Sony XM-405EQX Marketing Specifications User manual

– 1 –
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
XM-405EQX
STEREO POWER AMPLIFIER
Other Specifications
Circuit system OTL (output transformerless) circuit
Pulse power supply
Inputs RCA pin jacks
High level input connector
Outputs Speaker terminals
Speaker impedance 2 – 8 Ω(stereo)
4 – 8 Ω(when used as a bridging
amplifier)
Maximum outputs 80 watts ×4 + 200 watts ×1 (at 4 Ω)
Rated outputs (supply voltage at 14.4V)
5 Speakers: 40 watts ×4 (20 Hz – 20 kHz, 0.04%
THD, at 4 Ω) + 100 watts ×1 (20 –
200 Hz, 0.04% THD, at 4 Ω)
50 watts ×4 (20 Hz – 20 kHz, 0.1%
THD, at 2 Ω) + 125 watts ×1 (20 –
200 Hz, 0.1% THD, at 2 Ω)
3 Speakers: 100 watts ×2 (20 Hz – 20 kHz, 0.1%
THD, at 4 Ω) + 100 watts ×1 (20 –
200 Hz, 0.04% THD, at 4 Ω)
Frequency response 5 Hz – 100 kHz ( dB)
Harmonic distortion 0.005% or less (at 1 kHz, 4 Ω)
Input level adjustment range
0.2 – 4.0 V (RCA pin jacks)
0.4 – 8.0 V (High level input)
High-pass filter 50 – 200 Hz, –12 dB/oct
Low-pass filter 50 – 200 Hz, –12 dB/oct
Low boost 0 – 10 dB (40 Hz)
Power requirements 12 V DC car battery
(negative ground)
Power supply voltage 10.5 – 16 V
Current drain at rated output: 33 A
Remote input: 1.5 mA
Dimensions Approx. 260 ×55 ×450 mm
(w/h/d) (10 1/4 ×2 1/4 ×17 3/4 in.) not
incl. projecting parts and controls
Mass Approx. 4.7 kg (10 lb. 6 oz.) not incl.
accessories
Supplied accessories Mounting screws (4),
Terminal cap (1)
Design and specifications are subject to change without notice.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS (US, Canadian model)
POWER OUTPUTAND TOTAL HARMONIC DISTORTION
40 watts/100 watts per channel minimum continuous average power into
4 ohms, 5 channels driven from 20 Hz to 20 kHz/200 Hz with no more
than 0.04% total harmonic distortion per Car Audio Ad Hoc Committee
standards.
+0
–3
MICROFILM
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

– 2 –
TABLE OF CONTENTS
1. GENERAL
Location and Function of Controls.......................................... 3
Connections ............................................................................. 4
2. DISASSEMBLY
2-1. Bottom Plate ....................................................................... 6
2-2. Panel (A)............................................................................. 6
2-3. Panel (B) ............................................................................. 7
2-4. AMP/Power Board ............................................................. 7
2-5. Control Panel Block ........................................................... 8
3. DIAGRAMS
3-1. Block Diagram –AMP Section–......................................... 9
3-2. Block Diagram –Power Section– ..................................... 11
3-3. Printed Wiring Board –AMP Section– ............................. 13
3-4. Schematic Diagram –AMP Section–................................ 15
3-5. Printed Wiring Board –Power Section– ........................... 17
3-6. Schematic Diagram –Power Section– .............................. 19
3-7. Printed Wiring Board –EQ Section– ................................ 21
3-8. Schematic Diagram –EQ Section– ................................... 21
3-9. Printed Wiring Board –Sub Section– ............................... 23
3-10. Schematic Diagram –Sub Section– .................................. 23
3-11. Printed Wiring Board –IND Section– .............................. 25
3-12. Schematic Diagram –IND Section– ................................. 26
3-13. Printed Wiring Board –LED Section– .............................. 27
3-14. Schematic Diagram –LED Section–................................. 27
4. EXPLODEDVIEWS
4-1. Heat Sink Section ............................................................. 28
4-2. Control Panel Section ....................................................... 29
5. ELECTRICAL PARTS LIST......................................... 30

– 3 –
SECTION 1
GENERAL This section is extracted
from instruction manual.

