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GM-X1024/X1R/UC

BRIDGEABL FOUR-CHANNEL POWER AMPLIFIER

GM-X1024 

X1R/UC

S

ervice

M

anua

l

GM-X924 

X1R/UC,EW,ES

PIONEER ELECTRONIC CORPORATION

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

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.   

501 Orchard Road, #10-00, Lane Wheelock Place, Singapore 23880

PIONEER ELECTRONIC CORPORATION 1998 

ORDER NO.

CRT2191

CONTENTS

1. SAFETY INFORMATION ............................................2

2. EXPLODED VIEWS AND PARTS LIST .......................2

3. SCHEMATIC DIAGRAM .............................................8

4. PCB CONNECTION DIAGRAM ................................14

5. ELECTRICAL PARTS LIST ........................................19

6. ADJUSTMENT..........................................................25

7. GENERAL INFORMATION .......................................26

7.1 IC ........................................................................26

7.2 DISASSEMBLY ...................................................27

7.3 BLOCK DIAGRAM ..............................................28

8. OPERATIONS AND SPECIFICATIONS.....................29

K-FED. MAR. 1998 Printed in Japan

Summary of Contents for GM-X1024/X1R/UC

Page 1: ...ven 1087 Keetberglaan 1 9120 Melsele Belgium PIONEER ELECTRONICS ASIACENTRE PTE LTD 501 Orchard Road 10 00 Lane Wheelock Place Singapore 23880 C PIONEER ELECTRONIC CORPORATION 1998 ORDER NO CRT2191 CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 2 3 SCHEMATIC DIAGRAM 8 4 PCB CONNECTION DIAGRAM 14 5 ELECTRICAL PARTS LIST 19 6 ADJUSTMENT 25 7 GENERAL INFORMATION 26 7 1 IC 26 7 2 DISA...

Page 2: ...nd reliability of the product and may void the warranty If you are not qualified to perform the repair of this product properly and safely you should not risk trying to do so and refer the repair to a qualified service technician WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other ...

Page 3: ...er s Manual See Contrast table 2 2 CONTRAST TABLE GM X1024 X1R UC GM X924 X1R UC GM X924 X1R EW and GM X924 X1R ES are constructed the same except for the following Part No GM X1024 GM X924 Mark No Symbol and Description X1R UC X1R UC X1R EW X1R ES 7 Carton HHG0154 HHG0155 HHG0158 HHG0157 8 Contain Box HHL0154 HHL0155 HHL0158 HHL0157 10 1 Owner s Manual HRD0056 HRD0057 HRD0059 HRD0058 10 2 Card No...

Page 4: ...4 GM X1024 GM X924 2 2 EXTERIOR Fig 2 ...

Page 5: ...S3816 46 Cord CN502 HDE5501 47 Cord CN552 HDE5501 48 Cord CN854 HDE5501 49 Cord CN855 HDE5501 50 Holder HNC0029 51 Clip HNC0054 52 Screw M3 25 HBA0013 53 Fan Motor CXM1102 54 Fuse HEK0030 55 Pin Jack CN801 HKB0002 56 Pin Jack CN851 HKB0004 57 Terminal CN101 HKE0010 58 Terminal CN301 HKE0010 59 Fuse Holder CN902 HKE0012 60 Terminal CN901 HKE0014 61 Holder HNC0027 62 Holder HNC0028 63 Screw PPZ30P06...

Page 6: ...5 39 Network Unit HWG0008 HWG0009 HWG0006 HWG0007 64 Plate Unit HXA0262 HXA0112 HXA0112 HXA0112 65 Sheet Unit HXA0264 HXA0116 HXA0116 HXA0116 67 Plate Unit HXA0205 HXA0202 HXA0202 HXA0202 68 Panel Unit HXA0249 HXA0244 HXA0244 HXA0244 69 Panel HNB0064 HNB0038 HNB0038 HNB0038 70 Plate HNS0064 HNS0039 HNS0039 HNS0039 71 Panel Unit HXA0251 HXA0247 HXA0247 HXA0247 72 Panel HNB0066 HNB0043 HNB0043 HNB00...

Page 7: ...7 GM X1024 GM X924 ...

