Electro-Voice CPS 1 Service Manual Download Page 15

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170074

CPS 1 US 120V POWER-AMP

Pos. Nr.
Ref. No.

Best. Nr.

Part No.

Bezeichnung

Description

Q0012

307150

TRANS BC 337-25 TO 92

transistor BC 337-25

Q0017

307150

TRANS BC 337-25 TO 92

transistor BC 337-25

Q0018

307430

TRANS BC 327-25 TO 92

transistor BC 327-25

Q0019

307430

TRANS BC 327-25 TO 92

transistor BC 327-25

Q0020

301235

TRANS BD 242 B

transistor BD 242 B

Q0021

307150

TRANS BC 337-25 TO 92

transistor BC 337-25

Q0022

301236

TRANS BD 241 B

transistor BD 241 B

Q0023

307150

TRANS BC 337-25 TO 92

transistor BC 337-25

Q0100

348421

TRANS 2N 3906

transistor 2N 3906

Q0101

335763

TRANS 2N 3904

transistor 2N 3904

Q0103

330264

TRANS J 111

transistor J 111 A

Q0104

335763

TRANS 2N 3904

transistor 2N 3904

Q0105

348421

TRANS 2N 3906

transistor 2N 3906

Q0106

348422

TRANS MPSA 42

transistor MPSA 42

Q0107

348423

TRANS MPSA 92

transistor MPSA 92

Q0108

335763

TRANS 2N 3904

transistor 2N 3904

Q0109

348421

TRANS 2N 3906

transistor 2N 3906

Q0110

348422

TRANS MPSA 42

transistor MPSA 42

Q0111

348423

TRANS MPSA 92

transistor MPSA 92

Q0112

335763

TRANS 2N 3904

transistor 2N 3904

Q0113

348421

TRANS 2N 3906

transistor 2N 3906

Q0114

335763

TRANS 2N 3904

transistor 2N 3904

Q0115

348421

TRANS 2N 3906

transistor 2N 3906

Q0116

338869

TRANS MJE 350

transistor MJE 350

Q0117

338868

TRANS MJE 340

transistor MJE 340

Q0118

348409

TRANS 2SC 4793

transistor 2SC 4793

Q0119

348421

TRANS 2N 3906

transistor 2N 3906

Q0120

335763

TRANS 2N 3904

transistor 2N 3904

Q0121

335763

TRANS 2N 3904

transistor 2N 3904

Q0122

348421

TRANS 2N 3906

transistor 2N 3906

Q0123

351981

TRANS MJL 3281 A

transistor MJL 3281 A

Q0124

351982

TRANS MJL 1302 A

transistor MJL 1302 A

Q0125

331657

TRANS MJ 15022

transistor MJ 15022

Q0126

331658

TRANS MJ 15023

transistor MJ 15023

Q0127

331657

TRANS MJ 15022

transistor MJ 15022

Q0128

331658

TRANS MJ 15023

transistor MJ 15023

Q0129

331657

TRANS MJ 15022

transistor MJ 15022

Q0130

331658

TRANS MJ 15023

transistor MJ 15023

Q0131

331657

TRANS MJ 15022

transistor MJ 15022

Q0132

331658

TRANS MJ 15023

transistor MJ 15023

Q0135

348422

TRANS MPSA 42

transistor MPSA 42

Q0136

348423

TRANS MPSA 92

transistor MPSA 92

Q0137

348423

TRANS MPSA 92

transistor MPSA 92

Q0138

348422

TRANS MPSA 42

transistor MPSA 42

Q0139

307911

TRANS BF 393

transistor BF 391

Q0140

307911

TRANS BF 393

transistor BF 391

Q0141

348423

TRANS MPSA 92

transistor MPSA 92

Q0142

348423

TRANS MPSA 92

transistor MPSA 92

Q0143

348421

TRANS 2N 3906

transistor 2N 3906

Q0144

348421

TRANS 2N 3906

transistor 2N 3906

Q0145

335763

TRANS 2N 3904

transistor 2N 3904

Q0146

306928

TRANS BC 560 C

transistor BC 560 C

Summary of Contents for CPS 1

Page 1: ...SERVICE MANUAL CPS 1 CPS 2 CINEMA PRECISION SERIES ...

