"service manual"
Contents
1. 21 Power Supply Chassis 22 PARTS Parts IOMA ON s 23 pij mec gt E huwa 24 993 024277 SPECIFICATIONS String Effect Selectors Low High Ensemble Touch Vibrato Special Effect Selectors Sustainer Reverberation Animation tere La Veg TR Uy TT Volume and Tone Selectors On Off Switch with Pilot Light Keyboard Balance 61 Note Keyboard Bass Expression Glide Pedal Treble Removable Music Rack Detachable Legs Removable Lid Output Jack to external amp Master Volume Dimensions Aux Jack f tonat are ux Jack for optional Cordovox Height 34 1 2 with legs Tone ii 7 7 8 without legs Width 38 Depth 23 Weight 77 Ibs CIRCUIT DESCRIPTION SCHEMATIC 1 GLIDE TONE GENERATORS ANIMATION amp DIVIDERS There are three generator systems used Channel 1 Channel 2 and the Top Octave Synthesizers Channel 2 always has an output as long as the high or low pushbuttons are on while the TOS and Channel 1 generators have an output only when the ensemble pushbutton is pressed Pressing the Glide Switch on the Expression Pedal acti vates the Glide circuitry which de tunes the three generator systems by a half step Q1 GLIDE SWITCHER When the Glide Switch2. 4 S uem ttt U eet Ae d PR wean X sonore ta nan ada lt 7 ONE c Hot s Rt nate wear STRING SYMPHONIZER KEYING BRD H et Q 8 13 9 12 4 Q 040 12 048 049 041 12 045 046 042 12 047 19 PREAMP AND REVERB BOARD L5 L6 Q51 Q52 D15 D17 Q27 PHOTOGRAPHS setta b EOS TON E A 037 P1 20 gt 07 R1 C12 Q53 056 057 C13 Le Z3 D30 POWER SUPPLY BOARD 062 D27 D28 Located in Power Supply Chassis D29 Z2 D26 Z1 SHE E S ner D31 Q60 Q61 SHdVv49010Hd POWER SUPPLY CHASSIS TRANS FORMER POWER SUPPLY BOARD y DR a P G 2 gt 79 L o SLO BLO Q63 PARTS INFORMATION STANDARD PARTS Replacements for all standard electronic parts and hard ware may be purchased directly from local suppliers generally in less time than would be required to obtain them from the factory SPECIAL PARTS In addition to the standard replacement parts special electronic and mechanical parts are also used These parts are manufactur
3. 5 SERVICE INFORMATION Specificationi rr 1 Description iu A RACES Bas 2 ets 3 a y ah 4 SCHEMATICS Drawing No 1 Glide Tone Generators Animation 5 Drawing No 2 String amp Touch Vibrato Keying 6 Drawing No 3 Reverb Preamps amp Expression Pedal 8 Drawing No 4 Power Supply et Nostre 9 CHARTS amp DIAGRAMS String Symphonizer Keying Board 10 Diode Keying Chart 12 Transistor Basing Diagram 14 Transistor Location Chart 15 PHOTOGRAPHS o String Symphonizer Oscillator 16 String Symphonizer Divider amp Mixing 17 Touch Vibrato amp Glide Board 18 String Symphonizer Keying Board 19 Preamp amp Reverb Board 20 Power Supply Board
4. KEY DIODE D14 DIODE D13 cs LOW DIODE 013 64 HIGH DIODE D14 CHARTS 00 1 TO 00 e KEY TRANSISTOR BASING DIAGRAM FIG C FIG F FIG G FIG PART NUMBER FIGURE PART NUMBER FIGURE PART NUMBER FIGURE PART NUMBER FIGURE SSS ss n 991002232 c 991012396 F 9910678 __991 002271 Gu 99121086 992017169 G ___ Jj L 991 0022958 c 920370 017456 F J 991 002873 991013544 c 991018007 e _____ __991 002888 991013599 c 9910182237 8 j __992 003139 99101500 9910189903 991 003304 C 991015000 992 02042 991 0083933 cC 991015062 991020425 H 991015063 A 912246 992008890 9910153 6 99202201 G 1 e 991 1008 991015587 c_ 991 021451 y l o L 991 010462 991015614 991021450 L 991011576 D 9910563 c 991011706 D 991016627272 c AAA SE Ea ASA TAE EEE EE BS S 14 N TRANSISTOR LOCATION CHART NAME OF BOARD I String Symphonizer Oscillator Board String Symphonizer Oscillator Board 27 Touch Vibrato amp Glide Bo
5. STRING TOUCH vi KIYING 15 Sv To Driver 933 4 Sting Preamo fotkuser 052 Sco 3 10K 047 REVERB PREAMPS NOTES All resistors are 1 2 watt unless otherwise specified capacitors are in microfarads unless otherwise specified All voltages are measured to ground with Simpson 260 VOM See Parts List for component part numbers Denotes factory tailored component Happiness is like a kiss you must share it to have it SPRING UNIT Reverberation Control VRE MAIN PREANPS 13 5V 13 5V Master Volume Contro VR11 Bass Control 9 To External Amplifier STRING PREAMP EMITTER FOLLOWER Treble Control VRIO 0065 Glide Switch EXPRESSION PEDAL 20 Pin6 1 REVERB PREAMPS amp J i EXPRESSION PEDAL v To Glide Switcher Dwg No 3 Model CSS Circuit Q1 See 1 Contact Buss Soft JVILVNSHOS Component Location Chart OM REVEerD 026 4700 500P C REGULATOR 1 18V To Animation Control amp Driver 56 o nre i E 1 80 2 21 200 ow 18 5V Touch Vibrato Glide Keyers 2700 C High Low amp Reverb Drivers aval Part of Touch 4 E 951 13 5V amp Main Preamps amp 5 1 Vibrato Switch 200 19K E
