0-75 DUAL-CHANNEL POWER AMPLIFIER SERVICE MANUAL CROWN INTERNATIONAL, INC. 1718 W. MISHAWAKA RD. ELKHART, IN 46517· 4095 C 1989 Crown International. Inc.
FULL THREE-YEAR WARRANTY SUMMARY OF WARRANTY We, CROWN INTERNATIONAL. INC., 1718 West Mishawalca Road. Elkhart, Indiana46517-4095 ('Narrantor) warrant to you. the ORIGINAL PURCHASER AND ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) yeaTS from the date of purchase by the original purchaser ( warranty period) lhal1hc product is free o f defects in materials or workmanship :md will mcet or exceed all advcniscd specifications for such a product.
The infonnation furnished in this manual does nO( include all of the details of design. production, or variations of theequipmenl. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance., beyond the scope of (his manual, please contaCt the Cro ....'Tl Interr.ational Customer Services Dcpanment. Crown International, Inc.
9 ~(j'@llilllOll _____-"o-,--z"-,'-'PO:::WE=Rc:.A"M"-PL"'IFc:IE"'R-'----_ _ _ _ _ _ _ _ _---"'RE"'V'-".0 Table of Contents 1 Introduction ___ .___ .______ .___ ._._.__ .. _._..._... __ .____ I- I 7 Specifications ___ ......._. __ ._._._._._._. _____ ._. _____ 7- 1 1.1 TheD-75 ..................................................... 1-1 7.1 General ....................................................... 7-1 1.2 Warramy ................................ .. ................ ",1-,1 7.2 Monaural, ..........
ill ustration 1.1 0·75 ...................................................... .. 2.1 Front Facilities (0.75) ................................ . 2.2 Rear Facilities (0·75)......... ... ..................... . 4.1 2 Ohm Load Wavefonn ............................. .. 4.2 10KHz Square Wave..................... ............. . 4.3 20KHz Sine Wave ............. ..... ................... . 4.4 1M Distortion Test Se(·up .. ..... ................... .. 4.5 Signal to Noise Test Set·up ........................ .. 5.
This Page left Blank Intentionally
~RE~Vcc.O'---_ _ _ _ _ _ _ _ _-'O"'.7"',"-P"O".WE"R"A"'M"'P"'U"FI"'ER"-_ _ _ _ (SU'©JMDIfil9 Fig. 1. 1 0 -75 1.2 Warranty 1 Introduction ProdUCt !.hal is covered by warranty must be Serviced by an Authorized Crown Service Center or at the Crown Factory Service Depanmenl. Any questions concerning This manual contains complete service infonnation on Ihe Crown D-75 power amplifier. It is designed 10 be used in conjunction wi th the 0 -75 Insttuction Manual.
I · • .. • F crown D75· C DE E D C B • I A FIG. 2. J FRONT FAC/LlTfED (0-75) E. Signal Presence Indication 2 Facilities A. Power A signal presence indication LED is provided for each channel to indicate when signal is presenl Unlike the "onJ orr' state orlhe IOC indicators the SP) LED's will vary with signal Jcvcl The AC power swilth, mounted at the right-hand comer of the 0 -75 is a simple 2 position "on/orr' control.
0·75 POWER AMPLIFIER REV. 0 N L H M K J G J K FIG. 2.2 Rear Facilities (D-75) I. Ground Barrier Strip L. Fuse Isolation of chassis ground from signal ground is easily accomplished by removing the shoning strap from this tenninal strip. This may help remove any hum problems caused by "ground loops." (Circuit ground is isolated from chassis ground by 2.7 ohms.) The AC line is safelYfused. If the unit is configured for lOOVAC or 120YAC operation. a 2 amp fuse is used and if SCI up for 200V AC.
This Page l eft Blank Intentionally
3 Required Test Equipment Many of the service and repair problems with the D· 75 can be performed with a limited amount of test equipment. However, in order 10 return the unit to its "factory new" specifications. the fol lowing list ofrequircd test equipment is recommended. The "Requirements" column provides information to allow intelligent selcctin of substituleS if the "Suggcsted Supplier and Mode'" is not available or is considered impractical to obtain.
