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XM-222MK2
SERVICE MANUAL
Canadian Model
AEP Model
UK Model
E Model
Ver 1.1 2002. 03
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 Ω (stereo)
4 – 8 Ω (when used as a bridging amplifier)
Maximum outputs
100 W × 2 (at 4 Ω)
222 W (BTL, at 4 Ω)
Rated outputs (supply voltage at 14.4 V)
35 W × 2 (20 Hz – 20 kHz, 0.04% THD, at 4 Ω)
40 W × 2 (20 Hz – 20 kHz, 0.1% THD, at 2 Ω)
80 W (Monaural) (20 Hz – 20 kHz, 0.1% THD,
at 4 Ω)
Frequency response
5 Hz – 80 kHz ( +0
–3 dB)
Harmonic distortion
0.005% or less (at 1 kHz, 4 Ω, 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 Ω, 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
© 2002. 03
e Vehicle Company
Published by Sony Engineering Corporation
1
XM-222MK2
SECTION 3
DIAGRAMS
3-1. BLOCK DIAGRAM
PRE AMP
IC801 (1/2)
-1
LPF
IC802 (1/2)
GAIN CONTROL
AMP
IC803 (1/2)
6
-1
L (BTL)
7
5
7
5
5
6
S801-1
LPF
(80Hz)
7
DIFFERENTIAL
AMP
Q102
SWITCH
Q101
DRIVE AMP
Q104
DRIVE AMP
Q108
BIAS
Q106,107
OFF
CNJ801
INPUT
DIFFERENTIAL
AMP
Q103
PRE AMP
IC801 (2/2)
LPF
IC802 (2/2)
1
3
1
2
3
2
S801-2
LPF
(80Hz)
CNJ802
HI LEVEL
R
B(-14.6V)
1
DIFFERENTIAL
AMP
Q202
SWITCH
Q201
DRIVE AMP
Q204
DRIVE AMP
Q208
BTL
POWER AMP
Q210
R
BIAS
Q206,207
OFF
DIFFERENTIAL
AMP
Q203
DRIVE AMP
Q205
DRIVE AMP
Q209
OVERLOAD
DET
Q212
POWER AMP
Q211
15V REG
Q951,952,
D953
PROTECTOR
Q802
DC DET
4 IC851 2
-15V REG
Q953,954,
D954
RECT
D951,952
DC-DC CONVERTER
TRANSFORMER
T901
INVERTER
Q903
1
ERROR
INVERTER
Q904
LD801
POWER/
PROTECTOR
2
10
F901
20A
B+
SWITCH
Q902
12
9
B+
(26.2V)
B(-26.2V)
OVERLOAD
DET
Q112
POWER AMP
Q111
OFFSET
DET
Q852,853
MUTE
Q851
B+
(14.6V)
DRIVE AMP
Q109
VR801-2
LEVEL
ON
L
DRIVE AMP
Q105
GAIN CONTROL
AMP
IC803 (2/2)
3
-2
R
POWER AMP
Q110
L
VR801-1
LEVEL
ON
-2
CN802
SPEAKER
OUT
LED
DRIVE
Q803
3
+12V
POWER
ON/OFF
Q901
REM
15
ERROR
GND
16
13
THERMAL
Q801
14
• Signal path
: AUDIO
DC-DC CONVERTER
IC901
TH801
D802
7
CN801
7
TH802
XM-222MK2
3-3. SCHEMATIC DIAGRAM • Refer to page 10 for IC Block Diagram and Common Note on Schematic Diagrams.