6. 015722 Mat SWE RO 959 008052 Resistor 22 OOM LEALI ews 851 352220 PARTS LIST e Schematic Part Part Description Reference Number SWELL PEDAL ASSEMBLY Continued Shaft uo et 974 012359 Spring COImDEBSSIOD tarea tasu C id Sats Sick ate 975 011747 Spring 917 009989 2 Switch 960 008102 Washer FICHON pee qr 904 012674 TOUCH VIBRATOR amp GLIDE BOARD Capacitor Electrolytic 2 UF 20V NP 945 008895 32 Capacitor Electrolytic 3 UF SOV wee Ree RUE BNR ie Ege 945 008895 6 Diode 01 4 9 919 010873 Potentiometer 10K TOS Glide Adj VRT ata aan 925 004349 3 Potentiometer Touch Vibrato Delay Adj pi 925 004349 5 Transistor nat a ai aid A dar 991 010098 Transistor Oscillator ac id sica del de E S d ues 03136 991 008393 Transistor o AA A 991 013544 Transistor E S 029 Mia ee 991 015587 Transistor PNP epa DA a O 991 015614 Transistor BIQT hera b Q P au 026 28 ae a IE 99 1 020426 3 27
7. 8055 DRIVERS HIGH amp Low il ANIMATION LES lig ANIMATION DRIVER l J animation WL OSCILLATORS Lc 1 i i I I CHANNEL 2 STRING DIVIDERS LAD CHANNEL STRING DIVIDERS CHANNEL 1 MASTER 105 DIVIDERS STRING KEYERS amp PREAMPS 7777261 SUSTAIN REGULATOR 4 SUSTAINER CONTROL STRING PREAMPS REVERB DRIVER PREAMP EMITTER FOLLOWER STRING 38 Control j Signal Flow Circuit ata The Numoer Tre Letter Designation Refers Designation Refers The P C Board Where The The Schematic Components Witrin The Block Number Where The Are Located See Chart Below Circuit Within The Block 1 Located Key Tre Example Abo e The Circuit Components Would Found On The Touch Vibrato amp Glide Board amp The Circuit Drawing Would Found Scherratic 1 Circ it Location Chart Board Touch Vibrato amp Glide Board Preamp amp Reverb Board String Symphonizer Oscillator Board String Symphonizer Di ider Mixing Board String Symphonizer Keying Board MASTER MAIN PREAMPS VOLUME PHOTOCELL REVERB MIXER To External Amplifier VOLUME CONTROL EXPRESSION PEDAL 9018 1 boxed number
8. Part of Part of Part of Low Switch High Switch Ensemble Switch REGULATOR 2 470 From Dwg 2 From Dwg 2 From Dwg 1 15 5V To Collector amp String Preamps gt gt 18 5V To Glide Keyers 7 1K 500 REGULATOR 3 Plug 1 2 Slo Blo E 962 Fuse ae 54 iQ 2852 2 4 Pin 4 F gt Y 3 5 1 0 5 Sustain amp Volume Photocell 4870 2W i 13V To Channel Oscillators amp Ensemble Switch REGULATOR 4098 5 P I 10 Pin 3 350 23 13V String Dividers Sustainer Control amp T O S Via Ensemble Switch F F 1000 13V To Channel 2 Oscillators C15 100 NOTES T All resistors are 1 2 watt unless otherwise specified All capacitors are in microfarads unless otherwise specified All voltages measured to ground with a Simpson 260 VOM See parts list for component part numbers It s easier to break good resolutions than bad habits Components shown to the right of plug amp sockets are located thruout the organ refer to Component Location Chart for their location 7 pushbutton switches shown in the off position P vn Z POWER SUPPLY Dwg 4 Model CSS JILVNAHOS OL STRING SYMPHONIZER KEYING BOARD For additional Callo i eying Board 108106400400 P0 98 106 08 28 29 28 Pr PI O 8 d B 8 P a Pt Pt M oh 8 8 8 8
9. b b P d y T 208 I 1 d NEN Puy tuu HH P P P MN MEME j f j 8 8 4 d D P DOM PE HM NE NEL LN E tetas Nue sp eR ac te De ll v ta int T MTM uts see Photograph of Board SLYVHO STRING SYMPHONIZER KEYERS CHARTS lt lo e N lt m st e lt qe Nin m e SUSTAIN DIODE D18 69 ____68 __ 67 STRING KEYERS Q38 042 18 17 117 DIODE D23 27 _ 155 __83 26 00 DIODE D19 171 170 _ 169 __ 168 167 SUSTAIN DIODE 137 57 179 AA 178 166 X FF 99 i ul o vd om O m 11 cL CSS DIODE KEYING DI E Y E33 09 63 C1 C91 E23 C33 C21 C33 E93 9 5 CJ 0 E D 6 GI GI C89 E C83 C31 Y E23 C33 E E 1 E73 x 7 D D 41 C1 Y I 5 E 97 I C8 E E E C8 DI DE UY 1 Ds p 03 D 05 0981 C97 px C97 D LOW DIODE D13 47 HIGH KEY DIODE D14 76 40 DIODE KEYING CHART HIGH LOW