This Page Left Blank Intentionally
D-75 POWER AMPLfFIER REV. 0 7 rem 4. Maintenance Effective repair involves three basic steps: 10 Determine the symptom(s) of the problem; 2) Identify the cause(s) of me symptom(s); 3) Repair the unit 10 eliminalC the caus.e(s), Before proceding through these steps it is highly recommended that you first observe the safelY precautions in the next section and conduct a visual inspection of the unit. 4.
2. Repair All component parts localcd on the Output Module may be removed by applying standard soldering! desoldering methods (See Section 7) from the lOp of the board. Use extra care when working with a pan localed near the front panel so as not to mar the finish. b. Front panel controls and LED's may be replaced without removing the OutpUt Module Board (Sec the following section). 3.
"RE",V,,-"O"---_ _ _ _ _ _ __ _ LlcF.:'=ER"--_ _ _ _ --'D'-":.;: '5"-P-"O"WE"'R.:.:A"'M:::.P.= (£(j'@Qd1!)(flJ (3 4.5.2 Test Procedures Test or Adjustment Input Signal Characteristics Instructions/Comments I . Quiescent OC offset None ±lOmV 2. Bias adjustment None Positive output, base-emiuer junction should be between .3V and .35V. Adjustable by RIl2, R212. 3. Power (single channel) Into 8 ohms, 20 vrms (SO watts) should be obtainable before signal clip. InlO 4 ohms, 11.
9 (£(f'@(hMUll _____ --'O;:.."'75"PD="'' 'E"R."AM=PL"IF "'E,,R' -_ _ _ _ _ _ _ _ _---'R'''E,.,V'-'' .0 Test or Adjustment Input Signal Characterist ics Instructions/COmments 6. Inlcnnodulation Distortion .SV +/·2%: 60Hz· 7KHz signal summed in4:1 ratio (See Fig. 4.4) When using the Crown IMA, typical readings will be as follows: 2.5V peak.peak 7. IOC 5Hz sq. wave OdB·.OO4% -SdB lhrough -25dB=.03% · 30dB·.03% · 3SdB·.
A ~E",V"-."-O _ _ _ _ _ _ _ _ _ _--,,D-,.75=PO::."':.:;E",R.:.;Ao:M:::P-,L::..'F,,IE.:.;R_ _ _ _ _ (£[J@(1ill)1fil9 5 Voltage Conversion Often Crown produCIS are purchased in one country and later moved to another requiring an AC mains conversion. For this reason the following chan/explanation as well as a world-wide voltage map is provided. 100 VAC The 0-75 power supply may be connected for any of five voltages. Convening from one 1.
This Page LeN Blank Intentionally
0-75 POWER AMPLIFIER REV. 0 Thiscombincd signal is then fed to a stage of power amplification where it is boosted to a level of sufficient amplitude to drive an Output Load. 6 Circuit Theory A ponion of the output signal is routed to the Signal Presence cin:uilry. Provided the output signal has J!l amplitude of at least one voll peal.: to peak, the green signal presence indicators willlighl and vary in imensily with Lilc OUlPULsignal. 6.
~ If:::(f(g)(Id!!)(fj) _ _ _ _ _--'D'C-'-'75'-'PO~W!"E":'R~A""M":P,o,L1F':"=cER~_ _ __ The following explanation refers 10 schematic diagram MI-270b located in the Instruction Manual as well as al theend of Section 9. However, each circuil under discussion is reprinted below in order to aid in circuit familiarization. Only channell is shown for simplicity. 6.2.
