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YAMAHA CS-10 Manual

1. 2893156 250 2015 4021 4022 NEE X0i 8 H13 1 VIA rO 00892344 E __33 o 0 5 1 8 4 3 ips Ag ee 6 61 ud m 13437 EE vances 3 5 66 0 42 4 de 993 3 500 as 98 4 o E m a n a soubjssy Key se si 5 s JeziseujuAS 3 i INNI 4 ie i 9 1308 1814 o 8 00 130 amp 439 1 4 lt Sa duwy 9Jg 0 1 3 2 7 4 208 2 5 POBA 49 2 0 48 1 1 NrixoWasw 1 1001 5 01 53 V CO Circuit Board 6 Wiring Note 1 Transistor 5 225 9 1 4 7 25 561 2 3 5 6 8 25 458 25 30 2 IC 24800 2 TC4049 1G00153 4 1600150 1 5 7 TA7504 6 7505 128 11 NJM4558 Ex Diode 44 zt D 181555 ZD1 181715P 202 3 0227 gt Resistor 531 marks 0 1 marks 0 5 marks 1 m A marks Tantalum capacitor 6 SW2 4 2 circuit 2 contact NON SHORTING 7 LED SLP1328 HHI 4 2E V 5 Eo d 2 7 211 D 2 j 271 o e oie 282480 00104666
2. 13 5 10 S 1001 Standerd for circuit inspecpion and adjustment ADJUSTMENT OF VCO SECTION 1 Power Supply for Key Assignor 7V Adjustment Make sure that voltage of 6 9 0 6V is present at TP7 7N Adjustment Make sure that voltage of 6 9 0 6V is present at TP8 2 Key Assignor Clock Make sure that a waveform as in the figure below is obtainable at TP9 sete 6 9 0 6V M 6 9 0 6V f 9 1KHz 3 Key Assignor Set the Pitch Bend Lever to 0 position VR terminal gt 2 000V turn on the key then make sure that voltage of 500 0 5mV is present at TP1 Adjust VR1 until TP2 has the same potential as that at TP1 Then make certain that 250 0 25mV is present at TP3 and adjust VR2 so that the PO terminal has the same potential as that at TP3 Adjust VR3 until the potential at the VO terminal becomes identical to that at the PO terminal When the Pitch Bend Lever is set to position the potential at each point mentioned above should be doubled with the lever set to the potential should be reduced by half Then turn off the key turn on the Ce key and confirm that 2 00 0 002V is present at the VO terminal 4 Key Mode Change Circuit Turn on and off the Ca and Cs keys as in the figure below change the key mode from SINGLE to MULTI and make sure that the KTR terminal output is as shown in the figure During SINGLE Mode as long as a key remains depressed operati
3. 1 0 0 5 10 5 1001 SPECIFICATIONS 2 1 Keyboard VCO Section 1 Feet 2 Tune 3 LFO Mod 4 PW PWM 5 Portamento 6 Pitch Bend 7 Output Waveform VCF Section 1 Cut Off Frequency 2 Resonance 3 LFO Mod 4 Envelope Generator EG Initial Level IL Attack Level AL Attack Time AT Decay Time DT Release Time RT 5 EG Time 6 Output Selection Section 1 LFO Mod 2 Envelope Generator EG Attack Time AT Decay Time Sustain Level SL Release Time RT 3 EG Time 4 Volume Trigger Selection 1 EXT 2 SINGLE 3 MULTI LFO Speed Waveform EXT Trigger Level Sensitivity Noise OUT PUT LEVEL IMPEDANCE Power Requirements 37 keys C3 3 octaves 2 4 8 16 32 and 64 selectable 50 50 cent variable 60 cent Max 50 90 variable 75 20 Max with LFO sine wave applied to input Short Long 0 4 sec 1 OCT 1 OCT 20 cent Square wave saw tooth wave 10 3 0 5 0 5 1m sec 1 sec 10m sec 10 sec 10m sec 10 sec Normal X5 selectable LPF BPF and HPF selectable AM modulation 100 Max 1m sec 1 sec 10m sec 10 sec 0 10 10m sec 10 sec Normal X5 selectable 0 Trigget occurs when EXT input is applied When several keys are depressed simultaneously only the first key depressed causes trigger to be generat
