Sony XM-405-EQX Service manual

XM-405EQX

SERVICE MANUAL

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US, Canadian model)

POWER OUTPUT AND 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.

US Model

Canadian Model

AEP Model

UK Model

E Model

Other Specifications

Circuit system OTL (output transformerless) circuit

Inputs RCA pin jacks

Outputs Speaker terminals Speaker impedance 2 – 8 Ω (stereo)

Maximum outputs 80 watts × 4 + 200 watts × 1 (at 4 Ω) Rated outputs (supply voltage at 14.4 V)

5 Speakers: 40 watts × 4 (20 Hz – 20 kHz, 0.04%

3 Speakers: 100 watts × 2 (20 Hz – 20 kHz, 0.1%

Frequency response 5 Hz – 100 kHz ( dB) Harmonic distortion 0.005% or less (at 1 kHz, 4 Ω)

Pulse power supply

High level input connector

4 – 8 Ω (when used as a bridging amplifier)

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)

THD, at 4 Ω) + 100 watts × 1 (20 – 200 Hz, 0.04% THD, at 4 Ω)

+0 –3

Input level adjustment range

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

Power supply voltage 10.5 – 16 V Current drain at rated output: 33 A

Dimensions Approx. 260 × 55 × 450 mm

Mass Approx. 4.7 kg (10 lb. 6 oz.) not incl.

Supplied accessories Mounting screws (4),

Design and specifications are subject to change without notice.

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.

0.2 – 4.0 V (RCA pin jacks)

0.4 – 8.0 V (High level input)

(negative ground)

Remote input: 1.5 mA

(w/h/d) (10 incl. projecting parts and controls

accessories

Terminal cap (1)

1/4 × 2 1/4 × 17 3/4 in.) not

MICROFILM

STEREO POWER AMPLIFIER

– 1 –

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. EXPLODED VIEWS

4-1. Heat Sink Section ............................................................. 28

4-2. Control Panel Section ....................................................... 29

5. ELECTRICAL PARTS LIST.........................................30

– 2 –

SECTION 1

GENERAL

This section is extracted from instruction manual.

– 3 –

– 4 –

– 5 –

SECTION 2

)

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. BOTTOM PLATE

BTP 3x4

BTP 3x5

bottom plate

BTP 3x

2-2. PANEL (A)

BTP 3x8

panel (A

BTP 3x8

– 6 –

2-3. P ANEL (B)

)

2-4. AMP/POWER BOARD

screw (3x8) (CZN-N)

BTP 3x8

panel (B

AMP/POWER

board

1 BTP 3x12

BVTP 3x12

BTP 3x12

(40A)

– 7 –

fuse

2-5. CONTROL PANEL BLOCK

claws

control panel block

claws

CNP807

CNJ804

CNP806

CNJ802

CNP808

– 8 –

XM-405EQX

SECTION 3

DIAGRAMS

3-1. BLOCK DIAGRAM — AMP SECTION —

CNJ801-1

INPUT

FRONT

HIGH LEVEL

INPUT

CNJ801-2

CN802

R-CH

L+ L–

R+ R–

R-CH

3 2

IC101

R-CH

FRONT EQ

R-CH

CN804 L+ L–

R– R+

MONO-L

FRONT

SPEAKER

OUT

S101-1

FILTER

OFF

IC103

IC102

IC103

VR101-1,2

FILTER

VR102-1

50Hz

HFP

IC104 IC105

50HzEQ200Hz

VR103-1

200Hz

IC106

800Hz

VR104-1

800Hz

IC107

3.2kHz EQ

VR105-1

3.2kHz

IC108

12.8kHz EQ

VR106-1

12.8kHz

IC109

OFF

SW102 DIRECT

IC110

VR107 LEVEL

Q112

MUTE

Q101-110

POWER

AMP

Q111

OVER

CURRENT

DETECT

SUB

WOOFER

LEVEL

CONTROL

REAR

INPUT

HIGH LEVEL

INPUT

US, Canadian

CNJ801-3

CNJ801-4

CNJ809-1

CNJ809-2

CN803

CNJ801

IC301

R-CH

S501

L+ L–

5 6

3 2

R-CH

IC501

R+ R–

R-CH

INPUT

MODE

IC502

F+R

VR501 LEVEL

FRONTF+R

FRONT

IC502

REAR E Q

THE SAME AS ABOVE BLOCK DIAGRAM

VR502 FILTER

IC503

Q513

LOW

BOOST

VR503

LOW BOOST

MUTE

POWER

SECTION

OVER-C

OFFSET

LD801-824

(MATRIX)

LED

SCAN

Q801-804

EQUALIZER INDICATOR

Q512

IC802

AC1

AC2

Q312

MUTE

Q809, 812

IC801

R-CH

BUF

Q301-310

POWER

AMP

Q311

OVER

CURRENT

DETECT

Q808, 811

BUF

Q501-510

POWER

AMP

Q511

OVER

CURRENT

DETECT

Q818-820

OFFSET DETECT

Q815-817

OFFSET DETECT

· Signal path : AUDIO

R-CH

SUB+ SUB–

CN805 L+ L–

R– R+

CN806

MONO-L

SUB

WOOFER

SPEAKER

REAR

SPEAKER

OUT

– 9 – – 10 –

XM-405EQX

3-2. BLOCK DIAGRAM — POWER SECTION —

SWITCHING REGULATER

OSC

IC901

Q813, 814

MUTE

CONTROL

PWM CONT

IC902

VCC

LD827

THERMAL

LD826

OFFSET

LD825

OVER

CURRENT

CN801

BATT

REM

TH801

TH802

Q901

VREF

Q807

LED

DRIVE

Q806

LED

DRIVE

Q805

LED

DRIVE

Q902, 903

REG

1 12

Q810

F/R +B2

B+

Q905, 906

OFFSET

OVER-C

MUTE

F/R+15V

ON/OFF

CONT.

AMP SECTION

Q907, 909

ON/OFF

DRIVE

Q908, 910

ON/OFF

DRIVE

T901

Q904

REG

Q911

15V REG

Q912 –15V

REG

+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

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 diagrams

• 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/ specified.

W or less unless otherwise

• % : indicates tolerance.

• 2 : nonflammable resistor.

• C : panel designation.

• U : B+ Line.

• Power voltage is dc 14.4V and fed 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.

•

: Through hole.

• b : Pattern from the side which enables seeing. (The other layer’s patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated. Parts face side: Parts on the parts face side seen from the (Side A) parts face are indicated.

• Semiconductor Location (AMP Board)

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

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

– 11 – – 12 –

+ 21 hidden pages