Kenwood 4042A Service Manual
Kenwood 4042A - KGC Equalizer / Crossover Manual
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Kenwood 4042A manual content summary:
- Kenwood 4042A | Service Manual - Page 1
GRAPHIC EQUALIZER KGC-4042A SERVICE MANUAL REVISED S/No. 10700001~ Panel ass'y (A64-0071-08) C 2001-8 PRINTED IN JAPAN B51-7838-00 (4) 3395 Knob (EQ) (K24-0700-08) Knob (FAD) (K29-5541-08) Trim plate (A21-0474-03) Screw set (N99-1543-08) Bracket (J21-3693-04) Knob (SUB) (K24- - Kenwood 4042A | Service Manual - Page 2
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 - Kenwood 4042A | Service Manual - Page 3
Q8 Q9 Q10 Q11 Q12 Address 3B 4D 5D 4B 4B 3C 7 Refer to the schematic diagram for the values of resistors and capacitors. EQ ON 3 SW2 C B LAMP3 LAMP4 F G H I J PC BOARD (Foil side view) ELECTRIC UNIT EQ ON/OFF PWB MAIN PWB C150 C101 R51 C51 R54 R4 R53 R3 R55 R5 R201 - Kenwood 4042A | Service Manual - Page 4
C4 22u25 + C5 10u50 R205 + 4.7K 12.6V IC5(1/2) EQ AMP 5.0V 3 8 1 2 3.4V C11 22u25 + KGC-4042A 7 CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended •DC voltages are as measured with a high impedance voltmeter. parts (refer to parts - Kenwood 4042A | Service Manual - Page 5
EXPLODED VIEW B KGC-4042A B 30 B 1 4 50 200 800 3.2K 12.8K FREQ LEVEL VR2-1 VR2-2 VR2-3 VR2-4 VR2-5 VR2-6 VR2-7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LAMP4 23 LAMP2 705 26 A 2 704 706 28x7 A LAMP1 LAMP3 23 FADER 3 VR1 SUB C SW1 722 27 1 B ILLUM 724 SW3 SW2 EQ. B D 721 723 - Kenwood 4042A | Service Manual - Page 6
0100-50 WARRANTY CARD - B64-0229-00 INSTRUCTION MANUAL 15 3B E30-3646-08 CORD WITH PLUG (IN) 16 3B E30-3647-08 CORD WITH PLUG (OUT-F) 17 3B E30-3648-08 CORD WITH PLUG (OUT-R) 18 3B E30-3649-08 CORD WITH PLUG (OUT-SUB) 20 2B E30-3654-08 DC CORD 22 2B F29-0049-05 INSULATING COVER - Kenwood 4042A | Service Manual - Page 7
08 CN13 ∗ E41-0090-05 CN14 ∗ E39-0457-08 CN15 E40-3677-05 Description PIN ASS'Y WIRING HARNESS PIN ASS'Y WIRING HARNESS SOCKET FOR PIN ASS'Y Des- AN tina- Ref. No. d e Parts No. tion dw R98 ,99 RK73FB2A104J R100 RK73FB2A332J R101 RK73FB2A223J R102 RK73FB2A561J R103 RK73FB2A103J - Kenwood 4042A | Service Manual - Page 8
KGC-4042A ∗New Parts PARTS LIST Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohane Parts No. werden nicht geliefert. AN Ref. No. d e dw Parts No. Description Des- AN tina- Ref. No. d e Parts No. tion dw Des-
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KGC-4042A
2001-8 PRINTED IN JAPAN
B51-7838-00 (4) 3395
GRAPHIC EQUALIZER
SERVICE MANUAL
C
Knob (FAD)
(K29-5541-08)
Trim plate
(A21-0474-03)
Screw set
(N99-1543-08)
Bracket
(J21-3693-04)
Power connection cord
(E30-3654-08)
RCA pin cord (IN)
(E30-3646-08)
RCA pin cord (OUT, F)
(E30-3647-08)
RCA pin cord (OUT, R)
(E30-3648-08)
RCA pin cord (OUT, SUB)
(E30-3649-08)
Metallic cabinet
(A01-2568-08)
RCA pin cap
(F29-0049-05)
Knob (SUB)
(K24-0710-08)
Knob (EQ)
(K24-0700-08)
Panel ass’y
(A64-0071-08)
REVISED
S/No. 10700001~