Harris TE-3 Technical Manual Download

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Summary of Contents for TE-3

Page 2: ...THIS TECHNICAL MANUALPROVIDES THE NECESSARY INFORMATIONFOR THE APPLICATIQN INSTALLATION OPERATION ADJUSTMENTAND MAINTENANCEOF THE TE 3 EXCITER HARRIS CORPORATION Broadcas Products Division T M No 888...

Page 3: ...881 000 Pager 7 6 Schematic 842 5828 001 Delete R50 R51 from E2 to ground 10127175 17913 Schematic 842 5828 001 Replace w updated Rev G 4 10 27 75 18327 Page J 9 Schematic 838 2026 001 Replace w updat...

Page 4: ...ription from Parts List Replace schematic 838 2026 001 with up dated version no 838 4726 001 7 01 29 77 21750 Page 6 7 Parts List change C23 to read Cap 100 uF 35V 522 0454 000 Replace schematic 842 5...

Page 5: ...on and adjust R17 for a minimum 400 Hz signal level at 511 6 L R out to A Left Minus Right signal of 400 Hz is then connected into the left and right audio inputs Switch Sl to the stereo mode position...

Page 6: ...of improperly trained or inexperienced personnel performing such tasks During installation and operation of this equipment local building codes and fire protection standards must be observed The follo...

Page 7: ...NOSTRILS MAKE AIRTIGHT SEAL 4 BUICK FULL BREATHS REMEMBER MOUTH TO MOUTH RESUSCITATION MUST BE COMMENCDJ As SOON As POSSIBLE CHECK CAROTID PULSE ON 1 2 TO 2 APPROX 8 SEC 15 COMPRESSIONS C ONE RESCUER...

Page 8: ...le e If arms or legs are affected keep them elevated NOTE If medical help will not be available within an hour and the victim is conscious and not vomiting give him a weak solution of salt and soda 1...

Page 9: ...UNPACKING AND INSPECTION 2 1 UNPACKING CHECK LIST 2 1 MECHANICAL DETAILS 2 I POWER REQUIREMENTS CONNECTION 2 I RF OUTPUT CONNECTION 2 2 ADDITIONAL CONNECTIONS 2 2 Fig 2 1 Rear View 2 3 OPERATION AND...

Page 10: ...TER ASSEMBLY ISOLATION PAD 3 dB STEREO GENERATOR SCA GENERATOR 6 1 6 I 6 3 6 4 6 5 6 7 6 10 6 10 6 1 1 6 15 7 DRAWINGS _ 7 1 GENERAL NO CARRIER OUTPUT CARRIER OFF FREQUENCY HIGH DISTORTION HIGH NOISE...

Page 11: ...power of the exciter is 10 to 15 watts OPTIONAL EQUIPMENT The 15 3 exciter has provisions for three optional plug in modules two SCA Generators and one Stereo Generator Figure 1 1 shows the TE 3 with...

Page 12: ...o Right or Right to Left Channel Sub Carrier Suppression With or without modulation present Crosstalk Main channel to sub channel or sub channel to main channel Sub Carrier 2nd Harmonic Suppression 76...

Page 13: ...esponse modified for proper operation when used with stereo to conform to FCC specs 1 5 or better 30 7 000 Hz 55 dB minimum ref 100 modulation 400 Hz 60 dB or better 50 dB below 100 modulation ref 400...

Page 14: ...LYE0 ATOR SCA GENERATOR IOPTIONAL FRONT VIEW FIG 1 1...

Page 15: ...FRONT VIEW FIG 1 2...

Page 16: ...MUTE LEVEL J ADJUST TJ2 GROUND I I TJI TJ3 OUTPUT FREOUENCY ADJUST PILOT METER FUNCTION SELECTOR SWITCH FRONT VIEW FIG 1 3 l 6 l MONO IOTE TCH...

Page 17: ...992 2697 001 992 1715001 8881042001 Optional SCA Generator 1 or 2 Modules s 9946507001 Stereo Generator Module 9946533001 2 4 MECHANICAL DETAILS GATES PART NO 992 273 5 001 The modular design assures...

