(Accessory only for regions where use
is necessary.)
AM loop antenna (1)
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 microcomputer 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.
Use to switch the power ON/STANDBY
when the POWER is turned ON.
STANDBY indicator
2 POWER key
(Except for U.S.A. and Canada)
Use to turn the main power ON/OFF.
3 DOLBY DIGITAL indicator
Lights when the receiver is in the Dolby
Digital mode.
4 CLIP INDICATOR
Lights when the input signal is too large to
be handled by the receiver, and "clipping"
is occurring.
5 DIMMER key
Use to adjust the brightness of the display.
6 P.CALL keys
Use to call up previously registered radio
stations.
7 BAND key
Use to select the broadcast band.
8 AUTO key
Use to select the auto tuning mode.
9 MEMORY key
Use to store radio stations in the preset
memory.
0 VOLUME CONTROL knob
! PHONES jack
Use for headphone listening.
@ SPEAKERS A/B keys
Use to turn the speakers ON/OFF.
# BASS BOOST key
Use to select the maximum adjustment
setting for the low frequency range.
About the STANDBY indicator
This unit has a STANDBY indicator. When the STANDBY indicator is lit, the unit consumes a small amount of power to preserve the memory. This is called
STANDBY mode. This mode also lets you turn the power ON using the remote control.
Frequency display,
Input display,
Preset channel display,
Surround mode display
Use to switch between the digital and
analog inputs.
& LISTEN MODE key
Use to select the listening mode.
* SOUND key
Use to adjust the sound quality and ambience effects.
( SETUP key
Use to select the surround sound settings.
) MULTI CONTROL knob
Used to make a variety of settings.
¡ INPUT SELECTOR knob
Use to select the input sources.
For U.S.A.
and Canada
CONTROLS
STANDBY
POWER
ON / STANDBY
SP
B
A
1
STANDBY
ON / STANDBY
POWER
- ON – OFF
PHONES
2
AV SURROUND RECEIVER
MUTE
LS
L
A
LFE
SPEAKERS
R
C
SW
S
RS
DOLBY DIGITAL
CLIP INDICATOR
B
*
*******
BASS BOOST
394
MONITOR
57 86
SOURCE
DIRECT
P.CALL P.CALL
DIMMER
INPUT MODE LISTEN MODE
FM
AM
MHz
;
SOUND
SETUP
kHz
BAND
AUTO
MULTI CONTROLINPUT SELECTOR
AUTO SOUND
PRO LOGIC
3 STEREO
DOWNMIX
AUTO
DIGITAL
MEMO.
S.DIRECT
MONITOR
ST.
TUNED
MEMORY
0
DOWN
VOLUME CONTROL
UP
¡)^%$#@!& *(
3
KRF-V7510D/V8010D/VR-208/209
8 FUNCTION SHIFT key
Use in combination with the numeric keys
to execute alternate commands.
9 Numeric keys
Provide functions identical to those of the
original remote control supplied with the
component you are controlling.
To access the functions printed above the
keys, press within 3 seconds of pressing
the FUNCTION SHIFT key. Function availability varies for each component.
0 SHIFT key
Use in combination with the AUDIO and
VIDEO keys to change the remote control
mode without changing the input selector
or in combination with the POWER key to
turn on and off components programmed
into the remote control.
! TV selector key
Sets the remote control to operate a TV or
cable box. This key does not change the
input selector on the receiver.
@ AUDIO selector key
Selects the audio inputs and sets the remote control to operate the respective
KENWOOD audio component.
If you connect audio components from
KENWOOD and other makers to the MD/
TAPE or CD jacks, you can set the remote
control to operate these components by
registering the appropriate setup code at
the respective input.
# GUIDE key
Use to activate the OSD menu functions of
registered components.
$ VOLUME key
Use to adjust the receiver volume.
% MUTE key
Use to temporarily mute the sound.
^ SOUND key
Use to adjust the sound quality and ambience effects.
& LISTEN MODE key
Use to select the listening mode.
* SETUP key
Use to select the surround sound settings.
1 POWER key
Use to turn the receiver on and off.