4. make sure that a voltage of 15 0 15V is present across 15V and E terminals 2 10V Adjustment Adjust VR2 until a voltage of 10 00V is present across 10V and E terminals 3 Load Characteristics When no load is applied the fluctuation should be smaller than 0 5 and should show neither oscil lation nor abnormal voltage Make sure that the regulator s response to load fluctuation is within 50m sec When connecting Mylar capacitors of 0 47uF across each terminal and the E terminal make sure that neither oscillation nor abnormal voltage is generated and the response time is within 50m sec 4 First Stage Voltage and Output Voltage When load is fully applied the output voltage fluctuation should be smaller than 0 1 for the first stage voltage fluctuation of 15 and the regulator should respond within 50m sec to a drastic change in the first stage voltage 5 Ripple Noise When load is fully applied make sure that ripple noise smaller than 5mVp p is present at each output terminal
5. 22 zlz Cathode mark 8 P 7 2 View from the printed pattern side of the circuit board Na LAPS RISE CT KEP NA80277 77 A VCO II 1600150 TeV Eek Input of the control voltage The frequency is variable in accord ance with the voltage supplied VC1 100K Input of the voltage 0 10V is provided 2 GND Earth Capacitor for determination of the frequency 4 Vee 15V input power source 5 15V input power source 6 SIO Output of sine wave 7 50 222 Output of sawtooth wave 8 ladj Setting for standard electric current The standard electric current is set so as to be the output 200Hz when VC1 is 10V and VC2 is zero volt CS 10 S 1001 VCO III 1G00153 This IC is used for voltage controlled oscillator Many defferent frequencies are produced by the vol tage supplied L EU Resistor for determination of the feet The electric current is provided to the pin from transposition changing circuit so that the octave can be determined 4 KM aus Input of the key voltage The input of the voltage is provided to the pin in corporation with the keys held down High voltage High frequency Low voltage Low frequency 0 250V 130 8Hz C2 261 6Hz C3 523 2Hz C4 1046 0Hz C5 4 000 2093 0Hz C6 Transposition normal 3 Zero adjustment of input 4 buffer circuit 5 Vee 15V input power source 6 C
6. Non Shorting SW3 contact Shorting View from the printed pattern side of the circuit board 80279 75 A VCA EG 1600159 This generates envelope wave shape which is supplied to and control the tone volume T E22 Input of initial level Fixed to OV 2 Bl Input of buffer amplifier 3 OUT The buffer amplifier is built in for the purpose of matching inpedance Output wave shape 1DT AT 2DT R 4 GND Earth 5 15V input power source 6 61 Gate 1 7 G2 Gate 2 G2 Key ON OFF data 8 Vee 15V input power source 9 AT oue Input of buffer voltage for determi nation of attack time Input of the voltage between zero V and 10V is provided and the attack time is controlled from 1 mS until 1S AT 10 1DT Input of buffer voltage for determi nation of decay time Input of the voltage between zero V and 10V is provided and the decay time is controlled from 10 m second until 10 second 10 11 201 Input of buffer voltage for determi nation of release time Input of the voltage between zero V and 10V is provided and the time key off untill release is controlled from 10 mS until 10 S R CS 10 S 1001 12 TC Output of time control Output of the DC voltage is pro duced so that the each time of Attack 1st Decay and 2nd Decay are controlled Time y B control D vol
