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PIONEER CORPORATION

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, 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

PIONEER CORPORATION 2002

K-ZZY. NOV. 2002 Printed in Japan

BRIDGEABLE POWER AMPLIFIER

GM-X972

XR/UC,XR/EW,XR/ES

For details, refer to "Important symbols for good services". 

ORDER NO.

CRT3008

Service
Manual

BRIDGEABLE

2-CH POWER AMPLIFIER

BRIDGED

30A

30A

GM-X972/XR/UC

Summary of Contents for gm-x972

Page 1: ...tberglaan 1 9120 Melsele Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 253 Alexandra Road 04 01 Singapore 159936 C PIONEER CORPORATION 2002 K ZZY NOV 2002 Printed in Japan BRIDGEABLE POWER AMPLIFIER GM X972 XR UC XR EW XR ES For details refer to Important symbols for good services ORDER NO CRT3008 Service Manual BRIDGEABLE 2 CH POWER AMPLIFIER BRIDGED 30A 30A GM X972 XR UC ...

Page 2: ...and shipping screws To protect the product from damages or failures that may be caused during transit the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual if necessary 1 Product safety You should conform to the regulations governing the product safety radio and noise and other regulations and should keep the safety during ser...

Page 3: ...tortion 0 008 10 W 1 kHz Separation 65 dB 1 kHz Low pass filter Cut off frequency 80 Hz Cut off slope 12 dB oct Maximum input level impedance RCA 6 5 V 22 kΩ 0 2 6 5 V Speaker 26 V 40 kΩ 0 8 26 V Note Specifications and the design are subject to possible modification without notice due to improvements Average current drawn The average current drawn is nearly the maximum current drawn by this unit ...

Page 4: ...4 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING ...

Page 5: ... Cord Assy HDE0036 PACKING SECTION PARTS LIST Mark No Description Part No NOTE 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 For the applying amount of lubricants or glue follow the instructions in this manual In the case of no amount instructions apply as you think it appropriate Owner ...

Page 6: ...6 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC 2 2 EXTERIOR ...

Page 7: ...F1059 14 15 Fuse 30A HEK0030 16 Pin Jack CN801 HKB0020 17 Terminal CN601 HKE0048 18 Terminal CN851 HKE0049 19 Terminal CN852 HKE0049 20 Connector CN803 HKM1077 21 Holder HNC0082 22 Clip HNC0145 23 24 25 Heat Sink HNR0229 26 Screw PPZ30P100FZK 27 Light Pipe Unit HXA0391 28 Screw ISS30P055FUC 29 Screw PPZ30P100FZK 30 Screw HBA0029 31 FET Q612 613 614 615 616 617 STP80NF55 06FP 32 Diode D611 FML22R 3...

Page 8: ... HCS0003 10kΩ A HCS0003 10kΩ A 75µH 75µH EW ES ONLY GAIN 1 GAIN 12dB LPF SELECT LPF SELECT BFC A AMP UNIT A a A a A b A a A b A b A a Large size SCH diagram Guide page Detailed page 3 SCHEMATIC DIAGRAM 3 1 OVERALL CONNECTION DIAGRAM GUIDE PAGE A ...

Page 9: ...the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors EW ES ONLY UC EW ES R608 1R8K 5R1K R609 1R8K 5R1K AMPLIFIER GAIN 11 5 4...

Page 10: ...10 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC 1 3 2 HCS0003 10kΩ A HCS0003 10kΩ A GAIN 1 GAIN 12dB LPF SELECT LPF SELECT A AMP UNIT A a A b A a ...

Page 11: ...11 5 6 7 8 F E D C B A 5 6 7 8 GM X972 XR UC 3 4 75µH 75µH EW ES ONLY BFC A a A b A a ...

Page 12: ...12 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC 1 3 2 AMPLIFIER GAIN 11 5 41 8dB A a A b A b ...

Page 13: ...es the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation Symbol indicates a resistor No differentiation is made between chip resistors and discrete resistors NOTE Symbol indicates a capacitor No differentiation is made between chip capacitors and discrete capacitors EW ES ONLY UC EW ES R608 1R8K 5R1K R609 1R8K 5R1K 34µH RM4Z LFJ4 UC ...

Page 14: ...rt A A AMP UNIT SIDE B SIDE A NOTE FOR PCB DIAGRAMS 1 The parts mounted on this PCB include all necessary parts for several destination For further information for respective destinations be sure to check with the schematic dia gram 2 Viewpoint of PCB diagrams L L R R 1 2 3 4 L L R R SPEAKER INPUT INPUT GAIN LPF SELECT A ...

