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Service Manual
BRIDGEABLE POWER AMPLIFIER
GM-X642/X1R/EW
ORDER NO.
CRT2480
GM-X642 GM-X542
X1R/UC,ES
X1R/EW
CONTENTS
1. 2. 3. 4. 5. SAFETY INFORMATION............................................2 EXPLODED VIEWS AND PARTS LIST ......................3 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-ZZA. MAR. 2000 Printed in Japan
GM-X642,X542
1. SAFETY INFORMATION
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
GM-X642,X542
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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 Owner's Manual Owner's Manual Warranty Card Card Screw Polyethylene Bag Polyethylene Bag Carton Contain Box Protector GM-X642/X1R/EW HRD0136 Not used HRY1157 Not used BYC40P180FZK HEG0011 HEG0009 HHG0242 HHL0242 HHP0078 Part No. GM-X542/X1R/UC HRD0135 Not used Not used ARY1048 BYC40P180FZK HEG0011 HEG0009 HHG0241 HHL0241 HHP0078 GM-X542/X1R/ES HRD0137 HRD0143 Not used Not used BYC40P180FZK HEG0011 HEG0009 HHG0243 HHL0243 HHP0078
8 ····· 9 Cover
HNS0101
HNS0101
HNS0101
3
GM-X642,X542
2.2 EXTERIOR
4
GM-X642,X542
(1) EXTERIOR SECTION PARTS LIST
Mark No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Description Screw Screw Screw Panel Case Heat Sink Plate Plate Cover Amp Unit Terminal(CN902) Pin Jack(CN851) Pin Jack(CN852) Terminal(CN901) Terminal(CN601) Part No. BBZ30P060FMC BBZ30P080FMC BSZ30P050FZK
See Contrast table(2) See Contrast table(2) See Contrast table(2)
Mark No. 16 17 18 19 20 21 22 23 24
Description Clip Heat Sink Screw Light Pipe Unit Screw Fuse Holder Fuse(FU902)(25A) Thermistor(TH902) Screw(M2.6x6)
Part No. HNC0054 HNR0151 PPZ30P100SAD HXA0322 PPZ30P100FZK HKE0012 HEK0025 CCX1013 HBA0012
HNS0077 HNS0081 HNS0101
See Contrast table(2)
CKF1059 HKB0001 HKB0001 HKE0036 HKE0035
(2) CONTRAST TABLE GM-X642/X1R/EW and GM-X542/X1R/UC, ES are constructed the same except for the following:
Mark No. 4 5 6 10 Description Panel Case Heat Sink Amp Unit GM-X642/X1R/EW HNB0111 HNB0116 HNR0150 HWH0130 Part No. GM-X542/X1R/UC HNB0112 HNB0114 HNR0156 HWH0129 GM-X542/X1R/ES HNB0112 HNB0114 HNR0156 HWH0131
5
1
2
3
4
GM-X642,X542
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
A
Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
A-a
A-a
A-b
Large size SCH diagram
A-a
A-b
Guide page
A-a
A-b
Detailed page
ISOLATOR CIRCUIT GAIN=1
OFF/LPF/HPF
B
HP/LP FILTER 80Hz 12dB/OCTAVE
C
POWER SUPPLY
D
6
A
1 2
3
4
5
6
7
8
GM-X642,X542
A
A-b
NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
A AMP UNIT
B
BASS BOOST 60Hz 0-18dB/OCTAVE
AMP GAIN=7-31dB
C
BFC
/EW, ES
FU902
HEK0025
>
D
The > mark 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.
A
5 6 7 8
7
B A
D C
8
A-a A-b
GM-X642,X542
A-a
NOTE : Symbol ind No differen discrete res Symbol ind No differen discrete ca
1 ISOLATOR CIRCUIT GAIN=1
OFF/LPF/HPF
1
2 HP/LP FILTER 80Hz 12dB/OCTAVE
2
1
3
BASS BOOS 60Hz 0-18dB/OCTA
3
4
4
2
5
6
7
8
GM-X642,X542
3
A-a A-b
A
B
POWER SUPPLY
C
D
A-a
5 6 7 8
9
B A
D C
10
A-a A-b
GM-X642,X542
1
Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
1
A-b
A
AMP UNIT
AMP GAIN=7-31dB
2
2
: Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.