Page 18: ...RG58A U ADDITIONAL CONNECTIONS See Fig 2 1 Additonal connections are located on the terminal board TBI on the rear of the exciter They are as follows 1 2 3 Left Audio Input 2 is shield 4 5 6 Right Au...

Page 19: ...RIGHT AUDICI INPUT AC POWER AFC ALARM STEREO SWlTCH REAR VIEW FIG 2 1 2 3...

Page 20: ...Amp Fuse 2 Amp Fuse Toggle Switch Green Light Potentiometer Knob controlled Pot Toggle Switch Toggle Switch Potentiometer DC Microammeter 5 position knob controlled switch Toggle Switch Jack Test Jac...

Page 21: ...nel control AFC ADJUSTMENT is a vernier frequency adjust ment Two additional factory adjustments coarse frequency adjustment L3 and the modulator bias adjustment R6 are located on the shock mounted ch...

Page 22: ...te that the ALARM lamp illuminates and the meter returns to mid scale Rotate the AFC ADJUSTMENT clockwise until the ALARM lamp is extinguished Set the AFC ADJUSTMENT for a reading between 29 and 31 on...

Page 23: ...r a temperature range of 20 to t7 C The output volt ages will remain constant as the line voltage is varied from 85 to 115 of normal 117 volt AC SUPPLY Normal load variatbns will cause no voltage chan...

Page 24: ...d through the relay to the input terminals of the modulated oscillator When Sl is placed in the MONO position audio input signals connected to the left audio input again pass through a 19 kHz notch fi...

Page 25: ...es CR1 and CR2 are connected to the oscillator tank circuit and are biased to the linear region by resistor R6 the Modulator Bias control See Fig 4 3 Modulation from the audio unit or SCA generators o...

Page 26: ...ctions and a front panel switch disables the AFC unit during initial tune up and in case of malfunction Exact center frequency adjustment is assured by a vernier frequency control 4 61 REFERENCE OSCIL...

Page 27: ...illator frequency dividers is also a square wave This signal is differentiated by capacitor C9 and resistor R5 to form a sharp pulse The pulse is used to set the flip flop ZIO NOTE If the frequencies...

Page 28: ...the normal output of the phase detector is removed by the filtering action of R27 R28 C20 and C21 NOTE The frequency response of the amplifier is such that it will not respond to a signals outside the...

Page 29: ...ier 013 thus cancelling the harmonics NOTE 4 8 SUB CARRIER GENERATOR The sub carrier generator generates the sub carrier frequencies 41 or 67 kHz by utilizing two self excited oscillators 01 and 02 ar...

Page 30: ...When audio input is removed 06 and Q7 conduct causing the impedance from the junction of Cl7 and Cl8 to chassis ground to drop to a few ohms This causes the sub carrier output to be attenuated approxi...

Page 31: ...c3 CR9 INTERNAL VIEW POWER SUPPLY FIG 4 1 4 9...

Page 32: ...POWER AMPLIFIER FIG 4 2 4 10 L...

Page 33: ...23 INTERNAL VIEW MODULATED OSCILLATOR FIG 4 3 4 l 1...

Page 34: ...f INTERNAL VIEW OVEN COVER REMOVED AFC UNIT FIG 4 4 4 12...

Page 35: ...INTERNAL VIEW AUDIO UNIT FIG 4 5 4 13...

Page 36: ...R 2 03 I 0 CM R37 INTERNAL VIEW STEREO GENERATOR FIG 4 6 4 14 c...

Page 37: ...c21 Cl3 I I L3 CR2 INTERNAL VIEW SCA GENERATOR FIG 4 7 4 15...

Page 38: ...g frequency Check the output level of the modulated oscillator as read on the AFC meter If the modulated oscillator is functioning properly and is providing power out put to the IO watt amplifier trac...

Page 39: ...hase 5 8 POWER AMPLIFIER TUNING All internal adjustments are tuned for maximum power output RI 1 the input DRIVE control on the front panel is then set for the desired power output 5 9 AUDIO UNIT ALIG...

