Kenwood 4042A Service Manual - Page 2
Block Diagram - kgc
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UPC - 019048037244
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KGC-4042A 2 Lch INPUT Rch IC4 NJM2060M ISO IC5 UPC4570G2 EQ Q201-205 2SC2712 Lch Q251-255 2SC2712 Rch EQ B.P.F EQ B.P.F EQ SW1 OFF ON H.P. FILTER IC2 NJM2068MD BUFFER A.M.P SWITCHING TR Q8,9 2SC3327-A MUTE Q10,11 TR 2SC3327-A Lch FRONT Rch Lch REAR Rch BLOCK DIAGRAM ACC GND P. C SW3 LAMP1,2 (OR) LAMP3,4 (GR) LED1-5 Q1 2SC4640 Q2 2SC1741A +B Q3 2SC2060 Q4 DTA114ES Q5 DTC114ES POWER SUPPLY Q6,7 2SA1782 MUTE DRIVE LED6,7 METER LED SUPPLY SUB WOOFER ON OFF SW2 IC3 NJM2068MD L.P. FILTER 30~150Hz Lch SUB Rch Q12 MUTE 2SC3327-A PRE. GND
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KGC-4042A
BLOCK DIAGRAM
Lch
Rch
INPUT
ISO
IC4
NJM2060M
UPC4570G2
EQ
IC5
SW1
Lch
EQ
B.P.F
Rch
EQ
B.P.F
2SC2712
Q201-205
Q251-255
2SC2712
SW3
(OR)
LAMP3,4
LED1-5
LAMP1,2
(GR)
EQ
POWER
Q5
Q4
Q3
2SC2060
DTA114ES
DTC114ES
SUPPLY
2SC1741A
2SC4640
Q1
Q2
ACC
GND
P. C
MUTE
DRIVE
2SA1782
Q6,7
FILTER
H.P.
SWITCHING
TR
LED6,7
A.M.P
BUFFER
SW2
WOOFER
SUB
MUTE
FILTER
L.P.
NJM2068MD
IC3
2SC3327-A
Q8,9
MUTE
NJM2068MD
IC2
2SC3327-A
Q10,11
TR
2SC3327-A
Q12
Rch
Lch
SUB
Lch
Rch
REAR
Rch
Lch
FRONT
ON
OFF
+B
OFF
ON
30~150Hz
PRE. GND
METER LED SUPPLY