D-75 POWER AMPLIFIER REV. 0 6.5. Final Voltage Amplifier 6.7. Output Stage The Final Voltage Amplifier transistor (Q I02) is the main voltage amplification stage. All signal voltage that appears at the output is developed here. R 114 connected to the base circuit ofQI02 serves twO purposes: I) it provides collector CUiTent for Ql 00 2) it provides bias voltage as well as signal for Q 102 There are several categories or classes in ··/hich amplifiers a.""e p!a::ed.
capabilities. The limit point is deltnnincd by a combination of the predriver plus limiter current equaling the available current source on the main board. In ollier words, the signal drive that is fed to the predrivers is limited or clamped. 6.10. Signal Presence Indicator E 101 is lIIe green front panel indlcatorwhich illuminates at any time lIIe output voltage reaches I volt peak-peak or above. RI31, R132, 0107 and QI15 are Lhecomponents directly involved in the above mentioned process. 6.
~RE~V~.O~__________________~~~75~PO~W~ER~A~M~P~L~W~~~R__________ ~~~~~ ~ heat conduction and minimum weighL 7. Specifications 7.1 General Specifications Controls: Two inpm-level controls and a power switch on the from panel. A mono-sl.Cll:O switch, located next to the input jacks, on the rear panel.
~~~~~~ __________~~~7~5~PO~W~E~R~A=M~P~L~~~~R~__________________~A~E~V~.O Slewing Rate: 12 volts per microsecond. voltage. Damping Factor: Greater than 400. DC-400Hz into 16 Frequency Response: ± 0. ld8 20Hz-20KHz at I watt into 8 ohms; ± 1.2d8 5Hz-100KHz at I wau into 8 ohms. ohms. Dutpullmpedance: Less than 30 milliohms in series with less than 6 microhenries. Load Impedance: Rated for 8 and 16 ohm usage, safely 1KHz Power: 40 watts RMS inlO 8 ohms per channel, both channels operating; 0.
~ Test Configurati on & Loal ncr Ohm 4 8 Stereo per CH. (both ch, powered) 16 Bridged Monaural 8 (Balanced Output) 16 20Hz-20KH z 45 35 25 95 70 40mS Tone Bursl ElA WailS Single Cycle Tooe Burst WatlS at <0.05% THD (See note 2) Walts at <0.05% TIID lIrn, 1KHz l KH, lKfu 55 115 70 45 25 105 90 55 40 25 FTC Continuous Average Power al "> I% TIID (See nOle 1) 40 60 25 110 I3S 80 130 30 (SeenOlc 3) +/-JdB I% THD (See note-4) 75 Fig. 7.
7.4 Performance Graphs
+20 . 10 PHASE SHIFT (deg rees) I 0 ·1 0 ·20 ·30 10 ~ " jjjjJ: 11111 ·40 I 1 I 1 lK 100 10K ftm lfi ' lOOK FREQUENCY (Hz) Fig. 7.4 Nominal Phase Response % Efficiency II II 70 I IP~ . 60 • 50 I =:~, , I I I , , 40 I 30 10 100 I lK 10K 100K FREQUENCY (Hz) Fig. 7.
~~~~~~ __________~~~7~5P~O~W~E~R~A~M~K~IF~IE~R~___________________R~E~V", .O 10 0 _ O.F. 100" . 10 _ 10 _ 1K 100 10K 10 K FREQUENCY (Hz) Fig. 7.6 Nominal Damping Factor 90 80 70 &. ./ 80 50 (DEGREES) 40 30 20 10 0 -10 V 1 10 100 1K FREQUENCY (Hz) Fig. 7.
·70 C¥2 dB below 30W ·90 VLL IC' / 100 110 I 10 100 10K 1K 100K FREQUENCY (Hz) Fig. 7.B Nominal Crosstalk 400 I 100 ,, ,, , , nV/ /Hz" 10 I I I 10 100 1K 10K 100K FREQUENCY (Hz) Fig. 7.
ThiS Page Left Blank Intentionally
8 0-75 Schematic Diagrams Fig. 8.
~RE~V~.O~___________________D~.~~~P~O~W~E~R~AM~P~L~IF~~~R~________ ~~~~fD~ 9 Parts ordered from Crown will assure an acceptable replacement. Suucmral items. covers and panels are available from Crown only. 9.1 General Information 9.3 Ordering Parts Section 9 contains illustrations and partS lists for the D-75 power amplifier. This infonnation should be used with When ordering pans. be sure to give the amplifier mode.! and serial number and include \.
