Sharp R-309B Instructions d'exploitation

... . P Y4 AJ FABIO TEIXEIRA fl,li\G,\LHAFS CE-7 MULTI-CHANNEL FM COMMUNICATIONS MONITOR .r:.

[ Table 1-2. Specifications Model CE-7 Multi-Channel FlVI Communications Monitor Frequency Deviation Measure Frequency Coverage Frequency Accuracy Fr

Table 1-2. SpeCificlJtions (Continued) :\arrow Broad Nominal Input Impedance Narrow Frequency Coverage Bandwidth (3 dB) : Frequency Coverage Broad E

..a--_.. -..-... SECTION 2 INSTALLATION 2.1 linpacking and Inspection When unpaoking th e Model CE-7 FM Communications Monito r , i ns pe ct the

_ _ __0_ . SECTION 3 OPERATING INSTRUCTIONS 3.1 Iuu-oduction Section 3 contains instructions for operating the CE-7 Multi-Channel FM Communication

Table 3·}. Controls and Indicators NAME 1. F. GENERATOR OUTPUT LEVEL SELECTOR-Function Switch 1. F. HARM. AMP. TUNING CAL. CW FM FREQ.-DEV. MEASURE VO

Table 3-1. Conlrols and Indicators (Continued) NAME REF DESIG. FUNCTION DEV. ADJ. R4 Black/red concentric controls used when the FM CAL. R5 function

c:Table 3-1. Controls and Indicators (Continued) NAME CARRIER FREQUENCY SELECTOR SIGNAL LEVEL CHANNEL OVEN ON ±kHz (FREQUENCY lever) FREQUENCY (

3.40 Operating Procedures 3.4.1 Frequency and Deviation 'Ieasuremenl It is assumed that the CE-7 is equipped with a Model 303 Broadband Xlixer

_ _3.4.2 CW.Signal Gcncration a. Set the CARmER FREQUENCY SELECTOR to the desired carrier frequency. b. Place the function switch in the HARM. AMP.

3.4.4 IF.Signal Generation Place the function switch in thea. r. F. position. NOTE On earlier models of the CE-7 the IF position ON switch is part of

APPLICABLE TO INSTRUMENTS WITH SERIAL NUMBERS HIGHER THAN 261 CE ..7 lVIULTI..CHANNEL FM COMlVlUNICATIONS MONITOR P Y 4 A J _FABIO TElXElfiA MJ

3.4.6 Antenna Installation Remove the telescoping antenna from the front cover of the CE-7. Insert the telescoping antenna into the ANT. connector on

SECTION 4 CIRCUIT DESCRIPTION 4.1 Introduction The circuits of the Model CE-7 Multi-Channel Fl\1 Communications Monitor are on five printed circu

A signal generated with the CE-7 is derived from the same sources as the LO. signal with which an incoming signal is mixed to form the first IF and t

• ••tJ ~I MODEL 3l1) Pl~I1t tR MODEL 30'. 305. 3Ol>6 I!lll().l,DlWI) MIXER PUJG.:IH PllESELECTOO . ~ IGNA L LEVEL .. I : J ~J r. ~ ] "

2ND IF AND DI SCl1IMINATDR BOAR D DD 5 ~ -I . . Moon 301 I----~I -0-V' OSC1LLOSCOPE PLUG-IN I I ~:~::~:":"====''':O~

r----SECOND:;;E:---,f - -~QUEtIC~;-;;-ETECTOO---Il I I 10 ~Z FROM MODEL 303 1 100 KHZ I BROADBAND MIXER OR ONE SHOT LOIIPASS FILTER MODE L 30~. 305

09 20 KHZ LOWPASS FILTER2N3SbS 1-------1 I I II AI L9 THROUGH Ll2 B I AUDIO OUTPUT I 10 FM DEVIATIONII METER ORR'I-b I C29 I OSCILLOSCOPE2.21

------=,---=-""= = =--=-----=----- -will be of a higher value. See Figure 4-4, detail B. During the negative cycle of modulation, the pulse

Th e +20-volt r egulator consists of: br idge connected r ectifiers CRl, CR2, CR3, CR4; a filter capacitor , CI; a con-stant cur rent source,