Page 40: ...7 is adjusted to modulate the main carrier 10 The pilot phase control R24 is adjusted for best separation as read on a stereo monitor 5 11 SUB CARRIER GENERATOR SETTING See Fig 4 7 The first SCA gener...

Page 41: ...Hz to the proper SCA input terminals of the exclter and modulate the sub carrier 100 Reduce the level of the audio inp ut 30 or 40 dB and adjust R32 so the sub carrier output disappears NOTE Sl the m...

Page 42: ...POWERSUPPLY 992 1726 002 992 1913 002 P C Board SYMBOL DESCRIPTION GATESPART NO SYMBOL DESCRIPTION GATES PART NO I Al Lamp 3w 120v 396 0163 000 CR6 thru CR9 Diode lN4720 384 0165 000 C3 C4 c5 33 c7 3...

Page 43: ...697 Res 2 ohms 542 0438 000 25W Res 1K ohm 548 0192 000 3w 1 Not Used in Power Supply Res 510 ohms 540 0042 000 Not Used in Power Supply Res 1 6K ohms 548 0197 000 3w 1 same as R8 Res 1OK ohms 540 093...

Page 44: ...14 384 0134 000 FL1 illru FL Rev A Filter 484 0065 000 7 82 Not Usedin PowerAmplifier Panelconnector 610 0419 000 Recepracle Panel 620 0355 000 Maie 50 ohms Not Used in Power Amplifier kigllt Angie Re...

Page 45: ...hm 540 0049 000 w 5 RI3 Res 4 7 K ohms 540 0065 000 w 5 R14 Res 47 K ohms 540 0089 000 x w 5 6 4 992 1830 001 AUDIO UNIT 992 1909 001 P C Board cz elm c4 c5 C6 till C8 c9 Cl0 CR1 6 4 Cap 025 F 508 030...

Page 46: ...dulated Oscillator c5 Cap 27 pF 500 V 500 0811 000 88 98 MHz1 c5 C6 c7 C8 c9 Cap18pF500 500 0807 000 98 108 MHzi Cap 15 F 7 5 v 522 0240 000 same as CL Same a5 c2 cap 5uF 25V 522 0236000 CIOA Cap 47 D...

Page 47: ...Cap 22 pF 500 Cap 39 PF 500 v connector Power Receptacle Coax same as JZ nd cror 10 H same as Ll d ctOr Variate d croi 47 H same as L l d crOr 1 H 522 0246 ooo 500 0809 000 500 0815 000 616 0319 000...

Page 48: ...6 992 2697 001 AFC UNIT 992 2702 001 P C Board Cl c2 iv co c7 C8 cs Cl0 Cl1 Cl2 c13 c14 Cl5 Cl6 fhru cz c23 c25 Rev A a2 C26 c27 cm c29 a0 c31 c32 c33 c34 CR1 thi CR7 CR8 CR9 CR10 Cap Ol uF 1 k 516 00...

Page 49: ...041 000 380 0066 000 540 0886 000 SYMBOL DESCRIPTION GATES PART NO R3 R4 R5 R6 Rll R12 RI3 R21 R22 R23 R24 R25 Res470ohms 540 0904 000 A w 5 RS2 2K ohm 540 0920 000 A w 5 Res 10 K ohm 540 0936 000 w 5...

Page 50: ...2 000 SYMBOL OESCRlPTlON GATES PART NO t Tog 3 604 0320 000 Switch SP 5 POS 800 0477 000 Socket Lamp 406 0376 000 Lens Red 406 0374 000 NOT USed in AFC it Tlansipad for 404 0198 000 TO 5Case same as x...

Page 51: ...ATES PART NO L1 Choke 100 H 494 0233 000 thr LS L7 coil 814 4837 001 ttlru L10 L11 Choke 3 3 UH 494 0110 000 tllru L20 I 6 8 ISOLATION PAD 3 dB 992 2241 002 SYMBOL DESCRIPTION GATES PART NO I I5 Recep...

