Kenwood-VR-4090-Service-Manual.pdf

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AUDIO VIDEO SURROUND RECEIVER
VR-4080-B/4090-B
VR-4700/4900
SERVICE MANUAL
Knob
Panel
(K29-7729-04) (A60-1777-02)
Front glass
(B10-3571-02)
© 2000-4/B51-5612-00 (K/K) 1380
Knob
(K29-7743-04)
A
SPEAKERS
B
CD 2 / TAPE 2
MONITOR
CLIP
INDICATOR
PRO LOGIC
3 STEREO
DOLBY DIGITAL
DTS
VOLUME CONTROL
STANDBY
MPEG
96kfs
POWER
D.R.I.V.E.
HDCD
INPUT SELECTOR
ON/STANDBY
DOWN
UP
PHONES
S VIDEO
AV AUX
VIDEO
L - AUDIO - R
Phone jack
(E11-0190-05)
Panel
(A29-1085-13)
Indicator
(B12-0391-14)
Knob
(K29-7740-03)
Cylindrical receptacle
(E56-0026-05)
Pin jack
(E63-1121-05)
Cylindrical receptacle
Pin jack
Lock terminal board
AC power cord
Miniature
(E56-0030-05)x2
(E63-1109-05)
(E70-0080-05)
(E30-2944-05)
phone jack
Pin jack
Pin jack
Miniature phone jack
(E11-0907-05)
(E63-1128-05)
(E63-1125-05)x2
(E11-0905-05)
Miniature
AC Power cord
phone jack
bushing
Oscillating module
Pin jack
Pin jack
Miniature phone jack
(E11-0347-05)
(J42-0157-05)
(W02-2717-05)
(E63-1130-05)
(E63-1111-05)x3
(E11-0906-05)
RF REMOTE ANTENNA
S VIDEO
VIDEO
REC
OUT
VIDEO1
PLAY
IN
CD1
DVD
REC
OUT
VIDEO2
PLAY
IN
VIDEO3
PLAY
IN
VIDEO4
PLAY
IN
PLAY
IN
MONITOR
OUT
DVD
FRONT
R
AUDIO
L
SIGNAL
GND
R
AUDIO
L
PRE OUT
FRONT
L
PHONO
R
SL 16
TEXT
L
REC
OUT
MD/
TAPE1
PLAY
IN
REC
OUT
CD2/
TAPE2
MONITOR
PLAY
IN
REC
OUT
CD-R
PLAY
IN
SYSTEM
CONTROL
ANTENNA
GND
AM
IR
REPEATER
OUT
DIGITAL OUT
IR OUT LCD IR RECEIVER IN
REMOTE
DC12V 20mA
SURROUND SPEAKERS
CENTER SPEAKER
R
L C
AC 120V 60Hz
SWITCHED TOTAL
90W 0.75A MAX
CD1
R
SURROUND
CENTER
MD/
TAPE1
CD-R
SUB
WOOFER
B
R
FRONT SPEAKERS
L
R
A
L
VIDEO2
VIDEO3
SURROUND
VIDEO4
OPTICAL
COAXIAL
DIGITAL IN
CENTER
SUBWOOFER
DVD/6 CH. INPUT
Optical receiving module
(W02-2716-05)x7
Pin jack
Screw terminal board
Pin jack
(E63-1119-05)
(E70-0118-05)
(E63-1123-05)
Pin jack
Screw terminal board
Cylindrical receptacle
(E63-1111-05)
(E70-0121-05)
(E56-0028-05)
Pin jack
Pin jack
Pin jack
(E63-1124-05)x2
(E63-1113-05)
(E63-1117-05)
AC outlet
(E03-0148-05)
70%
Illustration is VR-4090-B.
VR-4080-B/4090-B/4700/4900
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2
CONTROLS ................................................................3
DISASSEMBLY FOR REPAIR....................................5
CIRCUIT DESCRIPTION ............................................6
ADJUSTMENT ..........................................................16
WIRING DIAGRAM ...................................................18
PC BOARD .............................................................. 19
SCHEMATIC DIAGRAM .......................................... 32
EXPLODED VIEW ....................................................63
PARTS LIST..............................................................65
SPECIFICATIONS ....................................................77
Accessories
Remote control unit
(A70-1312-05): RC-R0911
2WAY LCD REMOTE CONTROL UNIT
+100
Batteries
AM Loop Antenna
(T90-0852-05)
FM Antenna
(T90-0855-05)
+
12
3
6
9
+
+10
12
45
78
Battery cover(A09-1166-08)
RF remote Antenna
(T90-0850-05)
10
RF REMOTE CONTROL UNIT
RC-R0910
-
-
11
/
/
0
Remote control unit (PowerTouch)
(A70-1349-05): RC-R1110
ENTER
UP
CONFIRM
M
E
VO
DOWN
LU
CONTRAST
ON/STANDBY
REMOTE OFF
Battery cover(A09-1177-08)
Pen(W01-0976-08)
MODEL vs PCB
MODEL
VR-4080-B
VR-4080B
VR-4090-B
VR-4090-B
VR-4700
VR-4700
VR-4900
DESTI
K
P
K
P
K
P
K
X05-510
0-10
0-10
0-10
0-10
0-10
0-10
0-10
X05-513
0-11
0-11
0-11
0-11
0-11
0-11
0-10
X07-315
0-11
0-11
0-10
0-10
0-10
0-10
0-10
X08-302
0-10
0-10
0-10
0-10
0-10
0-10
0-11
X11-387
0-10
0-10
0-11
0-11
0-11
0-11
0-12
X13-770
0-10
0-10
0-11
0-11
0-11
0-11
0-12
X25-632
0-12
0-12
0-11
0-11
0-11
0-11
0-10
X35-223
–
–
–
–
–
–
0-10
X92-219
–
–
–
–
–
–
0-10
Cautions
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic”,“AC-3”, and the double-D symbol are
trademarks of Dolby Laboratories. Confidential Unpub-
lished Works. © 1992-1997 Dolby Laboratories. All rights
reserved.
