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ÿþXM-222MK2 SERVICE MANUAL Canadian Model AEP Model Ver 1.1 2002. 03 UK Model E Model SPECIFICATIONS Circuit system OTL (output transformerless) circuit Pulse power supply Inputs RCA pin jacks High level input connector Input level adjustment range 0.3  6 V (RCA pin jacks), 0.6  12 V (High level input) Outputs Speaker terminals Speaker impedance 2  8 &! (stereo) 4  8 &! (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 &!) +0 Frequency response 5 Hz  80 kHz ( 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 10.5  16 V Current drain at rated output : 12 A (4 &!, 35 W × 2) Remote input : 1.5 mA Dimensions Approx. 205 × 55 × 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. STEREO POWER AMPLIFIER 9-873-557-02 Sony Corporation 2002C0400-1 e Vehicle Company © 2002. 03 Published by Sony Engineering Corporation 1 XM-222MK2 SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM PRE AMP LPF IC801 (1/2) GAIN CONTROL IC802 (1/2) -1 AMP -1 6 CN802 IC803 (1/2) 7 5 7 L (BTL) SPEAKER 5 OUT DIFFERENTIAL 5 SWITCH DRIVE AMP DRIVE AMP POWER AMP 7 AMP Q101 Q104 Q108 6 Q110 Q102 S801-1 LPF L (80Hz) VR801-1 ON BIAS LEVEL Q106,107 OFF CNJ801 OVERLOAD INPUT DIFFERENTIAL DET DRIVE AMP DRIVE AMP POWER AMP AMP Q112 Q105 Q109 Q111 Q103 PRE AMP BTL LPF OFFSET IC801 (2/2) GAIN CONTROL DET IC802 (2/2) -2 AMP Q852,853 3 -2 IC803 (2/2) 1 3 1 R 2 DIFFERENTIAL 3 SWITCH DRIVE AMP DRIVE AMP POWER AMP 1 AMP Q201 Q204 Q208 2 Q210 Q202 S801-2 LPF R (80Hz) VR801-2 CNJ802 ON BIAS LEVEL HI LEVEL Q206,207 L R OFF MUTE Q851 DIFFERENTIAL OVERLOAD DRIVE AMP DRIVE AMP POWER AMP AMP DET Q205 Q209 Q211 Q203 Q212 15V REG B+ Q951,952, (14.6V) D953 PROTECTOR Q802 DC DET 4 2 -15V REG IC851 B- Q953,954, (-14.6V) D954 F901 CN801 DC-DC CONVERTER 20A RECT B+ TRANSFORMER D951,952 12 SWITCH +12V T901 INVERTER 9 Q902 Q903 1 LD801 B+ POWER/ ERROR 2 (26.2V) PROTECTOR POWER ON/OFF LED INVERTER 10 Q901 3 DRIVE Q904 Q803 B- REM (-26.2V) 15 ERROR GND 16 THERMAL 13 14 Q801 " Signal path : AUDIO DC-DC CONVERTER IC901 TH801 TH802 D802 77 XM-222MK2 3-3. SCHEMATIC DIAGRAM " Refer to page 10 for IC Block Diagram and Common Note on Schematic Diagrams. D101 R118 C856 R114 R116 Q108 Q104 C113 Q107 R124 R133 C119 R138 Q110 Q112 R126 R129 R137 C120 R139 R119 R122 C115 Q102 CNJ802 Q103 Q106 R130 C114 R128 C220 R239 R125 R120 C116 R123 R237 C219 R238 R135 Q105 Q111 R127 R115 Q109 R117 R121 D102 C854 C104 C857 C112 R131 R132 R103 CN802 C101 C107 Q101 R101 C109 C102 R102 R105 D201 R218 C103 R106 R107 C111 R214 R216 IC802 (1/2) IC803 (1/2) C106 Q208 IC801 (1/2) Q204 R112 S801 R860 C853 C105 R104 C213 C858 Q207 R861 VR801 R113 R224 R233 C108 R108 R109 R110 R111 C110 CNJ801 Q210 Q212 C208 C210 R208 R209 R210 R211 R226 R229 R213 R219 R222 C215 Q202 C205 R204 C216 C201 C206 R201 Q203 Q206 R230 IC801 (2/2) IC803 (2/2) C214 R235 R228 IC802 (2/2) R225 R206 R207 C211 Q201 R205 R220 R223 C203 C209 C202 R202 C207 Q205 R203 R236 R136 Q211 R227 R212 R215 R217 C855 C204 R221 Q209 D202 C212 R231 R232 R855 Q951 Q952 R954 R955 T901 D903 D951 R851 Q851 R917 C957 R951 R952 R953 R852 Q903 C907 C951 R915 C955 R916 L951 C953 D953 R853 D852 C956 C952 C954 D954 C908 IC851 R918 R919 C852 R858 R854 Q904 D851 R957 R958 C958 R956 R856 C851 R920 D952 D904 R959 R960 R857 Q953 Q954 Q853 Q852 IC B/D Q902 R961 C959 R914 C804 R812 R859 R809 LD801 C801 R801 D801 TH801 TH802 R905 R811 R810 R906 R862 Q901 Q802 CN801 R802 R907 IC901 D803 D802 F901 L901 D902 C901 D901 R813 C904 R901 R902 C909 C802 R806 R909 R807 R803 C903 R805 C902 