KENWOOD KRFVR407 Service Manual

Cover page of KENWOOD KRFVR407 Service Manual

Service Manual for KENWOOD KRFVR407, downloadable as a PDF file.

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AUDIO VIDEO SURROUND RECEIVER
KRF-V7030D/V7030D-S
KRF-V8030D/V8030D-S
VR-407/409
SERVICE MANUAL
© 2000-2/B51-5598-00 (K/K) 3473
70%
A SPEAKERS B
STANDBY
MULTI CONTROL
LISTEN MODE
SOUND
SOURCE DIRECT
AUTO
BAND
MEMORY
INPUT SELECTOR
VOLUME CONTROL
UP
DOWN
PROLOGIC
3 STEREO
DOWN MIX
DOLBY
DIGITAL
DTS
INPUT MODE
SET UP
S-VIDEO
VIDEO
L ­ AUDIO ­ R
AV AUX
DIMMER
MONITOR
PHONES
ON/STANDBY
POWER
OPTICAL
DVD
CD/DVD
VIDEO 3
VIDEO
VIDEO 2
COAXIAL
OPTICAL
DIGITAL IN
S-VIDEO
DVD
VIDEO 1
VIDEO 1
VIDEO 2
VIDEO 3
MONITOR
PLAY IN
REC OUT
PLAY IN
PLAY IN
PLAY IN
REC OUT
VIDEO 1
VIDEO 2
VIDEO 3
PLAY IN
PLAY IN
PLAY IN
REC OUT
SYSTEM CONTROL
­
+
FRONT SPEAKERS
(8 ­ 16
)
CENTER SPEAKERS
(8 ­ 16
)
SUB WOOFER PRE OUT
­
+
+
­
FRONT SPEAKERS
SURROUND SPEAKERS
AC OUTLET
(8 ­ 16
)
(8 ­ 16
)
RED
BLUE
GREEN
FM
75
GND
AM
MONITOR
PLAY IN
PLAY IN
REC OUT
AUDIO
L
R
MD/TAPE1
CD/DVD
PHONO
GND
REC OUT
FRONT
L
CENTER
SURROUND SUB WOOFER
DVD/6ch INPUT
R
Front glass *
(B10-)
Panel
(A60-1744-12)
Knob
(K29-7678-04)
Knob
(K29-7681-14)
Knob
(K29-7675-12)
Phone jack
(E11-0272-05)
Pin jack 6P
(E63-1139-05)
Metallic cabinet
(A01-3731-01)
Power cord bushing
(J42-0083-05)
AC power cord *
(E30-)
Lock terminal board
(E20-0321-05)
Pin jack x2
(E63-1143-05)
Lock terminal board
(E70-0065-05)
AC outlet *
(E03-)
Pin jack *
(E63-)
Knob
(K29-7681-14)
Pin jack
(E63-1144-05)
Screw terminal board
(E70-0049-05)
Pin jack
(E63-1146-05)
Miniature phone jack
(E11-0293-05)
Cylindrical receptacle
(E06-0709-05)
Pin jack
(E63-1080-05)
Optical receiving module
(W02-2716-05)
Illustration is KRF-V7030D E type.
* Refer to parts list on page 39.