:e 00 •~ @ (fil • " ~ 'a~9 ,101 I r:::::j - t..6 .. ' " .........."'~"- a~ ~ I l-....-J C1 15 - "'<;>" til ~ " Q106 V _ _ _Al46 Cl 5' ;:: ~ " ~'40+ rlA3~ A119 0 lJAH'4r R121~ A120 ......--, Cl21 0 R127 D!? Cl0 C123 0105
",RE",V.:o!-0_ D-""7:::.!.5PO~W~E~ R AM~P"'LlF~IE~R_ _ _ (£(j'@0l1D0ll 9 ______ o o o JT , . I'i o o Fig. 9.
~~~~~ __________~~~7~ 5PV~W~E~R~A~M~K~IF~~~R~__________________~R~E~V~ .0 9.6 Illustrated Parts lists Parts List : D-75 Main Board Module Q41944J1 Scbematic Designation Description Qly. Part No. 5pfmica lOOpfmica 2 2 2 2 C2820-6 C2342· 1 C36274 C34IO·5 J20pfmica 6 C 3290- 1 200pfmica .OO15mf200V filmalic 6 2 C34I1 -3 C30S9·7 .0082mf200V filmatic 4 C 3063·2 .
REV. 0 0-75 POWER AMPLIFIER ~~--------~~====~----- [£!i'@lli!D!fil1el 0-75 Main Board Module Q41944J1 Continued ___ Schematic Description Qty_ Part No.
~~~~~~ __________~D~-Z~ 5~PO~W~E~R~A~M~~~~~IE~R~___________________A~E~V"' _O 0 -75 Main Board Module 041944J1 Continued •.. Schematic Description Qty. 'Selected bias resistor 2 Part No. Misc. Info Designation R112,R212 Typically 92-240 ohms R3 . RI08, R208, R119, R219 R1 21, R22 1 10K ohm l/2w I MF R142. R242 RIOS. R205, 15Kohm 1/4wSd 7 2 C 2343-9 C 2632-5 RI44, R244 18K ohm 1/4w Sef 4 C 2633-3 Parts list: 0-75 Main Board Module 042530-8 Capacitors C I06. C206 C I24, C224 e125.
REV. 0 0·75 POWER AMPLIFIER ~~------------~~~~~----- (S(J@[1J1I)1fil9 0 -75 Main Board Module Q42530-8 Continued ... Schem atic Dtsignation De~ription Qty. Part No. Dl,02 IN961 B lOY zener 2 C 3549·0 Integrated Circuits UJoo U2 U3 LF357 Opamp RC4558 Dual Op amp LM339N Volt Comparator 2 1 1 C7621·3 C 3919·5 C 4345·2 Co ils L101 . L201, LI02 . L202 .
9 (£(i'IQ)MDUll _____!:.D-~7::5P~O~W"EoCR"A""M,-PL"IF,-,IE"R,-_ _ __ _ _ _ _ _--,A",E"V"-,, .0 0·75 Main Board Module Q42530-8 Continued Schematic Designation Description Qly. Part No. 33K ohm 1/4w 5cf 56K ohm 1/4w 5cf 4 2 C4346·0 C2882·8 150K ohm 1/4w 5cf Sal. input trimmer 500 ohm trimmer 4 2 2 C4216-5 04669-4 C6048·0 10K ohm Iflw 1MF 15K ohm 1/4w 5cf 7 2 C2343·9 C2632·5 13K l/4w 5% cf 9.
~R~EV~.~O____________________~D~.7~5~PO~W~E~R~A~M~P~L~~~~R~________ ~~~~~~ Fig.
~~~~~ __________~ D-~~~PO~WE ~R~A~M~P~L~~~~~R~____________________~RE~V~.0 Parts List: 0-75 Output Module Q41945J8 Description Qly. Part No. .O lmf disc C 175 1-4 Smf 70V 3 2 2 IN4148 2 C 3181-1 2N3859A NPN 2 0296 1-7 R8 R148, R248 R I28. R228 R I29, R229 R!l2. R232 2.7 ohm .5W 5CF 2.7 ohm I w 10% I 2 C 2857-8 C 1001-4 .I ohm 5 w 10% wire 560 ohm 2 w 5 camp R131.R23 1 3.
