Kenwood KA-894 User manual

KA-804/904/V3700
+
KENWOOD
SERVICE MANUAL
©1994-1 PRINTED IN KOREA
B51-4846-00(K)3576
( KA-994 )
Knob(BASS/TREBLE)
Panel
Dressing
plate
Metallic
cabinet
(K29-5838-04)
(A60-0539-1
1)
(BO03-2890-23)
(AQ1-3098-11)
Foot Phone jack Knob(SURROUND) Knob(INPUT SELECTOR)
(JO2-0366-15) (E11-0127-05) (K29-5849-02) (K29-5866-04)
Knob(POWER/SPEAKERS)
(K29-5850-03)
Knob(VOLUME CONTROL)
(K29-585 1-04)
Phono
jack
(8P)
Miniature
phone
jack
Phono
jack
(4P)
—
Phono
jack
Power
cord
bushing
AC
power
cord*
(E63-0070-15)
(E11-0188-05)
(E63-0046-15)
(E63-0072-15)
(J42-0083-05)
(E30-)
(K, P, R Type)
Phono jack (4P)
(E63-0069-15)
Phono jack (6P) Phono jack (2P) Lock terminal board Phono jack AC outlet*
(E63-0047-15) (E63-0068-15) (E70-0048-05) (E63-0090-05) (E03-)
*Refer to parts list on page 34,

KA-894/994/V3700
CONTENTS
ACCESSORIES
........000+
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2
PC
BOARD
......cccccccccvccccccsccccecccceccenccsaaces
15
REMOTE
CONTROL
......-
a
eb
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4
SCHEMATIC
DIAGRAM
.....-scseccccccccccsccenscoccces
23
BLOCK
DIAGRAM
......-scccccccccccccccsscccccecesences
6
EXPLODED
VIEW
........ccecscscccccccccccecnssascoenes
33
CIRCUIT
DESCRIPTION
......
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7
PARTS
LIST
.....csccscccccccccccccescccccncccccscsaoucs
4
ADJUSTMENT
......ssccccccccccscccccccsccccccccscesccs
13
SPECIFICATIONS
.........sscccceecccscecccsvececcssonses
43
WIRING
DIAGRAM
.......+eeseseesecesesssssssseenesees
14
ACCESSORIES
© Remote Control Umit... seccseceeeeenees
(A70-0974-05)
KA-894/V3700
(A70-0961-05)
KA-994
0 gedaan)
Battery
cover
(A09-0170-08)
Battery
cover
(A09-0169-08)
RC-RO801
©
AC
pig
Adaptor
oon...
eesensssssesssecennseene
©
Batteries(RG/AA)
.......ssssccssssssssseenessseeees
(F03-01
15-05)
(—)
KA-994,
894(M)
Ze
ow
OG
Q
( KA-894 / V3700 )
Knob(BASS/TREBLE)
Panel*
Dressing
plate
Metallic
cabinet
Knob
(VOLUME
CONTROL)
(K29-5838-04)
(A60-)
(BO3-2890-23)
(A01-3098-1
1)
(K29-5851-04)
a
Knob(POWER)
Foot"
Phone
jack"
Knob{SURROUND)
KnobNPUT
SELECTOR)
Knob(SPEAKERS)
(K29-5850-03)
(02-)
(E115)
(K29-5849-02)
(K29-5866-04)
(K29-5850-03)
Photo
is
KA-V3700.
*Refer
to
parts
list
on
pzage
34.

KA-894/994/V3700
( KA-894 )
Phono jack (8P) Miniature phone jack Phono jack (4P) Power cord bushing AC power cord*
(E63-0070-15) (E11-0188-05) (E63-0046-15) (J42-0083-05) (E30-)
— 6, (K, P, R Type )
Phono jack (6P) Phono jack (2P) Lock terminal board Lock terminal board AC outlet*
(E63-0047-15) (E63-0068-15) _(E70-0048-05) (E20-0236-05) (E03-)
( KA-V3700 )
Phono jack (8P) Miniature phono jack Phono jack (4P) AC outlet* AC power cord* Power cord bushing
(E63-0070-15) (E11-0188-05) (E63-0069-15) (E03-) (E30-) (J42-0083-05)
ONTO
Phono jack (6P) = Phono jack (2P) Phono jack (4P) Lock terminal board — Lock terminal board Slide switch
(E63-0047-15) (E63-0068-15) (E63-0046-15) | (E70-0048-05) (E20-0236-05) (S62-0034-05)
*Refer to parts list on page 34,

