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Service Manual
BRIDGEABLE POWER AMPLIFIER
ORDER NO.
CRT2166
GM-222
CONTENTS
1. 2. 3. 4. SAFETY INFORMATION ............................................1 EXPLODED VIEWS AND PARTS LIST .......................2 SCHEMATIC DIAGRAM .............................................6 PCB CONNECTION DIAGRAM ..................................8
X1R/UC, ES, EW
5. ELECTRICAL PARTS LIST ........................................12 6. ADJUSTMENT..........................................................14 7. GENERAL INFORMATION .......................................15 7.1 DISASSEMBLY ...................................................15 8. OPERATIONS AND SPECIFICATIONS.....................16
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 mot 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.
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. JAN. 1998 Printed in Japan
GM-222
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
Fig. 1
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 6 7 8 9-1 9-2 Contain Box Carton Protector Polyethylene Bag Screw(x4) Polyethylene Bag Terminal Cord Assy Owner's Manual Owner's Manual Part No.
See Contrast table (2) See Contrast table (2)
Mark No. Description * * 9-3 Card 9-4 Warranty Card
Part No.
See Contrast table (2) See Contrast table (2)
HHP0020 HEG0010 BYC40P180FZK HEG0011
See Contrast table (2) See Contrast table (2) See Contrast table (2) See Contrast table (2)
2
GM-222
(2) CONTRAST TABLE
GM-222/X1R/UC, GM-222/X1R/ES and GM-222/X1R/EW are constructed the same except for the following: Part No. GM-222/X1R/ES HHL0139 HHG0139 HKC0003(x4) HDE4453 HRD0045 HRD0049 Not used Not used
Mark No. 1 2 7 8 9-1 9-2 9-3 9-4
Symbol and Description Contain Box Carton Terminal Cord Assy Owner's Manual Owner's Manual Card Warranty Card
GM-222/X1R/UC HHL0138 HHG0138 HKC0003(x8) Not used HRD0046 Not used ARY1048 Not used
GM-222/X1R/EW HHL0140 HHG0140 HKC0003(x4) HDE4453 HRD0047 Not used Not used HRY1087
* *
- Owner's Manual
Model GM-X222/X1R/UC GM-X222/X1R/ES GM-X222/X1R/EW Part No. HRD0046 HRD0045 HRD0049 HRD0047 Language English, French English, Spanish Arabic, Portuguese(B) English, French, German, Dutch, Spanish, Italian
3
GM-222
2.2 EXTERIOR
Fig. 2
4
GM-222
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Screw Screw(M3x6) Screw(M3x12) Screw Screw Cord Assy Fuse(15A) Ground Wire(Black) Holder Panel Case Panel Spacer Heat Sink Spacer Amp Unit Screw Screw Plug(CN855) Clamper Connector(CN853) Cord(CN551) Fuse(20A) Heat Sink(Sub Heat Sink) Heat Sink(Sub Heat Sink) Part No. BSZ30P050FZK CBA1320 CBA1323 CBA1382 HBA0006
See Contrast table (2) See Contrast table (2) See Contrast table (2)
Mark No. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Description Pin Jack(CN851) Terminal(CN901) Terminal(CN651) Holder Screw Plate Unit ····· Transistor(Q561,562) Transistor(Q563,564) Transistor(Q555,556) Thermistor(TH901) FET(Q905,906) Diode(D907) Diode(D910) System Remote Control
Part No. HKB0001 HKE0001
See Contrast table (2)
HNC0006 PPZ30P060FZK HXA0163 2SD2438 2SB1587 2SD2343 CCX1013 IRFIZ44N ESAC25M-02C ESAC25M-02N
See Contrast table (2)
CNC5399
See Contrast table (2)
HNB0016 HNB0052 HNM0026 HNR0097 HNV3975
See Contrast table (2)
BMS30P060FZK BMS30P080FMC CKS1618 HNV0006 HDE4418 HDE4610 HEK0020 HNR0053 HNR0054