7. black wires are connected to E on circuit board One goes to each terminal of A and FG circuit boards In this case the coding system is as follows Color of wire Number of stands contained in the core In case of 8 cores the number is not shown Number of wires i BL12x2 RA A E 2 RA FG E 2 L Terminal point physical eyelet space location Terminal reference Circuit board Unit Board Rack general physical location T Terminal point shown the board The pattern shows the view Solder eyelet space number from the side parts mounted Terminal E shown on the board SYMBOL DESCRIPTION B E ECB E Emitter Transistor C Collector Capacitor 4 Electrolytic capacitor Polarity Amark Tantalum capacitor 5 DGS 8 Source NP mark Nompolar capacitor G FET G Gate D D Drain Myler Ceramic and Polystyrene Capacitor B B Break oB Diode M Switch d oT T Transfer Zener Diode M ABBREVIATIONS OF WIRE COLOR IN ELECTONE BLACK ORANGE OR BLUE BE WHITE WH PINK PK WIRE COLOR Musical Note Indication C D D E FH GH A B DUM KUNDE A ELE BR RE OR YE GR BE VI GY WH GG SB PK NOT Exiusive OR Inverter dD Truth Table Truth Table A B Y A 0 0 1 0 0 1 1 1 7 ED d Truth Table Truth Table A B 0 0 0 0 1 0 1 0 1
8. capacitor 3 A marks Tantalum capacitor 4 LED SLP1328 HHI 4 t Cathode mark VIA 2 2 Slide SW 4 24 FSW 5 1 3 contact NON Shorting Sw2 2 contact Shorting R1 R2 Rankoricr 81 88 470 B 430 390 1600151 El Input voltage for level control Input of the contro voltage is pro vided for changing the level expotenen tially OdB Fixed 2 Ll Input of level control voltage Input of the contro voltage is pro vided for linear change of the level Input LI wave 0 out 3 HIN Input Input of the level modulated signal is provided INPUT OUTPUT MM NM From LI VCA EG 4 IN Negative feed back Normally unused 5 Vee 15V input power source B VOC ae 15V input power source 7 GNO Earth 8 OUT Output Output of the following wave shape utput Wave Shape is produced For checking connect the resistor of 10K 30K ohm as illustrated R 10 12 13 16 5 10 S 1001 VCF 1600156 SUA uus Signal Input Input signals from VCO and WSC are provided to this pin COEM Key voltage input In order to change the tone color according to the tone range of key board the degignated voltage of the key will supplied to the pin 0 25 4 0V E Adjustment of the cut off frequency Set the control currency of the cut off frequency ME 2255 Inpu
9. vided for linear change of the level Input wave i 3 HN Input Input of the level modulated signal is provided INPUT OUTPUT From LI 4 IN Negative feed back Normally unused 5 Vee 15V input power source 6 Vcc 15V input power source 7 GND Earth 8 OUT Output Output of the following wave shape utput Wave Shape is produced R B For checking connect the resistor of 10K 30K ohm as illustrated CS 10 S 1001 Explanation for CB VCA Circuit Diagram 15 15 volume s E s PNI 51 8 HA T 1 0 4 WHoAL RP J6 2 OUT PUT vcr LFote SY o LO 5 B50K Control 1021V HOLD SN w KEYON KEYOFF EG swi S TIME NOR SUSTAIN LEVEL PNI 15 15 38 B T i 9 0 5 2 ATTACK DECAY RELEASE 9 1 0180 __ Trigger TIME DECAY vco m ETRG3 PEER o LED __ RP J3 2 9R oKTR TRIGGER IN Note Tr 28C458 vco I si 3 BRoSL o Note 1 Transistor Tr1 2 3 25 458 2 IC 1C1 3 4 1G00151 2 1600159 KEC 90097 A Circuit Board amp Wiring Note 1 Transistor FH 2722445 Tr1 2 3 25 458 2 IC 1 1 3 4 1600151 2 1G00159 3 marks Tantalum capacitor 4 SlideSW A 24 FSW SW1 2 2contact