Cylindrical
receptacle 3Px2
(E56-0011-05)
Pin jack
(E63-1142-05)
background image
AUDIO VIDEO SURROUND RECEIVER
KRF-V7030D/V7030D-S
KRF-V8030D/V8030D-S
VR-407/409
SERVICE MANUAL
© 2000-2/B51-5598-00 (K/K) 3473
70%
A SPEAKERS B
STANDBY
MULTI CONTROL
LISTEN MODE
SOUND
SOURCE DIRECT
AUTO
BAND
MEMORY
INPUT SELECTOR
VOLUME CONTROL
UP
DOWN
PROLOGIC
3 STEREO
DOWN MIX
DOLBY
DIGITAL
DTS
INPUT MODE
SET UP
S-VIDEO
VIDEO
L ­ AUDIO ­ R
AV AUX
DIMMER
MONITOR
PHONES
ON/STANDBY
POWER
OPTICAL
DVD
CD/DVD
VIDEO 3
VIDEO
VIDEO 2
COAXIAL
OPTICAL
DIGITAL IN
S-VIDEO
DVD
VIDEO 1
VIDEO 1
VIDEO 2
VIDEO 3
MONITOR
PLAY IN
REC OUT
PLAY IN
PLAY IN
PLAY IN
REC OUT
VIDEO 1
VIDEO 2
VIDEO 3
PLAY IN
PLAY IN
PLAY IN
REC OUT
SYSTEM CONTROL
­
+
FRONT SPEAKERS
(8 ­ 16
)
CENTER SPEAKERS
(8 ­ 16
)
SUB WOOFER PRE OUT
­
+
+
­
FRONT SPEAKERS
SURROUND SPEAKERS
AC OUTLET
(8 ­ 16
)
(8 ­ 16
)
RED
BLUE
GREEN
FM
75
GND
AM
MONITOR
PLAY IN
PLAY IN
REC OUT
AUDIO
L
R
MD/TAPE1
CD/DVD
PHONO
GND
REC OUT
FRONT
L
CENTER
SURROUND SUB WOOFER
DVD/6ch INPUT
R
Front glass *
(B10-)
Panel
(A60-1744-12)
Knob
(K29-7678-04)
Knob
(K29-7681-14)
Knob
(K29-7675-12)
Phone jack
(E11-0272-05)
Pin jack 6P
(E63-1139-05)
Metallic cabinet
(A01-3731-01)
Power cord bushing
(J42-0083-05)
AC power cord *
(E30-)
Lock terminal board
(E20-0321-05)
Pin jack x2
(E63-1143-05)
Lock terminal board
(E70-0065-05)
AC outlet *
(E03-)
Pin jack *
(E63-)
Knob
(K29-7681-14)
Pin jack
(E63-1144-05)
Screw terminal board
(E70-0049-05)
Pin jack
(E63-1146-05)
Miniature phone jack
(E11-0293-05)
Cylindrical receptacle
(E06-0709-05)
Pin jack
(E63-1080-05)
Optical receiving module
(W02-2716-05)
Illustration is KRF-V7030D E type.
* Refer to parts list on page 39.
Cylindrical
receptacle 3Px2
(E56-0011-05)
Pin jack
(E63-1142-05)
background image
Resetting the Microcomputer
·
For U.S.A. and Canada
For other countries
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
microcomputer and return the unit to its normal operating
condition.
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.
Unplug the power cord from the wall outlet, then plug it back in
while holding down the POWER key.
With the power cord plugged in, turn the POWER key OFF. Then,
while holding down the ON/STANDBY key, press POWER.
FM indoor antenna (1)
(T90-0836-05)
AM loop antenna (1)
(T90-0852-05)
Remote control unit (1)
RC-R0609/R0610
*AC plug adaptor (1)
(E03-0115-05)
* Use to adapt the plug on the power cord
to the shape of the wall outlet.
(Accessory only for regions where use is
necessary.)
Batteries (R6/AA) (2)
Remote control unit (1)
RC-R0808/0809
Batteries (R6/AA) (2)
+
­
+
­
KRF-V7030D/V8030D/VR-407/409
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES .................................. 2
BLOCK DIAGRAM ......................................................3
CIRCUIT DESCRIPTION ............................................4
ADJUSTMENT ..........................................................11
PC BOARD .............................................................. 12
SCHEMATIC DIAGRAM .......................................... 17
EXPLODED VIEW ....................................................37
PARTS LIST..............................................................38
SPECIFICATIONS ....................................................51
Contents
Accessories
Model name vs remote controller
Cautions
Remote Controller
MODEL
Destinations Parts number Model name Battery cover
VR-407
K
A70-1330-05
RC-R0609
A09-1178-08
VR-407
P
A70-1330-05
RC-R0609
A09-1178-08
KRF-V7030D
Y
A70-1330-05
RC-R0609
A09-1178-08
KRF-V7030D-S
M
A70-1330-05
RC-R0609
A09-1178-08
KRF-V7030D-S
I
A70-1330-05
RC-R0609
A09-1178-08
KRF-V7030D-S
X
A70-1330-05
RC-R0609
A09-1178-08
VR-407-S
K1
A70-1330-05
RC-R0609
A09-1178-08
VR-409
K
A70-1315-05
RC-R0809
A09-1166-08
VR-409
P
A70-1315-05
RC-R0809
A09-1166-08
KRF-V8030D
Y
A70-1315-05
RC-R0809
A09-1166-08
KRF-V8030D-S
M
A70-1315-05
RC-R0809
A09-1166-08
KRF-V8030D-S
I
A70-1315-05
RC-R0809
A09-1166-08
KRF-V8030D-S
X
A70-1315-05
RC-R0809
A09-1166-08
KRF-V8030D
E
A09-1166-08
A70-1345-05
RC-R0808
KRF-V7030D
E1
A70-1331-05
RC-R0610
A09-1178-08
KRF-V7030D
T
A70-1331-05
RC-R0610
A09-1178-08
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LINE BUF
PHONO EQ
TUNER
AK4527
LPF
LPF
LPF
LPF
x2
x2
x2
x1
M62446SP
6ch E. VOL
with 2ch
TONE CONT.
