KENWOOD KRF-V7020W Service Manual

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Service Manual for KENWOOD KRF-V7020W, downloadable as a PDF file.

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background image
AUDIO VIDEO SURROUND RECEIVER
KRF-V5020/V5020E/V5020W/V5020(S)
KRF-V6020/V6020E/V6020W/
KRF-V7020/V7020E/V7020W/
VR-305/306/355
SERVICE MANUAL
© 1998-12/B51-5497-00 (K/K) 3444
A
SPEAKERS
B
BASS BOOST
VIDEO 2/
MONITOR
SOURCE
DIRECT
LISTEN MODE
SOUND
SETUP
MULTI CONTROL
INPUT SELECTOR
VOLUME CONTROL
DOWN
UP
STANDBY
AV SURROUND RECEIVER
ON / STANDBY
PHONES
- ON ­ OFF
POWER
PTY
TA/NEWS
DISPLAY
BAND
AUTO
MEMORY
REC OUT
PHONO
CD
MD / TAPE
VIDEO 2/MONITOR
PLAY IN REC OUT
PLAY IN
L
R
VIDEO 1
VIDEO 2
FRONT
DVD 6CH. INPUT
SURROUND
CENTER
SUB
WOOFER
PLAY IN
VIDEO 1
VIDEO 2
VIDEO OUT
VIDEO IN
MONITOR
AM
ANTENNA
FM
75W
GND
CENTER
SPEAKER
FRONT
SPEAKERS
C
L
R
+
-
SUB
WOOFER
SURROUND
PRE OUT
CENTER
L
R
SURROUND SPEAKERS
FRONT SPEAKERS
AC OUTLET
L
R
+
+
--
+
+
--
L
R
B
(
)
SYSTEM CONTROL
SL16
(XS8)
Front glass
(B10-3425-02)
AC power cord*
(E30-)
Phono jack*
(E63-)
Phono jack*
(E63-)
Phono jack(3Px2)*
(E63-)
Phono jack*
(E63-)
Phono jack(4Px2)*
(E63-)
Power cord bushing
(J42-0083-05)
AC outlet*
(E03-)
Phone jack*
(E11-)
Knob*
(K27-)
Knob*
(K29-)
Knob*
(K29-)
Foot*
(J02-)
Phono jack
(E63-0114-05)
Lock terminal board*
(E70-)
Lock terminal board*
(E70-)
Lock terminal board*
(E70-)
Metallic cabinet*
(A01-)
KENWOOD badge
(B43-0302-04)
Miniature phone jack* (2P)
(E11-)
Slide switch
(S62-0034-04)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Illustration is KRF-V5020.
* Refer to parts list on page 23~.
On the Block diagram, backup data, Initial state and system microprocessor, refer to the KRF-V5010
service manual (B51-5425-00)
background image
AUDIO VIDEO SURROUND RECEIVER
KRF-V5020/V5020E/V5020W/V5020(S)
KRF-V6020/V6020E/V6020W/
KRF-V7020/V7020E/V7020W/
VR-305/306/355
SERVICE MANUAL
© 1998-12/B51-5497-00 (K/K) 3444
A
SPEAKERS
B
BASS BOOST
VIDEO 2/
MONITOR
SOURCE
DIRECT
LISTEN MODE
SOUND
SETUP
MULTI CONTROL
INPUT SELECTOR
VOLUME CONTROL
DOWN
UP
STANDBY
AV SURROUND RECEIVER
ON / STANDBY
PHONES
- ON ­ OFF
POWER
PTY
TA/NEWS
DISPLAY
BAND
AUTO
MEMORY
REC OUT
PHONO
CD
MD / TAPE
VIDEO 2/MONITOR
PLAY IN REC OUT
PLAY IN
L
R
VIDEO 1
VIDEO 2
FRONT
DVD 6CH. INPUT
SURROUND
CENTER
SUB
WOOFER
PLAY IN
VIDEO 1