KA-894/994V3700
REMOTE
CONTROL
REMOTE
CONTROL
ASSY
:
A70-0961-05
(KA-994)
Operating
the
KR-V8060
or
KA-994
+.
Press
the
AUDIO
key
to
dispiay
“AUDIO”.
2
Press
the
POWER
key
to
turn
the
power
of
the
main
unit
{KR-V8060
or
KA-994)
ON.
3
Press
operation
keys.
*
The
keys
covered
with
9
are
not
used
in
the
operation
of
the
receiver
Select AUDIO.
Each press switches the sources §
as follows E
+ AUDIO
2 CD
iD
TVCABLE
3
TAP
A
(Tape
A)
4 TAP B (Tape 8)
POWER key :
f . :
Numeric keys }
Function as the numeric keys of
tne tuner when the TUNER input 's
selected
Surround-related keys
For the adjustment procedure, please
refer to pages 20 to 25 with the KR-
V8060 or pages 9 to 12 with the KA-
994
Center level adjustment keys
Effect
level
switch
key*®
:
Presence mode switch key*
Press to mute the sound tempo-
tarily. E
Test
tone
key
VOLUME
keys
L
Press
to
adjust
the
volume.
When
|
these
kevs
are
cperated,
the
VOL-
|
eimai
UME
CONTROL
knob
on
the
re-
|
ceiver
unit
rotates
and
the
indicato
on
the
knob
biinks
at
a
high
speed
Surround mode switch key
Delay time adjustment keys
KENWOOD
REMOTE CONTROL UNIT
RC-RO801
INPUT keys
P:
Model: RC-R0801
Infrared ray system
ee,

ne
REMOTE CONTROL ASSY : A70-0974-05 (KA-894/V3700)
Cassette tape deck
operation keys
Available for the
cassette tape deck
connected through
the SYSTEM CON-
TROL terminals.
When using a single
cassette tape deck,
use the TAPE B keys.
poneh operation
eys
PRESET CALL:
Select the preset
stations.
BAND: Switches
the bands.
CD player keys
DISC: The DISC key
can be used the disc
selector key of a
multi-disc player
with a disc changer.
For details, read the
instruction manual
provided with the
CD player.
INPUT select key
Change the input
source.
POWER key
Turn the power of
components ON/
OFF.
MUTE key
Press to mute the
volume temporarily.
VOLUME CONTROL
keys
Adjust the volume
level of the unit.
KA-894/994V3700
raeaal operation
eys
M.CALL: Recall the
equalizerd patterns
stored in memory.
EFFECT: Turn the
graphic equalizer
effect ON and OFF.
SURROUND
processor operation
ke
MODE: Change the
surround mode
among Dolby PRO
LOGIC, Dolby 3
STEREO, BYPASS
(OFF).
REAR: Press to adjust
the rear level.
CENTER:Press to
adjust the center
level.
DELAY: Press to
adjust the delay time.
MULTI LEVEL CON-
TROL: Press to adjust
the level of the rear,
center, delay time.
TEST TONE: Press to
switch the TEST
TONE ON and OFF.
Note:
Change the mode
among NORMAL,
WIDE, PHANTOM
with CENTER MODE
key on the main unit.
Type: RC-S0800
System: infrared control

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KA-894/994
/V3700
INVYSVIG 19018
OOLEAPOG/P68-V)

