Kenwood KGC-4400 User manual

GRAPHIC
EQUALIZEF
is
Knob (button) Panel ass’y*
- (K27-1537-08) (A20-)
Knob
(button)
Knob
(slide)
Knob
(slide)
(K27-1538-08)
(K29-2241-08)
x2
(K29-2240-08)
x5
Knob (lever)
(K29-2242-08)
Metallic cabinet
(AO 1-1445-08)
Cord with connector
(FUSE 1A)
(E30-1400-08)
Cord with din connector (input)
(E30- 1396-08)
Cord with din connector (low)
(E30-1399-08)
Cord with din connector (rear)
(E30-1397-08)
Cord with din connector (front)
(E30-1398-08)
Refer to Parts list on page 6

DISASSEMBLY FOR REPAIR
Remove metallic cabinet (@ and @). remove 2 screws
- (@&). Release Main pcb (B/2) from chassis (—this pcb’s
projection is inserted in chassis (Ge) anc GRD).
Remove 2 knobs from switches (GE, S.W) (@).
Draw out front panel onward slowly while removing both-
side panel’s hooks from chassis carefully (@ and @).
Remove 3 top-side hooks from Volume pcb’s projection,
then 4 bottom-side hooks (@).
Pull front pane! onward, holding Voiume pcb side with
hand (@). .

DISASSEMBLY
FOR
REPAIR/BLOCK
DIAGRAM
This
figure
(Q®)
shows
the
caution
concerning
3
knobs
(FADER,
S.W
F
select.
S.W
out)
and
wiring
between
S.W
F
select
switch
and
Main
pcb,
when
KGC-4400
is
assem-
bled.
UW typ: if
ICIA
IC
1B
meleio) V
ISOLATION
LCH WY AMP
INPUT
1C2A
ISOLATION
AMP
INPUT
iC2B
LEVEL
PLI +8
“es Q2 Q3~7
AUTO
power |_| POWER ——j MUTING
: SUPPLY
Sw
O ©
Acc
+ 14.4V
LOW FREQUENCY
KGG-4400
—KGC-4400
CIRCUIT DESCRIPTION
Description of components
Main unit (W02-0662-08)
Components
Q1
Mute driver (ON/OFF comparator)
Mute driver (Switch for setting the OFF time)
Mute driver (Switch for setting the ON time)
Mute driver (tnverter}
Q11~20 Semiconductor inductor Pe
isolation amp.
Isolation amp.
IC1B EQ. amp.
IC2B EQ. amp.
IC3A Stereo/mono switch for sub-woofer system
IC3B LP.F.
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w
iw
evPAny othe cttesteenlrrt Hoan 8 cone ate TM tensors NPIL + ot wld oF
ali
Q8, 9, 10
ill
~
at. ies
IC1A~IC3B: AN6557
Block Diagram
oy ca
ZS Zes
bbdSe 556 bé
Vee Vol Vint Vint VEE Vin2 Vine Voz Vcc
(GND)
Pin Name
CC
Ch.1 Output
Ch.1 Invert Input
Ch.1 Non Invert input
Vee (GND)
a aa Ch.2 Non Invert Input
Ch.2 Invert Input
| BY Ch.2 Output
a ane
Vcc
HE
Hh
a a nara overheat
AE Cam EET
<i soar. tk wsdl aabaain Aten salt itelintae Chait. Stele akrisagy: Bima ds

FRONT / AVANT
GND
REAR/ARRIERE
LOW /BAS
sie
RED
Sts
SES
ERE:
GND
usenet
SSR
us
ae
a
Ka
BS
SSRN
PETE:
SAR
S
SEAN
— tk Sere KGC-4400
Refer to the schematic diagram for the values of resistors and Capacitors.
: The PC board drawing is viewed from the side easy to check.

IC I~3 :AN6557
Q
' Q8~10 72SC28781A,B)
Qll+20 72SC2240(BL)
(WO2 -0662-08)}(B/2).
