crt2187 bridgeable power amplifier...

ORDER NO.

CRT2187

ServiceManual

BRIDGEABLE POWER AMPLIFIER

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, Wheelock Place, Singapore 238880

C PIONEER ELECTRONIC CORPORATION 1998 K-ZEB. FEB. 1998 Printed in Japan

GM-X822 X1R/UC

CONTENTS

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

2. EXPLODED VIEWS AND PARTS LIST .......................3

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

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

5. ELECTRICAL PARTS LIST ........................................15

6. ADJUSTMENT..........................................................19

7. GENERAL INFORMATION .......................................20

7.1 IC .........................................................................20

7.2 DISASSEMBLY ...................................................21

7.3 BLOCK DIAGRAM ..............................................22

8. OPERATIONS AND SPECIFICATIONS.....................23

GM-X722 X1R/UC,ES,EW

2

GM-X822,X722

1. SAFETY INFORMATION

UC model

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 repaircomplex 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 soand 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 toxi-cant which may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skincontact with the solder. Also, when soldering do not inhale any smoke or fumes produced.

3

GM-X822,X722

2 43

1

10

7

9

8

5

6

8

11

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

Fig. 1

4

GM-X822,X722

- PACKING SECTION PARTS LIST

Part No.GM-X822 GM-X722

Mark No. Description X1R/UC X1R/UC X1R/ES X1R/EW* 1 Screw Assy HEA0044 HEA0044 HEA0044 HEA0044

2 Screw(x4) BYC40P180FZK BYC40P180FZK BYC40P180FZK BYC40P180FZK3 Polyethylene Bag HEG0011 HEG0011 HEG0011 HEG00114 Wrench HLP0001 HLP0001 HLP0001 HLP00015 Polyethylene Bag HEG0013 HEG0013 HEG0013 HEG0013

6 Carton HHG0164 HHG0165 HHG0166 HHG01677 Contain Box HHL0164 HHL0165 HHL0166 HHL01678 Protector(x2) HHP0025 HHP0025 HHP0025 HHP0025

9-1 Owner’s Manual HRD0060 HRD0061 HRD0062 HRD00639-2 Owner’s Manual Not used Not used HRD0069 Not used

10 Warranty Card *HRY1070 Not used Not used HRY108711 Card Not used ARY1048 Not used Not used

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.

- Owner's Manual

Model Part No. Language

GM-X822/X1R/UC HRD0060 English, French

GM-X722/X1R/UC HRD0061 English, French

GM-X722/X1R/ES HRD0062 English, Spanish

HRD0069 Arabic, Portuguese(B)

GM-X722/X1R/EW HRD0063 English, French, German, Dutch, Spanish, Italian

5

GM-X822,X722

2.2 EXTERIOR

Fig. 2

6

GM-X822,X722

1 Screw BMZ30P250FZK2 Screw(M3x12) CBA13233 Screw(M3x14) CBA13824 Sheet CNM58545 Screw HBA0006

6 Screw HBA00117 Screw HBA00128 Washer HBF00059 Case HNB0037

10 Heat Sink HNR0078

11 Window HNS005312 Lighting Conductor HNV001313 Amp Unit See Contrast table(2)14 Screw BMS30P060FZK15 Screw BMS30P080FMC

16 Clamper CEF100917 Terminal(CN904) CKF105918 Plug(CN551) CKS103719 Plug(CN501) CKS103920 Connector(CN503) CKS3799

21 Connector(CN552) CKS380022 Cord(CN153) HDE550023 Cord(CN253) HDE550024 Cord(CN502) HDE550125 Cord(CN553) HDE5502

26 Holder HNC002927 Buss Bar HNC004328 Buss Bar HNC004529 Buss Bar HNC005130 Buss Bar HNC0053

31 Clip HNC005432 Separator HNM004733 Spacer See Contrast table(2)34 Heat Sink HNR008135 Heat Sink HNR0082

36 Clamper HNV001537 Spacer HNV397538 Screw BMZ30P250FZK39 Fan Motor CXM110240 Fuse(20A) HEK0020

41 Pin Jack(CN801) HKB000242 Pin Jack(CN851) HKB000243 Terminal(CN101) HKE001044 Fuse Holder(CN902) HKE001245 Terminal(CN901) HKE0014

46 Holder HNC002747 Holder HNC002848 Spacer HNV001049 Screw PPZ30P060FZK50 Film See Contrast table(2)

51 Film See Contrast table(2)52 Plate Unit See Contrast table(2)53 Light Pipe Unit HXA020154 Plate Unit See Contrast table(2)55 Sheet Unit See Contrast table(2)

