Read Sony XM-222MK2 Service Manual online
10
10
XM-222MK2
IC901 µPC494GS-T1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OSC
REF. REG.
ERROR
ERROR
0.1V
• IC Block Diagram
• Semiconductor
Location
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
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
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
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
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion 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.
D101
G-10
D102
G-9
D201
G-7
D202
G-6
D801
F-11
D802
E-11
D803
F-11
D851
E-10
D852
F-5
D901
D-10
D902
D-11
D903
D-9
D904
D-8
D951
B-7
D952
B-6
D953
D-4
D954
D-3
IC801
E-3
IC802
F-3
IC803
H-3
IC851
E-10
IC901
D-8
LD801
F-14
Q101
F-6
Q102
G-10
Q103
G-9
Q104
G-10
Q105
G-9
Q106
I-10
Q107
H-9
Q108
H-10
Q109
H-9
Q110
J-10
Q111
J-9
Q112
G-9
Q201
G-5
Q202
G-6
Q203
G-6
Q204
G-7
Q205
G-6
Q206
I-6
Q207
H-6
Q208
H-7
Q209
H-6
Q210
J-7
Q211
J-6
Q212
G-5
Q801
E-11
Q802
E-12
Q803
F-13
Q851
E-10
Q852
E-12
Q853
E-12
Q901
D-10
Q902
D-10
Q903
B-9
Q904
B-10
Q951
C-4
Q952
C-4
Q953
C-4
Q954
C-4
Ref. No.
Location
SECTION 4
EXPLODED VIEW
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.
Some delay should be anticipated
when ordering these items.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this parts list.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
R
R
1
3-240-641-01 PLATE, BOTTOM
2
3-238-672-01 PANEL, FRONT
3
3-238-671-01 HEAT SINK (CHINESE MADE)
3
3-238-671-11 HEAT SINK (JAPAN MADE)
4
3-238-673-01 PANEL, REAR
5
A-3274-223-A AMP BOARD, COMPLETE
6
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
7
7-685-545-14 SCREW +BTP 3X6 TYPE2 N-S
8
3-240-642-01 HEAT SINK (SUB 2CH)
9
3-225-183-01 SCREW (+PSW.TT.3XL)
10
3-225-184-01 SCREW (+PS.TT.3X6)
11
3-912-432-01 SCREW (+–B)
0 F901
1-532-732-11 FUSE (BLADE TYPE) (AUTO FUSE) 20A
The components identified by
mark 0 or dotted line with mark.
0 are critical for safety.
Replace only with part number
specified.
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.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
1
2
3
4
5
7
7
10
11
10
9
F901
8
6
6
6
8
9
6
11
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ver 1.1
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