C6l RII3
H.9V
10ui6 560
MUTING
Ril4 Ql0
6.8K
100 wl6
3 100uI6
R134
100
N
Rt] Rt] A+ +
Te 77° TZ TT]
LOW LEVEL] (FADER
3
2 VRE >
C24
0.0033 0.4% 50
C22
R36
47K
EQ
AMP
a
5
NOP
aS
ue
C6
ot
°o
Nee
uu —
R63
Be
as
Oo
4.7K : ce ON ~
INPUT
ir
/'
[227
=
aX
ny
coun ov
| hesee | Aor oe ee
{lf
t.
ins wg
on naZZwo 5
at Y6
729C2274KiE}
2SCISIS(Y)
2SAIOIS(Y)
:1S2076
:DSMIAI
*ROS.6E (B)
“ERZ-COSDK220
TO REAR
e DC voltages are as measured with a high impedance
voltmeter with no signal input. Values may vary slightly
due to variations between individual instruments
or/and units.
bate
ee
tS
Kenwood
follows
a
policy
of
continuous
advancements
in
development.
For
this
reason
specifications
may
be
changed
without
notice.
;
(WO2-0663-08)
TO FRONT
KGC -4400{K) KGG-4 Ang
en ee ee ee ee eer
Ee pn ee ee nO se
TO LOW FREQ
N=NW{Ol0)B:
|
i
i
i
i
:
H
4
4
t
f
£
a
|
q
i
a
{
gs Festi cre se tien Res Sat BAAS ea AT REI Se SSA REI HI
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KBC-4400 KGC-4400
EXPLODED
VIEW
aneweers
PARTS
LIST
Parts without Parts No. are not supplied.
Les articias non mentionnes dans le Parts No. ne sont pas fournis.
Telle onne Parts No. werden nicht geliefert.
Description
Ref.
No.
Address
|New
Parts
No.
Parts
SRE
tk
£1
F
SB
dE
Bahaayvm
&
a
A01-1445-08
Re-
nation imarks
METALLIC CABINET ASSY
AZO-4616-08 PANEL ASSY
1
A
AZO-4617-08
PANEL
ASSY
A2'1-0474--08 DRESSING PANEL
Hii~-O1i0?-08 LIGHTING PLATE (A)
B19-0376-08 LIGHTING PLATE (B}
B46-0100-08 WARRANTY CARD
B46-0123-06 WARRANTY CARD
BSO-S842-00 INSTRUCTI8N MANUAL.
BS50-5990-00 INSTRUCTISN MANUAL
HO1-5639-08 ITEM CARTS&N BAX,
H03-076 7-08 QUTER PACKING CASE
$:W
FADER
SiVR
VR
VR
VR
VR
HiO0-1821-08
PALYSTYRENE
FSAMED
FIXTURE
$3
IVR7|VREI|VRI
IVR)
2/VR3|VR4|VR5|
Hi2-0194-08
PACKING
FIXTURE
50
80
[SOHz
H25-0239-08
PRASTECTISN
BAG
J21-3693-08 MOUNTING HARDWARE
K27-1537-08 KNQB (BTN) GE
K2?-1538-08 KNQB (BTN) 5. W
29-2240-08 KNOB (SLIDE) EN(SO ~-12. SKHZ)
K29~-2241-08 KN@B (SLIDE) S.W BUT>FADER
K29-2242-D08 KNSB (LEVER) S.W F SELECT
N99-0201-08 SCREW SET
NO9-1540-08 SCREW (BI-TAF} @2X5
MAIN UNIT (W02-0662-08)
2A B30-1110-08 LAMP
CK45BiHB21K CERAMIC B82 OPF K
CEO4CWIC4AR?M ELECTRA 4. (UF 16WV
CC45SL1H1i01J CERAMIC 1 00PF J
CE04CW1C100M ELECTRS 10UF 16WYV
CFICVIH4AT SI MF 0.047UF J
CEQ4CW1C4R?M ELECTRA 4. 7UF 16WV
CFPeSViIH123I MF 0.012UF J
CEO4CW1HO10"
ELECTRA
1.