56 Panel Unit See Contrast table(2)57 Plate HNS006658 Panel Unit See Contrast table(2)59 Screw SMZ30H080FCR60 LED(D902,903) See Contrast table(2))

61 Transistor(Q113,114,213,214) 2SC509962 Transistor(Q115,116,215,216) 2SA190763 Thermistor(TH651,652) CCX101364 FET(Q963-966) IRFIZ44N65 Transistor(Q107,207) 2SC1568

66 Diode(D961) FML22S67 Diode(D962) FML22R68 Thermistor(TH901) CCX102769 Screw BSZ30P050FZK

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

7

GM-X822,X722

(2) CONTRAST TABLEGM-X822/X1R/UC, GM-X722/X1R/UC, GM-X722/X1R/ES and GM-X722/X1R/EW are constructed the same except for thefollowing:


Mark No. Symbol and Description X1R/UC X1R/UC X1R/ES X1R/EW13 Amp Unit HWH0075 HWH0076 HWH0074 HWH007333 Spacer HNM0053(x2) HNM0053(x2) HNM0053(x1) HNM0053(x2)50 Film CNM5856 Not used Not used Not used51 Film CNM5855 Not used Not used Not used52 Plate Unit HXA0115 HXA0111 HXA0111 HXA0111

54 Plate Unit HXA0206 HXA0203 HXA0203 HXA020355 Sheet Unit HXA0266 HXA0126 HXA0118 HXA011856 Panel Unit HXA0270 HXA0271 HXA0271 HXA027158 Panel Unit HXA0273 HXA0272 HXA0272 HXA027260 LED(D902,903) NSPWF50S(AQ) NSPWF50S(VQ) NSPWF50S(VQ) NSPWF50S(VQ)

GM-X822,X722

A

1 2 3 4

B

C

D

1 2 3 4

A

B C

AMP PCB

AUDIO PCBBASS

PCB

AMP UNIT

AMP PCBAUDIO PCBBASS PCB

Consists of

-10dBs -7.6dBs

-10.2dBs

30V

-30V

-35-30V

-35V

15.5V

-15.5V

3. SCHEMATIC DIAGRAM

3.1 AMP UNIT

Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS

LIST".

8 A

9

GM-X822,X7225 6 7 8

A

B

C

D

5 6 7 8

Fig. 3 A

B

-14.3dBs

21.3dBs

14.4V

14.4V

0.2V

14.3V

10.7V0.2V

0V

5.0V

0V

0.3V

3.2V

0.1V

6.3V

3.5V

3.8V

1.9V

0.2V

2.6V

5.0V

5.0V

2.4V

2.4V

10

GM-X822,X722

A

1 2 3 4

B

C

D

1 2 3 4

3.2 AUDIO PCB AND BASS PCB

BC

AU

DIO

PC

BB

AS

S P

CB

AA

CN

551

CN

501

Fig. 4

B C

11

GM-X822,X722

GM-X822,X722

A

1 2 3 4

B

C

D

1 2 3 4

12 A

INPUT

PREOUT

CN502

FAN MO

4. PCB CONNECTION DIAGRAM

4.1 AMP UNIT

CapacitorConnector

P.C.Board Chip Part

SIDE A

SIDE B

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

A AMP PCB

B

13

GM-X822,X7225 6 7 8

5 6 7 8

A

A

B

C

DCN553

AN MOTOR

Fig. 5

C

14

GM-X822,X722

A

1 2 3 4

B

C

D

1 2 3 4

CN501 CN552

CN551

CN503

Fig. 6

Fig. 7

B C

B AUDIO PCB

C BASS PCB

B

A

A

C

15

GM-X822,X722

AMP UNITConsists ofAMP PCBAUDIO PCBBASS PCB

Unit Number : HWH0075 (GM-X822/X1R/UC): HWH0076 (GM-X722/X1R/UC): HWH0074 (GM-X722/X1R/ES): HWH0073 (GM-X722/X1R/EW)

Unit Name : Amp Unit

MISCELLANEOUS

IC 501 IC NJM2068SIC 502 IC NJM2068SIC 503 IC NJM2068SIC 504 IC NJM2068SIC 551 IC NJM2068S

IC 552 IC NJM2068SIC 651 IC PA2027AIC 801 IC NJM2068SIC 851 IC NJM2068SIC 852 IC NJM2068S

IC 951 IC UPC494CQ 101 Transistor 2SK389Q 102 Transistor 2SA992Q 103 Transistor 2SA992Q 104 Transistor 2SC1845

Q 105 Transistor 2SA992Q 106 Transistor 2SC1845Q 107 Transistor 2SC1568Q 111 Transistor 2SC3421Q 112 Transistor 2SA1358

