Kenwood KRFV 7510 D Service Manual

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JVRE208(K)COVERE2PI98.4.2416131 y [w 3 44%
KRF-V7510D/V8010D/VR-208/209

CONTENTS / ACCESSORIES

Contents

CONTENTS / ACCESSORIES ...2 PC BOARD ......................

CONTROLS ................................ ...3 SCHEMATIC DIAGRAM ..

DISASSEMBLY FOR REPAIR... ...5 EXPLODED VIEW ..

BLOCK DIAGRAM ............. 6 PARTS LIST .........

CIRCUIT DESCRIPTION 7 SPECIFICATIONS ..

ADJUSTMENT ................... . 1

Accessories

K W

FM indoor antenna (1)
(T90-0810-05)

-- AM loop antenna (1)
(T90-0833-05)

' AC plug adaptor (1)
Remote control unIt (1) Batteries R03/AAA 4
(A70-l194-05) :KPtY1K1P2Y2M1 ( H ) (E03-0115-05)
(A70-t195-05) : v

a , Use to adapt the

r Tijnammm, Q I plug on the power

\ Kathi)? 9338883 ..I Q cord to the shape
l cm :9 OQZnggg¢LJ of the wall outlet.
# 7 7., (Accessory only for regions where use

Battery cover (A09-0366-08) is necessary.)

Resetting the Microcomputer

Itthe microcomputer may malfunction (unit cannot be operated, For U.$.A. and Canada

or shows an erroneous display) if the power cord is unplugged _
while the powerisON, ordueto some otherexternalfactor. ltthis Unplug the power cord from the W3 outlet, then plug '1
happens, execute the following procedure to reset the micro- baCk 1 While holding down the POWER key.

computer and return the unit to its normal operating condition.
For other countries
With the power cord plugged in, turn the POWER key
OFF. Then, while holding down the ON/STANDBY key,
press POWER.

- Please note that resetting the microcomputer will clear the contents
ofthe memory and returns the unit to the state it was in when it left the
factory.

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VR7208(K)COVER729(98.4.241631 y [w 1

KRF-V7510D/V8010D/VR-208/209

4%

SPECIFICATIONS

For U.S.A. and Canada

A UDIO section

Rated power output during STEREO operation
VR-209

100 watts per channel minimum RMS, both channels driven, at
8 er0m 40 Hz to 20 kHz with no more than 0.7% total harmonic
distortion.(FTC)

V R-208

50 watts per channel minimum RMS, both channels driven, at
8 erom 40 Hz to 20 kHz with no more than 0.7% total harmonic
distortion.(FTC)

Effective power output during SURROUND operation
VR-209
FRONT (1kHZ, 0.7% T.H.D. at 8 £2)
CENTER (1 kHz, 0.7% T.H.D. at 8 £2) .
SURROUND (1 kHz, 0.7% T.H.D. at 8 Q

100W+100W
.100W
100W+100W

VR-208

FRONT (1kHz, 0.7% T.H.D. at 8 £2)
CENTER (1 kHz, 0.7% T.H.D. at 8 £2) .
SURROUND (1 kHz, 0.7% T.H.D. at 8 Q

.50W+50W
....... 50W
.50W+50W

Total harmonic distortion
02%(1 kHz, 50w, 8 Q)
02%(1 kHz, 25W, 8 Q)

Y

PHONO (MM). 25 mV / 27 k9

CD 200 mV / 47 k0
Output level mpedance

TAPE REC 200 mV /1 k9

PRE OUT (CENTER, SURROUND). .. 1 V /1 k9

PRE OUT (SUBWOOFER)1 V / 6000
Tone control

BASS 10 dB (at 100 HZ)

TREBLE 10 dB (at 10 kHz)
DIGITAL AUDIO section
Sampling Irequency 32 kHz, 44.1 kHz, 48 kHz
Input level/ pedance / wave length

Optical -15 dBm ~ -21 dBm, 600 nm :30nm

Coaxial 0.5 Vp-p l 75 Q

Note:

VIDEO section

VIDEO inputs / outputs
VIDEO (composite) 1 Vp-p / 75 (2
FM tuner section

Tuning frequency range
Usable sensitivity (MONO)
1.6 uV (75 Q)/ 15.2 dBI (75 kHz DEV., SINAD 30 dB)

87.5 MHZ ~ 108 MHZ

50dB qu g sen
STEREO . 31.6 uV (75 £2)/ 41.2 dBI
Total harmonic d stort n (1 kHz)
MONO .. .6% (65 dBl input)
STEREO . 7% (65 (151 input)

Signal to noise rat
MONO ..
STEREO .

Stereo separation (1 kHz) .

Selectivity (:400 kHz).

Frequency response ..

(1 kHz, 75 kHz DEV.)
.. 75 dB (65 dBt input)

AM tuner section

Tuning trequency range
10 kHz step
Usable sens' 'vtty ( 0

.. 530 kHz ~ 1,700 kHz

. 16 uv / (600 LIV/m)
...... 50 dB
GENERAL
Power consumption 2.2 A
AC outlet
SWITCHED 2 (total 150 W, 1.25 A max.)

Dimensions ..................................................... W : 440 mm (17-5/16")
H : 144 mm (5-11/1 ")

D : 400 mm (15-3/4")

Weight (Net)
VR-209 .
VR-208 .

. 8.7 kg (19.2 lb)
. 7.7 kg (17.0 lb)

1. KENWOOD follows a policy of continuous advancements
@ in development. For this reason specltications may be
I changed without notice.
2. The lull performance may not be exhlbited ln an extremely
cold location (underawatentreezmg temperature).

Component and circutt are subyect to modification to Insure best operation under dlflering local condltlons. This manual 1s based on Europe (E) standard. and provides
informatlon on regional circuit modlflcatmn through use of alternate schematic dlagrams, and intormation on regional component varlatlons through use of parts list.

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