~----------------:I f---~'\NN E L OSCI LLATOR • I • ~ANNEL AMPLIFIER • I I I NPUT I'.10DI FI ED CHANNELb.2-q.~ MHZ...J 3 FROM CRYSTAL I EMI

WARRANTY CUSHMAN ELECTRONICS. INC. WARRANTS EACH OF THE II\lSTRUMENTS OF THEIR MANUFACTURE TO BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP F

Table 4-1. Channel-Frequency Charl L.O. FREQUENCY RANGE (MHz) 28.0 to 37.4 37.4 to 50.0 30.0 to 37.4 37.4 to 56.0 56.0 to 74 .8 74.8 to 112.0 112

,-------------------1 I I 10 MHZ GEtlEflATOO I ATTE NUATOO~ 1I" 'l,,iT F'~ Ofl I 10 nHZ I C;:l "'S r ~1. OVEN A :;&apo

fun cti on switch is in th e I. F. position. Its output is amplified by Q14 and Q15, and fed to the buffer amplifier in the Secon d IFand Discr

SECTI.ON 5 MAINTENA NCE 5.1 Introduction This section co ntains the necessary procedures to perform adjus tment s and troubleshooti ng of the CE

[~ [:,-[:: Jb-1S FREQUENCY ERROR METER BOARD 0101 (FP-Al) POWER SUPPLY HARMONIC GENERATOR BOARD 0100 (CH-AS)BOARD 0102 (FP-A2) Figure 5·1. CE-7 R

c. Place the instrument on its rear panel with the Crystal Oven Assembly facing forward. Test Equipment Required: a. Frequency Counter, Hewlett-P

I lO-1l1HZ TRIMMER CRYSTAL OVEN ASSE~mLY CARRIER FREQUENCY SELECTOR • (CH-A~) Figure 5-2 . CE-7 Bottom Interior View Table 5·2. Power-Supply Board

Table 5-3. Crystal-Oscillator Adjustment STEP F UNCTION TEST POINT OR ADJUSTMENT PERFOR IVIA i'\CE STA i'\DARD lA Connect input of the count

- Table 5-3. Crystal-Oscillator Adjustment (Continued) STEP FUNCTION TEST POINT OR ADJUSTMENT PERFORMANCE STANDARD 2F Rotate the HARM. AMP; TUNING con

Table 5-3. Crystal-Oscillator Adjustment (Continued) STEP FUNCTION T EST P OINT OR ApJUSTMENT , PERFORi\IAI'\CE ..STAI'\DAHD 2N Reduce th

CONTENTS Page WARRANTY . iii SECTION 1 GENERAL DESCRIPTION 1-1 1. 1 Introduction . 1-1 1. 2 Accessories . 1-2 1. 2.1 Plug-In Units 1-2 1. 2.2 E

• CAL. centering: 1. Set the function switch to CAL.lcw. 2. Set the CAL. control (inner red knob) to a twelve 0 I clock position. 3. Adjust R30

Test Equipment Required: b. Frequency Counter, Model 5245 L . Hewl ett-Packard a . Signal Generator, Model 606. Hewlett-Packard c. Tuning Tool, No.

5.4.4 20-dB Eixcd-Attcnuntor Loss Check Preliminary Instructions: a . A 20-dB fixed attenuator is supplied with the CE-7 and is stored inside the f

b. Since it is essentia l th at the fixed attenuation is precisely 20 dB, the checks listed in Table 5-5 must be performed if damage is suspected. c

Table 5-6. Signal-Gcneration-Output Level Adjustment STEP FUNCTION TEST POINT OR ADJUST-MENT . PERFORA~NCESTANDARD 1A IB 1C ID IE IF Adjust the signal

Tahle 5-7. Signal.Gcncraior.;Uixer-Inpul Level Check STEP FUN CTION TEST POINT OR ADJUSTMENT PER FOR rvIA 0:CE STANDARD lA IE l C ID 2A 2E 2C 2D 2E 2

- - - ------Table 5-3. Troubleshooting, Frequency-Deviation.:\leasure (FDi\I) :\Iode TROUBLE CHECK ~ORr.1AL INDICATIO N REFER TO SELECTING PROPER CHAN

Tahle 5·8. Trouble;;hooting, Frequency.Deviation-l\Ie~ sure (FDM) Mode (Conlinued) TROUBLE CHECK NORMAL INDICATION REFER TO SIGNAL LEVEL light on, FRE

