Sony XM-280gtx Service Manual
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Sony XM-280gtx Service Manual

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3 7 63 1515 0

SERVICE MANUAL

Ver 1.0 2003. 01
AUDIO POWER SPECIFICATIONS (US MODEL)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
80 watts per channel minimum continuous average power into
4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.08% total harmonic distortion per Car Audio Ad Hoc
Committee standards.
TE
L 13942296513
Other Specifications
Circuit system
OTL (output transformerless) circuit
Pulse power supply
Inputs
RCA pin jacks
High level input connector
Outputs
Speaker terminals
Through out pin jacks
Suitable speaker impedance
2 – 8 Ω (stereo)
4 – 8 Ω (when used as a bridging amplifier)
Maximum outputs
190 W × 2 (at 4 Ω)
240 W × 2 (at 2 Ω)
480 W (monaural) (at 4 Ω)
Rated outputs (supply voltage at 14.4 V)
80 W × 2 (20 Hz – 20 kHz, 0.08% THD, at 4 Ω)
100 W × 2 (20 Hz – 20 kHz, 0.1% THD, at 2 Ω)
200 W (monaural) (20 Hz – 20 kHz,
0.1% THD, at 4 Ω)
Frequency response
5 Hz – 50 kHz (
Harmonic distortion
0.008% or less (at 1 kHz, 4 Ω)
www
.
Sony Corporation
9-877-021-01
2003A0400-1
e Vehicle Company
© 2003. 01
Published by Sony Engineering Corporation
http://www.xiaoyu163.com
+0
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–3
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ao
u163
y
i
http://www.xiaoyu163.com
XM-280GTX
2 9
8
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
Input level adjustment range
Low-pass filter
Low boost
Power supply voltage
Current drain
Dimensions
Mass
Supplied accessories
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
damaged by heat.
STEREO POWER AMPLIFIER
co
.
9 4
2 8
US Model
Canadian Model
AEP Model
UK Model
E Model
0 5
8
2 9
9 4
2 8
0.2 – 6.0 V (RCA pin jacks)
1.2 – 12.0 V (High level input)
50 – 300 Hz, –12 dB/oct
0 – 10 dB (40 Hz)
10.5 – 16 V
at rated output : 20 A (4 Ω)
Remote input : 1 mA
Approx. 286 × 55 × 196 mm
(11
× 2
× 7
in.) (w/h/d) not incl.
3/8
1/4
3/4
projecting parts and controls
Approx. 2.5 kg (5 lb. 8 oz.) not incl. accessories
Mounting screws (4)
High level input cord (1)
Protection cap (1)
m
9 9
9 9
1

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  • Page 1: Service Manual

    • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be damaged by heat. STEREO POWER AMPLIFIER u163 Sony Corporation 9-877-021-01 2003A0400-1 e Vehicle Company © 2003. 01 Published by Sony Engineering Corporation http://www.xiaoyu163.com...

  • Page 2: Table Of Contents

    XM-280GTX 3 7 63 1515 0 TABLE OF CONTENTS 1. GENERAL Location and Function of Controls .......... 3 Connections ................4 2. DISASSEMBLY 2-1. Bottom Plate ................ 7 2-2. Main Board Section ............. 8 2-3. Disassembly and Assembly of Ornamental Plate ....8 2-4.

  • Page 3: General

    XM-280GTX SECTION 1 GENERAL 3 7 63 1515 0 This section is extracted from instruction manual. Location and Function of Controls Emplacement et fonction des commandes 1 POWER/PROTECTOR indicator 1 Indicateur POWER/PROTECTOR Lights up in green during operation. S’allume en vert en cours de fonctionnement.

  • Page 4: Connections

    XM-280GTX 3 7 63 1515 0 Connections Connexions Caution Attention 2-Speaker System Système à 2 haut-parleurs • Before making any connections, disconnect • Avant d’effectuer les connexions, débranchez the ground terminal of the car battery to avoid la borne de masse de la batterie de voiture Car audio unit short circuits.
  • Page 5 XM-280GTX 3 7 63 1515 0 Dual Mode System (With a Bridged Subwoofer) 2-way System Double mode de connexion (avec un haut-parleur Système 2 voies d’extr êmes graves en pont) Two output channels Duex canaux de sortie LINE OUT...

