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AUDIO VIDEO SURROUND RECEIVER
VR-4080-B/4090-B
VR-4700/4900
SERVICE MANUAL © 2000-4/B51-5612-00 (K/K) 1380
Knob Panel Front glass Knob
(K29-7729-04) (A60-1777-02) (B10-3571-02) (K29-7743-04)
CD 2 / TAPE 2 CLIP
A SPEAKERS B MONITOR INDICATOR PRO LOGIC 3 STEREO
DOLBY DIGITAL DTS VOLUME CONTROL
MPEG 96kfs
STANDBY
POWER D.R.I.V.E. HDCD
INPUT SELECTOR
ON/STANDBY
DOWN UP
AV AUX
S VIDEO VIDEO L - AUDIO - R
PHONES
Phone jack Panel Indicator Knob Cylindrical receptacle Pin jack
(E11-0190-05) (A29-1085-13) (B12-0391-14) (K29-7740-03) (E56-0026-05) (E63-1121-05)
Cylindrical receptacle Pin jack Lock terminal board AC power cord
(E56-0030-05)x2 (E63-1109-05) Miniature (E70-0080-05) (E30-2944-05)
phone jack
Pin jack Pin jack (E11-0907-05) Miniature phone jack
(E63-1128-05) (E63-1125-05)x2 (E11-0905-05)
Miniature AC Power cord
Oscillating module Pin jack Pin jack phone jack Miniature phone jack bushing
(W02-2717-05) (E63-1130-05) (E63-1111-05)x3 (E11-0347-05) (E11-0906-05) (J42-0157-05)
RF REMOTE ANTENNA
SIGNAL IR
GND REPEATER
OUT
S VIDEO VIDEO R AUDIO L R AUDIO L PRE OUT
FRONT
REC L ANTENNA GND AM
OUT SYSTEM
DIGITAL OUT CONTROL IR OUT LCD IR RECEIVER IN
VIDEO1
PHONO
PLAY R
IN
REMOTE DC12V 20mA
SL 16
CD1 TEXT SURROUND SPEAKERS CENTER SPEAKER
REC R L C AC 120V 60Hz
DVD OUT L SWITCHED TOTAL
90W 0.75A MAX
VIDEO2 REC
PLAY OUT
CD1 R
IN
MD/ SURROUND
TAPE1 CENTER
VIDEO3
MD/
TAPE1 PLAY PLAY
IN IN
VIDEO4 REC
OUT
CD-R PLAY CD2/
IN SUB B FRONT SPEAKERS A
TAPE2 WOOFER R L
MONITOR R L
VIDEO2 PLAY DVD
IN PLAY
FRONT IN
REC
MONITOR OUT
VIDEO3 OUT
SURROUND
CD-R
VIDEO4
PLAY
IN
CENTER SUBWOOFER
OPTICAL COAXIAL
DVD/6 CH. INPUT
DIGITAL IN
Optical receiving module Pin jack Pin jack Screw terminal board AC outlet
(W02-2716-05)x7 (E63-1123-05) (E63-1119-05) (E70-0118-05) (E03-0148-05)
Cylindrical receptacle Pin jack Screw terminal board
(E56-0028-05) (E63-1111-05) (E70-0121-05)
Pin jack Pin jack Pin jack
(E63-1124-05)x2 (E63-1113-05) (E63-1117-05) 70%
Illustration is VR-4090-B.
