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Service Manual
BRIDGEABLE POWER AMPLIFIER

ORDER NO.

CRT2157

GM-X922
GM-X1022

X1R/UC, ES, EW

X1R/UC

CONTENTS
1. 2. 3. 4. 5. SAFETY INFORMATION ............................................2 EXPLODED VIEWS AND PARTS LIST .......................3 SCHEMATIC DIAGRAM .............................................8 PCB CONNECTION DIAGRAM ................................10 ELECTRICAL PARTS LIST ........................................13 6. ADJUSTMENT..........................................................17 7. GENERAL INFORMATION .......................................18 7.1 IC .........................................................................18 7.2 DISASSEMBLY ...................................................19 8. OPERATIONS AND SPECIFICATIONS.....................20

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-ZEU. FEB. 1998 Printed in Japan

GM-X922, GM-X1022

1. SAFETY INFORMATION
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.

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 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 Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other 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 skin contact with the solder. Also, when soldering do not inhale any smoke or fumes produced.

2

GM-X922, GM-X1022

2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
10

3 4

5

2

8 6 9

9

7
Fig. 1

3

GM-X922, GM-X1022

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. (1) PACKING SECTION PARTS LIST
Mark No. Description * 1 2 3 4 5 ····· Screw Assy Screw(x4) Polyethylene Bag Wrench Part No. HEA0044 BYC40P180FZK HEG0011 HLP0001 Mark No. Description 6 7 8 9 10-1 Polyethylene Bag Carton Contain Box(x1/2) Protector(x2) Owner's Manual Part No. HEG0013
See Contrast table (2) See Contrast table (2)

HHP0025
See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)

* *

10-2 Owner's Manual 10-3 Card 10-4 Warranty Card

(2) CONTRAST TABLE
GM-X922/X1R/UC, GM-X922/X1R/ES, GM-X922/X1R/EW and GM-X1022/X1R/UC are constructed the same except for the following: Part No. Mark No. 7 8 10-1 10-2 * 10-3 * 10-4 Symbol and Description Carton Contain Box Owner's Manual Owner's Manual Card Warranty Card X1R/UC HHG0160 HHL0160 HRD0061 Not used ARY1048 Not used GM-X922 X1R/ES HHG0162 HHL0162 HRD0062 HRD0069 Not used Not used X1R/EW HHG0163 HHL0163 HRD0063 Not used Not used HRY1087 GM-X1022 X1R/UC HHG0159 HHL0159 HRD0060 Not used Not used HRY1070

- Owner's Manual
Model GM-X922/X1R/UC GM-X922/X1R/ES GM-X922/X1R/EW GM-X1022/X1R/UC Part No. HRD0061 HRD0062 HRD0069 HRD0063 HRD0060 Language English, French English, Spanish Arabic, Portuguese(B) English, French, German, Dutch, Spanish, Italian English, French

4

GM-X922, GM-X1022

2.2 EXTERIOR

Fig. 2

5

GM-X922, GM-X1022

(1) EXTERIOR SECTION PARTS LIST
Mark No. Description 1 2 3 4 5 6 7-12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Screw Screw Screw Screw Screw Screw ····· Heat Sink Window Lighting Conductor Amp Unit Screw Screw Terminal(CN905) Cord Cord(CN852) Cord(CN201) Buss Bar Buss Bar Buss Bar Buss Bar Buss Bar Buss Bar Buss Bar Buss Bar Part No. BMZ30P250FZK CBA1323 CBA1382 HBA0006 HBA0011 HBA0012 HNR0094 HNS0053 HNV0012
See Contrast table (2)

Mark No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

Description Separator Terminal(CN101) Fuse Holder(CN902) Terminal(CN901) Holder Holder Screw Plate Unit Sheet Unit Light Pipe Unit Plate Unit Panel Unit Panel Plate Panel Unit Panel Screw Washer Thermistor(TH902, 903) FET(Q963 - 968)

Part No. HNM0046 HKE0010 HKE0012 HKE0014 HNC0027 HNC0028 PPZ30P060FZK
See Contrast table (2) See Contrast table (2)

