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Kenwood KRF-V5050D Service Manual

Kenwood KRF-V5050D
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AUDIO VIDEO SURROUND RECEIVER
© 2001-2/B51-5702-00 (K/K) 2148
A SPEAKERS B
STANDBY
POWER
MULTI CONTROL
LISTEN MODE
SOUND
SOURCE DIRECT
AUTO/CINEMA EQBAND MEMORY
INPUT SELECTOR
VOLUME CONTROL
UPDOWN
PROLOGIC 3 STEREO CS5.1
DOLBY
DIGITAL
DTS
INPUT MODESET UP
S VIDEO V L – AUDIO – R
AV AUX
DIMMER MONITOR
PHONES
ON/STANDBY
ON OFF
Illustration is KRF-V7050D(M).
* Refer to parts list on page 35.
KRF-V5050D/V5050DE/V5050D-S/V5550D-S/
KRF-V6050D/V6050D-S/V7050D/V7050D-S/
KRF-X9050D/X9050D-S
SERVICE MANUAL
GREEN
ORANGE
GRAY
SURROUND SPEAKERS
FRONT SPEAKERSCENTER SPEAKER
BLUE
FRONT SPEAKERS
(8 ~ 16 )
RED
DVD
VIDEO 1 VIDEO 2
VIDEO 3
AC OUTLETS
50/60Hz
AC110-120V/220-240V
SWITCHED
TOTAL 90W MAX.
CD/DVD
OPTICAL
VIDEO3
OPTICAL
DIGITAL IN
VIDEO 2
COAXIAL
CENTER
R
A
LC
LR
LR
B
GND
PLAY IN PLAY IN PLAY IN
VIDEO 1 VIDEO 2 VIDEO 3
SUB WOOFER
PRE OUT
REC OUTPLAY IN
MONITOR
REC OUTPLAY INREC OUT
MD / TAPE
CD / DVDPHONO
AUDIO
PLAY IN PLAY IN PLAY INREC OUTPLAY IN
MONITOR
OUT
S VIDEO
VIDEO 1
DVD
R
L
SYSTEM
CONTROL
VIDEO 2 IN
VIDEO 1 IN VIDEO 3 IN
CD/DVD
DVD
MONITOR
OUT
VIDEO 1
OUT
GND
ANTENNA
AM
DVD / 6CH. INPUT
SUB
WOOFER
FRONT
SURROUND
75 s
AM 10kHz
FM 100kHz
50 s
AM 9kHz
FM 50kHz
DE-
EMPHASIS
CHANNEL
SPACE
(8 ~ 16 ) (8 ~ 16 )
(8 ~ 16 )
FM
75
AC 220-
240V~
AC 110-
120V~
Knob *
(K29-)
Knob(BUTTON) *
(K27-)
Front glass *
(B10-)
Knob *
(K29-)
Panel *
(A60-)
Phone jack
(E11-0272-05)
Knob *
(K29-)
Knob *
(K29-)
Knob *
(K29-)
Knob *
(K29-)
Cylindrical receptacle
(E56-0033-05)
Pin jack
(E63-1172-05)
Pin jack
(E63-0127-05)
Pin jack
(E63-1139-05)
Metallic cabinet *
(A01-)
Pin jack x2
(E63-1143-05)
Screw terminal board *
(E70-)
Pin jack
(E63-1146-05)
Pin jack
(E63-1144-05)
Lock terminal board
(E70-0128-05)
AC power cord *
(E30-)
Miniature phone jack
(E11-0293-05)
AC outlet *
(E03-)
AC power cord bushing
(J42-0083-05)
Cylindrical receptacle x2
(E56-0011-05)
Optical receiving module
(W02-2802-05)
Pin jack
(E63-1080-05)
Slide switch
(S62-0001-05)
Slide switch
(S62-0034-05)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299

Table of Contents

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Do you have a question about the Kenwood KRF-V5050D and is the answer not in the manual?

