KENWOOD KRF-V7771D Owner's Manual

Cover page of KENWOOD KRF-V7771D Owner's Manual

Owner's Manual for KENWOOD KRF-V7771D, downloadable as a PDF file.

We also have service manual to this model.

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  • The manual has 61 pages
  • File size: 6.33 MB
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background image
SYSTEM
CONTROL
FRONT SPEAKERS
(6-16
)
CENTER
SPEAKER
(6-16
)
SURROUNDSPEAKERS
DIGITAL IN
CD1
COAXIAL
VIDEO 4
COAXIAL
VIDEO 3
OPTICAL
VIDEO 2
OPTICAL
SL 16 XS 8
( SL 16 ) ( XS 8 )
(6-16
)
OPTICAL
DIGITAL OUT
SWITCHED
L
R
A
L
R
L
C
R
B
SL 16
TEXT
IR
RECEIVER
IN
RELAY
CONTROL
IR
OUT
LCD
REMOTE
IR REPEATER OUT
TV
ON/OFF
SENSOR
L
R
R
R
L
R
ANTENNA
AM
-FM 75
GND
CD1
PHONO
MD/
TAPE 1
REC
OUT
PLAY
IN
REC
OUT
PLAY
IN
PLAY
IN
PLAY
IN
CD2 /
TAPE 2
MONITOR
MONITOR
OUT
SURROUND
CENTER
SUB
WOOFER
L
L
R
VIDEO
S VIDEO
VIDEO
SECOND ROOM PRE OUT
PRE OUT
AUDIO
VIDEO 3
VIDEO 4
PLAY
IN
VIDEO 2
VIDEO 1
L
R AUDIO
PLAY
IN
REC
OUT
+
-
AUDIO
PHONES
INPUT SELECTOR
VOLUME
DTS
DOLBY DIGITAL
CLIP INDICATOR
POWER
ON/STANDBY
A
B
SPEAKERS
MUTE
DOWN
UP
DISPLAY MODE
S VIDEO
V
L - AUDIO - R
CD2 / TAPE2
MONITOR
ON
OFF
AV AUX
AUDIO VIDEO SURROUND RECEIVER
KRF-V7771D/VR-2080
KRF-V8881D/VR-2090
SERVICE MANUAL
© 1998-5/B51-5426-00 (K/K) 1796
Indicator
(B12-0326-04)
Indicator
(B12-0333-04)
Indicator
(B12-0303-24)
Panel*
(A60-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Front glass
(B10-2418-03)
Video cylindrical receptacle*
(E56-)
Phone jack
(E11-0271-05)
Phono jack
(E63-1030-05)
Knob*
(K27-)
Knob*
(K29 -)
Lock
terminal board
(E70-0052-05)
AC power cord*
(E30-)
Miniature phone jack
(E11-0373-05)x2
Oscillating module
(W02-1114-05)
AC outlet*
(E03-)
Screw
terminal board
(E70-0096-05)
Phono jack
(E63-0133-15)
Phono jack
(E63-1028-05)
Front glass
(B10-2451-03)
* Refer to parts list on page 60.