HXA0201
See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)

BMS30P060FZK BMS30P080FMC CKF1059 HDE5500 HDE5501 HDE5502 HNC0043 HNC0044 HNC0046 HNC0047 HNC0048 HNC0049 HNC0050 HNC0052

SMZ30H080FCR HBF0005 CCX1013 IRFIZ44N 2SC1568 2SA1673 2SA1673

66 Transistor(Q162, 262) 67 Transistor (Q168, 169, 268, 269) 68 Transistor (Q165, 166, 265, 266) 69 70 71 72 73 74 75 76 77 78 Thermistor(TH901) Diode(D961) Diode(D962) Spacer LED(D903, 904) Screw Film Film Sheet Plate

Heat Sink(Sub Heat Sink) HNR0079 Heat Sink(Sub Heat Sink) HNR0080 Clamper HNV0015 Spacer HNV3975 Network Unit See Contrast table (2) Plug(CN552) Plug(CN501) Connector(CN502) Connector(CN551) Holder Clip Case Fan Motor Fuse(30A) Pin Jack(CN851, 853) CKS1037 CKS1053 CKS3799 CKS3800 HNC0029 HNC0054 HNB0036 CXM1133 HEK0030 HKB0002

CCX1027 FML22R FML22S HNM0053
See Contrast table (2)

BMZ30P250FZK
See Contrast table (2) See Contrast table (2)

CNM5852
See Contrast table (2)

*

79 Screw

BSZ30P050FZK

6

GM-X922, GM-X1022

(2) CONTRAST TABLE
GM-X922/X1R/UC, GM-X922/X1R/ES, GM-X922/X1R/EW and GM-X1022/X1R/UC are constructed the same except for the following: Part No. GM-X922 X1R/ES X1R/EW HWH0070 HWH0069 HWG0012 HWG0011 HXA0112 HXA0112 HXA0117 HXA0117 HXA0202 HXA0202 HXA0245 HNB0040 HNS0039 Not used HXA0248 HNB0044 NSPBF50S(VQ) Not used Not used HNS0047 Not used HXA0245 HNB0040 HNS0039 Not used HXA0248 HNB0044 NSPBF50S(VQ) Not used Not used HNS0047 Not used

Mark No. 16 35 53 54 56 57 58 59 59 60 61 73 75 76 78 78

Symbol and Description Amp Unit Network Unit Plate Unit Sheet Unit Plate Unit Plate Unit Panel Plate Plate Plate Unit Panel LED(D903, 904) Film Film Plate Plate

X1R/UC HWH0072 HWG0014 HXA0112 HXA0119 HXA0202 HXA0245 HNB0040 HNS0039 Not used HXA0248 HNB0044 NSPBF50S(VQ) Not used Not used HNS0047 Not used

GM-X1022 X1R/UC HWH0071 HWG0013 HXA0205 HXA0262 HXA0265 HXA0250 HNB0065 Not used HNS0064 HXA0246 HNB0042 NSPWF50S(AQ) CNM5853 CNM5856 Not used HNS0066

*

*

7

1

2

3

4

GM-X922, GM-X1022

3. SCHEMATIC DIAGRAM
A

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

A
L

AMP UNIT
BUFFER AMP ISOLATOR

B

FIL UNIT
LPF

GAIN ADJUSTMENT

C

B.B UNIT
Except UC model

BASS BOOST

GM-X922/X1R/UC only

PRE OUT L PRE OUT R

B

GM-X922/X1R/UC only

Except UC model

R

Except GM-X922/X1R/UC

C

±15V REGULATOR

E

PWM CONTROL

D
ERA92-02VH

THE

8

A B C
1

2

3

4

HZS12L(A3)

DC-DC CONVERTER

100K(B)

ERA92-02VH

R001

5

6

7

8

GM-X922, GM-X1022

A
REGULATOR POWER STAGE

OVER VOLTAGE PROTECTOR

470(B)

HZS6L(B1)

1M

B
HZS6L(B1)

470(B)

1M

DC DETECT PROTECTOR / RELAY DRIVER

Except UC model

C

NTROL POWER CONTROL / MUTE

HZS7L(B2)

B. REMOTE

B. REMOTE SENSE

M
FAN MOTOR CXM1133 HZS12L(A3)

390

SWITCHES : FIL UNIT S501 : LPF SWITCH............................ON ­ OFF B.B UNIT S551 : BASS / BOOST SWITCH.........ON ­ OFF

M
FAN MOTOR CXM1133

AMP UNIT S901 : BFC SWITCH.......................HIGH ­ LOW The underlined indicates the switch position.

