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Service Manual
GM-X554/X1R/EW
ORDER NO.
CRT2613
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X554 GM-X554
X1R/EW X1R/ES
X1R/UC
GM-X554
CONTENTS
1. 2. 3. 4. 5. SAFETY INFORMATION............................................2 EXPLODED VIEWS AND PARTS LIST ......................2 SCHEMATIC DIAGRAM.............................................6 PCB CONNECTION DIAGRAM................................12 ELECTRICAL PARTS LIST........................................16 6. ADJUSTMENT .........................................................19 7. GENERAL INFORMATION.......................................20 7.1 DISASSEMBLY ..................................................20 8. OPERATIONS AND SPECIFICATIONS ....................21
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
C PIONEER CORPORATION 2000
K-ZZS. NOV. 2000 Printed in Japan
GM-X554
1. SAFETY INFORMATION
- GM-X554/X1R/UC
CAUTION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such 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 parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
2
GM-X554
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.
- PACKING SECTION PARTS LIST
Mark No. * 1-1 1-2 1-3 * 1-4 2 3 4 5 6 7 Description Warranty Card Owner's Manual Owner's Manual Card Screw Polyethylene Bag Polyethylene Bag Carton Contain Box Protector GM-X554/X1R/UC Not used HRD0167 Not used ARY1048 BYC40P180FZK HEG0011 HEG0022 HHG0281 HHL0281 HHP0107 HNS0101 Part No. GM-X554/X1R/EW HRY1157 HRD0159 Not used Not used BYC40P180FZK HEG0011 HEG0022 HHG0281 HHL0281 HHP0107 HNS0101 GM-X554/X1R/ES Not used HRD0168 HRD0174 Not used BYC40P180FZK HEG0011 HEG0022 HHG0281 HHL0281 HHP0107 HNS0101
8 Cover
- Owner's Manual
Model GM-X554/X1R/UC GM-X554/X1R/EW GM-X554/X1R/ES Part No. HRD0167 HRD0159 HRD0168 HRD0174 Language English, French English, Spanish, German, French, Italian, Dutch English, Spanish Portuguese(B), Arabic
3
GM-X554
2.2 EXTERIOR
A
4
GM-X554
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description 1 Screw 2 Screw 3 Screw 4 Screw 5 Screw(M3x12) 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Screw(M3x5) Screw(M3x8) Panel Case Panel Holder Heat Sink Cover Spacer Amp Unit Terminal(CN604) Fuse(20A) Pin Jack(CN852) Pin Jack(CN851) Terminal(CN601) Part No. BBZ30P050FMC BBZ30P060FMC BBZ30P080FMC BSZ30P050FZK CBA1323 HBA0006 HBA0011
See Contrast table(2)
Mark No. Description 21 Connector(CN301) 22 Clip 23 Holder 24 Screw 25 Light Pipe Unit 26 Screw
Part No. HKE0030 HNC0054 HNC0082 PPZ30P100SAD HXA0322 PPZ30P100FZK
HNB0134
See Contrast table(2)
HNC0080
See Contrast table(2)
HNS0101 HNV0016
See Contrast table(2)
CKF1059 HEK0020 HKB0002 HKB0006 HKE0020
(2) CONTRAST TABLE GM-X554/X1R/UC, EW and ES are constructed the same except for the following:
Mark No. 8 10 12 15 Description Panel Panel Heat Sink Amp Unit GM-X554/X1R/UC HNB0128 HNB0136 HNR0181 HWH0148 Part No. GM-X554/X1R/EW HNB0147 HNB0142 HNR0187 HWH0147 GM-X554/X1R/ES HNB0128 HNB0136 HNR0181 HWH0149
5
1
2
3
4
GM-X554
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
Large size SCH diagram
A-a
A-a
A-b
HP/LP FILTER 40 - 120Hz 12dB/OCTAVE
A-a A-b
HP/LP FILTER
Guide page
ISOLATOR GAIN = 1
A-a A-b
Detailed page
OUTPUT L
OUTPUT R
B
V
V
INPUT SELECT
C
±25V REGULATOR
DC/DC CONVERTER
(EW,ES model)
BFC
D
6
A
1
2
3
4
5
6
7
8
GM-X554
A-b
POWER AMP
A
A
AMP UNIT
AMP GAIN = 7 - 31dB
GAIN
B
C
POWER CONTROL / MUTE
D
5
6
7
A
7 8
B A
D C
8
A-a A-b
GM-X554
A-a
HP/LP FILTER 40 - 120Hz 12dB/OCTAVE HP/LP FILTER
1
1
ISOLATOR GAIN = 1
2
2
V V
OUTPUT L
OUTPUT R
3
3
INPUT SELECT
4
4
5
5
±25V REGULATOR
6
6
DC/DC CONVERTER
