KENWOOD KRF-V8080D Service Manual

Cover page of KENWOOD KRF-V8080D Service Manual

Service Manual for KENWOOD KRF-V8080D, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

  • Immediate download after payment.
  • Delivered as a PDF file.
  • The manual has 29 pages
  • File size: 4.45 MB
  • Available language versions: English
  • Different language versions may vary sligthly in file size and page count.

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Sample pages

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background image
AUDIO VIDEO SURROUND RECEIVER
KRF-V8080D/V8080D-S
VR-8050
SERVICE MANUAL
© 2004-5 PRINTED IN KOREA
B51-5895-00 (K/K) 616
70%
ACTIVEEQ SPEAKEREQ LOUDNESS
DSP
STEREO INPUT MODE DIMMER
SOUND TONE
SETUP
BAND
AUTO MEMORY
MULTI CONTROL
LISTEN MODE
TUNER
MD/TAPE
VIDEO 3
VIDEO 2
VIDEO 1
PHONO
CD/DVD
DSP
DTS
LOUDNESS
DOLBY DIGITAL
SPEAKER EQ
ACTIVE EQ
STANDBY
ON/STANDBY
A SPEAKERS B
POWER
PHONES
DOWN
MUTE
AV AUX
S VIDEO
VIDEO
L-AUDIO-R
UP
VOLUME CONTROL
DVD/6CH
-ON ­OFF
Phone jack *
(E11-)
DVD/6CH INPUT
FRONT
SURROUND
SUB
WOOFER
CENTER
PLAY IN
PLAY IN
VIDEO 2
VIDEO 3
COAXIAL
OPTICAL
OPTICAL
VIDEO 3
CD/DVD
DVD/
6CH
VIDEO
2
DIGITAL IN
S VIDEO
IN
VIDEO
S VIDEO
IN
VIDEO
S VIDEO
IN
VIDEO
MONITOR
DVD
S VIDEO
OUT
VIDEO
OUT
DVD
IN
VIDEO
3
IN
MONITOR OUT
CR
CB
Y
CR
CB
Y
COMPONENT VIDEO
VIDEO 1
PLAY IN
REC OUT
S VIDEO
OUT
VIDEO
S VIDEO
IN
VIDEO
IN
IN
REC OUT
PLAY IN
CD/DVD
MD/TAPE
R
L
PHONO
GREEN
WHITE
RED
RL
CENTER
FRONT A
-
+
++
-
-
FRONT B
RL
GRAY
SURROUND
RL
-
+
BLUE
BROWN
SURROUND BACK/
SUBWOOFER
PRE OUT
PRE OUT
SUB
WOOFER
R
L
SURROUND
BACK
/
SURROUND
BACK
SURROUND
BACK
AC OUTLETS
AC 230V~50Hz
SWITCHED
TOTAL 90W MAX.
AM
ANTENNA
Front glass *
(B10-)
* Refer to parts list on page 29 .
AC power cord *
(E30-)
Power cord bushing
(J42-0349-05)
Pin Jack
(E63-1315-05)
Screw terminal board
(E70-0150-05)
Optical receiving module
(W02-4524-05) x2
Pin jack
(E63-1293-05)x2
Tuner ass'y *
(W02-)
Pin Jack
(E63-1316-05)
Illust. is KRF-V8080D.