10. being sent via the Volume Photocell P1 to the Main Preamps Q56 amp O57 056 amp 057 MAIN PREAMPS Signal from the Reverb Mixer Q55 via the Volume Photocell P1 is applied to the Main Preamps where the signal is ampli fied before being applied to an external amp The Master Volume Control VR11 controls the maximum range of the Expression Pedal SCHEMATIC 4 POWER SUPPLY Positive and negative DC supply voltages are produced using Transformer T1 Diodes 026 031 and several and filter capacitors These DC voltages are supplied to the var ious circuits of the organ Zener Diodes Z1 Z3 and Regulator Transistors Q60 Q63 are used as voltage regulators for several voltage lines A 1 2 amp Slo Blo fuse is also included in the Power Supply circuit ahead of Power Transformer T1 to prevent serious component damage in the event of a short circuit ADJUSTMENTS VR5 TOUCH VIBRATO DELAY ADJUSTMENT This adjustment is factory set for maximum vibrato 8 sec onds after key is pressed Minimum vibrato should begin approximately 3 seconds after key is pressed VR1 TOS GLIDE ADJUSTMENT The TOS Glide Adjustment regulates the amount the TOS is de tuned when the Glide Switch is pressed To adjust for proper de tuning ground out any Channel 2 Master Oscil lator output C for example and turn on the Ensemble Switch with either the High or Low pushbutton on Hold down any C key on the keyboard and the Glide Switch Now using the T
11. sustain effect 043 047 OCTAVE COLLECTOR PREAMPS Signal from the String Keyers is applied to the Octave Col lector Preamps where it is amplified and applied to the String Preamps 048 amp Q49 Q48 049 STRING PREAMPS Signal from the five Octave Collector Preamps is applied to the Reverb Driver Q51 and String Preamp Emitter Follower Q52 SCHEMATIC 3 REVERB PREAMPS AND EXPRESSION PEDAL Audio signal from the String Preamps is applied to the Reverb circuitry and to the String Preamp Emitter Follower Q52 Signal output from the Reverb circuitry and Emitter Follow are mixed and amplified by the Reverb Mixer Q55 Signal is then applied via the Volume Photocell P1 to the Main Pre amps O56 amp Q57 Q51 REVERB DRIVER The audio output signal from the String Preamps Q48 amp Q49 is amplified and applied to the reverb spring unit where the reverb effect is produced Q53 Q54 REVERB PREAMPS Reverberating audio signal from the reverb spring unit is amplified and applied via the Reverberation Control VR8 to the Reverb Mixer 055 Q52 STRING PREAMP EMITTER FOLLOWER Audio signal from the String Preamps 048 amp 049 is trans formed into a low impedance signal before being applied to the Reverb Mixer Q55 Q55 REVERB MIXER Audio signal from the String Preamp Emitter Follower and Reverb circuitry via the Bass and Treble Controls VR9 amp VR10 are applied to the Reverb Mixer Q55 Here the signals are mixed and amplified before
12. 26 and 028 turning it on and applying positive voltage to the touch vibrato keying circuit Also positive voltage from the keyswitch buss bar is applied to the String Keyer circuit where audio signal from the TOS Generator and Channel 1 amp 2 Generators is combined and passed through the String Keyer This combined signal is then applied to a Collector Octave Preamp and then the String Preamps Q48 amp 049 before being sent to the Reverb Driver Q51 and the String Emitter Follower Q52 025 028 C3 C6 amp C1 B2 BUSS DRIVERS Positive voltage from the Keyboard Balance Control VR4 is applied to the bases of Q25 amp Q27 causing them to conduct which applies voltage through the emitter base junction of Q26 amp Q28 to the High amp Low Keyswitch Buss Bars Q29 Q36 TOUCH VIBRATO KEYERS amp SWITCHERS Pressing a keyswitch lowers the voltage on the base of its associated Buss Driver Q26 or Q28 causing it to conduct which applies a positive voltage to the base of Touch Vibrato Keyer Q29 This causes Q29 to conduct which creates a pulse across the 3 UF capacitor lowering the voltage on the base of Touch Vibrato Keyer Q30 and momentarily turning it off With the touch vibrato pushbutton on voltage from the collector of Q30 is applied to the bases of the Touch Vibrato Switchers Q31 Q36 causing them to conduct momentarily turning off the Animation Oscillators As the 3 UF capacitor charges Touch Vibrato Keyer turns on grounding the