Use in combination with the input selector
(AUDIO, VIDEO, or TV) keys and SHIFT
key to turn various components on and off.
2 MACRO key
Use in combination with the AUDIO, VIDEO,
or TV keys to execute a series of commands automatically (MACRO PLAY).
3 VIDEO selector key
Selects the video inputs and sets the remote control to operate the component
registered at the respective input.
4 Multi control keys
Use to operate the selected component.
5 REC key
Use to operate the selected component.
6 TUNING/SKIP key
Use during the setup procedure to specify
various settings. Use to operate the tuner
or selected component.
7 SUBWOOFER key
Use in combination with the VOLUME +/–
keys to adjust the volume of the subwoofer.
There are some cases in which keys (or
knobs) that have the same function on
the receiver and on the remote control
have different names. In the instructions of this manual, if the names of
corresponding keys (or knobs) on the
receiver and remote control are different, the name of the remote control key
is indicated in parentheses.
CONTROLS
1
2
3
4
5
6
7
8
9
POWER
SHIFTMACRO
AUDIO
P. CALLP. CALL
BAND
6
4¢
MUTE
LISTEN
MODE
FUNCTION
SHIFT
THEMEFAVMENU
REPEATRANDOM+100
DISPLAY
TVVIDEO
8
7
GUIDEREC
VOLUMETUNING/SKIP
SOUNDSUBWOOFER
SETUP
231
INFOALT AUDTV/SAT/VID
564
897
ENT+10
0
0
!
@
#
$
%
^
&
*
4
KRF-V7510D/V8010D/VR-208/209
1
2
2
4
4
4
3
3
x2
x2
x3
(VR-257)
DISASSEMBLY FOR REPAIR
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)
5
6
IC2
2
+
470uF
3300uF
ONLY
for 100W
2200uF
470uF
3300uF
ONLY
for 100W
4700uF
3300uF
for 50W
3300uF
4700uF
for 50W
+
+
+
+
+
L/RLS/RSC
DIR
SW
RS
LS
C
R
L
LS, RS
C
SW
BYPASS
2
2
+
+
AD
DA
LFE
L, R
L, R
(X08)
(X09)
(X08)
(X00)
(X14)
VR-209
D3-6
or 20.0V/8
IC12
IC11
IC11
IC12
IC10
IC10
(2/2)
(2/2)
(1/2)
(1/2)
(2/2)
(1/2)
T1
D1-4
CONVERTER
DIR
DA&AD
TC9162AF
UNIT
INPUT SEL.
IC7(3/3)
ED51
IC51
K3
2
2
DOL.DIG,P.LEVEL)
(SDATA, SBUSY)
SYNCHRO
PROTECTION
(DATA, CLK)
E2ROM
5
8TUNER
PLLDT, PLLDO, PLLSD,
STEREO, SLEVEL)
RESET
(SCK,SI,SO,IC)
3
3
(VIDEO A, VIDEO B,
VMUTE)
RELAY C, RELAY S)
VIDEO
E-VOL
(VOL STB, VOL CLK,
VOL DT)
10dB ATT
MUTE
(TMUTE, PLLCE, PLLCLK,
(STANDBY
4RELAY
(RELAY FA, RELAY FB,
POWER RELAY
u-COM
CXP82532-141Q
AC-3
LED
7
8
3
11GRID
SEGMENT
KEYSCAN
KEY RETURN
FL
KEY MATRIX
REMOCON IN
ROTARY ENC 6
28.3V/8
SP. 5ch OUTPUT
PRE OUT
C, SL, SRch
SWch2V/2.2K
1V/2.2K
K2
K4
K1