Q 113 Transistor 2SC5099Q 114 Transistor 2SC5099Q 115 Transistor 2SA1907Q 116 Transistor 2SA1907Q 201 Transistor 2SK389

Q 202 Transistor 2SA992Q 203 Transistor 2SA992Q 204 Transistor 2SC1845Q 205 Transistor 2SA992Q 206 Transistor 2SC1845

Q 207 Transistor 2SC1568Q 211 Transistor 2SC3421Q 212 Transistor 2SA1358Q 213 Transistor 2SC5099Q 214 Transistor 2SC5099

Q 215 Transistor 2SA1907Q 216 Transistor 2SA1907Q 601 Transistor 2SD1768SQ 602 Transistor 2SD1768SQ 611 Transistor 2SC2458

Q 612 Transistor 2SC2458Q 613 Transistor DTA124ESQ 651 Transistor 2SA1048Q 652 Transistor 2SC2458Q 653 Transistor 2SC2458

Q 654 Transistor 2SC2458Q 655 Transistor 2SA1048Q 656 Transistor 2SC2458Q 657 Transistor 2SA1048Q 658 Transistor 2SB1243

Q 951 Transistor 2SA1048Q 952 Transistor 2SC2458Q 953 Transistor 2SC2458Q 954 Transistor 2SA1048Q 955 Transistor 2SA1048

Q 956 Transistor DTA124ESQ 957 Transistor 2SC2458Q 958 Transistor 2SD1864Q 959 Transistor 2SD1919Q 960 Transistor 2SD1919

Q 961 Transistor 2SB1277Q 962 Transistor 2SB1277Q 963 FET IRFIZ44NQ 964 FET IRFIZ44NQ 965 FET IRFIZ44N

Q 966 FET IRFIZ44NQ 969 Transistor 2SB1566Q 970 Transistor 2SD2395D 101 Diode HZS6L(B1)D 102 Diode 1SS133

D 103 Diode 1SS133D 201 Diode HZS6L(B1)D 202 Diode 1SS133D 203 Diode 1SS133D 601 Diode 1SS133

D 602 Diode 1SS133D 651 Diode 1SS133D 652 Diode HZS7L(B2)D 654 Diode 1SS133D 658 Diode 1SS133

D 659 Diode 1SS133D 901 Diode RM4Z-LFK5D 902 LED See Conttast table(2)D 903 LED See Conttast table(2)D 954 Diode HZS12L(A3)

D 955 Diode 1SS133D 956 Diode 1SS133D 957 Diode HZS16L(1)D 958 Diode HZS16L(1)D 959 Diode ERA92-02VH

D 960 Diode ERA92-02VHD 961 Diode FML22SD 962 Diode FML22RD 963 Diode 1SS133L 851 Ferri-Inductor CTF1007

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.--- ------ --------------------------------------------- -------------------------


A B C

L 852 Ferri-Inductor CTF1007L 901 Choke Coil 50mH CTH1144L 951 Choke Coil 200mH CTH1211L 952 Choke Coil 200mH CTH1211T 951 Transformer CTT1081

TH 651 Thermistor CCX1013TH 652 Thermistor CCX1013TH 653 Thermistor CCX1035TH 901 Thermistor CCX1027S 501 Switch CSH1029

VR 101 Semi-fixed 1.5kΩ(B) CCP1314VR 201 Semi-fixed 1.5kΩ(B) CCP1314VR 501 Variable Resistor 20kΩ(E) CCS1266VR 503 Variable Resistor 10kΩ(A) CCS1265VR 551 Variable Resistor 10kΩ(C) CCS1268

VR 552 Variable Resistor 50kΩ(C) See Conttast table(2)VR 951 Semi-fixed 100kΩ(B) CCP1325EF 951 Capacitor CCG-081EF 952 Capacitor CCG-081

RESISTORS

R 101 RD1/4PU223JR 102 RD1/4PU101JR 103 RD1/4PU471JR 106 RD1/4PU472JR 107 RD1/4PU222J



R 122 RD1/4PU470JR 123 RD1/4PU221JR 124 RD1/2PM100JR 125 RD1/2PM100JR 126 RD1/2PM100J

R 127 RD1/2PM100JR 128 0.22Ω CCN1071R 129 0.22Ω CCN1071R 134 RD1/2PM100JR 201 RD1/4PU223J




R 223 RD1/4PU221JR 224 RD1/2PM100JR 225 RD1/2PM100JR 226 RD1/2PM100JR 227 RD1/2PM100J

R 228 0.22Ω CCN1071R 229 0.22Ω CCN1071R 234 RD1/2PM100JR 501 RD1/4PU103JR 502 RD1/4PU103J





R 551 RD1/4PU331JR 552 RD1/4PU331JR 553 See Conttast table(2)R 554 See Conttast table(2)R 555 RD1/4PU182J