41 Badge Unit HXA0164 42 Light Pipe Unit HXA0182 43 Special Red Battery Wire See Contrast table (2)
(2) CONTRAST TABLE
GM-222/X1R/UC, GM-222/X1R/ES and GM-222/X1R/EW are constructed the same except for the following: Part No. GM-222/X1R/ES HDE4453 HEK0015 HDE4455 HNB0057 HWH0061 HKE0003 HDE0007 HDE4454
Mark No. 6 7 8 10 16 28 40 43
Symbol and Description Cord Assy Fuse(15A) Ground Wire(Black) Panel Amp Unit Terminal(CN651) System Remote Control Special Red Battery Wire
GM-222/X1R/UC Not used Not used Not used HNB0058 HWH0062 HKE0007 Not used Not used
GM-222/X1R/EW HDE4453 HEK0015 HDE4455 HNB0057 HWH0061 HKE0003 HDE0007 HDE4454
5
1
2
3
4
GM-222
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
MOTHER PCB
SPEAKER INPUT LEVEL
UC model only
10/50 10/50
C851, 852 UC : 100P ES, EW : 470P
MUTE
B
R L R
C
+15 REGULATOR
SWITCHING REGULATOR
B
ISOLATOR PCB
-15 REGULATOR THERMO-DETECTION
SIGNAL ROUTE
: AUDIO SIGNAL
D
AMP UNIT Consists of MOTHER PCB ISOLATOR PCB
6
A B
1 2 3 4
5
6
7
8
GM-222
A
PRE DRIVER
POWER AMP OVER CURRENT DETECTOR
BUFFER AMP
MUTE
B
SWITCHING CONTROL
OVER CURRENT DETECTOR
C
ES and EW models only
ES and EW models only
HEK0015 15A 22/50
GROUND WIRE BATTERY WIRE SYSTEM REMOTE CONTROL
OVER VOLTAGE PROTECTOR
POWER CONTROL / MUTE
D
Fig. 3
A
5 6 7 8
7
1
2
3
4
GM-222
4. PCB CONNECTION DIAGRAM
A
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
MOTHER PCB
CORD ASSY
SIDE A
B
P.C.Board
Chip Part
SIDE B
G
G
C
D
8
A
1 2 3 4
5
6
7
8
GM-222
A
SIDE A
OUT
IN
B
B
ISOLATOR PCB
C
D
Fig. 4
A B
5 6 7 8
9
1
2
3
4
GM-222
A
A
MOTHER PCB
B
ISOLATOR PCB
C
D
10
A B
1 2
3
4
5
6
7
8
GM-222
SIDE B
A
B
C
D
Fig. 5
A
5 6 7 8
11
GM-222
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-222/X1R/UC AMP UNIT Consists of MOTHER PCB ISOLATOR PCB Part No. ------------------------=====Circuit Symbol and No.===Part Name --- -------------------------------------------------D D D D D D D D D D D D D D D D L L L T TH TH VR EF EF 654 655 656 657 658 901 902 903 904 905 906 907 908 909 910 911 851 852 901 901 901 902 453 902 903 Diode Diode Diode Diode Diode LED Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Ferri-Inductor Ferri-Inductor Choke Coil 50H Transformer Thermistor Thermistor Volume 10k(A) Capacitors Capacitors Part No. ------------------------HZS7L(B2) 1SS133 HZS7L(A2) 1SS133 1SS133 BR4361F ERA15-02VH ERA15-02VH HZS18L(3) 1SS133 1SS133 ESAC25M-02C HZS16L(1) HZS16L(1) ESAC25M-02N 1SS133 CTF1007 CTF1007 CTH1142 CTT1034 CCX1013 CCX1035 CCS1241 CCG-081 CCG-081
A
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 D D D 451 551 651 851 852 901 551 552 553 554 555 556 561 562 563 564 651 652 653 654 655 656 657 658 659 660 661 662 663 901 902 903 904 905 906 907 908 651 652 653
Unit Number : HWH0062 Unit Name : Amp Unit
MISCELLANEOUS IC IC IC IC IC IC Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Chip Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Chip Transistor Transistor Transistor Transistor Transistor FET FET Transistor Transistor Diode Diode Diode UPC4570HA UPC4570C TA8194Z UPC4570C UPC4570C UPC494C 2SA1145 2SA1145 2SC2705 2SC2705 2SD2343 2SD2343 2SD2438 2SD2438 2SB1587 2SB1587 2SD1768S 2SD1768S 2SA1162 2SC2458 2SC2458 2SC2458 2SA1048 2SC2458 2SA1048 2SB1243 2SC2712 2SC2712 2SA1162 2SC2458 2SA1048 2SA1048 2SA1048 IRFIZ44N IRFIZ44N 2SD1864 2SB1243 1SS133 1SS133 1SS133