Page 2: ...m output power 4 Ω Input Sensitivity 0dBu 775mV at rated output power 4 Ω 1 kHz THD at rated output power 0 05 MBW 80kHz 1 kHz IMD SMPTE 0 08 60 Hz 7 kHz DIM30 0 03 3 15kHz 15 kHz Crosstalk 80 dB ref 1kHz at rated output power Frequency Response 1dB ref 1 kHz 13Hz 45kHz Power Bandwith THD 1 ref 1kHz half power 4 Ω 10Hz 50kHz Input Impedance 20Hz 20 kHz balanced 20kΩ Damping Factor at 100Hz 1kHz 30...

Page 3: ...the XLR type connector R Q 50 Ω the AMPLIFIER PCB printed board assembly is provided with service connectors CNS1 CNS2 CNRC PIN assignment PIN assignment PIN assignment 1 Vcc 1 LIM A Switch 1 LIM Out A 2 BIAS A 2 15V 2 LIM Out B 3 BIAS A 3 LIM B Switch 3 Standby via RC 4 FAN Voltage 4 15V 4 Standby LED 5 Vcc 5 AGND 5 Vss 6 BIAS B 6 Speaker Out A 6 Vss 7 BIAS B 7 Relais Protect 7 n c 8 Temp Heatsin...

Page 4: ...est both power amplifier channels testing without load resistors 1 Drive the power amplifier input with a burst signal f 1 kHz 10 cycles rate 0 5 sec 2 and U E 10 dBu 2 Monitor the output signal via oscilloscope After 4 5 signal periods the limiter controlled the major distortion down to a minor residual distortion THD 1 0 1 5 attack time 4 5 mS release time 40 50 mS 5 3 POWER ON DELAY Signal pres...

Page 5: ...epeat the test with f 50 kHz the power amplifier should not switch off 5 9 LED INDICATOR TEST Apply a 1 kHz sine signal and increase its level At approximately 30 dBu the SIGNAL LEDs will light and at about 1dBu the LIMIT LEDs light 6 Level CHANNEL A B 6 1 voltage amplification Unit Input U E Measure point U A Load resistor Test frequency CPS1 CH A B 1Vrms SPEAKER A B 42V 1kHz CPS1 CH A 1Vrms BRID...

Page 6: ...l to noise ratio referring to maximum output voltage at 4 Ω and A weighted interference voltage Power Amp output U F dBu U G dBu U A dBu GAIN dB IN A dBu S N R dB remarks LEVEL controls set to their clockwise margin CPS1 SPEAKER OUT A B 67 56 69 32 5 102 5 105 INPUT A B R Q 50Ω CPS2 SPEAKER OUT A B 67 56 69 33 5 102 5 105 INPUT A B R Q 50Ω LEVEL controls set to their counterclockwise margin CPS1 S...

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Page 10: ...ED CPS 1 US rear panel CPS1 351353 DEC 3HE DEM LAC L16 2400LAC top cover chassis 354647 NT RG Q44 S900 120 240V mains transformer 120 240V 348805 WI SO PTC K155 100GRAD safety component PTC 348341 FEDERLEISTE 3POL CE100 connector female 3 pole 841838 PCB AR CPS 1 US pcb assy 84183 CNAC1 343516 FL STECKER 4 8 0 5 connector 4 8mm faston CNAC2 343516 FL STECKER 4 8 0 5 connector 4 8mm faston CNGND 34...

Page 11: ... 35V C0026 343530 KO EL 47 000MF 50V cap electrolytic 47uF 50V C0027 343530 KO EL 47 000MF 50V cap electrolytic 47uF 50V C0028 301524 KO KER 47 0PF 500V 10 cap ceramic 47pF C0029 301524 KO KER 47 0PF 500V 10 cap ceramic 47pF C0030 329021 KO KER 0 10MF 100V 20 cap ceramic 100nF C0031 329021 KO KER 0 10MF 100V 20 cap ceramic 100nF C0032 341714 KO SO 0 10MF 275V 20 K safety cap 100nF 275V C0100 30155...

