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SERVICE MANUAL
US Model
Canadian Model
XM-1505SX/1805GX
E Model
XM-1505SX
XM-1505SX/1805GX
STEREO POWER AMPLIFIER
Other Specifications
Circuit system
OTL (output transformerless) circuit
Pulse power supply
Inputs
RCA pin jacks
Outputs
Speaker terminals
Through out pin jacks
Speaker impedance
2 8
(stereo)
4 8
(when used as a bridging amplifier)
1.3 8
(only for subwoofer output) (XM-1805GX)
Maximum outputs
80 watts
× 4 + 300 watts × 1 (at 4 )
Rated outputs (supply voltage at 14.4 V)
5 Speakers:
1505SX:
40 watts
× 4 (50 Hz 20 kHz, 0.04%
THD, at 4
) + 150 watts × 1 (20
300 Hz, 0.04% THD, at 4
)
60 watts
× 4 (50 Hz 20 kHz, 0.1%
THD, at 2
) + 180 watts × 1 (20
300 Hz, 0.1% THD, at 2
)
1805GX:
40 watts
× 4 (Front: 50 Hz 20 kHz,
Rear: 20 Hz 20 kHz, 0.04% THD, at
4
) + 150 watts × 1 (20 300 Hz,
0.04% THD, at 4
)
60 watts
× 4 (Front: 50 Hz 20 kHz,
Rear: 20 Hz 20 kHz, 0.1% THD, at
2
) + 180 watts × 1 (20 300 Hz,
0.1% THD, at 2
)
3 Speakers:
120 watts
× 2 (50 Hz 20 kHz, 0.1%
THD, at 4
) + 150 watts × 1 (20
300 Hz, 0.04% THD, at 4
)
Frequency response
5 Hz 50 kHz (
dB)
Harmonic distortion
0.005% or less (at 1 kHz, 4
)
Input level adjustment range
0.2 6.0 V (RCA pin jacks)
High-pass filter
50 300 Hz, 12 dB/oct
Low-pass filter
50 300 Hz, 12 dB/oct
Phase shift adjustment range (XM-1805GX)
0° 180° (at 40 Hz) (only for subwoofer output)
Power requirements
12 V DC car battery
(negative ground)
Power supply voltage
10.5 16 V
Current drain
at rated output : 42 A
Remote input : 1.0 mA
Dimensions
Approx. 358
× 50 × 264 mm
(w/h/d) (14 1/8
× 2 1/4 × 10 1/2 in.) not incl.
projecting parts and controls
Mass
Approx. 3.5 kg (7 lb. 11 oz.) not incl. accessories
Supplied accessories
Mounting screws (4)
Design and specifications are subject to change without
notice.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
40 watts/150 watts per channel minimum continuous average power into
4 ohms, 5channels driven from 50 Hz (1505SX), 20 Hz (1805GX) to
20 kHz/20 Hz to 300 Hz (subwoofer) with no more than 0.04% total
harmonic distortion per Car Audio Ad Hoc Committee standards.
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Photo: XM-1805GX
Ver 1.1 2001.06
9-870-240-12
2001F0400-1
© 2001.6
Sony Corporation
e Vehicle Company
Shinagawa Tec Service Manual Production Group
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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.
TABLE OF CONTENTS
1. SERVICE NOTE ................................................................. 2
2. GENERAL
Location and Function of Controls .......................................... 3
Connections ............................................................................. 4
3. DISASSEMBLY
3-1. Plate, Bottom ....................................................................... 6
3-2. Amp Board Section ............................................................. 6
3-3. Amp Board, HPF Board, LPF Board ................................... 7
3-4. LED Board ........................................................................... 7
4. ELECTRICAL ADJUSTMENT ...................................... 8
5. DIAGRAMS
5-1. Block Diagram ..................................................................... 9
5-2. Printed Wiring Board Amp Section ............................... 11
5-3. Schematic Diagram Amp Section (1/2) ......................... 12
5-4. Schematic Diagram Amp Section (2/2) ......................... 13
5-5. Printed Wiring Boards HPF, LPF, LED Section ............ 14
5-6. Schematic Diagram HPF, LPF, LED Section ................ 15
6. EXPLODED VIEWS
6-1. Heat Sink (Main) Section .................................................. 16
6-2. Amp Board Section ........................................................... 16
7. ELECTRICAL PARTS LIST......................................... 17
SECTION 1
SERVICE NOTE
NOTE FOR REPLACEMENT OF Q510 AND Q512
When replacing Q510 and Q512, remove C937 and then remove
the screw securing the heat sink (retainer plate).
C937
Q512
Q510
heat sink (retainer plate)
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SECTION 2
GENERAL
This section is extracted
from instruction manual.
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