13. KEYING BOARD ASSEMBLY 26 STRING SYMPHONIZER OSCILLATOR BOARD 55 26 SWELL PEDAL ASSEMBLY S AA 26 TOUCH VIBRATO amp GLIDE BOARD 55 27 THE PARTS LIST CONTAINS THE FOLLOWING INFORMATION 1 Name of Part 2 Value Tolerance and Code When Important 3 Brief description 4 Where the part is found assembly printed circuit board etc 5 Schematic Reference Number 6 PART NUMBER USE IT This parts list includes all standard stock replacement parts No attempt has been made to include every nut bolt and screw If the necessity for a non listed part arises please write describing the parts location and function as well as model and serial number of the unit 24 PARTS LIST Schematic Part Description Reference CONSOLE ASSEMBLY UNIT e bo beds a p uud m ERRARE em ee eee CONTROL PANEL ASSEMBLY Assembly Tab Panel amp Escutcheon _ Knob ie ae ee dale linate hier rrr Potentiometer 5K Animation Balance Control VRZ 4d uu sk usu sat Potentiometer 100K Volume amp Reverb Control VHS Tisu ami u atau s Potentiometer 100K Sustainer Bass amp Treble Control VRG 9 10 Switch Power Swi
14. OS Glide Adjustment tune the TOS and Channel 1 to zero beat L1 TOS TUNING ADJUSTMENT This Adjustment is carefully set at the factory Should tun ing be necessary ground out any Channel 1 amp 2 Master Oscil lator output C for example Turn on the Ensemble push button with the High or Low pushbutton on It is suggested a tuning fork for a certain note be used C for example while holding down any C key on the keyboard Adjust the tuning coil with a non metalic screw driver until the proper pitch or frequency is acquired When this note is properly tuned the TOS tuning is automatically locked in L2 L3 CHANNEL 1 amp 2 TUNING ADJUSTMENTS Tune TOS as described for L1 Hold a key down and ground output of Channel 2 Master Oscillator Tune Channel 1 C Master Oscillator to zero beat with TOS Then ground output of Channel 2 C Master Oscillator Tune Channel 2 C Master Oscillator to zero beat with TOS Repeat this process with each note NOTE Like the TOS the Ensemble pushbutton and the High or Low pushbutton must be on before tuning GLIDE e al TOUCH m 2 VIBRATO LL _KEYERS Y 1281 touch l VIBRATO switcuers 27 sr lt OU AR PP cia jJ _ __ x BUSS DRIVERS PICH amp Low KEYSWITCHES 4 1 27 KEYBOARD BALANCE CONTROL 4 Tel r C3 C6 T s NN A c c
15. The String Thing The audience will turn their heads around looking for the orchestra when they hear the sound of the revolu tionary new Freeman String Symphonizer supports your act with the sounds of an entire string section violins violas even cellos And after the performance you can pack it up carry it out the door and load it in your car trunk Play a one finger melody for a solo violin effect Play yo quartets with just one hand Two hands can sound an entire string section Want more The polyvoice design makes each key sound like several violins at once So when you press the Ensemble tab just one A EA finger can play the sounds of a small string section And one chord comes like symphony The String Symphonizer s Reverb control lets you turn on some haunting concert hall acoustics And you can animate your sound automatically for a vibrato that takes fine violinists years to master You can even play a good old country fiddle sliding the sound with the Glide pedal Best of all the Freeman String Symphonizer is tough When you re on the road setting up and tearing down you Can rely on it like an old friend The next time you go on stage start pulling some new strings With the Freeman String Symphonizer You won t play second fiddle to anybody Freeman String Sympfionizer FRM S810 The audience will turn their he
