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PIONEER 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 EUROPE N.V.

Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium 

PIONEER ELECTRONICS ASIACENTRE PTE.LTD.

253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2000

K-ZZA. FEB. 2000 Printed in Japan

ORDER NO.

CRT2479

BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER

GM-X644

X1R/UC,EW

Service
Manual

CONTENTS

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

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

3. SCHEMATIC DIAGRAM .............................................6

4. PCB CONNECTION DIAGRAM................................12

5. ELECTRICAL PARTS LIST........................................16

6. ADJUSTMENT .........................................................20

7. GENERAL INFORMATION.......................................21

7.1 DISASSEMBLY ..................................................21

8. OPERATIONS AND SPECIFICATIONS ....................22

GM-X544

X1R/UC,ES

GM-X644/X1R/UC

Summary of Contents for GM-X544

Page 1: ...Alexandra Road 04 01 Singapore 159936 C PIONEER CORPORATION 2000 K ZZA FEB 2000 Printed in Japan ORDER NO CRT2479 BRIDGEABLE FOUR CHANNEL POWER AMPLIFIER GM X644 X1R UC EW Service Manual CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 2 3 SCHEMATIC DIAGRAM 6 4 PCB CONNECTION DIAGRAM 12 5 ELECTRICAL PARTS LIST 16 6 ADJUSTMENT 20 7 GENERAL INFORMATION 21 7 1 DISASSEMBLY 21 8 OPERATIO...

Page 2: ...uch as those covered by this manual Improperly performed repairs can adversely affect the safety and 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 This product contains lead in solder and certain electrical part...

Page 3: ...Carton HHG0237 HHG0238 HHG0236 HHG0239 6 Contain Box HHL0237 HHL0238 HHL0236 HHL0239 7 Protector HHP0076 HHP0076 HHP0076 HHP0076 8 1 Owner s Manual HRD0132 HRD0133 HRD0131 HRD0134 8 2 Owner s Manual Not used Not used Not used HRD0142 8 3 PRC HRY0012 Not used HRY0012 Not used 8 4 Warranty Card Not used HRY1157 Not used Not used 8 5 Card Not used Not used ARY1048 Not used 9 Cover HNS0101 HNS0101 HNS...

Page 4: ...4 GM X644 X544 2 2 EXTERIOR ...

Page 5: ...nnector CN301 HKE0030 18 Clip HNC0054 19 Heat Sink HNR0166 20 Heat Sink HNR0167 21 Screw PPZ30P100SAD 22 Light Pipe Unit HXA0322 23 Screw PPZ30P100FZK 24 Fuse Holder HKE0012 25 Connector CN601 HKE0020 26 Transistor Q616 2SD2395 27 Transistor Q617 2SB1566 28 Diode D610 FML22S 29 Diode D611 FML22R 30 Thermistor TH601 602 CCX1013 2 CONTRAST TABLE GM X644 X1R UC EW and GM X544 X1R UC ES are constructe...

Page 6: ...H 2CH 6 GM X644 X544 A 1 2 3 4 B C D 1 2 3 4 A a A b A a A a A b A b A b A b A a A a Large size SCH diagram Guide page Detailed page A 3 SCHEMATIC DIAGRAM 3 1 OVERALL CONNECTION DIAGRAM GUIDE PAGE Note When ordering service parts be sure to refer to EXPLODED VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST A a ...

Page 7: ...eplacing 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 AMP GAIN 7 31dB A AMP UNIT EW ES OFF LPF HPF OFF LPF HPF BFC HEK0025 HEK0025 1K B 1K B 1K B 1K B 7 GM X644 X544 5 6 7 8 A B C D 5 6 7 8...

Page 8: ...8 GM X644 X544 A 1 2 3 4 B C D 1 2 3 4 HP LP FILTER 40 120Hz 12dB octave ISOLATOR CIRCUIT GAIN 1 RCA OUT L GAIN 1 RCA OUT R GAIN 1 OFF OFF 4CH 2CH A a A a A b 1 2 3 ...

Page 9: ...9 GM X644 X544 5 6 7 8 A B C D 5 6 7 8 POWER SUPPLY EW ES BFC A a A a A b 4 5 ...

Page 10: ...10 GM X644 X544 A 1 2 3 4 B C D 1 2 3 4 AMP GAIN 7 31dB A AMP UNIT OFF LPF HPF OFF LPF HPF 1K B 1K B A a A b A b 1 2 3 ...

Page 11: ...tes 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 BFC HEK0025 HEK0025 1K B 1K B A a A b A b 4 5 ...

Page 12: ...d on this PCB include all necessary parts for several destination For further information for respective destinations be sure to check with the schematic diagram 2 Viewpoint of PCB diagrams Capacitor Connector P C Board Chip Part SIDE A SIDE B A 1 1 2 3 1 2 3 1 2 3 1 2 3 3 2 4 6 3 5 7 1 2 4 6 3 5 7 1 3 4 5 6 9 10 11 12 4CH iu 2CH ...

Page 13: ...13 GM X644 X544 5 6 7 8 A B C D 5 6 7 8 A 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 2 4 6 3 5 7 1 2 4 6 3 5 7 1 B GND BREM AR AR AL AL BR BR BL BL BFC SIDE A ...

Page 14: ...14 GM X644 X544 A 1 2 3 4 B C D 1 2 3 4 A A AMP UNIT ...

Page 15: ...15 GM X644 X544 5 6 7 8 A B C D 5 6 7 8 A SIDE B ...

Page 16: ...08 Transistor 2SC2458 5 ELECTRICAL PARTS LIST NOTE Parts whose parts numbers are omitted are subject to being not supplied The part numbers shown below indicate chip components Chip Resistor RS1 _S___J RS1 __S___J Chip Capacitor except for CQS CKS CCS CSZS Unit Number HWH0117 GM X644 X1R UC HWH0126 GM X644 X1R EW HWH0125 GM X544 X1R UC HWH0127 GM X544 X1R ES Unit Name Amp Unit MISCELLANEOUS IC 121...