(EW,ES model)
BFC
7
7
A-a
A-a A-b
A B C
GM-X554
8
8
9
D
B A
D C
10
A-a A-b
GM-X554
A-b
POWER AMP
AMP GAIN = 7 - 31dB
1
1
A
AMP UNIT
GAIN
2
2
3
3
4
4
5
5
6
6
POWER CONTROL / MUTE
7
7
A-b
A-a A-b
A B C
GM-X554
8
8
11
D
1
2
3
4
GM-X554
4. PCB CONNECTION DIAGRAM
4.1 AMP UNIT
NOTE FOR PCB DIAGRAMS
A
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. 2. Viewpoint of PCB diagrams
Connector Capacitor
A AMP UNIT
GAIN
LPF/ HPF SELECT
SIDE A
FREQ
P.C.Board
Chip Part
SIDE B
B
INPUT SELECT
INPUT B L INPUT A R
OUTPUT
C
FREQ
LPF/ HPF SELECT
GAIN
D
12
A
1
2
3
4
5
6
7
8
GM-X554
SIDE A
A
FUSE
B
C
BFC
D
5
6
7
A
8
13
1
2
3
4
GM-X554
A
A
AMP UNIT
B
C
POWER
D
14
A
1
2
3
4
5
6
7
8
GM-X554
SIDE B
A
B
WER
C
D
5
6
7
A
8
15
GM-X554
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.....
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Part No. ------------------------=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q D D D D D D D D D D D D D D D D D D D D D D D D D 336 337 338 339 340 601 602 603 604 606 607 608 609 610 611 612 613 614 615 616 617 901 902 903 904 905 906 907 908 909 305 306 307 308 309 310 311 312 601 602 603 606 607 610 611 612 613 662 663 901 902 903 904 909 910 Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor FET FET FET FET FET FET Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode LED Part No. ------------------------2SD2438 2SB1587 2SB1587 2SB1587 2SB1587 2SC2458 2SA1048 2SB1243 2SA1048 2SD1919 2SD1919 2SB1277 2SB1277 STP55NE06FP STP55NE06FP STP55NE06FP STP55NE06FP STP55NE06FP STP55NE06FP 2SD2395 2SB1566 2SD1768S 2SD1768S 2SD1768S 2SD1768S 2SA1048 2SC2458 2SC2458 2SC2458 2SA1048 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 RM4Z HZS7L(B2) 1SS133 1SS133 1SS133 FML22R FML22S HZS16L(1) HZS16L(1) ERA15-02VH ERA15-02VH 1SS133 1SS133 1SS133 1SS133 1SS133 SML210LT(LMN)
A
IC IC IC IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Unit Number : HWH0148(GM-X554/X1R/UC) : HWH0147(GM-X554/X1R/EW) : HWH0149(GM-X554/X1R/ES) Unit Name : Amp Unit
121 122 123 124 125 126 127 128 601 602 851 852 853 854 201 202 203 204 207 301 302 303 304 305 306 307 308 309 310 311 312 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 IC IC IC IC IC IC IC IC IC IC IC IC IC IC Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor NJM2068D NJM2068D NJM2068D NJM2068D NJM2068D NJM2068D NJM2068D NJM2068D PA2027A UPC494C NJM2068D NJM2068D NJM2068D NJM2068D 2SC2458 2SC2458 2SC2458 2SC2458 2SA1048 2SA992 2SA992 2SA992 2SA992 2SA992 2SA992 2SA992 2SA992 2SC5168 2SC5168 2SC5168 2SC5168 2SC1845 2SC1845 2SC1845 2SC1845 2SA992 2SA992 2SA992 2SA992 2SC1845 2SC1845 2SC1845 2SC1845 2SC1845 2SC1845 2SC1845 2SC1845 2SD2438 2SD2438 2SD2438
MISCELLANEOUS
16
GM-X554
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------L L L L T TH TH TH S S S S VR VR VR VR 851 852 853 854 601 601 602 603 101 102 601 851 121 122 201 202 Ferri-Inductor Ferri-Inductor Ferri-Inductor Ferri-Inductor Transformer Thermistor Thermistor Thermistor Switch(LPF/HPF SELECT) Switch(LPF/HPF SELECT) Switch(BFC)(EW,ES model) Switch(INPUT SELECT) 20k(E) 20k(E) 10k(A) 10k(A) Fuse 20A
Part No. ------------------------CTF1007 CTF1007 CTF1007 CTF1007 HTT0014 CCX1013 CCX1013 CCX1035 CSH1029 CSH1029 HSH-156CSH1042 CCS1266 CCS1266 CCS1265 CCS1265 HEK0020
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 301 302 303 304 305 306 307 308 309 310 311 312 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 377 378 379 380 381 382