– 4 –

– 5 –

– 6 –
1 BTP 3x5
2 BTP 3x4
3 BTP 3x
4
4 bottom plate
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. BOTTOM PLATE
2-2. PANEL (A)
1 BTP 3x8
2 BTP 3x8
3 panel (A
)

1 BTP 3x12
2 BTP 3x12
3 BTP 3x12
7 BVTP 3x12
6 BVTP 3x12
8 AMP/POWER
board
4 fuse
(40A)
5 screw (3x8) (CZN-N)
2-3. PANEL (B)
2-4. AMP/POWER BOARD
– 7 –
2 BTP 3x8
1 BTP 3x8
3 panel (B
)

1 claws
2 claws
3 CNP806
4 CNP807
7 CNJ804
6 CNJ802
8 control panel block
5 CNP808
2-5. CONTROL PANEL BLOCK
– 8 –

XM-405EQX
3-1. BLOCK DIAGRAM — AMP SECTION —
– 9 – – 10 –
SECTION 3
DIAGRAMS
L
R
L
R
HIGH LEVEL
INPUT
R-CH
R-CH
R-CH
L+
L–
R+
R–
HIGH LEVEL
INPUT
SUB
WOOFER
LEVEL
CONTROL
R-CH
L+
L–
R+
R–
FRONT
L
R
REAR
3
2
3
2
IC101
IC301
5
6
IC501
3
2
IC501
R-CH
R-CH
INPUT
MODE
S501
FRONTF+R
F+R
IC502
57
FRONT
REAR E Q
THE SAME AS ABOVE BLOCK DIAGRAM
IC103
7
5
3
2
IC102
1
IC103
2
1
VR101-1,2
FILTER
S101-1
FILTER VR102-1
50Hz
OFF
HFP
FRONT EQ
VR103-1
200Hz
50Hz
EQ
200Hz
EQ
IC104 IC105
VR104-1
800Hz
800Hz
EQ
IC106
VR105-1
3.2kHz
3.2kHz
EQ
IC107
VR106-1
12.8kHz
SW102
DIRECT
VR107
LEVEL
12.8kHz
EQ
IC108
IC109
5
6
7
IC110
21
OFF
ON
MUTE
Q112
MUTE
Q312
MUTE
Q512
POWER
AMP
Q301-310
POWER
AMP
Q101-110
BUF
Q809, 812
BUF
Q808, 811
MUTE
OVER-C
OFFSET
OVER
CURRENT
DETECT
Q311
OFFSET
DETECT
Q818-820
OFFSET
DETECT
SUB
WOOFER
POWER
AMP
LED
SCAN
Q815-817
OVER
CURRENT
DETECT
Q111
1
1
7
1
INPUT
INPUT
INPUT
21
IC502
VR501
LEVEL
VR502
FILTER
VR503
LOW BOOST
LOW
BOOST
57
IC503
31
IC503
Q513
Q501-510
OVER
CURRENT
DETECT
Q511
IC801
3
1
1
3
16
|
21
O1
|
6
12
|
15
D1
|
4
EQUALIZER
INDICATOR
IC802
LD801-824
Q801-804
AC1
AC2 R-CH
6
4
(MATRIX)
CN804
L+
L– L
R–
R+ R
R-CH
R-CH
MONO-L
FRONT
SPEAKER
OUT
CN805
L+
L–
CN806
SUB+
SUB–
L
R–
R+ R
MONO-L
REAR
SPEAKER
OUT
SPEAKER
POWER
SECTION
CNJ801-1
CNJ801-2
CN802
CNJ801-3
CNJ801-4
CN803
CNJ801
CNJ809-1
CNJ809-2
1
2
US, Canadian
1
04
· Signal path
: AUDIO