Phono jack
(E63-1008-05)
Phono jack
(E63-1005-05)
Slide switch
(S62-0034-05)
Phono jack
(E63-0139-15)x2
Phono jack
(E63-0200-05)
Phono jack
(E63-0136-15)x2
Power cord bushing
(J42-0083-05)
Screw terminal board
(E70-0095-05)
Optical receiving module
(W02-1181-05)x2
Video cylindrical receptacle
(E56-0011-05)x2
Miniature phone jack
(E11-0360-05)
Phono jack
(E63-0162-05)x2
Miniature phone jack
(E11-0291-05)
Miniature phone jack
(E11-0374-05)x2
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 2
background image
SYSTEM
CONTROL
FRONT SPEAKERS
(6-16
)
CENTER
SPEAKER
(6-16
)
SURROUNDSPEAKERS
DIGITAL IN
CD1
COAXIAL
VIDEO 4
COAXIAL
VIDEO 3
OPTICAL
VIDEO 2
OPTICAL
SL 16 XS 8
( SL 16 ) ( XS 8 )
(6-16
)
OPTICAL
DIGITAL OUT
SWITCHED
L
R
A
L
R
L
C
R
B
SL 16
TEXT
IR
RECEIVER
IN
RELAY
CONTROL
IR
OUT
LCD
REMOTE
IR REPEATER OUT
TV
ON/OFF
SENSOR
L
R
R
R
L
R
ANTENNA
AM
-FM 75
GND
CD1
PHONO
MD/
TAPE 1
REC
OUT
PLAY
IN
REC
OUT
PLAY
IN
PLAY
IN
PLAY
IN
CD2 /
TAPE 2
MONITOR
MONITOR
OUT
SURROUND
CENTER
SUB
WOOFER
L
L
R
VIDEO
S VIDEO
VIDEO
SECOND ROOM PRE OUT
PRE OUT
AUDIO
VIDEO 3
VIDEO 4
PLAY
IN
VIDEO 2
VIDEO 1
L
R AUDIO
PLAY
IN
REC
OUT
+
-
AUDIO
PHONES
INPUT SELECTOR
VOLUME
DTS
DOLBY DIGITAL
CLIP INDICATOR
POWER
ON/STANDBY
A
B
SPEAKERS
MUTE
DOWN
UP
DISPLAY MODE
S VIDEO
V
L - AUDIO - R
CD2 / TAPE2
MONITOR
ON
OFF
AV AUX
AUDIO VIDEO SURROUND RECEIVER
KRF-V7771D/VR-2080
KRF-V8881D/VR-2090
SERVICE MANUAL
© 1998-5/B51-5426-00 (K/K) 1796
Indicator
(B12-0326-04)
Indicator
(B12-0333-04)
Indicator
(B12-0303-24)
Panel*
(A60-)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Front glass
(B10-2418-03)
Video cylindrical receptacle*
(E56-)
Phone jack
(E11-0271-05)
Phono jack
(E63-1030-05)
Knob*
(K27-)
Knob*
(K29 -)
Lock
terminal board
(E70-0052-05)
AC power cord*
(E30-)
Miniature phone jack
(E11-0373-05)x2
Oscillating module
(W02-1114-05)
AC outlet*
(E03-)
Screw
terminal board
(E70-0096-05)
Phono jack
(E63-0133-15)
Phono jack
(E63-1028-05)
Front glass
(B10-2451-03)
* Refer to parts list on page 60.
Phono jack
(E63-1008-05)
Phono jack
(E63-1005-05)
Slide switch
(S62-0034-05)
Phono jack
(E63-0139-15)x2
Phono jack
(E63-0200-05)
Phono jack
(E63-0136-15)x2
Power cord bushing
(J42-0083-05)
Screw terminal board
(E70-0095-05)
Optical receiving module
(W02-1181-05)x2
Video cylindrical receptacle
(E56-0011-05)x2
Miniature phone jack
(E11-0360-05)
Phono jack
(E63-0162-05)x2
Miniature phone jack
(E11-0291-05)
Miniature phone jack
(E11-0374-05)x2
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 2
background image
FM
(T90-0835-05)
indoor antenna (1)
Remote
(A70-1191-05)
(RC-R0907)
Battery cover(A09-0378-08)
control unit (1)
Loop antenna stand (1)
Batteries(R6/AA) (4)
AM loop antenna (1) (T90-0833-05)
(J19-3645-05)
Check that the following accessories are present.
* AC
(E03-0115-05)
plug adaptor (1)
* Use to adapt the plug on the power cord
to the shape of the wall outlet. (Accessory
only for regions where use is necessary.)
KRF-V7771D/V8881D/VR-2080/2090
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS ...............2
CONTROLS .................................................................3
DISASSEMBLY FOR REPAIR .....................................5
BLOCK DIAGRAM .......................................................6
CIRCUIT DESCRIPTION .............................................9
ADJUSTMENT .......................................................... 17
WIRING DIAGRAM ....................................................19
PC BOARD ................................................................23
SCHEMATIC DIAGRAM ............................................31
EXPLODED VIEW .....................................................59
PARTS LIST...............................................................60
SPECIFICATIONS .....................................................79
Contents
Accessories
Cautions
How to reset the microcomputer
The microcomputer may malfunction (impossibility of operation,
erroneous display, etc.) when the power cord is unplugged and
plugged in again while the unit is in ON mode with the
key
pressed or due to other external causes. In this case, execute the
procedure on the right to reset the microcomputer and return the
unit to the normal condition.