1
3
3
SS BOOST 60Hz dB/OCTAVE
4
4
2
5
FU902 HEK0025
5
3
BFC
/EW, ES
6
> The > mark 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.
6
7 B C
7
GM-X642,X542
A-b
A-a A-b
A
8
8
11
D
1
2
3
4
GM-X642,X542
4. PCB CONNECTION DIAGRAM
A
4.1 AMP UNIT
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. 2. Viewpoint of PCB diagrams
Connector Capacitor
SIDE A
B
P.C.Board Chip Part
SIDE B
A
AMP UNIT
C
2 4 6 1 3 5 7
D
12
A
1 2 3 4
5
6
7
8
GM-X642,X542
SIDE A
A
B
+B
GND
B REMOTE
2 4 6 1 3 5 7
C
R+
R+
R-
R-
L-
L-
L+
L+
D
BFC
A
5 6 7 8
13
1
2
3
4
GM-X642,X542
A
A
AMP UNIT
B
C
D
14
A
1 2 3 4
5
6
7
8
GM-X642,X542
SIDE B
A
B
C
D
A
5 6 7 8
15
GM-X642,X542
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 D D D D D D D D D D D D D D D D D D D D D L L L T TH TH TH S S VR VR VR VR FU 659 660 661 902 903 904 905 906 907 908 909 910 911 912 501 502 503 504 505 506 557 558 601 651 652 653 654 658 659 661 903 907 908 909 910 801 802 901 901 901 902 903 101 901 451 453 501 502 902 Transistor Transistor Transistor Transistor Transistor Transistor FET FET Transistor Transistor Transistor Transistor FET FET Diode Diode Diode Diode Diode Diode Diode Diode LED Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Ferri-Inductor Ferri-Inductor Choke Coil 50mH Transformer Thermistor Thermistor Thermistor Switch (OFF, LPF, HPF) Switch (BFC)(GM-X642/X1R/EW) (BFC)(GM-X542/X1R/ES) Volume 20k(C) Volume 10k(A) Semi-fixed Semi-fixed Fuse 25A Part No. ------------------------2SA1048 2SB1243 2SC2458 2SA1048 2SB1277 2SB1277 IRFIZ44N IRFIZ44N 2SD2395 2SB1566 2SD1919 2SD1919 IRFIZ44N IRFIZ44N HZS6L(C1) HZS6L(C1) 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 SML210LT(LMN) ERA15-02VH ERA15-02VH 1SS133 HZS7L(B2) 1SS133 1SS133 1SS133 RM4Z FML22S HZS16L(1) HZS16L(1) FML22R CTF1007 CTF1007 CTH1218 HTT0009 CCX1013 CCX1013 CCX1035 CSH1029 HSH-156 HCS0001 CCS1265 CCP1200 CCP1200 HEK0025
A Unit Number Unit Number
MISCELLANEOUS
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 Q Q 101 102 103 104 451 452 501 651 851 852 853 901 203 204 205 501 502 503 504 505 506 507 508 509 510 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 571 572 653 654 655 657 658 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 FET FET FET FET Transistor Transistor Transistor Transistor Transistor Transistor Transistor
Unit Number : : : Unit Name :
HWH0130(GM-X642/X1R/EW) HWH0129(GM-X542/X1R/UC) HWH0131(GM-X542/X1R/ES) Amp Unit
NJM2068L NJM2068L NJM2068L NJM2068L NJM2068D NJM2068D NJM2068D PA2027A NJM2068D NJM2068D NJM2068L UPC494C DTA124ES 2SC2458 2SC2458 2SA992 2SA992 2SA992 2SA992 2SC1845 2SC1845 2SC1845 2SC1845 2SK389 2SK389 2SC1845 2SC1845 2SC2240 2SC2240 2SC1845 2SC1845 2SA992 2SA992 2SA970 2SA970 2SC2240 2SC2240 2SA970 2SA970 94-4980 94-4981 94-4981 94-4980 2SD1768S 2SD1768S 2SA1048 2SC2458 2SC2458 2SA1048 2SC2458
16
GM-X642,X542
=====Circuit Symbol and No.===Part Name --- -----------------------------------------------
Part No. -------------------------
=====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 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 595 596 597 598 599 600 605 606 657 658 659 660 661 662 663 664 665 666 667 668 669 671 672 676 678 679 680 681 682 683 684 685 686 851 852 853 0.1 0.1