– 11 – – 12 –
Ref. No. Location
D101 D-5
D102 D-4
D201 D-3
D202 D-2
D301 D-8
D302 D-7
D401 D-9
D402 D-8
D501 D-13
D502 C-12
D801 G-8
D803 F-2
IC101 H-4
IC301 H-3
IC501 H-12
IC801 E-3
IC902 E-1
Q101 C-4
Q102 D-4
Q103 C-5
Q104 C-4
Q105 A-4
Q106 A-4
Q107 C-5
Q108 C-4
Q109 B-5
Q110 B-4
Q111 A-4
Q112 D-4
Q201 D-2
Q202 D-2
Q203 D-3
Q204 C-2
Q205 A-2
Q206 A-2
Q207 C-3
Q208 C-2
Q209 A-3
Q210 B-2
Q211 A-2
Q212 E-1
Q301 D-7
Q302 D-7
Q303 C-8
Q304 C-6
• Semiconductor Location
(AMP Board)
THISNOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagrams
• All capacitors are in µF unless otherwise noted. pF: µµF
50WV or less are notindicated except for electrolytics and
tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
•2: nonflammable resistor.
•C: panel designation.
•U: B+ Line.
• Powervoltage is dc 14.4V andfed with regulated dc power
supply from +12V and REMOTE 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.
• Signal path.
F: AUDIO
for printed wiring boards
•X: parts extracted from the component side.
•r: Through hole.
•b: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts onthepatternface sideseen fromthe
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
Ref. No. Location
Q305 A-7
Q306 A-7
Q307 C-8
Q308 C-7
Q309 B-8
Q310 B-6
Q311 A-6
Q312 D-6
Q401 D-9
Q402 D-9
Q403 D-10
Q404 C-8
Q405 A-9
Q406 A-10
Q407 C-9
Q408 C-8
Q409 B-10
Q410 B-9
Q411 A-9
Q412 E-8
Q501 C-12
Q502 C-12
Q503 C-13
Q504 C-12
Q505 A-13
Q506 A-13
Q507 A-12
Q508 A-11
Q509 B-14
Q510 B-12
Q511 A-12
Q512 E-13
Q808 G-7
Q809 G-8
Q810 G-7
Q811 G-7
Q812 G-8
Q813 E-2
Q814 E-2
Q815 G-1
Q816 F-2
Q817 F-1
Q818 F-3
Q819 F-3
Q820 F-3
ZD801 F-2
3-2. BLOCK DIAGRAM — POWER SECTION —
XM-405EQX
VREF
TH801
TH802
LED
DRIVE
ON/OFF
CONT.
Q807
LD827
THERMAL
LED
DRIVE
Q806
LD826
OFFSET
LED
DRIVE
Q805
REG
Q902, 903
MUTE
CONTROL
Q813, 814
LD825
OVER
CURRENT
16
3
1 12
OSC PWM
CONT
9
10
VCC
SWITCHING REGULATER
IC901
Q905, 906
ON/OFF
DRIVE
Q907, 909
ON/OFF
DRIVE
Q908, 910
OFFSET
OVER-C
MUTE
F/R+15V
AMP
SECTION
IC902
Q901
B+
BATT
REM
CN801
F/R +B2
15V
REG
Q911
5V
REG
Q904
–15V
REG
Q912
+5V
F/R +15V
F/R +B2
F/R +B3
F/R –B3
F/R –B2
F/R –15V
SUB +B2
SUB +B3
SUB –B3
SUB –B2
T901
Q810
1
04

XM-405EQX
– 13 – – 14 –
3-3. PRINTEDWIRING BOARD — AMP SECTION — • Refer to page 12 for Semiconductor Location.
(Page 17)
(Page 17)
(Page 22)
(Page 23)
(Page 22)
(Page 27)
(Page 25)
(Page 17)

3-4. SCHEMATIC DIAGRAM — AMP SECTION —
– 15 – – 16 –
XM-405EQX
(Page 21)
(Page 27)
(Page 23)
(Page 24)
(Page 22)
(Page 26)
(Page 20)
(Page 20)
(Page 21)
(Page 22)