R903 R904 R913 Q801 R814 R912 C905 C803 Q803 R911 R808 C805 PL801 R804 " Waveform 1V/DIV, 5µsec/DIV 1 3.4Vp-p 15µsec IC901 5 99 C117 C118 C218 C217 C906 R910 XM-222MK2 Ver 1.1 SECTION 4 EXPLODED VIEW " Semiconductor NOTE: THIS NOTE IS COMMON FOR PRINTED WIRING Location " The mechanical parts with no reference " Color Indication of Appearance Parts The components identified by BOARDS AND SCHEMATIC DIAGRAMS. number in the exploded views are not supplied. Example : mark 0 or dotted line with mark. Ref. No. Location (In addition to this, the necessary note is " Items marked  * are not stocked since KNOB, BALANCE (WHITE) ... (RED) 0 are critical for safety. D101 G-10 printed in each block.) they are seldom required for routine service. R R Replace only with part number D102 G-9 Some delay should be anticipated Parts Color Cabinet s Color specified. D201 G-7 for schematic diagram: when ordering these items. " Accessories are given in the last of this parts list. D202 G-6 " All capacitors are in µF unless otherwise noted. pF: µµF Les composants identifiés par une D801 F-11 50 WV or less are not indicated except for electrolytics D802 E-11 marque 0 sont critiques pour and tantalums. D803 F-11 " All resistors are in &! and 1/4 W or less unless otherwise la sécurité. D851 E-10 specified. Ne les remplacer que par une piéce D852 F-5 " 2 : nonflammable resistor. portant le numéro spécifié. D901 D-10 Note: Note: D902 D-11 The components identi- Les composants identifiés par D903 D-9 fied by mark 0 or dotted une marque 0 sont critiques D904 D-8 line with mark 0 are criti- pour la sécurité. D951 B-7 D952 B-6 cal for safety. Ne les remplacer que par une D953 D-4 Replace only with part piéce portant le numéro D954 D-3 spécifié. number specified. " A : B+ Line. IC801 E-3 " B : B Line. IC802 F-3 4 " Power voltage is dc 14.4V and fed with regulated dc power 5 IC803 H-3 supply from +12V and REM terminals. IC851 E-10 " Voltage is dc with respect to ground under no-signal IC901 D-8 condition. 6 LD801 F-14 " Voltages are taken with a VOM (Input impedance 10 M&!). 8 10 Voltage variations may be noted due to normal produc- 10 Q101 F-6 tion tolerances. 11 Q102 G-10 " Waveforms are taken with a oscilloscope. 3 Q103 G-9 Voltage variations may be noted due to normal produc- Q104 G-10 tion tolerances. Q105 G-9 " Circled numbers refer to waveforms. Q106 I-10 " Signal path. Q107 H-9 F : AUDIO Q108 H-10 Q109 H-9 for printed wiring boards: 11 Q110 J-10 " X : parts extracted from the component side. 8 Q111 J-9 " : Pattern from the side which enables seeing. 9 Q112 G-9 Q201 G-5 2 6 Q202 G-6 F901 Q203 G-6 Q204 G-7 Q205 G-6 Q206 I-6 Q207 H-6 9 Q208 H-7 6 Q209 H-6 1 6 Q210 J-7 " IC Block Diagram Q211 J-6 Q212 G-5 Q801 E-11 IC901 µPC494GS-T1 Q802 E-12 Q803 F-13 Q851 E-10 16 15 14 13 12 11 10 9 Q852 E-12 7 REF. REG. Q853 E-12 ERROR Q901 D-10 Q902 D-10 Q903 B-9 7 Q904 B-10 0.1V Q951 C-4 OSC ERROR Q952 C-4 Q953 C-4 1 2 3 4 5 6 7 8 Q954 C-4 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1 3-240-641-01 PLATE, BOTTOM 7 7-685-545-14 SCREW +BTP 3X6 TYPE2 N-S 2 3-238-672-01 PANEL, FRONT 8 3-240-642-01 HEAT SINK (SUB 2CH) 3 3-238-671-01 HEAT SINK (CHINESE MADE) 9 3-225-183-01 SCREW (+PSW.TT.3XL) 3 3-238-671-11 HEAT SINK (JAPAN MADE) 10 3-225-184-01 SCREW (+PS.TT.3X6) 4 3-238-673-01 PANEL, REAR 11 3-912-432-01 SCREW (+ B) 5 A-3274-223-A AMP BOARD, COMPLETE 0 F901 1-532-732-11 FUSE (BLADE TYPE) (AUTO FUSE) 20A 6 7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3 10 10

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