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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 0.3 ­ 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 Ч 2 (at 4 ) 222 W (BTL, at 4 ) Rated outputs (supply voltage at 14.4 V) 35 W Ч 2 (20 Hz ­ 20 kHz, 0.04% THD, at 4 ) 40 W Ч 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 10.5 ­ 16 V Current drain at rated output : 12 A (4 , 35 W Ч 2) Remote input : 1.5 mA Dimensions Approx. 205 Ч 55 Ч 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 1 XM-222MK2 SECTION 3 DIAGRAMS 3-1. BLOCK DIAGRAM -1 -1 L (BTL) 6 PRE AMP IC801 (1/2) 7 5 5 LPF IC802 (1/2) 7 5 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 3 1 2 3 LPF IC802 (2/2) 1 GAIN CONTROL AMP IC803 (2/2) 3 2 S801-2 LPF (80Hz) 1 SWITCH Q201 DIFFERENTIAL AMP Q202 DRIVE AMP Q204 DRIVE AMP Q208 POWER AMP Q210 OFFSET DET Q852,853 BTL 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 IC851 2 PROTECTOR Q802 B(-14.6V) -15V REG Q953,954, D954 RECT D951,952 DC-DC CONVERTER TRANSFORMER T901 INVERTER Q903 9 12 1 ERROR 2 3 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) ERROR 15 16 THERMAL Q801 13 14 · Signal path DC-DC CONVERTER IC901 : AUDIO TH801 TH802 D802 7 7 XM-222MK2 3-3. SCHEMATIC DIAGRAM · Refer to page 10 for IC Block Diagram and Common Note on Schematic Diagrams. R114 R116 D101 R118 Q104 Q108 R124 Q107 Q110 R133 Q112 R126 R129 R130 R125 R120 R123 R128 C856 C113 C119 R138 R137 CNJ802 C220 R239 R237 C219 R238 C120 R139 Q103 R119 C114 R122 Q102 C115 Q106 C116 R135 R127 Q111 Q105 R115 C117 C118 C218 C217 R117 D102 R121 Q109 C854 C104 C857 C112 R131 R132 CN802 C