VR-4080-B/4090-B/4700/4900
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2 PC BOARD .............................................................. 19
CONTROLS ................................................................3 SCHEMATIC DIAGRAM .......................................... 32
DISASSEMBLY FOR REPAIR....................................5 EXPLODED VIEW ....................................................63
CIRCUIT DESCRIPTION ............................................6 PARTS LIST..............................................................65
ADJUSTMENT ..........................................................16 SPECIFICATIONS ....................................................77
WIRING DIAGRAM ...................................................18
Accessories
Remote control unit Batteries AM Loop Antenna FM Antenna
(A70-1312-05): RC-R0911 (T90-0852-05) (T90-0855-05)
+100
2WAY LCD REMOTE CONTROL UNIT
12
3
6
9
+
RF REMOTE CONTROL UNIT
-
RC-R0910
11
/
/
0
+
12
45
78
+10
-
10
Battery cover(A09-1166-08)
RF remote Antenna Remote control unit (PowerTouch)
(T90-0850-05) (A70-1349-05): RC-R1110
ENTER
UP
CONFIRM E
M
LU
VO
DOWN
CONTRAST ON/STANDBY REMOTE OFF
Battery cover(A09-1177-08)
Pen(W01-0976-08)
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
Cautions
Manufactured under license from Dolby Laboratories. , HDCD¤, High Definition Compatible Digital¤
"Dolby", "Pro Logic","AC-3", and the double-D symbol are and Pacific MicrosonicsTM are either registered trade-
trademarks of Dolby Laboratories. Confidential Unpub- marks or trademarks of Pacific Microsonics, Inc. in
lished Works. © 1992-1997 Dolby Laboratories. All rights the United States and/or other countries. HDCD sys-
reserved. 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 Remote control
What's on the Front Panel of Your Kenwood Audio-Video Receiver? What's on Remot Control unit?
1. LCD indicators
2. LCD function key 2
2 2 1 25 24 23 22 21 20 19 3. LCD function key 1
2WAY LCD REMOTE CONTROL UNIT 4. CONFIRM/SHIFT key
5. MACRO key
CLIP
6. AV.POWER key (AV device Power key)
CD 2 / TAPE 2
1
A SPEAKERS B MONITOR INDICATOR PRO LOGIC 3 STEREO
7. AV device control keys
2 £ : Play
KRF-V7773D 4 , ¢ : Skip
DOLBY DIGITAL DTS VOLUME CONTROL 18 3 8 : Pause
4 16 7 : Stop
MPEG 96kfs
STANDBY
POWER D.R.I.V.E. HDCD CONFIRM/SHIFT MACRO
17
INPUT SELECTOR
8. CH.(+/-)key (AV device control keys)
ON/STANDBY ON/STANDBY
5 9. SOUND (INPUT MODE) key
17
POWER
MUSIC MOVIE TV
ON OFF
DOWN UP
10. LISTEN M.(DIMMER) key
AV AUX
AV POWER SYS.POWER
11. TITLE/GUIDE key (AV device control key)
6 18
S VIDEO VIDEO L - AUDIO - R
PHONES
12. 5Cursor up (8 PAUSE)key
Cursor down (AUTO/MONO, 7 STOP) key
7 left,right (TUNING)keys
CONTROLS
Keys behind A SPEAKERS B INPUT CD 2/TAPE 2 LISTEN MULTI
P.CALL MEMORY AUTO BAND + + ENTER (BAND)(Play)key
MODE MONITOR MODE SET UP SOUND CONTROL
CH. VOL.
the door 8 CH. VOL.
19 13. RETURN/PAGE key (AV device control key)
- - 14. REC (Recording)(REC MODE) key5
9 DIMMER
MUTE
INPUT MODE STATUS 20 15. Numeric keys (AV device control keys)
3 4 5 6 8 10 11 12 13 15 16 10 LISTEN M.
TITLE/GUIDE
SOUND SUB W.