Table 5-9. Troubleshooting, Signal-Generator Mod e ; TROUBLE CHECK NORMAL INDICATION REFER TO CAL./CW operative as verified in 20-dB fixed attenuator

Table 5-10. Troubleshooting, I.E-Generator Mode TROUBLE CHECK NORMAL INDICATION REFER TO No output in all positions of the the SELECTOR switch. 600

Page MAINTENANCE .,SECTION 5 •••••••••••••••••••• ! ••••••••••• 5-1 5.1 Introduction. . . 5-1 5.2 Access . 5-1 5.3 Fuses . 5-1 5.4 Adjustment Procedu

--c C - Table 5-11. Troubleshooting, Crystal-Oven Assembly . TROUBLE CHECK NORMAL INDICATION REFER TO Excessive frequency error on all channels. OVE

Every effort has been made to ensure the accuracy of this manual. . If an error is discovered please notify us on the postpaid cards attached. Pleas

-----------------~.~--------. . i

- - - ------.. , , SECTION 6 . . SCHEMATICS, PARTS LISTS, AND PARTS PICTORIALS 6.1 Introduction Section 6 contains schematic diagrams, wiring di

T.able 6:1. Reference Designators and Abbreviations degree deviation Deg DEV REFERENCE DESIGNATORS A assembly ELECT.BM balanced mixer ENCAPB '

P Y4 AJ ABlO TEIXEIRA flt t\ GALHA~ 6.2.2 Power-Supply Board -C3 Ob C 1~ C2 O~ os Jl 0 2 C10 Cll C8 C9 C7 0 1 I C1 Cb CS C~ R27 R2b R2~ R28

6 2 2 POWEnSU PP LY BOAR 0 0 100 622 POWER "'l'PPLrBO\RO OIOO (Continued). oct , REF. DESO(IPTION elE STOCK NO. _e ll -AS C I C2 C3

6.2 Schematics, Parts Lists, Parts Pictorials Paragraphs 6.2. 1 through 6.2.9, on the following pages, provide schematics, parts lists, and parts

" r ".. ,. Q~ Q8 Q5 Q7 R21 Q3 Rl'\ R15 Q2 L~ LS I C2 L3 r r ..rr r -, " f!.. ~ ..rr Lll Ll2 QiD L7 R22 L8 R33 R3 7 Ll L2

I~-•I" +20 V -I) • ~ ~ ~ ~ ~ ~ ~ ~ +2 0 V Cl 2300 -0. 3 V +35 V 01 2N"+3'+ 2 Rl 1.BI< 02 2 N3'tlb R3 1. 0 ]".4,1'

-=-- . -:- 7 . - 2. _ b e 1-1. 1-2. 3-1. 4-1. 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-1I. 6-1. Page Power-Supply :Board, Block Diagram .

- - ----· !":-"' =E: :v... Al ~ 1_.5 V---1 FRCI< VOL\J'£ CONTROL AUOI O I NPUT F"P_R3-2 . 20 V BUSS TO CIl- T8 1- 1

6.2.3 Frequency-Err-or-Meter Board Ml R2 R~ Rb R3 R7 R5 CRl CR2 Rl .:' t!l '~ <'1J. ~ . •. ~ DSl 'E. A'll:·*f.AS'.:l&

- - -\, I R3R2 I1.2 K1 K TO FP-S2-1 I ±O.S Kf'Z ADJ.IFREQUENCyl TO FP-Sl-E-3-RS Rl R't 10 K 10 K S K TO FP-S2-2 ±l.S KHZ ADJ. R7 10 K Rb

6.2.4 Harmonic-Generator Board C4 C7 C9 C8 Cll Cl2CD ." Clb C18 C~O C2'1 . ~. t C2 C2S C3 Cl0 --. C32 C27 C28 C2b ,. C33 C31 C30 C29

I,0 2 au T2. CR2 L2 03 Ii ' .. r... :-1 ... :.,I r~ •~4-,07 08 CR't ~ i• G 2 .4 HAfDl0 ::--.1 C GF:\'ERATOn n O \ RD 0 102 CKT. RE

G£ '[RAT OR BOARD 0102 (Conllnued)"6. %. 4 HARMomc rxr, R!F. Jt CRt CR2 CR3 CR< CR:i LI L2 L3 U L5 Ul J2 33 RI aa RJ R'