16. ads around looking for the orchestra when they hear the sound of the revolutionary new Freeman String Symphonizer It supports your act with the sounds of an entire string section violins violas evencellos And after the performance you can pack it up carry it out the door and load it in your car trunk Play a one finger melody for a solo violin effect Play string quartets with just one hand Two hands can sound like an entire string sec tion Want more The polyvoice design makes each key sound like several violins at once So when you press the Ensemble tab just one finger can play the sounds of a small string section And one chord comes on like an entire symphony SPECIFICATIONS String Effect Selectors Low High Ensemble Touch Vibroro Speciol Effect Selectors Sustoiner On Off Switch With The String Symphonizer s Reverb control lets you turn on some haunting concert hall acous tics And you can animate your sound automatically for a vibrato that takes fine violinists years to master You can even play a good old country fiddle sliding the sound with the Glide pedal Best of all the Freeman String Symphonizer is tough When you re on the road setting up and tearing down you can rely on it like an old friend The next time you stage start pulling some new strings With the Freeman String Symphonizer You wont play second fiddle to anybody A
17. antess oth specified AU in migrolareds unirsi erms fled All mestured to ground with Simpson 290 VON See Party List tor Lomporteni part rt All Pusfibutton Sertches and shawn in pasction Me ata 11 glentsousty yro cded fram antl needs Dui trom 4 SCHEMATIC 2 fo Additional ne i Conta a ee SUSTAINER CONTROL v 49 High Kc ysentches C CI Buss Keying Line 92 Buss emn 019 tX 525 013 13 9Y 149 014 161 _ Cl 82 2 6 Buss 810 820 903 836 01 Low Key switches Touch vibrato Deisy 4 VRS Low Switch Contact See Ung 4 pr lo Additional 18 4 1 lauch viorato Switch Contact U 4 Oscillators 415 A 19 100 fa Animation Uscitistors 914 6 1 es Dug vIdMATO Animation Oscilistors 012 amp 1 Seo 0 1 Antmetion Oscilistors 010811 e Cortesi Lone Sustain HK 468 023 I LU c LX COLLECTOR 4 EN Laying Point 1 T om D wa 4 ao STRING ee Note TOS c 02 Cenerstors ma cs 02 String Keyers From Channel 1 C IK i C C See dy ubi f
18. apacitor Polystyrene 01 UF 2 1 2 33V 946 013181 103 Capacitor Polystyrene 012 UF 2 1 2 33V 946 013181 123 Capacitor Polystyrene 015 UF 2 1 2 33V 946 013181 153 Capacitor Polystyrene 022 UF 2 1 2 946 013181 223 Capacitor Polystyrene 560 2 1 2 33V 946 013181 561 Coil Oscillator Tuning Adj du thee dc be ES 952 009978 2 Coil Oscillator Tuning win ea oe eee d 952 009978 3 Coil Oscillator Tuning Adj 140 ET 952 018874 Diode A dcs eda OL TO Mori 919 004799 aos aa did A ak Vi 919 010873 IC TOS inda calura Le a e 991 018813 1 IC TOS ete AS aca as n Clea es 991 018813 2 Resistor WW 47 Ohm 2 924 015325 8 Resistor ii ch he ee pad 924 010471 221 Socket 906 018905 Transistor OSGCINATOR URINE nh d do a O4 8 23 991 008393 Transistor A 5 v ra wa sas 991 016727 Transistor Wave 991 015587 SWELL PEDAL ASSEMBLY Assembly SWel aci ali Ge Been uu q a 997
19. ard Touch Vibrato amp Glide Board Touch Vibrato amp Glide Board 32 37 40 47 49 57 NAME OF BOARD Preamp amp Reverb Board Preamp amp Reverb Board Preamp amp Reverb Board Power Supply Board Power Supply Board Power Supply Board Jb STRING SYMPHONIZER OSCILLATOR BOARD Q21 L2 1 of 12 1 of 12 019 D10 Q20 1 of 12 1 of 12 Q18 1C1 IC2 CHANNEL 1 06 05 09 04 02 08 CHANNEL 2 011 1 of 12 CAM R3 C15 C14 Q22 Q16 014 012 010 10112 R4 023 L3 017 015 013 011 1 12 1 of 12 PHOTOGRAPHS heey a wi Br Di poa z cL 2 7 H Fw Amar LS TEM e x un MR grs E i T E i i v TOS DIVIDERS 1 of 12 D20 61 CHANNEL 1 DIVIDERS 4 12 021 61 022 61 CHANNEL 2 DIVIDERS IC5 12 STRING SYMPHONIZER DIVIDER AND MIXING BOARD 17 TOUCH VIBRATO AND GLIDE BOARD Q26 Q28 Q29 Q30 36 Q Q35 033 1 032 03 01 Q3 VR1 5 01 02 18 06 07 04 08 05 o e o 9 o 9o shen SS vd See String Symphonizer Keying Chart n E d 2 hi A u