IC3
IC4
Q16
Q12
Q11
Q13
Q10
Q9
Q8
Q6
Q5
Q7
Q4
Q3
IC9
IC5
IC19,20
HPF
IC13
IC12
IC16
IC17
(1/2)
IC15
(1/2)
IC14
(2/2)
IC15
(2/2)
IC14
IC2IC1
Q2
IC10
-30V A.V.R
IC2
IC1
D5
D2
D1
S1
SWITCHED
Q1
K1(ONLY for J, E, T TYPE)
VIDEO SEL
IC6(3/3)
IC8
IC11
IC7(2/3)
IC6(2/3)
IC7(1/3)
VIDEO IN/OUT
IVP-P/75
OUTIN200mV/2.2K
200mV/47K
AUDIO
IC6
IC22
(2/2)
IC22(1/2)IC23(1/2)
IC23(2/2)
IC21
PHONO
2.5mV/47K
IC6(1/3)
IC5
IC3
J1
A1
TC9164AF
TC9163AF
for RELAY SW
for
ONLY for 100W
AMP (LOW TAP)
for AMP (HI TAP)
TUNER
(AUDIO and VISUAL)
for FIL
for DSP, AD/DA, DIR
for u-COM (-30V)
for E. VOL
for
for E. VOL
5V
A.V.R
-7V
+7V
+5V
-15V
A.V.R
A.V.R
+15V
u-COM
for
A.V.R
+5V
AC IN
SP-A
SP-B
REC OUT
SWch
Cch
SRch
SLch
SRch
SLch
Rch
Lch
Cch
Rch
H, P, Lch
H, P, Rch
Lch
REC
OUT
OUT
REC
PLAY
MONITOR
VIDEO1
VIDEO1
VIDEO2
VIDEO3
VIDEO1
TAPE1
/MD
TAPE2
/MONI
PLAY
/MONI
TAPE2
/MD
TAPE1
PHONO
CD
VIDEO1
VIDEO2
VIDEO3
DIGITAL
IN
VIDEO2
OPTICAL
COXIAL
VIDEO3
-B LOWTAP
+B LOWTAP
-B HITAP
+B HITAP
MUTE10dB ATT
or
STK407-290
STK410-030
or
STK411-230
STK407-090
BUF
x0.5
SWch
RSch
LSch
Cch
Rch
x0.6
ATT
HPF
HPF
x0.5
ATT
DSP
YSS248
MIXx2
BUF
IC18
SW LPFSW MIX
x1x0.3x0.3x0.6
x1x2x2x2
LPFLPFLPFLPF
ATT OFF
ATT 1
ATT 2
CS4226
NJM2279M
IC4
TUNER
PHONO EQ
LINE BUF
Lch
TONE CONT.
with
6ch E. VOL
M62446SP
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
KRF-V7510D/V8010D/VR-208/209
BLOCK DIAGRAM
CIRCUIT DESCRIPTION
FL DISPLAY (X09) ED51
11GRID
17SEGMENT
X8
X3
X3
X4
X3
X3
X2
X2
X2
(X09) S517
SERIAL
BUSY
DATA
VOLUME
ENCODER
(X09) S519
MULTI
ENCODER
(X09) S518
SELECTOR
ENCODER
(X09)
X4
X1
X3
X3
8.0MHz
CE
RESET
X3
X1
X3
X2
(M TYPE ONLY)
AUDIO MUTE
TUNER MUTE
TUNER (X09) IC2
(X09) IC1
-10dB ATT
SD
STEREO
X1
11-MT-116GK
LED
(PEAK. LEVEL)
(DOLBY DIGITAL)
(STANDBY)
(X09) IC6,7
AUDIO SELECTOR
(X08) IC4
NJM2279M
(X09) A501
REMOCON
VIDEO SELECTOR IC
TC9163/9164
CXP82832-141Q
(X00) POWER Relay - (K1)
SP. A RELAY - (K1)
SP. B RELAY - (K2)
SURR RELAY - (K3)
CENTER RELAY - (K4)
(X08) IC1
DSP IC
(X08) IC2
DAC IC
YSS248
CS4226
(CRYSTAL)
(X09) IC5, 6
FUNCTION SW
(X09) IC9
VOLUME IC
(X09) IC52
E2PROM
M62446FP
LC72131
X24CO2
(XICOR)
TC9162/9164
12
KR0
13
KR1
14
KR2
81
KS0 P.CH DOWNON/STANDBYSPEAKER A
80
KS1P.CH UPDIMMERSPEAKER B
79
KS2BANDLISTEN MODEBASS BOOST
78
KS3AUTOSOUNDMONITOR
77
KS4MEMORYSETUPSOURCE DIRECT
76
KS5INPUT MODE
75
KS6DSW0DSW1DSW2
74
KS7
* No. of : u -COM Port NO.