Part No. ------------------------RD1/4PU101J RD1/4PU163J RD1/4PU163J RD1/4PU332J RD1/4PU332J RD1/4PU183J RD1/4PU183J RD1/4PU121J RD1/4PU121J RD1/4PU102J RD1/4PU102J RD1/4PU622J RD1/4PU622J RD1/4PU104J RD1/4PU104J RD1/4PU101J RD1/4PU101J RD1/4PU101J RD1/4PU101J RD1/4PU102J RD1/4PU102J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S101J CCN1082 CCN1082 RS1/2PMF100J RS1/2PMF100J RD1/4PU563J RD1/4PU563J RD1/4PU564J RD1/4PU564J RD1/4PU473J RD1/4PU473J RD1/4PU331J RD1/4PU331J RD1/4PU104J RD1/4PU472J RD1/4PU103J RD1/4PU102J RD1/4PU472J RD1/4PU221J RD1/4PU563J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU222J RD1/4PU221J RD1/4PU152J RD1/4PU222J RD1/4PU472J RD1/4PU101J RS1/10S472J RD1/4PU563J RD1/4PU563J RD1/4PU103J RD1/4PU223J RD1/4PU223J RD1/4PU223J RS1/10S471J RS1/10S471J RS1/10S223J
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 R R R R R R R R R R R R R R R 101 102 103 104 105 106 107 108 109 110 111 112 115 116 121 122 123 124 203 204 451 452 455 456 459 460 461 462 465 466 467 468 469 470 471 472 473 474 501 502 503 504 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S472J RS1/10S472J RS1/10S562J RS1/10S562J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S133J RS1/10S133J RS1/10S133J RS1/10S133J RD1/4PU222J RD1/4PU222J RS1/10S392J RS1/10S392J RS1/10S182J RS1/10S182J RS1/10S333J RS1/10S333J RS1/10S221J RS1/10S221J RS1/10S101J RS1/10S101J RS1/10S222J RS1/10S222J RS1/10S473J RS1/10S473J RS1/10S910J RS1/10S910J RS1/10S333J RS1/10S333J RS1/10S222J RS1/10S222J RS1/10S153J RS1/10S153J RD1/4PU301J RD1/4PU301J RD1/4PU183J RD1/4PU183J RD1/4PU221J RD1/4PU221J RD1/4PU153J RD1/4PU153J RD1/4PU221J RD1/4PU221J RD1/4PU471J RD1/4PU471J RD1/4PU181J RD1/4PU181J RD1/4PU181J RD1/4PU181J RD1/4PU680J RD1/4PU680J RD1/4PU680J RD1/4PU680J RD1/4PU332J RD1/4PU332J RD1/4PU101J
17
GM-X642,X542
=====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 854 855 856 857 858 859 860 861 862 865 866 867 868 869 870 871 872 873 874 901 902 907 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 928 929 932 935 936 937 938 939 947 948 949 950 951 999
Part No. ------------------------RS1/10S223J RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RS1/10S821J RS1/10S821J RS1/10S223J RS1/10S223J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S222J RS1/10S333J RS1/10S333J RD1/4PU0R0J RS1/2PMF220J RS1/10S473J RS1/2PMF220J RS1/10S153J RS1/10S102J RD1/4PU272J RS1/10S472J RS1/10S472J RS1/10S472J RD1/4PU332J RD1/4PU332J RS1/2PMF220J RS1/2PMF220J RD1/4PU472J RD1/4PU472J RD1/4PU472J RD1/4PU472J RS1/2PMF121J RS1/2PMF121J RS1/2PMF121J RS1/2PMF121J RD1/4PU104J RS1/10S202J RS1/10S223J RS1/10S103J RD1/4PU272J RD1/4PU272J RS1/2PMF100J RS1/2PMF100J RD1/4PU153J
=====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 C C C C C C C C C C C C C C C 455 456 457 458 459 460 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 651 652 653 654 655 657 658 659 661 662 663 664 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 470µF/16V 100µF/16V 100µF/16V