Page 8: ...L PARTS LIST A B C D A a 1 2 OFF OFF HPF LPF VR501 FREQUENCY S501 LPF HPF VR501 FREQUENCY S501 LPF HPF VR551 FREQUENCY S551 LPF HPF OFF OFF VR551 FREQUENCY S551 LPF HPF HPF LPF SWITCHING CONTROL DC AC INVERTER 15V REGULATOR RECTIFICATION 15V REGULATOR ISOLATOR BFC H L 2CH 4CH 2CH 4CH GM X924 X1R EW GM X924 X1R ES B C D 7 7dBm 10 2dBm 10dBm 14 4dB 15 4V 15 4V 42 1V 42 1V 29 0V 29 0V 3 9V 3 9V 14 4V...

Page 9: ... C D 5 6 A E F A b 7 8 Fig 3 POWER STAGE OVER CURRENT DETECTOR THERMO DETECTOR PROTECTOR OVER VOLTAGE DETECTOR PROTECTOR MUTE CONTROL REGULATOR CONTROL F E A 20 4dBm 0V 0 2V 14 4V 14 2V 10 7V 14 4V 0 1V 3 2V 0 3V 5V 0V 0 2V 0V 14 4V ...

Page 10: ... C D 2 3 4 A a A a A b 1 OFF OFF HPF LPF VR501 FREQUENCY S501 LPF HPF VR501 FREQUENCY S501 LPF HPF VR551 FREQUENCY S551 LPF HPF OFF OFF VR551 FREQUENCY S551 LPF HPF HPF LPF ISOLATOR 2CH 4CH 2CH 4CH 7 7dBm 10 2dBm 10dBm 14 4dBm C D B ...

Page 11: ...LATOR RECTIFICATION 15V REGULATOR BFC H L GM X924 X1R EW GM X924 X1R ES 15 4V 15 4V 42 1V 42 1V 29 0V 29 0V 3 9V 3 9V 14 4V 5V 5V 2 4V 2 4V 14 4V 0V 3 8V 1 8V 2 2V 0V 6 5V D903 D904 NSPWF50S AQ 11 GM X1024 GM X924 5 6 7 8 A B C D 5 6 7 A a A b A a Fig 4 B D 8 ...

Page 12: ...12 GM X1024 GM X924 A 1 2 3 4 B C D 2 3 4 A b A a A b 1 POWER STAGE OVER CURRENT DETECTOR 20 4dBm 14 4dBm E F ...

Page 13: ...ECTOR PROTECTOR OVER VOLTAGE DETECTOR PROTECTOR MUTE CONTROL REGULATOR CONTROL 0V 0 2V 14 4V 14 2V 10 7V 14 4V 0 1V 3 2V 0 3V 5V 0V 0 2V 0V 14 4V AQ 13 GM X1024 GM X924 5 6 7 8 A B C D 5 6 7 A a A b A b Fig 5 F 8 ...

Page 14: ...14 GM X1024 GM X924 A 1 2 3 4 B C D 2 3 4 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 diagram 4 PCB CONNECTION DIAGRAM 4 1 AMP UNIT A 1 ...

Page 15: ... OUTPUT AR AR AL AL SPEAKER OUTPUT FU902 BACKUP GND SYSTEM CONTROL FU901 BFC A B 15 GM X1024 GM X924 5 6 7 8 A B C D 5 6 7 Capacitor Connector P C Board Chip Part SIDE A SIDE B 2 Viewpoint of PCB diagrams A 8 Fig 6 SIDE A ...

Page 16: ...16 GM X1024 GM X924 A 1 2 3 4 B C D 1 2 3 4 4 2 ISO PCB B D CN551 A CN852 B ISO PCB C CN501 A CN853 Fig 7 SIDE A ...

Page 17: ...3 4 C 4 3 A LPF HPF PCB 1 2 3 4 5 6 7 8 9 10 S501 LPF HPF S501 FREQUENCY GAIN 1 2 3 4 5 6 7 8 9 10 S551 LPF HPF FREQUENCY GAIN S551 D 4 4 B LPF HPF PCB B CN854 A CN503 C A LPF HPF PCB D B LPF HPF PCB B CN855 A CN553 SIDE A SIDE A Fig 8 Fig 9 ...

