Harman Kardon AVR 2550 Service Manual

1dB
VR
latch
8dB
VR
latch
1dB
VR
latch
8dB
VR
latch
3 to 7
decoder
4 to 13
decoder
1dB
VR
latch
Shift register (32BIT)
Strobe generate
circuit
Level shift circuit
8dB
VR
latch
2
3 L-OUTA
NC VSS VDD TEST
L-INA
4
5 L-A-GNDA
L-OUTB
6
L-INB
7
8 L-A-GNDB
L-OUTC
9
L-INC
10
12 CS1
GND
13
CK
14
L-A-GNDC
11
3 L-OUTA
L-INA
4
5 L-A-GNDA
L-OUTB
Same as L-ch
Circuit
6
L-INB
7
8 L-A-GNDB
L-OUTC
9
L-INC
10
12 CS1
GND
13
CK
14
L-A-GNDC
11
1 28 27
TC9482F (ELECTRONIC VOLUME/INPUT) : IC31

Harman Kardon AVR 2550 Specifications

Audio Specifications

continuous average power (stereo mode)	50 watts per channel into 8 ohms @ 20Hz – 20kHz, <0.07% THD, both channels driven
continuous average power (five-channel surround mode)	40 watts per channel into 8 ohms @ 20Hz – 20kHz, <0.07% THD, all channels driven
high instantaneous current capability (HCC)	±25 amps

Tuner Specifications

usable sensitivity	IHF 1.3µV/13.2dBf
THD at 1kHz with 100% modulation (mono)	0.15%
THD at 1kHz with 100% modulation (stereo)	0.3%

Weight and Dimensions

dimensions (H x W x D)	165mm x 440mm x 365mm
weight	10.8 kg