VIDEO 2
VIDEO OUT
VIDEO IN
MONITOR
AM
ANTENNA
FM
75W
GND
CENTER
SPEAKER
FRONT
SPEAKERS
C
L
R
+
-
SUB
WOOFER
SURROUND
PRE OUT
CENTER
L
R
SURROUND SPEAKERS
FRONT SPEAKERS
AC OUTLET
L
R
+
+
--
+
+
--
L
R
B
(
)
SYSTEM CONTROL
SL16
(XS8)
Front glass
(B10-3425-02)
AC power cord*
(E30-)
Phono jack*
(E63-)
Phono jack*
(E63-)
Phono jack(3Px2)*
(E63-)
Phono jack*
(E63-)
Phono jack(4Px2)*
(E63-)
Power cord bushing
(J42-0083-05)
AC outlet*
(E03-)
Phone jack*
(E11-)
Knob*
(K27-)
Knob*
(K29-)
Knob*
(K29-)
Foot*
(J02-)
Phono jack
(E63-0114-05)
Lock terminal board*
(E70-)
Lock terminal board*
(E70-)
Lock terminal board*
(E70-)
Metallic cabinet*
(A01-)
KENWOOD badge
(B43-0302-04)
Miniature phone jack* (2P)
(E11-)
Slide switch
(S62-0034-04)
Knob*
(K29-)
Knob*
(K29-)
Knob*
(K29-)
Illustration is KRF-V5020.
* Refer to parts list on page 23~.
On the Block diagram, backup data, Initial state and system microprocessor, refer to the KRF-V5010
service manual (B51-5425-00)
background image
Remote Controller
Model
Destinations
Parts number
Model name
Battery Cover
KRF-V5020
I5, M5, X5, Y5
A70-1264-05
RC-R0711
A09-1123-08
KRF-V5020
E1
A70-1265-05
RC-R0710
A09-1123-08
KRF-V5020
T5
A70-1265-05
RC-R0710
A09-1123-08
KRF-V5020(S)
E2
A70-1265-05
RC-R0710
A09-1123-08
KRF-V5020E
E3
A70-1265-05
RC-R0710
A09-1123-08
KRF-V5020W
Q5
A70-1265-05
RC-R0710
A09-1123-08
KRF-V6020
C6, I6, M6, X6
A70-1264-05
RC-R0711
A09-1123-08
KRF-V6020
E4
A70-1275-05
RC-R0508
A09-0366-08
KRF-V6020E
E5
A70-1265-05
RC-R0710
A09-1123-08
KRF-V6020W
Q6
A70-1265-05
RC-R0710
A09-1123-08
KRF-V7020
E7, T7
A70-1275-05
RC-R0508
A09-0366-08
KRF-V7020E
E8
A70-1275-05
RC-R0508
A09-0366-08
KRF-V7020W
Q7
A70-1275-05
RC-R0508
A09-0366-08
VR-305
K2, P2
A70-1264-05
RC-R0711
A09-1123-08
VR-306
K1, P1
A70-1264-05
RC-R0711
A09-1123-08
VR-355
K3, P3
A70-1271-05
RC-R0608
A09-0366-08
FM
(T90-0836-05)
indoor antenna
AC plug adaptor (1)
(E03-0115-05)
(1)
Loop antenna stand (1)
AM loop antenna (1) (T90-0833-05)
(J19-3645-05)
Batteries (R03/AAA) (4)
Remote control unit (1)
RC-R0508/R0608
Remote control unit (1)
RC-R0710/R0711
Batteries (R06/AA) (2)
AUDIO
SHIFT
MACRO
TV
VIDEO
GUIDE
REC
MUTE
VOLUME
TUNING/SKIP
THEME
FAV
MENU
FUNCTION
SHIFT
SETUP
INFO
ALT
AUD
TV/SAT/VID
REPEAT
RANDOM
+100
DISPLAY
ENT
+10
LISTEN
MODE
SOUND
SUBWOOFER
23
1
56
4
89
7
0
REMOTE
CONTROL
UNIT
8
7
4¢
6
BAND
P.