Page 18: ...18 GM X1024 GM X924 A 1 2 3 4 B C D 1 2 3 4 4 5 A P A PCB E F 4 6 B P A PCB E A P A PCB F B P A PCB A CN303 A CN103 Fig 10 Fig 11 SIDE A SIDE A ...

Page 19: ...sistor 2SC2458 Q 721 Transistor 2SC2458 Q 731 Transistor 2SC2458 Q 741 Transistor 2SC2458 D 101 Diode HZS6L B1 D 106 Diode HZS6L B1 D 201 Diode HZS6L B1 D 206 Diode HZS6L B1 D 301 Diode HZS6L B1 D 306 Diode HZS6L B1 D 401 Diode HZS6L B1 D 406 Diode HZS6L B1 S 501 Switch LPF HPF CSH1029 S 551 Switch LPF HPF CSH1029 VR 501 Volume 20kΩ E CCS1266 VR 502 Volume 10kΩ A CCS1265 VR 551 Volume 20kΩ E CCS12...

Page 20: ...M471J R 852 RD1 4PU223J R 853 RD1 4PU103J R 854 RD1 4PU332J R 855 RN1 4PC1002D R 856 RN1 4PC1002D R 857 RN1 4PC7501D R 858 RN1 4PC7501D R 861 RD1 2PM471J R 862 RD1 4PU223J R 863 RD1 4PU103J R 864 RD1 4PU332J R 865 RN1 4PC1002D R 866 RN1 4PC1002D R 867 RN1 4PC7501D R 868 RN1 4PC7501D R 871 RD1 2PM471J R 872 RD1 4PU223J R 873 RD1 4PU103J R 874 RD1 4PU332J R 875 RN1 4PC1002D R 876 RN1 4PC1002D R 877 ...

Page 21: ...nsistor 2SA1909 Q 309 Transistor 2SA992 Q 310 Transistor 2SC1845 Q 311 Transistor 2SA992 Q 312 Transistor 2SC1568 Q 313 Transistor 2SC3421 Q 314 Transistor 2SA1358 Q 315 Transistor 2SC5101 Q 316 Transistor 2SA1909 Q 409 Transistor 2SA992 Q 410 Transistor 2SC1845 Q 411 Transistor 2SA992 Q 412 Transistor 2SC1568 Q 413 Transistor 2SC3421 Q 414 Transistor 2SA1358 Q 415 Transistor 2SC5101 Q 416 Transis...

Page 22: ...2J R 115 RD1 4PU390J R 116 RD1 4PU221J R 117 RD1 4PU821J R 118 RD1 4PU561J R 119 RD1 4PU470J R 120 RD1 4PU470J R 121 RD1 2PM100J R 122 RD1 2PM100J R 123 0 1Ω 5W CCN1090 R 124 0 1Ω 5W CCN1090 R 125 RD1 4PU221J R 126 RD1 4PU100J R 213 RD1 4PU333J R 214 RD1 4PU102J R 215 RD1 4PU390J R 216 RD1 4PU221J R 217 RD1 4PU821J R 218 RD1 4PU561J R 219 RD1 4PU470J R 220 RD1 4PU470J R 221 RD1 2PM100J R 222 RD1 2...

Page 23: ...2PM100J R 990 RD1 2PM470J R 991 RD1 2PM470J R 992 RD1 4PU472J R 993 RD1 4PU472J R 994 RD1 2PM330J R 995 See Contrast table R 996 RD1 2PM220J R 997 RD1 4PU101J CAPACITORS C 111 CMA150J2H C 112 CFTLA104J50 C 113 CFTLA104J50 C 114 CFTLA104J50 C 115 CMA101J2H C 116 CMA101J2H C 117 CFTLA333J50 C 118 CQPA102G2A C 211 CMA150J2H C 212 CFTLA104J50 C 213 CFTLA104J50 C 214 CFTLA104J50 C 215 CMA101J2H C 216 C...