Kenwood KRF-V5050D Specifications

KRF-V6050D

Audio Performance IconAudio Performance
rated power output during stereo operation110 W + 110 W
effective power output during surround operation - front100 W + 100 W
effective power output during surround operation - center100 W
effective power output during surround operation - surround100 W + 100 W
total harmonic distortion0.050% (1 kHz, 50W, 6 Ω)
frequency response10 Hz ~ 60 kHz, +0 dB, –3.0 dB
signal to noise ratio - phono74 dB
signal to noise ratio - cd90 dB
Input/Output Sensitivity and Impedance IconInput/Output Sensitivity and Impedance
input sensitivity / impedance - phono2.5 mV / 27 kΩ
input sensitivity / impedance - cd200 mV / 47 kΩ
input sensitivity / impedance - video2/monitor200 mV / 47 kΩ
input sensitivity / impedance - dvd/6ch input200 mV / 10 kΩ
output level / impedance - tape rec200 mV / 1 kΩ
output level / impedance - video2/monitor200 mV / 1 kΩ
output level / impedance - pre out (subwoofer)1.5 V / 2.2 kΩ
Tone Control IconTone Control
bass±10 dB (at 70 Hz)
treble±10 dB (at 10 kHz)
Dimensions and Weight IconDimensions and Weight
dimensions - width440 mm
dimensions - height143 mm
dimensions - depth400 mm
weight8.6 kg

KRF-V5050D

Audio Performance IconAudio Performance
rated power output during stereo operation110 W + 110 W
effective power output during surround operation - front100 W + 100 W
effective power output during surround operation - center100 W
effective power output during surround operation - surround100 W + 100 W
total harmonic distortion0.050% (1 kHz, 50W, 6 Ω)
frequency response40 Hz ~ 60 kHz, +0 dB, –3.0 dB
signal to noise ratio - phono74 dB
signal to noise ratio - cd90 dB
Input/Output Sensitivity and Impedance IconInput/Output Sensitivity and Impedance
input sensitivity / impedance - phono2.5 mV / 27 kΩ
input sensitivity / impedance - cd200 mV / 47 kΩ
input sensitivity / impedance - monitor in (video2/monitor)200 mV / 47 kΩ
input sensitivity / impedance - dvd/6ch input200 mV / 47 kΩ
output level / impedance - tape rec200 mV / 1 kΩ
output level / impedance - monitor out (video2/monitor)200 mV / 1 kΩ
output level / impedance - pre out (subwoofer)1.5 V / 2.2 kΩ
Tone Control IconTone Control
bass±10 dB (at 70 Hz)
treble±10 dB (at 10 kHz)
Dimensions and Weight IconDimensions and Weight
dimensions - width440 mm
dimensions - height143 mm
dimensions - depth400 mm
weight8.5 kg

General

Power and Consumption IconPower and Consumption
power consumption250 W
ac outlet switchedtotal 90 W max.

Summary

Cautions

Resetting the Microcomputer

Procedure to reset the microcomputer if it malfunctions, restoring normal operation.

Wiring Diagram

Circuit Description: Initial and Backup Functions

Initial State

Details the default settings for various functions upon microcomputer initialization.

Backup Function

Explains how the receiver retains its last state when power is cycled.

Circuit Description: Tuner Destination List

Circuit Description: Microprocessor Periphery Diagram

Microprocessor Periphery Block Diagram

Illustrates the block diagram of the microprocessor and its connected peripheral components.

Circuit Description: Microprocessor Pin Details

Pin Description of Microprocessor

Provides a detailed list of microprocessor pins, their I/O, and functions.

Circuit Description: Interface Ports and Test Mode

AK4112AVF u-com Interface Port

Details the interface between the AK4112AVF and the micro-computer.

AK4527B u-com Interface Port

Details the interface between the AK4527B and the micro-computer.

Test Mode Operation

Explains how to enter, cancel, and the contents of the test mode.

PC Board Component View

Exploded View (Unit) - Partial

Parts List - KRF-V5050D/V5050DE/V5050D-S

Exploded View (Unit) - Main

Specifications - Europe Audio Section

Audio Section (KRF-V6050D)

Technical specifications for the audio section of the KRF-V6050D model.

Digital Audio Section

Specifications for digital audio inputs and sampling frequency.

Video Section

Specifications for video inputs, outputs, and S-Video signals.

FM Tuner Section

Technical specifications for the FM tuner, including frequency range and sensitivity.

Specifications - Other Countries Audio Sections

Audio Section (KRF-V6050D) - Other Countries

Technical specifications for the audio section of the KRF-V6050D model for other countries.

Audio Section (KRF-V5050D)

Technical specifications for the audio section of the KRF-V5050D model.

Audio Section (KRF-V5550D)

Technical specifications for the audio section of the KRF-V5550D model.

Audio Section (KRF-V7050D)

Technical specifications for the audio section of the KRF-V7050D model.

Specifications - Tuner Sections

FM Tuner Section (Europe)

Technical specifications for the FM tuner in Europe.

MW Tuner Section (Europe)

Technical specifications for the MW tuner in Europe.

FM Tuner Section (Other Countries)

Technical specifications for the FM tuner for other countries.

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