Page 12: ...994 KO KER 120 0PF 500V 2 cap ceramic 120pF C0318 351994 KO KER 120 0PF 500V 2 cap ceramic 120pF C0319 301458 KO EL 2 200MF 63V cap electrolytic 2 2uF 63V C0320 356605 KO FOL 0 100MF 250V 5 cap mylar 100nF C0323 301519 KO KER 10 0PF 500V 10 cap ceramic 10pF C0324 301519 KO KER 10 0PF 500V 10 cap ceramic 10pF C0325 301474 KO EL 22 000MF 16V BIP cap bip electr 22uF 16V C0326 329021 KO KER 0 10MF 100...

Page 13: ...4002 D0100 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0101 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0102 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0104 329511 DIODZ BZX 55C 2V4 0 50W diode zener 2V4 D0105 309450 DIODZ BZX 55C 15V 0 50W diode zener 15V D0106 309450 DIODZ BZX 55C 15V 0 50W diode zener 15V D0107 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D0108 301254 DIODE 1N 4148 AXIAL diode 1N 4148 D...

Page 14: ...H0100 343456 DICKS NETZW 8PIN 2 res network 8x4k7 H0101 343457 DICKS NETZW 8PIN 2 res network 8x10k H0300 343456 DICKS NETZW 8PIN 2 res network 8x4k7 H0301 343457 DICKS NETZW 8PIN 2 res network 8x10k I0001 332985 IC TL 074 CN IC TL 074 CN I0100 327197 IC NE 5532 P 2FACH OP IC NE 5532 N I0101 307421 IC CA 3080 E OTA IC CA 3080 E I0102 332985 IC TL 074 CN IC TL 074 CN I0103 338359 IC LM 308 AN IC LM...

Page 15: ...2N 3906 transistor 2N 3906 Q0116 338869 TRANS MJE 350 transistor MJE 350 Q0117 338868 TRANS MJE 340 transistor MJE 340 Q0118 348409 TRANS 2SC 4793 transistor 2SC 4793 Q0119 348421 TRANS 2N 3906 transistor 2N 3906 Q0120 335763 TRANS 2N 3904 transistor 2N 3904 Q0121 335763 TRANS 2N 3904 transistor 2N 3904 Q0122 348421 TRANS 2N 3906 transistor 2N 3906 Q0123 351981 TRANS MJL 3281 A transistor MJL 3281...

Page 16: ...51982 TRANS MJL 1302 A transistor MJL 1302 A Q0327 331657 TRANS MJ 15022 transistor MJ 15022 Q0328 331658 TRANS MJ 15023 transistor MJ 15023 Q0329 331657 TRANS MJ 15022 transistor MJ 15022 Q0330 331658 TRANS MJ 15023 transistor MJ 15023 Q0331 331657 TRANS MJ 15022 transistor MJ 15022 Q0332 331658 TRANS MJ 15023 transistor MJ 15023 Q0333 331657 TRANS MJ 15022 transistor MJ 15022 Q0334 331658 TRANS ...

Page 17: ...r 2x0 22 Ohm 5watt R0397 348456 WI DR 2X 0 22 OHM 5 00W 5 resistor 2x0 22 Ohm 5watt R0408 348593 WI SO NTC K 164 2 2K safety component NTC R0409 348593 WI SO NTC K 164 2 2K safety component NTC R0423 341713 WI DR 4 70 OHM 4 00W 5 resistor 4 70 Ohm 4watt R0425 341713 WI DR 4 70 OHM 4 00W 5 resistor 4 70 Ohm 4watt R0427 341713 WI DR 4 70 OHM 4 00W 5 resistor 4 70 Ohm 4watt S0001 344037 SCHALTER RAST...

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