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 137 138 147 148 455 456 465 466 501 502 551 552 555 556 557 558 559 560 561 562 563 564 565 566 567 RS1/10S222J RS1/10S222J RS1/8S0R0J RS1/8S0R0J RS1/10S0R0J RS1/10S0R0J RS1/8S181J RS1/10S181J RD1/4PU221J RD1/4PU221J RS1/10S222J RS1/10S222J RS1/10S822J RS1/10S822J RS1/10S471J RS1/10S471J RS1/10S223J RS1/10S223J RS1/10S153J RD1/4PU153J RS1/10S153J RD1/4PU153J RD1/4PU561J RD1/4PU561J RD1/4PU561J
12
GM-222
=====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 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 589 590 591 592 593 594 595 596 597 598 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 676 678 680 681 682 851 852 853 854 855 856 857 858 859
Part No. ------------------------RD1/4PU561J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU161J RD1/4PU161J RD1/4PU161J RD1/4PU161J RD1/4PU562J RD1/4PU562J RD1/4PU222J RD1/4PU222J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 CCN1013 RS1/2PMF100J RS1/2PMF100J RD1/4PU393J RD1/4PU393J RD1/4PU564J RD1/4PU564J RD1/4PM473J RD1/4PM473J RS1/10S104J RS1/10S472J RS1/10S103J RD1/4PU222J RS1/10S472J RD1/4PU221J RS1/10S103J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU101J RS1/10S104J RS1/10S221J RD1/4PU152J RD1/4PU472J RS1/10S472J RD1/4PU222J RS1/10S103J RS1/10S223J RS1/10S223J RS1/8S102J RS1/8S471J RS1/8S471J RS1/10S223J RS1/10S223J RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D
=====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 860 861 862 864 868 869 872 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 927 928 929 930
Part No. ------------------------RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RS1/10S104J RS1/10S104J RD1/4PU473J RD1/4PU473J RS1/2PMF561J RS1/2PMF220J RD1/4PU102J RD1/4PU102J RS1/10S472J RS1/10S103J RS1/10S183J RD1/4PU100J RD1/4PU100J RS1/10S153J RS1/10S102J RD1/4PU272J RS1/10S472J RS1/10S472J RS1/10S472J RD1/4PU332J RD1/4PU332J RD1/4PU220J RD1/4PU220J RD1/4PU472J RD1/4PU472J RD1/4PU101J RD1/4PU101J RS1/2PMF560J RD1/4PU560J RS1/2PMF561J RS1/2PMF220J RD1/4PU272J RD1/4PU221J
0.22 0.22 0.22 0.22 0.22 0.22 0.22 0.22
CAPACITORS 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 457 458 551 552 553 554 555 556 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 651 CKSQYB473K25 CKSQYB473K25 CKSYB104K25 CKSYB104K25 CEAS101M10 CEAS101M10 CCSQCH680J50 CCSQCH680J50 CCSQCH220J50 CCSQCH220J50 CCPUSL330J50 CCPUSL330J50 CCPUSL330J50 CCPUSL330J50 CCSQCH220J50 CCSQCH220J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA223J50 CFTNA223J50 CFTNA333J50 CFTNA333J50 CCH1036
220µF/10V
13
GM-222
=====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 652 653 654 655 656 657 658 659 851 852 853 854 855 856 857 858 859 860 861 862 470µF/16V
Part No. ------------------------CCH1183 CEAS470M16 CEAS220M50 CFTNA103J50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CCH1183 CCSQCH101J50 CCSQCH101J50 CEAL100M16 CEAL100M16 CKSQYB472K50 CKSQYB472K50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CCSQCH470J50 CEAS100M50 CEAS100M50
=====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 863 864 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918