Part No. ------------------------CFTLA224J50 CFTLA224J50 CFTLA473J50 CFTLA473J50 CEAS470M16 CEAS470M16 CMA220J2H CMA220J2H CQMA152J50 CQMA152J50 CQMA103J50 CQMA103J50 CFTLA393J50 CFTLA393J50 CMA030D2H CMA030D2H CMA030D2H CMA030D2H CMA180J2H CMA180J2H CEAS100M16 CEAS100M16 CMA680J2H CMA680J2H CMA680J2H CMA680J2H CFTLA333J50 CFTLA333J50 CEJANP100M16 CEJANP100M16 HCH0002 HCH0002 CEAS470M16 CEAS470M16 CQMA102J50 CQMA102J50 CCSQCH470J50 CCSQCH470J50 CCH1036 CFTLA103J50 CEAS100M16 CEAS100M16 CFTLA103J50 CEAS470M16 CEAS220M16 CCH1183 CFTLA103J50 CFTLA103J50 CFTLA334J50 CKSQYB223K50 CKSQYB471K50 CKSQYB471K50 CEAS100M16 CEAS100M16 CFTLA104J50 CFTLA104J50 CCSQCH271J50 CCSQCH271J50 CCSQCH271J50 CCSQCH271J50 CKSQYB471K50 CKSQYB471K50 CEAS4R7M35 CEAS4R7M35 CCSQCH470J50
220µF/10V
RS1/10S101J RD1/4PU563J (GM-X642/X1R/EW, GM-X542/X1R/ES) RD1/4PU105J
CAPACITORS
C C C C C C C C C C 101 102 103 104 105 106 451 452 453 454 CCSQCH470J50 CCSQCH470J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CFTLA154J50 CKSQYB273K25 CKSQYB273K25 CEAS4R7M35 CEAS4R7M35
18
GM-X642,X542
=====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 866 867 868 869 870 871 901 902 903 904 905 906 907 908 909 912 913 914 915 916 3300µF/16V
Part No. ------------------------CEAS100M16 CEAS100M16 CCSSL101J50 CCSSL101J50 CKSQYB122K50 CKSQYB122K50 CCH1211 CEAS221M10 CEAS2R2M50 CEAS101M16 CQMA472J50 CQMA472J50 CCH1211 HCH0001 HCH0001 CEASR10M50 CEASR10M50 CQMA102J50 CQMA102J50 CFTLA334J50
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C 917 918 919 920 921 922 923 924 927 932 937 938
Part No. ------------------------CFTLA334J50 CKSQYB102K50 CKSQYB102K50 CFTLA564J50 CEAS101M16 CEAS101M16 CKSQYB102K50 CKSQYB102K50 CQMA102J50 CEAS470M10 CKSQYB473K50 CKSQYB473K50
3300µF/16V 4700µF/35V 4700µF/35V
6. ADJUSTMENT
There is no information to be shown in this chapter.
19
GM-X642,X542
7. GENERAL INFORMATION
7.1 DISASSEMBLY
- Removing the Case and the Plate (Fig.1) Remove the four screws. Remove the screw. Remove the three screws. Remove the two screws and then remove the Case. Remove the screw and then remove the Plate. Case
Plate
Fig.1
- Removing the Amp Unit (Fig.2) Remove the four screws. Remove the two screws and then remove the Panel. Remove the twelve screws. Remove the six screws and then remove the Amp Unit.
Panel
Amp Unit Fig.2
20
GM-X642,X542
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
21
GM-X642,X542
22
Gain Control
The power indicator lights when the power is switched on.
Power Indicator
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.
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.
· 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. · If you hear too much noise when using the speaker input terminals, turn the gain control counter-clockwise.
Bass Boost Level Control
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)
Bass Boost Level Control can boost the level around 60 Hz from 0 to 18 dB.
· Bass Boost Level Control can be adjusted only when the LPF/HPF select switch is set to a position other than HPF.
Audio frequency range to be output
Very Low Frequency range Full range Low Frequency range to High Frequency range
Speaker Type
Subwoofer Full range Full range
Remarks
Connect a subwoofer. Use if you want to cut the very low frequency range because it is not necessary for the speakers you are using.
GM-X642,X542
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
Amplifier with RCA input jacks
Connecting wires with RCA pin plugs (sold separately).
