi ZBYZi
AB`I@BYi %;XBD^Ni ABYIGQi ;NNTaYi ;i O;bIO^Oi IQi
VBXDTXO;Q@Bi DNBbI>INIZdi ;QAi ^ZINIZdi;ZiZHBiNTaBYZi
VTYYI?NBi @TYZi %;XBiBbBX@IYBAiIQiZHBi@TQYZX^@ZITQi
TDi ZHBiIQYZX^PBQZi aINNi>BiaBNNiXBa;XABAiaIZHiYZ;g
>NBi ZXT^>NBDXBBi YBX`I@Bi
(^Q@ZITQYi TDiZHBi;^AITia;ZZOBZBXiHIGHiYBQYIZI`IZdi
"%i 969.i ;QAi IQZBXOTA^N;ZITQi ;Q;NdeBXi ;XBi ;NNi
;`;IN;>NBi IQi TQBi IQYZX^OBQZi aHI@Hi GI`BYi ZHBi
TVBX;ZTXi ;i @H;Q@Bi ZTi O<MBi ;i `BXdi ZHTXT^GHi
;Q;NdYIYi TDi ;^AITiBW^IVOBQZiVBXDTXO;Q@BiaIZHT^Zi
ZHBi QB@BYYIZdi TDi @N^ZZBXIQGi ZHBi aTXM>BQ@Hi aIZHi
`;XIT^Yi IQYZX^OBQZYi ;QAi ;iYTPBZIOBYi>BaINABXg
IQGi Q^O>BXi TDi ZBYZi NB;AYi 2TaBXi T^ZV^Zi QTIYBi
G;IQi T`BXNT;Ai ;QAi IQZBXOTA^N;ZITQi@H;X;@ZBXIYf
[I@Yi @;Si >Bi ABZBXOIQBAi W^I@MNdi ;QAi ;@@_X;ZBNdi
^YIQGi [HBiZaTi YB[Yi TEiZBYZiNB;AYiD_XQIYHBAi;QAiZHBi
DNBc>NBi YaI[@HISGi YdYZBOi IQ@TXVUX;[BAi JQi [HBi
;Q;NdeBXi /TQ IQA_@[I`Bi NT;Ai KOVBA;Q@BYi TDii
i i ;SAii ;XBi >_IN[iIQi ;QAi @;Qi>Bi YBNB@ZBAi
DTXi <Sdi D_S@ZITQi >di XTZ;[IQGi ZHBi NT;Ai YBNB@ZTXi
YaI[@HiZTi ZHBi ABYIXBAi XBYIYZ;Q@Bi "i HIGHi IOVBAg
;Q@Bi VTYI[ITQi IYi ;NYTiVXT`IABAiDTXiYZ;GBZTYZ;GBi
;QAi T[HBXi HIGHi IOVBA;Q@Bi @IX@_IZi =;NdYBYi
-Tai ;QAi HIGHi DXBW^BQ@IBYi ;XBi GBQBX;ZBAi aIZHi
ZHBi IQYZX^OBQZi ;QAi ZHBdi @<Si >Bi Z;MBQi T^Zi YBV;g
X;ZBNdi DTXi ZBYZIQGi V_XVTYBYi TXi OIbBAi DTXi +i .i
PB;Y^XBOBQZYi
" %i 90-6.'6'3 i 6HXBBi YZ;GBYi ;XBiBOVNTdBA
ZTi VXT`IABiZHBi ;OT^QZiTDiG;IQi XBW^IXBAi ZTiGI`Bi;
i OINNI`TNZi D^NNiY@;NBiYBQYIZI`IZdi Z^>B
IYi @TQQB@ZBAi IQi ;i @;Y@TABi[dVBi@IX@^IZiaHI@HiVXTg
`IABYi `BXdi HIGHi G;IQi aIZHi XBN;ZI`BNdi NTaiQTIYB
NB`BNi 4IGQ;NiIYi;VVNIBAiZTiZHBi@TQZXTNiGXIAiZHXT^GH
ZHBi IQV^Zi YBNB@ZTXiYaIZ@Hi;QAi 969.iAB@;ABi6HB
EIXY\i H;NDi TDi ZHBiZ^>Bi;@ZYi;Yi;i@TQ`BQ[ITQ;Ni `TNZg
;GBi ;OVNZYi VN;ZBi NT;Ai IYi P;ABi ^ViTDi ZHB
VN;ZBi XBYIYZ;Q@Bi TDiZHBiYB@TQAiH;NDiTDiZHBiZ^>Bi ;QA
ZHBi i ,Ri XBYIYZTXi @TQQB@ZBAi ZTi $i 9TN[;GB
;OVNKDIBAi >diZHBiDIXYZiH;NDiTDiZHBiZ^>BiIYi @TQQB@ZBA
AIXB@ZNdiZTiZHBi@;ZHTABiTDiZHBiYB@TQAiH;NDi@;^YIQG
IZiZTiYaIQGi Bb;@ZNdi ZHBi Y;OBi;OT_QZi );KQiIQi ZHB
YB@TQAi H;NDi TDiZHBiZ_>Bi IYi;@@TOVNIYHBAi>diBDDB@g
