Table Of Contents; Specifications - Pioneer GM-X372 Service Manual

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CONTENTS
SAFETY INFORMATION ............................................2
1. SPECIFICATIONS........................................................3
2. EXPLODED VIEWS AND PARTS LIST .......................4
2.1 PACKING...............................................................4
2.2 EXTERIOR .............................................................6
3. SCHEMATIC DIAGRAM .............................................8
3.1
OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
4. PCB CONNECTION DIAGRAM ................................14
4.1 AMP UNIT...........................................................14
5. ELECTRICAL PARTS LIST ........................................18

1. SPECIFICATIONS

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L 13942296513
Power source .............................................................................................................. 14.4 V DC (10.8 - 15.1 V allowable)
Grounding system ............................................................................................................................................ Negative type
Current consumption ........................................................................................................ 14.4 A (at continuous power, 4 Ω)
Backup current ................................................................................................................................................. 3.0 mA or less
Average current drawn* ............................................................................................................ 5.0 A (4 Ω for two channels)
Fuse ............................................................................................................................................................................ 25 A × 1
Dimensions ......................................................................................................................... 255 (W) × 50 (H) × 169 (D) mm
Weight ..................... .................................................................................... 2.0 kg (4.4 lbs) (Leads for wiring not included)
Maximum power output ...................... .............................................................................................. 100 W × 2 / 240 W × 1
Continuous power output ..................... ...................................... 50 W × 2 (at 14.4 V, 4 Ω, 20 - 20,000 Hz, 0.15% THD)
Load impedance ............................................................................................................................ 4 Ω (2 - 8 Ω allowable)
Frequency response ............................................................................................................ 10 - 50,000 Hz (+0 dB, -1 dB)
Signal-to-noise ratio ..................... .................................................................................................. 100 dB (IHF-A network)
Distortion ...................... . ....................................................................................................................... 0.008% (10 W, 1 kHz)
Separation ......................................................................................................................................................... 60 dB (1 kHz)
Low pass filter ................................................................................................................................ Cut off frequency: 80 Hz
Maximum input level/impedance .................................................................................... RCA: 6.5 V/22 kΩ (0.2 - 6.5 V)
Note:
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• Specifications and the design are subject to possible modification without notice
due to improvements.
*Average current drawn
• The average current drawn is nearly the maximum current drawn by this unit
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when an audio signal is input. Use this value when working out total current
drawn by multiple power amplifiers.
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120 W × 1 (at 14.4 V, 4 Ω, 20 - 20,000 Hz, 0.8% THD)
60 W × 2 (at 14.4 V, 2 Ω, 20 - 20,000 Hz, 0.8% THD)
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6. ADJUSTMENT..........................................................19
7. GENERAL INFORMATION .......................................20
7.1 DIAGNOSIS ........................................................20
7.1.1 DISASSEMBLY .........................................20
7.1.2
CONNECTOR FUNCTION DESCRIPTION
7.2 IC ........................................................................22
....8 8. OPERATIONS............................................................23
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7.5 A (4 Ω for one channel)
[10 (W) × 2 (H) × 6-5/8 (D) in]
(Bridge connection: 4 - 8 Ω allowable)
Cut off slope: -12 dB/oct
Speaker: 26 V/40 kΩ (0.8 - 26 V)
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GM-X372/XH/UC
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