Cobra 29 WX NW ST Circuit Diagram - Page 1

6 5 4 3 2 RECEJV1ED 6 MAY 1998 REVISION RECORD CIRCUIT DIAGRAM FOR COBRA 29WST 00,/ , 0 5203-1 5203-20_ NE/ANL UPDATE TO ECN NO. APPROVED: DATE: ANL ANL KEPC-258 TRI LC1675L 024 11281 NB AMP Itt 2.2Y CS 200P/SL 7 TIN LA7331 1017C/St L RI I C2 - TR2 1875L 00.4oi-6-1C03 LC9430 03 10K 05 10K I C4 2001/01 R16I rr7 "1 m R2 ---12-1M • /77 m • 010 12 2:,01,;(,,. z! r' T 1-2 ! i! 103 :4;1-, y 1 1X4146 I G --C11 74 - -r- • ! II ?, - I! ' /77/77r77 /77i //i1/ /77 5.51 PT ARP, TR7 1.010741. 1ST WIRER FET1 25019247 L3 H Cu I rL4 15 R1.61651152 771 ill -'! _ L 7 V, ITA ; 51 0- )7rri /74 its IOK 015 100 017 .330 1101 I _LSn. £ I -7 L -0-I - 17 471 m L6 I -r- C07.01 IRS l09450 1130V/01 RS 1001 55.z; 022 - 4 vPLO 023 2.20 /77 m rt7 240 MIXER FET2 2SK192AY 021 4.71( 0.2 5/1 m R24 1K L7 R20 2.21 m 019 0.047/P .L CIS 8501/SL m '104 m AMP.1 TOO L01675L Le ; 10 I • ' IF 1.0187k VR1 3000 < F, I, I 1 521( 5 1;r--1ra. L, 031 ' AN I F;.$ rAMI ' /-7-7 /77 Da 0180 111 5 / R32 C27 0.10 /77 - 026 0.039/P 034 55 OFF _AM DETECTOR 04 11344 E 402 3T B • 05 10251 y I • De 11201 I OFF 9- DI 1236 8211 1520750 038 R37 t. 850 031 020 0.001/1 Se L a39 661 6125 3.10 C30 0201 044 3912 C32 0147 5.100 I 0.031/r, /-77 m m SOUELCH LCTONT 443 VU MOKB 3SK C32 0.0221)F R40 151 2201 111 01 047 10K • - C25 I 0.031/1 046 47 • -1 .W TRI1 IC LC9450 I m -Le10N142 2 1.01430 EXP IN M" 101E 0642 0.lui 0503 470 m 0801 LC04511 ECN-29WST-673 VOL IN (AUDIO) Qi SQUELCH (LOW LEVEL) SQUELCH VR102-8 5018 COMPANDER " °5 :cS),L,L 51/01 F-X0--007-.,, ----9-I.-.0 R2 M.20 01' 0141 C .4302 TR6 0.1 lC9430 010 I" 23V I m /77 COO ; 0 D047/10 I • TV ROWER TRIO 22C0S2/SL 2=19570 2502078E • R123 I I • • 055 lit L13 :•!_•• CBI 47P/51. I 1001/51: 21 In C30 LII L15 I 0.039 : O.. pita I„T -0 - Ta,! 3.; /77M • m /4-7 m m rti • 118 5.27 - 15.71 MHZ I` 00206 CC 0KB JR741DO T rIK1 • /77 /77m 051 250 rft /77 IC2 TA7310P 096 0.039/ZF 890 I LIOC I : I t -I-C1/7 72, !°-:_L • ST ST Int l- t2coV/11 062 A 2;2. B2P/RH_ OK m 095 0.022P 2, 2 ICI 002 5.00 • glo2 1000 -F- o0s.0s1 mm 1102 3.24 • , I t 0 2! 0 DI e 1I UP20101 771.17 058 8.2 0UPFEP T" I 250041140 L I T: I 171 m177 Lei 0.01 "I I ti 11 2.20 /47 /-7I-7/47 7 1263 3R TX MIXER 1000 11811 004 1512/S1 L20 MTH 0105 el 391/SL I 014 036 15207512 I 02073K C3 TA73101 Rat C101 -7_L cut --- 0.01 001 044 - C1011 150 -- 0.01 COP Out TRIO COP 0804 I 10uF 155 0803 C502 lOuF 10oF 150 151 T .- ! . 1,7 'I r-. 1 160 I - IC801 TA31101AP A I can 3920P - I Dj_ SI ICI coos 0506 6500P 1 ,00061 cool 15 , 2,24F r.) .7uv ' /77 1160 r -r01114 1000uF /77 ON COMP OUT COMP IN 05.09 I CAF 160 0802 4141 42:4 10 046 56 022 - - c„, A C114 i,7v° IM 0.0„ / , III5C2 /-7I-7 /77 m uv m 6!A108 100 = 0115 0.030/Zt /77 I 0806 330 0501 LED r h );( 'f0a04r50 CAD 0.0022/P I 8221 VK 0204 0.001 IC4 RAS TA7222AP q III c e 1 A 1; 4' T 31a, 2? 