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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
(stereo)
4 8
(when used as a bridging
amplifier)
Maximum outputs
80 watts
× 4 + 200 watts × 1 (at 4 )
Rated outputs (supply voltage at 14.4 V)
5 Speakers:
40 watts
× 4 (20 Hz 20 kHz, 0.04%
THD, at 4
) + 100 watts × 1 (20
200 Hz, 0.04% THD, at 4
)
50 watts
× 4 (20 Hz 20 kHz, 0.1%
THD, at 2
) + 125 watts × 1 (20
200 Hz, 0.1% THD, at 2
)
3 Speakers:
100 watts
× 2 (20 Hz 20 kHz, 0.1%
THD, at 4
) + 100 watts × 1 (20
200 Hz, 0.04% THD, at 4
)
Frequency response
5 Hz 100 kHz (
dB)
Harmonic distortion
0.005% or less (at 1 kHz, 4
)
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 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.
+0
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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.
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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
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SECTION 1
GENERAL
This section is extracted
from instruction manual.
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