1 ! R33 1.5K +b.3 V CR5 08 IN~57 2N35b3 F-, ~. C30: • 80PF : R32 : 1":...~...j +2.17 V C31 R3~ 180PF -= 2.2K 1 R30 1.2K +13.5 V ~~"

I CR3 R2G" Gb33 27 K C1b R13 R1~ C23 270PF 1K 00 2 3.3K r·IHARM. NfoP. TUNINGI 7 // / ____ L ~ / / / / RH 10 T3:l'~' .25: CHR15 Rll

6.2.5 Multi·Oscillator Board C2Q C22 C21 C15 Clb C17 C20 0 2 C31 C35 C3Q C% C7 cn C51 C12 Cll C25 CR2 C29 C3D C2 8 C13 L3 C2 } C33 0 8

:: R::7 R3R5 R ~ 8 RS1 R'tG R50 R53 R52 R:; ~R35 R31 R27 R2G R28 R32 R33 R37 R 3~ R10 R21 R17 R2b R1 R2 R18 R~ O R1G R3b R~~ R38 R'

SECTION 1 GENERAL DESCRIPTION , •tt••t Figure I-I. CE-7 :\Iulli-Channel F:\I Communications Monitor (Equipped) 1.1 Introduction The Model CE-7 M

. .., ~ \ IC LlI OSCI L LATO R 80A RD 0 103.-ccr, RH . otSal l PTJON CI E ~ T OCX NO. --CH -.\! Boar-d A';;h ·m bly. ~ f oJ lt l -OS('

L I ._ ..' 1,;' Tl oscc U .-OR. BO ...RD 0103 (Cor.·:~i.l~)'-IlH. • , ;";,.,': . l)(50lJPTI~ :...~R S cr.•. a r. as ,H. L

---~I-1 r---1lDO AmI'o'llATeo:l------" ., .l " ~ ." i>,.lSIoJ ----I3~"r::.l~- - ----- --LI----.:.--v ., IIIII RIC 1

6.2.6 IF Oscillator Board C~ CR I C5 6 2 J IF OSCILL H OR BOARD 0 10. 0<7. REF. DESCRIPTI ON m,.elE STOO< NO. Bo ard Assembly . IF Os

r-- - ----------------- - -I+20 V FROM Rl l K IF GENERATOR ~>---"''V'I.--<i>--------------''''------

6.2.7 IF-Oscillator Board RS R1C1Rll 01 02 CR1 .. Rb C2---~ R10C3 R3 RB C~ R2 Y1 627 IF OSCI L LAT OR BOARD0 105 Cl< T. REF. OEsaUPTI ON CIE STOC

~o +20 V FROM -----? >---J'v"0v-...----...------.------~ IF GENERATOR I SELECTOR I :~1 1- - - ---I I I I ~C'I 'T&ap

6.2.8 Sigual-C en er at or Mixer ~:: Jl R2 CRI Ll C3 L2 C'f C5 R3 6 2 8 SIGNAL GEN ERATOR MlXER CX T. REF. DESCRIPTION C/E STOCK NO. "

--C3 R3 .002 22 L2 .If 7 -C51.05 ,I CRl LO INPUT HPA2'100 SIGN' FROM GENERA -CH-Jl-K2 OUlP FP-J3 RLtI R2Ll 120 ClIn .O~ .'+7 10K -10 MH

6.2.9 Crystal-Oven Assembly C 2 ~ THRU C% (TYP I CAll 51 C~7 FRONT VIEW ( 51 TF1 C1 THRU C23 ( TYP IC ALl • 6-27/6-285601"0015

frequencies is av ailable between 250 kHz and 13. 5 MHz. The output levels of the IF signa Is are continuous ly variable. The CE- 7 must

~ I -C/E $T()Q( NO. I'FR. 760 1- 0011 Cushman 700 1-00 18 Cushm an 7001-001 9 Cushm an 7001-00 20 Cushm an lO-;"I Hz Crys t al Bracke t

,I ...c LINE rIlTIR e3' 1-1 8 FROM RP- m l -S ;~;'IN£ FILTER RP- llU - 3 04-JS-" CH- JS-2 cs- rs-; CH-JS-b ___ I CH- JS- S I c,,. ___

