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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 × 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 10.5 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. 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 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
R103
R106 R107 IC801 (1/2) R104
C858 CNJ801
R861
R860
C853
C105
C201 R201
C205
R204 IC801 (2/2)
C203 C202 R202 R203 C207
C855
C204
C212
R231
R232
R855
D903 Q851 R851 R917 R852 R915 R853 IC851 D851 C851 D852 R918 R854 R920 R919 Q904 C908 R916 Q903 C907
T901 D951
Q951
R954
Q952
R955
R951 R952 L951 C951 C952 C953 C954 R956 R957 D952 C955 C956
R953 D953 D954 R958
C957
C852 C958 R856
R858
D904
Q953
R959
Q954
R960
R857 Q853
Q852
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
C959
R859 C804 TH801 TH802
R809 R810
R812 R811
LD801
R801
D801
R906
R862 R907 R802 D803 IC901 D802
Q802
R813 R806 R807 C803 Q803
C905
C903
R805 R808
· Waveform
1
1V/DIV, 5µsec/DIV 3.4Vp-p 15µsec
9
9
IC901
5
XM-222MK2
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 µF unless otherwise noted. pF: µµF 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 identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce por tant le numéro spécifié. 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 Cabinet's 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 identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le numéro spécifié.
· 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.
5
4
8 3 11
10 10
6
11 9 2 6
F901
8
6 1 · IC Block Diagram IC901 µPC494GS-T1
16 15 14 13 REF. REG. 12 11 10 9
9 6
ERROR
7
0.1V ERROR 1 2 3 4 5 OSC
7
6
7 8
Ref. No. 1 2 3 3 4 5 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. 7 8 9 10 11 0 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)
Remark
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
10
10