20. bases of the Touch Vibrato Switchers Q31 Q36 This turns the Switchers off allowing the animation oscillator to resume normal operation see circuit description on animation oscil lators The Touch Vibrato Delay Adjustment VR5 deter mines the length of time the oscillators remain off Turning on the Touch Vibrato Pushbutton also adds a 3 9K resistor to ground off the Animation Control VR2 raising the mini mum voltage on the base of the Animation Driver This allows the Touch Vibrato to be heard with the animation control in the minimum position 2 CIRCUIT DESCRIPTION Q38 042 STRING KEYERS Pressing a keyswitch with the High or Low pushbutton on applies positive voltage to a String Keyer circuit This allows the audio signal from the TOS Generators and the Channel 1 amp Channel 2 Generators to pass through the String Keyer and be applied to an Octave Collector Preamp Q37 SUSTAIN REGULATOR The Sustainer Control VR6 determines how hard the Sustain Regulator turns on This in turn controls the discharge rate of the sustain capacitors located at the anode of D19 As the base 01037 becomes less positive it turns on hard which grounds the Sustain Control Line and cancels sustain As the base of 037 goes positive the sustain and the control line moves farther from ground Sustain capacitors discharge on to the String Keyer circuits allowing signal to pass through the String Keyer after the Keyswitch is released creating a
21. ed by and to the specifications of the factory Order these parts directly from the factory since they would be difficult or impossible to obtain from other sources PARTS ORDERING INFORMATION When ordering parts be sure to include the following information 1 Model and Serial Number 2 Part Number 3 A description of the part 4 Specify how you want the part shipped Most special electronic parts and mechanical parts will have a part number stamped on them In the event that the part number is missing or you are unable to read the part number a complete description of the part and where it is used will allow the factory to fill your parts order When parts are ordered in the proper manner the factory is able to fill your orders promptly delays that might result are avoided ADDRESS PARTS ORDERS TO LOWREY ELECTRONICS SERVICE DEPT 4400 W 45th St Chicago Illinois 60632 IMPORTANT IN ANY CORRESPONDENCE CONCERNING THIS INSTRUMENT ALWAYS INCLUDE MODEL AND SERIAL NUMBERS 23 PARTS LIST TABLE OF CONTENTS CONSOLE ASSEMBLY 25 CONTROL PANEL ASSEMBLY uuu AAA 25 POWER SUPPLY BOARD ASSEMBLY 25 POWER SUPPLY CHASSIS ASSEMBLY 25 PREAMP REVERB BOARD ASSEMBLY 25 STRING SYMPHONIZER DIVIDER amp MIXING BOARD ASSEMBLY 26 STRING SYMPHONIZER
22. into the proper drive signal for the TOS Q7 ANIMATION DRIVER The Animation Driver supplies the operating voltage for the Animation Oscillators How hard the Driver turns on how much voltage is supplied to the Animation Oscillators is determined by the Animation Control VR2 08 019 ANIMATION OSCILLATORS Voltage from Animation Driver O7 is applied to these oscil lators This causes the Animation Oscillators to produce low frequency signals which are applied to the Channel 1 amp Chan nel 2 Master Oscillator circuits shifting the frequency of the Master Oscillators high and low creating an animation or vibrato effect 020 023 1 4 amp IC5 CHANNEL 1 amp 2 MASTER OSCILLATORS amp DIVIDERS The Channel 1 amp 2 Master Oscillators run continuously producing high frequency audio signals These signals are then applied to their associated IC Divider where the fre quencies are divided in half several times The outputs of Channel 1 amp Channel 2 Dividers are then applied to the String Keyers NOTE The Channel 1 Master Oscillators although they run continuously only have an output to the Dividers when the ensemble pushbutton is on SCHEMATIC 2 STRING KEYING amp VIBRATO With the High and or Low pushbutton on positive voltage is applied through the emitter base junction of the C3 C6 and C1 B2 Buss Drivers Q26 amp Q28 to the High and Low key switch buss bars Pressing a keyswitch lowers the voltage on the base of 0
