Kenwood VR-4090-B User manual

STANDBY
ON / STANDBY
PHONES
DOLBY DIGITAL DTS
MPEG 96kfs
D.R.I.V.E. HDCD INPUT SELECTOR
VOLUME CONTROL
DOWN UP
S VIDEO VIDEO L - AUDIO - R
ASPEAKERS CD 2 / TAPE 2
MONITOR
BCLIP
INDICATOR PRO LOGIC 3 STEREO
AV AUX
POWER
DIGITAL OUT
DVD
CD1
MD/
TAPE1
CD-R
VIDEO2
VIDEO3
VIDEO4
OPTICAL
DIGITAL IN COAXIAL
S VIDEO VIDEO
REC
OUT
PLAY
IN
REC
OUT
PLAY
IN
PLAY
IN
PLAY
IN
PLAY
IN
MONITOR
OUT
SURROUND
CENTER SUBWOOFER
DVD/6 CH. INPUT
VIDEO4
VIDEO3
VIDEO2
VIDEO1
DVD
FRONT
R L AUDIO
SIGNAL
GND
R L
L
R
L
R
AUDIO PRE OUT
RF REMOTE ANTENNA
SYSTEM
CONTROL
PHONO
CD1
REC
OUT
PLAY
IN
MD/
TAPE1
REC
OUT
PLAY
IN
CD-R
CENTER
FRONT
SURROUND
SUB
WOOFER
REC
OUT
PLAY
IN
CD2/
TAPE2
MONITOR
SL 16
TEXT
REMOTE
IR OUT LCD IR RECEIVER IN
SURROUND SPEAKERS CENTERSPEAKER
DC12V 20mA
IR
REPEATER
OUT
R L
FRONT SPEAKERS
BLR A
R L
CAC 120V 60Hz
SWITCHED TOTAL
90W 0.75A MAX
ANTENNA GND AM
Knob
(K29-7729-04) Panel (A60-1777-02) Front glass (B10-3571-02)
Indicator
(B12-0391-14) Knob (K29-7740-03)
Phone jack
(E11-0190-05) Panel (A29-1085-13)
Knob
(K29-7743-04)
Cylindrical receptacle
(E56-0026-05) Pin jack (E63-1121-05)
Optical receiving module
(W02-2716-05)x7 Pin jack
(E63-1119-05)
AC Power cord
bushing
(J42-0157-05)
Pin jack
(E63-1130-05) Pin jack (E63-1111-05)x3 Miniature phone jack (E11-0906-05)
Pin jack
(E63-1125-05)x2
Pin jack
(E63-1109-05)
Pin jack
(E63-1111-05)
Oscillating module
(W02-2717-05)
Pin jack
(E63-1123-05)
Miniature
phone jack
(E11-0347-05)
Miniature phone jack
(E11-0905-05)
Pin jack
(E63-1128-05)
Screw terminal board
(E70-0118-05) AC outlet
(E03-0148-05)
Illustration is VR-4090-B.
Cylindrical receptacle
(E56-0028-05)
AUDIO VIDEO SURROUND RECEIVER
VR-4080-B/4090-B
VR-4700/4900
SERVICE MANUAL © 2000-4/B51-5612-00 (K/K) 1380
70%
Pin jack
(E63-1113-05)
Pin jack
(E63-1124-05)x2
Screw terminal board
(E70-0121-05)
Pin jack
(E63-1117-05)
Miniature
phone jack
(E11-0907-05)
Lock terminal board
(E70-0080-05)
Cylindrical receptacle
(E56-0030-05)x2 AC power cord (E30-2944-05)

RFREMOTE CONTROL UNIT
RC-R0910
2WAYLCD REMOTE CONTROL UNIT
+
-
+
-
12 3 45 6 78 9
10 11 12
+10 0 +100
/
/
Batteries AM Loop Antenna
(T90-0852-05)
RF remote Antenna
(T90-0850-05)
FM Antenna
(T90-0855-05)
Battery cover(A09-1166-08)
Battery cover(A09-1177-08)
Pen(W01-0976-08)
Remote control unit
(A70-1312-05): RC-R0911
ENTER
V
O
L
U
M
E
UP
DOWN
CONFIRM
ON/STANDBYCONTRAST REMOTEOFF
Remote control unit (PowerTouch)
(A70-1349-05): RC-R1110
VR-4080-B/4090-B/4700/4900
2
CONTENTS / ACCESSORIES / CAUTIONS
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
Contents
Accessories
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.
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.
, HDCD¤, High Definition Compatible Digital¤
and Pacific Microsonics 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.
TM
MODEL vs PCB
MODEL DESTI X05-510 X05-513 X07-315 X08-302 X11-387 X13-770 X25-632 X35-223 X92-219
VR-4080-B K 0-10 0-11 0-11 0-10 0-10 0-10 0-12 ––
VR-4080B P 0-10 0-11 0-11 0-10 0-10 0-10 0-12 ––
VR-4090-B K 0-10 0-11 0-10 0-10 0-11 0-11 0-11 ––
VR-4090-B P 0-10 0-11 0-10 0-10 0-11 0-11 0-11 ––
VR-4700 K 0-10 0-11 0-10 0-10 0-11 0-11 0-11 ––
VR-4700 P 0-10 0-11 0-10 0-10 0-11 0-11 0-11 ––
VR-4900 K 0-10 0-10 0-10 0-11 0-12 0-12 0-10 0-10 0-10