x0.5
BUF
IC113
+20/0dB
+B
HIT
A
P
-B
HIT
A
P
+B
LOWT
AP
-B
LOWT
AP
VIDEO2
(VIDEO2/MONI.)
OPTICAL
VIDEO3
VIDEO3
VIDEO2
VIDEO1
CD
PHONO
MD
/TAPE
MONI
PLAY
REC
OUT
Lch
H, P, Rch
H, P, Lch
Rch
Cch
Lch
Rch
LSch
RSch
SWch
SP-B
SP-A
AC IN
+5V
A.V.R
for
u-COM
+15V
A.V.R
A.V.R
-15V
+5V
+7V
-7V
A.V.R
5V
for E. VOL
u-COM
for FIL AC
(AUDIO & VISUAL)
TUNER etc.
for AMP (HI TAP)
for AMP (LOW TAP)
for RELAY SW
A2
J2
IC601,602
SWITCHED
D101
D103
D41
IC103
IC104
-30V
Q54
IC51
IC2
IC15
Q7
Q8
Q13
Q1
Q2
Q14
Q11
Q12
Q17
Q5
Q6
IC114
for INPUT SEL.
CIRCUIT
(1/2)
(2/2)
(1/2)
(1/2)
(2/2)
(2/2)
IC111
IC111
IC112
IC110
IC110
IC112
6ch INPUT
DVD
SUB
#S5
#S2
DIG
#S4
R,L
MIX
#S3
LS,RS
#S7
NOSUB
ANA
#S1
REC OUT BUF.
IC107
ANALOG REC
DIGITAL REC
D102
A.V.R
for
DIR etc.
A.V.R
3.3V
IC46
MUTE
J75
DSP
Lch
Rch
Cch
LSch
RSch
SWch
IC45
for DSP
A.V.R
5V
J1
J1
K1
K2
K3
K4
J2
PRE OUT
(L,R,C,LS,RS,1SW)
LSch
RSch
J2
J6
J7
IC101 or
IC102 or
10,15,16
Q3,4,9
CODEC
(ADC&DAC)
AK4110
IC5
A1
A3
OPTICAL
CD/DVD
MONI.
OPTICAL
COXIAL
COXIAL
OUT
DIGITAL
IN
AUDIO
DIGITAL
RECEIVER
6ch INPUT
DVD
AUDIO IN/OUT
20dB AMP
IC105
(VIDEO2/
MONI.)
VIDEO1
/MD
TAPE
(VIDEO2
/MONI.)
MONI.
FRONT AUX
J2
/12dB ATT
6dB/9dB
IC14
(NOT for K,P TYPE)
VIDEO1
VIDEO2
VIDEO3
6ch INPUT
VIDEO1
MONITOR
DVD
INPUT
FRONT
J66
J65
REC OUT
J71
TACT KEY
MAIN
u-COM
IC1
RDS
IC4
LED
ENCODER
FL
BU1923F
11-MT-120GK
ED1
IR REPEATER
SYNC
RF REMOCON
RECEIVER UNIT
DIR
J5
for DSP. AD/DA.