Page 24: ...70M16 C 974 CEKA471M50 C 975 CEKA471M50 C 976 CQPA102J2A C 995 CFTLA104J50 C 996 CFTLA104J50 Circuit Symbol and No Part Name Part No Circuit Symbol and No Part Name Part No CONTRAST TABLE of AMP UNIT GM X1024 X1R UC GM X924 X1R UC GM X924 X1R EW and GM X924 X1R ES are constructed the same except for the following Part No Symbol and Description GM X1024 X1R UC GM X924 X1R UC GM X924 X1R EW GM X924 ...

Page 25: ...just 30 seconds after 1kΩ terminate VR951 mV Meter 2 29 3V voltage power is switched on and within 20 VR952 mV Meter 3 29 3V adjustment seconds Connection Diagram BL 1kΩ Q115 SYSTEM CONTROL GND POWER VR952 VR101 VR301 mV Meter 1 DC Regulated Power Supply mV Meter 1 E C E Q116 GND Q315 Q316 1kΩ BR E E mV Meter 3 AMP UNIT 4Ω 2W 14 4V 4Ω 2W SPEAKER B OUTPUT Q215 mV Meter 1 mV Meter 1 E C E Q216 Q415 ...

Page 26: ...5 6 7 8 9 10 11 12 13 14 15 16 VCC Stby DET1 DET2 DET_R GND NC NC IN1 IN2 IN3 Cont_V Filter Vs_out TC Mute_out zz 2V zz 2V zz 2V 2V zz 2V 20µA zz 2V zz 50µA 4 7kΩ Transient voltage detector Bandgap Circuit motion on 5 6V Q S R Oneshot 1µsec Bandgap on Switch on 0 13V ...

Page 27: ...t screws F 4 Use 2 pcs of screw E and insert them into the two holes marked with an arrow 5 Alternately tighten them little by little until the Heat Sink Sub separates from the Heat Sink Fig 14 Removing the Case and the Panel Unit 1 Remove eight screws A seven screws B and two screws C 2 Remove Case and Panel Units Fig 13 Case Panel Unit Panel Unit Heat Sink Sub B LPF HPF PCB Heat Sink Sub Amp Uni...

Page 28: ...28 GM X1024 GM X924 7 3 BLOCK DIAGRAM Fig 15 ...

Page 29: ...ain control to the MIN side of NORMAL when this amplifier is con nected to a Pioneer car stereo High volt age output type Power Indicator The power indicator lights when the power is switched on RCA Input Select Switch For two channel input slide this switch to the left For four channel input slide this switch to the right Cut Off Frequency Control If the LPF HPF select switch is set to LPF or HPF...

Page 30: ...h mov ing parts of the vehicle such as the gearshift handbrake or seat sliding mechanism Do not shorten any wires Otherwise the protec tion circuit may fail to work when it should Never feed power to other equipment by cutting the insulation of the power supply wire to tap from the wire The current capacity of the wire will be exceeded causing overheating Fuse 30 A Grommet RCA input Special red ba...

Page 31: ...voltage output type Cut Off Frequency Control If the LPF HPF select switch is set to LPF or HPF you can select a cut off frequency from 50 to 120 Hz Power Indicator The power indicator lights when the power is switched on BFC Beat Frequency Control Switch If you hear a beat while listening to an AM broadcast with your car stereo change the BFC switch using a small screwdriver LPF Low Pass Filter H...

Page 32: ...hicle such as the gearshift handbrake or seat sliding mechanism Do not shorten any wires Otherwise the protec tion circuit may fail to work when it should Never feed power to other equipment by cutting the insulation of the power supply wire to tap from the wire The current capacity of the wire will be exceeded causing overheating Speaker Channel Speaker Type Power Four channel Sub woofer Nominal ...

Page 33: ... total current drawn by multiple power amplifiers GM X1024 X1R UC GM X924 X1R UC GM X924 X1R EW GM X924 X1R ES Specifications Power source 14 4 V DC 10 8 15 1 V allowable Grounding system Negative type Current consumption 39 A at continuous power 4 Ω Average current drawn 11 A 4 Ω for four channels 18 A 4 Ω for two channels Fuse 30 A 2 Dimensions 255 W 61 H 310 D mm Weight 4 1 kg Leads for wiring ...

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