Page 52: ...50 F 25 522 0244 000 Cap 35 F 25 522 0243 000 NOT used in stereo Generator Cap 1 F 200 506 0087 000 cm 01 F 2oov 506 0001 000 z 7 PF 500 0835 000 Same as C29 4174 T CT31 c33 rhr c34 c35 C36 C38 c39 rh...

Page 53: ...07 000 540 0934 000 540 0960 000 540 0912 000 540 0920 000 540 0888 000 i RI16 R17 RI8 RI9 R20 R21 R22 R23 R24 R25 R26 R27 R28 RX R30 R31 R32 R33 R34 R35 RX R37 R38 Rx2 R40 540 0928 000 548 0211 000 5...

Page 54: ...R71 R72 R73 R74 RX R76 R77 R78 R67 Same as R9 Same as R2 same as R4 Same as R59 SameasR12 SWitCh S b iat ro Togg e SPDT 559 0006 000 604 0366 000 478 0269 000 478 0270 000 478 0026 000 478 0220 000 6...

Page 55: ...SECTION 6 PARTS LIST CONT D 6 9 STEREO GENERATOR CONT D 6 14 Rev 4174 Warning disconnect primary power prior to servicing...

Page 56: ...L6 L7 PY P6 Q3 W 06 07 same as CT6 Cap2 F25 522 0233 000 Same as Cl6 Cap 25 F 26 522 024 000 Cap 50 F 25 v 522 0244 000 same as c31 Cap 20 F 50 522 0256 000 Cap 3 9uF 526 0012 000 35v Diode 7N270 384...

Page 57: ...w 5 sameasR28 Pot Min 550 0007 000 10Kohm hW Linear Taper SameasR30 Res120K ohms 540 0099 000 A w 5 Res 5 1 K ohms 540 0066 000 4 w 5 sameasR28 Res1 1 K ohms 540 0050 000 Aw 5 Res580ohms 540 0045 000...

Page 58: ...SCRlPTlON GATESPARTNO SYMBOL DESCRlPTiON GATESPARTNO xa Transistor Socket 404 0066 05l xcl2 same as XQl x03 Transipad for 404 0198 000 tllru TO 5 Case XQ6 UlA B ht Circuit 382 0018 000 CA3018A Rev 417...

Page 59: ...I SECTION 7 DRAWINGS 7 1...

Page 60: ...L r BLOCK DIAGRAM FIG 7 1 7 2...

Page 61: ...I I I I XMTR lNLl 67kHz SCA INPUT OPEN FOR MONO CLOSE FOR STER o PS 1 20 30 P8 3 40 PIO l NC f 50 INTERCONNECTING DIAGRAM FIG 7 2 7 3 arning disconnect primary power prior to servicing...

Page 62: ...r 1 1 I T Ir...

Page 63: ...OUTPUT 815 1459 001 1 AT l ISOLATION PAD FM EXCITER HARRISCORPORIITION sroadcasiP Od CiS D lS o FIG i 23 7 10 Hamolhlrestreet o cy illl OlS6230 7 11 Warning disconnect primary power prior to servicin...

Page 64: ...________________________ ___________ I J 124 IN 1 3 PWRGND MODULATED OSCILLATOR FIG 7 4 7 s 822 5827 00 1 CLii 5 I 1L AT C B oecLal PIM I D 29 3 0 s t C c rn 5 62301 Faming disconnect primary power pr...

Page 65: ...D FULL P TIP l i AFC UNIT 838 5828 001 FIG 7 5 7 6...

Page 66: ...16V MIS IOV RMS Cl1 3 9 35v Lz A h 2 24 VOLTS OC Z 3 2 1 l iA AT IO WATT LEVEL BA AT 3 2 WATT LEVEL NEG 24v 4A AT NO ORIVE CONOITION NOTE ALL CAPACITORS IN uF UNLESS OTHERWISESTATED VOLTAGE MEASUREME...

Page 67: ...I AUDIO UNIT FIG 7 7 7 8 Warning disconnect primary parer prior to servicing...

Page 68: ...bLH btNtWlUK 838 4726 001 FIG 7 8...

Page 69: ..._ I I ARY0K C WLL I I I _ F _...

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