Part No. ------------------------RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU333J RD1/4PU333J RD1/4PU333J RD1/4PU333J RD1/4PU391J RD1/4PU391J RD1/4PU391J RD1/4PU391J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU331J RD1/4PU681J RD1/4PU681J RD1/4PU681J RD1/4PU681J RD1/4PU561J RD1/4PU561J RD1/4PU561J RD1/4PU561J RD1/4PU333J RD1/4PU333J RD1/4PU333J RD1/4PU333J RD1/4PU681J RD1/4PU681J RD1/4PU681J RD1/4PU681J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU101J RD1/4PU101J RD1/4PU101J RD1/4PU101J RD1/4PU512J RD1/4PU512J RD1/4PU512J RD1/4PU512J RD1/4PU222J RD1/4PU222J RD1/4PU222J RD1/4PU222J RD1/4PU181J RD1/4PU181J RD1/4PU181J RD1/4PU181J RD1/4PU100J RD1/4PU100J RD1/4PU100J RD1/4PU100J RD1/4PU100J RD1/4PU100J RD1/4PU100J RD1/4PU100J CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013
RESISTORS R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 139 140 141 142 201 202 203 204 207 208 211 212 213 214 RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S562J RS1/10S562J RS1/10S562J RS1/10S562J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S222J RS1/10S222J RS1/10S222J RS1/10S222J RD1/4PU472J RD1/4PU472J RD1/4PU472J RD1/4PU472J RD1/4PU223J RD1/4PU223J RD1/4PU111J RD1/4PU111J RD1/4PU111J RD1/4PU111J
0.22 0.22 0.22 0.22 0.22 0.22
17
GM-X554
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 383 384 385 386 387 388 389 390 391 392 393 394 395 396 601 602 603 604 605 606 607 608 609 610 611 612 613 614 616 617 618 619 620 621 622 623 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 645 646 647 648 650 651 652 654 655 656 (EW,ES model) 0.22 0.22 0.22 0.22 0.22 0.22 0.22 0.22 0.22 0.22
Part No. ------------------------CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 RS1/2PMF100J RS1/2PMF100J RS1/2PMF100J RS1/2PMF100J RD1/4PU102J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU472J RD1/4PU911J RD1/4PU911J RD1/4PU103J RD1/4PU472J RD1/4PU101J RD1/4PU221J RD1/4PU102J RS1/10S101J RS1/10S103J RS1/10S223J RS1/10S202J RS1/10S473J RS1/10S102J RS1/10S153J RD1/4PU105J RD1/4PU332J RD1/4PU332J RS1/10S472J RS1/10S472J RD1/4PU272J RD1/4PU272J RD1/4PU272J RS1/10S472J RS1/2PMF121J RS1/2PMF121J RD1/4PU472J RD1/4PU472J RS1/2PMF121J RS1/2PMF121J RS1/2PMF121J RS1/2PMF121J RS1/2PMF100J RS1/2PMF100J RS1/2PMF220J RS1/2PMF100J RS1/2PMF100J RD1/4PU472J RD1/4PU472J RD1/4PU104J RD1/4PU183J RD1/4PU563J RD1/4PU223J RD1/4PU223J RD1/4PU223J
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 871 872 873 874 875 876 877 878 901 902 903 904 905 906 907 908 909 910 911 912 917 918 919 920 921 922 923 924 930 931
Part No. ------------------------RS1/10S471J RS1/10S471J RS1/10S471J RS1/10S471J RS1/10S223J RS1/10S223J RS1/10S223J RS1/10S223J RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU564J RD1/4PU564J RD1/4PU564J RD1/4PU564J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU104J RD1/4PU472J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU221J RD1/4PU222J RD1/4PU563J RD1/4PU331J RD1/4PU331J
CAPACITORS
C C C C C C C C C C C C C C C 101 102 103 104 105 106 107 108 109 110 111 112 301 302 303 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CEAS100M16 CEAS100M16 CEAS100M16
18
GM-X554
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 304 305 306 307 308 309 310 311 312 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 601 602 603 604 605 606 607 608 609
Part No. ------------------------CEAS100M16 CKPUYB101K50 CKPUYB101K50 CKPUYB101K50 CKPUYB101K50 CQMA471J50 CQMA471J50 CQMA471J50 CQMA471J50 CEAS101M10 CEAS101M10 CEAS101M10 CEAS101M10 CCCCH220J100 CCCCH220J100 CCCCH220J100 CCCCH220J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CFTLA223J50 CFTLA223J50 CFTLA223J50 CFTLA223J50 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CCCCH100J100 CFTLA333J50 CFTLA333J50 CFTLA333J50 CFTLA333J50 CQMA102J50 CQMA102J50 CQMA102J50 CQMA102J50 CFTLA103J50 CFTNA224J50 CFTLA103J50 CFTLA103J50 CFTLA103J50 CFTLA103J50 CEAS100M16 CEAS100M16 CEAS101M16