NETWORK UNIT Consists of FIL UNIT B.B UNIT

HEK0030

HEK0030

D

SIGNAL ROUTE
: AUDIO SIGNAL

THERMO-DETECTOR

D903, 904 GM-X922 : NSPBF50S(VQ) GM-X1022 : NSPWF50S(AQ)

Fig. 3

5

6

7

A
8

9

1

2

3

4

GM-X922, GM-X1022

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

A

AMP UNIT

C

CN552

SIDE A
B
P.C.Board Chip Part

SIDE B

B

CN501

C

D

10

A
1

2

3

4

5

6

7

8

GM-X922, GM-X1022

SIDE A
A

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

B

C

FAN MOTOR

M M
Fig. 4
D

FAN MOTOR

5

6

7

A
8

11

1

2

3

4

GM-X922, GM-X1022

4.2 FIL UNIT, B.B UNIT
A

SIDE A

B
A
CN852

FIL UNIT

B

C

B.B UNIT

C

A
CN201 Fig. 5

D

12

B C
1

2

3

4

GM-X922, GM-X1022

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 --- -------------------------------------------------GM-X922/X1R/UC Part No. ------------------------=====Circuit Symbol and No.===Part Name --- -------------------------------------------------Q Q Q Q Q PA2027A NJM2068D NJM2068D NJM2068D UPC494C 2SC2459 2SA1049 2SA992 2SC1845 2SA992 2SC1845 2SK389 2SC1845 2SA992 2SA992 2SC1568 2SC1845 2SC3421 2SC4388 2SC4388 2SA1358 2SA1673 2SA1673 2SC2459 2SA1049 2SA992 2SC1845 2SA992 2SC1845 2SK389 2SC1845 2SA992 2SA992 2SC1568 2SC1845 2SC3421 2SC4388 2SC4388 2SA1358 2SA1673 2SA1673 2SD1768S 2SD1768S 2SC2458 2SC2458 2SA1048 2SA1048 2SC2458 2SC2458 2SC2458 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 D D D D D D 655 656 657 658 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 151 152 153 154 155 156 251 252 253 254 255 256 601 602 651 652 654 901 902 903 904 951 952 954 955 956 957 958 959 960 961 Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor FET FET FET FET FET FET Transistor Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode LED LED Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Part No. ------------------------2SA1048 2SC2458 2SA1048 2SB1243 2SA1048 2SC2458 2SC2458 2SA1048 2SA1048 2SB1243 2SC2458 2SD1864 2SD1919 2SD1919 2SB1277 2SB1277 IRFIZ44N IRFIZ44N IRFIZ44N IRFIZ44N IRFIZ44N IRFIZ44N 2SB1566 2SD2395 PR3432S 1SS133 1SS133 PR3432S HZS6L(B1) HZS6L(B1) PR3432S 1SS133 1SS133 PR3432S HZS6L(B1) HZS6L(B1) 1SS133 1SS133 1SS133 HZS7L(B2) 1SS133 RM4Z RM4Z NSPBF50S(VQ) NSPBF50S(VQ) 1SS133 1SS133 HZS12L(A3) 1SS133 1SS133 HZS16L(1) HZS16L(1) ERA92-02VH ERA92-02VH FML22R

A
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 Q Q Q Q Q Q Q

Unit Number : HWH0072 Unit Name : Amp Unit

MISCELLANEOUS 651 801 851 852 951 151 152 153 154 155 156 157 158 160 161 162 163 164 165 166 167 168 169 251 252 253 254 255 256 257 258 260 261 262 263 264 265 266 267 268 269 601 602 611 612 613 651 652 653 654 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 Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor

13

GM-X922, GM-X1022

=====Circuit Symbol and No.===Part Name --- -------------------------------------------------D D L L L L L T TH TH TH TH VR VR VR EF EF 962 963 851 852 901 951 952 951 901 902 903 904 151 251 951 951 952 Diode Diode Ferri-Inductor Ferri-Inductor Choke Coil 50H Choke Coil Choke Coil Transformer Thermistor Thermistor Thermistor Thermistor Semi-fixed 470(B) Semi-fixed 470(B) Semi-fixed 100k(B) Capacitors Capacitors

Part No. ------------------------FML22S 1SS133 CTF1007 CTF1007 CTH1144 CTH1211 CTH1211 CTT1041 CCX1027 CCX1013 CCX1013 CCX1035 CCP1311 CCP1311 CCP1325 CCG-081CCG-081-

=====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 271 272 273 274 275 278 280 281 282 283 601 602 603 604 605 606 607 608 611 612 613 614 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 801 802 805 806 807 808 809 810 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 0.1 0.1 0.1 0.1

Part No. ------------------------RD1/2PM221J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/4PU222J CCN1090 CCN1090 CCN1090 CCN1090 RD1/4PU104J RD1/4PU104J RD1/4PU104J RD1/4PU104J RD1/4PU105J RD1/4PU105J RD1/2PM473J RD1/2PM473J RD1/4PU103J RD1/4PU103J RD1/4PU223J RD1/4PU223J RD1/4PU104J RD1/4PU103J RD1/4PU472J RD1/4PU222J RD1/4PU472J RD1/4PU222J RD1/4PU221J RD1/4PU102J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU392J RD1/4PU392J RD1/4PU103J RD1/4PU472J RD1/4PU473J RD1/4PU221J RD1/4PU152J RD1/4PU472J RD1/4PU101J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU821J RD1/4PU821J RD1/4PU223J RD1/4PU223J RD1/4PU223J RD1/4PU103J RD1/4PU471J RD1/4PU471J RD1/4PU223J RD1/4PU223J RD1/4PU103J RD1/4PU103J RD1/4PU332J RD1/4PU332J RN1/4PC1002D RN1/4PC1002D RN1/4PC1002D RN1/4PC1002D RN1/4PC7501D RN1/4PC7501D RN1/4PC7501D

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 150 151 152 153 154 155 156 157 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 178 180 181 182 183 250 251 252 253 254 255 256 257 259 260 261 262 263 264 265 266 267 268 269 270 0.1 0.1 0.1 0.1 RS1/2PMF100J RD1/4PU472J RD1/4PU472J RD1/4PU223J RD1/4PU101J RD1/4PU473J RD1/4PU101J RD1/4PU471J RD1/4PU102J RD1/4PU621J RD1/4PU472J RD1/4PU561J RD1/4PU333J RD1/4PU390J RD1/4PU333J RD1/4PU821J RD1/4PU681J RD1/4PU221J RD1/4PU470J RD1/4PU470J RD1/2PM221J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/2PM100J RD1/4PU222J CCN1090 CCN1090 CCN1090 CCN1090 RS1/2PMF100J RD1/4PU472J RD1/4PU472J RD1/4PU223J RD1/4PU101J RD1/4PU473J RD1/4PU101J RD1/4PU471J RD1/4PU102J RD1/4PU621J RD1/4PU472J RD1/4PU561J RD1/4PU333J RD1/4PU390J RD1/4PU333J RD1/4PU821J RD1/4PU681J RD1/4PU221J RD1/4PU470J RD1/4PU470J

14

GM-X922, GM-X1022

=====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 866 901 902 951 952 953 954 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996