23. is pressed a ground is applied to the Glide Switcher causing it to conduct applying negative volt to the bases of the TOS Glide Keyer 02 and the Channel 1 amp 2 Glide 2 TOS GLIDE KEYER CHANNEL 1 amp 2 GLIDE KEYER With the Glide Switch on negative voltage is applied to the bases of 2 amp from the Glide Switcher Q1 causing them to conduct When 2 amp conduct negative voltage is applied to their respective oscillators shifting the frequency and creating the Glide effect The TOS Glide Adjustment adjusts the amount of TOS frequency shift 04 06 1C1 1C3 HIGH FREQUENCY MASTER OSCIL LATOR BUFFER WAVE SHAPER TOP OCTAVE SYNTHESIZERS AND DIVIDERS With the ensemble pushbutton on the High Frequency Mas ter Oscillator creates a high frequency signal which is applied to the Top Octave Synthesizers amp IC2 via the Buffer 5 and Wave Shaper Here the signal is divided to create twelve specific octave frequencies which are applied to the IC Dividers These frequencies are then divided in half several times creating lower octave frequencies The outputs are then applied to the String Keyers The Buffer Q5 acts as an isolation stage between the Master Oscillator 04 and the TOS amp 2 preventing any change Master Oscillator frequency due to change in circuit load The Wave Shaper Q6 converts signal from the High Fre quency Master Oscillator Q4
24. nimation Volume and Tone Selectors Keyboard Balance Bass Treble Master Volume Dimensions Height 94 V2 with legs 778 without legs Width 38 Depth 23 Pilot Light 61 Note Keyboard Expression Glide Pedal Removable Music Rack Detachable Legs Removable Lid Output Jack to external amp Aux Jack for optional Cordovox Tone FREEMAN STRING SYMPHONIZER Distributed by Norlin Music Inc Weight 77 Ibs 7373 Cicero Avenue Lincolnwood Illinois 60646 STRING EFFECT SELECTORS SOUHD EFFECT SELECTORS VOLUME AND SELECTORS reverberation amimat on keytoard balance n Sty uae i es TENN 6 i i i Specifications String Effect Selectors Volume and Tone Selectors On Off Switch With Pilot Light Low Keyboard Balance 61 Note Keyboard High Bass Expression Glide Pedal Ensemble Treble Removable Music Rack Detachable Legs Touch Vibrato Master Volume Removable Lid Special Effect Selectors Dimensions Sustainer Height 3412 with legs Tone Cabinet Reverberation 778 without legs Animation Width 38 Weight 77 Ibs Dioduct ot Music Inc 7373 Cicero Avenue Lincolnwood Hlinois 60646 1974 MODEL CSS SERVICE MANUAL FRMS 810 Haring Sy mph ontyer se
25. r PNP Sustain Regulator OY on adem ere ak 991 020425 3 Transistor uuu acetate nal eS ae EAS o 025 27 i 9 8 3 te 991 020426 3 STRING SYMPHONIZER DIVIDER amp MIXING BOARD ASSEMBLY xeu ek e duo 020 21220 3229 99 bal 919 004799 IC DNQ 1034 5 ui ERA ua mu 991 013182 1 Socket det E id Q 906 018905 STRING SYMPHONIZER KEYING BOARD ASSEMLBY Capacitor Electrolytie TUF 20 otk RE OE AA aig 945 008895 11 Capacitor Electrolytic 2 UF 29V ida end 945 015619 Capacitor Electrolytic s UF 20V celeb OE 6 945 019366 Capacitor Electrolytic 6 20M sz s SUR 945 019366 1 Capacitor Electrolytic SUP 15M __ __ _ __ _ _ 945 019366 2 Capacitor Electrolytic 10 15 Lul ie ae 945 019366 3 Diode iS aa D18 19 23 919 004799 Transistor rai leda 038 42 991 008393 Preamip 043 49 991 018238 STRING SYMPHONIZER OSCILLATOR BOARD ASSEMBLY Capacitor Electrolytic CUF 20V 945 008895 11 Capacitor Electrolytie TAUF IV esce canak ee be 945 008895 4 Capacitor Electrolytic 2 UP 20V NP RA 945 008895 32 Capacitor Electrolytic 100 UF 200 CIALIS uus 945 020064 C
26. rom Channel 2 C o Generators wi cl UN I Note Dattad doa indicates 16x Octave 7 Frequency 1 1 9 to Keyer Oniy 4 7 023 on 2 2K COLLECTOR 6 T PREAMP I amp Tri 121 ux STRING R From 105 it 00 sa Generators Ses 1 1X fron co 021 String Keyers From Channel 1 AK Generators Octave 4 84 See Ow 1 tox From Channel 2 072 Generators Ses Dug 1 an Udon Ly Y trom 105 020 0K Generators 04 1 Other ex 248 String Keyers from Channel 1 IK Octave 83 Generstors CH Ses 045 1 wa From Channel 2 022 Generstors Ses 1 108 1 i IK K 02 OK 24K 10 i 94 Keying Point 1 29 121 120K t I suu From 105 ik 00 sor Kaye Cenerators Co 10 2 2 From Uther From Channel 1 8 String Keyers ve Octave 2 82 10 15 5 From Channel 2 m 022 Y Conerttors 10 amp Ses 1 10K 1 2 41 10 aK 47 023 pe da 1 98 27 ow 22 i PREAMP 10 4 OCTAVE Keying T 208 1 STRING f rom 105 GUI 00 sex Generttors e 10K 2 24 From Other Stri from DA String Cenerstors Ses 0 From Channel 2 Generutars 2 Ses Duo 4 7 STRING PREAMPS