, HDCD¤, High Definition Compatible Digital¤
and Pacific Microsonics
TM
are either registered trade-
marks or trademarks of Pacific Microsonics, Inc. in
the United States and/or other countries. HDCD sys-
tem manufactured under license from Pacific Micro-
sonics, Inc. This product is covered by one or more
of the following: IN the USA: 5,479,168, 5,638,074,
5,640,161, 5,808,574, 5,838,274, 5,854,600,
5,864,311, 5,872,531, and in Australia: 669114. Other
patents pending.
Manufactured under license from Digital Theater Sys-
tems, Inc. US Pat. No. 5,451,942 and other world-
wide patents issues and pending. “DTS” and “DTS
Digital Surround” are trademarks of Digital Theater
Systems, Inc. © 1996 Digital Theater Systems, Inc.
All rights reserved.
2
Main unit
What's on the Front Panel of Your Kenwood Audio-Video Receiver?
Remote control
What's on Remot Control unit?
1. LCD indicators
2. LCD function key 2
3. LCD function key 1
4. CONFIRM/SHIFT key
5. MACRO key
6. AV.POWER key (AV device Power key)
7. AV device control keys
£
: Play
4
,
¢
: Skip
8
: Pause
7
: Stop
8. CH.(+/-)key (AV device control keys)
9. SOUND (INPUT MODE) key
10. LISTEN M.(DIMMER) key
11. TITLE/GUIDE key (AV device control key)
12.
5Cursor
up (8 PAUSE)key
Cursor down (AUTO/MONO,
7
STOP) key
left,right (TUNING)keys
ENTER (BAND)(Play)key
13. RETURN/PAGE key (AV device control key)
14. REC (Recording)(REC MODE) key5
15. Numeric keys (AV device control keys)
16. LCD cursor up/down keys
17. Input selector keys
MUSIC: Audio device selector key
MOVIE: Video device selector key
TV: TV/video monitor selector key
18. SYS.POWER (Receiver power)key
19. VOL.(+/-)keys
20. MUTE key
21. SUB W.(STATUS)key
22. MENU key (AV device control keys)
23. OSD/PAGE
5
key (AV device control key)
24. LEARN key
25. F.SHIFT (Backlight)key
2
2
1
25
24
A
SPEAKERS
B
CD 2 / TAPE 2
MONITOR
23 22
21
20
19
2WAY LCD REMOTE CONTROL UNIT
CLIP
INDICATOR PRO LOGIC
3 STEREO
1
2
VOLUME CONTROL
KRF-V7773D
DOLBY DIGITAL
DTS
STANDBY
18
17
3
4
5
MUSIC
MOVIE
AV POWER
CONFIRM/SHIFT
MACRO
MPEG
96kfs
POWER
D.R.I.V.E.
HDCD
INPUT SELECTOR
16
TV
ON/STANDBY
ON/STANDBY
POWER
DOWN
UP
17
18
ON
OFF
SYS.POWER
PHONES
S VIDEO
AV AUX
VIDEO
L - AUDIO - R
6
7
8
9
CH.
CH.
CONTROLS
Keys behind
the door
A
SPEAKERS
B
INPUT CD 2/TAPE 2 LISTEN
MODE MONITOR MODE
SET UP
SOUND
MULTI
CONTROL
P.CALL
MEMORY
AUTO
BAND
+
VOL.
VOL.
+
-
MUTE
INPUT MODE
SOUND
TUNING
-
19
20
21
22
OSD
/PAGE
MENU
3
4
5
6 8
10 11
7 9
12 13 15
14
16
10
11
12
13
14
DIMMER
LISTEN M.
TITLE/GUIDE
STATUS
SUB W.
BAND
ENTER
RETURN
/PAGE
AUTO/MONO
F.SHIFT
RANDOM
LEARN
INPUT SEL.
