Pioneer SC-LX83 Service Manual
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Pioneer SC-LX83 Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
SC-LX83
SC-LX73
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
SC-LX83
AXJ5
SC-LX73
AXJ5
This service manual should be used together with the following manual(s).
Model No.
SC-37/UXJCB
SC-37/UXJCB
For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION
Porew Requirement
AC 220 V to 230 V/ 240 V
AC 220 V to 230 V/ 240 V
Order No.
RRV4137
RRV4138
PCB RETRIEVAL DIAGRAM
1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
2010
SC-LX83
The voltage can be converted by the
following method.
With the voltage selector
With the voltage selector
Remarks
K-ZZZ SEPT.
ORDER NO.
RRV4144
2010 Printed in Japan

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Summary of Contents for Pioneer SC-LX83

  • Page 1 PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936...

  • Page 2: Exploded Views And Parts List

    Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 562 x 10 5621 RN1/4PC CONTRAST TABLE SC-37/UXJCB, SC-LX83/AXJ5 and SC-LX73/AXJ5 are constructed the same except for the following: Mark Symbol and Description SC-37/UXJCB SC-LX83/AXJ5 SC-LX73/AXJ5...
  • Page 3 Mark Symbol and Description SC-37/UXJCB SC-LX83/AXJ5 SC-LX73/AXJ5 Remarks CCC S&E Label Not used DRW2310 DRW2310 EXTERIOR SECTION > P105-8 Power Transformer ATS7430 ATS7431 ATS7431 > P105-9 Fuse (FU13, FU14 : 1A) REK1142 Not used Not used > P105-9 Fuse (FU13, FU14 : T 800 mA)
  • Page 4 RS1/16SS0R0J R1907, R1909, R1910 Not used RS1/16SS0R0J R724, R725, R738 Not used RS1/16SS101J R1823, R1828 RS1/10SR101J Not used R1814 RS1/10SR104J Not used R1818 RS1/16SS0R0J Not used R739, R1806, R1807, R1819 RS1/16SS101J Not used R1820, R1824-R1827, R1829 RS1/16SS101J Not used SC-LX83...
  • Page 5 CKSSYB105K6R3 DCH1246 C9035, C9042, C9859, C9870 CKSSYB105K6R3 DCH1246 C406, C611, C9362 Not used CCSSCH100D50 C759, C760 Not used CCSSCH101J50 The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual. SC-LX83...
  • Page 6 R1909, R1910, R9396-R9400 Not used RS1/16SS0R0J R9407, R9439, R9440, R9667 Not used RS1/16SS0R0J R9673, R9675-R9677, R9821 Not used RS1/16SS0R0J R9624, R9632 Not used RS1/16SS100J R724, R725, R738 Not used RS1/16SS101J R309 Not used RS1/16SS102J R9655, R9668, R9669 Not used RS1/16SS103J SC-LX83...
  • Page 7 R1868, R1892 RS1/16SS151J Not used R9654 RS1/16SS152J Not used R9626-R9628, R9634, R9635 RS1/16SS153J Not used R9653 RS1/16SS2001F Not used R9225, R9245, R9522, R9524 RS1/16SS220J Not used R9526-R9528, R9553, R9598 RS1/16SS220J Not used R9613 RS1/16SS220J Not used R9427 RS1/16SS220J RS1/16SS0R0J SC-LX83...
  • Page 8 CCSSCH471J50 Not used C9512, C9516, C9518, C9521 CCSSCH471J50 Not used C9524, C9529, C9531, C9534 CCSSCH471J50 Not used C9539, C9540, C9548-C9550 CCSSCH471J50 Not used C9560, C9562, C9573, C9575 CCSSCH471J50 Not used C9587 CCSSCH471J50 Not used C1810, C1811 CCSSCH8R0D50 Not used SC-LX83...
  • Page 9 C9035, C9042, C9859, C9870 CKSSYB105K6R3 DCH1246 C9811 CKSSYB222K50 CCSSCH102J50 C9564 CSZS330M6R3 Not used C201, C406, C611, C9362 Not used CCSSCH100D50 C759, C760 Not used CCSSCH101J50 C203, C9577, C9579, C9583 Not used CCSSCH102J50 C9585, C9591, C9593, C9598 Not used CCSSCH102J50 SC-LX83...
  • Page 10 F COMPONENT ASSY AWX9654 and AWX9656 are constructed the same except for the following: Mark Symbol and Description AWX9654 AWX9656 Remarks JA8305 3p Pin Jack Ni AKB7227 Not used R8317, R8319, R8321 RS1/10SR3R9J Not used R8316, R8318, R8320 RS1/10SR68R0D Not used SC-LX83...
  • Page 11 R4304, R4305, R4404, R4405 RN1/16SE1001D RS1/10SR4701D RS1/10SR4701D R4504, R4505, R4604, R4605 RN1/16SE1001D RS1/10SR4701D RS1/10SR4701D R4704, R4705 RN1/16SE1001D RS1/10SR4701D RS1/10SR4701D R4102, R4103, R4202, R4203 RN1/16SE9100D RS1/10SR4301D RS1/10SR4301D R4302, R4303, R4402, R4403 RN1/16SE9100D RS1/10SR4301D RS1/10SR4301D R4502, R4503, R4602, R4603 RN1/16SE9100D RS1/10SR4301D RS1/10SR4301D SC-LX83...
  • Page 12 CCSRCH101J50 CCSRCH101J50 C4506, C4507, C4606, C4607 ACG7072 CCSRCH101J50 CCSRCH101J50 C4706, C4707 ACG7072 CCSRCH101J50 CCSRCH101J50 C4100, C4200, C4300, C4400 CFTNA104J2A ACE7087 ACE7087 C4500, C4600, C4700 CFTNA104J2A ACE7087 ACE7087 C4101, C4201, C4301, C4401 CFTNA274J2A ACE7088 ACE7088 C4501, C4601, C4701 CFTNA274J2A ACE7088 ACE7088 SC-LX83...
  • Page 13 RS1/10SR0R0J RS1/10SR1001F RS1/4SA105J ACN7180 RS1/8SQ475J RS1/8SQ365J RS1/10SR392J RS1/10SR123J Not used CCSRCH100D50 C74, C75 CCSRCH101J50 CCSRCH220J50 > ACE7013 Not used The mounting positions of the additional parts are described in the circuit diagram and PCB diagram of the parent manual. SC-LX83...