28 24 26 o ,,• o ..... --------- 2 1 13 , 4l---l- 19 27 7 16 ~ 40 Fig. 9.
~~~~~~ __________~D~-7~5~PO~W~E~R~A~M~P~L1~F/~ER~__________________~R~ EV~ .O 9 36 I 8\ \ o\ -@-- ~ 29~ 5 Fig. 9.3 D· 75 Front Panel Assembly 15 20 10 Note .
~RE=-,V",.O'-_ _ _ _ _ _ _ _---'D-=75"=p~OW~E~R!CA~M'C'PL~/F:!"EO!:R'__ _ _ _ (£OOI1!1D[]l) 9 1111 i> !!Jj, III " 28 / f@J19~ o ~~ ~;II V 8 o 0 8 Fig. 9.
9(S[j'©l[illDUll _____~D-:.c7'C5P~O=:W~EocR~A~M~P:=L!'_IF~IEc:R'__ _ _ _ _ _ _ _ __ "A"-EV",,,.O Parts list: Front Panel Assembly Dtscriplion Qly. Pari No. Misc. Info 2 3 4 .375 bright nut .375x.l4lx.03 1 fiber I 2 C 128SN7 C 1296-0 On-Off switch hardware #6 star lockwashcr II C 5594-4 OUtput Ix>ard, bridge, and 5 6 7 #4 star lock washer C 1824-9 Crossmember hardware 4-40x.
This Page Left Blank Intentionally
9 (£;[j'(g)QJ11JIfil _ _ _ _ _-"D-'--'::.SPO'-"-'W-"Eo:;Rc.A:::;M"'PL"'IF:::;IE"'R'--_ _ _ _ _ _ _ _ _---'R"'Eo:v-,",_0 41 43 L:@:::....r@""-r-@"='-.j11L-- 45 46 47 44 42 Fig. 9.4 0-75 Neon Bracket Assembly 0-75 Neon bracket assembly Index No. 41 42 43 44 45 46 47 Parts Schematic Designation Description Qly- Part No. R5 11 27K ohm l(2.w 5cf Neon lamp NE2H 3 AUA leonina! strip 5S module pipe clip .093 steel cyelet 1.2x 1.2x.
",AE",V-" , O'--_ _ _-"D-:::.7""P-"O"'W""ER"'A"'M"-PL""IF-,oIE"'R_ _ __ __ _ __ _ (£(j'(gJl!DdlUll9 \ 54 \ /~©: ./ 68 . 71 \I \\~\ I 70 '- 50-/l-~ 49 -#--o~ 51 \ \ \ o () 59 67 -it''II11i t?ef 66 \ \ @ 55 6z., ~-j @ 65 \ \ 56,,~~ t= 9 \ t 68 58 '\" ',/61 , ,\ ,, Fig. 9.50·75 Back Panel Assembly ,~\>, ~ \~,~ / ),.
9 ("£(j'@l\illJ[R) _ _ _ _ _-"D:.:-7"--5PO="'"E"-R"'A"M'--PL'-'IF'--"E"R'-_ _ _ _ _ _ _ _ _ _R"'E'-'V~ -0 Parts List: 0-75 Back Panel Assembly Index Schematk No_ Designation 48 49 50 51 SWI 52 53 54 55 56 57 58 59 60 Part No. Description Q ,y- D-75 back panel Steel eyelet 0-75 rear panel switch 1 1 2 I Barrier block jumper 2 tenninal barrier block 2 conductor jack HT A fu seholder with nut 505 solder lug #8 hole I I 2 I I C4726-3 Dual binding post HEyeD strain relief 4-4Ox.