Part No. ------------------------RN1/4PC7501D RD1/4PU391J RD1/4PU473J RD1/4PU103J RD1/4PU223J RD1/4PU392J RD1/4PU153J RD1/4PU153J RD1/4PU102J RD1/4PU512J RD1/4PU472J RD1/4PU272J RD1/4PU272J RD1/4PU272J RD1/4PU472J RD1/4PU153J RD1/4PU182J RD1/4PU223J RD1/4PU182J RD1/4PU123J RD1/4PU472J RD1/4PU472J RD1/4PU101J RD1/4PU124J RD1/4PU124J RD1/4PU222J RD1/4PU472J RD1/4PU332J RD1/4PU221J RD1/4PU332J RD1/4PU332J RD1/4PU472J RD1/4PU472J RD1/4PU470J RD1/4PU470J RD1/4PU470J RD1/4PU470J RD1/4PU470J RD1/4PU470J RS1/2PMF220J RS1/2PMF220J RD1/2PM470J RD1/2PM470J RD1/4PU472J RD1/4PU472J RD1/2PM221J RD1/2PM221J RS1/2PMF220J

=====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 C C C C C 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 270 278 651 652 653 654 655 656 657 659 660 661 662 801 802 803 804 805 851 852 853 854 855 856 857 858 859 860 901 902 903 904 951 952 953 954 955 956 957 959 960 961 962 963 964 965 966 967 968 969 970 971 4700µF/16V 4700µF/16V 220µF/10V

Part No. ------------------------CFTLA333J50 CEKA470M50 CEKA470M50 CEKA470M50 CEKA470M50 CEKA100M16 CQPA221G2A CQPA102G2A CEKA101M16 CMA150J2H CMA330J2H CFTLA104J50 CFTLA104J50 CMA101J2H CMA101J2H CQPA102G2A CFTLA104J50 CFTLA104J50 CFTLA103J50 CQPA471G2A CCH1036 CFTLA103J50 CFTLA103J50 CEAS100M16 CEAS100M16 CEAS101M16 CFTLA103J50 CEAS220M16 CCH1183 CFTLA103J50 CFTLA103J50 CQMA471J50 CQMA471J50 CEAS100M16 CEAS100M16 CCPUSL470J50 CQMA471J50 CQMA471J50 CEAS100M16 CEAS100M16 CFTLA223J50 CFTLA223J50 CCPUSL470J50 CCPUSL470J50 CCPUSL470J50 CCPUSL470J50 CCH1310 CFTLA224J50 CFTLA104J50 CFTLA104J50 CEAS100M16 CEAS221M10 CQPA102G2A CFTLA105J50 CEAS101M16 CFTLA564J50 CFTLA564J50 CFTLA104J50 CFTLA104J50 CFTLA273J50 CFTLA273J50 CCH1310 CEAS332M35 CEAS332M35 CEAS332M35 CEAS332M35 CEAS471M35 CEAS471M35 CEAS470M16 CEAS470M16

470µF/16V

CAPACITORS C C C C C C C C C C C C C C C C C C C C 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 170 178 CFTLA333J50 CEKA470M50 CEKA470M50 CEKA470M50 CEKA470M50 CEKA100M16 CQPA221G2A CQPA102G2A CEKA101M16 CMA150J2H CMA330J2H CFTLA104J50 CFTLA104J50 CMA101J2H CMA101J2H CQPA102G2A CFTLA104J50 CFTLA104J50 CFTLA103J50 CQPA471G2A

15

GM-X922, GM-X1022

=====Circuit Symbol and No.===Part Name --- -------------------------------------------------C C C C C C C 972 973 974 975 976 995 996

Part No. ------------------------CEAS101M16 CEAS101M16 CEKA471M50 CEKA471M50 CQPA102G2A CFTLA104J50 CFTLA104J50

=====Circuit Symbol and No.===Part Name --- --------------------------------------------------

Part No. -------------------------

CONTRAST TABLE OF AMP UNIT
GM-X922/X1R/UC, GM-X922/X1R/ES, GM-X922/X1R/EW and GM-X1022/X1R/UC are constructed the same except for the following: Part No. Symbol and Description GM-X922/X1R/UC GM-X922/X1R/ES GM-X922/X1R/EW GM-X1022/X1R/UC S901 Switch Not used HSH-156 HSH-156 Not used R955 Not used RD1/4PU105J RD1/4PU105J Not used D903, 904 LED NSPBF50S(VQ) NSPBF50S(VQ) NSPBF50S(VQ) NSPWF50S(AQ)