27. s represent specific octave frequency and do not refer to a keyboard octave ENSEMBLE 2 All resistors 1 2 Watt 10 untess otherwise specified 3 All capacitors in microfarads unless otherwise specified E da 4 All voltages measured to ground with a Simpson 260 VOM 5 6 7 See Parts List for component part numbers eer H Pushbutton Switches are sh in OFF position oe te SYNTHESIZERS 158 For every woman who makes foo out of 0012 1 there is another woman who makes a man out of fool 13V 2200 amp 1 Capacitors Are Located On Various Di ider ie di Voltage Lines For Specific Locations See 47K String Symphonizer Board 1 0 5 GLIDE 470K 001 100P I 18 5 we 9 n 560P GLIDE TT C I D2 T i E pesg SWITCHER 9 02 1 3 WAVE Ping Y HIGH FREQUENCY SHAPER From 18 BK 105 MASTER OSCILLATOR Glide 9 E Tuning Adj MMC DEI Switch C R 140 uh 18 5V i To String Keyers See 3 47K See Dwg 2 b 1 5 10K ako 18 5V 18 V 100K 01 l 10 T D4 D5 06 07 08 09 CHANNEL 182 e 180 1800 1008 18000 18002 1800 GLIDE KEYER 5 MU 18 5 Channel 1 amp Channel 2 Master Oscillators I See Chart This See Note 1 1 Of 12 Channet 1 Dividers 18V 18V I En O 04 E
28. tch PusBBOEEOD ara arate e E SUELE POWER SUPPLY BOARD ASSEMBLY Capacitor Electrolytic 200 UF 25 Capacitor Electrolytic 350 UF 15V vacuo Ae Capacitor Electrolytic 500 UE 2 aa Electrolytic 1000 UF 40V Diode TP 026 3 Diode NAV d ad daa Zi iuuenes Sais ae eS Diode ZENG 19V wo sod Sob ues Se a be e ee dd hu Diode leher 20M uc sua Resistor WW 1 8 Ohm 2W us a a Resistor WW uu ac woe apan Transistor u ine d 62 5 Transistor ove onse oh side e em ERE Dl sir poda RED Transistor Regulator zg A os Sete di POWER SUPPLY CHASSIS ASSEMBLY Fuse o gt O Fuse SIO BIO eil TT TR TT Insulator TRANSITO y A A ES are A E e Jack Expression Socket Frans AD AAA Transformer 22450800 Ts esa ad doy uQ AE Transistor ag PREAMP amp REVERB BOARD ASSEMBLY Capacitor Electrolvtio 2 DF us ratus Capacitor Electroly
29. tic 10 UF 20 _ Capacitor Electrolytic 20 UF 20 lose GS fon Capacitor Electrolytic 200 UF 255 A raga Vani Capacitor Electrolytic 500 25 Coil e DiOdEe uit mad dur D1916 TZ 555555555 o Resistor WW ZW 2 2 0 dd e Resistor Arm Transistor Driver Preamp 51 53 57 Part Number 984 017447 997 020977 915 018239 939 020499 925 015652 5 925 015652 7 925 015652 9 960 010669 960 021004 945 008895 945 008895 42 945 008895 19 945 003861 1 919 010623 919 017406 9 919 017406 13 919 017406 10 924 010471 18 924 010471 10 991 020426 3 991 016727 991 020425 3 906 006303 939 013304 908 002346 910 010457 910 010878 906 013174 954 020498 992 020432 945 015619 945 008895 9 945 020428 945 008895 945 008895 19 956 018877 919 010873 948 018859 3 924 010471 151 924 010471 330 991 018238 PARTS LIST Schematic Part Part Description Reference Number PREAMP amp REVERB BOARD ASSEMBLY Continued Transistor Emitter 52 s ime asa ate he 991 008393 Transistor a u oe ee ers bed eet A E 991 015587 Transisto
30. xample ANIMATION 13V 043 DRIVER 135v Q7 D Switch Contact Channel 1 amp Channel 2 4 l p Di iders Except ek To Additional Animation Example Channel 1 2 2K From Touch Oscillators D Master Oscillator Vibrato Pushbutton 1 of 12 Channel 1 Master Oscillators See Dwg 2 n 2 DIO 56K aK 2 I 021 See Note 8 Vibrato Switchers cols See Dwg 2 L 100K Y a fa ANIMATION Jo Typical Outputs For Channel 1 OSCILLATORS Animation Connects To Connects To Glide amp Channel 2 Dividers past Ose ator 1 of 6 Oscillator Ch 1Gen 2 Diode pe chann Tuning Component Chart 6 619 Waster Oscillator 08 01 0849 1 of 12 Channel 2 Master Oscillators C 360P cont T ye 10K Tuning Y awan F 100K T GLIDE TONE GENERATORS t G 7 10412 Channel2 016 amp 17 X 022 Dividers ANIMATION amp DIVIDERS Dwg No 1 Model CSS LOILVN3HOS PTE A Ceo MS X et w ALT H up TE gt Lo P w m o Mur xi 100K Baras Numbers Indicate The Octave frequency From the string amp 105 Cenerstors See Uag AU cesssture L 2 Watt UD
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