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Pioneer PRS-X720 Service Manual
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Pioneer PRS-X720 Service Manual

Pioneer PRS-X720 Service Manual

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Service
Manual
BRIDGEABLE POWER AMPLIFIER
PRS-X720
PRS-X320
PRS-X220
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST .......................2
3. SCHEMATIC DIAGRAM ...........................................10
4. PCB CONNECTION DIAGRAM ................................28
5. ELECTRICAL PARTS LIST ........................................40
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE INC.
PIONEER ELECTRONIC [EUROPE] N.V.
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER ELECTRONIC CORPORATION 1999
PRS-X720/X1R/UC
X1R/UC
X1R/UC
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
6. ADJUSTMENT..........................................................48
7. GENERAL INFORMATION .......................................49
7.1 IC .........................................................................49
7.2 DISASSEMBLY ...................................................50
8. OPERATIONS AND SPECIFICATIONS.....................51
K-ZZA. FEB. 1999 Printed in Japan
ORDER NO.
CRT2361
X1R/UC

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  • Page 1: Table Of Contents

    PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER ELECTRONIC CORPORATION 1999 K-ZZA. FEB. 1999 Printed in Japan...

  • Page 2: Safety Information

    PRS-X720,X320,X220 1. SAFETY INFORMATION CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.
  • Page 3 - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. - PACKING SECTION PARTS LIST Part No. Mark No. Description PRS-X720/X1R/UC PRS-X320/X1R/UC PRS-X220/X1R/UC 1 Screw Assy HEA0047 HEA0047 HEA0047...
  • Page 4 PRS-X720,X320,X220 2.2 EXTERIOR(PRS-X720/X1R/UC)
  • Page 5 PRS-X720,X320,X220 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw(M3×12) CBA1323 26 Heat Sink HNR0113 2 ••••• 27 Heat Sink HNR0114 3 Badge HAM0013 28 Bar HNR0124 4 Screw(M3×5) HBA0006 29 Screw PPZ30P100SAD 5 Screw(M3×8)
  • Page 6 PRS-X720,X320,X220 2.3 EXTERIOR(PRS-X320/X1R/UC)
  • Page 7 PRS-X720,X320,X220 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw(M3×12) CBA1323 26 Buss Bar HNC0064 2 ••••• 27 Buss Bar HNC0065 3 Badge HAM0013 28 Heat Sink HNR0115 4 Screw(M3×5) HBA0006 29 Heat Sink HNR0116 5 Screw(M3×8)
  • Page 8 PRS-X720,X320,X220 2.4 EXTERIOR(PRS-X220/X1R/UC)
  • Page 9 PRS-X720,X320,X220 - EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw(M3×12) CBA1323 26 Heat Sink HNR0117 2 ••••• 27 Heat Sink HNR0118 3 Badge HAM0013 28 Bar HNR0124 4 Screw(M3×5) HBA0006 29 Screw PPZ30P100SAD 5 Screw(M3×8)

  • Page 10: Schematic Diagram

    PRS-X720,X320,X220 3. SCHEMATIC DIAGRAM 3.1 AMP UNIT(GUIDE PAGE)(PRS-X720/X1R/UC) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”.
  • Page 11 PRS-X720,X320,X220 Large size SCH diagram Guide page Detailed page 94-4980 94-4980 94-4980 94-4981 94-4981 94-4981 94-4980 94-4980 94-4980 94-4981 94-4981 94-4981...
  • Page 12 PRS-X720,X320,X220...
  • Page 13 PRS-X720,X320,X220...
  • Page 14 PRS-X720,X320,X220...
  • Page 15 PRS-X720,X320,X220...
  • Page 16 PRS-X720,X320,X220 3.2 AMP UNIT(GUIDE PAGE)(PRS-X320/X1R/UC)
  • Page 17 PRS-X720,X320,X220 94-4980 94-4980 94-4981 94-4981 94-4980 94-4980 94-4981 94-4981...
  • Page 18 PRS-X720,X320,X220...
  • Page 19 PRS-X720,X320,X220...
  • Page 20 PRS-X720,X320,X220...
  • Page 21 PRS-X720,X320,X220...
  • Page 22 PRS-X720,X320,X220 3.3 AMP UNIT(GUIDE PAGE)(PRS-X220/X1R/UC)
  • Page 23 PRS-X720,X320,X220 94-4980 94-4981 94-4980 94-4981...
  • Page 24 PRS-X720,X320,X220...
  • Page 25 PRS-X720,X320,X220...
  • Page 26 PRS-X720,X320,X220...
  • Page 27 PRS-X720,X320,X220...