NETWORK UNIT Consists of FIL UNIT B.B UNIT

R R R R R R R R R R NJM2068S NJM2068S NJM2068S NJM2068S CSH1021 CCS1267 CCS1265 CCS1268 R R R R

551 552 555 556 557 558 559 560 561 562 563 564 565 566

RD1/4PU331J RD1/4PU331J RD1/4PU182J RD1/4PU182J RD1/4PU221J RD1/4PU221J RD1/4PU182J RD1/4PU182J RD1/4PU103J RD1/4PU103J RD1/4PU333J RD1/4PU333J RD1/4PU0R0J RD1/4PU0R0J

B C
IC IC IC IC S VR VR VR 501 502 551 552 501 501 502 551

Unit Number : HWG0014 Unit Name : Network Unit

MISCELLANEOUS IC IC IC IC Switch Volume 20k(E) Volume 10k(A) Volume 10k(C)

CAPACITORS C C C C C C C C C C C C C 501 502 503 504 505 506 551 552 553 554 555 556 560 CFTLA184J50 CFTLA184J50 CFTLA273J50 CFTLA273J50 CFTLA474J50 CFTLA474J50 CFTLA273J50 CFTLA273J50 CEAS4R7M50 CEAS4R7M50 CFTLA334J50 CFTLA334J50 CEAS220M50

RESISTORS R R R R R R R R R R 501 502 503 504 505 506 507 508 509 510 RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU222J RD1/4PU101J RD1/4PU101J

CONTRAST TABLE OF NETWORK UNIT
GM-X922/X1R/UC, GM-X922/X1R/ES, GM-X922/X1R/EW and GM-X1022/X1R/UC are constructed the same except for the following: Part No. Symbol and Description GM-X922/X1R/UC GM-X922/X1R/ES GM-X922/X1R/EW GM-X1022/X1R/UC S551 Switch Not used CSH1021 CSH1021 Not used V552 Volume 50k(C) Not used CCS1263 CCS1263 CCS1263 R553, 554 Not used RD1/4PU822J RD1/4PU822J RD1/4PU822J R563, 564 RD1/4PU333J Not used Not used Not used R565, 566 RD1/4PU0R0J Not used Not used Not used

16

GM-X922, GM-X1022

6. ADJUSTMENT
No. 1 Conditions Input ; adjust 30 seconds after 1k terminate power is switched on, and within 20 seconds. DC-DC Converter Input ; adjust 30 seconds after 1k terminate voltage power is switched on, and within 20 (adjustment) seconds. Item Idling current (adjustment) Adjustment point VR151(Lch) VR251(Rch) VR951 Specifications mV Meter(1) : 20±6mV

2

mV Meter(2) : 35±3V

- Connection Diagram

+14.4V DC Regulated Power Supply
GND SYSTEM CONTROL POWER

4 (2W) 4 (2W) SPEAKER OUTPUT

VR951

VR251 mV Meter (1) Q265 Q268
E C E

VR151
E

Q165 Q168 mV Meter (1)

E

mV Meter (2) GND

AMP UNIT

1k R L 1k

Fig. 6

17

GM-X922, GM-X1022

7. GENERAL INFORMATION
7.1 IC
PA2027A

VCC

1
Over-voltage detect

zz+

16 IN1

-

2V

Stby

2
Bandgap

zz+

15 IN2

-

2V

DET1

3 - zz +

Circuit's movement:on

zz+

14 IN3

-

2V

DET2

4
50µA

13 Cont_V

DET_R

5

4.7k

12 Filter
Bandgap:on Switch:on

GND

6

zz +

-

+ zz 2V

11 Vs_out

2V

NC

7
0.13V 20µA

10 TC

NC

8

+ -

5.6V S R

+ Q Oneshot (1µsec)

+ -

9

Mute_out

2V

Fig. 7

18

GM-X922, GM-X1022

7.2 DISASSEMBLY
Panel Unit

- Removing the Case and the Panel Unit
1. Remove eighteen screws A, seven screws B and two screws C. 2. Remove Case and Panel Unit.