R 556 RD1/4PU182JR 557 RD1/4PU221JR 558 RD1/4PU221JR 565 See Conttast table(2)R 566 See Conttast table(2)







16

GM-X822,X722



17

GM-X822,X722





R 856 RD1/4PU222JR 857 RD1/4PU392JR 858 RD1/4PU392JR 859 RN1/4PC1002DR 860 RN1/4PC1002D

R 861 RN1/4PC1002DR 862 RN1/4PC1002DR 863 RN1/4PC7501DR 864 RN1/4PC7501DR 865 RN1/4PC7501D

R 866 RN1/4PC7501DR 902 RD1/4PU391JR 951 RD1/4PU103JR 952 RD1/4PU223JR 953 RD1/4PU392J






R 984 RD1/4PU470JR 985 RD1/4PU470JR 988 RS1/2PMF220JR 989 RS1/2PMF220JR 992 RD1/4PU472J

R 993 RD1/4PU472JR 994 RD1/4PU681JR 995 RD1/4PU681JR 996 RS1/2PMF220JR 997 RD1/4PU681J

R 998 RD1/4PU681J

CAPACITORS

C 101 CEAS100M16C 102 CQPA221G2AC 103 CQPA102G2AC 104 CFTLA104J50C 105 CEAS101M16

C 106 CMA150J2HC 107 CFTLA104J50C 108 CMA330J2HC 109 CFTLA104J50C 111 CMA101J2H

C 112 CMA101J2HC 113 CFTLA333J50C 114 CQPA102G2AC 115 CQPA471G2AC 201 CEAS100M16

C 202 CQPA221G2AC 203 CQPA102G2AC 204 CFTLA104J50C 205 CEAS101M16C 206 CMA150J2H

C 207 CFTLA104J50C 208 CMA330J2HC 209 CFTLA104J50C 211 CMA101J2HC 212 CMA101J2H

C 213 CFTLA333J50C 214 CQPA102G2AC 215 CQPA471G2AC 501 CCPUSL470J50C 502 CCPUSL470J50

C 503 CFTLA104J50C 504 CFTLA104J50C 505 CFTLA104J50C 506 CFTLA104J50C 551 CFTLA333J50

C 552 CFTLA333J50C 553 CEAS4R7M50C 554 CEAS4R7M50C 555 CFTLA334J50C 556 CFTLA334J50

C 557 CEAS220M50C 651 220µF/10V CCH1036C 652 CFTLA103J50C 653 CFTLA103J50C 654 CEAS100M16

C 655 CEAS100M16C 656 CEAS101M16C 657 CFTLA103J50C 659 CEAS220M50C 660 470µF/16V CCH1183

C 661 CFTLA103J50C 662 CFTLA103J50C 801 CQMA471J50C 802 CQMA471J50C 803 CEAS100M16

C 804 CEAS100M16C 805 CCPUSL470J50C 851 CQMA471J50C 852 CQMA471J50C 853 CEAS100M16

C 854 CEAS100M16C 855 CFTLA103J50C 856 CFTLA103J50C 857 CCPUSL470J50C 858 CCPUSL470J50



C 859 CCPUSL470J50C 860 CCPUSL470J50C 901 CFTLA104J50C 902 CFTLA224J50C 903 CFTLA104J50

C 951 CEAS100M16C 952 CEAS221M10C 953 CQMAQ102J50C 954 CFTLA105J50C 955 CEAS101M16

C 956 CFTLA564J50C 957 CFTLA564J50C 959 CFTLA104J50C 961 CFTLA273J50C 962 CFTLA273J50

C 963 4700µF/16V CCH1310C 964 CEAS332M35C 965 CEAS332M35C 966 CEAS332M35C 967 CEAS332M35

C 970 CEAS470M16C 971 CEAS470M16C 972 CEAS101M16C 973 CEAS101M16C 974 CEAS331M50

C 975 CEAS331M50C 976 CQMAQ102J50C 977 4700µF/16V CCH1310

18

GM-X822,X722



(2) CONTRAST TABLEGM-X822/X1R/UC, GM-X722/X1R/UC, GM-X722/X1R/ES and GM-X722/X1R/EW are constructed the same except for thefollowing:


Symbol and Description X1R/UC X1R/UC X1R/ES X1R/EWD902,903 LED NSPWF50S(AQ) NSPWF50S(VQ) NSPWF50S(VQ) NSPWF50S(VQ)S551 Switch Not used Not used CSH1021 CSH1021S951 Switch Not used Not used HSH-156 HSH-156VR552 Variable Resistor 50kΩ(C) CCS1263 Not used CCS1263 CCS1263R553,554 RD1/4PU822J Not used RD1/4PU822J RD1/4PU822J