1 Unplug the power cord from the wall outlet.
2 While holding the
(ON/STANDBY) key depressed, plug the
power cord into the wall outlet again.
÷ Resetting the microcomputer clears the memory you entered and
returns it to the initial condition when the unit left the factory.
U.S.A. and Canada
1 With the power cord plugged in, turn the POWER key OFF.
2 Whill holding down the ON/STANDBY key, press POWER key.
Expect for U.S.A. and Canada
Please note that the following items will be deleted from
this unit's memory if the power cord is disconnected
from the AC outlet for approximately three days.
Memory backup function
÷ The frequency setting is cleared and 87.5 MHz is selected.
÷ The preset station memory is cleared.
÷ The surround setting is cleared and reset to the initial condition.
÷ The input selection is cleared and the "Tuner" input is selected.
÷ The volume setting is cleared and the volume is set to "-66 dB".
÷ The receiving band setting is cleared and the "FM" band is
selected.
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 3
background image
PHONES
INPUT SELECTOR
VOLUME
DTS
DOLBY DIGITAL
CLIP INDICATOR
POWER
ON/STANDBY
A
B
SPEAKERS
MUTE
DOWN
UP
DISPLAY MODE
S VIDEO
V
L - AUDIO - R
CD2 / TAPE2
MONITOR
3 4
@
8
6
5
7
# $
^
%
*
&
0
9
!
ON/STANDBY
POWER
ON
OFF
2
1
AV AUX
ST.
TUNED
MUTE
STANDBY indication
1POWER key
(U.S.A., U.S.Military and Canada)
Press to switch power ON and OFF.
2POWER key
(Except for U.S.A., U.S.Military and Canada)
(China :
POWER)
Press to switch the main power ON and OFF.
3ON/STANDBY key
(Except for U.S.A., U.S.Military and Canada)
Press to switch the power mode between
STANDBY and ON.
4STANDBY indicator
Lights in STANDBY mode.
5RC sensor
Receives signals transmitted from the re-
mote control unit.
6PHONES jack
Use for listening audio through headphones.
7SPEAKERS keys
Press each key to switch the SPEAKERS A or
SPEAKERS B ON and OFF.
Stereo indicator
MUTE indicator
TUNED indicator
Multi-mode display
While standby indicator is indicated, a small amount of power is supplied to the system to back up the memory. In this mode, the system can be
turned ON by remote control.
Display
8Indicators
CLIP INDICATOR :
Lights when the input is clipped during
analog to digital signal conversion.
DOLBY DIGITAL :
Lights when Dolby Digital is activated.
DTS :
Lights when the DTS is activated.
9MUTE key
Press to mute the audio temporarily.
0RC transmitter
Sends signals to the remote control unit.
!Indicator
Lights when signal is input from or output to
the remote control unit.
@VOLUME control knob
Rotate to adjust the volume.
#S VIDEO input jack
(Except for the VR-2080 or the KRF-V7771D
for the U.S. Military destination)
Connect the S VIDEO output jack of an AV
component.
$VIDEO input jack
Connect the composite video output (RCA)
jack of an AV component.
%AUDIO (L, R) input jacks
Connect the audio output (RCA) jacks of an AV
component.
^CD2/TAPE2 MONITOR indicator
Lights when the CD2/Tape2 (Monitor) input is
used.
&DISPLAY MODE key
Press to switch the display on the main unit.
*INPUT SELECTOR key
Press to switch the input as shown below.
TUNER
CD1
MD/Tape1
VIDEO1
VIDEO2
VIDEO3
VIDEO4
AV AUX
PHONO
KRF-V7771D/V8881D/VR-2080/2090
3
CONTROLS
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 6
background image
ON/STANDBY
MUTE
VOLUME
ENTER
Setup Surround
SP Level
Surr.SP Type
SP Distance
SP Selection
Tuner
CD1
Video2
Video3
Video4
Video1
TV1
Phono
TV2
CD2
MD/
Tape1
CD2/
Tape2
Input
Digital
Input
Analog
AV AUX
Macro
Remote
Mode
Main
Menu
CONFIRM
Note
Note
Model Type Setup
Model 3
Model 2
Model 1
23
·
ª
£
/
)
¡
(
º
¢
1
6
5
47 8 9 0 ! @ # $ %^ & *
§
TM
RC : Infrared system
Perform "Model Type Setup"
of the RC before using it.