R114
R116
R118
D101
C856
Q108
Q104
C113
Q107
R124
C119 R138
R133
Q110
R137
C120 R139
R122
R119
Q102
CNJ802
Q103
R129
R130
R125
R120
C219 R238
R126
Q106
C114
C220 R239
R237
C115
Q112
R128
C116
R123
R135
Q105
R127
C117
C118
C218
C217
R115
C854
R117
Q109
R121
D102
Q111
C104
C857
C112
CN802
C107
R101
C102 R102
C103
Q101
R105
R106 R107
IC802 (1/2)
IC801 (1/2)
C853
C105
C108
R108
C110
R109
VR801
R110
R208
R209
R111
R210
R211
R213
Q207
R224
C211
R205 C209
Q212
R229
C216
R230
R225
Q201
R226
Q206
C214
R235
R228
R223
R220
C207
Q205
R203
R227
R212
C855
R233
C215
R222
R219
Q202
Q203
IC803 (2/2)
IC802 (2/2)
C203
C202 R202
Q208
Q204
C206
R206 R207
R218
C213
R113
R204
IC801 (2/2)
D201
Q210
C210
C208
C205
R201
R216
R112
S801
R104
CNJ801
C201
R214
C111
IC803 (1/2)
R217
R215
C204
R221
D202
C212
R236
Q211
R136
Q209
R231
R232
R855
Q951
T901
D903
Q851
R917
R852
R853
Q903
R915
Q952
R916
R918
R919
R951 R952
C907
L951
C951
R955
C952
C908
R854
Q904
C851
C955
C954
C956
D953
D954
R956 R957
R920
C957
R953
C953
D852
IC851
D851
R954
D951
R851
C852
R958
C958
R858
R856
D952
D904
R959
Q953
Q954
R960
R857
Q853
Q852
IC B/D
Q902
R961
R914
C801
R801
R905
R859 C804
D801
TH801
R809
R906
CN801
R862
R901
IC901
D803
D802
D902
R813
C904
R902
C909
C802
R806
R909
C902
R903
R904
R803
Q801
R913
R814
R912
C905
C903
R805
R911
PL801
R811
R802
L901
D901
C901
C959
LD801
Q802
R907
F901
R812
TH802
R810
Q901
R910
R860
C109
C106
C906
R861
R132
R103
C101
C858
R131
R807
C803
Q803
R808
C805
R804
• Waveform
1
1V/DIV, 5µsec/DIV
3.4Vp-p
15µsec
9
9
IC901
5
XM-222MK2
Ver 1.1
SECTION 4
EXPLODED VIEW
• Semiconductor
Location
Ref. No.
D101
D102
D201
D202
D801
D802
D803
D851
D852
D901
D902
D903
D904
D951
D952
D953
D954
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
IC801
IC802
IC803
IC851
IC901
E-3
F-3
H-3
E-10
D-8
LD801
F-14
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
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
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.
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 Ω and 1/4 W or less unless otherwise
specified.
• 2 : nonflammable resistor.
• 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.
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 components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part
number specified.
• 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 MΩ).
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
4
5
8
6
10
10
11
3
for printed wiring boards:
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
11
8
9
2
6
F901
9
6
6
1
• IC Block Diagram
IC901 µPC494GS-T1
16
15
14
13
12
11
10
9
7
REF. REG.
ERROR
7
0.1V
OSC
ERROR
1
2
3
4
5
6
7 8
Ref. No.
10
Part No.
Description
1
2
3
3
4
3-240-641-01
3-238-672-01
3-238-671-01
3-238-671-11
3-238-673-01
PLATE, BOTTOM
PANEL, FRONT
HEAT SINK (CHINESE MADE)
HEAT SINK (JAPAN MADE)
PANEL, REAR
5
6
A-3274-223-A AMP BOARD, COMPLETE
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
10
Remark
Ref. No.
7
8
9
10
11
0 F901
Part No.
Description
7-685-545-14
3-240-642-01
3-225-183-01
3-225-184-01
3-912-432-01
SCREW +BTP 3X6 TYPE2 N-S
HEAT SINK (SUB 2CH)
SCREW (+PSW.TT.3XL)
SCREW (+PS.TT.3X6)
SCREW (+–B)
1-532-732-11 FUSE (BLADE TYPE) (AUTO FUSE) 20A
Remark