R563,564 Not used RD1/4PU333J Not used Not usedR565,566 RD1/4PU222J RD1/4PU222J Not used Not usedR567,568 Not used Not used RD1/4PU222J RD1/4PU222JR955 Not used Not used RD1/4PU105J RD1/4PU105J

GM-X822,X722

19

6. ADJUSTMENT

No. Item Conditions Adjustment point Specifications1 Idling current Input ; adjust 30 seconds after 1kΩ terminate VR101(Lch) mV Meter(1) : 12mV±3mV

(adjustment) power is switched on, and within 20 seconds. VR201(Rch)2 DC-DC converter Input ; adjust 30 seconds after 1kΩ terminate VR951 mV Meter(2) : 30V±3V

voltage power is switched on, and within 20 seconds.(adjustment)

- Connection Diagram

L

1kΩ

R228

SY

ST

EM

CO

NT

RO

L

GN

D

PO

WE

R

VR951

VR201 VR101

mV Meter(1)

DC RegulatedPower Supply

mV Meter(1)

ECQ213

GND

1kΩ

R

mV Meter(2)

AMP UNIT

4Ω(2W)

+14.4V

4Ω(2W)

SPEAKEROUTPUT

R128

Fig. 8

7. GENERAL INFORMATION

7.1 IC

20

GM-X822,X722

1

2

3

4

5

6

7

8 9

10

11

12

13

14

15

16VCC

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 voltagedetector

Bandgap

Circuit motion:on

+-5.6V

+-

QSR

Oneshot(1µsec)

Bandgap:on

Switch:on

0.13V

PA2027A

21

GM-X822,X722

- Removing the Case and Panel Units

1. Remove eight screws A and then

remove Case.

2. Remove two screws B and seven screws

E and then remove Panel Units.

- Removing the Amp Unit

1. Remove eleven screws C.

2. Remove four screws D.

3. Remove Amp Unit.

Fig. 9

Fig. 10

7.2 DISASSEMBLY

22

GM-X822,X722

7.3 BLOCK DIAGRAM

Fig. 11

CA B

23

GM-X822,X722

- CONNECTION DIAGRAM

(1) GM-X822/X1R/UC

8. OPERATIONS AND SPECIFICATIONS

Connection Diagram

Fuse (30 A)

Grommet

RCA input

Special red battery wire [RD-223] (sold separately).After making all other connections at the amplifier,connect the battery wire terminal of the amplifier tothe positive (+) terminal of the battery.

Ground wire (black) [RD-223] (sold separately).Connect to metal body or chassis.

Amplifier withRCA input jacks

Fuse (20 A) × 2

Car stereo withRCA output jacks

External Output

Connecting wires with RCA pinplugs (sold separately).

RCA input jackRCA output jack

Speaker output terminalSee the “Connecting theSpeaker wires” sectionfor speaker connectioninstructions.

Blue [RD-223] (sold separately).Connect the male terminal of this wire to the blue wire ofthe car stereo (SYSTEM REMOTE CONTROL). Thefemale terminal can be connected to the auto-antenna relaycontrol terminal. If the car stereo does not have a systemremote control terminal, connect the male terminal to thepower terminal through the ignition switch.

Fuse (30 A)

Reverse side

24

GM-X822,X722

Setti

ng th

e U

nit

Gain

Co

ntr

ol

If th

e so

und

leve

l is

too

low

, eve

n w

hen

the

volu

me

of th

e ca

r st

ereo

use

d al

ong

with

this

pow

er a

mpl

ifie

r is

turn

ed u

p,tu

rn g

ain

cont

rol o

n th

e ba

ck o

f th

epo

wer

am

plif

ier

cloc

kwis

e. I

f th

e so

und

dist

orts

whe

n th

e vo

lum

e is

turn

ed u

p,tu

rn th

e ga

in c

ontr

ol c

ount

er-c

lock

wis

e.•

Set t

he g

ain

cont

rol t

o “N

OR

MA

L”

whe

nth

is a

mpl

ifie

r is

con

nect

ed to

a P

ione

er c

arst

ereo

with

RC

Aou

tput

jack

s. I

f th

e so

und

leve

l is

too

low

or

dist

orts

, adj

ust t

he g

ain

cont

rol.

•A

djus

t the

gai

n co

ntro

l to

the

“MIN

” si

deof

“N

OR

MA

L”

whe

n th

is a

mpl

ifie

r is

con

-ne

cted

to a

Pio

neer

car

ste

reo

(Hig

h vo

lt-ag

e ou

tput

type

).

