Pioneer GM-X372, Service Manual

Page 1: ... Keetberglaan 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 X372 XH UC XH EW XH ES For details refer to Important symbols for good services ORDER NO CRT3006 Service Manual GM X372 XH UC BRIDGEABLE 2 CH POWER AMPLIFIER BRIDGED ...

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: ... 0 kg 4 4 lbs Leads for wiring not included Maximum power output 100 W 2 240 W 1 Continuous power output 50 W 2 at 14 4 V 4 Ω 20 20 000 Hz 0 15 THD 120 W 1 at 14 4 V 4 Ω 20 20 000 Hz 0 8 THD 60 W 2 at 14 4 V 2 Ω 20 20 000 Hz 0 8 THD Load impedance 4 Ω 2 8 Ω allowable Bridge connection 4 8 Ω allowable Frequency response 10 50 000 Hz 0 dB 1 dB Signal to noise ratio 100 dB IHF A network Distortion 0 ...

Page 4: ...4 1 2 3 4 1 2 3 4 F E D C B A GM X372 XH UC 2 EXPLODED VIEWS AND PARTS LIST 2 1 PACKING ...

Page 5: ...nty Card HRY1157 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 s ...

Page 6: ...6 1 2 3 4 1 2 3 4 F E D C B A GM X372 XH UC 2 2 EXTERIOR ...

Page 7: ...025 13 Pin Jack CN801 HKB0020 14 Terminal CN601 HKE0048 15 Terminal CN851 HKE0049 16 Terminal CN852 HKE0049 17 Connector CN803 HKM1077 18 Clip HNC0145 19 20 Heat Sink HNR0237 21 Screw PPZ30P100FZK 22 Light Pipe Unit HXA0391 23 Screw ISS30P055FUC 24 Screw PPZ30P100FZK 25 Screw HBA0029 26 FET Q612 613 614 615 STP55NF06FP 27 Diode D611 FML22R 28 Diode D612 FML22S 29 Holder HNC0082 30 Screw BBZ30P080F...

Page 8: ...003 HCS0003 75µH EW ES ONLY EW ES ONLY GAIN 1 GAIN 12dB 75µH LPF SELECT LPF SELECT 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 UC ONLY UC ONLY 3 SCHEMATIC DIAGRAM 3 1 OVERALL CONNECTION DIAGRAM GUIDE PAGE A ...

Page 9: ...mportance 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 EW ES ONLY UC EW ES R608 3R3K 5R1K R609 3R3K 5R1K AMPLIFIER GAIN ...

Page 10: ...10 1 2 3 4 1 2 3 4 F E D C B A GM X372 XH UC 1 2 HCS0003 HCS0003 10kΩ A 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 X372 XH UC 3 4 75µH EW ES ONLY EW ES ONLY 75µH UC ONLY UC ONLY A a A b A a ...

Page 12: ... component parts indicates 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 AMPLIFIER GAIN 6 8 37 0dB A a A b A b ...

Page 13: ...k found on some component parts indicates the importance of the safety factor of the part Therefore when replacing be sure to use parts of identical designation EW ES ONLY EW ES ONLY UC EW ES R608 3R3K 5R1K R609 3R3K 5R1K 50µH FU602 BFC RM4Z LFJ4 UC ONLY A a A b A b ...

Page 14: ...d Chip Part 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 FU602 1 1 2 3 4 R R L L SPEAKER INPUT PO A ...

Page 15: ...15 5 6 7 8 F E D C B A 5 6 7 8 GM X372 XH UC A SIDE A 2 3 1 2 1 2 INPUT GAIN LPF SELECT BFC SPEAKER OUTPUT POWER SUPPLY A ...

Page 16: ...16 1 2 3 4 1 2 3 4 F E D C B A GM X372 XH UC A A AMP UNIT 1 1 A ...

Page 17: ...17 5 6 7 8 F E D C B A 5 6 7 8 GM X372 XH UC A SIDE B 1 1 A ...

Page 18: ...L 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 601 Choke Coil 50µH EW ES HTH0005 L 602 Choke Coil 75µH EW ES HTH0010 L 603 Choke Coil 75µH EW ES HTH0010 L 801 Ferri Inductor CTF1007 L 802 Ferri Inductor CTF1007 T 601 Transformer HTT0015 TH 603 Thermistor HCX0001 S 101 Switch LPF SELECT HSH0004 S 601 Switch BFC EW ES HSH 156 VR 30...

Page 19: ...0 C 502 CEAT220M50 C 503 CEAT101M50 C 504 CEAT101M50 C 505 CEAT220M50 C 506 CEAT220M50 C 507 CFTNA104J50 C 508 CFTNA104J50 C 509 CFTNA104J50 C 510 CFTNA104J50 C 537 CFTNA333J50 C 538 CFTNA333J50 C 539 CQMA102J50 C 540 CQMA102J50 C 601 CFTNA103J50 C 602 CFTNA224J50 C 603 CFTNA103J50 C 606 CFTNA103J50 C 607 CEAT100M16 C 608 CEAT100M16 C 609 CEAT470M16 C 611 CEAT220M50 C 612 470µF 16V HCH0013 C 613 C...

Page 20: ...move the eight screws 1 Remove the eight screws and then remove the Case Removing the Case not shown 3 4 4 1 Amp Unit 2 Remove the screw and then remove the two Panels 3 Remove the four screws and then remove the two Heat Sinks 4 Remove the four screws and then remove the Amp Unit Panel 1 1 1 1 1 1 1 Panel Heat Sink Heat Sink 3 3 3 4 4 2 ...

Page 21: ...21 5 6 7 8 F E D C B A 5 6 7 8 GM X372 XH UC 7 1 2 CONNECTOR FUNCTION DESCRIPTION BRIDGEABLE 2 CH POWER AMPLIFIER BRIDGED GM X372 XH UC 6 5V 0 2V 25 ...

Page 22: ... because they are very liable to be damaged by electrostatic induction MUTE STBY THERMAL SHUTDOWN S C PROTECTION 2 3 4 10 9 1 8 15 6 14 13 7 1 3 4 7 9 11 13 15 2 5 6 8 10 12 14 STAND BY GND INVERTING INPUT NON INVERTING INPUT SUR NC BOOTSTRAP Vs SIGNAL Vs SIGNAL STAND BY MUTE NC NC Vs POWER OUT Vs POWER 7 2 IC ...

Page 23: ...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 24: ...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 control terminal...