DSW3DSW (AC3)
Key matrix
1. Microprocessor CXP82832-141Q(X09 : IC51)
1-1 Microprocessor periphery block diagram
KRF-V7510D/V8010D/VR-208/209
7
KRF-V7510D/V8010D/VR-208/209
CIRCUIT DESCRIPTION
1-2 Pin description
Pin No.Pin NameI/ODescription
1,2G10,11ODisplay grids 10,11
3None–Ic test mode port.
4,5NoneINo connect
6AUDIOIAudio signal detection port. L=AUDIO.
7VOL.ENC.AIVolume encoder A(clockwise) output.
8REMOCONIRemote contol signal input.
15PROTECTIProtection signal detection port. H=PROTECT.
16S.DATAI/OSerial DATA signal.
17S.BUSYI/OSerial BUSY signal.
18E2.DTI/OE2 PROM data.
19E2.CLKI/OE2 PROM clock.
20SEL.ENC.AISelector encoder A(clockwise) input.
21SEL.ENC.BISelector encoder B(counterclockwise) input.
22MULTI.ENC.AIMulti encoder A(clockwise) input.
23MULTI.ENC.BIMulti encoder B(counterclockwise) input.
24SER.INISL16/XS8 selector. H=16bit.
25AC3.SCKOYSS248 clock output.
26AC3.SIIYSS248 data input.
27AS3.SOOYSS248 data output.
28Vdd–Analog power supply(+5V)
29NoneINo connect
30SEL.ST2OTC9162AF/63AF/64AF st2 output. H=latch.
31AC3.CSOYSS248 CS output.
32CODEC.CSOCS4226 CS output.
33PLL.DOIPll ic do signal input port.
34PLL.STITuner stereo signal detection port. L=STEREO.
35PLL.SDITuner sd signal detection port. L=TUNED.
36RCV.CEIReceiver chip enable signal port. L=ENABLE.
37Avss–Analog GND.
38RESETIMicroproessor reset signal.
39,408MHzIMain clock generation(8MHz).
41Vss–Microprocessor GND.
42NoneINo connect
43TEX–GND.
44Vdd–Power supply(+5V).
45Vfdp–Power supply(-33V).
46SEL.ST1OTC9162AF/63AF/64AF st1 output. H=latch.
47PLL.DTOPll ic data signal output port.
48PLL.CKOPll ic clock signal output port.
49PLL.CEOPll ic ce signal output port.
50T.TUNEOTuner mute control. L=mute on.
51A.MUTEOOutput mute control. L=mute on.
52SW.MUTEOSub woofer mute control. L=mute on.
5310dB.ATTOVolume 10dB attenuation control. H=att. on.
54VOL.DTOVolume ic (M62446SP) data control.
55VOL.CKOVolume ic (M62447SP) clock control. H=active.
56VOL.STOVolume ic (M62448SP) st control. H=active.
57VCR.MUTEOVideo ic (NJU2279D) cont2/4 mute control. L=mute on.
58VCR.AOVideo ic (NJU2279D) cont1 mute control. H/L=static.
59VCR.BBOVideo ic (NJU2279D) cont3 mute control. H/L=static.
60FA.RLYOFront A speaker relay control. H=relay on.
8
KRF-V7510D/V8010D/VR-208/209
CIRCUIT DESCRIPTION
Pin No.Pin NameI/ODescription
61FB.RLYOFront B speaker relay control. H=relay on.
62C.RLYOCenter speaker relay control. H=relay on.
63S.RLYORear speaker relay control. H=relay on.
64POWER.RLYOPower relay control. H=relay on.
65STANDBY.LEDOStandby led control.L=led on.
66DOL.DIG.LEDODolby digital led control.L=led on.
67P.LEVEL.LEDOPeak level led control.L=led on.
68-70NoneONo connect
71PACL_CTLONon oscillation of power pack ic at power off. L=stop oscillation.
72AC3.ICOYSS248/CS4226 initial clear port.