ZI`BNdi [dIQGiZHBi GXIAi [Ti GXT_QAi [HXT_GHi ;ii hDA
@TQABQYBXi ;SAiIYTN;[IQGi[HBiGXIAiDXTOi[HBi@;ZHTAB
aIZHi ;i i,RiXBYIYZTXi6H_YiZHBiGXIAiXBO;IQYi ;Z
;i DIbBAi VTZBQ[I;Ni aHINBi [HBi @;ZHTABi `TNZ;GBi IY
`;XIBAi @;_YIQGi [HBi[^>BiZTi;@Zi;Yi[HT_GHiZHBi GXIA
VTZBQZI;Ni aBXBi @H;QGIQGi 1BX;ZITQi IYi O^@HiZHB
Y;OBi;Yi ;i GXT_QABAi GXIAi ;OVNIDIBXi -T;AIQGiDTX
ZHBiYB@TQAi H;NDiTDi ZHBi "6i IYi VXT`IACAi>di;i
,Ri XBYIYZTXi 'QBXGdi DXTOiZHBi YB@TQAi H;NDiTDiZHB
"6i IYi@T^VNBAi ZHXT^GHi ;ii hDAi@TQABQYBXiZT
ZHBi GXIAi TDi ZHBi OBZBXi ;OVNIDIBXi TQBH;NDi TDi;
"8i Z^>Bi "AAIZITQ;Ni @_XXBQ[i ;OVNIDI@;ZITQ
Z<MBYi VN;@Bi IQi ZHIYi Z^>Bi ;QAi T_]V^[i BQBXGdi IY
@T_VNBAi ZTi ZHBi OBZBXi XB@[IDIBXi ZHXT_GHi;ii hDA
@;V;@IZTX
6aTi AITABYi ;XBi^YBAiIQi;iH;NDa;`Bi>XIAGBi@IX@_I[i
[Ti D_XQIYHi @_XXBQ[i ETXi[HBii OI@XT;OVBXBi
OB[BXi %^XXBQ[i XB[_XQYi ZTi GXT_SAi [HXT_GHi ZHBi
i XBYIY[TXYi ;SAi [HBi @;NI>X;ZITQi @TQ[XTNi
aHI@Hi @TOVNB[Bi[HBi>XIAGBi 5IQ@Bi [HBii XBg
YIY[TXYi XB[_XSi [TiZHBi@;[HTABi TFi [HBi 969.i IQV^[i
Y[;GBi IS`BXYBi DBBA>;@Mi IYi ;VVNIBAi %;NI>X;[ITQi
IYi T>[;IQBAi >di ;AL_Y[JQGi [HBi @;NI>X;[ITQi @TQ[XTNi
aHI@Hi `;XIBYi [HBi @;ZHTABi XBYIY[;Q@Bi"i @H;QGBi
TDiXBYIY[;Q@Bi IQi[HBi@;ZHTABiTDi[HBiIQV_[iY[;GBiaINNi
@H;QGBi[HBi;OT_Q[iTDiDBBA>;@Mi;SAi@TQYBW_BQ[Nd i
[HBi G;IQi
.TY[i @XdY[;Ni AITABYi H;`Bi;iQTQNIQB;Xi@H;X;@ZBXg
IY[I@i ;Zi NTai `TNZ;GBi NB`BNYi @;^YIQGi QTSNIQB;XI[di
TXi VTTXi AB@;AIQGi ZTi>Ci B`IABQZi;[i[HBiNTaiBQAi TDi
[HBi OB[BXi Y@;NBi %TOVBQY;[ITQi DTXi ZHIYi @H;Xg
;@ZBXIY[I@i IYi VXT`IABAi IQi @;YBi IZi YHT^NAi >B@TOBi
B`IABQ[i &B[B@[TXi QTQNIQB;XIZdi IYi @TOVBQY;ZBAi
DTXi >diO;MJSGi [HBiOBZBXi OT`BOBQZi QTQNIQB;Xi IQi
[HBiTVVTYIZBi AIXB@[ITQi "QT[HBXi AITABi;QAi;i`;XIg
;>NBi XBYIY[TXi ;XBi YH_SZBAi ;@XTYYi ZHBi OBZBXi
;NNTaIQGi ;AL_Y[OBQ[i TDi OBZBXi NIQB;XIZdi ZH^Yi
VXT`IAIQGi Bb@BNNBQ[i AB@;AIQGi ;@@^X;@di
:i"66.'6'3!i.B;Y^XBOBQZiTDi VTaBXi XBW^IXBYi
[HBi _YBi TDi [HBi#%i 97.i VXB`IT_YNdi ABY@XI>BA i
;QAi VXB@IYITQi @TOVBQY;[ITQi QB[aTXMYi ZTi@TXXB@Zi
ZHBi `TN[;GBi IQi XBN;ZITQi [Ti [HBiVTaBXiAIYYIV;ZBAiIQi
ZHBi HIGHi a;[[;GBi NT;Ai XBYIY[TXYi 5IQ@BiZHBiVTaBXi