Specifications AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION 185 watts per channel minimum continuous average power into 4 ohms, both channels driven from 20 Hz to 20 kHz with no more than 1 % total harmonic distortion per Car Audio Ad Hoc Committee standards.
Circuit system OTL (output transformerless) circuit Pulse power supply Inputs RCA pin jacks High level input connector Input level adjustment range 0.V (RCA pin jacks), 1.V (High level input) Outputs Speaker terminals Speaker impedance (stereo) (when used as a bridging amplifier) Maximum output 380 W 2 (at 4 ) 1,000 W (BTL, at 4 ) Rated output (supply voltage at 14.4 V) 185 W RMS 2 (20 Hz 20 kHz, 1 % THD + N, at 4 ) 200 W RMS 2 (20 Hz 20 kHz, 1 % THD + N, at 2 ) 400 W RMS (BTL) (20 Hz 20 kHz, 1 % THD + N, at 4 ) Packaging cushions are made from paper. Halogenated flame retardants are not used in cabinets. Halogenated flame retardants are not used in printed wiring boards. 5 Hz 50 kHz ( dB) 0.008 % or less (at 1 kHz, 4 ) 80 Hz, 18 dB/oct 12 V DC car battery (negative ground) Power supply voltage 10.V Current drain at rated output: 45 A (4 , 185 W 2) Remote input: 1 mA Dimensions Approx. 288 mm (16 3/1/3/8 in) (w/h/d) not incl. projecting parts and controls Mass Approx. 4.0 kg (8 lb 13 oz) not incl. accessories Supplied accessories Mounting screws (4) High level input cord (1) Protection cap (1) Frequency response Harmonic distortion Low-pass filter Power requirements Design and specifications are subject to change without notice. CEA2006 Standard Power Output: 185 Watts RMS 2 at 4 Ohms < 1% THD+N SN Ratio: 93 dBA (reference: 1 Watt into 4 Ohms)

3-268-519-11 (1)

Warning
When replacing the fuse, be sure to use one matching the amperage stated above the fuse holder. Never use a fuse with an amperage rating exceeding the one supplied with the unit as this could damage the unit.
El indicador POWER/PROTECTOR cambia de verde a rojo.
Stereo Power Amplifier Amplificador
Operating instructions Manual de instrucciones
La unidad se calienta de forma exagerada.
* Protection circuit This amplifier is provided with a protection circuit that operates in the following cases: when the unit is overheated when a DC current is generated when the speaker terminals are short-circuited. The colour of the POWER/PROTECTOR indicator will change from green to red, and the unit will shut down. If this happens, turn off the connected equipment, take out the cassette tape or disc, and determine the cause of the malfunction. If the amplifier has overheated, wait until the unit cools down before use. If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer.

Location and Function of Controls

Sustitucin del fusible

Si el fusible se funde, compruebe la conexin de alimentacin y sustityalo. Si el fusible se funde de nuevo despus de sustituirlo, es posible que exista un fallo de funcionamiento interno. En este caso, pngase en contacto con el distribuidor Sony ms prximo.
1 POWER/PROTECTOR indicator
Lights up in green during operation. When the PROTECTOR is activated the indicator will change from green to red. When the PROTECTOR is activated refer to the Troubleshooting Guide.

3 LPF switch

When the LPF switch is set to ON, the Low-pass filter (80 Hz) is effective.
Para el material de relleno y proteccin se ha utilizado papel. Los chasis impresos no contienen retardantes de llama halogenados. Las placas del circuito impreso no contienen retardantes de llama halogenados.

Features

Maximum power output of 380 W per channel (at 4 ). This unit can be used as a monaural amplifier with a maximum output of 1,000 W. Dual mode connection possible for a multi-speaker system. Built in Low-pass filter (80 Hz, 18 dB/oct). Hi-level Sensing Power On feature allows unit to be activated without need for REMOTE connection. Pulse power supply* for stable and regulated output power. Direct connection can be made with the speaker output of your car audio unit if it is not equipped with the line output (High level input connection). * Pulse power supply This unit has a built-in power regulator which converts the power supplied by the 12 V DC car battery into high speed pulses using a semiconductor switch. These pulses are stepped up by the built-in pulse transformer and separated into both positive and negative power supplies before being converted into direct current again. This is to regulate fluctuating voltage from the car battery. This light weight power supply system provides a highly efficient power supply with a low impedance output.