Knob(BUTTON) *
(K27-)
Knob *
(K29-)
Escutcheon *
(B07-)
Panel *
(A60-)
Knob *
(K29-)
Dressing panel *
(A21-)
Knob ass'y *
(K29-)
Screw terminal board
(E70-0150-05)
Lock terminal board
(E70-0160-05)
AC outlet *
(E03-)
Pin jack
(E63-1146-05)
Pin Jack
(E63-1251-05)
Cylindrical receptacle
(E56-0033-05)
Knob *
(K29-)
Pin jack
(E63-1317-05)x2
Pin jack
(E63-1317-05)x2
Pin jack
(E63-1247-05)
Pin jack
(E63-0133-15)
Pin jack
(E63-1080-05)
Cylindrical receptacle *
(E56-)x3
background image
AUDIO VIDEO SURROUND RECEIVER
KRF-V8080D/V8080D-S
VR-8050
SERVICE MANUAL
© 2004-5 PRINTED IN KOREA
B51-5895-00 (K/K) 616
70%
ACTIVEEQ SPEAKEREQ LOUDNESS
DSP
STEREO INPUT MODE DIMMER
SOUND TONE
SETUP
BAND
AUTO MEMORY
MULTI CONTROL
LISTEN MODE
TUNER
MD/TAPE
VIDEO 3
VIDEO 2
VIDEO 1
PHONO
CD/DVD
DSP
DTS
LOUDNESS
DOLBY DIGITAL
SPEAKER EQ
ACTIVE EQ
STANDBY
ON/STANDBY
A SPEAKERS B
POWER
PHONES
DOWN
MUTE
AV AUX
S VIDEO
VIDEO
L-AUDIO-R
UP
VOLUME CONTROL
DVD/6CH
-ON ­OFF
Phone jack *
(E11-)
DVD/6CH INPUT
FRONT
SURROUND
SUB
WOOFER
CENTER
PLAY IN
PLAY IN
VIDEO 2
VIDEO 3
COAXIAL
OPTICAL
OPTICAL
VIDEO 3
CD/DVD
DVD/
6CH
VIDEO
2
DIGITAL IN
S VIDEO
IN
VIDEO
S VIDEO
IN
VIDEO
S VIDEO
IN
VIDEO
MONITOR
DVD
S VIDEO
OUT
VIDEO
OUT
DVD
IN
VIDEO
3
IN
MONITOR OUT
CR
CB
Y
CR
CB
Y
COMPONENT VIDEO
VIDEO 1
PLAY IN
REC OUT
S VIDEO
OUT
VIDEO
S VIDEO
IN
VIDEO
IN
IN
REC OUT
PLAY IN
CD/DVD
MD/TAPE
R
L
PHONO
GREEN
WHITE
RED
RL
CENTER
FRONT A
-
+
++
-
-
FRONT B
RL
GRAY
SURROUND
RL
-
+
BLUE
BROWN
SURROUND BACK/
SUBWOOFER
PRE OUT
PRE OUT
SUB
WOOFER
R
L
SURROUND
BACK
/
SURROUND
BACK
SURROUND
BACK
AC OUTLETS
AC 230V~50Hz
SWITCHED
TOTAL 90W MAX.
AM
ANTENNA
Front glass *
(B10-)
* Refer to parts list on page 29 .
AC power cord *
(E30-)
Power cord bushing
(J42-0349-05)
Pin Jack
(E63-1315-05)
Screw terminal board
(E70-0150-05)
Optical receiving module
(W02-4524-05) x2
Pin jack
(E63-1293-05)x2
Tuner ass'y *
(W02-)
Pin Jack
(E63-1316-05)
Illust. is KRF-V8080D.
Knob(BUTTON) *
(K27-)
Knob *
(K29-)
Escutcheon *
(B07-)
Panel *
(A60-)
Knob *
(K29-)
Dressing panel *
(A21-)
Knob ass'y *
(K29-)
Screw terminal board
(E70-0150-05)
Lock terminal board
(E70-0160-05)
AC outlet *
(E03-)
Pin jack
(E63-1146-05)
Pin Jack
(E63-1251-05)
Cylindrical receptacle
(E56-0033-05)
Knob *
(K29-)
Pin jack
(E63-1317-05)x2
Pin jack
(E63-1317-05)x2
Pin jack
(E63-1247-05)
Pin jack
(E63-0133-15)
Pin jack
(E63-1080-05)
Cylindrical receptacle *
(E56-)x3
background image
KRF-V8080D/V8080D-S/VR-8050
2
ACCESSORIES / CAUTIONS
FM indoor antenna (1)
(T90-0877-05): EE1
(T90-0905-05): KP
AM loop antenna (1)
(T90-0893-05)
Remote control unit (1)
RC-R0823
(A70-1623-05): EE1
RC-R0822
(A70-1622-05): KP
Batteries (R6/AA) (2)
Accessories
Model
Color
ABB.