16V I _L. 2 ogi_! 0461/P C45 ; ; • / 47 ; ei -] s 4, I C48 470 1110 7 DgT ! I ;10471 - 0.01 TI 21-2 !--! 0 , • t 0511 0.001 B gt 851 32 14 0 /77 e' I r+7 m OS • 044145 01107 , 100 m 7117 10145-0 037 Ovv ISO 0.033/P 046 2206 MIO AMP 440 CONTROL ae 0.1/A Ill , 5.5K ! 043 0.001/P MODULATION ALIGNMENT I 075 0.01 0513 0.22a 255 ) 055 067 5.81 33 TRIO LA733P 0122 311 071 1.2K -7-f71 011 13207511 50V I r y z ' I Los 'T -47 2.71 I I /77'M /77/77 f- • 0577 ,2r,0:j I m m C71 040- 7 Tig I 0.01 I M r/7 ___,C72 223.3/T 0.2 5.61 /77 /77 . 877 2. 20 0216 0.00IUF il/TH i t ! ,_ =m • ' g2 I I O, ! • , 6-_0 C) F1146 1.1" t I 13 070 /77 /7;7 /77 /77 330 • • ! 5201-0 . 01 lc) S/RF/SWR METER colf - •8•5 S. - e, = -I-4'. L22 1 • /77 M /47 /77 C94 C100 . 8P/SL I 51/ 2. I-4 !" 0101 51/SL 1 n n I I• Fr! , I I ! eel r ; o.ous 7 - 1 03114 C127 1012/C-1 I - 0110 015 a 01 56 015 1000 LC1675L 0207.51 PO1 CP7S7 AL 05CILLA, ON • s XI 10.244 LOS 3 1.24 1I-' -41--1H! J • • 004 4.7K 015 620756 COS 1 47 1164 ^ 1621 LA73 020 I RIDO 2.71 021 020750 TX SWITCH C117 470E 18V 15207311 0118 R101* 1 0.01 2.2 TRI3 I ICID880AY CM , ISO =, ._ 1610 • 0103 20000 2W ' 0105 520 ,X022 7• •, 11x901 C120 0 CI I 0.111 1 I 0.01 I 1 -.- I , 0104. 7 10 16 :r •! /77 • NOTES: I. RESISTANCE v•LUES ARE SuOwN N ONWS UNLESS OTNERYASE NOTED. 14:10. 1 OHMS OHMS) 01414814 032 I ' 1- '1 LL7 1-+ 033 L23 C:30 2200/2i0 L124r' ' I s I it E .-.T TsTsT..T, - ..T.T.T., A iE IG .E la S IS IS IS I g. ! r 'I oI M 4 -7 m 0.030/IF52 CLOW • IIEI TY TY 10.24mHZ , 1DP/RH . F. i! n I7 ! I ! fi /77m M M /77M m !E 151 1515 `?' ?')!`? ' R1YA1'.7K m CHI9 .'H 0.1 I 12117 TR22 T2 L201 25512570 2115 62-77 0.01 7 o23I 413 L o:71-F!!2!.0.1\ 2A o 00 15.10 • I I 66 ! , I IN4°Q1 L-" A I I ' • C2I21--TO202 I I I 2. RESISTOR WATTAGES ARE TAW UNLESS OTHERWISE SPECIFIED. I. CAPACITANCE VALUES ARE INENCATED iN WICROPAR•DS UNLESS OTHERWISE NOTED :uICROuuTCRD PAR•0.) A. ALL CAPACITORS TEMPERATURE CHARACTERISTICS ARE yr uNLESS OTNGw6E 00100. 5. CAAaolTAAo5 v•ToC OF (131 IS TACT:DIN ADAATED rola AP To 107 VOL OUT (AUDIO) 5010 411202-A s VOLUME p Lo ! S202-1 ; ;. IXI T 6: 1K 2 O\yDL_,-„?,,/ LL: 03 I 5KA „C.' . TX CONTROL 5201 iPOWER 5 04- 13.8V CD SYSTEM POWER LINE 0207-2 0_ a ; II I I j g07.304 1301-030E22013) 5301 ROTAL CHAVIEL SWITCH 0 I I 84414644 ;; 0315 12 6 0317 • I. y 0307-03021 IS2073125 I 0.3011-313.312 320.4 0315 150 1/Ow w 4,.507 220 MI 220 'CO KEPC-257 0401 302541 20K DELTA TUNE „ ( ax Sul 124.1 / 0201 02/TX/WX INDICATOR I I _,.. 00 S205-I 01201 0C9 5205-2 WX CONTROL I .3, 3IIC0 o MICROPHONE TITLE: CIRCUIT DI1AGRAM DATE: 4/23/GB MDL OS00 W. CORTLAND ST• CHICAGO. IWNOIS 60707 20 MC ST PART NO./DRAWING NO. PAGE 1 OF 2