R~E~VC!.O'---_________--'D~.'_'75'.CP~O~W:,oE~R~AM~P::=L!CJF_=JE.::!R_ _ _ _ _ ~(J@l[l£1l)Ull9 Fig. 9.6 D-75 Ci:1paCIIOr Bracket Assembly Parts List: D-75 Capacitor Bracket Assembly Index Schematic No. Designation 72 L1D3 L203 73 74 75 76 77 78 79 80 81 82 83 84 85 Description Qty. Part No. D· 7S output coil 1 1 1 1 1 2 4 M43209·2 M43208-4 C 4738·8 4 I C 3575-9 D 3504·4 3/800x3/16lDxl/4" #10 star lockwashcr #8 type A plain washer 4 4 4 4 D 2934·4 C2762A8 lQ.-32x.
~~~~~fTI __________~D~-7~5~PO~W~E~R~A~P~L~~~~R~ M __________________~RE~V", .0 • 8~ 92 ":><1] -,.;$~\ 90 • • I Fig. 9.70-75 Final Assembly Parts List: 0-75 Final Assembly Index Schematic: No. Designation 89 89, 89b 90 91 92 93 94 Description Qly. Part No. From panel Lcxan Overlay AMCRON Overlay Bottom cover assembly Top cover assembly Feel I I I I I I M20162-O FlI 023-3 Rack ear 6-32x3/4sockct head 2 4 scrcw4 Parts 9-20 FI 0953·2 M20073 K5 FlOO15K6 C3342-O 04800-5 C 1858·7 Masc.
Parts List: Accessory Kit Description Q'l' .Part No. (Accessory Kit) Panel screws Washers Dual banana plugs Wire nuts Fuseholder Fuse 1.5 amp Selfstick Feel I 4 (M43204-3) D 5263-6 4 2 2 2 2 041 37·2 C 298 1-4 4 Misc.
This Page Left Blank Inlentionally
~RE~V"'.O~_ _ _ _ _ _ _ _ _ _D:,:.C'75'.CP:oO~"'~E!2R~AI~"P,-!L"-IF"IE,,R,-_ _ _ _ ~(j'@(!!lI](RJ 9 Appendix A: Installation Before beginning Ihe installation of your amplifier, please carefuUy note the following: It is always wise to remove power from the unit and tum the input leve\ controls off while making connections - especially if the load is a loudspeaker system. This will elim inate any chance of loud blasts or damage to the loudspeakers.
~~~~~~ __________~D~.7~5~PO~W~E~R~A~M~P~U~A~ER~__________________~ RE~V~.O Input Wiring Tips 1. Useonly shieldcdcablc:. Thehlgherthedensity of the shield (the oUler conductor). the better the cable. Spiral wrapped shic:ld is not recommended. The following filters arc recommended for such silUations: ~" _~ .L - .. I . ""'" )@ 2. Keep unbalanced cables as short as possible avoid cable lengths greater than 10 fcct. (Long Wlba.
Use speaker cables of sufficient gauge (thickness) fo; the. length used. Otherwise, power is lost through cable heating and the damping factor decreased due lO cable resistance. Refer to !he nomograph below for recommcnded wire sizes ~'Fi gure 3.6). If dynamic moving-coilloudspcakers are used, find RL by mezsuring the resistance of the voice coil with en ohmmeter. If electrostatic loudspeakers arc used, use the rated nom inal impedance of the manufacturer for RL. • 0 , --- -- --:-t_. .--.
9 ~(j'(Q)(!J1!)Ull _ _ _ _ _'!.D:c-75:.;p~O:!W~E"R~A~Mc:PL~/F~/E"R~_ _ _ _ _ __ _ __'R"'E'_'V"'-0 with onc fuse on each driver. Fuses help prevent damage due to prolonged overload. but provide essentially no protection against damage from large transients. To minimize this problem, use highspeed instrumem fuses such as the Liulcfuse 361000 series. Figure 3.8 is a nomograph showing fuse size versus loudspeaker peak power ralings. If.