Bass B

oo

st

Level

Co

ntr

ol

Bas

s bo

ost l

evel

con

trol

can

boo

st th

ele

vel a

roun

d th

e fr

eque

ncy

sele

cted

by

the

bass

boo

st f

requ

ency

con

trol

fro

m 0

to 1

2 dB

.

Cu

t O

ff F

req

uen

cy C

on

tro

l

If th

e L

PF (

LPF

/HPF

) se

lect

sw

itch

isse

t to

LPF

(or

HPF

), y

ou c

an s

elec

t a c

utof

f fr

eque

ncy

from

50

to 1

20H

z.

Bass B

oo

st

Fre

qu

en

cy C

on

tro

l

You

can

sel

ect a

bas

s bo

ost f

requ

ency

fro

m40

to 1

20 H

z w

ith th

e ba

ss b

oost

con

trol

.•

Bas

s B

oost

Lev

el C

ontr

ol a

nd B

ass

Boo

stFr

eque

ncy

Con

trol

can

be

adju

sted

onl

y w

hen

the

LPF

/HPF

sel

ect s

witc

h is

set

to a

pos

ition

othe

r th

an H

PF.

Po

wer

Ind

icato

r

The

pow

er in

dica

tor

light

s w

hen

the

pow

er is

sw

itche

d on

.

LP

F (

Lo

w-P

ass F

ilte

r)/H

PF (

Hig

h-P

ass F

ilte

r) S

ele

ct

Sw

itch

Set t

he L

PF/H

PF s

elec

t sw

itch

as f

ollo

ws

acco

rdin

g to

the

type

of

spea

erth

at is

con

nect

ed to

the

spea

ker

outp

ut c

onne

ctor

and

the

car

ster

eo s

ytem

:

LP

F/H

PF

Sele

ct

Aud

io f

requ

ency

ran

geSp

eake

rR

emar

ks

Swit

chto

be

outp

utT

ype

LPF

(lef

t)*

— 5

0 to

120

Hz

Sub-

woo

fer

Con

nect

a s

ub-w

oofe

r.

OFF

(cen

ter)

Full

rang

eFu

ll ra

nge

HPF

(ri

ght)

* 50

to 1

20 H

z —

Full

rang

eU

se if

you

wan

t to

cut t

he

very

-low

-fre

quen

cy r

ange

*be

caus

e it

is n

ot n

eces

sary

fo

r th

e sp

eake

rs y

ou a

re

usin

g.

*Se

e th

e “C

ut O

ff F

requ

ency

Con

trol

” se

ctio

n.

25

GM-X822,X722

Con

nect

ing

the

Uni

t

Co

nn

ecti

ng

th

e P

ow

erT

erm

inal

•A

lway

s us

e th

e sp

ecia

l red

bat

tery

and

gro

und

wir

e [R

D-2

23],

whi

ch is

sol

d se

para

tely

. Con

nect

the

batte

ry w

ire

dire

ctly

to th

e ca

r ba

ttery

pos

itive

te

rmin

al (

+)

and

the

grou

nd w

ire

to th

e ca

r bo

dy.

1.P

ass

the

batt

ery

wir

e fr

om t

heen

gine

com

part

men

t to

the

inte

rior

of t

he v

ehic

le.

•A

fter

mak

ing

all o

ther

con

nect

ions

to th

e am

plif

ier,

conn

ect t

he b

atte

ry w

ire

term

inal

of

the

ampl

ifie

r to

the

posi

tive

(+)

term

inal

of

the

batte

ry.

2.T

wis

t th

e ba

tter

y w

ire,

gro

und

wir

ean

d sy

stem

rem

ote

cont

rol w

ire.

3.A

ttac

h lu

gs t

o w

ire

ends

. Lug

s no

tsu

pplie

d.•

Use

plie

rs, e

tc.,

to c

rim

p lu

gs to

wir

es.

4.C

onne

ct t

he w

ires

to

the

term

inal

.•

Fix

the

wir

es s

ecur

ely

with

the

term

inal

scre

ws.

Fuse

(30

A)

Eng

ine

com

part

-m

ent

Inte

rior

of

the

vehi

cle

Dri

ll a

14-m

mho

le in

to th

eve

hicl

e bo

dy.

Inse

rt th

e O

-rin

g ru

bber

grom

met

into

the

vehi

cle

body

.