– 17 – – 18 –
3-5. PRINTEDWIRING BOARD — POWER SECTION —
XM-405EQX
Ref.No. Location
D802 G-5
D901 D-5
D902 D-4
D903 A-3
D904 A-2
D905 F-4
D906 F-4
D907 E-6
D908 D-6
D909 A-4
D910 A-4
D911 G-3
D912 F-3
D913 E-5
IC901 E-6
Q901 I-5
Q902 G-6
Q903 G-6
Q904 F-5
Q905 A-6
Q906 A-5
Q907 A-7
Q908 A-5
Q909 A-7
Q910 A-6
Q911 G-5
Q912 G-3
ZD901 H-6
ZD902 H-6
ZD903 G-4
ZD904 G-4
ZD907 F-5
• Semiconductor
Location
(Page 14)
(Page 14)
(Page 14)

– 19 – – 20 –
3-6. SCHEMATIC DIAGRAM — POWER SECTION —
XM-405EQX
• IC Block Diagram
IC901 µPC494GS
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
OSC
REF. REG.
ERROR
ERROR
0.1V
(Page 15) (Page 16)

– 21 – – 22 –
3-8. SCHEMATIC DIAGRAM — EQ SECTION —
3-7. PRINTEDWIRING BOARD — EQ SECTION —
XM-405EQX
Ref. No. Location
IC102 A-2
IC103 A-6
IC104 A-4
IC105 A-3
IC106 A-2
IC107 A-2
IC108 A-1
IC109 A-5
IC110 A-9
IC203 A-5
• Semiconductor
Location
(Page 15) (Page 15)
(Page 14)

– 23 – – 24 –
3-9. PRINTEDWIRING BOARD — SUB SECTION —
XM-405EQX
3-10. SCHEMATIC DIAGRAM — SUB SECTION —
(Page 15) (Page 15)
(Page 14)

– 25 – – 26 –
3-12. SCHEMATIC DIAGRAM — IND SECTION —3-11. PRINTEDWIRING BOARD — IND SECTION —
XM-405EQX
• IC Block Diagram
IC802 BA6820F
22 21 20 19 18 17 16 15 14 13 12
1234567891011
D4 D3 D2 D1 O6 O5 O4 O3 O2 O1 VCC
GND GND
OSC
H.C
MUTE
AC/DC
DC IN
CR2
AC2 IN
CR1
AC1 IN
PEAK HOLD LOGIC
COMPARATOR
SWITCHER
DRIVER
VREF. I/N
OSC
AMP AMP INPUT
INTERFACE
CLOCK
Ref. No. Location
(IC802) A-2
LD801 A-4
LD802 A-4
LD803 A-3
LD804 B-4
LD805 A-4
LD806 B-4
LD807 A-4
LD808 B-4
LD809 A-3
LD810 B-3
LD811 A-3
LD812 B-3
LD813 A-3
LD814 A-3
• Semiconductor Location
Ref.No. Location
( ) : SIDE A
LD815 A-2
LD816 B-2
LD817 A-2
LD818 B-2
LD819 A-2
LD820 B-2
LD821 A-1
LD822 A-1
LD823 A-1
LD824 B-1
(Q801) A-3
(Q802) A-1
(Q803) A-4
(Q804) A-1
(Page 15)
(Page 14)

– 27 –
3-14. SCHEMATIC DIAGRAM — LED SECTION —
3-13. PRINTED WIRING BOARD — LED SECTION —
Ref.No. Location
D880 B-2
D881 A-2
D882 A-1
(LD825) A-2
(LD826) A-2
(LD827) A-1
Q805 A-2
Q806 A-2
Q807 A-1
•Semiconductor
Location
( ) : SIDE B
XM-405EQX
(Page 15)
(Page 14)