10. E o Vit ice PK vco T vR 2 38 5 PN2 vR2 2 YE o 3 gt o Y PITCH BEND 5 S 1 IC 1600156 BR pN2 vR2 4 PN2 VR2 3 2 1G00151 IC3 1600152 4 5 NJM4558 2 R1 R2 Rank R1 R2 2 2K 470 2 0K 430 1 8K 390 ZJ 22 KEC 90096 75 As This VCF EG 1G00152 IC generates envelope wave shape which is supplied to VCF and control the tone color NC Not connected 4 Bl uus Input of buffer amplifier Output wave OUT Output of buffer amprifier The buffer amplifier is built in for the purpose of matching inpedance M AT RT 4 shape KEY ON KEY OFF 4 GND Earth 5 Vec 15V input power source 6 G1 Gate 1 7 G2 Gate 2 10 11 G2 Key ON OFF data Vee 15V input power source us Input of buffer voltage for determi nation of the attack time Input of the voltage between zero V and 10V is provided and the attack time is controlled from 1 mS until 1S 1DT Input of buffer voltage for determi nation of the decay time Input of the voltage between zero V and 10V is provided and the first decay time is controlled from 10mS until 10 S 10 0 3 2 Input of buffer voltage for determi nation of the release time Input of the voltage between zero V to 10V is provided and the time from KEY ON until release i
11. HPF BPF LPF VCO FEET and Switches to LPF 27 0 and 10 respectively turn on the key then adjust VR9 for the maximum value and VR10 for 1 Vp p until a waveform as in the figure below is obtained at the O terminal O terminal Set the Cut Off Frequency Vol to H position turn on a key then make certain that a waveform as Fig 1 is obtained Set the Resonance Vol to L position and ascertain that a waveform as shown in Fig 2 is obtainable 0 25 V 0 05 Fig 1 Fig 2 ede CS 10 S 1001 3 Standard Voltage Generator Circuit Set the Pitch Bend Lever to 0 and then adjust VR14 VR15 and VR16 until 1 00 0 001V 2 00 0 002V and 4 0 004V are obtained respectively at VRO terminal eR ue A element 4 00 0 004V V R16 2 00 0 002 VR15 i 1 00 0 001 CS 10 S 1001 ADJUSTMENT OF VCA SECTION 1 Envelope Generator Circuit a Adjust the Attack Time Vol until 8 0 0 1V is present at TP2 Set the Decay Time and Release Time Vol to S Sustain Level Vol 0 and NORMAL X5 Switch to NORMAL turn key with OV present at TRO terminal then adjust VR7 until 200 20mV is present at TP3 b After the adjustment in item 1 a is completed turn on a key and make sure that a waveform as in Fig 2 is obtained at TP3 In this case adjust VR8 until T equals 4m sec Adjust the Attack Time Vol until
12. VCO IV H15 7 151 Tr2 250458 05 0225 6 VCO III 15 1 12 151 1 Tr3 2SA561 06 7 WZ150 YE12 Tr4 2SA490 D8 10E 1 PN3 PL 15 OR12 9 Tr5 25 509 4 Fus E 2 X VCO V 10 4101 North European British 0 5 MINI Other 0 5A UL 11 80280 77 A CS 10 S 1001 REAR PANEL Circuit Diagram EXTERNAL TRIGGER KEY VOLT OUT PUT 0720 IN OUT IN OUT IN Jl J2 J3 44 45 2131 GR 000 102 7 VCO V KTR 3 VCO I VO I9 20 9 5 842 vCO II E 6 vco m 3 8U Viti8 Vix VCO II ETILD VCA KTR 2 VE RB KEC 90100 75 A REAR PANEL circuit Board amp Wiring E ez 85 5 rou ow KEP NA80282 75 12 CS 10 S 1001 Key Switch circuit Diagram 1 Kiit7 I 0 1 215 TET H 1 3 vco 1 K3202 98 m Y 1 vCO I 0 5 vco I D 5 98 VCO I 0 6 1 7 vco I F 8 25 veo I F 9 REQRE REAR R Ri os __ o ve VL VU VI PN2 circuit Diagram PORTAMENTO PITCH BEND VR1 VR2 3 Eo 2 N N 1 58 VCO I PI 20 VCO II PO 4 VCF 2V I VCF 4V I2 1 0 88 VCF VRII3
13. YAMAHA 5 10 SERVICE MANUAL 5 10 S 1001 INDEX CORDING GUIDE 51 l DISASSEMBLY PROCEDURE 2 SPECIFICATIONS WO 255522255552 ON ee ees 3 PANEL LAYOUT UTSJb Ip FO B oun ewe ACA ROO Bc a ta 4 VCO Circuit Diagram 5 VCOCircuit Board amp Wiring VCOY 6 VCF Circuit Diagram 7 VCF Circuit Board amp Wiring 8 VCA Circuit Diagram 9 VCA Circuit Board amp Wiring VC A Y 10 REG Circuit Diagram testi aes 11 Circuit Board amp Wiring 11 REAR PANEL Circuit Diagram 17 P NRIVY 12 REAR PANEL Circuit Board amp Wiring U7 VXJVz 12 KEY SWITOH PN2 Circuit Diagram Laurus x aA SEU IRA a A RACER EG 13 Standerd for circuit inspecpion and adjustment 7 14 20 PARTS LIST 3 7U A F 5 10 S 1001 CORDING GUIDE CIRCUIT BOARD AND WIRING Two 2