Troubleshooting Guide

The following checklist will assist in the correction of most problems which you may encounter with your unit. Before going through the checklist below, refer to the connection and operating procedures. Problem The POWER/PROTECTOR indicator does not light up. Cause/Solution The fuse is blown. t Replace the fuse with a new one. The ground wire is not securely connected. t Fasten the ground wire securely to a metal point of the car. The voltage going into the remote terminal is too low. The connected car audio unit is not turned on. t Turn on the car audio unit. The system employs too many amplifiers. t Use a relay. Check the battery voltage (10.V). Turn off the power switch. The speaker outputs are shorted. t Rectify the cause of the short. Turn off the power switch. Make sure the speaker cord and ground wire are securely connected. The unit heats up abnormally. Use speakers with suitable impedance. t (stereo), (when used as a bridging amplifier). Make sure to place the unit in a well ventilated location. The thermal protector is activated. t Reduce the volume. The power connecting wires are installed too close to the RCA pin cords. t Keep the wires away from the cords. The ground wire is not securely connected. t Fasten the ground wire securely to a metal point of the car. Negative speaker wires are touching the car chassis. t Keep the wires away from the car chassis. The LPF switch is set to the ON position. By default, the LPF switch is in ON position. t When connecting the full range speaker, set to OFF position. The LEVEL adjustment control is not appropriate. Turn the LEVEL adjustment control in the clockwise direction.

The POWER/PROTECTOR indicator will change from green to red.
The unit becomes abnormally hot.

LPF(80Hz)

POWER/ PROTECTOR

6 0.3V 1 ON 0.5

The sound is interrupted. Alternator noise is heard.

The sound is muffled.

The sound is too low.

Dimensions/Dimensiones

414 (16 3/8) 356 (14 1/8) 55 (2 1/4) Unit: mm (in) Unidad: mm

269 (10 5/8)

6 (1/4)

288 (11 3/8)

Connections/Conexiones
Parts for Installation and Connections/ Componentes de instalacin y conexiones
Power Connection Wires (not supplied) Cables de conexin de alimentacin (no suministrados)
Input Connections/Conexiones de entrada

Speaker Connections

Turn on or off the LPF switch at the unit rear as illustrated below.
Remote output*1 Salida remota*1 (REM) to a metal point of the car a un punto metlico del automvil less than 450 mm (18 in) menos de 450 mm
Line Input Connection (with Speaker Connection 1, 2 or 4) Conexin de entrada de lnea (con conexin de altavoces 1, 2 4)
Car audio unit Sistema de audio para automvil
Conexiones de los altavoces
Encienda o apague el interruptor LPF situado en la parte posterior de la unidad, como se muestra a continuacin.
2-Speaker System (with Input Connection A or C) Sistema de 2 altavoces (con conexin de entrada A o C)

( 4) 0.2 m

LINE OUT

OFF ON

Installation

Before Installation

Mount the unit either inside the trunk or under a seat. Choose the mounting location carefully so the unit will not interfere with the normal movements of the driver and it will not be exposed to direct sunlight or hot air from the heater. Do not install the unit under the floor carpet, where the heat dissipation from the unit will be considerably impaired. First, place the unit where you plan to install it, and mark the positions of the 4 screw holes on the mounting board (not supplied). Then drill a 3 mm (1/8 in) pilot hole at each mark and mount the unit onto the board with the supplied mounting screws. The mounting screws are all 15 mm (19/32 in) long, so make sure that the mounting board is thicker than 15 mm (19/32 in).
Fuse (60 A) Fusible (60 A)
Line Input Connection (with Speaker Connection 3) Conexin de entrada de lnea (con conexin de altavoces 3)
+12 V car battery Batera de automvil de +12 V * If you have the factory original or some other car audio unit without a remote output for the amplifier, connect the remote input terminal (REMOTE) to the accessory power supply. In High level input connection, car audio unit can also be activated without need for REMOTE connection. However, this function is not guaranteed for all car audio units. *1 Si dispone del sistema de audio para automvil original de fbrica o de otro sistema sin una salida remota para el amplificador, conecte el terminal de entrada remota (REMOTE) a la fuente de alimentacin auxiliar. En la conexin de entrada de alto nivel, el sistema de audio para automvil tambin puede activarse sin necesidad de conexin REMOTE. No obstante, esta funcin no se garantiza en todos los sistemas de audio para automvil. Left channel Canal izquierdo L (BTL)