– 28 –
SECTION 4
EXPLODEDVIEWS
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.
• Abbreviation
G: German model
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
Ref. No. Part No. Description Remark
4-1. HEAT SINK SECTION
N
N
Ref. No. Part No. Description Remark
• Accessories and packing materials and
hardware (# mark) list are given in
the last of this parts list.
Q909
Q907
Q908
Q910
D903
D904
D910
D909
Q409
Q410
Q309
Q310 Q109
Q110
Q209
Q21
0
TH802
Q510
Q509
1
1
2
3
4
5
6
6
7
9
10
not supplied
11
12
9
8
not supplied
not
supplied
not supplied
CN801
(including 9)
CN806
(including 9)
CN804
(including 9) CN805
(including 9)
13
#1 #1
F901
#1
#1
#1
#1
#4
#4
#4
#4
#4
#4
#2
#2
#3
#8
#14
#14 #9
AMP board
POWER
board
#3
#5
#3
#3
#3
#3
#3 #5 #5
#5
#5
#7
#5
#6
#6 #6
#6
1 3-013-266-01 SCREW, ORNAMENTAL
2 3-033-970-21 PLATE, ORNAMENTAL
*3 3-034-323-01 HEAT SINK (US,Canadian)
*3 3-034-323-11 HEAT SINK (AEP,UK,E,G)
4 3-035-756-01 PANEL (A)
5 3-035-757-01 PANEL (B)
6 3-933-766-01 SCREW (3X8) (CZN-N)
*7 3-035-965-01 HEAT SINK, SUB
*8 A-3317-742-A AMP/POWERBOARD,COMPLETE(US,Canadian)
*8 A-3317-743-A AMP/POWER BOARD, COMPLETE (AEP,UK,E,G)
*9 3-912-432-01 SCREW M4X8
*10 3-035-964-01 PLATE, BOTTOM
11 3-034-325-01 PLATE, ORNAMENTAL
12 1-790-766-11 CABLE, PARALLEL (23P)
*13 3-035-968-01 BRACKET (CHASSIS)
CN801 1-694-511-11 TABLE, TERMINAL (3P) (REMOTE/+12V/GND)
CN804 1-694-512-11 TABLE, TERMINAL (4P) (FRONT SPEAKER OUT)
CN805 1-694-512-11 TABLE, TERMINAL (4P) (REAR SPEAKER OUT)
CN806 1-694-510-11 TABLE, TERMINAL(2P)(SUBWOOFER SPEAKER
OUT)
D903 8-719-023-35 DIODE FMG-32S
D904 8-719-023-34 DIODE FMG-32R
D909 8-719-210-30 DIODE F10P20F(R)
D910 8-719-210-38 DIODE F10P20FR
F901 1-533-743-11 FUSE (BLADE TYPE) (AUTO FUSE) (40A)
Q109 8-729-024-80 TRANSISTOR 2SC5100-Y
Q110 8-729-024-77 TRANSISTOR 2SA1908-Y
Q209 8-729-024-80 TRANSISTOR 2SC5100-Y
Q210 8-729-024-77 TRANSISTOR 2SA1908-Y
Q309 8-729-024-80 TRANSISTOR 2SC5100-Y
Q310 8-729-024-77 TRANSISTOR 2SA1908-Y
Q409 8-729-024-80 TRANSISTOR 2SC5100-Y
Q410 8-729-024-77 TRANSISTOR 2SA1908-Y
Q509 8-729-010-97 TRANSISTOR 2SC3856
Q510 8-729-010-98 TRANSISTOR 2SA1492M-OPY
Q907 8-729-030-72 FET MTAJ50N05HD
Q908 8-729-030-72 FET MTAJ50N05HD
Q909 8-729-030-72 FET MTAJ50N05HD
Q910 8-729-030-72 FET MTAJ50N05HD
TH802 1-809-664-51 THERMISTOR, POSITIVE

– 29 –
4-2. CONTROL PANEL SECTION
Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark
51
52 53
54
55
56
57
58
59
60
61 62
63
64 65
53
52
52
57
#11
#11
#13 #13
#13
#12
#10
#10
#10
#10
#10
#10
supplied with RV
supplied with RV
supplied with RV
51 3-034-324-01 PLATE, ORNAMENTAL
52 3-035-767-01 KNOB (VR)
53 3-035-768-01 KNOB (SW)
*54 3-035-969-01 BRACKET (CONTROL BLOCK)
*55 3-035-967-01 BRACKET (SUB)
*56 1-672-789-11 SUB BOARD
*57 3-035-966-01 BRACKET (EQ)
*58 A-3317-656-A EQ BOARD, COMPLETE
59 3-035-765-01 LENS (A)
*60 1-672-784-11 LED BOARD
61 1-790-765-11 CABLE, PARALLEL (5P)
62 3-035-766-01 LENS (B)
*63 1-672-783-11 IND BOARD
64 1-790-764-11 CABLE, PARALLEL (4P)