CALL
P.
CALL
POWER
*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-V5020/V6020/V7020/VR-305/306/355
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES ....................................2
DISASSEMBLY FOR REPAIR .....................................3
ADJUSTMENT ............................................................ 4
WIRING DIAGRAM ......................................................5
PC BOARD ..................................................................6
SCHEMATIC DIAGRAM ..............................................9
EXPLODED VIEW .....................................................22
PARTS LIST...............................................................23
SPECIFICATIONS .....................................................35
Contents
Accessories
Resetting the Microcomputer
If the microcomputer may malfunction (unit cannot be operated,
or shows an erroneous display) if the power cord is unplugged
while the power is ON, or due to some other external factor. If this
happens, execute the following procedure to reset the micro-
computer and return the unit to its normal operating condition.
Unplug the power cord from the wall outlet, then plug it
back in while holding down the POWER key.
· Please note that resetting the microcomputer will clear the contents
of the memory and returns the unit to the state it was in when it left the
factory.
With the power cord plugged in, turn the POWER key
OFF. Then, while holding down the ON/STANDBY key,
press POWER.
For U.S.A. and Canada
For other countries
Model name vs remote controller
background image
KRF-V5020/V6020/V7020/VR-305/306/355
3
DISASSEMBLY FOR REPAIR
1
2
2
4
4
4
3
x2
x2
x2
x2
1. Remove the 8 screws (
1,2,3),
remove the rear panel.
2. Connect the GND of the rear panel
and the chassis, the GND of the
mounting hardware and the chassis
with 2 alligators clip (
4)
background image
KRF-V5020/V6020/V7020/VR-305/306/355
4
ADJUSTMENT
N o .
ITEM
INPUT SETTINGS
OUTPUT
SETTINGS
RECEIVER
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
FIG.
1
DISTORTION
(STEREO)
(C)
98.0MHz 1kHz,
±68.25kHz dev. Selector
: L or R Pilot :
±6.75kHz
dev. 70dBf (ANT. input)
(B)
98.0MHz
IFT
(TUNER
UNIT: A1)
Minimum distortion
(L or R)
2
TUNING LEVEL
(A)
98.0MHz MONO 1kHz,
±75kHz dev.
25dBf (ANT. input)
(B)
MONO
98.0MHz
VR1
(TUNER UNIT)
Adjust VR1 and
stop at the point
where ED51
(TUNED) goes on.
1
DISCRIMINATOR
(A)
98.0MHz 1kHz,
±40kHz dev.
Connect a DC
voltmeter
between CN2
1 and CN2 2
(TUNER UNIT)
MONO
98.0MHz
L4
(TUNER UNIT)
0V
3
DISTORTION
(STEREO)
98.0MHz
(C)
1kHz,
±40kHz dev.
Selector : L or R
Pilot :
±6kHz dev.
70dBf (ANT. input)
(B)
AUTO
98.0MHz
IFT
(TUNER
UNIT : A1)
Minimum distortion
(L or R)
2
DISTORTION
(MONO)
(A)
98.0MHz 1kHz,
±40kHz dev. MONO
70dBf (ANT. input)
(B)
MONO
98.0MHz
L5
(TUNER UNIT)
Minimum distortion
4
TUNING LEVEL
(A)
98.0MHz MONO 1kHz,
±40kHz dev.
29dBf (ANT. input)
(B)
MONO
98.0MHz
VR1
(TUNER UNIT)
Adjust VR1 and
stop at the point
where ED51
(TUNED) goes on.
FM SECTION : EXCEPT E,T,Q type
SELECTOR : FM
FM SECTION : E,T,Q type only
SELECTOR : FM
Adjust NO.1 and NO.2 repeat.