KRF-V8080D
Black
E
KRF-V8080D-S
Silver
E1
VR-8050
Black
KP
Color vs Model
Resetting the Microcomputer
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 rese
· Please note that resetting the microcomputer will clear the
contents of the memory and return the unit to the state it
was in when it left the factory.
For the U.S.A. and Canada
Unplug the power cord from the wall outlet, then plug
it back in while holding down the POWER ON/STAND-
BY
key.
For other countries
With the power cord plugged in, turn the POWER
ON/OFF key OFF. Then, while holding down the
ON/STANDBY
key, press POWER ON/OFF key.
Cautions
· Power mode
· Input selector settings
· Picture output
· Speaker ON/OFF
· Volume level
· BASS, TREBLE, INPUT level
· TONE ON/OFF
· LOUDNESS ON/OFF
· Dimmer level
· MD/TAPE settings
· Listen mode setting
· Speaker settings
· Distance setting
· Input mode setting
·Sound mode settings
· Broadcast band
· Frequency setting
· Preset stations
· Tuning mode
· ACTIVE EQ mode
· SPEAKER EQ mode
Memory back up function
Please note that the following items will be deleted from the unit's
memory if the power cord is disconnected from the AC outlet for
approximately 1 day.
background image
KRF-V8080D/V8080D-S/VR-8050
3
EXTERNAL VIEW / ADJUSTMENT
VOLUME CONTROL
DOWN
UP
MUTE
AV AUX
S VIDEO
VIDEO
L-AUDIO-R
LISTEN MODE
MULTI CONTROL
SETUP
TONE
SOUND
MEMORY
AUTO
BAND
TUNER
PHONO
CD/DVD
DVD/6CH
MD/TAPE
VIDEO 3
VIDEO 2
VIDEO 1
ACTIVE EQ
SPEAKER EQ LOUDNESS
DSP
STEREO
INPUT MODE
DIMMER
DSP
SPEAKER EQ
ACTIVE EQ
DOLBY DIGITAL
DTS
LOUDNESS
POWER
STANDBY
ON/STANDBY
A SPEAKERS B
PHONES
Knob
(K29-8364-11)
Front glass
(B10-5507-02)
Phone jack *
(E11-)
Knob
(K29-8103-04)
Panel
(A60-2377-01)
Knob
(K29-8352-14)
Knob
(K29-8364-11)
Knob ass'y
(K29-8358-13)
Knob ass'y
(K29-8358-13)
Cylindrical receptacle
(E56-0033-05)
Escutcheon
(B07-2606-03)
Escutcheon
(B07-2689-01)
Pin jack
(E63-1251-05)
Illust. is VR-8050.
* Refer to parts list on page 29 .
EXTERNAL VIEW
ADJUSTMENT
No.
ITEM
INPUT
OUTPUT
RECEIVER
ALIGNMENT
ALIGN FOR
FIG.
SETTINGS
SETTINGS
SETTINGS
POINTS
AUDIO SECTION
SPEAKER : A
Idling Current Adjustment
All power amplifier stage need idling current adjustment after the installation of TRAIT transistor.
1. Connect a voltmeter to CN11 with the correct polarity as indicated by the PCB silk print.
2. Adjust the preset, VR1 to get 8.8mV (Idling current = 20mA) at the voltmeter reading.
3. Repeat step 1 and 2 for all other channels.
CN11, FL ch.
CN10, FR ch.
CN14, SL ch.
CN13, SR ch.
CN12, C ch.
CN15, SW ch.