Twis

t

Posi

tive

term

inal

GN

D te

rmin

alPo

wer

term

inal

Bat

tery

wir

e

Syst

em r

emot

e co

ntro

l ter

min

al

Syst

em r

emot

e co

ntro

l wir

e(B

lue)

Gro

und

wir

e

Fuse

(30

A)

Bat

tery

wir

e

Gro

und

wir

e

Lug

Lug

Co

nn

ecti

ng

th

e S

peaker

Ou

tpu

t Term

inals

1.E

xpos

e th

e en

d of

the

spe

aker

wir

esby

abo

ut 1

0 m

m a

nd t

wis

t us

ing

nipp

ers

ora

cutt

er.

2.A

ttac

h lu

gs t

o sp

eake

rw

ire

ends

.L

ugs

not

supp

lied.

•U

se p

liers

, etc

., to

cri

mp

lugs

to w

ires

.

3.C

onne

ct t

he s

peak

erw

ires

to

the

spea

ker

outp

ut t

erm

inal

s.•

Fix

the

spea

ker

wir

es s

ecur

ely

with

the

term

i-na

l scr

ews.

10m

m

Twis

t

Spea

ker

outp

utte

rmin

alSp

eake

r w

ire

Term

inal

scr

ew

Spea

ker

wir

e

Lug

26

GM-X822,X722

Co

nn

ecti

ng

th

e S

peaker

wir

es

The

spe

aker

out

put m

ode

can

be tw

o-ch

an-

nel (

ster

eo),

one

-cha

nnel

(m

ono)

, or

thre

e-ch

anne

l (st

ereo

+ m

ono)

. Con

nect

the

spea

ker

lead

s to

sui

t the

mod

e ac

cord

ing

tofi

gure

s on

the

follo

win

g pa

ges.

•W

hen

conn

ectin

g to

the

spea

ker

inpu

t, do

not

conn

ect t

he R

CA

outp

ut.

•W

hen

conn

ectin

g to

the

RC

Ain

put,

do n

otco

nnec

t the

spe

aker

inpu

t.

Tw

o-c

han

nel

mo

de (

ste

reo

)

On

e-c

han

nel

mo

de (

mo

no

)

Th

ree-c

han

nel

mo

de (

ste

reo

+

mo

no

)T

he p

ower

am

plif

ier

is b

asic

ally

a tw

o-ch

anne

l/one

-cha

nnel

bri

dgea

ble

ampl

ifie

r,bu

t thr

ee c

hann

els

can

be a

chie

ved

byco

mbi

ning

the

ster

eo a

nd m

ono

mod

esus

ing

indu

ctor

s an

d ca

paci

tors

.

Thr

ee-c

hann

el m

ode,

tw

o-w

ay s

yste

m

Thr

ee-c

hann

el m

ode,

thr

ee-w

ay s

yste

m

•In

duct

ors

(L1

and

L2

in th

e di

agra

ms)

act a

s lo

w-p

ass

filte

rs. C

apac

itors

(C

1an

d C

2 in

the

diag

ram

s) a

ct a

s hi

gh-p

ass

filte

rs. I

nduc

tors

(L

) ar

e us

ed f

or th

ew

oofe

r/su

b-w

oofe

r, an

d ca

paci

tors

(C

)ar

e us

ed f

or th

e hi

gh/m

id-h

igh.

•R

emem

ber

whe

n br

idgi

ng a

n am

plif

ier

itw

ill s

ee o

nly

half

of

the

orig

inal

spe

aker

impe

danc

e. T

here

fore

, you

mus

t use

spea

kers

that

hav

e ra

tings

of

4 oh

ms

orhi

gher

. If

you

use

spea

kers

that

hav

elo

wer

impe

danc

e ra

tings

it m

ay c

ause

dam

age

to th

e am

plif

ier.

•W

hen

the

indu

ctor

s an

d ca

paci

tors

are

conn

ecte

d to

the

spea

ker

wir

es, s

ecur

e or

sold

er th

em s

o th

ey c

anno

t be

pulle

dlo

ose.

Tap

e or

use

hea

t shr

ink

on th

ejo

ints

to p

reve

nt s

hort

cir

cuits

.

C2

C2

L1

L2 L2

C1C1

C1

L1

(Lef

t)Sp

eake

r(R

ight

)

Spea

ker

(Mon

o)

Mid

-hig

h (L

eft)

Woo

fer

(Mon

o)

Mid

-hig

h (R

ight

)

Hig

h/m

id-h

igh

(Lef

t)

Mid

/mid

-bas

s(L

eft)

Woo

fer/

sub-

woo

fer

(Mon

o)

Mid

/mid

-bas

s(R

ight

)

Hig

h/m

id-h

igh

(Rig

ht)

Co

mp

on

en

t G

uid

e

Spea

ker

load

Im

peda

nce

2 Ω

4 Ω

8 Ω

fc (

Hz)

L(m

H)

C (

µF)

L(m

H)

C (

µF)

L(m

H)

C (

µF)

506.