1. STANDBY indicator light
2. POWER ON/STANDBY key
(VR-4090/VR-4080)
ON/STANDBY key
(KRF-V7773D)
3. POWER ON /OFF switch (KRF-V7773D)
4. PHONES jack
5. SPEAKERS A/B key
6. INPUT MODE key
7. CD 2/TAPE 2/MONITOR key
8. LISTEN MODE key
9. SET UP key
10. SOUND key
11. MULTI CONTROL (Up/Down) key
12. P.CALL (Up/Down) key
13. MEMORY key
14. AUTO key
15. BAND key
16. AV AUX input jacks
17. VOLUME CONTROL knob
18. INPUT SELECTOR key
19. Indicators
CLIP INDICATOR
PRO LOGIC
3 STEREO
20. Indicators
DTS /96 k fs /HDCD
DOLBY DIGITAL /MPEG /D.R.I.V.E.
21. D I S P LAY
22. 2-way communication indicator
23. Infrared remote sensor (KRF-V7773D only)
24. Indicators
SPEAKERS A/B
CD 2/TAPE 2 MONITOR
25. Infrared remote transmitter
Key 5 to 15 are located inside the panel door.
23
24
25
VR-4080-B/4090-B/4700/4900
REC MODE
REC
REPEAT
TV SELECT
DISPLAY
SELECT
15
AUDIO
THEME
FAVORITE
INFO.
EXIT
LAST CHANNEL
REMOTE CONTROL UNIT
How to operate the F.SHIFT key:
In addition to the functions marked on the remote control keys,those marked in blue characters above the keys can be used.
To use these functions,press the F.SHIFT key then press the desired key within 8 seconds. (Example)To use the REPEAT
function,press the F.SHIFT key then press key 1 (REPEAT).
Standby mode
While the standby indicator of the unit is lit,a small amount of current is flowing into the unit
ﾕs
internal circuitry to back up the
memory.This condition is referred to as the standby mode of the unit.While the unit is in the standby mode,it can be turned ON
from the remote control unit.
3
VR-4080-B/4090-B/4700/4900
e
mo
mu
VO
L
so
MUTE
DOWN
l
ist
en
ma
4
What’s on Power Touch?
8
9
10
1. Joystick
2. Confirm button
LCD Indicators
6
2WAY LCD REMOTE CONTROL UNIT
1
di
3. Mute button
t
ENTER
vie
4. Volume up/down button
5. Contrast button
6. On/Standby button
7. Backlight button
8. Quick Access menu
9. Touch screen display
SYS.POWER
BACKLIGHT
1
2
REC
5
2
3
4
sic
un
CONFIRM
E
UM
UP
d
mode
cro
CONTROLS
CONTRAST
10. Stylus (stored on top edge)
3
5
6
7
4
(RC-R1110)
1. Playback/recording mode indicators
REC
`Play
indicator/
8
:Pause indicator/
:Record indicator/
7
:Stop indicator
2. Character display
Shows various information such as the input device name and track number.
3. Current function of LCD function key 1
4. Current function of LCD function key 2
5. Communication indicators
:Sending. :Receiving.
6.Battery indicator
"
"appears when the batteries are nearly exhausted.In this case, replace all of the four batteries together.
To switch the menu:
The menu can be switched over or selected while LCD function key 1 and/or 2 are displayed.
(Examples:Home,Back,Menu,Enter,etc.)
VR-4080-B/4090-B/4700/4900
DISASSEMBLY FOR REPAIR
HOW TO REMOVE THE FRONT PANEL AND THE MOTOR.
1. Take out the connectors (1) {X07,CN1/X13(CN7,CN8)} and
the AC connetor(2).
2. Take the lead (3) out of CN301 on X11(A/4) PCB.
3. Take out the screws (4) and (5).
4. The front panel can be separated by removing 2 hooks (6)
on the sub panel.
5. To separate the motor from the front panel, remove the
screws (7).
2
MOTOR
AC CONNECTOR
X07,CN1
1
7
x5
4
4
x5
1
1
X13
X25
(G/8)
CN7
CN8
H/P
PCB
3
X11
(A/4)
CN301
6
x2 HOOK
5
x5
5
HOW TO REPLACE THE POWER TRANSISTOR.
1. The rear panel can be separated by removing screws (1)
on the rear panel.
2. Take the AC connector out of CN2 on the X07(C/7).
3. To separate the chassis from bottom chassis, remove the
screws (2).
4. Remove CN21 and screws (3) on X13(C/5).
5. Remove screws (4 to
7).
6. The fan motor can be separated by removing screws (8)
and the connector (CN12) on X07 PCB.
7. Take the PCB X25(B/9), X11(C/4)} out of X07.
8. To separate the main PCB (X07) from the bottom chassis,
remove screws (0).
9. Set up the PCB as figure (-).
10. Replace the defective transistors.
5
(C/9)
X25
X05-5130-11
4
7
7
x2
7
6
6
X13
(C/5)
CN21
3
x2
8
x9
3
x2
2
9
X07
CN12
2
2
2
2
2
2
X07-3150-10
(A/5)
11
10
10
10
CN2
CN14
10
10
X07
(C/7)
CN6
X25
(B/9)
X11
(C/4)
10
x3
1
x70
5

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