Page 17: ...1kΩ B CCP1200 FU 601 Fuse 25A HEK0025 FU 602 Fuse 25A HEK0025 RESISTORS R 101 RS1 10S103J R 102 RS1 10S103J R 103 RS1 10S103J R 104 RS1 10S103J R 105 RS1 10S103J R 106 RS1 10S103J R 107 RS1 10S103J R 108 RS1 10S103J R 109 RS1 10S103J R 110 RS1 10S103J R 111 RS1 10S103J R 112 RS1 10S103J R 113 RS1 10S472J R 114 RS1 10S472J R 115 RS1 10S472J R 116 RS1 10S472J R 117 RS1 10S103J R 118 RS1 10S103J R 11...

Page 18: ...1 4PU102J R 399 RD1 4PU102J R 400 RD1 4PU102J R 401 RD1 4PU101J R 402 RD1 4PU101J R 403 RD1 4PU101J R 404 RD1 4PU101J R 405 RS1 10S101J R 406 RS1 10S101J R 407 RS1 10S101J R 408 RS1 10S101J R 409 RS1 10S101J R 410 RS1 10S101J R 411 RS1 10S101J R 412 RS1 10S101J R 413 0 1Ω CCN1082 R 414 0 1Ω CCN1082 R 415 0 1Ω CCN1082 R 416 0 1Ω CCN1082 R 417 RS1 2PMF100J R 418 RS1 2PMF100J R 419 RS1 2PMF100J R 420...

Page 19: ...72J R 919 RD1 4PU103J R 920 RD1 4PU222J R 921 RD1 4PU472J R 922 RD1 4PU221J R 923 RD1 4PU222J R 924 RD1 4PU563J R 930 RD1 4PU331J R 931 RD1 4PU331J CAPACITORS C 101 CCSQCH470J50 C 102 CCSQCH470J50 C 103 CCSQCH470J50 C 104 CCSQCH470J50 C 105 CFTLA154J50 C 106 CFTLA154J50 C 107 CFTLA154J50 C 108 CFTLA154J50 C 109 CFTLA154J50 C 110 CFTLA154J50 C 111 CFTLA154J50 C 112 CFTLA154J50 C 201 CCSQCH330J50 C ...

Page 20: ...SQYB102K50 C 633 CEASR10M50 C 634 CEASR10M50 C 635 CEAS470M50 C 636 CEAS470M50 C 637 CEAS101M16 C 638 CEAS101M16 C 639 CKSQYB102K50 C 640 CKSQYB102K50 C 641 CFTLA564J50 C 851 CEAS100M16 C 852 CEAS100M16 C 853 CEAS100M16 C 854 CEAS100M16 C 855 CQMA472J50 C 856 CQMA472J50 C 857 CQMA472J50 C 858 CQMA472J50 C 859 CCSQCH470J50 C 860 CCSQCH470J50 C 861 CCSQCH470J50 C 862 CCSQCH470J50 C 863 CCSQCH271J50 ...

Page 21: ...1 Remove the six screws Remove the screw Remove the three screws Remove the six screws and then remove the Case Remove the screw and then remove the Plate Fig 2 Plate Removing the Amp Unit Fig 2 Remove the twelve screws Remove the two screws Remove the five screws and then remove the Amp Unit Amp Unit ...

Page 22: ...22 GM X644 X544 8 OPERATIONS AND SPECIFICATIONS 8 1 OPERATIONS ...

Page 23: ...hear too much noise when using the speaker input terminals turn the gain control counter clockwise Power Indicator The power indicator lights when the power is switched on 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 you can select a cut off f...

Page 24: ...ting wires with RCA pin plugs sold separately RCA input jack B RCA output jack Speaker terminal 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 If the car stereo does not have a system remote control terminal...

Page 25: ...000 Hz 0 4 THD Load impedance 4 Ω 1 8 Ω allowable Bridge connection 2 8 Ω allowable Frequency response 10 50 000 Hz 0 dB 1 dB Signal to noise ratio 105 dB IHF A network Distortion 0 005 10 W 1 kHz Separation 65 dB 1 kHz Low pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct High pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct Maximum input level impedance RCA 6 5 V 22 ...

Page 26: ...llowable Frequency response 10 50 000 Hz 0 dB 1 dB Signal to noise ratio 105 dB IEC A network Distortion 0 005 10 W 1 kHz Separation 65 dB 1 kHz Low pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct High pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct Maximum input level impedance RCA 6 5 V 22 kΩ 0 4 6 5 V Speaker 26 V 40 kΩ 1 6 26 V Note Specifications and the design...

Page 27: ...4 THD Load impedance 4 Ω 1 8 Ω allowable Bridge connection 2 8 Ω allowable Frequency response 10 50 000 Hz 0 dB 1 dB Signal to noise ratio 105 dB IHF A network Distortion 0 005 10 W 1 kHz Separation 65 dB 1 kHz Low pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct High pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct Maximum input level impedance RCA 6 5 V 22 kΩ 0 4 6 ...

Page 28: ... 4 Ω 1 8 Ω allowable Bridge connection 2 8 Ω allowable Frequency response 10 50 000 Hz 0 dB 1 dB Signal to noise ratio 100 dB IEC A network Distortion 0 005 10 W 1 kHz Separation 60 dB 1 kHz Low pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct High pass filter Cut off frequency 40 120 Hz Cut off slope 12 dB oct Maximum input level impedance RCA 6 5 V 22 kΩ 0 4 6 5 V Speaker 26 V 40 ...

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