Case Panel Unit
Fig. 8

Network Unit

- Removing the Network Unit and the Amp Unit
Some silicone glue has been applied between the Heat Sink and the Sub Heat Sink. therefore, to remove the Amp Unit from the Heat Sink. 1. Remove two screws D. 2. Remove Network Unit. 3. Remove four screws E and nine screws F. 4. Use 2 pcs. of screw E and insert them into the two holes marked with an arrow. 5. Alternately tighten them little by little until the Sub Heat Sink separates from the Heat Sink.

Sub Heat Sink

Sub Heat Sink Amp Unit Heat Sink
Fig. 9

19

GM-X922, GM-X1022

20

Gain Control
If the LPF select switch is set to LPF, you can select a cut off frequency from 50 to 120Hz. The power indicator lights when the power is switched on.

- SETTING THE UNIT

Cut Off Frequency Control

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 back of the power amplifier clockwise. If the sound distorts when the volume is turned up, turn the gain control counter-clockwise.

· Set the gain control to "NORMAL" when this amplifier is connected to a Pioneer car stereo with RCA output jacks. If the sound level is too low or distorts, adjust the gain control. · Adjust the gain control to the "MIN" side of "NORMAL" when this amplifier is connected to a Pioneer car stereo (High voltage output type).

8. OPERATIONS AND SPECIFICATIONS

Bass Boost Level Control

Bass boost level control can boost the level around the frequency selected by the bass boost frequency control from 0 to 12 dB.

LPF (Low-Pass Filter) Select Switch
Set the LPF select switch as follows according to the type of speaker that is connected to the speaker output connector and the car stereo system:

LPF Select Switch
ON (right) OFF (left)

Audio frequency range to be output
* -- 50 to 120 Hz Full range * See the "Cut Off Frequency Control" section.

Speaker Type
Sub-woofer Full range

Remarks
Connect a sub-woofer.

Bass Boost Frequency Control(GM-X1022)

You can select a bass boost frequency from 40 to 120 Hz with the bass boost control.

Fig. 10

Connection Diagram
4. Connect the wires to the terminal.
· Fix the wires securely with the terminal screws.

Fuse (30 A)

Connecting the Power Terminal
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. Power terminal Ground wire (black) [RD-223] (sold separately). Connect to metal body or chassis. · Always use the special red battery and ground wire [RD-223], which is sold separately. Connect the battery wire directly to the car battery positive terminal (+) and the ground wire to the car body. GND terminal System remote control terminal

Grommet

Fuse (30 A)

1. Pass the battery wire from the engine compartment to the interior of the vehicle.
· After making all other connections to the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Engine Fuse (30A) compart- Interior of the vehicle ment

System remote control wire (Blue) Ground wire

RCA input

Amplifier with RCA input jacks

Connecting wires with RCA pin plugs (sold separately). Car stereo with RCA output jacks External Output RCA input jack

Battery wire

Fig. 15

RCA output jack

Fuse (30A) Drill a 14-mm Positive terminal hole into the Insert the O-ring rubber vehicle body. grommet into the vehicle Fig. 12 body.

Reverse side

2. Twist the battery wire, ground wire and system remote control wire.
Twist

Fig. 13 3. Attach lugs to wire ends. Lugs not supplied.
· Use pliers, etc., to crimp lugs to wires. Lug

-X1022: Fuse (30 A) × 2 Ground wire Lug Battery wire

Speaker output terminal See the "Connecting the Speaker wires" section for speaker connection instructions.

Blue [RD-223] (sold separately). Connect the male terminal of this wire to the blue wire 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.