KA-894/994/V3700
CIRCUIT
DESCRIPTION
TEST MODE
) To get in the TEST MODE
Plug the AC power cord in the wall outlet while
pushing the SPEAKERS key.
All indications light up.
@) To cancel the TEST MODE
Unplug the AC power cord from the wall outlet.
@) Operation during the TEST MODE
<1>
The
TEST
MODE
starts
with
all
indications
lit
up
and with POWER ON.
© The Light up state returns to the normal
operation state when any key of the main unit
is pushed.
<2>
Keys
that
have
different
functions
from
their
normal functions in the test mode
BALANCE L Three steps change from R to Center to L.
BALANCE R Three steps change from L to Center to R.
DELAY TIME + Three steps change from Minimum to Center to
Maximum.
DELAY TIME— _ Three steps change from Maximum to Center to
Minimum.
CENTER LEVEL + Three steps change from Minimum to Center to
Maximum.
CENTER
LEVEL
—
Three
steps
change
from
Maximum
to
Center
to
Minimum.
REAR LEVEL + Three steps change from Minimum to Center to
Maximum.
REAR LEVEL— Three steps change from Maximum toCenter to
Minimum.
8Q/4Q Switch — Switch status is indicated by TAPE 2 display.
8Q: TAPE 2 display goes off.
4Q: TAPE 2 display lights up.
At any time TAPE 2 display is indicated,
however H/L
switch of 70W/100W control port (pin no.9) is
switched when. . .
Power ON or OFF
SPEAKER ON or OFF
DOLBY Mode or BYPASS
Switching with INPUT SELECTOR
INITIAL SETTING
@ Initial setting
Plug
the
AC
power
cord
in
the
wall
outlet
while
pushing the SPEAKERS key.
© All memorys are cleared.
©
The
backup
operation
is
returned
to
the
normal
operation.
SERIAL TEST MODE
@ To get in the SERIAL TEST MODE
Enter the TEST ON code (71).
@) To cancel the SERIAL TEST MODE
Enter the TEST OFF code (70), unplug the AC power
cord
from
the
electrical
outlet,
or
RESET
the...
equipment.
© The operation returns from the test mode to the —
normal mode.
@) Operation during the SERIAL TEST MODE
© The following functions become ineffective during
the test mode.
© Keys of the main unit, keys of the remote
controller, ordinary serial codes.
The same codes as the received ones are cutputted.
Output of the MUTE signal.
© The MUTE function does not work curing the
SERIAL TEST MODE. The operation of he MUTE
function is checked with a specific code.
Codes
received
during
the
SERIAL
TEST
MODE
are
effective irrespective of the display mode.
The
key
entry
inhibit
state
with
16-secon{
dusration
is not available when the ADAPTOR is t urned
ON/OFF.
When the initial setting is carried out by means of
the initial setting AMP (3F) and the initial ettiaing GE
(DF) code.
< SPEAKERS A/B turn OFF in response tasofftware
operation.

94/3700
894/9
KA
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KA-894/994/V3700
a CIRCUIT DESCRIPTION
KEY MATRIX
KRO KRI KR2
VOLUME DOWN 3-Stereo
CENTER | CENTER SPEAKER Dolby
MODE manana Pro Logic
BALANCE :
oe hide Pear spew | LOUDNESS [517 St1pin
DELAY TIME LINE- :
TEST-TONE DOWN STRAIGHT $16 50pin
SPEAKER | DELAY TIME
POWER
ON/OFF
UP
|
POWER
|
pF7/S15
A9PIN
PCO/KRO PC1/KR1 PC2/KR2
14pin 15pin 16pin
$20 54pin
$19 53pin
FL. A. p/KSOO
FL. A. n/KSO1
FL. A. m/KSO2
FL. A. k/KSO3
FL. A. j/KSO4
FL. A. a/KSO5
FL. A. b/T. o/KSO6 PF6/S14 48PIN
FL. A. h/T. n/KSO7 PF5/S13 47PIN
FL. A. f/T. m/KSO8 PF4/S12 46PIN
FL. A. g/T. I/KSO9 PF3/S11 45PIN
FL.
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k/KS10
PF2/S10
44PIN
PF1/SO9 43PIN
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FL. A. c/T. j/KS11
PFO/SO8 42PIN
FL. A. e/T. i/KSyqy11
FL. T. h/KSyyy2 PD7/S07 41PIN

KA-894/994/V3700
CIRCUIT
DESCRIPTION
PIN LAYOUT
MICRO
PROCESSOR
CXP82320-1580
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