X09(A/5)
(FRONT 2ch
MODE)
Volume:
Minimum
IDLE CURRENT
<1>
-
VR1(FL)
VR2(FR)
VR3(SL)
VR4(SR)
VR5(CENTER)
VR6(SUB
WOOFER)
X09(A/5)
Adjust every
potentiometer
10 minutes later
after turned
the power on.
background image
KRF-V8080D/V8080D-S/VR-8050
4
INTERCONNECTION
DIAGRAM
E601
A2
A1
VIDEO 3
AM
75
GND
FM
PHONES
J501
CN51
CN13
Rch
CN10
Lch
Rch
CN12
CN11
CN21
CN22
WH21
E21
CN14
CN15
E22
P501
WH90
WH91
WH93
CN7
WH92
CN4
CN6
WH88
CN2
CN4
VIDEO 2
VIDEO 1
PLAY
MD/TAPE
PLAY
MD/TAPE
CD
PHONO
/AUX
VIDEO 1
REC
REC
FL
Lch
Rch
J21
Lch
Rch
WH2
Lch
Rch
Lch
Rch
WH6
WH5
SW
SL
DVD/6ch
SR
C
FR
Lch
Rch
Lch
Rch
J11
Lch
Rch
J6
Lch
WH1
CN302
SPEAKERS
FRONT B
SURROUND BACK/
SUB WOOFER
Rch
J301
Lch
SPEAKERS
CENTER
SPEAKERS
J3
WH4
CN304
CN5
CN301
J5
Cch
Rch
FRONT A
Lch
WH221
CN303
VIDEO2
CN1
CN3
COAXIAL IN
DVD
OPTICAL IN
VIDEO3
J1
CD/DVD
VIDEO
Rch
AV AUX
Lch
CN2
WH3
S-VIDEO
WH20
J20
P3
J21
CN2
PRE OUT
WH2
WH1
J303
SW
SBR
SBL
VIDEO1
OUT
PLAY IN
MONITOR
DVD
J62
IN
VIDEO3
PLAY IN
VIDEO2
PLAY IN
REC
OUT
PLAY
J61
CN50
WH80
WH70
WH89
CN3
CN80
CN70
WH78
WH94
CN45
KRF-V8080D/-S
J3
VR-8050
J2
P2
CN1
Y
Y
VIDEO3 IN
DVD &
Cb
Cb
Cr
Cr
MONITOR
OUT
J101
Cb
Y
Cr
J102
CN101
WH69
VIDEO1
IN
PLAY
REC
OUT
CN68
E602
VIDEO2
VIDEO3
PLAY IN
PLAY IN
J65
CN65
WH66
J66
OUT
MONITOR
PLAY IN
DVD
CN49
WH5
CN46
KRF-V8080D/-S
S2
CN41
WH42
CN67
J67
(X08-3310-10)
J12
J22
CN5
(X09-6760-12)
(X14-7630-12)
SYSTEM
CONTROL
SURROUND
J302
AUDIO
CN47
1
3
1 2
1
2
1
2
1
15
15
11
9
51
1
2
1 2
1 2
51
1
3
9
1
91
1
9
115
15
1
21
110
13
21
1
10
1
1
2
2
1
2
1
1
2
1
2
41
41
1
2
1
19
2
11
11
4
19
14
1
5
3
1
1
7
1
1
3
4
1
1
3
1
13
3
1
3
1
1
3
1
3
1
7
1
7
51
WW
WW
KRF-V8080D/-S
CN22
: T4A L 250V
KRF-V8080D/-S
VR-8050 : 10A 125V
CN11
CN12
F1
: T1A L 250V
CN21
F2
2
1
T1
2
1
14
6
1
6
1
14
41
5
1
2
12
1
2
1
1 2
31
61
2
1
0-10
CANADA
U.S.A.
VR-8050
P
K
UNIT No.
2-71
EUROPE
DESTINATION
EUROPE
COUNTRY
KRF-V8080D-S
MODEL NAME
KRF-V8080D
E1
ABB.
E
W108
W110
W109
W106
W107
W105
1
3
KRF-V8080D
KRF-V8080D-S
VR-8050
MODEL NAME
CANADA
P
EUROPE
EUROPE
E
2-74
COUNTRY
DESTINATION
U.S.A.
K
ABB.
0-12
UNIT No.
ABB.
DESTINATION
KRF-V8080D-S
KRF-V8080D
EUROPE
EUROPE
MODEL NAME
VR-8050
COUNTRY
U.S.A.
CANADA
2-74
E
UNIT No.