  • Page 14: Schematic Diagram

    1/16w or NETWORKS-1/32w unless otherwise noted. GNDD GNDBT (J)5% unless otherwise noted. VSX-LX53 TORS VSX-2020-K or u-uF unless otherwise noted. apacity(F)/Voltage(V) unless otherwise noted. C2059 220u/10 B, QYB:CKSQYB, SYB:CKSSYB, CH:CCSRCH, SCH:CCSSCH ZL:CEHAZL, QHX:CFHXSQ Mount 1/2 F 1/2 F SC-LX83...

  • Page 15: Digital Main Assy

    R1935 ZFADA TC74LCX157FK ZMCLK ZBCK USBSW V+3R3_D3 SELECTOR L1812 C1836 0.1u/10 QTL1013-A A XM or DIR C1837 470p/50 B USB IC1810 SELECT R1875 R1876 R1947 R1877 R1893 R1878 R1894 R1879 R1948 R1880 R1895 R1896 TC74VHC157FK 6/10 F 6/10 F SC-LX83...

  • Page 16: Icepower Amp Assy

    2.5 ICEPOWER AMP ASSY (1/5) ICEPOWER AMP ASSY (1/5) (SC-LX83 : AWH7031) (SC-LX73 : AWH7033) TO B REG ASSY V+64V CN4900 +B(+64V) -B(-64V) CKS-557-- V-64V GNDCH 1/5 F 1/5 F 2.6 ICEPOWER AMP ASSY (2/5) ICEPOWER AMP ASSY (2/5) IC4201...
  • Page 17 2.7 ICEPOWER AMP ASSY (3/5) ICEPOWER AMP ASSY (3/5) IC4401 ICC3-AVR DRIVER (SC-LX83 : AWH7031) Isense1_H Vboot Isense2_H HighDrive (SC-LX73 : AWH7033) HighReturn Isense1_L 5 PWM+ Isense2_L 6 PWM- Vdrive V+5V 7 SS_EN LowDrive R4415 8 Blanking R4447 ACN7165-A 3216...
  • Page 18 2.9 ICEPOWER AMP ASSY (5/5) ICEPOWER AMP ASSY (5/5) (SC-LX83 : AWH7031) (SC-LX73 : AWH7033) TO ICE INTERFACE ASSY R4700 V+12V CN4700 100 0.5% XKP3062-A R4701 GNDC R4791 100 0.5% V+12C 2125 2.2M V-12C 2125 R4792 8.2k V-12V IC4701 ICC3-AVR...

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