Fig. 14

GM-X922, GM-X1022

21

Fig. 11

GM-X922, GM-X1022

22

Connecting the Speaker Output Terminals
C1

Connecting the Speaker wires
Three-channel mode, two-way system
Mid-high (Left) Woofer (Mono) Mid-high (Right)

1. Expose the end of the speaker wires by about 10 mm and twist using nippers or a cutter.
L1

The speaker output mode can be two-channel (stereo), one-channel (mono), or threechannel (stereo + mono). Connect the speaker leads to suit the mode according to figures on the following pages.
C1

Twist · When connecting to the speaker input, do not connect the RCA output. · When connecting to the RCA input, do not connect the speaker input.

10 mm

Fig. 22
Three-channel mode, three-way system
C1

Fig. 16 2. Attach lugs to speaker wire ends. Lugs not supplied.
Two-channel mode (stereo)
High/mid-high (Left) Mid/mid-bass (Left) Woofer/sub-woofer (Mono) Mid/mid-bass (Right) High/mid-high (Right)

· Use pliers, etc., to crimp lugs to wires.
L2 C2

Lug

Speaker wire
L1

(Left) Speaker (Right)

Fig. 17 Fig. 20
One-channel mode (mono)
L2 C2

3. Connect the speaker wires to the speaker output terminals.

· Fix the speaker wires securely with the terminal screws. · After pass through the terminal cover, connect the terminal

Fig. 23

Terminal screw Speaker (Mono)

Speaker output terminal

Speaker wire

Terminal cover

Fig. 21
Three-channel mode (stereo + mono)

Fig. 18

4. Cover the terminals.

The power amplifier is basically a twochannel/one-channel bridgeable amplifier, but three channels can be achieved by combining the stereo and mono modes using inductors and capacitors.

· Inductors (L1 and L2 in the diagrams) act as low-pass filters. Capacitors (C1 and C2 in the diagrams) act as high-pass filters. Inductors (L) are used for the woofer/sub-woofer, and capacitors (C) are used for the high/mid-high. · Remember when bridging an amplifier it will see only half of the original speaker impedance. Therefore, you must use speakers that have ratings of 4 ohms or higher. If you use speakers that have lower impedance ratings it may cause damage to the amplifier. · When the inductors and capacitors are connected to the speaker wires, secure or solder them so they cannot be pulled loose. Tape or use heat shrink on the joints to prevent short circuits.

Fig. 19

- SPECIFICATIONS

Power source .............................................................................................................. 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption .......................................................................................................... 30 A (at continuous power, 4 ) Average current drawn* .............................................................................................................. 9 A (4 for two channels) 15 A (4 for one channel) Fuse .......................................................................................................................................................................... 30 A × 2 Dimensions ........................................................................................................................ 255 (W) × 61 (H) × 310 (D) mm [10 (W) × 2-3/8 (H) × 12-1/4 (D) in.] Weight ........................................................................................................ 4.1 kg (9.0 lbs.) (Leads for wiring not included) Maximum power output ........................................................................................................ 200 W × 2 / 600 W × 1 (EIAJ) Continuous power output .......................................................... 100 W × 2 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.04% THD) 300 W × 1 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.4% THD) 150 W × 2 (at 14.4V, 2 , 20 -- 20,000 Hz, 0.4% THD) Load impedance ............................................................................................................................ 4 (1 -- 8 allowable) (Bridge connection: 2 -- 8 allowable) Frequency response ............................................................................................................ 10 -- 65,000 Hz (+0 dB, ­1 dB) Signal-to-noise ratio ...................................................................................................................... 107 dB (IHF­A network) Distortion ............................................................................................................................................ 0.003% (10 W, 1 kHz) Separation ........................................................................................................................................................ 73 dB (1 kHz) Low pass filter .................................................................................................................... Cut off frequency: 50 -- 120 Hz Cut off slope: ­12 dB/oct Bass boost (GM-X922) .............................................................................................................................. Frequency: 60 Hz Gain: 0 -- 12 dB Bass boost (GM-X1022) ................................................................................................................ Frequency: 40 -- 120 Hz Gain: 0 -- 12 dB Input level / impedance ............................................................................................................................ 0.4 -- 6.5 V/22 k

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-X922, GM-X1022

23