Sony XM-554ZR Service Manual ▷ View online
13
13
XM-554ZR
XM-554ZR
• Refer to page 10 for Waveform.
3-4. SCHEMATIC DIAGRAM — AMP SECTION (2/2) — • Refer to page 14 for IC Block Diagram.
(Page 12)
IC B/D
F901
R912
F902
R919
C909
R918
R917
R916
R934
C911
R809
C904
R911
C906
C907
C903
C901
R903
R902
R901
C917
R805
C805
R928
R931
R920
R921
R922
R923
R924
R925
R929
R930
C913
C914
C817
C818
C819
C821
C820
C822
C823
R814
R815
C824
C825
C826
C827
R810
C811
C813
R811
C814
C915
C916
R932
R933
R914
C910
C918
R942
L901
R940
C920
R937
C921
R936
R935
C919
C908
R904
Q902
Q901
C902
R905
C812
R813
R812
D803
D804
Q807
Q808
Q913
Q911
Q910
Q912
Q908
Q909
R927
R926
R807
Q812
Q811
Q809
Q810
C810
L804
L805
L802
L803
T901
TH903
TH902
TH901
CN905
D802
Q802
D801
R808
C912
L801
D805
D806
Q905
IC902
R915
D904
Q906
Q907
D905
R941
R938
Q915
Q914
R939
D901
D902
R909
R908
R907
Q904
R947
IC903
R910 C905
R906
Q903
LED901
D807
Q803
Q804
Q805
Q806
14
14
XM-554ZR
XM-554ZR
• IC Block Diagram
IC903 µPC494GS (AMP BOARD (2/2))
OSC
REF 5V
ERROR
ERROR
0.1V
Q1
Q2
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
NON
INV
VREF
VCC
C2
E1
E2
OUT
+IN
-IN
COMPEN
CT
RT
C1
GND
TIME
15
XM-554ZR
SECTION 4
EXPLODED VIEWS
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
4-1. HEAT SINK (MAIN) SECTION
R
Ref. No.
Part No.
Description
Remark
R
1
2-663-766-01 PLATE (TOP), ORNAMENTAL
2
2-663-767-01 PLATE (SIDE), ORNAMENTAL
0 F901
1-576-256-11 FUSE (BLADE TYPE) (AUTO FUSE) (25A)
0 F902
1-576-256-11 FUSE (BLADE TYPE) (AUTO FUSE) (25A)
#1
7-685-146-19 SCREW +P 3X8 TYPE2 NON-SLIT
#2
7-685-545-19 SCREW +BTP 3X6 TYPE2 N-S
F901
F902
not supplied
not supplied
#1
#1
#1
#1
#1
#2
#2
#2
1
2
Ver. 1.1
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.
16
XM-554ZR
4-2. AMP BOARD SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
A-1176-995-A AMP BOARD, COMPLETE
52
3-225-183-02 SCREW (+PSW.TT.3XL)
53
2-663-768-01 PANEL (FRONT)
54
3-912-432-11 SCREW (+–B)
D803
6-501-466-01 DIODE F1B2CCI
D804
6-501-467-01 DIODE F1B2CAI
Q110
6-551-502-01 TRANSISTOR KTD998
Q111
6-551-503-01 TRANSISTOR KTB778
Q210
6-551-502-01 TRANSISTOR KTD998
Q211
6-551-503-01 TRANSISTOR KTB778
Q306
8-729-041-66 TRANSISTOR 2SC4015TV2
Q311
6-551-503-01 TRANSISTOR KTB778
Q406
8-729-041-66 TRANSISTOR 2SC4015TV2
Q410
6-551-502-01 TRANSISTOR KTD998
Q910
6-551-506-01 FET IRFI3205
Q911
6-551-506-01 FET IRFI3205
Q912
6-551-506-01 FET IRFI3205
Q913
6-551-506-01 FET IRFI3205
#1
7-685-146-19 SCREW +P 3X8 TYPE2 NON-SLIT
#1
#1
#1
51
52
52
52
52
52
53
54
54
54
52
52
not supplied
not supplied
Q911,Q910,Q912,Q913
Q111,Q110,
Q211,Q210
Q211,Q210
Q311,Q306,Q406,Q410
D804,D803
not supplied
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