14. a voltage of 3 0 0 1V is present at TP2 If T is longer or shorter than 125m sec adjust VR9 so that T becomes even longer or shorter Then supply 8V to TP2 and adjust for 4m sec Repeat the adjustment until both T s are within 5 TRO terminal TP3 c Make sure that becomes 3 3 6 1 times as large when the 1 5 Switch is set to position 2 VCA Circuit a Set the HOLD EG Switch and LFO MOD Vol to Hold and 0 respectively then adjust VR10 until 2 5 0 1V is obtained at TP1 b After the adjustment in item 2 a is completed apply a sine wave of 1kHz to the terminal Then set the VOLUME to the 10 position and adjust VR12 until a sine wave of 1 5 0 2V is obtained at the OUT terminal c Set the LFO MOD Vol to 10 apply a sine wave of 100Hz 3Vp p to the LFO terminal then make sure that a waveform as in the figure below is obtainable at the OUT terminal Then apply OVp p to the AI terminal and adjust VR 13 until a waveform having the smallest peak to peak level is obtained at the OUT terminal 2 5 0 5 3 LED Lighting Circuit Turn a key on and off with OV and 5V present at the TRO terminal and confirm that the LED lights in accordance with the key operation 5 10 S 1001 ADJUSTMENT OF REG SECTION 1 15V Adjustment 4 15V Adjustment Adjust VR1 until a voltage of 15 00V is present across 15V and E terminals Then
15. djust the ratio 1 5 8 5 b Set the FEET and PW PWM Vol to 487 and 0 Then make sure that a waveform as in Fig 1 or 2 is obtainable at the OUT terminal when the or 1 Vol is set to 10 150 30mV Fig 1 Fig 2 15 5 10 S 1001 7 Noise Generator Circuit Set the EXT NOISE Switch to Noise position and EXT NOISE Vol 10 position then adjust VR 10 so that a waveform of 2 1dBm as shown the figure below is obtained at TP5 2 14 8 EXT Amplifier Circuit a Apply a sine wave of 1kHz 30dBm to the El terminal and make sure that the same waveform having 10 2dBm is obtained at the terminal Ascertain that output of 10 2dBm is obtained at 20 terminal 9 EXT Trigger Circuit Apply a sine wave of 1kHz 14dBm to the terminal set the Trigger Level Vol to 0 position then make certain that the potential at the ETR terminal varies as shown in the figure as the Trigger Level Vol is turned clockwise 240 180 120 90 45 0 VR angle 0 45 90 120 11 3 pin input ETR output 10 LFO Oscillation Circuit Set the LFO Speed Vol and U IX Switches to S and N positions and make sure that a wave form in Fig 1 is obtained at the LFO terminal Adjust VR12 until the frequency becomes 0 1 2 Then set the LFO Speed Vol to and adjust VR13 until the frequency becomes 100Hz In this case lig
16. ed Each key depressed permits trigger to be generated with priority given to upper tones 0 1 100Hz Sine wave and saw tooth wave selectable 0 and 20dB selectable White noise oscillation OdBm 600 2 20dBm 6002 Normal AC 50 60Hz 12W ICs Transistors and Diodes Employed Dimensions Weight 18 ICs 17 transistors and 15 diodes 710mm W x 290mm D x 155mm H 8 kg approx PANEL LAYOUT 0 10 TRIGGER LEVEL NOISE GENERATOR PORTAMENTO PITCH BEND 09 VOLTAGE CONTROLLED OSCILLATOR PANEL 1 PN1 5 10 S 1001 EXTERNAL REAR PANEL RP VOLTAGE CONTROLLED FILTER LFO MOD CUT OFF FRQ RESONANCE 0 5 0 t S INITIAL LEVEL ATTACK LEVEL ATTACK TIME DECAY TIME OF VOLTAGE CONTROLLED AMPLIFIER LFO MOD Xx xx 0 t 0 10 5 t DECAY TIME SUSTAIN LEVEL RELEASE TIME 5 V 651 56006 2 4 vsL2c0 22802 SSSPWIN LL 821 4914151 102 506 1 921 66 T g vOSLVL 1501 SISE Pom 0510091 01 891 0091 2I 06352 134 690921 221 857052 89921 O08VCWA 121 19852 soysisuesy 196611 03345 031 _ mns JIAO 389 718 931 2 1800 40 I E Nd SION 03395 5 041 QUA s si 3SION SNIS 39A 9S ON 031 39