41,

600

12.7

080

0.0

25.5

040

0.0

804.

01,

000

8.00

500.

016

.00

250.

0

125

2.5

640

5.10

300.

010

.00

160.

0

200

1.6

400

3.20

200.

06.

4010

0.0

320

1.0

250

2.00

125.

04.

0062

.0

500

0.64

160

1.30

80.0

2.60

40.0

800

0.4

100

0.80

50.0

1.60

25.0

1,25

00.

2564

0.50

30.0

1.00

16.0

2,00

00.

1640

0.30

20.0

0.64

10.0

3,20

00.

125

0.20

12.5

0.40

6.2

5,00

00.

0616

0.13

8.0

0.26

4.0

8,00

00.

0410

0.08

5.0

0.16

2.5

10,0

000.

038

0.06

4.0

0.13

2.0

Sett

ing

th

e F

ilte

r C

on

sta

nt

Lo

w-p

ass f

ilte

r (f

or

su

b-

wo

ofe

r/w

oo

fer)

:

6 d

B/o

cta

ve

Hig

h-p

ass f

ilte

r (f

or

mid

/mid

-hig

h):

6 d

B/o

cta

ve

Ban

d-p

ass f

ilte

r (c

om

bin

ati

on

of

low

-pass f

ilte

r an

d h

igh

-pass f

ilte

r

for

mid

-bass/m

id):

6 d

B/o

cta

ve

•A

mul

ti-ch

anne

l sys

tem

can

be

set u

p us

ing

aco

mbi

natio

n of

filt

ers.

The

indu

ctan

ce (

L)

and

capa

cita

nce

(C)

will

det

erm

ine

the

freq

uenc

y (f

c)th

at th

e sp

eake

r w

ill r

epro

duce

. Ref

er to

the

char

tbe

low

to d

eter

min

e th

e co

mpo

nent

s re

quir

ed.

•U

se th

e ca

paci

tors

spe

cifi

ed. N

on-p

olar

ized

capa

cito

rs r

ated

at o

ver

±25

Vsh

ould

be

used

for

C1

and

C2

in th

e di

agra

m. B

ecau

se o

f th

e vo

ltage

outp

ut o

f th

e am

plif

ier,

it is

ver

y im

port

ant t

o us

eno

n-po

lari

zed

capa

cito

rs r

ated

at o

r ov

er 2

5 V

.T

his

will

pre

vent

a s

afet

y ha

zard

.

L2C

20d

B

–6d

B

f CH

2fC

Hf C

Lf C

L 2

0dB

–6d

B

fCf

f C 2

C1

0dB

–6d

B

f C2f

Cf

L1

27

GM-X822,X722

Power source .............................................................................................................. 14.4 V DC (10.8 — 15.1 V allowable)Grounding system ............................................................................................................................................ Negative typeCurrent consumption ........................................................................................................ 22.5 A (at continuous power, 4 Ω)Average current drawn* ............................................................................................................ 6.5 A (4 Ω for two channels)

11.3 A (4 Ω for one channel)Fuse ............................................................................................................................................................................ 20 A × 2Dimensions ........................................................................................................................ 255 (W) × 61 (H) × 260 (D) mm

[10 (W) × 2-3/8 (H) × 10-1/4 (D) in.]Weight ........................................................................................................ 3.4 kg (7.5 lbs.) (Leads for wiring not included)Maximum power output ........................................................................................................ 160 W × 2 / 480 W × 1 (EIAJ)Continuous power output ............................................................ 80 W × 2 (at 14.4V, 4 Ω, 20 — 20,000 Hz, 0.04% THD)

240 W × 1 (at 14.4V, 4 Ω, 20 — 20,000 Hz, 0.4% THD)120 W × 2 (at 14.4V, 2 Ω, 20 — 20,000 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 ...................................................................................................................... 102 dB (IHF–A network)Distortion ............................................................................................................................................ 0.004% (10 W, 1 kHz)Separation ........................................................................................................................................................ 70 dB (1 kHz)Low pass filter .................................................................................................................... Cut off frequency: 50 — 120 Hz

Cut off slope: –12 dB/octHigh pass filter .................................................................................................................. Cut off frequency: 50 — 120 Hz

Cut off slope: –12 dB/octBass boost (GM-X822) .................................................................................................................. Frequency: 40 — 120 Hz

Gain: 0 — 12 dBBass boost (GM-X722) .............................................................................................................................. Frequency: 60 Hz

Gain: 0 — 12 dBInput level / impedance .......................................................................................................................... 0.4 — 6.5 V/22 kΩ

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 currentdrawn by multiple power amplifiers.

SPECIFICATIONS

crt2187 bridgeable power amplifier...

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