The following menu display ap-
pears after the batteries are
loaded for the first time.
Controls and indicators
The Remote Control unit provided with the Receiver can also control KENWOOD MD recorder, cassette decks, CD player, DVD
player and LD player which are connected to it through system control cords. For details of the controllable functions, refer to
the instruction manuals of these components.
The displayed icons are variable depending of the "Model Type Setup" for
matching specifications with the Reciever which uses the RC unit and "Setup" for
matching specifications with connected source component.
1Segment screen
The fixed icons are displayed in
this area.
2TV1 icon
Select to display the TV1 control
screen.
3Main Menu icon
Select to display the Main Menu
screen.
4TV2 icon
Select to display the TV2 control
screen.
5Phono icon
Select to select the PHONO in-
put.
6Video1 icon
Select to control Video1.
7CD1 icon
Select to control CD1.
8Video2 icon
Select to control Video2.
9CD2 icon
Select to control CD2.
(Room B only)
0Video3 icon
Select to control Video3.
!Tuner icon
Select to control Tuner.
@Video4icon
Select to control Video4.
#MD/Tape1 icon
Select to control MD or Tape1.
$CD2/Tape2 icon
Select to monitor the CD2/Tape2
input. (Room A only)
%AV AUX icon
Select to select the AV AUX in-
put.
^Input Digital icon
Select to play a digital input or to
switch between Auto and Manual.
&Macro icon
Select to control Macro.
*Input Analog icon
Select to play an analog input.
(Remote Mode icon
Select to switch the remote con-
trol operation mode without
changing the selected input.
Segment screen
Operation keys
Menu screen
)Menu screen
Control key icons and con-
trol levels are displayed in
this area.
¡Status display
The example in the illus-
tration shows the "Setup
Surround" status.
TMSP Selection icon
Select to set up the speak-
ers.
£Return icon
Select to return to the pre-
vious menu screen.
¢Status display
Shows the communication
status.
Joy stick key
This key is used to select an
icon. This key can be controlled
in 4 directions.
§ENTER key
Press to enter the selection of
an icon.
¶VOLUME (up) control key
Press to increase the volume.
·VOLUME (down) control
key
Press to decrease the volume.
ªCONFIRM key
Press to select the currently
displayed items.
ºMUTE key
Press to mute the audio
temporarily.
/
(ON/STANDBY) key
Press to turn this unit and the
components connected to it
through system cords between
ON and STANDBY modes.
KRF-V7771D/V8881D/VR-2080/2090
4
CONTROLS
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 7
background image
6
6
3
4
4
9
9
3
3
2
11
12
1
4
3
5 x2
9 x5
8 x2
3 x2
7
13
13
13
14
14
15
10
1
2
2
2
1
x3
2 x3
2
2
x2
x5
2 x2
2
3
3
3
3
1
3
x29
[Remove the bottom plate.]
Make use of the changing final transistor etc.
1. Remove the 19 screws (1, 2) and PCB support, then
remove the bottom plate.
[Check the vertical PCB]
1. (Exist bottom plate) Remove the hook of rear
panel(1).
2. Remove the 29(Exist bottom plate: 34)
screws(2), then remove the rear panel.
3. Connect the GND of the phono terminal, the
GND of antenna shield board,the GND of
coax., the GND of system control shield
board, the GND of SP terminal shield board
and the chassis with 5 wires connected alli-
gator chips(3).
[Remove the escutcheon (operation
panel)]
1. Remove the knob(1), the nut (2), the 11
screws(3, 4, 5) and 2 hooks (6), then
remove the front panel ass'y.
2. Remove the lead wire(7), the 2 screws(8 :
except K,P type) and 7 screws(9) then
remove the PCB.
3. Remove the under front glass(0, -), then
remove the front panel(=) from the sub
panel.
4. Remove the 2 under escutcheon sides(~) by
· screw driver and the 2 hooks(!) then
remove the escutcheon(@).
Fig. 3
Fig. 1
Fig. 2
KRF-V7771D/V8881D/VR-2080/2090
5
DISASSEMBLY FOR REPAIR
KRF-V7771D(K)COVER( 98.12.8 18:58 y[W 10

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