~-------~ rJI1II!I.-~ ...-r.• ~ fIIIII!!J 6.2. 10 Main Chassis, Wiring Di agram ~ ~ IIIIII!t ~ A ~ ;~ '"1 -----.-. _ - --.' -~ - - -

• • • • • •• • • • • • • • • • • • • • • • • • 4 4 • t • •• Kl CRl • •• • ... .. • • •• .1 •• • '~~.! " ,-• • (t~ r- . ,i" • •

·'-II!!' II![IJ ,,.. I 1~ ~ .-T81 8 +20 \ -e ...C1 .ns .. 0! -= C2 I .os , ~ CD - 12 V ~ ~ t ~ I ro, i•TO fRONT... LSI PANEL IfPI

__------51 J1 ·MULTI -OSCIL LATOIl FP-SI-G- b FP-Sb-G-b CH-Jl-1 8V CH-J2-17 F P -S~-b CH- J3 - 13 FP-S ~-7 5CH-H-12 F P -S~-8 CH-J S-21 F P-S~-q~ .

2 J3 IF AND F .~ DEVIATION METER U NATOR Oil OSCI LLOSCOPE RP-F 1- 1 13 RP-TI-2 H 3 15 ~ I b 17 19 7 l q 20 q 21 ID 22 CH-J2- 2 -11 23 12 2 ~ &ap

6.2.11 Front Panel, Wiring Diagram D52 52 D51 H 51A 5S 53 R3 5b R7 51 RB R1 R'l 57 J3 J1 R13 R12 Rll RiO C3 C1 J2 C2 Rb R'l RS 6- 35 5

", 6 2 11 FRO NT PA NEL 6 2 Il FRO -":T PA:\ EL (Co nnnoed j on . REF. DESCRIPTION C/ E SlOCK NO. MFR. FP As s embl y , Fron t pan

- - -qo 80 0 0qo-00 0 51 52 IHNZI [ill 1.5 1 . 5 5I CH-TIl1- 3 FP- S3-Q . FP-S2-12 Q<-KI-I FP-AI-8 FP-S3-5 o o o 53 Q<-Jl-N FP-A2-1 IFREQ

- - --_._ 1.2.2 External Instruments Three accessory instruments, the Model IVICO- G :lVIulti- Channe l Oscillator, the Model 107 FlVI Deviation Calib

__ _ 5 I FP-SI-E-5z _ FP-AI-b FP-AI-7 FP-AI-8~:: -~ IABOVE I ~C "",,Z CH-J 3-21 FP-SI-C- 3 CH- J2 - 11 CH- J2 -9 FP-SI-B- I C , P- SI - E-

] ] ] 6.2,12 Rear Panel ]I Tl Ll ~J ~ ~J Jl ~ :J Fl ~J :] Xl .. F2 I.."'J::J ... ...,-]..] ,...--~J ... "J ..] J c/e 5TOO< NO. 7

C...J5- 13 CH- J5- 1Q CH-J'- B C... H -7 Cil- J 3-2 Cil- J3- 1 CIl - JS- 12 CH- JS- l l Ffl-SS-2 FP- SS- l CH- JS - lf 0 1- J'J- ) CII-

6.2.13 CE-7 Co vers and Carrying Cases ~ . ~ ~ " ..~ . ~ ~; 7-. ~ .-PROTECTIVE/~~RYI NG CASE ZIPPER COVER (3 PLUG-INS) SHIPPING TRUNK (Lj-PLUG-I

6 2 I SECOND IF AND DISCRIMINATOR BOARD 00 ~4 /ConUn ued) CKT . M r. D£SCAI PTJON C/E srccc NO. ""'. RII Ca mp. 1. 2kf1• .t5

., .. I •I• I I II "0 --r CI OS .. 011 Oil RI S ~Hq 0.S-0.7S L'I.ZKI S~-1.2K 1.5Y. 3 . 31< 3. 31< C22 AlO 2.2K 01 2 1l)OPf 10K :

.. .' -I" R15 3. ] 1< elZ Rc?O l l}C;:-F l ox ...~~ ...~ ...Th.~ I I ~ .. V AC i . : : CR1* ; EQ= t Gb33: 0: 02 ;... 3 {"&q