Car stereo with RCA output jacks
External Output
Front side
RCA output jack
RCA input jack
Back side Fuse (25 A) 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-X642,X542
8.2 SPECIFICATIONS
- GM-X642/X1R/EW
Power source .......................................................................................................... 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system .......................................................................................................................................... Negative type Current consumption .................................................................................................... 15.5 A (at continuous power, 4 ) Average current drawn* ........................................................................................................ 5.6 A (4 for two channels) 8.8 A (4 for one channel) Fuse .............................................................................................................................................................................. 25 A Dimensions ...................................................................................................................... 270 (W) × 60 (H) × 165 (D) mm Weight .................................................................................................................... 2.7 kg (Leads for wiring not included) Maximum power output .................................................................................................................. 100 W × 2 / 300 W × 1 Continuous power output ........................................................................ 75 W × 2 / 195 W × 1 (DIN45324, +B=14.4 V) Load impedance .......................................................................................................................... 4 (1 -- 8 allowable) (Bridge connection: 2 -- 8 allowable) 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: 80 Hz Cut off slope: 12 dB/oct High pass filter .......................................................................................................................... Cut off frequency: 80 Hz Cut off slope: 12 dB/oct Bass boost ................................................................................................................................................ Frequency: 60 Hz Gain: 0 -- 18 dB Maximum input level/impedance .................................................................................. RCA: 6.5 V/22 k (0.4 -- 6.5 V) Speaker: 26 V/40 k (1.6 -- 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
24
GM-X642,X542
- GM-X542/X1R/UC
Power source .............................................................................................................. 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 15.5 A (at continuous power, 4 ) Average current drawn* ............................................................................................................ 5.6 A (4 for two channels) 8.8 A (4 for one channel) Fuse .................................................................................................................................................................................. 25 A Dimensions .......................................................................................................................... 270 (W) × 60 (H) × 165 (D) mm [10-5/8 (W) × 2-3/8 (H) × 6-1/2 (D) in] Weight .......................................................................................................... 2.7 kg (5.9 lbs) (Leads for wiring not included) Maximum power output .................................................................................................................... 100 W × 2 / 300 W × 1 Continuous power output ............................................................ 50 W × 2 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.08% THD) 150 W × 1 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.8% THD) 75 W × 2 (at 14.4 V, 2 , 20 -- 20,000 Hz, 0.8% THD) Load impedance .............................................................................................................................. 4 (1 -- 8 allowable) (Bridge connection: 2 -- 8 allowable) Frequency response ............................................................................................................ 10 -- 50,000 Hz (+0 dB, 1 dB) Signal-to-noise ratio ...................................................................................................................... 105 dB (IHFA network) Distortion ............................................................................................................................................ 0.005% (10 W, 1 kHz) Separation ........................................................................................................................................................ 65 dB (1 kHz) Low pass filter ................................................................................................................................ Cut off frequency: 80 Hz Cut off slope: 12 dB/oct High pass filter ................................................................................................................................ Cut off frequency: 80 Hz Cut off slope: 12 dB/oct Bass boost .................................................................................................................................................. Frequency: 60 Hz Gain: 0 -- 18 dB Maximum input level/impedance .................................................................................... RCA: 6.5 V/22 k (0.4 -- 6.5 V) Speaker: 26 V/40 k (1.6 -- 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.
25
GM-X642,X542
- GM-X542/X1R/ES
Power source .............................................................................................................. 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 15.5 A (at continuous power, 4 ) Average current drawn* ............................................................................................................ 5.6 A (4 for two channels) 8.8 A (4 for one channel) Fuse .................................................................................................................................................................................. 25 A Dimensions .......................................................................................................................... 270 (W) × 60 (H) × 165 (D) mm Weight ........................................................................................................................ 2.7 kg (Leads for wiring not included) Maximum power output .................................................................................................................... 100 W × 2 / 300 W × 1 Continuous power output ............................................................ 50 W × 2 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.08% THD) 150 W × 1 (at 14.4 V, 4 , 20 -- 20,000 Hz, 0.8% THD) 75 W × 2 (at 14.4 V, 2 , 20 -- 20,000 Hz, 0.8% THD) Load impedance .............................................................................................................................. 4 (1 -- 8 allowable) (Bridge connection: 2 -- 8 allowable) 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: 80 Hz Cut off slope: 12 dB/oct High pass filter ................................................................................................................................ Cut off frequency: 80 Hz Cut off slope: 12 dB/oct Bass boost .................................................................................................................................................. Frequency: 60 Hz Gain: 0 -- 18 dB Maximum input level/impedance .................................................................................. RCA: 6.5 V/22 k (0.4 V -- 6.5 V) Speaker: 26 V/40 k (1.6 V -- 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 when an audio signal is input. Use this value when working out total current drawn by multiple power amplifiers.