0-12
K
P
E1
E1
HEADPHONE PCB
(X09- ) (B/5)
(W02-2976-05) : E TYPE
(W02-2974-05) : K,P TYPE
TUNER ASSY
TUNER PCB
(X09- ) (C/5)
DISPLAY PCB
(X14-7630-12) (A/11)
POWER AMPLIFIER UNIT
(X09-6760-12) (A/5)
FRONT AUX.
(X14- ) (H/11)
SPEAKER UNIT
(X25- ) (B/2)
VIDEO
COMPOSITE
(X14- ) (F/11)
UNIT
VR-8050
VOLUME
STANDBY
(X14- ) (C/11)
SWITCH
CONTROL
(X14- ) (B/11)
AC/STD. TRANS
(X14- ) (I/11)
TRANSFORMER
(X14- ) (D/11)
AVR
COMPONENT VIDEO UNIT
(X08-3310-10)
SURROUND UNIT
(X25-6620-11) (A/2)
POWER
(X14- ) (G/11)
S-VIDEO UNIT
POWER SWITCH
(X14-) (K/11)
(E/11)
(X14- )
KRF-V8080D
AVR
background image
5
AC
E
BD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
R52
C44
C544
3
1
11
3
C546
C548
C550
C551
C555
R521
R523
R524
R529
R532
R533
R534
R537
R538
C79
R98
C538
C539
R89
C109
C1
10
C129
C130
C149
C150
C189
C190
C197
C41
C545
R81
C198
R92
C42
C57
C58
C95
C99
21
R42
R90
R97
R107
R108
R127
R167
R168
R503
R504
R505
R506
R513
R514
R515
R528
R530
R536
R542
R543
R544
R545
C1
C2
CP51
CP52
CP53
CP54
CP55
CP56
CP57
CP58
CP59
CP60
CP61
CP62
CP63
CP64
CP65
CP66
CP71
CP72
CP73
CP74
CP75
L1
L2
R1
R2
R4
O
G
I
O
G
I
R1
1
R12
R22
R23
R24
R25
R26
L4
L5
R30
R31
R32
R41
R43
R44
R45
R46
R47
R48
R49
R51
R65
R91
R93
R94
R95
R96
R109
R1
10
R1
1
1
R1
12
R152
R169
R170
R171
R172
R501
R502
R507
R508
R509
R511
R512
R516
R517
R525
R526
R527
R541
R546
R547
R548
R549
R550
R553
R554
X6
X51
R560
R561
R562
R563
R564
R565
R567
R566
C268
C267
R82
R83
C557
C558
R50
C561
C562
C564
1
48
37
12
36
25
13
24
41
8
5
1
44
34
11
22
12
33
23
5
8
4
1
1
4
5
8
1
1
1
10
73
72
5
81
4
7
8
14
7
14
8
37
108
36
1
109
144
5
1
1
IG
O
8
3
5
4
10
20
11
4
1
1
10
11
20
1
3
4
5
16
9
18
3
1
4
5
11
20
1
10
1
10
11
20
1
4
5
8
1
4
5
8
1
4
5
8
15
1
16
30
1
22
44
23
40
48
21
25
24
1
120
1
121
220
50
C49
C529
C65
C85
C94
R88
C91
C7
C6
C5
C100
R85
R84
R86
C97
C46
C82
C43
C88
C47
C48
C101
C102
C121
C122
C141
C142
C161
C162
C265
C262
C191
C192
C193
C194
C195
C196
R87
C266
C261
E
B
E
B
D6
CN53
D7
D9
D5
D11
D12
D10
Q2
D2
D3
D4
D8
Q1
D17
D13
D14
D16
D15
A3
A2
A1
D1
J1
CN4
CN2
S1
CN1
CN3
CN5
IC2
IC50
IC6
IC1
IC51
IC52
IC53
IC54
IC55
IC56
IC57
IC58
IC49
IC60
IC61
IC10
IC12
IC14
IC16
IC18
IC20
IC62
IC59
IC19
IC63
IC21
IC22
IC23
X08-3310-10
(J70-1715-12)(SIDE A)
OUT
VIDEO3
CD/DVD
OPTICAL
OPTICAL IN
COAXIAL IN

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