17. ht emitting diodes should light according to the frequency Confirm that a waveform as in Fig 2 is obtained when J N Switch isset to position Fig 1 Fig 2 S46 5 10 5 3 1001 ADJUSTMENT VCF SECTION 1 Envelope Generator Circuit a Adjust the Attack Time Vol until a voltage of 8 0 0 1V is present at TP2 Set the Decay Time and Release Time Vol to S Attack Level and Initial Level Vol to 5 and NORMAL X5 Switch to NORMAL turn on a key with OV being present at the TR terminal then adjust VR11 until a voltage smaller than 0 50mV is present at b Turn the key on and off with OV and 5V present at the TR terminal and make sure that a wave form as in Fig 2 is obtained at TP3 In this case adjust VR12 until T equals 4m sec Adjust the Attack Time Vol until a voltage of 3 0 0 1V is present TP2 and depress a key If T is longer or shorter than 125m sec adjust 13 so that T becomes even longer or shorter then supply at TP2 and adjust for 4m sec Repeat the adjustment until both T s are within 596 OFF TR terminal c Make sure that T becomes 3 3 6 1 times as large when the 1 5 Switch is set to X5 position 2 VCF Circuit Set switches as in 1 a with the LFO MOD Vol set to 0 position Adjust the Cut Off Frequency Vol until 5 0 is present at TP1 and adjust the Resonance Vol until 5 0 0 1V is present at TP4 Set the
18. ng other keys has no effect on the KTR which is kept ON During MULTI Mode depressing keys successively permits KTR to turn ON one after another with priority given to higher tones 14 CS 10 S 1001 5 VCO III a Adjust the TUNE Vol until a voltage smaller than 0 5V is present at TP10 set FEET SW LFO MOD and PW PWM Vol to 87 0 and 0 respectively turn on the Ce key and apply a voltage of 2 00 0 002 to the VI terminal Now adjust VR5 so that a waveform of 2107 28Hz 0 1 as shown in the figure below is obtainable at TP4 Turn on the C3 key apply 250 0 25mV to VI terminal then adjust VR4 so that a waveform ot 263 41Hz 0 196 is obtainable Repeat these adjustments until the frequency error becomes 0 1 1441V b Turn the Ce key then make sure that the frequency ranges from 2169 to 2194Hz or from 2024 to 2047 when the TUNE Vol is set to the or position c Set the TUNE Vol to the center position and confirm that the frequency varies as shown in the table below Frequency Hz 260 38 266 47 523 79 529 87 1047 57 1059 74 2107 28 0 1 4190 28 4238 96 8380 55 8477 93 r 6 Waveform Converter Circuit Set the FEET PWM PW and PW PWM Vol to 487 PW and 10 positions respectively then adjust VR9 until a waveform as shown in the figure below is obtainable at TP4 MEIV 0 LA MEIV A
19. om Phase compensation for input buffer amplifier Normally the output KV 1V is supplied to the pin 7 OUT Output 3 5Vp p As to the frequency refer to the Pin 2 KV 8 Earth 9 Input of the standard voltage 10 CT Circuit for time constant The following wave shape is produced N 11 Determines the discharging voltage level 32 Input for the comparator Input of the wave shape NN is provided from the pin no 14 TO 13 Iref Input of the standard electronic current 14 TO Output from time constant circuit The following wave shape is produced 15 Input for vibrato control wave Input of the control wave is provided by VCO lever of SUB OSC 16 Vcc 15V input power source 6 5 10 S 1001 Explanation for 1 CHA VCF Circuit Diagram RP J5 2 YL 66 VCO I OUT 3 KEY VOLT IN VCA I LFO 9 VCA I AIC0 1 1 VR2 BIOK VR3 BIOK TP LFO CUT OFF PNI Note RD RD 1 5tiv 5 0 41 05 10 10 VR4 BIOK VRS BIOK 1600151 KPNI LEVEL xt 8 5 5 zg 10 10 718 Lh Le LR O T 15 t DECAY RELEASE TIME TIME TIME PNI PNI 1 80 3 Standard m 5 Voltage 10 m Generation _ Buffer 5 PN
