Kenwood VR 307 Service Manual

Page 2

KRF7V7020(E)COVER1,1( 99.10.28 7:33 PM Ks/3 /\

KRF-V7020DN8020D/VR-307/309/357

CONTENTS / ACCESSORIES / CAUTIONS

Contents
CONTENTS / ACCESSORIES / CAUTIONS ..... ....2 WIRING DIAGRAM ......
DISASSEMBLY FOR REPAIR ...... 3 PC BOARD .....
CONTROLS .............. 4 SCHEMATIC D
BLOCK DIAGRAM 6 EXPLODED VIEW
CIRCUIT DESCRIPTION ....7 PARTS LIST ..............
ADJUSTMENT .......................................................... 14 SPECIFICATIONS ..................................................... 45
Accessories
f N
FM indoor antenna (1) r- AM loop antenna (1) - l Batteries (Rog/AAA) (4)
(T90-0836-05) i (T90-0833-05) Loop antenna and (1) I
i l o,
® *
: \ . l
l l
Remote control unit(1) Remote control unit(1) AC plug adaptor (I)
RC-R0508/R0608 RC-R0712 (E03'0115'05)
« , Use to adapt the
sci/VQOOOOCIOOG I" plug on the power
""020é400(9>2«%882 cord to the shape
7 V of the wall outlet.
Battery cover (A09-0366-08) Battery cover (A09-1123-08) (Accessoryonly for regions where use
is necessary.)
\ J
(3
Model name vs remote controller
Remote Controller
Model Destinations Parts number Model name Battery Cover
KRF- V70200 X7,C7,Y7,V7,M7 A70-1268-05 RC-RO712 A09-1123-O8
KRF- V8OZOD X8 A70-1275-05 RC-R0508 A09-0366-08
KFIF- VBOZOD C8, |8,Y8,M8 A70-1277-05 RC-R0608 A09-0366-08
VR-30 7 K6, P6 A70-1268-05 RC-RO712 A09-1123-O8
VR-309 K8, P8 A70-1277-05 RC-R0608 A09-0366-08
VR-357 K7, P7 A70-1277-05 RC-R0608 A09-O366-O8
Cautions

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.

For U.S.A. and Canada

Unplug the power cord from the wall outlet, then plug it
back in while holding down the POWER key.

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
oi the memory and returns the unit to the state it was in when it left the
factory.

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