OUF
SOWV
CFI2VIH3S2I MF 3300PF t}
CEO4CWLHR4
7M
ELECTRA
0.
47UF
SOWV
CK4S5BiHB21K CERAMIC 820PF K.
CED4EWLHORIM ELECTRA 0. LUF SOWV
CK45Bi Hee 1K PERAMIC 22OPF K.
CF9I2ZVIH22 SI MF 0.022UF J
CC4SSLIWHLoLld CERAMIC LOOPF J
TED4CWiC 100M ELECTRA 1OUF
MEO4CWiC aR TM ELECTR 4. P7UF 16WYV
CL4SSLinioiJ CERAMIC ,0D0FF J
3
CEB4CWil4?7OM
ELECTRA
47UF
16WYV
LED4CWLHOLOM ELECTRA 1. OUF SOWV
CED4CWLHR33M
ELECTRA
0.
33UF
5
QWV
>|
CED4CWLHR4
7M
ELECTRA
0.
4°UF
SOW
a
1
CSLSE1LVRISM
TANTAL
0.
1S5UF
S5WYV
4
(Bi)
BLK
-
NB6-2604-45
bee
fa
§
(
CED4CWLHR2eeM
ELECTR®
0.
22UF
SOW
A
M2.6x
;
7
~
CE
C
ELECTRA
10UF
L6WV
@
o2x5
(Bi)
NO9-1540
-08
SN
|
EOsEreeen
E: Scandinavia & Europe H:Audio Club K:USA P: Canada
S: South Africa T:England UV: PX(Far East, Hawaii)
:
6
Parts
with
the
exploded
numbers
larger
than
700
are
not
supplied.
UE
;
AAFES(Europe)
X:
Australia
M:
Other
Areas
A\
indicates
safety
critical
components.
ne egceeb tpg ep ttw aveaneae ane we de GOT NENA nA NS Agen A ee a mre
a ee ee ey ee te ee ae . Roker
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KGC-4400
»
New
Parts
PARTS
LIST
Parts without Parts No. are not supplied.
Les
articles
non
mentionnes
dans
Ie
Parts
No.
née
sont
pas
fournis.
Telle ohne Parts No. werden nicht geliefert.
Ref.
No.
Address
|New
Parts
RES
|
Mig
Parts No.
gs mn F #
Description
Bm ASR
CFI2VIH1LO3I MF O.010UF J
CEDADWIC4
71M
ELECTR
4
7OQUF
L6WV
i
MEQ4CW
il
100M
ELELCTRS
LOQUF
16WV
!
C90-
1263-05
ELECTRE
1O0UF
1L6WV
MED4CWIC220M ELECTRA Ler 14WV
90-1263~-05 ELECTRA LO0UF L6WV
CORD WITH DIN CANNECTSRCINPUT)
CARD WITH DIN CONNECTOR (REAR)
CARD WITH DIN C&NNECTOR (FRONT)
CSRD WITH DIN CS&NNELTAR (LOW)
RARD WITH CANNECTAR(FUSE 1A)
F30-1396-08
E30-1398~-08
£30-139?-08
E30-1399-08
E30-1400-08
Pantin tate nani ERA Gee 3
F29-0046-05 DIN CANNETAR CAP
RS14DR3A100J
RD14BB2H1005
RDIA4RB2HLe210
FL-PROBF RS 10 J iW
RD 10 J i/2W
RD 120 J ive
21, SAY Wp Dee Onision hele bette
PUSH SWITCH (G.-le2
FUSH SWITCH (S. W)
$40~-2346-08
$40-4069~08
152076 DIQDE
DSMILAL DIQDE
RDS. 6E(B) ZENER DISDE
AN6S5? IC(QP AMP X2)
eolee (ak (E) TRANSISTOR
25C181S5(¥) TRANS ISTSR
25AL01ISCY) TRANSISTOR
25C2878 (A: B) TRANS IST8R
2ole240 (BL) TRANSISTOR
ee ee Ee ee eT eee ee ee
VOLUME UNIT (W02-0663-08)
R13-3028-08
PATENT
IQMETER
(20K
BX2)
Ell
R13-3029-08
PQTENTIQMETER(10KWX2)
FADER
R13-3030-08
PATENTIOMETER(10KBX2)
5.W
SUT
$31-2098-08
SLIDE
SWITCH
(SoM
F
SELECT)
DF pc En SB ee
E: Scandinavia & Europe H:Audio Club K: USA P: Canada
S:
South
Africa
T:England
-U:
PX(Far
East,
Hawait)
UE.