70dBf (ANT. input)
REC OUT
PHONO
CD
MD / TAPE
VIDEO 2/MONITOR
PLAY IN REC OUT
PLAY IN
L
R
VIDEO 1
VIDEO 2
FRONT
DVD 6CH. INPUT
SURROUND
CENTER
SUB
WOOFER
PLAY IN
VIDEO 1
VIDEO 2
VIDEO OUT
VIDEO IN
MONITOR
AM
ANTENNA
FM
75W
GND
CENTER
SPEAKER
FRONT
SPEAKERS
C
L
R
+
-
SUB
WOOFER
SURROUND
PRE OUT
CENTER
L
R
SURROUND SPEAKERS
FRONT SPEAKERS
AC OUTLET
L
R
+
+
--
+
+
--
L
R
B
(
)
SYSTEM CONTROL
SL16
(XS8)
(A)
(B)
(C)
FM SG
FM SG
TV SG
AG
MPX
HTB
TV MPX
AG
AG
AC voltmeter
Oscilloscope
Distortion meter
Dummy antenna
(D)
SYSTEM CONNECTIONS
background image
15
1
15
1
2
1
XS8
SL16
SBUSY
SDATA
27
27
1
1
(K,P)
(Y,M,I)
(Q,C,V)
(X)
(E,T)
: AC120V 60Hz
: AC110-120V/220-240V~
50/60Hz
: AC220V~ 50Hz
: AC240V~ 50Hz
: AC230V~ 50Hz
2
1
F2
F1
F3
120V
110-
240V
220-
5
1
1
1
4
4
3
1
13
13
1
1
3
1
1
3
1
2
1
5
5
1
2
1
1
1
3
3
15
15
14
41
CHASSIS
3
1
6
6
11
1
1
2
8
CN1
CN10
GND
J1
AM
FM75
S1
POWER
SW
WH1
SRch
4
+
-
3
SLch
-
+
2
Rch
+
-
1
Lch
-
+
J10
FRONT
SP. A
SP.
SURROUND
S4
SYSTEM
CONTROL
SW
J3
SYSTEM
CONTROL
Lch 1
Rch 2
PHONO
J1
CN8
CN51
WH51
CN12
CN1
J1
AC
OUTLET
USED
(MY,I) TYPE
(E,E2,Q) TYPE
USED
T1
S2
S3
CN11
DESTINATION
U.K.
EUROPE
COUNTRY
T7
E7
2-71
UNIT No.
ABB.
UNIT No.
KRF-V7020 (X05-4982-71)
COUNTRY
RUSSIA
Q5
ABB.
3-81
DESTINATION
KRF-V5020W (X05-4983-81)
EUROPE
E3
2-71
ABB.
COUNTRY
DESTINATION
KRF-V5020E (X05-4982-71)
COUNTRY
UNIT No.
ABB.
GENERAL MARKET
EUROPE
U.K.
AUSTRALIA
T5
E1
2-71
M5
X5
0-22
0-71
CANADA
P3
KRF-V5020 (X05-498X-XX)
DESTINATION
UNIT No.
DESTINATION
VR-355 (X05-5050-10)
COUNTRY
U.S.A.
UNIT No.
ABB.
K3
0-10
WH52
CN9
CN53
WH1
CN13
CN2
CN4
CN7
CN3
J1
Lch
Rch
VIDEO
VIDEO1
(FRONT)
CN1
CN11
CN12
CN2
S1
CD
Rch 4
Lch 3
Rch 4
PLAY IN
Lch 3
REC OUT
Rch 2
Lch 1
J7
VIDEO2
MONITOR
TAPE
PLAY IN
Rch 4
Lch 3
MD/
REC OUT
Rch 2
Lch 1
J2
Rch 6
Lch 5
VIDEO1
PLAY IN
Rch 3
DVD 6CH.