~RE~V~.~O____________________~D~·7~5~P~O~W~E~R~A~M~PL~~~JE=R~_________ ~~~~~~ M'4 n Appendix B: Operation B.1 Precautions Allhough your amplifier is well proteCted from any external faults, we recommend the following precautions be taken ior safe operation: 1. When using input sources of uncenain level or 2.-1y 2. 3. 4. 5. 6. 7. 8. 9. audio components which have not previously been used with your amplifier.
@ ~(j'(Q)(lMa=u _ _ _ _ _"D-.::75"'P--'O'-'W"'E"'R.::A:::M:.:PL:::'F.::'E::.R'---_ _ _ _ _ _ _ _ _--'-R"'E-"V-.::0 inductive load which causes the load to emanate a pulse. This returned inductive energy has the opposite polarity or the original pulse· hence lhe name "flyback" pulse. It results in a rasping, popping distortion which is very irril.aling.) Because the currcOl limiter of the D-75 will nOI yield to the constant current demands of an inductive load but will suSl.
OUTPUT BOARD 9730 --_--_4' I J1'2 + 3 0 v - - - -__ . Q,O QlO, I lEOlO1 Ll01 IGREENV 1. CIRCUIT SHOWN STARTS WITH SN 200S, AND APPLIES ONLY TO PC BOARD #9750 (MAIN BOARD) AND PC BOARD #9730 (OUTPUT BOARD). 0105 ~ rTc NOTES: Q109 R132 2. 0105, 0205, D10S AND D20S ARE LOCATED ON THE MAIN BOARD (SHOWN ON OUTPUT BOARD FOR CLARITY). 560 2w 3. ALL RESISTORS ARE IN OHMS, ALL CAPACITORS ARE IN MI· CROFARADS, UNLESS OTHERWISE NOTED. 4.
~O~50 _____ I>: 1127 '.71< II' cla).o 1126 4..7K I R2 .20 lW ~CJ~ -.TO -'le Ql06 124 !80 tl23 22K CO~L C122 .01 1146 5.6 Rl06 0104- II 1K R122 120 1, QI05 18K 10. 1% Ql00 , '''~l[j ~ It 107 1< 120 t l nQl03~ 470 ~CT18 J !tll1 2.2K :b TcIO. 100" "" ~ R112 SIL lC113 200" 180 J l Ql0l RIIS 56 1l1l6 C110.+ 200pl' 5.6 - .. 1 1501( -1- I ~ ..... 14 bNPUT JC3C - 10K PO. 11040 1143 10' NP 1'-13 P-3 I" 1 ...
l lIED 201 \\jGlEENI ~Q209 .------Y~Q206 1206 22K 020'( ~ 020, R22'( 110 IL 1232 560 2W 0223 R246 ~.6 IK II 0205 11K U09 - 1210 3.9K C211 ~6K ~,F Q20~ (l- Jl-S 0202 C205 = -I.OOl~ = 1 JI-.J 1 I 0207 IK I =;= C5:5 120 =;= C~:2 1211 22K 1219 10K 1% ~ L20' .5vH D203 T_ I1: 1 5W I 0207 n ~21. LJ R246 2.7 R229 lW 5~ 100 e219 .1 II o J r-_t-o '----' I C218 OOS2 j = I II II IJ l J...----+-------.---f.,-r 1_ 1m I J ...._..:J;...'-.:...t-< I+--<_---"r.
5 6 7 8 C.P.H. 3 REV. J0116-4 @ 2 LC. N. 1 tf9RIYrI~ ZIH: I£V ])\1E BY 2-18-1E LCD GWS GWS LCD LCD 8-1-85 8-1-85 89-0500 89-0584 F .3QV '3OV Rl • Fe WERE seo· ()fl5 LtOl.102.201.202 WERE .6UH 910 ~ I -= 1 .Ot E L-_ _~ :i lN961 Dl0l.iOB D2\V.20B El00 EEOO EI02 EE02 LIDS leOS Nl00 ' - - - _ - - ( I l -... L203 ~ HE~S 5W2 SAL. II'Fl1T .30'/ -30V tIHL E202 RIl RIllY 14 RDlGN P-1B .3QV .3QV -=- R1J/GN Q107 -=- '---------+ to.