Part No. ------------------------CKSQYB103K50 CKSQYB103K50 CEAS1R0M50 CEAS221M10 CEAS2R2M50 CEAS1R0M50 CQMA472J50 CQMA472J50 CCH1130 CCH1200 CCH1200 CEAS101M35 CEAS101M35 CEAS100M50 CEAS100M50 CQMA102J50 CQMA102J50 CFTNA224J50 CQMA102J50 CKSYB103K50
470µF/16V
3300µF/16V 3300µF/35V 3300µF/35V
GM-222/X1R/UC, GM-222/X1R/ES and GM-222/X1R/EW are constructed the same except for the following:
- Amp Unit
Symbol and Description S901 Switch R869,872 R926 C851,852 C861,862 GM-222/X1R/UC Not used RD1/4PU473J Not used CCSQCH101J50 CEAS100M50 Part No. GM-222/X1R/ES GM-222/X1R/EW HSH-156 Not used RD1/4PU105J CKSQYB471K50 Not used
6. ADJUSTMENT
There is no information to be shown in this chapter.
14
GM-222
7. GENERAL INFORMATION
7.1 DISASSEMBLY
- Removing the Case and Panel
A
1. Remove six screws A, and then remove case. 2. Remove panel.
A
Panel
Case
Fig. 6
- Removing the Amp Unit
B C
Sub Heat Sink
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 four screws B and three screws C. 2. Use 2 pcs. of screw B and insert them into the two holes marked with an arrow. 3. Alternately tighten them little by little until the Sub Heat Sink separates from the Heat Sink. Sub Heat Sink
C
B
Amp Unit Heat Sink Fig. 7
15
GM-222
16
- SETTING THE UNIT
Gain Control
Power Indicator
The power indicator lights when the power is switched on.
If the sound 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 is too low or distorts, adjust the gain control.
BFC (Beat Frequency Control) Switch (ES and EW models)
If you hear a beat while listening to an AM broadcast with your car stereo, change the BFC switch using a small screwdriver.
8. OPERATIONS AND SPECIFICATIONS
Fig. 8
- CONNECTION DIAGRAM
(2) ES and EW models
Special red battery wire [RD-222] (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. Grommet Fuse (30 A) Ground wire (black) Connect to metal body or chassis. Ground wire (black) [RD-222] (sold separately). Connect to metal body or chassis. Special red battery wire After making all other connections at the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery.
(1) UC model
Grommet
Fuse (30 A)
Connecting wires with RCA pin plugs (sold separately). Car stereo with RCA output jacks
Connecting wires with RCA pin plugs (sold separately). Car stereo with RCA output jacks
External Output
External Output
RCA input jack
Fuse (20 A) Speaker output terminal See the "Connecting the Speaker wires" section for speaker connection instructions. Blue 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.
Fuse (20 A) RCA input jack
Fig. 10
Speaker terminal See the "Connecting the Speaker wires" section for speaker connection instructions.
Blue 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.
GM-222
Fig. 9
17
GM-222
18
- CONNECTING - CONNECTING THE SPEAKER TERMINALS
Three-channel mode, two-way system
- CONNECTING THE SPEAKER WIRES
(1) UC model
The speaker output mode can be two-channel (stereo), one-channel (mono), or threechannel (stereo + mono). To connect the speaker leads to suit the mode. Connect the speakers according to figures on the following pages.
C1
THE POWER TERMINAL
1. Expose the end of the speaker wires by about 10 mm and twist it using nippers or a cutter.
Twist
10 mm
· Be sure to use the special red battery wire supplied with the amplifier and connect directly to the battery. Use the supplied black ground wire and connect to the vehicle body.
