[. . . ] [. . . ] 6 PCB Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7~8 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 9~10
EIGHT CHANNEL POWER AMPLIFIER
RB-991
Specification
Continuous Power Output - all channel driven (20-20 kHz, < 0. 05% THD) Total Harmonic Distortion (20Hz-20kHz, 8 ohms) Intermodulation Distortion (60 Hz : 7 kHz, 4:1) Frequency Response ( ± 1 dB) Damping Factor (20-20, 000 Hz, 8 ohms) Speaker Impedance Signal to Noise Ratio (IHF A network) Input Impedance Input Sensitivity Power Requirements USA: Europe: Power Consumption Dimensions (W x H x D) 40 watts/ch into 8 ohms
< 0. 05%
< 0. 03%
15Hz100kHz 150 4 ohms minimum 110 dB 22 k ohms 1. 0 volt
115 Volts, 60 Hz 230 Volts, 50 Hz 400 W atts 432 x 121 x 432 mm 17 x 4 3/ 4 x 17 in 109 mm, 4 9/ 32 in 15. 1 kg, 33. 3 lb.
Panel Height Weight (net)
SHINSEN-BLD. Beginning
Y-367A-0208/pdf
Appearance
RB-991
EIGHT CHANNEL POWER AMPLIFIER RB-991
A
PROTECTION B C
D
CH - D LEVEL CH - A LEVEL CH - B LEVEL CH - C LEVEL
POWER
D INPUT R L LINK R INPUT L
C INPUT LINK R L
B INPUT LINK R L
A SIGNALOUTPUT LINK R L IN OUT
MODEL NO. Step Coupling R133 or R135 R134 or R136 R233 or R235 R234 or R236 R333 or R335 R334 or R336 R433 or R435 R434 or R436 Location X-1334-01 PCB X-1334-01 PCB X-1334-01 PCB X-1334-01 PCB X-1334-02 PCB X-1334-02 PCB X-1334-02 PCB X-1334-02 PCB Adjust VR103 VR104 VR203 VR204 VR303 VR304 VR403 VR404 Adjust for
RB-991
1 2 3 4 5 6 7 8
DC milli-voltmeter Reads 4mV
Case Outline
2SB817P 2SD1047P
2SC536K 2SA608K 2SA1016K
2SB631K 2SD600K
PC817B
2SC1941 UPC1237HA
6
PCB Assembly -1
RB-991
016 X-1334A01-02
7
PCB Assembly - 2 016 X-1335B01-07
RB-991
8
Schematic Diagram -1/2
RB-991
9
Schematic diagram -2/2
RB-991
10 [. . . ] [. . . ]