ANALOG 6ch
INPUT SELECTOR
VISUAL IN/OUT
LFE
DA
AD
2
BYPASS
SW
C
LS,RS
L, R
L, R
L
R
C
LS
RS
SW
C
LS/RS
L/R
+
+
+
+
+
+
+
4700uF
4700uF
3300uF
470uF
2200uF
3300uF
2200uF
+
2
5
IC2
6
2
(X07)
(X08)
VR-405/414/406/407/407-S/409
KRF-V3030D
EXCEPT for
USED
EXCEPT for
VR-405/406/414
KRF-V4530D/V5030D/V5030D-S/V5030DE
(X14)
USED VR-407/407-S/409/KRF-V7030D/V7030D-S/V8030D/V8030D-S/V3030D
(X14)
KRF-V6030D/V6030D-S/V6030DE
KRF-V3030D/V4530D/V5030D/V5030D-S/V5030DE
KRF-V6030D/V6030D-S/V6030DE
KRF-V7030D/V7030D-S/V8030D/V8030D-S
KRF-V8030D
KRF-V8030D-S
KRF-V8030D-S
KRF-V8030D
KRF-V3030D
(X08)
KRF-V7030D/V8030D/VR-407/409
3
BLOCK
DIAGRAM
background image
KRF-V7030D/V8030D/VR-407/409
4
CIRCUIT DESCRIPTION
(0 : Pull down, 1 : Pull up)
TYPE
BAND
Reception
frequency
Channel
IF
PLL standard
Diode
space
frequency
DSW3
DSW2
DSW1
DSW0
K1
FM
87.5MHz~108.0MHz
100kHz
+10.7MHz
25kHz
0000
1700
AM
530kHz~1700kHz
10kHz
+450kHz
10kHz
K2
FM
87.5MHz~108.0MHz
100kHz
+10.7MHz
25kHz
0001
1610
AM
530kHz~1610kHz
10kHz
+450kHz
10kHz
E1
FM
87.5MHz~108.0MHz
50kHz
+10.7MHz
25kHz
0011
AM
531kHz~1602kHz
9kHz
+450kHz
9kHz
E3
FM
87.5MHz~108.0MHz
50kHz
+10.7MHz
25kHz
RDS
AM
531kHz~1602kHz
9kHz
+450kHz
9kHz
0101
M
K2/E1 is switched with only the setting of DSW1
00X
1
(DSW1 = 0 : K2 type, 1 : E1 type)
This unit works backup by microprocessor if power is off. The
microprocessor carries out the power-off-checking by 1ms. It
sets up the initialized data if the backup data is destroyed.
Also plug in and out the power cord from the outlet with
pressing the power switch for initialization.
1. Backuped Data
A) Amp
Power on/off
Selector
Device preset
Video output
Speaker A relay on/off
Speaker B relay on/off
Volume level
Bass, Treble level
Input level(every inputs)
Subwoofer yes/no
Dimmer level
Monitor no/off
MD/TAPE mode
Video2/Monitor mode
b)Surround function
Listen mode(input:analog/PCM only)
Speaker setup
Distance(how far)
Left, Right, Center level
Surround level
Subwoofer level
Input mode(CD,Video2/3)
Midnight on/off(CD,Video2,3)
C)Tuner
Band
Preset channels
Receiving frequency
Auto/manual
2. Condition by the destination or model
3. Main microprocessor: X14,IC1(MN101C35DRA)
3-1 Microprocessor periphery block diagram
/SD, /STEREO, CH. SPACE
S. LEVEL
TUNER
LC72131
PLL. DO, PLL. DT, PLL. CK,
PLL. CE
PROTECTION
THERMAL. SENS, PROTECTION1
PROTECTION2
A/D KEY
AD. KEY1, AD. KEY2
ENCODER
VOL. ENC. A, VOL. ENC. B,
SEL. ENC. A, SEL. ENC. B
MN101C35DRA
8MHz
OSC
X1
POWER. RLY, SPA. RLY, SPB. RLY
CENTER. RLY, SURR. RLY,
LIMITER, PACK. CONT
RELAY
STANDBY. LED, DTS. LED,
DOL. DIG. LED, PROL. LED,
3STEREO. LED,
CS. LED(DOWNMIX. LED)
LED
FL
11-MT-120GK
X14, ED1
REMOCON
X07, IC202
X07, IC201
X14, IC1
X07, IC106, 109/X08,IC12,14
SEL. DT, SEL. CLK, SEL. ST1,
SEL. ST2
NJU7313AM, NJU7311AM
X08, IC51
DSP. INTREQ, DSP. CDIN,
DSP. CDOUT, DSP. CCLK,
DSP. CS, DSP. PD
CS493263 or CS493253
X08, IC2
AK4527
CODEC. CDIN, CODEC. CDOUT,
CODEC. CCLK, CODEC. CS,
CODEC. PD, CODEC. DZF1
X08, IC5
DIR. CDIN, DIR. CDOUT, DIR.