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 611 612 613 614 615 616 617 618 619 620 621 623 624 625 626 627 628 629 631 632 633 634 635 636 637 638 639 640 641 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 875 876 877 878 901 3300µF/16V 3300µF/16V 3300µF/35V 3300µF/35V 3300µF/35V 3300µF/35V 470µF/16V
Part No. ------------------------CEAS220M50 CCH1183 CFTLA103J50 CFTLA103J50 CEAS100M16 CEAS221M10 CQMA102J50 CFTLA105J50 CEAS470M50 CQMA472J50 CQMA472J50 HCH0005 HCH0005 CQMA102J50 HCH0006 HCH0006 HCH0006 HCH0006 CEAS471M35 CEAS471M35 CEASR10M50 CEASR10M50 CEAS470M50 CEAS470M50 CFTLA103J50 CFTLA103J50 CCG-081 CCG-081 CFTLA564J50 CEAS100M16 CEAS100M16 CEAS100M16 CEAS100M16 CQMA472J50 CQMA472J50 CQMA472J50 CQMA472J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CKPUYB471K50 CKPUYB471K50 CKPUYB471K50 CKPUYB471K50 CCH1036
220µF/10V
6. ADJUSTMENT
There is no information to be shown in this chapter.
19
GM-X554
7. GENERAL INFORMATION
7.1 DISASSEMBLY
- Removing the Case and the Panel (Fig.1) Case Remove the four screws. Remove the two screws. Remove the three screws and then remove the Case.
Remove the six screws and then remove the Panel. Panel Fig.1
- Removing the Amp Unit (Fig.2) Remove the twenty-four screws. Remove the two screws. Remove the twelve screws and then remove the Amp Unit.
Fig.2 Amp Unit
20
GM-X554
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
- GM-X554/X1R/EW
21
GM-X554
22
Setting the Unit
Power Indicator
The power indicator lights when the power is switched on.
Gain Control
Adjusting the gain controls A and B will help match the output of the car stereo to the Pioneer amplifier. Normally, set the gain controls to the "NORMAL" position. If the output is low, even when the volume of the car stereo is turned up, turn these controls clockwise. If there is distortion when the volume of the car stereo is turned up, turn these controls counter-clockwise.
BFC (Beat Frequency Control) Switch
If you hear a beat while listening to an MW/LW broadcast with your car stereo, change the BFC switch using a small standard tip screwdriver. (GM-X554/X1R/EW,ES)
· If you only use one input plug, set the gain controls for speaker outputs A and B to the same position. · When using with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. When using with an RCA equipped Pioneer car stereo with max. output of 4 V or more, adjust level to match the car stereo output level.
LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch
Set the LPF/HPF select switch as follows according to the type of speaker that is connected to the speaker output connector and the car stereo system: LPF/HPF Select Switch
LPF (Left) OFF (Center) HPF (Right)
Input Select Switch
For two-channel input, slide this switch to the left. For four-channel input, slide this switch to the right.
Audio frequency range to be output
* -- 40 to 120 Hz Full range * 40 to 120 Hz --
Speaker Type
Subwoofer Full range Full range
Remarks
Connect a subwoofer.
Cut Off Frequency Control
If the LPF/HPF select switch is set to LPF or HPF, you can select a cut off frequency from 40 to 120 Hz.
Use if you want to cut the very low frequency range* because it is not necessary for the speakers you are using. * See the "Cut Off Frequency Control" section.
GM-X554
Connection Diagram
Fuse (30 A) Special red battery wire [RD-223] (sold separately) After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Fuse (30 A) Ground wire (Black) [RD-223] (sold separately) Connect to metal body or chassis.