  • Page 6: Fuse Replacement

    Blanc Sortie haut-parleur gauche bridging amplifier). In such a case, consult your nearest Sony dealer. • Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Warning...

  • Page 7: Disassembly

    XM-280GTX SECTION 2 DISASSEMBLY 3 7 63 1515 0 Note : This set can be disassemble according to the following sequence. 2-1. BOTTOM PLATE (Page 7) 2-2. MAIN BOARD SECTION (Page 8) 2-5. LED BOARD 2-3. DISASSMBLY AND ASSEMBLY 2-4.

  • Page 8: Main Board Section

    XM-280GTX 3 7 63 1515 0 2-2. MAIN BOARD SECTION 2 B 3x12 1 B 3x12 3 B 3x12 4 MAIN board section 5 CON1 heat sink (main) L 13942296513 2-3. DISASSEMBLY AND ASSEMBLY OF ORNAMENTAL PLATE At disassembly:...

  • Page 9: Main Board

    XM-280GTX SECTION 3 DIAGRAMS 3 7 6 3 1 5 1 5 0 2-4. MAIN BOARD THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

  • Page 10: Printed Wiring Boards -Main Section (1/2)

    XM-280GTX 3 7 6 3 1 5 1 5 0 3-2. PRINTED WIRING BOARDS — MAIN SECTION (1/2) — • Refer to page 9 for Common Note on Printed Wiring Boards. MAIN BOARD (SIDE A) Q213 Q204 Q113 R221...

  • Page 11: Printed Wiring Boards -Main Section (2/2)

    XM-280GTX 3 7 6 3 1 5 1 5 0 3-3. PRINTED WIRING BOARDS — MAIN SECTION (2/2) — • Refer to page 9 for Common Note on Printed Wiring Boards. MAIN BOARD (SIDE B) Q211 Q212 R235 EC12...

  • Page 12: Schematic Diagram

    XM-280GTX 3 7 6 3 1 5 1 5 0 3-4. SCHEMATIC DIAGRAM • Refer to page 9 for Common Note on Schematic Diagrams, IC Block Diagram and Waveform. D101 R125 R123 R124 Q105 Q111 Q109 Q103 Q102 C108...

  • Page 13: Exploded Views

    XM-280GTX SECTION 4 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts number in the exploded views are not supplied. Example : • Items marked “*” are not stocked since KNOB, BALANCE (WHITE) ...

  • Page 14: Main Board Section

    XM-280GTX 3 7 63 1515 0 4-2. MAIN BOARD SECTION not supplied not supplied not supplied L 13942296513 FUSE1 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-253-102-01 PANEL (FRONT) 3-912-431-01 SCREW (+–P) u163 A-3274-824-A MAIN BOARD, COMPLETE...

  • Page 15: Electrical Parts List

    XM-280GTX SECTION 5 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since When indicating parts by reference the parts list may be different from the they are seldom required for routine service.
  • Page 16 XM-280GTX MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark EC11 1-128-551-11 ELECT 22uF MC203 1-136-157-00 FILM 0.022uF EC12 1-124-583-11 ELECT 22uF MC204 1-137-397-11 MYLAR 0.047uF 100V EC13 1-107-882-11 ELECT...
  • Page 17 XM-280GTX MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-061-11 RES-CHIP 3.3K 1/10W R104 1-216-081-00 METAL CHIP 1/10W 1-216-049-11 RES-CHIP 1/10W R108 1-216-079-00 METAL CHIP 1/10W 1-216-049-11 RES-CHIP 1/10W...
  • Page 18 XM-280GTX MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R229 1-218-691-11 FILM CHIP 0.5% 1/10W MISCELLANEOUS R230 1-218-680-11 FILM CHIP 0.5% 1/10W *************** R231 1-216-063-00 RES-CHIP 3.9K 1/10W R232...
  • Page 19 XM-280GTX 3 7 63 1515 0 MEMO L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 20 XM-280GTX 3 7 63 1515 0 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page.

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