3
5
6
7
8
F
E
D
C
B
A
5
6
7
8
GM-4000F/X1R/EW
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) .....8
4. PCB CONNECTION DIAGRAM................................14
4.1 AMP UNIT..........................................................14
5. ELECTRICAL PARTS LIST........................................18
6. ADJUSTMENT .........................................................21
7. GENERAL INFORMATION.......................................22
7.1 DIAGNOSIS .......................................................22
7.1.1 DISASSEMBLY .........................................22
7.1.2 CONNECTOR FUNCTION DESCRIPTION ......23
8. OPERATIONS ...........................................................24
1. SPECIFICATIONS
Power source .......................................................................................................... 14.4 V DC (10.8 -- 15.1 V allowable)
Grounding system .......................................................................................................................................... Negative type
Backup current .................................................................................................................................................. 3 mA or less
Current consumption .................................................................................................... 18.1 A (at continuous power, 4
)
Average current drawn* ........................................................................................................ 6.6 A (4
for four channels)
9.0 A (4
for two channels)
Fuse .............................................................................................................................................................................. 25 A
Dimensions ...................................................................................................................... 300 (W)
× 61 (H) × 237 (D) mm
Weight .................................................................................................................... 3.8 kg (Leads for wiring not included)
Maximum power output .................................................................................................................... 70 W
× 4 / 150 W × 2
Continuous power output ........................................................................ 45 W
× 4 / 100 W × 2 (DIN45324, +B=14.4 V)
Load impedance .......................................................................................................................... 4
(2 -- 8 allowable)
(Bridge connection: 4 -- 8
allowable)
Frequency response .......................................................................................................... 10 -- 50,000 Hz (+0 dB, 1 dB)
Signal-to-noise ratio .................................................................................................................... 100 dB (IEC-A network)
Distortion .......................................................................................................................................... 0.008% (10 W, 1 kHz)
Separation ...................................................................................................................................................... 60 dB (1 kHz)
Low pass filter .............................................................................................................................. Cut off frequency: 80 Hz
Cut off slope: 12 dB/oct
High pass filter ............................................................................................................................ Cut off frequency: 80 Hz
Cut off slope: 12 dB/oct
Maximum input level/impedance .................................................................................. RCA: 6.5 V/22 k
(0.4 -- 6.5 V)
Speaker: 26 V/40 k
(1.6 -- 26 V)
Note:
· 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 when an audio signal is input. Use this value when
working out total current drawn by multiple power amplifiers.
