3
5
6
7
8
F
E
D
C
B
A
5
6
7
8
GM-D500M/XH/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 SCHEMATIC DIAGRAM(GUIDE PAGE) ..............8
4. PCB CONNECTION DIAGRAM................................14
4.1 AMP PCB............................................................14
4.2 CONNECTOR PCB .............................................18
5. ELECTRICAL PARTS LIST........................................19
6. ADJUSTMENT .........................................................22
7. GENERAL INFORMATION.......................................23
7.1 DIAGNOSIS .......................................................23
7.1.1 DISASSEMBLY .........................................23
7.1.2 CONNECTOR FUNCTION DESCRIPTION ......24
7.2 IC ........................................................................25
8. OPERATIONS ...........................................................26
1. SPECIFICATIONS
Power source ...................................................................... 14.4 V DC (10.8 -- 15.1 V allowable)
Backup current ............................................................................................................3mA or less
Grounding system .................................................................................................. Negative type
Current consumption ............................................................ 31.0 A (at continuous power, 4
)
Average current drawn* .................................................................. 4.4 A (4
for one channel)
........................................................................................................ 7.3 A (2
for one channel)
Fuse .................................................................................................................................... 30 A x 2
Dimensions .................................................................................. 268 (W) x 52 (H) x 250 (D) mm
[10-1/2 (W) x 2 (H) x 9-7/8 (D) in.]
Weight .............................................................................. 2.9 kg (Leads for wiring not included)
Maximum power output ...................................................... 600 W x 1 (4
) / 1,000 W x 1 (2 )
Continuous power output (EW) ........ 490 W x 1 (4
) / 630 W x 1 (2 ) (DIN45324, +B=14.4 V)
Continuous power output (UC,ES).............. 300 W x 1 (at 14.4 V, 4
, 20 -- 240 Hz, 0.4% THD)
.................................................................. 500 W x 1 (at 14.4 V, 2
, 20 -- 240 Hz, 0.8% THD)
Load impedance ...................................................................................... 4
(1 -- 8 allowable)
Frequency response ........................................................................ 5 -- 240 Hz (+0.5 dB, 3 dB)
Distortion .................................................................................................... 0.03 % (10 W, 120 Hz)
Low pass filter ............................................................................ Cut off frequency: 40 -- 240 Hz
............................................................................................................ Cut off slope: 24 dB/oct
Bass level control .................................................................................................... 22 -- +12 dB
Maximum input level/impedance ...................................... RCA: 6.5 V/22 k
(125 mV -- 6.5 V)
*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 ampli-
fiers.