XM-222MK2

SERVICE MANUAL

Ver 1.1 2002. 03

Canadian Model AEP Model UK Model E Model

SPECIFICATIONS

OTL (output transformerless) circuit Pulse power supply Inputs RCA pin jacks High level input connector Input level adjustment range 0.V (RCA pin jacks), 0.V (High level input) Outputs Speaker terminals Speaker impedance (stereo) (when used as a bridging amplifier) Maximum outputs 100 W 2 (at 4 ) 222 W (BTL, at 4 ) Rated outputs (supply voltage at 14.4 V) 35 W 2 (20 Hz 20 kHz, 0.04% THD, at 4 ) 40 W 2 (20 Hz 20 kHz, 0.1% THD, at 2 ) 80 W (Monaural) (20 Hz 20 kHz, 0.1% THD, at 4 ) Frequency response 5 Hz 80 kHz ( +0 dB) 3 Harmonic distortion 0.005% or less (at 1 kHz, 4 , 10 W) Low-pass filter 80 Hz, 18 dB/oct Power requirements 12 V DC car battery (negative ground) Power supply voltage 10.V Current drain at rated output : 12 A (4 , 35 W 2) Remote input : 1.5 mA Dimensions Approx. 158 mm (w/h/d) not incl. projecting parts and controls Mass Approx. 1.6 kg not incl. accessories Supplied accessories Mounting screws (4) High level input cord (1) Protection cap (1) Design and specifications are subject to change without notice. Circuit system

STEREO POWER AMPLIFIER

9-873-557-02

2002C0400-1 2002. 03

Sony Corporation
e Vehicle Company Published by Sony Engineering Corporation
XM-222MK2 SECTION 3 DIAGRAMS

3-1. BLOCK DIAGRAM

-1 -1 L (BTL) 6

PRE AMP IC801 (1/2) 5

LPF IC802 (1/2) 6 S801-1 LPF (80Hz) ON OFF
GAIN CONTROL AMP IC803 (1/2) 7 SWITCH Q101 DIFFERENTIAL AMP Q102 DRIVE AMP Q104 DRIVE AMP Q108 POWER AMP Q110

CN802 SPEAKER OUT

L VR801-1 LEVEL BIAS Q106,107

CNJ801 INPUT

DIFFERENTIAL AMP Q103

DRIVE AMP Q105

DRIVE AMP Q109

POWER AMP Q111

OVERLOAD DET Q112
PRE AMP IC801 (2/2) -2 -2 R 2 3

LPF IC802 (2/2) 1

GAIN CONTROL AMP IC803 (2/2) S801-2 LPF (80Hz) 1 SWITCH Q201 DIFFERENTIAL AMP Q202 DRIVE AMP Q204 DRIVE AMP Q208 POWER AMP Q210

OFFSET DET Q852,853

R VR801-2 LEVEL MUTE Q851 BIAS Q206,207

CNJ802 HI LEVEL

ON L R OFF

DIFFERENTIAL AMP Q203

DRIVE AMP Q205

DRIVE AMP Q209

POWER AMP Q211

OVERLOAD DET Q212

B+ (14.6V)
15V REG Q951,952, D953 DC DET 4 ICPROTECTOR Q802

B(-14.6V)

-15V REG Q953,954, D954 RECT D951,952 DC-DC CONVERTER TRANSFORMER T901

INVERTER Q903

ERROR LED DRIVE Q803 LD801 POWER/ PROTECTOR

B+ SWITCH Q902

F901 20A

CN801 +12V

B+ (26.2V) INVERTER Q904 10
POWER ON/OFF Q901 REM GND

B(-26.2V)

THERMAL Q801

Signal path

DC-DC CONVERTER IC901

: AUDIO

TH801 TH802
3-3. SCHEMATIC DIAGRAM Refer to page 10 for IC Block Diagram and Common Note on Schematic Diagrams.
R118 Q104 Q108 R124 Q107 Q110 R133 Q112 R126 R129 R130 R125 R120 R123 R128
C113 C119 R138 R137 CNJ802 C220 R239 R237 C219 R238 C120 R139 Q103 R119 C114 R122

