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CP-35

Classé

PREAMPLIFIER

SERVICE MANUAL

v 1.0

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Summary of Contents for CP-35

Page 1: ...CP 35 Classé PREAMPLIFIER SERVICE MANUAL v 1 0 ...

Page 2: ...Index Mechanical Assembly 3 PC Boards 17 Testing Procedures 30 Diagrams 33 ...

Page 3: ...CP 35 MECHANICAL ASSEMBLY Classé 25 ...

Page 4: ...1 MS 2347 PHILIPS 2 L103XR03 3 L104XR02 CP 35 FACE PLATE ASSEMBLY Classé 1 M ODEL CP 35 SELECTOR REG1 REG2 REG3 TAPE M UTE BAL1 REG4 3 1 2 ...

Page 5: ...FACE PLATE ASSEMBLY 1 2 3 4 5 L156XR01 S 6 Classé 2 CP 35 4 5 6 1 2 3 TOP VIEW SIDE VIEW 1 SIDE VIEW 2 ...

Page 6: ...CHASSIS REAR VIEW 1 2 3 4 5 6 7 8 9 10 10 9 7 8 3 4 Classé 3 5 6 CP 35 1 2 ...

Page 7: ...CHASSIS 1 PLA CAPFR1 2 HDW 8 FLAT WASHER 3 BZO 8 32x3 4 BHCS 4 L101XR04 Classé 6 CP 35 1 2 3 4 TOP VIEW ...

Page 8: ...Classé 8 PARTIAL ASSY 1 AVR BO51XR02 2 AVR BO50XR03 3 AVR BO1CXR00 4 TRANSFORMER CP 35 TOP VIEW ...

Page 9: ...Classé 8 PHONO BOARD INSTALLATION 1 2 CP 35 SIDE VIEW 1 2 ...

Page 10: ...SHIPPING AREA FINAL ASSY 1 L102XR00 2 Classé 9 M ODEL CP 3 5 SELE CTO R REG 1 REG2 REG3 TA PE M UTE BAL1 REG 4 CP 35 2 1 ...

Page 11: ...CP 35 PC BOARDS Classé 25 ...

Page 12: ...B101XR03 MAINBOARD Classé 10 CP 35 ...

Page 13: ...B103XR02 FRONT PCB Classé 11 CP 35 ...

Page 14: ...B0F9XR02 PHONO Classé 11 CP 35 ...

Page 15: ...CP 35 TESTING PROCEDURES Classé 25 ...

Page 16: ... Power supply voltages Apply 30 VAC check polarities Apply 60 VAC check voltages Apply 120 VAC Q1 7805 CD3 12V CD4 5V Q2 7818 C9 26V C11 18V Q3 7918 C10 26V C12 18V Q4 7815 C20 18V C22 15V Q5 7915 C20 18V C22 15V Q9 7905 C42 12V C44 15V Q8 7805 C43 5V C41 12V Q7 7912 C28 18V C30 12V Q6 7812 C27 18V C29 12V Tip 107 Q102 Q202 Q302 Q402 CP 35 ...

Page 17: ...nels Wait 7 to 8 minutes after each adjustment Also adjust offset to 0mV 5 Measure rail and pre driver voltage 6 Measure A C voltage for bridge 7 Measure supply voltage for relays 15V and 15V for both channels 12V and 12V 8 Measure reference voltage 8 1V on both channels 9 Measure reference voltage for protection 78V 10 After setting the bias connect load and input signal Check output signal Check...

Page 18: ...CP 35 DIAGRAMS Classé 25 ...

Page 19: ...MAINBOARD B101XR02 1 Classé 16 CP 35 ...

Page 20: ...Classé 17 CP 35 MAINBOARD B101XR02 2 ...

Page 21: ...Classé 18 CP 35 MAINBOARD PREAMP LEFT B101XR02 3 ...

Page 22: ...Classé 19 CP 35 MAINBOARD PREAMP RIGHT B101XR02 4 ...

Page 23: ...Classé 20 CP 35 PANEL B103XR01 ...

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Page 31: ...CP 35 Block Diagram Single ended Input Selector Balanced Input Balanced Selector Input Balanced To Single end Conversion Input Selector Volume Control Pre out Gain Stage ...

Page 32: ...rds missing components and component orientation 2 Power supply voltages a Apply 30 VAC check polarities b Apply 60 VAC check voltages c Apply 120 VAC 1 Q1 7805 CD3 12V CD4 5V 2 Q2 7818 C9 26V C11 18V 3 Q3 7918 C10 26V C12 18V 4 Q4 7815 C20 18V C22 15V 5 Q5 7915 C20 18V C22 15V 6 Q9 7905 C42 12V C44 15V ...

Page 33: ... Q202 Q302 Q402 a C110 C210 C310 C40 18V 11 Tip 102 Q101 Q102 Q201 Q301 Q401 a C108 C208 C308 C408 18V 12 1C2 OPA2134 C35 12V C36 12V 13 1C1 OPA2134 C33 12V C34 12V 14 1C3 OPA2134 C37 12V C38 12V 15 1C101 OPA2134 C104 15V C106 15V 16 1C301 OPA2134 C304 15V C306 15V 17 Q103 Q203 Q303 Q403 TL431 ...

Page 34: ...03 2 5V 18 Bias voltages 150MV to 200 MV Measure across resistors a R108 R107 R207 R208 R308 R307 R407 R408 19 Offset 10MV or maximum measure W Respect to GND T P lower pins on R109 R209 R309 R409 20 Offset on tape out maximum 10MV 21 Check signals ...

Page 35: ...m of the socket 2 FUNCTIONS a Install micro chip CAP100 XC on U1 install all red LED b Plug on the unit c Countdown from 20 0 to 0 00 relay clicks d REG1 LED lights e Press selector switch up and down one at a time All LEDs must light one at a time Relay clicks every time you press selector switch f Press tape switch relay clicks LED lights g Press mute no click h Check volume manually i Check rem...

Page 36: ... from the AC line and from the system 2 Remove the top cover 3 Locate and remove resistors R202 and R402 4 Locate and replace resistors R103 and R303 from the old value 86 6 Kohms to the new value of 21 5 Kohms 5 Replace the top cover and test unit ...

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