CCLK, DIR. PD, DIR. ERR
AK4110
MUTE
/A. MUTE, /PRE. OUT. MUTE
/T. MUTE, /20dB. ATT
SERIAL
S. DATA, S. BUSY
X08, IC15
M62446FP
VOLDT, VOL. CLK, VOL. ST
X14, IC4
BU1923F
RDS. CLK, RDS. DATA
background image
KRF-V7030D/V8030D/VR-407/409
5
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
1
S. DATA
I/O
Serial data signal.
2
S.BUS
I/O
Serial busy signal.
3
SEL. ST1
O
Strobe output to input selector ( IC106).
4
SEL/VOL/PLL DT
O
Data output to selector,volume and PLL IC.
5
SEL/VOL/PLL CLK
O
Clock output to selector,volume and PLL IC.
6
SEL. ST2
O
Strobe 2 output to input selector ( IC109).
7
PLL. CE
O
PLL chip enable.
8
Vdd (+5v)
-
Power supply.
9
OSC OUT
O
8MHz clock output.
10
OSC IN
I
8MHz clock input.
11
Vss
-
Connected to ground.
12
X IN
-
Connected to ground.
13
X OUT
-
No used.
14
MMCD
-
Connected to ground.
15
Vref-
-
Connected to ground.
16,17
KEY2,KEY1
I
Input terminal of key1 and key2.
18
MODEL TYPE
I
Discrimination port of models.
19
TH. SENS
I
No used.
20
PROTECT
I
Detection port of protection signal 1.
21
PROTECT2
I
Detection port of protection signal 2.
22
S.LEVEL/CH SPACE
I
RDS S level and channel space changeover.
23
PLL DO
I
RDS PLL data signal input.
24
Vref+
-
Reference voltage of AD converter..
25
CE
I
Chip enable.
26
RESET
I
Reset signal input.
27
T. MUTE
O
Muting signal output to tuner.
28
RF ST
O
CE signal output of RF receiver IC.
29
RF DT
O
Data signal output of RF receiver IC.
30
RF CLK
O
Clock signal output of RF receiver IC.
31
VOL.ST
O
Latch output of electric volume.
32
DSP INTREQ
I/O
Detection port of DSP INTREQ.
33
DTS DET
I
Detection port of DTS data.
34
REMOCON
I
Remote control signal input.
35
DIR ERR
I
Detection port of DIR error signal.
36
DZF
I
Detection port of CODEC zero input.
37
RDS.CLK
I
RDS clock input.
38
RDS.DAT/CE2
I
RDS data input./u-COM chip enable 2.
39
DSP/DIR/CORDEC CDIN
O
Serial data output.
40
DSP/DIR/CDOUT
I
Serial data input.
41
DSP/DIR/CORDEC CCLK
O
Clock output to IC2, IC5 and IC51on X08.
42
DSP CS
O
DSP chip select.
43
DSP PD
O
DSP power down.
44
DIR CODEC CS
O
CODEC chip select.
45
DIR CODEC PD
O
DIR CODEC power down.
46
NO USE
-
No used.
47-57
1G-11G
O
FL grid control(1G-11G).
58-74
P1-P17
O
FL segment control(P1-P17).
75
PACK CONT.
O
Power pack control.
76
LIMMITER
O
Control port of A class power supply.
77
REAR RE
O
Relay control terminal of surround speaker.
78
CENTER RE
O
Relay control terminal of center speaker.
79
FB RE
O
Relay control terminal of front B speaker.
80
FA RE
O
Relay control terminal of front A speaker.
3-2 Pin description

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