INPUT
Lch 2
SWch 1
J3
Cch 1
SRch 3
SLch 2
J4
VIDEO2
INPUT
VIDEO1
J5
6ch
1
VIDEO
IN
OUT
OUT
VIDEO
VIDEO2
J6
MONITOR
1
REC
2
PLAY
PLAY
3
2
+
-
Cch
3
SP. A
FRONT
+
J8
-
+
Rch
2
-
Lch
1
Cch
FLch
FRch
J4
CN14
WH2
HEADPHONE
SRch
SWch
SLch
Cch
REC OUT
J9
1
2
3
4
PX
Y5
MALAYSIA
I5
KRF-V5020(S) (X05-4982-71)
EUROPE
COUNTRY
DESTINATION
UNIT No.
E2
ABB.
2-71
I6
MALAYSIA
0-71
2-71
AUSTRALIA
EUROPE
E4
X6
0-22
UNIT No.
KRF-V6020 (X05-498X-XX)
GENERAL MARKET
CHINA
COUNTRY
DESTINATION
M6
C6
ABB.
KRF-V6020E (X05-4982-71)
EUROPE
COUNTRY
DESTINATION
UNIT No.
E5
ABB.
2-71
DESTINATION
RUSSIA
COUNTRY
UNIT No.
Q6
ABB.
3-81
KRF-V6020W (X05-4983-81)
KRF-V7020E (X05-4982-71)
KRF-V7020W (X05-4983-81)
DESTINATION
COUNTRY
RUSSIA
EUROPE
COUNTRY
DESTINATION
UNIT No.
UNIT No.
Q7
ABB.
3-81
E8
ABB.
2-71
2-70
UNIT No.
2-70
2-70
UNIT No.
UNIT No.
3-81
DESTINATION
COUNTRY
RUSSIA
Q5
ABB.
KRF-V5020(S) (X09-6242-70)
KRF-V5020E (X09-6242-70)
KRF-V5020W (X09-6243-81)
EUROPE
DESTINATION
COUNTRY
E3
ABB.
COUNTRY
DESTINATION
EUROPE
U.K.
EUROPE
ABB.
E2
T5
E1
DESTINATION
COUNTRY
RUSSIA
UNIT No.
Q7
ABB.
3-81
KRF-V7020 (X09-6262-70)
KRF-V7020W (X09-6263-81)
KRF-V7020E (X09-6262-70)
EUROPE
DESTINATION
COUNTRY
DESTINATION
COUNTRY
EUROPE
U.K.
RUSSIA
UNIT No.
E8
2-70
ABB.
UNIT No.
T7
E7
ABB.
2-70
Q6
3-82
VR-355 (X09-6300-11)
0-11
UNIT No.
UNIT No.
0-21
GENERAL MARKET
KRF-V5020 (X09-624X-XX)
MALAYSIA
PX
AUSTRALIA
DESTINATION
COUNTRY
I5
X5
M5
Y5
ABB.
CANADA
U.S.A.
COUNTRY
DESTINATION
K3
P3
ABB.
UNIT No.
KRF-V6020W (X09-6243-82)
KRF-V6020E (X09-6242-71)
DESTINATION
COUNTRY
COUNTRY
DESTINATION
EUROPE
GENERAL MARKET
EUROPE
AUSTRALIA
CHINA
COUNTRY
MALAYSIA
UNIT No.
UNIT No.
ABB.
ABB.
E5
2-71
E4
X6
2-71
C6
I6
ABB.
M6
0-22
KRF-V6020 (X09-624X-XX)
DESTINATION
UNIT No.
0-10
VR-306 (X09-6300-10)
DESTINATION
COUNTRY
U.S.A.
CANADA
K1
P1
ABB.
0-51
UNIT No.
2-70
2-70
UNIT No.
UNIT No.
2-70
DESTINATION
COUNTRY
RUSSIA
Q5
ABB.
KRF-V5020E (X00-2902-70)
KRF-V5020(S) (X00-2902-70)
KRF-V5020W (X00-2902-70)
EUROPE
DESTINATION
COUNTRY
E2
ABB.
COUNTRY
DESTINATION
EUROPE
U.K.
EUROPE
ABB.