  • Page 28: Pcb Connection Diagram

    NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for 4. PCB CONNECTION DIAGRAM several destination. 4.1 AMP UNIT(PRS-X720/X1R/UC) For further information for respective destinations, be sure to check with the schematic dia- gram.
  • Page 29 PRS-X720,X320,X220 2. Viewpoint of PCB diagrams Capacitor Connector AMP UNIT SIDE A SIDE A SIDE B Chip Part P.C.Board B REMOTE...
  • Page 30 PRS-X720,X320,X220 AMP UNIT...
  • Page 31 PRS-X720,X320,X220 SIDE B...
  • Page 32 PRS-X720,X320,X220 4.2 AMP UNIT(PRS-X320/X1R/UC) AMP UNIT...
  • Page 33 PRS-X720,X320,X220 SIDE A B REMOTE...
  • Page 34 PRS-X720,X320,X220 AMP UNIT...
  • Page 35 PRS-X720,X320,X220 SIDE B...
  • Page 36 PRS-X720,X320,X220 4.3 AMP UNIT(PRS-X220/X1R/UC) AMP UNIT...
  • Page 37 PRS-X720,X320,X220 SIDE A B REMOTE...
  • Page 38 PRS-X720,X320,X220 AMP UNIT...
  • Page 39 PRS-X720,X320,X220 SIDE B...

  • Page 40: Electrical Parts List

    CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : HWH0091(PRS-X720/X1R/UC) Transistor 2SB1277 Unit Name : Amp Unit STP50NE08 STP50NE08 MISCELLANEOUS Transistor 2SD2395 Transistor 2SB1566...
  • Page 41 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RESISTORS RD1/4PU101J RD1/4PU243J RS1/10S103J RD1/4PU243J RS1/10S103J RD1/4PU101J RS1/10S103J RD1/4PU101J RS1/10S103J RS1/10S103J RD1/4PU101J RD1/4PU101J RS1/10S103J RS1/10S101J RS1/10S472J RS1/10S101J RS1/10S472J RS1/10S101J...
  • Page 42 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU563J CFTNA104J50 RD1/4PU564J CFTLA824J50 RD1/4PU564J CFTLA824J50 RD1/4PU473J CFTLA824J50 RD1/4PU473J CFTLA824J50 RS1/10S471J CFTLA824J50 RS1/10S471J CFTLA824J50 RS1/10S223J CFTLA824J50 RS1/10S223J CFTLA824J50 (RN1/10SE1002D)
  • Page 43 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CEAS2R2M50 Transistor 2SC1845 CEAS101M16 Transistor 2SA1048 CQMA472J50 Transistor 2SC2458 CQMA472J50 Transistor 2SC2458 4700µF/16V CCH1310 Transistor 2SA1048 4700µF/16V CCH1310 Transistor 2SC2458 4700µF/16V...
  • Page 44 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S103J RS1/10S101J RS1/10S103J RS1/10S101J RS1/10S123J RS1/10S101J RS1/10S123J SPR30R1J RS1/10S103J SPR30R1J RS1/10S103J SPR30R1J RS1/10S123J SPR30R1J RS1/10S123J SPR30R1J RS1/10S103J SPR30R1J RS1/10S103J...
  • Page 45 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S223J CEAS1R0M50 RS1/10S472J CEAS100M16 RS1/10S472J CEAS100M16 RS1/10S472J CKPUYB221K50 RS1/10S222J CKPUYB221K50 RS1/2PMF220J CEAS221M10 RS1/10S153J CEAS221M10 RS1/2PMF220J CFTLA103J50 RS1/10S153J CFTLA103J50 RS1/10S102J...
  • Page 46 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : HWH0099(PRS-X220/X1R/UC) Diode 1SS133 Unit Name : Amp Unit Diode RM4Z Diode FML22S MISCELLANEOUS Diode HZS16L(1) Diode...
  • Page 47 PRS-X720,X320,X220 =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RD1/4PU683J (RN1/10SE1002D) GGC1320 RD1/4PU512J (RN1/10SE1002D) GGC1320 RD1/4PU512J (RN1/10SE1002D) GGC1320 RD1/4PU512J (RN1/10SE1002D) GGC1320 RD1/4PU512J (RN1/10SE1002D) GGC1320 RD1/4PU271J (RN1/10SE1002D) GGC1320 RD1/4PU271J...

  • Page 48: Adjustment

    Conditions: Terminate inputs with 1kΩ resistors. No load connected to output. 14.4V DC power ON for 30 seconds then adjust. • PRS-X720/X1R/UC Turn power on. Measure the voltage across resistor R586. After 30 seconds from turn on of amplifier, adjust VR552 so voltage is 4.5mV ±...

  • Page 49: General Information

    PRS-X720,X320,X220 7. GENERAL INFORMATION 7.1 IC PA2027A Transient voltage detector Stby Bandgap DET1 Circuit motion:on DET2 Cont_V 50µA DET_R Filter 4.7kΩ Bandgap:on Switch:on Vs_out 0.13V Mute_out 5.6V Oneshot (1µsec)

  • Page 50: Disassembly

    Case Case Remove the two screws. Remove the two brackets. Remove the eight screws. Remove the four screws. (PRS-X720/X1R/UC)Remove the six screws. Bracket (PRS-X320/X1R/UC)Remove the four screws. (PRS-X220/X1R/UC)Remove the two screws. Remove the two Cases. Fig.1 Removing the Amp Unit(not shown) (PRS-X720/X1R/UC)Remove the eleven screws.

  • Page 51: Operations And Specifications

    PRS-X720,X320,X220 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS...
  • Page 52 PRS-X720,X320,X220...
  • Page 53 PRS-X720,X320,X220 8.2 SPECIFICATIONS...

This manual is also suitable for:

Prs-x320Prs-x220

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