Kenwood R-SE7 Service Manual

STEREO INTEGRATED AMPLIFIER/TUNER
R-SE7/SE-7(G)
SERVICE MANUAL
©1997-10/B51-5373-00 (K/K) 3191
stereo integrated amplifier/tuner
on/standby
phones
down up
volume
control
pure
input selector
N.B.
pure
enter
band
auto/mono
turning
SPEAKER
(6 – 16 Ω)
R
L
SUB
WOOFER
PRE OUT
FM75Ω
FM300Ω GND
AM
ANTENA
SYSTEM
CONTROL
R
L
IN IN
CD AUX
REC OUT PLAY OUT REC OUT PLAY OUT
TAPE
MD
Panel *
(A60-)
Front glass
(B10-2373-03)
Indicator
(B12-0322-04)
Panel *
(A60-)
AC power cord *
(E30-)
Lock terminal board *
(E70-)
Phono jack
(E63-1014-05)
Phono jack
(E63-0046-15)
Phono jack
(E63-0047-15)
Rectangular receptacle
(E08-0312-05)
Metallic cabinet *
(A01-)
Lock terminal board
(E20-0476-05)
Power cord bushing
(J42-0083-05)
Knob
(K29-6744-04)
Escutcheon
(B07-2363-04)
Indicator
(B12-0320-04)
Knob
(K29-6358-04)
Knob
(K29-6750-03)
Escutcheon
(B07-2367-03)
(HM-701)
PRECAUTIONS FOR REPAIR
• For the SERIAL TEST CODE LIST of the circuit description, see Service manual (B51-5210-00) of R-SA7.
• No connection of ground line if disassemble the unit.
• Please connection the ground line on rear panel, PCBs, Chassis and some others.
* Refer to parts list on page 25.
R-SE7/SE-7(G)(K) COVER( 97.11.28 0:22 AM y[W 2
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25/8/2013
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Kenwood R-SE7 Specifications

Amplifier Section

rated power output (Class AB operation)	20 watts per channel minimum RMS, both channels driven, at 6 Ω, 1 kHz with no more than 10% total harmonic distortion
rated power output (Class A operation)	7.55 watts per channel minimum RMS, both channels driven, at 6 Ω, 1 kHz with no more than 10% total harmonic distortion
total harmonic distortion	0.02% (1 kHz, 10 W, 6 Ω)
frequency response	20 Hz ~ 40 kHz, +0 dB, -3 dB
input sensitivity/impedance	200 mV / 47 kΩ

FM Tuner Section

tuning frequency range	87.5 MHz ~ 108 MHz
usable sensitivity (DIN) MONO	1.2 µV (75 Ω) / 13.2 dBf (40 kHz DEV., S/N 26 dB)
signal to noise ratio MONO	65 dB
signal to noise ratio STEREO	58 dB
selectivity (DIN ±300 kHz)	64 dB

AM Tuner Section

tuning frequency range	531 kHz ~ 1, 602 kHz
usable sensitivity	15 µV (500 µV/m)
signal to noise ratio	48 dB
output level/impedance	0.18 V / 1 kΩ

General Specifications

power consumption	45 W
dimensions	W: 200 mm, H: 77 mm, D: 278 mm
weight (net)	3.0 kg