20. s con trolled from 10m second until 10 second KEY OFF 12 TC Output of the time control Output of DC voltage is produced so that the each time of attack 1DT and 2DT are controlled 01 99 y 1 LL control 1 voltage The higher the voltage the shorter the time and the lower the voltage the longer the time 13 EC Output of level control Output of DC voltage in produced so that the AL and SL is 5V 5 level Piel ae BV control r voltage 0 5 higher the voltage the higher the level and the lower the voltage the lower the level 14 Input of butter voltage for determi nation of attack level Input of the voltage between OV 10V is provided and the attack level is controlled from OV until 45V HFA 15 SL Input of buffer voltage for determi nation of the sustain level Normally fixed to zero O volt 5V OV SL 5 16 IL Input of buffer voltage for determi nation of the initial level Input of the voltage between zero OV and ten 10V is provided and the initial level is controlled from zero to minus 5 volt 5 VCF circuit Board 6 Wiring View from the printed pattern side of the circuit board 5587 8588 CS KEP NA80278 75 A 9 Note 1 IC 1G00156 2 1600151 1G00152 1C4 5 _ NJM4558 2 K marks 1000pF ceramic
21. t of the cut off voltage Input voltage of cut off frequency is supplied to this pin so that the tone color can be changed The center point of the cut off frequency can be also set When the VK is 0 25V and Vf is 5V the cut off frequency is set to just 1KHz 15V input power source Q adjustment The Q control current sets the Q equal to 5 when va is O volt Input of the voltage for control Q is variable according to the control voltage supplied When the control voltage is OV Max Q 5 When the contro voltage is 10V Min 0 5 GND Earth Q feed back This is the feed back output pin for the Q control by which the Q is determined mm Low pass output 6dB 1V The output of lower fre quencies are produced e QE ues C pin for determination of the cut off frequency 15V power source Band pass output The output of intermediate frequences produced uuo C pin for determination of the cut off frequency uus Hi pass output 6dB 1V The output of higher fre quencies are produced Input of feed back The input signal for determination of cut off frequency 1600151 LEP iuo Input voltage for level control Input of the contro voltage is pro vided for changing the level expotenen tially OdB Fixed Eu Input of level control voltage Input of the control voltage is pro
22. tage i The higher the voltage the shorter the time and the lower the voltage the lon ger the time 13 LC Output of level control AL Level Y SLi control y opem 410V voltage 0 Output of the DC voltage for AL and SL control is provided The higher the voltage the higher the level and the lower the voltage the lower the level 14 Not connected 15 Sb a8 Input of buffer voltage for determi nation of the sustain level Input of the voltage between zero V and 10V is provided so that the sustain level can be controlled 10 0 16 Not connected 10 Japan Spec US American and Canadian Spec GA80640 POWER SW BR 12 5121 1200 0 033 1202 0033 0 5 ACTUAL CONNECTIONS ON VOLTAGE SELECTOR 240V area 220V area I3OV area 10 4 4 toy 5 10 S 1001 4 4 1 xM Circuit Diagram Regulator 15V Regulator r 4 0 47 Tri 0224 DI 0 5A 15 0 5 Le tq x x EN gt a x N KEC 90098 75 REG circuit Board amp Wiring Heat Sink 80277 AC IN BL12 VCO V E 1 1 0 Note 3 Diode 5 4 zt 1 IC 1 2 NJM4558 D1 10DC 1 1 8512 E2 6 2 Transistor 27225 D2 TODC 1R BR12 250235 03 4 9 151555

YAMAHA CS-10 Manual

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