C115 Q106

C116 R135 R127 Q111

C117 C118 C218 C217

C104 C857 C112 R131 R132 CN802 C107 Q101 R105 IC802 (1/2) C106 S801 C108 C208 C110 C210 C206 R206 R207 IC802 (2/2) R205 C209 IC803 (2/2) C211 Q201 R108 R208 R109 R209 R110 R210 VR801 R111 R211 C109 C111 IC803 (1/2) R112 R113 Q204 C213 R224 Q207 Q210 R213 Q203 Q202 R219 C214 R220 Q205 R212 R227 R215 R217 D202 R221 Q209 Q211 R236 R136 R223 R222 Q206 R225 R228 C215 R226 R229 C216 R230 R235 R214 R216 D201 R218 Q208 R233 Q212

C101 R101 C102 R102 C103

R106 R107 IC801 (1/2) R104

C858 CNJ801

C201 R201

R204 IC801 (2/2)

C203 C202 R202 R203 C207
D903 Q851 R851 R917 R852 R915 R853 IC851 D851 C851 D852 R918 R854 R920 R919 Q904 C908 R916 Q903 C907

T901 D951

R951 R952 L951 C951 C952 C953 C954 R956 R957 D952 C955 C956

R953 D953 D954 R958

C852 C958 R856

R857 Q853

IC B/D
Q902 R961 R914 C801 R905 Q901 CN801 F901 C901 R901 C902 L901 D901 R902 R903 R904 R803 Q801 D902 C904 C802 R814 R913 C909 R909 R912 R911 PL801 C805 R804

R910 C906

R859 C804 TH801 TH802

R809 R810

R812 R811
R862 R907 R802 D803 IC901 D802

R813 R806 R807 C803 Q803

R805 R808

Waveform

1V/DIV, 5sec/DIV 3.4Vp-p 15sec

Ver 1.1

SECTION 4 EXPLODED VIEW
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. 2 : nonflammable resistor. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice por tant le numro spcifi. NOTE: The mechanical parts with no reference number in the exploded views are not supplied. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. Color Indication of Appearance Parts Example : KNOB, BALANCE (WHITE). (RED) R R Parts Color Cabinets Color Accessories are given in the last of this parts list. The components identified by mark 0 or dotted line with mark. 0 are critical for safety. Replace only with part number specified. Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.
Semiconductor Location Ref. No. D101 D102 D201 D202 D801 D802 D803 D851 D852 D901 D902 D903 D904 D951 D952 D953 D954 IC801 IC802 IC803 IC851 IC901 LD801 Q101 Q102 Q103 Q104 Q105 Q106 Q107 Q108 Q109 Q110 Q111 Q112 Q201 Q202 Q203 Q204 Q205 Q206 Q207 Q208 Q209 Q210 Q211 Q212 Q801 Q802 Q803 Q851 Q852 Q853 Q901 Q902 Q903 Q904 Q951 Q952 Q953 Q954 Location G-10 G-9 G-7 G-6 F-11 E-11 F-11 E-10 F-5 D-10 D-11 D-9 D-8 B-7 B-6 D-4 D-3 E-3 F-3 H-3 E-10 D-8 F-14 F-6 G-10 G-9 G-10 G-9 I-10 H-9 H-10 H-9 J-10 J-9 G-9 G-5 G-6 G-6 G-7 G-6 I-6 H-6 H-7 H-6 J-7 J-6 G-5 E-11 E-12 F-13 E-10 E-12 E-12 D-10 D-10 B-9 B-10 C-4 C-4 C-4 C-4
A : B+ Line. B : B Line. Power voltage is dc 14.4V and fed with regulated dc power supply from +12V and REM terminals. Voltage is dc with respect to ground under no-signal condition. Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : AUDIO for printed wiring boards: X : parts extracted from the component side. : Pattern from the side which enables seeing.

IC Block Diagram IC901 PC494GS-T1

REF. REG. 10 9

0.1V ERROR 5 OSC

Ref. No. 6

Part No. 3-240-641-01 3-238-672-01 3-238-671-01 3-238-671-11 3-238-673-01
Description PLATE, BOTTOM PANEL, FRONT HEAT SINK (CHINESE MADE) HEAT SINK (JAPAN MADE) PANEL, REAR

Remark

Ref. No. F901
Part No. 7-685-545-14 3-240-642-01 3-225-183-01 3-225-184-01 3-912-432-01
Description SCREW +BTP 3X6 TYPE2 N-S HEAT SINK (SUB 2CH) SCREW (+PSW.TT.3XL) SCREW (+PS.TT.3X6) SCREW (+B)
A-3274-223-A AMP BOARD, COMPLETE 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
1-532-732-11 FUSE (BLADE TYPE) (AUTO FUSE) 20A