Sony xm 754 sx service manual

Page 1

XNI-7548X

SERVICE MANUAL us Model

Canadian Model
AEP Model
UK Model
E Model

Ver 1.3 2002. 07

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (US MODEL)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

75 watts per channel minimum continuous average power into

4 ohms, both channels driven from 20 Hz to 20 kHz with no more
than 0.04% total harmonic distortion per Car Audio Ad Hoc
Committee standards.

Other Specifications

Circuit system OTL (output transformerless) circuit Input level adjustment range
Pulse power supply 0.2 , 6.0 V (RCA pin jacks)
inputs RCA pin jacks 0.4 , 12.0 V (High level input)
High level input connector Highrpass filter 50 , 300 Hz. 712 dB/oct
Outputs Speaker terminals Lowcpass tilter 50 , 300 Hz, 712 dB/oct
Speaker impedance 2 , 8 t2 (stereo) Low boost 0 , 10 dB (40 Hz)
4 , 8 (2 (when used as a bridging amplifier) Power requirements 12 V DC car battery
Maximum outputs Four speakers: 170w X 4 (at 4 :2) (negative ground)
Three speakers: 170 w x 2 + 400 W X 1 (at 4 t2) Power supply voltage 10.5 , 16 V
Two speakers: 400 W X 2 (at 4 51) Current drain at rated output : 40 A (4 t2)
Rated outputs (supply voltage at 14.4 V) Remote input : .5 mA
Four speakers: Dimensions Approx. 358 x 50 x 264 mm
75 w x 4 (20 Hz , 20 kHz. 0.04% THD. at 4 12) (w/h/d)(14118 x 2 X 10 m in.) not incl.
100 w x 4 (20 Hz , 20 kHz. 0.1% THD. at 2 12) projecting parts and controls
Two speakers: Mass Approx. 3.5 kg (7 117. ll 02.) not incl. accessories
200 w x 2 (20 Hz , 20 kHz. 0.1% THD, at 4 ti) Supplied accessories Mounting screws (4)
Frequency response 5 Hz , 100 kHz (3 dB)
Harmonic distortion 0.005% or less (at 1 kHz, 4 ti) Design and specifications are rub/m to change wilhnut

nolice.

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
9-873-503-13 Sony Corporation S O N Y
200260400-1 e Vehicle Company
© 2002. 07 Published by Sony Engineering Corporation ®

Page 2

XM-754SX

TABLE OF CONTENTS
1. GENERAL
Location and Function of Controls .......................................... 3
Connections ............................................................................. 4

2. DISASSEMBLY

2-1. Plate, Bottom ..... 6
22. Main Board Sectior 6
23. Main Board, Filter (F) Board, Filter (R) Board 7
274. LED Board ....................................................... 7
3. ELECTRICAL ADJUSTMENT ...................................... 8
4. DIAGRAMS
4- 1. Block Diagram ..................................................................... 9
4.2 Printed Wiring Board iMain Sectioni ..... . 1 1
4-3. Schematic Diagram iMflIH Section (1/2)7 . 12
4-4. Schematic Diagram iMain Section (2/2)7 . 13
4.5 Schematic Diagram iFiIter (F), Filter (R),

LED Sectioni ....... 14
4-6. Printed Wiring Board. lter (F), Filter (R),

LED Secticni .................................................................... 15
5. EXPLODED VIEWS
5-1. Heat Sink (Main) Section . 17
5.2 Main Board Section .. . 18
6. ELECTRICAL PARTS LIST ........................................ l9

SAFETY-RELATED COMPONENT WARNING I!

COMPONENTS IDENTIFIED BY MARK A OR DOTTED LINE
WITH MARK A ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION Au COMPOSANT AYANT RAPPORT
A LA sEcuanéu

LES COMPOSANTS IDENTIFIES PAR UNE MARQUE A SUR LES
DIAGRAMMES SCHEMATIQUES ET LA LISTE DES PIECES
SONT CRITIQUES POUR LASECURITE DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS OUE PAR DES PIECES
SONY DONT LES NUMEROS SONT DONNES DANS CE MANUEL
OU DANS LES SUPPLEMENTS PUBLIES PAR SONY.

2