E3
T5
E1
KRF-V7020 (X00-290X-XX)
DESTINATION
EUROPE
COUNTRY
U.K.
RUSSIA
UNIT No.
E7
T7
ABB.
0-52
Q6
2-71
VR-355 (X00-2880-10)
0-10
UNIT No.
UNIT No.
2-91
0-71
GENERAL MARKET
KRF-V5020 (X00-290X-XX)
MALAYSIA
PX
AUSTRALIA
DESTINATION
COUNTRY
I5
X5
M5
Y5
ABB.
CANADA
U.S.A.
COUNTRY
DESTINATION
K3
P3
ABB.
UNIT No.
KRF-V6020W (X00-2902-71)
KRF-V6020E (X00-2902-71).....V6
DESTINATION
COUNTRY
COUNTRY
DESTINATION
EUROPE
GENERAL MARKET
EUROPE
AUSTRALIA
CHINA
COUNTRY
MALAYSIA
UNIT No.
UNIT No.
ABB.
ABB.
E5
2-71
E4
X6
2-71
3-02
C6
I6
ABB.
M6
0-22
KRF-V6020 (X00-290X-XX)
DESTINATION
0-21
2-70
0-72
2-71
ANT
J10
SRch
4
+
SURROUND
3
-
+
-
SP.
SLch
SWch
J11
WH1
WH2
CN2
CN1
VR-305 (X09-6300-11)
CANADA
U.S.A.
COUNTRY
DESTINATION
K2
P2
0-11
UNIT No.
ABB.
U.S.A.
COUNTRY
VR-306 (X05-5050-10)
DESTINATION
CANADA
K1
P1
ABB.
0-10
UNIT No.
CANADA
DESTINATION
VR-305 (X05-5050-10)
COUNTRY
U.S.A.
P2
ABB.
K2
UNIT No.
0-10
VR-306 (X00-2880-10)
UNIT No.
DESTINATION
COUNTRY
U.S.A.
CANADA
K1
P1
ABB.
0-10
VR-305 (X00-2880-10)
UNIT No.
CANADA
U.S.A.
COUNTRY
DESTINATION
P2
ABB.
K2
0-10
KRF-V7020E (X00-2902-71)
KRF-V7020W (X00-2902-71)
UNIT No.
UNIT No.
Q7
COUNTRY
DESTINATION
RUSSIA
EUROPE
DESTINATION
COUNTRY
ABB.
2-71
E8
ABB.
2-71
J2
TUNER UNIT
(X05-5050-10)
(X00- ) (B/6)
USED EXCEPT (K,P) TYPE
(X09-624X-XX) (A/3)
(X09- ) (B/3)
DISPLAY UNIT
AUDIO UNIT
(X09- ) (C/3)
(X00- ) (D/6)
(X00- ) (C/6)
USED EXCEPT (M,Y,I) TYPE
USED (M,Y,I) TYPE
VR-305/306/355
(X00- ) (E/6)
(X00-290X-XX) (A/6)
(X00-2890-10) (A/6).....V6
(X05-498X-XX)
(X05-5062-11).....V6
(X25-6222-70)
SUB-CIRCUIT UNIT
(X00- )
(F/6)
KRF-V7020/V7020E/V7020W
(X09-630X-XX) (A/3)
(X09-6352-10) (A/3).....V6
(K,P,M,I,X,Y,C) TYPE
USED
(E,E2,T,Q) TYPE
USED
KRF-V6020/E/W
USED
KRF-V7020/E/W
KRF-V5020/(S)/E/W
VR-305/306/355
USED
KRF-V7020/E/W
KRF-V6020/E/W
USED
USED
USED EXCEPT KRF-V5020/E/W
(X00-2880-10) (A/6)
POWER SUPPLY UNIT
POWER
TRANSFORMER
KRF-V5020/(S)/E/W
KRF-V6020/E/W
KRF-V7020/E/W
KRF-V5020/V6020/V7020/VR-305/306/355
5
WIRING
DIAGRAM

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