MENU 21
16. LCD cursor up/down keys
17. Input selector keys
11
TUNING
7 9 14 BAND 22 MUSIC: Audio device selector key
12 ENTER
MOVIE: Video device selector key
RETURN OSD
23
VR-4080-B/4090-B/4700/4900
/PAGE /PAGE
1. STANDBY indicator light 17. VOLUME CONTROL knob TV: TV/video monitor selector key
13
24
AUTO/MONO
2. POWER ON/STANDBY key 18. INPUT SELECTOR key REC MODE
18. SYS.POWER (Receiver power)key
(VR-4090/VR-4080) 19. Indicators 14 REC F.SHIFT LEARN
19. VOL.(+/-)keys
ON/STANDBY key CLIP INDICATOR
REPEAT RANDOM INPUT SEL. 25 20. MUTE key
(KRF-V7773D) PRO LOGIC TV SELECT DISPLAY SELECT 21. SUB W.(STATUS)key
3. POWER ON /OFF switch (KRF-V7773D) 3 STEREO AUDIO THEME FAVORITE
22. MENU key (AV device control keys)
4. PHONES jack 20. Indicators 15 INFO. EXIT LAST CHANNEL
23. OSD/PAGE 5 key (AV device control key)
5. SPEAKERS A/B key DTS /96 k fs /HDCD 24. LEARN key
6. INPUT MODE key DOLBY DIGITAL /MPEG /D.R.I.V.E. 25. F.SHIFT (Backlight)key
7. CD 2/TAPE 2/MONITOR key 21. D I S P LAY
8. LISTEN MODE key 22. 2-way communication indicator REMOTE CONTROL UNIT
9. SET UP key 23. Infrared remote sensor (KRF-V7773D only)
10. SOUND key 24. Indicators
11. MULTI CONTROL (Up/Down) key SPEAKERS A/B
12. P.CALL (Up/Down) key CD 2/TAPE 2 MONITOR How to operate the F.SHIFT key:
13. MEMORY key 25. Infrared remote transmitter In addition to the functions marked on the remote control keys,those marked in blue characters above the keys can be used.
14. AUTO key To use these functions,press the F.SHIFT key then press the desired key within 8 seconds. (Example)To use the REPEAT
15. BAND key Key 5 to 15 are located inside the panel door. function,press the F.SHIFT key then press key 1 (REPEAT).
16. AV AUX input jacks
Standby mode
While the standby indicator of the unit is lit,a small amount of current is flowing into the unit 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
4
What's on Power Touch? LCD Indicators
8 9 6
10 1. Joystick
2. Confirm button 2WAY LCD REMOTE CONTROL UNIT
1 3. Mute button
di
t REC
4. Volume up/down button 1 5
e
ENTER vie
mo
sic 5. Contrast button
2
mu
CONFIRM
E
UP
un
d
6. On/Standby button 2
so
UM
L
VO
mode
3 7. Backlight button
l ist en
MUTE
cro
CONTROLS
ma
DOWN
8. Quick Access menu
4 9. Touch screen display
CONTRAST SYS.POWER BACKLIGHT
10. Stylus (stored on top edge)
3 4
5 6 7
1. Playback/recording mode indicators
(RC-R1110) 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).
2
4. The front panel can be separated by removing 2 hooks (6) MOTOR
AC CONNECTOR
on the sub panel.
X07,CN1
5. To separate the motor from the front panel, remove the 1 1
screws (7). 7 x5 1
4
4 x5
X13
CN7
X25 CN8
(G/8)
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) 5
X25
(C/9)
on the rear panel. X05-5130-11
4
2. Take the AC connector out of CN2 on the X07(C/7).
7 7
3. To separate the chassis from bottom chassis, remove the 7 x2
X13
6
screws (2). (C/5) CN21
6
4. Remove CN21 and screws (3) on X13(C/5). 3 x2
3 x2
5. Remove screws (4 to 7). 8 x9
6. The fan motor can be separated by removing screws (8)
and the connector (CN12) on X07 PCB.
2
7. Take the PCB X25(B/9), X11(C/4)} out of X07. 9
X07 2
8. To separate the main PCB (X07) from the bottom chassis, 2
CN12
remove screws (0). 2
2
9. Set up the PCB as figure (-).
2
10. Replace the defective transistors. 2
X07-3150-10
(A/5)
11
10 10
10
10
10
CN2
CN14
X07 CN6 X25
(C/7) (B/9)
X11
(C/4)
10 x3
1 x70
5
VR-4080-B/4090-B/4700/4900
CIRCUIT DESCRIPTION
1. Initialization
1-1 The Initial Setting
· Midnight Mode : Off
· Insert the power cord to AC wall outlet by pressing the
· Distance : FL/FR :10ft
"POWER" key.
:C :10ft
1-2 The Initial Condition
: RS/LS : 5ft
· Power On/Off : Off
: SW :10ft
· Volume Level : -66dB
· Front Speaker : Large
· Audio Input Selector : TUNER
· Center Speaker : Normal
· Video Signal Input Selector : VIDEO1
· Surround Speaker : Normal
· Remote Control Sensor : Data Front In
· Subwoofer : On
· S