Mid-high (Left)
L1
1. Pass the battery wire from the engine compartment to the interior of the vehicle.
Fig. 13
2. Attach lugs to speaker wire ends.
· Use pliers, etc., to crimp lugs to wires. Lug (Right) Speaker input (Left)
· When connecting to the speaker input, do not connect the RCA output. · When connecting to the RCA input, do not connect the speaker input.
Woofer (Mono)
C1
Two-channel mode (stereo)
Mid-high (Right)
Fig. 19
Three-channel mode, three-way system
· After making all other connections to the amplifier, connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery. Engine Interior of compartFuse (30A) the vehicle ment Speaker wire
C1
Positive terminal
High/mid-high (Left)
L2 C2
Insert the O-ring rubber grommet into the vehicle body.
Drill an 8-mm hole into the vehicle body.
Fig. 14
3. Connect the speaker wires to the speaker terminals.
(Left) Speaker (Right) · Fix the speaker wires securely with the terminal screws.
Mid/mid-bass (Left)
L1
Fig. 11
Woofer/sub-woofer (Mono)
2. Connect the wires to the terminal.
UC model:
Terminal screw Speaker input terminal
Fig. 17
One-channel mode (mono)
(Right) Speaker input (Left)
L2
C2
Mid/mid-bass (Right) High/mid-high (Right)
· Fix the wires securely with the terminal screws.
GND terminal Power terminal System remote control terminal
Fig. 20
System remote control wire (Blue) Speaker output terminal Speaker wire
Ground wire
Fig. 15
ES and EW models:
Terminal screw
Speaker (Mono)
Fig. 18
Three-channel mode (stereo + mono)
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.
Battery wire
Fig. 12
Speaker output terminal
Speaker wire
Fig. 16
· The inductor (L1 or L2 in the diagram) acts as a low-pass filter. The capacitor (C1 or C2 in the diagram) acts as a highpass filter. The inductor (L) shall be used on the woofer/sub-woofer, and that a capacitor (C) shall be used on 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.
- SPECIFICATIONS
(2) ES and EW models
The speaker output mode can be two-channel (stereo), one-channel (mono). To connect the speaker leads to suit the mode. Connect the speakers according to figures on the following pages.
Two-channel mode (stereo)
One-channel mode (mono)
(Left) Speaker (Right)
Speaker (Mono)
Fig. 21 Fig. 22
Power source .............................................................................................................. 14.4 V DC (10.8 -- 15.1 V allowable) Grounding system ............................................................................................................................................ Negative type Current consumption ........................................................................................................ 12.5 A (at continuous power, 4 ) Average current drawn* ............................................................................................................ 3.5 A (4 for two channels) 6.0 A (4 for one channel) Fuse .................................................................................................................................................................................. 20 A Dimensions ........................................................................................................................ 216 (W) × 52 (H) × 175 (D) mm [8-1/2 (W) × 2-1/8 (H) × 6-7/8 (D) in.] Weight ........................................................................................................ 2.1 kg (4.7 lbs.) (Leads for wiring not included) Maximum power output .......................................................................................................... 70 W × 2 / 160 W × 1 (EIAJ) Continuous power output (UC and ES models) .......................... 35 W × 2 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.08% THD) 80 W × 1 (at 14.4V, 4 , 20 -- 20,000 Hz, 0.8% THD) 50 W × 2 (at 14.4V, 2 , 20 -- 20,000 Hz, 0.8% THD) Continuous power output (EW model) ...................................................... 55 W × 2 / 125 W × 1 (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 (UC and ES models) .................................................................................... 105 dB (IHFA network) Signal-to-noise ratio (EW model) .................................................................................................. 105 dB (IECA network) Distortion ............................................................................................................................................ 0.004% (10 W, 1 kHz) Separation ........................................................................................................................................................ 60 dB (1 kHz) Input level / impedance .................................................................................................................. RCA: 0.4 -- 4 V / 22 k Speaker (UC model): 1.6 -- 10 V / 40 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-222
19