VR-4080-B/4090-B/4700/4900
3
CONTROLS
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.
What's on the Front Panel of Your Kenwood Audio-Video Receiver?
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.
STANDBY
ON / STANDBY
PHONES
DOLBY DIGITAL DTS
MPEG 96kfs
D.R.I.V.E. HDCD INPUT SELECTOR
VOLUME CONTROL
DOWN UP
S VIDEO VIDEO L - AUDIO - R
A
SPEAKERS B
INPUT
MODE CD 2/TAPE 2 MONITOR LISTEN MODE SET UP SOUND MULTI
CONTROL P.CALL MEMORY AUTO BAND
A
SPEAKERS CD 2 / TAPE 2
MONITOR
B
CLIP
INDICATOR PRO LOGIC 3 STEREO
AV AUX
122
3 4 5 6 8
10 11 12 13 15 16
17
18
1920212324
14 7 9
POWER
POWER
ON
/
STANDBY
ON OFF
KRF-V7773D
2225
Keys behind
the door
Main unit
What's on Remot Control unit?
Remote control
2WAY LCD REMOTE CONTROL UNIT
MUSIC MOVIE TV
CONFIRM/SHIFT
AV POWER SYS.POWER
TITLE/GUIDE
MENU
MACRO
F.SHIFT
+
-
+
-
REC
REC MODE
LEARN
SOUND
TUNING
BAND
LISTEN M.
INPUT MODE STATUS
DIMMER
SUB W.
MUTE
ENTER
AUTO/MONO
REPEAT RANDOM INPUT SEL.
TV SELECT DISPLAY SELECT
AUDIO THEME FAVORITE
INFO. EXIT
LAST CHANNEL
REMOTE CONTROL UNIT
CH.
CH.
VOL.
VOL.
RETURN
/PAGE
OSD
/PAGE
1
23
45
6
7
98
11 10
13 14
12
15
18
20
22
24
16
17
19
21
23
25
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 (8PAUSE)key
Cursor down (AUTO/MONO, 7STOP) 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 5key (AV device control key)
24. LEARN key
25. F.SHIFT (Backlight)key
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).

VR-4080-B/4090-B/4700/4900
4
CONTROLS
LCD Indicators
1. Playback/recording mode indicators
`Play indicator/ 8:Pause indicator/ ¶
REC :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.)
2WAY LCD REMOTE CONTROL UNIT
REC
3 4
51
2
6
What’s on Power Touch?
(RC-R1110)
ENTER
V
O
L
U
M
E
UP
DOWN
MUTE
SYS.POWERCONTRAST BACKLIGHT
e
d
i
t
m
o
v
i
e
m
u
s
i
c
s
o
u
n
d
l
i
s
t
e
n
m
o
d
e
m
a
c
r
o
CONFIRM
1
2
3
4
567
8
10
9
1. Joystick
2. Confirm button
3. Mute button
4. Volume up/down button
5. Contrast button
6. On/Standby button
7. Backlight button
8. Quick Access menu
9. Touch screen display
10. Stylus (stored on top edge)

x2
x5
x5
7
44
111
3
2
6
x5
5
5
HOOK
X11
(A/4) CN301
CN7
CN8
X13
X07,CN1
MOTOR AC CONNECTOR
H/P
PCB
X25
(G/8)
VR-4080-B/4090-B/4700/4900
5
DISASSEMBLY FOR REPAIR
1x70
X07
(C/7)
CN2
X25
(C/9) X05-5130-11
X07
X13
(C/5)
CN12
CN21
4
5
77
8
33
2
2
2
2
2
2
9
6
6
7
x9
x2
2
x2
x2
X07-3150-10
(A/5)
X25
(B/9)
X11
(C/4)
10 x3
10
10
11
10
10 10
CN14 CN6
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).
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 (4to 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.
HOW TO REPLACE THE POWER TRANSISTOR.
HOW TO REMOVE THE FRONT PANEL AND THE MOTOR.