Grommet
RCA input Connecting wires with RCA pin plugs (sold separately).
Amplifier with RCA input jacks
External Output If only one input plug is used, do not connect anything to RCA input jack B.
Car stereo with RCA output jacks
Front side
Input Select Switch For two-channel input, slide this switch to the left. For four-channel input, slide this switch to the right.
RCA output jack
RCA input jack B RCA input jack A
Connecting wires with RCA pin plugs (sold separately). Back side Fuse (20 A) × 2
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, connect the male terminal to the power terminal through the ignition switch.
23
GM-X554
8.2 SPECIFICATIONS
- GM-X554/X1R/UC
Power source ........................................................................ 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system .................................................................................................... Negative type Current consumption .............................................................. 27.1 A (at continuous power, 4 ) Idle current ...................................................................................................................... 4 -- 25 mA Average current drawn* .................................................................. 9.1 A (4 for four channels) .................................................................................................... 14.5 A (4 for two channels) Fuse ...................................................................................................................................... 20 A x 2 Dimensions .................................................................................... 279 (W) x 58 (H) x 324 (D) mm .............................................................................................. [11 (W) x 2-1/4 (H) x 12-3/4 (D) in] Weight ................................................................ 4.8 kg (10.6 lbs) (Leads for wiring not included) Maximum power output .............................................................................. 100 W x 4 / 240 W x 2 Continuous power output ........................ 50 W x 4 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.08% THD) .............................................................. 120 W x 2 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.8% THD) ................................................................ 60 W x 4 (at 14.4 V, 2 , 20 -- 20,000 Hz, 0.8% THD) Load impedance ........................................................................................ 4 (2 -- 8 allowable) .................................................................................... (Bridge connection: 4 -- 8 allowable) Frequency response ...................................................................... 10 -- 50,000 Hz (+0 dB, 1 dB) Signal-to-noise ratio ................................................................................ 100 dB (IHFA network) Distortion ........................................................................................................ 0.008% (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 k (0.4 -- 6.5 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
- GM-X554X1R/EW
Power source .......................................................................... 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ...................................................................................................... Negative type Current consumption ................................................................ 27.1 A (at continuous power, 4 ) Idle current ...................................................................................................................... 4 -- 25 mA Average current drawn* .................................................................... 9.1 A (4 for four channels) ...................................................................................................... 14.5 A (4 for two channels) Fuse ...................................................................................................................................... 20 A x 2 Dimensions ...................................................................................... 279 (W) x 58 (H) x 324 (D) mm Weight .................................................................................. 4.8 kg (Leads for wiring not included) Maximum power output .............................................................................. 100 W x 4 / 240 W x 2 Continuous power output ........................................ 75 W x 4 / 200 W x 2 (DIN45324, +B=14.4 V) Load impedance ........................................................................................ 4 (2 -- 8 allowable) .................................................................................... (Bridge connection: 4 -- 8 allowable) Frequency response ........................................................................ 10 -- 50,000 Hz (+0 dB, 1 dB) Signal-to-noise ratio .................................................................................. 100 dB (IEC-A network) Distortion ........................................................................................................ 0.008% (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 k (0.4 -- 6.5 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
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GM-X554
- GM-X554/X1R/ES
Power source .......................................................................... 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ...................................................................................................... Negative type Current consumption ................................................................ 27.1 A (at continuous power, 4 ) Idle current ...................................................................................................................... 4 -- 25 mA Average current drawn* .................................................................... 9.1 A (4 for four channels) ......................................................................................................14.5 A (4 for two channels) Fuse ...................................................................................................................................... 20 A x 2 Dimensions ...................................................................................... 279 (W) x 58 (H) x 324 (D) mm Weight .................................................................................. 4.8 kg (Leads for wiring not included) Maximum power output .............................................................................. 100 W x 4 / 240 W x 2 Continuous power output ........................ 50 W x 4 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.08% THD) .............................................................. 120 W x 2 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.8% THD) ................................................................ 60 W x 4 (at 14.4 V, 2 , 20 -- 20,000 Hz, 0.8% THD) Load impedance ........................................................................................ 4 (2 -- 8 allowable) .................................................................................... (Bridge connection: 4 -- 8 allowable) Frequency response ........................................................................ 10 -- 50,000 Hz (+0 dB, 1 dB) Signal-to-noise ratio .................................................................................. 100 dB (IEC-A network) Distortion ........................................................................................................ 0.008% (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 k (0.4 -- 6.5 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
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