Page 15: ...15 5 6 7 8 F E D C B A 5 6 7 8 GM X972 XR UC A SIDE A FU603 FU602 1 2 3 2 1 2 1 BFC SPEAKER OUTPUT POWER SUPPLY A ...

Page 16: ...16 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC A A AMP UNIT 1 1 1 A ...

Page 17: ...17 5 6 7 8 F E D C B A 5 6 7 8 GM X972 XR UC A SIDE B L 1 A ...

Page 18: ...r KSC1623 Q 907 Transistor KSC1623 D 201 Diode 1SS133 D 601 Diode RM4Z LFJ4 D 603 Diode HZS7L B2 D 604 Diode 1SS133 D 611 Diode FML22R D 612 Diode FML22S D 613 Diode HZS16L 1 D 614 Diode HZS16L 1 D 615 Diode ERA15 02VH D 616 Diode ERA15 02VH D 909 Diode 1SS133 D 911 LED L934BR235SRCF L 501 Coil HTH0011 L 502 Coil HTH0011 L 601 Choke Coil 34µH EW ES HTH0006 L 602 Choke Coil 75µH HTH0010 L 603 Choke...

Page 19: ...10SE1002D R 812 RN1 10SE1002D R 813 RN1 10SE1002D R 814 RN1 10SE1002D R 831 RS1 16S683J R 832 RS1 16S683J R 901 0 22Ω HCN0001 R 902 0 22Ω HCN0001 R 903 0 22Ω HCN0001 R 904 0 22Ω HCN0001 R 905 RD1 4PU563J R 906 RD1 4PU563J R 907 RD1 4PU203J R 908 RD1 4PU203J R 917 RD1 4PU273J R 918 RD1 4PU472J R 919 RD1 4PU103J R 920 RD1 4PU392J R 924 RD1 4PU473J R 930 RD1 4PU331J R 931 RD1 4PU331J CAPACITORS C 101...

Page 20: ...CFTNA473J50 C 644 CQMA102J50 C 651 2200µF 50V HCH0007 C 652 2200µF 50V HCH0007 C 653 2200µF 50V HCH0007 C 654 2200µF 50V HCH0007 C 670 CQMA103J50 C 801 CCSRCH471J50 C 802 CCSRCH471J50 C 803 CEAT100M16 C 804 CEAT100M16 C 805 CQMA472J50 C 806 CQMA472J50 C 807 CCSRCH470J50 C 808 CCSRCH470J50 C 809 CCSRCH470J50 C 810 CCSRCH470J50 C 811 CFTNA104J50 C 812 CFTNA104J50 C 831 CEAT100M16 C 832 CEAT100M16 C ...

Page 21: ...he eight screws 1 Remove the eight screws and then remove the Case Removing the Case not shown 3 4 4 4 2 1 Amp Unit 2 Remove the screw and then remove the two Panels 3 Remove the eight screws and then remove the two Heat Sinks 4 Remove the five screws and then remove the Amp Unit Panel 1 1 1 1 1 1 1 Panel Heat Sink Heat Sink 3 3 3 3 3 3 3 4 4 ...

Page 22: ...7 1 2 CONNECTOR FUNCTION DESCRIPTION BRIDGEABLE 2 CH POWER AMPLIFIER BRIDGED GM X972 XR UC 6 5V 0 2V 30A 30A 22 1 2 3 4 1 2 3 4 F E D C B A GM X972 XR UC ...

Page 23: ... 7 9 11 13 15 2 5 6 8 10 12 14 STAND BY GND INVERTING INPUT NON INVERTING INPUT SIGNAL GND CLIP AND SHORT CIRCUIT DETECTOR BOOTSTRAP Vs SIGNAL Vs SIGNAL STAND BY MUTE BUFFER DRIVER BOOTSTRAP LOADER Vs POWER OUT Vs POWER IC s marked by are MOS type Be careful in handling them because they are very liable to be damaged by electrostatic induction ...

Page 24: ...to an MW LW broadcast with your car stereo change the BFC switch using a small standard tip screwdriver Gain Control If the sound level is too low even when the volume of the car stereo used along with this power amplifier is turned up turn gain control on the front of the power amplifier clockwise If the sound distorts when the volume is turned up turn the gain control counter clockwise When usin...

Page 25: ... Connecting wires with RCA pin plugs sold separately RCA input jack Speaker output terminal See the Connecting the Speaker wires section for speaker connection instructions System remote control wire sold separately Connect the male terminal of this wire to the system remote control terminal of the car stereo SYSTEM REMOTE CONTROL The female terminal can be connected to the auto antenna relay cont...

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