AAFES(Europe}
X:
Australia
MM:
Other
Areas
A
indicates
safety
critical
components.

KGC-4400
PACKING/SPECIFICATIONS
Polystyrene foamed fixture
(H10-1821-08)
Protection bag
{H25-0239-08)
Protection
(H25-0112-04)
Screw set
Instruction manual*
(N99-0201-08)
/ (B50-)
hes ip
Warranty card*
(B46-)
Dressing Panel
Protection bag {A21-0474-08)
(H25-0096-08)
Mounting hardware
(J21-3698-00)
Item carton box
(HO1-5639-08)
* Refer to Parts list on page 6
SPECI FICATI 0 NS Specifications subject to change without notice
\
Equalizer Section General
Equalizer Center Frequency 50 Hz, 200 Hz, 800 Hz, Operating Voltage 144 V (11~16 V)
3.2 kHz, 12.8 kHz Current Consumption (MAX) 120 mA
Equalization Range +12 dB Dimensions 89 (W) X25 (H) X 110 (D)
Subwoofer Cut-off Frequency 50 Hz, 80 Hz, 150 Hz Weight 0.4 kg
Subwoofer Output Gain — oo ~+10dB
Subwoofer Cut-off Slope 12 dB/oct
Audio Section Note: sedi Stich co
eparlmpedancs 10k Component and circuitry are subject to modification to insure
OPE best operation under differing local conditions. This manual 1s
Output Impedance 600 based on, the U.S. (K) standard, and provides information on
Signal to Noise Ratio 100 dB regional circuit modification through use of alternate schemat-
THD. 001% ic diagrams, and information on regional component varta-
Frequency Response 20 Hz~60 kHz (—3 dB) tions through use of parts list
Gain O dB
TRIO-KENWOOD CORPORATION °
Shionogi Shibuya Building, 17-5, 2-chome Shibuya, Shibuya-ku, Tokyo 150, Japan
KENWOOD ELECTRONICS
DIVISION OF KENWOOD US.A. CORPORATION
1315 E. Watsoncenter Rd., Carson, California 90745; U.S.A.
75 Seaview Drive, Secaucus, New Jersey 07094, U.S.A.
TRIO-KENWOOD CANADA INC,
1070 Jayson Court, Mississauga, Ontario, Canada L4W 2V5
TRIO-KENWOOD ELECTRONICS, NV.
Leuvensesteenweg 504 B-1930 Zaventem, Belgium
TRIO-KENWOOD ELECTRONICS GmbH
Rembrucker Str. 15, 6056 Heusenstamm, West Germany
TRIO-KENWOOD FRANCE S.A.
5, Boulevard Ney, 75018 Paris, France
TRIO-KENWOOD (AUSTRALIA) PTY. LTD. «ncorPoraTeD IN NSW)
4E Woodcock Place, Lane Cove, N.S.W. 2066, Australia
KENWOOD & LEE ELECTRONICS, LTD.
Wang Kee Buiiding, 5th Floor, 34-37, Connaught Road, Central, Hong Kong
© 1985-6 PRINTED IN JAPAN B51-1789-00 (B) 2671
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BE ee ape ee ay ees